WO2017132994A1 - 信息发送、接收、上行同步、数据发送指示方法及设备 - Google Patents
信息发送、接收、上行同步、数据发送指示方法及设备 Download PDFInfo
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- WO2017132994A1 WO2017132994A1 PCT/CN2016/073666 CN2016073666W WO2017132994A1 WO 2017132994 A1 WO2017132994 A1 WO 2017132994A1 CN 2016073666 W CN2016073666 W CN 2016073666W WO 2017132994 A1 WO2017132994 A1 WO 2017132994A1
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- terminal device
- access network
- information
- transmission resource
- network device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Definitions
- the present invention relates to the field of mobile communications technologies, and in particular, to a method for transmitting, receiving, uplink, and transmitting data.
- the user equipment (UE) can be pre-installed on the corner of the roadside unit (RSU).
- D2D Device to Device
- the UE can transmit data to the base station without establishing a direct connection with the base station, which reduces the overhead of the base station maintaining the UE connection. For example, there are 100 vehicles in a cell, and 4 RSUs are deployed in the cell. At this time, the base station only needs to establish a connection with the four RSUs and maintain connection information with the four RSUs. It is necessary to communicate with these RSUs, and data can be forwarded to the base station through the four RSUs.
- D2D Device to Device
- the RSU can also broadcast some important service information through the D2D link broadcast.
- some traffic broadcast related information such as broadcast traffic light information or speed limit card information, can be sent through the RSU, all within the RSU coverage. All vehicles can receive traffic information from the RSU.
- the priority of the transmission resources used by the RSU is generally higher than the vehicle status information transmitted by the vehicle and the vehicle on the D2D link. Therefore, after the base station allocates transmission resources for one RSU, it will generally be allocated by broadcasting.
- the transmission resources of the RSU are broadcasted, so that after other UEs within the coverage of the base station receive the broadcast, the transmission resources are not used again to avoid collision with the data sent by the RSU.
- this method can avoid collisions, it also causes waste of transmission resources.
- the present application provides a method for transmitting, receiving, uplink, and transmitting data, and a device for solving the technical problem that the base station wastes transmission resources when allocating transmission resources for the RSU.
- a method for receiving information including:
- the first information is used to indicate the first transmission resource
- the first transmission resource is the interface where the first terminal device is located a resource for transmitting data on the D2D link of the first terminal device and other terminal devices allocated by the network device to the first terminal device, or the first transmission resource is a pre-configured device of the first terminal device a resource for transmitting data on a D2D link of the first terminal device and other terminal devices;
- the second terminal device determines, according to the first information, whether the first transmission resource is a transmission resource that is selectable by the second terminal device.
- the first terminal device may send information about the transmission resource used by the first terminal device (for example, the transmission resource used by the first terminal device is referred to as the first transmission resource), so that other terminal devices that receive the information may not The first transmission resource is used again, thereby avoiding the occurrence of a collision situation.
- the first terminal device sends the first information, and the coverage of the first terminal device is generally smaller than the coverage of the base station, and even if the first terminal device broadcasts the first information, the terminal device that receives the first information
- the number is generally smaller than the number of terminal devices broadcast by the receiving base station, and the terminal device that does not receive the first information sent by the first terminal device can continue to use the first transmission resource, thereby improving the utilization rate of the first transmission resource. Reduce waste of resources.
- the coverage of the first terminal device is greater than the communication range of the first terminal device, only the terminal device located outside the communication range of the first terminal device may not receive the first information, that is, the portion.
- the terminal device can use the first transmission resource, and at this time, it does not collide with the transmission of the first terminal device. That is, by adopting the technical solution of the present application, the utilization of resources is improved in the case of avoiding collision.
- the first information includes mapping information, where the mapping information is used to indicate that, in the transmission resource broadcast by the access network device, the access network device allocates the first one to the first terminal device Transmitting a resource, where the first transmission resource is part of the transmission resource or all transmission resources; or
- the first information includes a scheduling allocated resource location and a data resource location occupied by the first transmission resource.
- the first information may include different information, so that the first transmission resource may be indicated in different manners, which is more flexible.
- the second terminal device receives, by using the D2D link, the first sent by the first terminal device
- the first information used by the terminal device includes:
- the first terminal device may send the first information by using a broadcast, and may send the first information to the plurality of second terminal devices by sending only one time, which saves transmission resources.
- the method further includes:
- Receiving, by the second terminal device, the first information used by the first terminal device that is sent by the first terminal device by using the D2D link including:
- the second terminal device receives the first request response message sent by the first terminal device by using a D2D link, where the first request response message carries the first information.
- the first terminal device may send the first information to the second terminal device when the second terminal device sends the first request message, so that if the second terminal device does not exist in the range covered by the first terminal device, the first terminal
- the device may save the transmission resource without sending the first information, and the first terminal device may send the first message when the second terminal device sends the first request message to the first terminal device.
- the information is such that the second terminal device can acquire the first information.
- the method also includes:
- the second terminal device further receives, by using the D2D link, priority information of the service that is sent by the first terminal device by using the first transmission resource.
- the second terminal device determines, according to the first information, whether the first transmission resource is optional Transmission resources, including:
- the second terminal device Determining, by the second terminal device, the first transmission according to the priority information of the service performed by the first terminal device by using the first transmission resource and the priority information of the service performed by the second terminal device Whether the resource is an optional transmission resource.
- the first terminal device may send the priority information of the service performed by the first terminal device through the first transmission resource, in addition to the first information, so that the second terminal device may pass the first transmission according to the first terminal device.
- the priority information of the service performed by the resource and the priority information of the service performed by the second terminal device to determine whether to select the first transmission resource, for example, the priority of the service performed by the first terminal device through the first transmission resource If the priority of the service performed by the second terminal device is higher, the second terminal device may not select the first transmission resource, that is, determine that the first transmission resource is an unselectable transmission resource, so as to avoid collision with the first terminal device.
- the second terminal device may select the first transmission resource, that is, determine the first transmission resource. As an optional transmission resource, in this way, it is possible to ensure that the service with higher priority can be prioritized Row.
- the method also includes:
- the second indication information is used to indicate that the second terminal device stops sending data to the first terminal device, or the second indication information is used to indicate that the second terminal device controls to send the a maximum amount of data of the first terminal device;
- the data includes data that is forwarded by the second terminal device to the access network device by using the first terminal device;
- the second terminal device stops to the first according to the indication of the second indication information.
- the terminal device sends data; or, if the second indication information is used to indicate that the second terminal device controls the maximum amount of data sent to the first terminal device, the second terminal device according to the second indication
- the maximum amount of data indicated by the information controls the amount of data sent to the first terminal device.
- the uplink network may be caused by the access network device.
- the access network device may send the second indication information, so that the second terminal device can The second indication information controls the amount of data that is forwarded to the access network device by the first terminal device, saves uplink transmission resources, and avoids uplink congestion as much as possible, so as to ensure the normal progress of the communication process.
- a method for transmitting information including:
- the access network device is the resource for transmitting data on the D2D link of the first terminal device and other terminal devices allocated by the first terminal device, or the first transmission resource is the first terminal device in advance.
- a resource for transmitting data on a D2D link of the first terminal device and other terminal devices configured.
- the first terminal device may send information about the transmission resource used by the first terminal device (for example, the transmission resource used by the first terminal device is referred to as the first transmission resource), so that other terminal devices that receive the information may not
- the first transmission resource is used again, thereby avoiding the occurrence of a collision situation.
- the first information is sent by the first terminal device, and the coverage of the first terminal device is generally smaller than the coverage of the base station, and the first information is received even if the first terminal device broadcasts the first information.
- the number of the terminal devices is generally smaller than the number of the terminal devices broadcasted by the receiving base station, and the terminal device that does not receive the first information sent by the first terminal device can continue to use the first transmission resource to maximize the first transmission resource. Utilization, reducing resource waste.
- the coverage of the first terminal device is greater than the communication range of the first terminal device, only the terminal device located outside the communication range of the first terminal device may not receive the first information, that is, the portion.
- the terminal device can use the first transmission resource, and at this time, it does not collide with the transmission of the first terminal device. That is, by adopting the technical solution of the present application, the utilization of resources is improved in the case of avoiding collision.
- the first information includes mapping information, where the mapping information is used to indicate, in the transmission resource broadcasted by the access network, the first transmission resource allocated by the access network device to the first terminal device
- the first transmission resource is a part of the transmission resource or all transmission resources of the transmission resource;
- the first information includes a scheduling allocated resource location and a data resource location occupied by the first transmission resource.
- the first terminal device sends the first terminal device by using a D2D link
- the first information including:
- the first terminal device broadcasts the first information by using the D2D link.
- the method further includes:
- the first terminal device further broadcasts, by using the D2D link, priority information of a service that is transmitted by the first terminal device by using the first transmission resource.
- the method further includes:
- the first terminal device Receiving, by the first terminal device, information about the second transmission resource sent by the access network device, to determine that the access network device has stopped allocating the second transmission resource to the coverage of the access network device
- the other terminal device the second transmission resource is a part of the transmission resource or all the transmission resources included in the first transmission resource.
- the first terminal device may request the access network device to stop allocating the first transmission resource to other terminal devices, so as to avoid collision.
- the method further includes:
- the first terminal device sends the first information used by the first terminal device by using a D2D link, including:
- the first terminal device sends a first request response message to the second terminal device by using the D2D link, where the first request response message carries the first information.
- the first request response message further, by the first terminal device, by using the first transmission resource Priority information for the business being conducted.
- the possible implementation manner of the sixth possible implementation manner in the seventh possible implementation manner of the second aspect, the method also includes:
- the first indication information is used to indicate that the first terminal device stops forwarding data to the access network device, or the first indication information is used to indicate that the first terminal device controls forwarding to the The maximum amount of data of the access network device; the data includes data that is forwarded by the other terminal device to the access network device by using the first terminal device;
- the first terminal device stops the access according to the indication of the first indication information.
- the network device sends data; or, if the first indication information is used to indicate that the first terminal device controls the maximum amount of data sent to the access network device, the first terminal device according to the first indication The maximum amount of data indicated by the information controls the amount of data sent to the access network device.
- the uplink network may be caused by the access network device.
- the access network device may send the first indication information, so that the first terminal device can The first indication information controls the amount of data forwarded to the access network device, saves uplink transmission resources, and avoids uplink congestion as much as possible, and tries to ensure the normal progress of the communication process.
- the third aspect provides a data sending indication method, including:
- the access network device determines that the amount of data forwarded to the access network device by the first terminal device is greater than or equal to a first threshold
- the access network device sends indication information, where the indication information is used to control the amount of data that the first terminal device forwards to the access network device.
- the uplink network may be caused by the access network device.
- the access network device may send the indication information, so that the first terminal device can be controlled to forward to the device.
- the amount of data on the access network device saves uplink transmission resources, and also avoids the situation of uplink congestion, and tries to ensure the normal progress of the communication process.
- the access network device sends the indication information, including:
- the access network device sends first indication information to the first terminal device, where the first indication information is used to indicate that the first terminal device stops forwarding data to the access network device, or the first The indication information is used to indicate that the first terminal device controls the maximum number of forwarding to the access network device
- the data includes data that other terminal devices forward to the access network device through the first terminal device.
- the access network device sends the indication information, including:
- the access network device sends the second indication information to the terminal device in the coverage of the access network device, where the second indication information is used to indicate that the terminal device in the coverage of the access network device stops to the
- the first terminal device sends data, or the second indication information is used to indicate that the terminal device in the coverage of the access network device controls the maximum amount of data sent to the first terminal device; the data includes the The terminal device within the coverage of the network access device forwards data to the access network device by using the first terminal device.
- the access network device can send indication information in different manners, so that different terminal devices can be instructed to achieve the effect of controlling the amount of uplink data, and the control mode is flexible, and can be selected according to actual needs.
- the method further includes:
- the access network device receives the first information sent by the first terminal device;
- the first transmission resource includes a terminal-to-terminal D2D chain of the first terminal device and other terminal devices pre-configured for the first terminal device Resources for transmitting data on the road;
- the access network device determines to stop allocating the second transmission resource to other terminal devices in the coverage of the access network device; the second transmission resource is part of the transmission resource or all transmissions included in the first transmission resource Resource
- the access network device sends the information about the second transmission resource to the first terminal device.
- the first terminal device may request the access network device to stop allocating the first transmission resource to other terminal devices, so as to avoid collision.
- the access network device can notify the first terminal device of the result of the allocation, so that the first terminal device can know which transmission resources the access network device stops to allocate to other terminal devices, thereby facilitating the subsequent selection of the appropriate transmission by the first terminal device. Resources.
- a first uplink synchronization method including:
- the first terminal device determines, according to the condition information, whether the first terminal device has an uplink out-of-synchronization phenomenon.
- the access network device If the first terminal device is a stationary terminal device deployed on the road, its uplink timing generally does not change. However, according to the prior art, the access network device still needs to continuously send uplink timing information for the first terminal device, which causes unnecessary signaling overhead. With the technical solution provided by the application, when the first terminal device sends the second request message to the access network device, the first terminal device can notify the access network device that the first terminal device will always be in a static state, and then the access network device only needs to go to the first A terminal device sends uplink timing information to save signaling overhead.
- the access network device may send condition information to the first terminal device, so that the first terminal device may determine whether the first terminal device has an uplink out-of-synchronization phenomenon, for example, if an uplink out-of-synchronization phenomenon occurs, the first terminal device
- the device can perform uplink synchronization with the access network device in time, so that, in the case of saving signaling overhead, uplink synchronization between the first terminal device and the access network device can be ensured as much as possible to avoid the first terminal device.
- the communication process with the access network device is affected.
- the method further includes:
- the first terminal device determines that the first terminal device has an uplink out-of-synchronization phenomenon according to the condition information, the first terminal device initiates an uplink synchronization process to perform uplink synchronization with the access network device. .
- the uplink synchronization process may be initiated, so that the uplink synchronization may be resumed with the access network device in time.
- the condition information includes a duration threshold or a packet loss threshold; the duration threshold is used to indicate a signal received by the first terminal device from the access network device.
- the maximum time offset in the predetermined time range, the number of lost packets is used to indicate the maximum number of lost packets sent by the first terminal device to the access network device.
- the condition information may include different contents, so that the first terminal device can perform judgment according to different condition information, and the manner is flexible.
- the first terminal device is configured according to the The condition information determines whether the first terminal device has an uplink out-of-synchronization phenomenon, including:
- the first terminal device determines that the first terminal device has an uplink out-of-synchronization phenomenon.
- the first terminal device if the condition information includes the packet loss threshold, the first terminal device is configured according to The condition information determines whether the first terminal device has an uplink out-of-synchronization phenomenon, including:
- the first terminal device determines that the number of lost packets sent to the access network device is greater than or equal to the threshold number of lost packets
- the first terminal device determines that the first terminal device has an uplink out-of-synchronization phenomenon.
- the first terminal device can select different judging processes according to different contents included in the condition information.
- a second uplink synchronization method including:
- the access network device receives a second request message sent by the first terminal device for requesting to establish a connection; the second request message carries third indication information that is used to indicate that the first terminal device is always in a static state;
- the access network device sends condition information to the first terminal device; the condition information is used to determine whether the first terminal device has an uplink out-of-synchronization phenomenon.
- the condition information And including a duration threshold or a packet loss threshold;
- the duration threshold is used to indicate a maximum time offset of the signal received by the first terminal device from the access network device within a predetermined time range.
- the threshold of the number of lost packets is used to indicate the maximum number of lost packets sent by the first terminal device to the access network device.
- the access network device receives an uplink synchronization process initiated by the first terminal device to perform uplink synchronization with the first terminal device.
- the access network device can receive the uplink synchronization process initiated by the first terminal device, so that the uplink synchronization is re-implemented with the first terminal device, so that the communication process between the first terminal device and the access network device can be performed normally.
- a first terminal device including:
- a receiver configured to receive first information sent by the first terminal device by using a D2D link, where the first information is used to indicate a first transmission resource, where the first transmission resource is where the first terminal device is located a resource for transmitting data on the D2D link of the first terminal device and other terminal devices allocated by the access network device to the first terminal device, or the first transmission resource is pre-configured by the first terminal device Resources for transmitting data on the D2D link of the first terminal device and other terminal devices;
- a processor configured to determine, according to the first information, whether the first transmission resource is a transmission resource that is selectable by the second terminal device.
- the first information includes mapping information, where the mapping information is used to indicate, in the transmission resource broadcast by the access network device, the first transmission allocated by the access network device to the first terminal device a resource, the first transmission resource being a part of the transmission resource or all transmission resources of the transmission resource; or
- the first information includes a scheduling allocation resource location and data resources occupied by the first transmission resource Source location.
- the receiver is configured to:
- the terminal device further includes a transmitter
- the transmitter is configured to: before the receiving, by the D2D link, the first information used by the first terminal device sent by the first terminal device, send, to the first terminal device, request to establish a connection.
- First request message
- the receiver is configured to: receive, by using a D2D link, a first request response message sent by the first terminal device, where the first request response message carries the first information.
- the receiver is also used to:
- the processor is used to:
- the receiver is further configured to: receive second indication information that is broadcast by the access network device where the terminal device is located, where the second indication information is used to indicate that the terminal device stops sending data to the first terminal device, Or the second indication information is used to indicate that the terminal device controls a maximum amount of data sent to the first terminal device; the data includes that the terminal device passes the first terminal device Data forwarded to the access network device;
- the processor is further configured to: if the second indication information is used to indicate that the terminal device stops sending data to the first terminal device, stopping to the first according to the indication of the second indication information Transmitting, by the terminal device, the data; or, if the second indication information is used to indicate that the terminal device controls the maximum amount of data sent to the first terminal device, according to the maximum data indicated by the second indication information The amount controls the amount of data sent to the first terminal device.
- a second terminal device including:
- a transmitter configured to send the first information used by the terminal device by using a D2D link, where the first information is used to indicate a first transmission resource, where the first transmission resource is a connection where the terminal device is located a resource for transmitting data on a D2D link of the terminal device and other terminal devices allocated by the network device to the terminal device, or the terminal device and other terminals pre-configured by the terminal device A resource that transfers data on the D2D link of the device.
- the first information includes mapping information, where the mapping information is used to indicate, in the transmission resource broadcasted by the access network, the first transmission resource allocated by the access network device to the terminal device.
- the first transmission resource is a part of the transmission resource or all transmission resources of the transmission resource; or
- the first information includes a scheduling allocated resource location and a data resource location occupied by the first transmission resource.
- the transmitter is configured to:
- the transmitter is further configured to:
- the terminal device further includes a receiver;
- the resources for transmitting data on the D2D link of the terminal device and other terminal devices pre-configured for the terminal device are:
- the transmitter is further configured to send the first information to an access network device where the terminal device is located before sending the first information used by the terminal device by using a D2D link, to indicate the connection
- the network access device stops allocating the first transmission resource to other terminal devices in the coverage of the access network device;
- the receiver is configured to: receive information about a second transmission resource sent by the access network device, to determine that the access network device has stopped allocating the second transmission resource to a coverage of the access network device The other terminal device; the second transmission resource is a part of the transmission resource or all the transmission resources included in the first transmission resource.
- the terminal device further includes a receiver
- the receiver is configured to receive, after the sender sends the first information used by the terminal device by using a D2D link, a first request message sent by the second terminal device for requesting to establish a connection;
- the transmitter is configured to: send, by using the D2D link, a first request response message to the second terminal device, where the first request response message carries the first information.
- the first request response message further carries that the terminal device performs by using the first transmission resource Priority information for the business.
- the terminal device further includes a receiver
- the receiver is configured to: receive first indication information that is sent by the access network device where the terminal device is located, where the first indication information is used to indicate that the terminal device stops forwarding data to the access network device, or The first indication information is used to indicate that the terminal device controls a maximum amount of data forwarded to the access network device; the data includes that the other terminal device forwards to the Data of the access network device;
- the processor is further configured to: if the first indication information is used to indicate that the terminal device stops sending data to the access network device, stop the access according to the indication of the first indication information The network device sends data; or, if the first indication information is used to indicate that the terminal device controls the maximum amount of data sent to the access network device, the maximum data indicated by the first indication information The amount controls the amount of data sent to the access network device.
- a first access network device including:
- a processor configured to determine that the amount of data forwarded to the access network device by the first terminal device is greater than or equal to a first threshold
- a transmitter configured to send indication information, where the indication information is used to control an amount of data that is forwarded by the first terminal device to the access network device.
- the transmitter is configured to:
- the first terminal device controls a maximum amount of data forwarded to the access network device; the data includes data that is forwarded by the other terminal device to the access network device by using the first terminal device.
- the transmitter is configured to:
- Sending the second indication information to the terminal device in the coverage of the access network device where the second indication information is used to indicate that the terminal device in the coverage of the access network device stops sending data to the first terminal device Or the second indication information is used to indicate that the terminal device in the coverage of the access network device controls the maximum amount of data sent to the first terminal device; the data includes the coverage of the access network device.
- the terminal device forwards data to the access network device through the first terminal device.
- the access network device further includes receiving Device
- the receiver is configured to: receive first information sent by the first terminal device;
- the first transmission resource includes a terminal-to-terminal D2D chain of the first terminal device and other terminal devices pre-configured for the first terminal device Resources for transmitting data on the road;
- the processor is further configured to: determine to stop allocating the second transmission resource to other terminal devices in the coverage of the access network device; the second transmission resource is a part of the transmission resource included in the first transmission resource or All transmission resources;
- the transmitter is further configured to: send information about the second transmission resource to the first terminal device.
- a third terminal device including:
- a transmitter configured to send, to the access network device where the terminal device is located, a second request message for requesting to establish a connection; the second request message carries a third, indicating that the terminal device is always in a static state Indication information;
- a receiver configured to receive condition information sent by the access network device
- a processor configured to determine, according to the condition information, whether the terminal device has an uplink out-of-synchronization phenomenon.
- the processor is further configured to:
- an uplink synchronization process is initiated to re-connect with the terminal device.
- the network access device performs uplink synchronization.
- the condition information includes a duration threshold or a packet loss threshold;
- the time limit threshold is used to indicate a maximum time offset of the signal received by the terminal device from the access network device in a predetermined time range, where the packet loss threshold is used to indicate that the terminal device sends The maximum number of lost packets to the access network device.
- the processor is configured to:
- the terminal device has an uplink out-of-synchronization phenomenon.
- the processor is configured to:
- the terminal device has an uplink out-of-synchronization phenomenon.
- a second access network device including:
- a receiver configured to receive a second request message sent by the first terminal device for requesting to establish a connection; the second request message carries third indication information that is used to indicate that the first terminal device is always in a static state;
- a transmitter configured to send condition information to the first terminal device, where the condition information is used to determine whether the first terminal device has an uplink out-of-synchronization phenomenon.
- the condition information includes a duration threshold or a packet loss threshold; the duration threshold is used to indicate the first terminal a maximum time offset of the signal received by the device from the access network device in a predetermined time range, where the packet loss threshold is used to indicate that the first terminal device sends the signal to the access network device. The maximum number of lost packets.
- the processor is further configured to:
- the uplink synchronization process initiated by the first terminal device is received to perform uplink synchronization with the first terminal device.
- a fourth terminal device comprising means for performing the method of the first aspect.
- a fifth terminal device comprising a module for performing the method of the second aspect Piece.
- a third access network device comprising means for performing the method of the third aspect.
- a sixth terminal device comprising means for performing the method of the fourth aspect.
- a fourth access network device comprising means for performing the method of the fifth aspect.
- FIG. 1 is a schematic diagram of a possible application scenario according to an embodiment of the present invention
- FIG. 2 is a flowchart of a method for receiving information according to an embodiment of the present invention
- FIG. 3 is a flowchart of a method for sending information according to an embodiment of the present invention.
- FIG. 4 is a flowchart of a data sending indication method according to an embodiment of the present invention.
- FIG. 5 is a flow chart showing the interaction of the RSU allocated transmission resources to the terminal device according to an embodiment of the present invention
- FIG. 9 is a flowchart of a first uplink synchronization method according to an embodiment of the present invention.
- FIG. 10 is a flowchart of a second uplink synchronization method according to an embodiment of the present invention.
- FIG. 11 is an interaction flowchart of an uplink synchronization method according to an embodiment of the present invention.
- FIG. 12 is a structural block diagram of a second terminal device according to an embodiment of the present invention.
- FIG. 13 is a schematic structural diagram of a second terminal device according to an embodiment of the present disclosure.
- FIG. 14 is a structural block diagram of a first terminal device according to an embodiment of the present invention.
- FIG. 15 is a schematic structural diagram of a first terminal device according to an embodiment of the present disclosure.
- FIG. 16 is a structural block diagram of an access network device according to an embodiment of the present invention.
- FIG. 17 is a schematic structural diagram of an access network device according to an embodiment of the present disclosure.
- FIG. 18 is a block diagram showing another structure of a first terminal device according to an embodiment of the present invention.
- FIG. 19 is another schematic structural diagram of a first terminal device according to an embodiment of the present disclosure.
- FIG. 20 is another structural block diagram of an access network device according to an embodiment of the present invention.
- FIG. 21 is another schematic structural diagram of an access network device according to an embodiment of the present invention.
- the techniques described herein may be used in various communication systems, such as LTE systems, fifth generation mobile communication systems (5G), and other such communication systems.
- LTE Long Term Evolution
- 5G fifth generation mobile communication systems
- a terminal device which is a device that provides voice and/or data connectivity to a user, for example, may include a handheld device with wireless connectivity, or a processing device connected to a wireless modem.
- the terminal device can communicate with the core network via a Radio Access Network (RAN) to exchange voice and/or data with the RAN.
- the terminal device may include a vehicle, a UE, a wireless terminal device, a mobile terminal device, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, and a Remote Station.
- Access Point AP
- Remote Terminal Access Terminal, User Terminal, User Agent, or User Device Wait.
- a mobile phone or "cellular" phone
- a computer with a mobile terminal device a dedicated terminal device in NB-IoT, a portable, pocket, handheld, computer built-in or in-vehicle mobile device.
- personal communication services Personal Communication Service, PCS
- PCS Personal Communication Service
- SIP Session Initiation Protocol
- WLL Wireless Local Loop
- PDA Personal Digital Assistant
- RSU is a terminal device fixed at the roadside for forwarding data of the received V2V/Vehicle to Infrastructure (V2I) D2D link of the vehicle terminal to other network devices, such as forwarding To the base station.
- V2I V2V/Vehicle to Infrastructure
- a typical RSU may include, for example, a UE-type RSU (terminal type roadside unit) in an LTE system, a UE-NW relay (terminal-network relay node), a Type I/II relay (type I/II relay station), etc.
- the embodiments of the invention are not limited.
- a network device for example, including an access network device, for example, including a base station (for example, an access point), and specifically may refer to an access network that passes through one or more sectors and wireless terminal devices on an air interface.
- Communication equipment The base station can be used to convert the received air frame to an Internet Protocol (IP) packet as a router between the wireless terminal device and the rest of the access network, wherein the remainder of the access network can include an IP network.
- IP Internet Protocol
- the base station can also coordinate attribute management of the air interface.
- the base station may be an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in an evolved LTE system (LTE-A), which is not limited by the embodiment of the present invention.
- NodeB or eNB or e-NodeB, evolutional Node B in an evolved LTE system (LTE-A), which is not limited by the embodiment of the present invention.
- D2D technology can support direct data communication between terminal equipment and terminal equipment using dedicated air interface technology, which is an end-to-end direct communication technology.
- dedicated air interface technology which is an end-to-end direct communication technology.
- the biggest difference from the traditional cellular communication technology is that with the support of the D2D technology, the terminal device and the terminal device can directly communicate without requiring the relay of the base station, and the base station can perform resource configuration, scheduling, coordination, etc., and the auxiliary terminal. Direct communication between devices.
- the D2D link may also be referred to as a V2I link or a V2V link.
- system and “network” in the embodiments of the present invention may be used interchangeably.
- Multiple means two or more.
- the character "/”, unless otherwise specified, generally indicates that the contextual object is an "or" relationship.
- FIG. 1 is a possible application scenario of an embodiment of the present invention.
- RSU1 is deployed in the system, and RSU1 can communicate with the base station.
- the terminal device 1 and the terminal device 2 can forward data to the base station through the RSU 1, and the terminal device 3 and the terminal device 4 do not forward data to the base station through the RSU 1, but directly communicate with the base station. Then, it can be considered that the terminal device 1 and the terminal device 2 are within the coverage of the RSU1, and the terminal device 3 and the terminal device 4 are outside the coverage of the RSU1. If the RSU1 broadcasts, the terminal device 1 and the terminal device 2 can receive correctly. The terminal device 3 and the terminal device 4 cannot be correctly received.
- each terminal device in FIG. 1 takes a vehicle as an example.
- an information receiving method is provided, and the process of the method is described as follows:
- Step 201 The second terminal device receives the first information used by the first terminal device that is sent by the first terminal device by using the D2D link, where the first information is used to indicate the first transmission resource, where the first transmission resource is
- the first network device where the first terminal device is located is a resource for transmitting data on the D2D link of the first terminal device and the other terminal device, or the first transmission resource is pre-configured by the first terminal device. a resource for transmitting data on a D2D link of a terminal device and other terminal devices;
- Step 202 The second terminal device determines, according to the first information, whether the first transmission resource is an optional transmission resource.
- Step 301 The first terminal device sends the first information used by the first terminal device by using the D2D link, where the first information is used to indicate the first transmission resource, and the first transmission resource is the interface where the first terminal device is located.
- Step 401 The access network device determines the amount of data that is forwarded to the access network device by the first terminal device. Greater than or equal to the first threshold;
- Step 402 The access network device sends indication information, where the indication information is used to control the amount of data that the first terminal device forwards to the access network device.
- the first threshold may be configured by the access network device itself, or may be configured by an Network Management System (OAM).
- OAM Network Management System
- the resource for transmitting data on the D2D link of the first terminal device and the other terminal device may include the first terminal device transmitting data to the other terminal device on the D2D link (such as LTE I2V broadcast or unicast data, or RSU)
- the transmission resource of the forwarded V2V data may further include transmission resources of other terminal devices transmitting data (such as broadcast or unicast data of V2I of LTE or V2V data forwarded to the RSU) to the first terminal device on the D2D link.
- the first terminal device is an RSU as an example.
- the first terminal device is not limited to the RSU, and may be other terminal devices.
- Example 1 the RSU is within the coverage of the access network device, and the access network device schedules resources for the RSU.
- the access network device Take the access network device as a base station as an example.
- the RSU obtains corresponding RSU configuration information from the network device
- the network device may include, for example, a D2D public security function entity (ProSe function), for example, may include a V2I server, and may also be other network devices, for example, the RSU may obtain a D2D link broadcast.
- the transmission resource of the channel where the transmission resource of the D2D link broadcast channel may include, for example, at least one of a frequency location, a time domain location, a resource period, and a frequency hopping mode of the broadcast channel, and the RSU may also obtain the RSU from the network device.
- Identification number ID
- the D2D link broadcast channel may include a D2D link common control channel (SBCCH) of the LTE system, or may also include other broadcast channels, such as a broadcast channel customized by the embodiment of the present invention. For example, it may include an RSU broacast common control channel or the like. See Figure 5 for the steps below.
- SBCCH D2D link common control channel
- the base station can use dedicated signaling to use the first transmission resource used by the RSU (including, for example, V2I).
- Link transmission resources are configured to the RSU.
- a base station may configure a first transmission resource for an RSU by using Radio Resource Control (RRC) signaling. That is, in the first transmission resource, the first transmission resource is a resource on the D2D link of the RSU and other terminal equipment allocated by the base station where the RSU is located, and the first transmission resource is not limited to the first transmission resource.
- RRC Radio Resource Control
- SA Service assignment resource location and data (Data) resource location
- the SA resource may include a period, a frequency location, a time domain location, and a frequency hopping mode of the SA resource
- the Data resource location may include a Data resource. Cycle, frequency position, time domain position, and frequency hopping mode.
- the RSU After obtaining the first transmission resource configured by the base station, the RSU broadcasts the obtained first information on the transmission resource of the D2D link broadcast channel configured for the RSU, so that the terminal device in the coverage of the RSU can receive the first information.
- the first information broadcast by the RSU.
- the first information is used to indicate the first transmission resource. For example, after receiving the first information, the terminal device can know that the transmission resource used by the RSU is the first transmission resource.
- the first information may include an SA resource location and a data resource location occupied by the first transmission resource, and may further include other possible information.
- the base station broadcasts information of one or more common transmission resources in advance, and the information of the common transmission resource broadcasted by the base station includes information about the transmission resource allocated by the base station to the RSU, that is, the first Information
- the first information broadcast by the RSU may also include mapping information, for example, may be a mapping table, which may indicate which common transmission resources are the base station allocation among the information of the common transmission resources broadcast by the base station.
- mapping information for example, may be a mapping table, which may indicate which common transmission resources are the base station allocation among the information of the common transmission resources broadcast by the base station.
- the first transmission resource to the RSU may be a mapping table, which may indicate which common transmission resources are the base station allocation among the information of the common transmission resources broadcast by the base station.
- the information of the common transmission resource broadcasted by the base station includes the information of the common transmission resource 1, the information of the common transmission resource 2, and the information of the common transmission resource 3, and the first transmission resource allocated by the base station to the RSU is the common transmission resource 3 therein.
- the RSU may broadcast mapping information, which is used to indicate the common transmission resource 3. After the other terminal device receives the information of the common transmission resource broadcasted by the base station and the mapping information of the RSU broadcast, the RSU may know that the transmission resource used by the RSU is a common transmission resource. 3.
- the RSU may broadcast the type of service transmitted by the RSU through the first transmission resource.
- the RSU may broadcast priority information of the service performed by the RSU through the first transmission resource.
- the transmission resource sends D2D data (for example, the data is not transmitted using the Transmission Time Interval (TTI) corresponding to the first transmission resource) to ensure the priority of the RSU transmission, and collisions with the RSU are avoided as much as possible.
- the second terminal device in FIG. 5 is any one of the terminal devices in the coverage area of the RSU.
- the terminal device that receives the mapping information no longer uses all the transmission resources indicated by the mapping information in all common transmission resources acquired from the base station.
- the terminal device in the coverage of the RSU may further receive the priority of the service performed by the RSU by using the first transmission resource.
- Level information For example, any one of the terminal devices in the coverage of the RSU receives the priority information of the service performed by the RSU through the first transmission resource, and the terminal device is also configured to use part or all of the first transmission resource on the D2D link.
- the terminal device may compare the priority of the service performed by the terminal device on the D2D link with the priority of the service performed by the RSU through the first transmission resource to determine the first transmission.
- the terminal device can determine whether the first priority can be used according to the priority of the service performed by the terminal device on the D2D link and the priority of the service performed by the RSU through the first transmission resource.
- the transmission resource sends data to ensure the normal operation of the higher priority service in the terminal device and the RSU.
- the terminal device can determine whether to preempt the transmission resource with the RSU according to the priority, and can ensure that the high priority service is transmitted normally.
- the base station may send indication information to indicate that the RSU controls the amount of data sent to the base station.
- the indication information may include the first indication information and/or the second indication information. For details, refer to step 4 below, that is, if this occurs, the execution may be performed. Step 4 in Figure 5.
- the base station determines that the data amount of the data forwarded through the RSU is greater than or equal to the first threshold.
- the first threshold may be specified by the protocol, or may also be set by the system, such as may be performed by the base station.
- the self-setting, etc. may cause the base station to broadcast or unicast the corresponding indication information to one or more RSUs in the coverage of the base station.
- the indication information at this time may include the first Instructing information) to inform the RSUs that the data is no longer forwarded to the base station, or to inform the RSUs of the maximum amount of data forwarded to the base station, that is, to inform the RSU that the amount of data forwarded to the base station cannot exceed the maximum amount of data, so that the RSU can be controlled.
- the amount of data forwarded to the base station may be controlled.
- the first indication information may occupy 1 bit, indicating whether the RSU can continue to forward data to the base station, or the first indication information may also carry a maximum amount of data, where the maximum data volume may be forwarded by the RSU to the base station. The upper limit of the amount of data, and so on.
- step 4 can also be as follows:
- the base station determines that the data amount of the data forwarded through the RSU is greater than or equal to the first threshold.
- the first threshold may be specified by the protocol, or may also be set by the system, such as may be performed by the base station.
- the base station may broadcast the corresponding indication information (for example, the indication information at this time may include the second indication information), or the base station may also reach the terminal within the coverage of the base station.
- the device unicasts the second indication information to inform the terminal devices that the data is no longer forwarded to the RSU, or can notify the terminal devices to forward the maximum amount of data to the RSU, that is, inform the terminal devices that the amount of data forwarded to the RSU cannot exceed the maximum.
- the amount of data so that the amount of data that the RSU forwards to the base station can be controlled, thereby reducing the amount of data received by the base station.
- the second indication information may occupy 1 bit, indicating whether the terminal device can continue to forward data to the RSU, or the second indication information may also carry a maximum amount of data, where the maximum amount of data may be the amount of data that the terminal device can forward to the RSU.
- the upper limit is such that the terminal device within the coverage of the base station no longer forwards data to the RSU or controls the amount of data forwarded to the RSU, so that the amount of data that the RSU forwards to the base station can be reduced.
- Example 1 the RSU broadcasts the information of the transmission resource used by itself (ie, the first information), which is required. A resource that occupies a certain D2D link broadcast channel. If there is no terminal device in the coverage of the RSU, the RSU broadcasts as usual, which wastes broadcast resources. In view of this, by providing Example 2, broadcast signaling overhead can be saved.
- Example 2 the RSU is also within the coverage of the access network device, and the access network device schedules resources for the RSU.
- the access network device Take the access network device as a base station as an example.
- Example 2 for example, there is no terminal device in the coverage of the RSU at first, and the RSU may not broadcast the first information allocated by the base station for the RSU, so the RSU may not acquire the resources of the broadcast channel of the D2D link from the network device.
- the resource of the broadcast channel of the D2D link can also be obtained from the network device. For the manner of obtaining, refer to the description in Example 1.
- Step 1 of Example 2 can refer to Example 1.
- the different steps in Example 2 are described below.
- a terminal device After entering the coverage of the RSU, a terminal device sends a request message for requesting to establish a connection to the RSU, for example, the terminal device is referred to as a second terminal device, and the message requesting the connection is referred to as a first request message. .
- the RSU sends a first request response message for the first request message to the second terminal device to establish a connection with the second terminal device.
- the RSU may carry the first information in the first request response message, or the RSU may carry the first information in other possible dedicated signaling and send the information to the second terminal device.
- the base station broadcasts information of one or more common transmission resources in advance, and the information of the common transmission resource broadcasted by the base station includes information about the transmission resource allocated by the base station to the RSU, that is, the first Information
- the first information carried by the first request response message sent by the RSU may also include mapping information, for example, the mapping information may include a mapping table, which may indicate information of a common transmission resource broadcast by the base station. Which common transmission resources are the first transmission resources allocated by the base station to the RSU.
- the RSU may send the first type of information to the second terminal device, and may send, to the second terminal device, a service type that is transmitted by the RSU by using the first transmission resource, for example, may include a V2I service type.
- the RSU may carry the first information and the type of service transmitted by the RSU through the first transmission resource. The same signaling is sent to the terminal device, or the RSU may also carry the first information and the service type transmitted by the RSU through the first transmission resource in different signaling and send the information to the terminal device.
- the RSU may further send, to the terminal device, priority information of the service performed by the RSU through the first transmission resource.
- the RSU may carry the first information, the service type transmitted by the RSU through the first transmission resource, and the priority information of the service performed by the RSU through the first transmission resource in the same signaling to be sent to the terminal device, or the RSU
- the first information, the service type transmitted by the RSU through the first transmission resource, and the priority information of the service performed by the RSU through the first transmission resource may be carried in different signaling and sent to the terminal device, or the RSU may also
- the first information, the service type transmitted by the RSU through the first transmission resource, and any two types of information of the priority information of the service performed by the RSU through the first transmission resource may be carried in a signaling and sent to the terminal device. .
- the RSU can use the dedicated signaling to inform the terminal device that the connection is established with the RSU, reducing the overhead of unnecessary broadcast resources.
- the second terminal device After the second terminal device receives the first information sent by the RSU, if the priority information of the service performed by the RSU through the first transmission resource is not received, the second terminal device does not use the first transmission resource to send data.
- the first transmission resource is no longer used to receive data to ensure the priority of the RSU transmission, and collisions with the RSU are avoided as much as possible.
- the first information sent by the RSU is mapping information
- the second terminal device that receives the mapping information no longer uses all the transmission resources indicated by the mapping information in all common transmission resources acquired from the base station.
- the second terminal device may further receive the priority information of the service performed by the RSU by using the first transmission resource.
- the second terminal device receives the priority information of the service performed by the RSU through the first transmission resource, and the second terminal device may according to the priority of the service performed by the second terminal device on the D2D link.
- the priority of the service performed by the RSU through the first transmission resource determines whether the first transmission resource is preempted. For the part, refer to the description of step 3 in the first embodiment.
- step 5 in Figure 6 can be performed.
- Step 5 in Figure 6 can also be implemented in two ways. Reference can be made to step 4 in Example 1.
- the RSU is in the coverage of the access network device, but the RSU can independently select the resource, that is, the RSU can independently select the first transmission resource, and the access network device does not need to allocate resources for the RSU, and the RSU allocates the self.
- the first transmission resource may include resources for the RSU to pre-configure the RSU to transmit data to the D2D link of other terminal devices.
- the first transmission resource includes an SA resource and a data resource location that are not limited to the first transmission resource, where the SA resource may include a period, a frequency location, a time domain location, and a frequency hopping mode of the SA resource, where the Data resource location may include The period, frequency position, time domain position, and frequency hopping mode of the Data resource.
- the RSU can include street traffic lights, and so on. Take the access network device as a base station as an example. See Figure 7 below.
- the RSU broadcasts the first information through the transmission resource of the D2D link broadcast channel, so that the terminal device in the coverage of the RSU can receive the first information broadcast by the RSU.
- the first information is used to indicate the first transmission resource. For example, after receiving the first information, the terminal device can know that the transmission resource used by the RSU is the first transmission resource.
- the first transmission resource may be a transmission resource selected by the RSU from among the transmission resources configured by the system for the RSU.
- the manner in which the RSU obtains the transmission resource of the broadcast channel may be referred to step 1 in the first example, or the RSU may obtain the transmission resource of the broadcast channel by using other methods.
- the RSU may broadcast the type of service transmitted by the RSU through the first transmission resource.
- the RSU may broadcast priority information of the service performed by the RSU through the first transmission resource.
- the second terminal device in FIG. 7 is any one of the terminal devices in the coverage area of the RSU.
- the RSU may send the first information to the base station accessed by the RSU to indicate that the base station stops.
- the first transmission resource is allocated to the terminal device within the coverage of the base station.
- the base station may reply the information of the second transmission resource to the RSU, to indicate that the base station stops allocating the second transmission resource to other terminal devices.
- the second transmission resource is all transmission resources or partial transmission resources included in the first transmission resource, that is, the second transmission resource may be a subset of the first transmission resource.
- the information about the second transmission resource may indicate the time domain information that the RSU can use, similar to the gap information in the LTE system.
- the information of the second transmission resource may include 1 bit, to indicate whether the RSU is The first transmission resource can be used to transmit data on the D2D link.
- the first information sent by the RSU to the base station includes information of the transmission resource 1, information of the transmission resource 2, and information of the transmission resource 3 to inform the base station that the RSU is to use the transmission resources, and the base station should stop allocating the transmission resources to other resources. Terminal equipment to avoid collisions.
- the base station may perform a determination to determine which of the transmission resources are not allocated to other terminal devices, and then send the determination result to the RSU, and determine the result. It includes information on the second transmission resource.
- the base station determines that the transmission resource 1 and the transmission resource 2 are not allocated to other terminal devices, but the transmission resource 3 may still be allocated to other terminal devices, and the base station may transmit the information of the transmission resource 1 and the information of the transmission resource 2 to the RSU.
- the RSU After receiving the information of the transmission resource 1 and the information of the transmission resource 2, the RSU can know that the base station may also allocate the transmission resource 3 to other terminal devices.
- the RSU can use the transmission resource 3 as little as possible in the future to avoid collisions.
- the information of the second transmission resource that the base station sends to the RSU may include the information of the transmission resource 1 and the transmission resource 2
- the information and the information of the transmission resource 3 may also include 1 bit. After receiving the 1 bit, the RSU can know that all the transmission resource base stations that the RSU is ready to use are not allocated to other terminal devices.
- step 5 in Figure 7 can be performed.
- Step 5 in Figure 7 can also be implemented in two ways. Reference can be made to step 4 in Example 1.
- the RSU broadcasts the information of the transmission resource used by itself (ie, the first information), and needs to occupy a certain broadcast channel resource of the D2D link. If there is no terminal device in the coverage of the RSU, the RSU broadcasts as usual, which wastes broadcast resources. In view of this, by providing Example 4, broadcast resources can be saved.
- the RSU may be in the coverage of the access network device, but the RSU may independently schedule resources by itself, that is, independently scheduling the first transmission resource, without the access network device scheduling resources for the RSU, RSU itself
- the scheduled first transmission resource may be a resource for the RSU to pre-configure the RSU to transmit data to the D2D link of other terminal devices.
- the first transmission resource includes an SA resource and a data resource location that are not limited to the first transmission resource, where the SA resource may include a period, a frequency location, a time domain location, and a frequency hopping mode of the SA resource, where the Data resource location may include The period, frequency position, time domain position, and frequency hopping mode of the Data resource.
- the RSU can include street traffic lights, and so on. Take the access network device as a base station as an example.
- Example 2 for example, there is no terminal device in the coverage of the RSU at first, and the RSU may not broadcast the first information scheduled by the RSU, so the RSU may not acquire the resources of the D2D link broadcast channel from the network device.
- the RSU may not acquire the resources of the D2D link broadcast channel from the network device.
- the resources of the D2D link broadcast channel can also be obtained from the network device.
- See Figure 8 for the steps below.
- Steps 1, 2, and 3 of FIG. 8 may refer to steps 2, 3, and 4 of Example 2, respectively, and steps 4, 5, and 6 of FIG. 8 may refer to steps 3, 4, and 5 of Example 3, respectively.
- the RSU is usually a stationary terminal device deployed on the road, and its uplink timing generally does not change.
- the base station still needs to continuously send uplink timing information for the RSU, which causes unnecessary signaling overhead.
- a first uplink synchronization method is provided, and the process of the method is described as follows:
- Step 901 The first terminal device sends a second request message for requesting to establish a connection to the access network device where the first terminal device is located, where the second request message carries a message indicating that the first terminal device is always in a static state.
- Third indication information
- Step 902 The first terminal device receives condition information sent by the access network device.
- Step 903 The first terminal device determines, according to the condition information, whether the first terminal device has an uplink out-of-synchronization phenomenon.
- a second uplink synchronization method is provided, and the process of the method is described as follows:
- Step 1001 The access network device receives a second request message that is sent by the first terminal device and is used to request to establish a connection.
- the second request message carries third indication information that is used to indicate that the first terminal device is always in a static state.
- Step 1002 The access network device sends condition information to the first terminal device.
- the condition information is used to determine whether the first terminal device has an uplink out-of-synchronization phenomenon.
- the access network device may send condition information to the first terminal device, so that the first terminal device may determine whether the first terminal device has an uplink out-of-synchronization phenomenon, for example, if an uplink out-of-synchronization phenomenon occurs, the first terminal device The device can perform uplink synchronization with the access network device in time, so that, in the case of saving signaling overhead, uplink synchronization between the first terminal device and the access network device can be ensured as much as possible to avoid the first terminal device. The communication process with the access network device is affected.
- the access network device is a base station and the first terminal device is an RSU is not limited thereto. See Figure 11.
- the RSU initiates a connection request to the base station, for example, the RSU sends a second request message for requesting to establish a connection to the base station.
- the second request message may carry indication information indicating that the RSU is to be in a static state, for example, the indication information is referred to as third indication information, for example, the third indication information may occupy 1 bit, indicating that the RSU does not move. .
- the RSU may also use a special connection request cell when transmitting the second request message to inform the base station in this way that the RSU does not move.
- the base station sends condition information to the RSU according to the second request message sent by the RSU, and the condition information can be used to determine whether the uplink out-of-synchronization phenomenon occurs in the RSU.
- condition information may include a threshold value, and the RSU may judge based on the threshold value.
- the condition information may include different threshold values.
- the condition information may include a packet loss threshold value and/or a duration threshold, which is exemplified below.
- the condition information may include a packet loss threshold, where the packet loss threshold may be used to indicate the maximum allowed packet loss sent by the RSU to the base station, for example, if the RSU determines the number of lost packets sent to the base station. If the threshold is greater than or equal to the number of lost packets, the RSU may determine that the RSU has an uplink out-of-synchronization phenomenon.
- the number of consecutive packet loss of the RSU may be calculated, or the number of lost packets of the RSU in a certain period of time may also be calculated.
- a possible continuous packet loss threshold may be 3, if the RSU determines 8 consecutive Hybrid Automatic Repeat reQuest (HARQ) retransmissions of 3 consecutive packets sent to the base station. If it fails, the RSU determines that the RSU has an upstream out-of-synchronization phenomenon.
- HARQ Hybrid Automatic Repeat reQuest
- the condition information may include a duration threshold, where the duration threshold may be used to indicate a maximum time offset of the signal received by the RSU from the base station within a predetermined time range, if the RSU determines that the received signal from the base station is If the time offset within the predetermined time range is greater than or equal to the time threshold, the RSU determines that the RSU has an uplink out-of-synchronization phenomenon.
- the predetermined time range may be specified by the protocol, or may be set by the device itself, for example, may be set by the RSU, or may be set by the base station in advance for the RSU, and the like.
- the time offset refers to the deviation between the measurement time of the Global Navigation Satellite System and the measured downlink synchronization of the base station.
- the RSU determines that uplink out-of-synchronization has occurred.
- the RSU can make decisions based on different thresholds. For example, if the condition information includes the number of lost packets and the duration threshold, the RSU may determine the threshold according to the number of lost packets and the duration threshold according to the foregoing method, and the RSU may be in any one of the conditions included in the condition information.
- the decision of the limit is in line with the uplink out-of-synchronization situation, it is determined that the RSU has an uplink out-of-synchronization phenomenon, so that the RSU can select a better decision threshold value for the decision to facilitate the operation of the RSU, or the RSU can also include all of the condition information.
- the threshold value is judged to be in line with the uplink out-of-synchronization situation, it is determined that the RSU has an uplink out-of-synchronization phenomenon, and such a judgment method is more accurate.
- condition information may further include period information, where the period information may be used to indicate how long the RSU determines whether an uplink out-of-synchronization occurs.
- condition information may further include different information, and is not limited to the above example, as long as the condition information can be used to determine whether the uplink out-of-synchronization phenomenon occurs in the RSU.
- the RSU may determine, according to the content included in the condition information, whether the uplink out-of-synchronization phenomenon occurs. The RSU may not need to re-receive the condition information every time the judgment is performed. For example, after determining the location of the RSU, the RSU may send a second request message to the base station, and then the base station may send the condition information to the RSU, and then, if the RSU If the location does not change, the RSU may not send the second request message to the base station again, and the base station will not send the condition information to the RSU again, or for example, after the base station sends the condition information to the RSU, if the condition information does not occur.
- the base station may not send the condition information to the RSU again, and the RSU may use the previously received condition information to make a decision each time the decision is made. If the uplink out-of-synchronization phenomenon does not occur, the judgment can be continued. If the uplink out-of-synchronization phenomenon occurs, the following step 4 can be performed.
- the RSU may periodically perform the determination, for example, periodically according to the period information carried by the condition information, or the RSU may also perform the judgment in real time, and the like.
- the uplink synchronization process may be initiated to regain the uplink synchronization (for example, the Timing Advance (TA) may be regained), that is, the uplink synchronization is re-established with the base station.
- TA Timing Advance
- the RSU may initiate a random access procedure to regain uplink synchronization.
- the uplink synchronization process is not limited to the random access process, and the process of performing the uplink synchronization is within the protection scope of the embodiment of the present invention.
- a first type of terminal device which may include a receiving unit 1201 and a determining unit 1202.
- the terminal device may further include a sending unit 1203, which is shown together in FIG.
- the terminal device may be used to perform the method described in the foregoing FIG. 2 to FIG. 8.
- the terminal device may be the second terminal device as described above, and therefore, functions and functions implemented by the units in the terminal device, etc. Please refer to the description of the previous method section for details.
- FIG. 13 is a schematic diagram of a possible physical structure of the terminal device shown in FIG.
- the physical device corresponding to the receiving unit 1201 may be the receiver 1301
- the physical device corresponding to the determining unit 1202 may be the processor 1302
- the physical device corresponding to the sending unit 1203 may be the transmitter 1303.
- the processor 1302 may include, for example, a central processing unit (CPU) or an application specific integrated circuit (ASIC), which may be one or more integrated circuits for controlling program execution, and may be a field programmable gate.
- the hardware circuit developed by the Field Programmable Gate Array (FPGA) may be a baseband chip.
- the receiver 1301 is configured to perform network communication with an external device, for example, can communicate with an external device through a network such as an Ethernet, a wireless access network, or a wireless local area network.
- a network such as an Ethernet, a wireless access network, or a wireless local area network.
- the transmitter 1303 is configured to perform network communication with an external device, for example, may communicate with an external device through a network such as an Ethernet, a wireless access network, or a wireless local area network.
- a network such as an Ethernet, a wireless access network, or a wireless local area network.
- the receiver 1301 and the transmitter 1303 may be connected to the processor 1302 via the bus 1304, or the receiver 1301 and the transmitter 1303 may be respectively connected to the processor 1302 through a dedicated connection line.
- FIG. 13 is an example in which the receiver 1301 and the transmitter 1303 are both connected to the processor 1302 via the bus 1304.
- the processor 1302 By designing the processor 1302, the code corresponding to the method shown above is solidified into the chip, so that the chip can perform the method shown in FIG. 2 to FIG. 8 during operation. How to The processor 1302 performs design programming and is well known to those skilled in the art, and details are not described herein again.
- a second terminal device is provided, and the terminal device may include a transmitting unit 1401.
- the terminal device may further include a receiving unit 1402 and a control unit 1403, both of which are shown in FIG. 14.
- the terminal device may be configured to perform the method described in the foregoing FIG. 2 to FIG. 8.
- the terminal device may be the first terminal device as described above, and therefore, for functions and the like implemented by each unit in the terminal device, Please refer to the description of the previous method section for details.
- FIG. 15 is a schematic diagram of a possible physical structure of the terminal device shown in FIG. 14 .
- the physical device corresponding to the sending unit 1401 may be the transmitter 1501
- the physical device corresponding to the receiving unit 1402 may be the receiver 1502
- the physical device corresponding to the control unit 1403 may be the processor 1503.
- the processor 1503 may include, for example, a CPU or an ASIC, and may be one or more integrated circuits for controlling program execution, may be hardware circuits developed using an FPGA, and may be a baseband chip.
- the transmitter 1501 is configured to perform network communication with an external device, for example, can communicate with an external device through a network such as an Ethernet, a wireless access network, or a wireless local area network.
- the receiver 1502 is configured to perform network communication with an external device, for example, by using a network such as an Ethernet, a wireless access network, or a wireless local area network to communicate with an external device.
- a network such as an Ethernet, a wireless access network, or a wireless local area network to communicate with an external device.
- the transmitter 1501 and the receiver 1502 may be connected to the processor 1503 via the bus 1504, or the transmitter 1501 and the receiver 1502 may be respectively connected to the processor 1503 through a dedicated connection line.
- FIG. 15 is an example in which the transmitter 1501 and the receiver 1502 are connected to the processor 1503 via the bus 1504.
- a first access network device is provided, and the access network device may include a transmitting unit 1601 and a determining unit 1602.
- the access network device may also include The receiving unit 1603 is shown in FIG.
- the access network device may be configured to perform the method described in the foregoing FIG. 2 to FIG. 8.
- the access network device may be an access network device as described above, and therefore, for each unit in the access network device
- FIG. 17 is a schematic diagram of a possible physical structure of the access network device shown in FIG. 16.
- the physical device corresponding to the sending unit 1601 may be the transmitter 1701
- the physical device corresponding to the determining unit 1602 may be the processor 1702
- the physical device corresponding to the receiving unit 1603 may be the receiver 1703.
- the processor 1702 may include, for example, a CPU or an ASIC, and may be one or more integrated circuits for controlling program execution, may be hardware circuits developed using an FPGA, and may be a baseband chip.
- the transmitter 1701 is configured to perform network communication with an external device, for example, may communicate with an external device through a network such as an Ethernet, a wireless access network, or a wireless local area network.
- a network such as an Ethernet, a wireless access network, or a wireless local area network.
- the receiver 1703 is configured to perform network communication with an external device, for example, by using a network such as an Ethernet, a wireless access network, or a wireless local area network to communicate with an external device.
- a network such as an Ethernet, a wireless access network, or a wireless local area network to communicate with an external device.
- transmitters 1701 and receivers 1703 may be coupled to the processor 1702 via a bus 1704, or the transmitters 1701 and 1703 may be coupled to the processor 1702 via dedicated connection lines, respectively.
- FIG. 17 is an example in which the transmitter 1701 and the receiver 1703 are connected to the processor 1702 via the bus 1704.
- the processor 1702 By designing the processor 1702, the code corresponding to the method shown above is solidified into the chip, so that the chip can perform the method shown in FIGS. 2-8 described above during operation. How to design and program the processor 1702 is a technique well known to those skilled in the art, and details are not described herein again.
- a third terminal device which may include a transmitting unit 1801, a receiving unit 1802, and a decision unit 1803.
- the terminal device may further include a first operating unit 1804.
- the terminal device may further include a first determining unit 1805 and a second determining unit 1806. The foregoing units are all shown in FIG. 18.
- the terminal device can be used to perform the method described in the foregoing FIG. 9 to FIG. 11, for example, the terminal device can
- the first terminal device is as described above. Therefore, for the functions and the like implemented by the units in the terminal device, reference may be made to the description of the previous method portion, and details are not described herein.
- the physical device corresponding to the sending unit 1801 may be the transmitter 1901
- the physical device corresponding to the receiving unit 1802 may be the receiver 1902
- the physical devices corresponding to unit 1806 may each be processor 1903.
- the transmitter 1901 is configured to perform network communication with an external device, for example, can communicate with an external device through a network such as an Ethernet, a wireless access network, or a wireless local area network.
- a network such as an Ethernet, a wireless access network, or a wireless local area network.
- the receiver 1902 is configured to perform network communication with an external device, for example, can communicate with an external device through a network such as an Ethernet, a wireless access network, or a wireless local area network.
- a network such as an Ethernet, a wireless access network, or a wireless local area network.
- the processor 1903, the processor 1903 may include, for example, a CPU or an ASIC, and may be one or more integrated circuits for controlling program execution, may be hardware circuits developed using an FPGA, and may be a baseband chip.
- transmitters 1901 and receivers 1902 may be coupled to the processor 1903 via a bus 1904, or the transmitter 1901 and the receiver 1902 may be coupled to the processor 1903 via dedicated connection lines, respectively.
- FIG. 19 is an example in which the transmitter 1901 and the receiver 1902 are connected to the processor 1903 via the bus 1904.
- the code corresponding to the method shown above is solidified into the chip, so that the chip can perform the method shown in the foregoing FIGS. 9-11 during operation.
- How to design and program the processor 1903 is a technique well known to those skilled in the art, and details are not described herein again.
- a second access network device which may include a receiving unit 2001 and a transmitting unit 2002.
- the access network device may further include a second operating unit 2003, both shown in FIG.
- the access network device may be configured to perform the method described in the foregoing FIG. 9 to FIG. 11.
- the access network device may be an access network device as described above, and therefore, for each unit in the access network device
- the physical device corresponding to the receiving unit 2001 may be the receiver 2102
- the physical device corresponding to the sending unit 2002 may be the transmitter 2101
- the physical device corresponding to the second operating unit 2003 may be the processor 2103.
- the transmitter 2101 is configured to perform network communication with an external device, for example, can communicate with an external device through a network such as an Ethernet, a wireless access network, or a wireless local area network.
- a network such as an Ethernet, a wireless access network, or a wireless local area network.
- the receiver 2102 is configured to perform network communication with an external device, for example, can communicate with an external device through a network such as an Ethernet, a wireless access network, or a wireless local area network.
- a network such as an Ethernet, a wireless access network, or a wireless local area network.
- the processor 2103 may include a CPU or an ASIC, may be one or more integrated circuits for controlling program execution, may be hardware circuits developed using an FPGA, and may be a baseband chip.
- transmitters 2101 and receivers 2102 can be connected to the processor 2103 via the bus 2104, or the transmitter 2101 and the receiver 2102 can also be connected to the processor 2103 via dedicated connection lines, respectively.
- FIG. 21 is an example in which the transmitter 2101 and the receiver 2102 are connected to the processor 2103 via the bus 2104.
- the code corresponding to the method shown above is solidified into the chip, so that the chip can perform the method shown in FIGS. 9-11 described above during operation.
- How to design and program the processor 2103 is a technique well known to those skilled in the art, and details are not described herein again.
- the first terminal device may send information about the transmission resource used by the first terminal device (for example, the transmission resource used by the first terminal device is referred to as the first transmission resource), so that the other information is received.
- the terminal device may no longer use the first transmission resource, thereby avoiding collisions.
- the first terminal device sends the first information, and the coverage of the first terminal device is generally smaller than the coverage of the base station, and even if the first terminal device broadcasts the first information, the terminal device that receives the first information
- the number is generally smaller than the number of terminal devices broadcast by the receiving base station, and the terminal device that does not receive the first information sent by the first terminal device can continue to use the first transmission resource, thereby improving the utilization rate of the first transmission resource. Reduce waste of resources.
- the coverage of the first terminal device is greater than the communication range of the first terminal device, only the terminal device located outside the communication range of the first terminal device may not receive the first information, that is, the portion.
- the terminal device can use the first transmission resource, and at this time, it does not transmit with the first terminal device.
- the collision produces a collision. That is, by adopting the technical solution provided by the embodiment of the present invention, the utilization of resources is improved in the case of avoiding collision.
- the disclosed apparatus and method can be implemented in other ways.
- the device embodiments described above are merely illustrative.
- the division of the unit or unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to implement the embodiments of the present invention.
- the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may also be an independent physical module.
- the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
- all or part of the technical solution of the present invention may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a computer device (which may be a personal computer, A server, or network device, or the like, or a processor, performs all or part of the steps of the methods described in various embodiments of the present invention.
- the foregoing storage medium includes: a universal serial bus flash drive, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, and the like, which can store program codes.
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Abstract
一种信息发送、接收、上行同步、数据发送指示方法及设备,用以解决基站在为RSU分配传输资源时造成传输资源浪费的技术问题。该信息接收方法包括:第二终端设备通过终端到终端D2D链路接收第一终端设备发送的所述第一终端设备所使用的第一信息;其中,所述第一传输资源为所述第一终端设备所在的接入网设备为所述第一终端设备分配的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源,或所述第一传输资源为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源;所述第二终端设备根据所述第一信息确定所述第一传输资源是否为所述第二终端设备可选用的传输资源。
Description
本发明涉及移动通信技术领域,尤其涉及一种信息发送、接收、上行同步、数据发送指示方法及设备。
用户设备(User Equipment,UE)在车辆到车辆(Vehicle to Vehicle,V2V)链路不好时,比如在UE处于街角的情况下,可以通过预先安装在街角的路边单元(Roadside Unit,RSU)接收UE通过终端到终端(Device to Device,D2D)方式发送的车联网数据,并将接收的数据转发给基站等网络设备。在这种传输方式下,UE不需要与基站建立直接的连接就可以将数据传输给基站,降低了基站维护UE连接的开销。比如,一个小区(cell)内有100个车辆,在该小区内部署了4个RSU,此时基站只需要与这4个RSU建立连接,并维护与这4个RSU的连接信息,其余车辆只需要和这些RSU进行通信,即可通过这4个RSU向基站转发数据。
另外,RSU还可以通过D2D链路广播发布一些比较重要的业务信息,例如可以通过RSU发送一些交通广播相关的信息,比如广播交通灯信息或限速牌信息等等,所有在该RSU覆盖范围内的车辆都可以接收RSU发送的交通信息。
可见,RSU所使用的传输资源的优先级一般来说高于车辆和车辆在D2D链路上发送的车辆状态信息,因此,基站在为一个RSU分配传输资源后,一般会通过广播的方式将分配给该RSU的传输资源进行广播,这样,基站覆盖范围内的其他UE接收广播后,就不会再使用这些传输资源,以避免与RSU发送的数据产生碰撞。但目前这种方式虽然可以避免碰撞,却也造成了传输资源的浪费。
发明内容
本申请提供一种信息发送、接收、上行同步、数据发送指示方法及设备,用以解决基站在为RSU分配传输资源时造成传输资源浪费的技术问题。
第一方面,提供一种信息接收方法,包括:
第二终端设备通过D2D链路接收第一终端设备发送的第一信息;其中,所述第一信息用于指示第一传输资源,所述第一传输资源为所述第一终端设备所在的接入网设备为所述第一终端设备分配的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源,或所述第一传输资源为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源;
所述第二终端设备根据所述第一信息确定所述第一传输资源是否为所述第二终端设备可选用的传输资源。
第一终端设备可以发送该第一终端设备所使用的传输资源(例如将第一终端设备使用的传输资源称为第一传输资源)的信息,这样收到该信息的其他终端设备可能就不会再使用第一传输资源,从而避免了碰撞情况的发生。而且,是由第一终端设备来发送第一信息,第一终端设备的覆盖范围一般来说比基站的覆盖范围小,即使第一终端设备广播第一信息,则接收第一信息的终端设备的数量一般来说也比接收基站广播的终端设备的数量少,则未接收到第一终端设备发送的第一信息的终端设备可以继续使用第一传输资源,尽量提高第一传输资源的利用率,减少资源浪费。并且,若第一终端设备发送第一信息的覆盖范围大于第一终端设备的通信范围,则只有位于第一终端设备的通信范围之外的终端设备才可能收不到第一信息,即这部分终端设备才能够使用第一传输资源,此时也不会与第一终端设备的传输产生碰撞。即,通过采用本申请的技术方案,在避免碰撞的情况下提高了资源的利用率。
结合第一方面,在第一方面的第一种可能的实现方式中,
所述第一信息包括映射信息,所述映射信息用于指示:在所述接入网设备广播的传输资源中,所述接入网设备为所述第一终端设备分配的所述第一
传输资源,所述第一传输资源为所述传输资源中的部分传输资源或者全部传输资源;或
所述第一信息包括所述第一传输资源占用的调度分配资源位置和数据资源位置。
第一信息可以包括不同的信息,从而可以通过不同的方式来指示第一传输资源,较为灵活。
结合第一方面或第一方面的第一种可能的实现方式,在第一方面的第二种可能的实现方式中,第二终端设备通过D2D链路接收第一终端设备发送的所述第一终端设备所使用的第一信息,包括:
所述第二终端设备通过所述D2D链路接收所述第一终端设备广播的所述第一信息。
第一终端设备可以通过广播发送第一信息,可能只需发送一次就可以使得多个第二终端设备接收第一信息,较为节省传输资源。
结合第一方面或第一方面的第一种可能的实现方式,在第一方面的第三种可能的实现方式中,
在第二终端设备通过D2D链路接收第一终端设备发送的所述第一终端设备使用的所述第一信息之前,还包括:
所述第二终端设备向所述第一终端设备发送用于请求建立连接的第一请求消息;
第二终端设备通过D2D链路接收第一终端设备发送的所述第一终端设备所使用的第一信息,包括:
所述第二终端设备通过D2D链路接收所述第一终端设备发送的第一请求响应消息,所述第一请求响应消息携带所述第一信息。
第一终端设备可以在有第二终端设备发送第一请求消息时再向该第二终端设备发送第一信息,从而,如果第一终端设备覆盖的范围内没有第二终端设备存在时第一终端设备可以无需发送第一信息,节省传输资源,而有第二终端设备向第一终端设备发送第一请求消息时第一终端设备可以发送第一信
息,使得第二终端设备可以获取第一信息。
结合第一方面或第一方面的第一种可能的实现方式至第三种可能的实现方式中的任一种可能的实现方式,在第一方面的第四种可能的实现方式中,所述方法还包括:
所述第二终端设备还通过所述D2D链路接收所述第一终端设备发送的所述第一终端设备通过所述第一传输资源所进行的业务的优先级信息。
结合第一方面的第四种可能的实现方式,在第一方面的第五种可能的实现方式中,所述第二终端设备根据所述第一信息确定所述第一传输资源是否为可选用的传输资源,包括:
所述第二终端设备根据所述第一终端设备通过所述第一传输资源所进行的业务的优先级信息以及所述第二终端设备所进行的业务的优先级信息,确定所述第一传输资源是否为可选用的传输资源。
第一终端设备除了可以发送第一信息之外,还可以发送第一终端设备通过第一传输资源所进行的业务的优先级信息,这样,第二终端设备可以根据第一终端设备通过第一传输资源所进行的业务的优先级信息以及第二终端设备所进行的业务的优先级信息来确定是否选用第一传输资源,例如,如果第一终端设备通过第一传输资源所进行的业务的优先级高于第二终端设备所进行的业务的优先级,则第二终端设备可以不选用第一传输资源,即确定第一传输资源为不可选用的传输资源,以避免与第一终端设备发生碰撞,而如果第一终端设备通过第一传输资源所进行的业务的优先级低于第二终端设备所进行的业务的优先级,则第二终端设备可以选用第一传输资源,即确定第一传输资源为可选用的传输资源,通过这种方式,可以尽量保证优先级高的业务能够优先进行。
结合第一方面或第一方面的第一种可能的实现方式至第五种可能的实现方式中的任一种可能的实现方式,在第一方面的第六种可能的实现方式中,所述方法还包括:
所述第二终端设备接收所述第二终端设备所在的接入网设备广播的第二
指示信息,所述第二指示信息用于指示所述第二终端设备停止向所述第一终端设备发送数据,或所述第二指示信息用于指示所述第二终端设备控制发送给所述第一终端设备的最大数据量;所述数据包括所述第二终端设备通过所述第一终端设备转发给所述接入网设备的数据;
若所述第二指示信息用于指示所述第二终端设备停止向所述第一终端设备发送数据,则所述第二终端设备根据所述第二指示信息的指示,停止向所述第一终端设备发送数据;或,若所述第二指示信息用于指示所述第二终端设备控制发送给所述第一终端设备的最大数据量,则所述第二终端设备根据所述第二指示信息所指示的所述最大数据量控制发送给所述第一终端设备的数据量。
如果转发给接入网设备的数据量太大,则可能会造成对接入网设备的上行挤占,在这种情况下,接入网设备可以发送第二指示信息,从而第二终端设备可以根据第二指示信息来控制通过第一终端设备转发给接入网设备的数据量,节省上行传输资源,也尽量避免出现上行拥挤的情况,尽量保证通信过程的正常进行。
第二方面,提供一种信息发送方法,包括:
第一终端设备通过D2D链路发送所述第一终端设备所使用的第一信息;其中,所述第一信息用于指示第一传输资源,所述第一传输资源为所述第一终端设备所在的接入网设备为所述第一终端设备分配的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源,或所述第一传输资源为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源。
第一终端设备可以发送该第一终端设备所使用的传输资源(例如将第一终端设备使用的传输资源称为第一传输资源)的信息,这样收到该信息的其他终端设备可能就不会再使用第一传输资源,从而避免了碰撞情况的发生。而且,是由第一终端设备来发送第一信息,第一终端设备的覆盖范围一般来说比基站的覆盖范围小,即使第一终端设备广播第一信息,则接收第一信息
的终端设备的数量一般来说也比接收基站广播的终端设备的数量少,则未接收到第一终端设备发送的第一信息的终端设备可以继续使用第一传输资源,尽量提高第一传输资源的利用率,减少资源浪费。并且,若第一终端设备发送第一信息的覆盖范围大于第一终端设备的通信范围,则只有位于第一终端设备的通信范围之外的终端设备才可能收不到第一信息,即这部分终端设备才能够使用第一传输资源,此时也不会与第一终端设备的传输产生碰撞。即,通过采用本申请的技术方案,在避免碰撞的情况下提高了资源的利用率。
结合第二方面,在第二方面的第一种可能的实现方式中,
所述第一信息包括映射信息,所述映射信息用于指示:在所述接入网广播的传输资源中,所述接入网设备为所述第一终端设备分配的所述第一传输资源,所述第一传输资源为所述传输资源中的部分传输资源或者全部传输资源;或
所述第一信息包括所述第一传输资源占用的调度分配资源位置和数据资源位置。
结合第二方面或第二方面的第一种可能的实现方式,在第二方面的第二种可能的实现方式中,所述第一终端设备通过D2D链路发送所述第一终端设备所使用的第一信息,包括:
所述第一终端设备通过所述D2D链路广播所述第一信息。
结合第二方面的第二种可能的实现方式,在第二方面的第三种可能的实现方式中,所述方法还包括:
所述第一终端设备还通过所述D2D链路广播所述第一终端设备通过所述第一传输资源所传输的业务的优先级信息。
结合第二方面或第二方面的第一种可能的实现方式,在第二方面的第四种可能的实现方式中,若所述第一传输资源包括为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源,则在第一终端设备通过D2D链路发送所述第一终端设备所使用的第一信息之前,还包括:
所述第一终端设备将所述第一信息发送给所述第一终端设备所在的接入网设备,以指示所述接入网设备停止将所述第一传输资源分配给所述接入网设备覆盖范围内的其他终端设备;
所述第一终端设备接收所述接入网设备发送的第二传输资源的信息,以确定所述接入网设备已停止将所述第二传输资源分配给所述接入网设备覆盖范围内的其他终端设备;所述第二传输资源为所述第一传输资源包括的部分传输资源或全部传输资源。
如果第一传输资源为第一终端设备自行配置的传输资源,那么第一终端设备可以请求接入网设备停止将第一传输资源分配给其他终端设备,以尽量避免产生碰撞。
结合第二方面或第二方面的第一种可能的实现方式,在第二方面的第五种可能的实现方式中,
在第一终端设备通过D2D链路发送所述第一终端设备所使用的第一信息之前,还包括:
所述第一终端设备接收第二终端设备发送的用于请求建立连接的第一请求消息;
第一终端设备通过D2D链路发送所述第一终端设备所使用的第一信息,包括:
所述第一终端设备通过所述D2D链路向所述第二终端设备发送第一请求响应消息,所述第一请求响应消息携带所述第一信息。
结合第二方面的第五种可能的实现方式,在第二方面的第六种可能的实现方式中,所述第一请求响应消息还携带所述第一终端设备通过所述第一传输资源所进行的业务的优先级信息。
结合第二方面或第二方面的第一种可能的实现方式至第六种可能的实现方式中的任一种可能的实现方式,在第二方面的第七种可能的实现方式中,所述方法还包括:
所述第一终端设备接收所述第一终端设备所在的接入网设备发送的第一
指示信息,所述第一指示信息用于指示所述第一终端设备停止向所述接入网设备转发数据,或所述第一指示信息用于指示所述第一终端设备控制转发给所述接入网设备的最大数据量;所述数据包括其他终端设备通过所述第一终端设备转发给所述接入网设备的数据;
若所述第一指示信息用于指示所述第一终端设备停止向所述接入网设备发送数据,则所述第一终端设备根据所述第一指示信息的指示,停止向所述接入网设备发送数据;或,若所述第一指示信息用于指示所述第一终端设备控制发送给所述接入网设备的最大数据量,则所述第一终端设备根据所述第一指示信息所指示的所述最大数据量控制发送给所述接入网设备的数据量。
如果转发给接入网设备的数据量太大,则可能会造成对接入网设备的上行挤占,在这种情况下,接入网设备可以发送第一指示信息,从而第一终端设备可以根据第一指示信息来控制转发给接入网设备的数据量,节省上行传输资源,也尽量避免出现上行拥挤的情况,尽量保证通信过程的正常进行。
第三方面,提供一种数据发送指示方法,包括:
接入网设备确定通过第一终端设备转发给所述接入网设备的数据量大于等于第一阈值;
所述接入网设备发送指示信息,所述指示信息用于控制所述第一终端设备转发给所述接入网设备的数据量。
如果转发给接入网设备的数据量太大,则可能会造成对接入网设备的上行挤占,在这种情况下,接入网设备可以发送指示信息,从而可以控制第一终端设备转发给接入网设备的数据量,节省上行传输资源,也尽量避免出现上行拥挤的情况,尽量保证通信过程的正常进行。
结合第三方面,在第三方面的第一种可能的实现方式中,所述接入网设备发送指示信息,包括:
所述接入网设备向所述第一终端设备发送第一指示信息,所述第一指示信息用于指示所述第一终端设备停止向所述接入网设备转发数据,或所述第一指示信息用于指示所述第一终端设备控制转发给所述接入网设备的最大数
据量;所述数据包括其他终端设备通过所述第一终端设备转发给所述接入网设备的数据。
结合第三方面,在第三方面的第二种可能的实现方式中,所述接入网设备发送指示信息,包括:
所述接入网设备向所述接入网设备覆盖范围内的终端设备发送第二指示信息,所述第二指示信息用于指示所述接入网设备覆盖范围内的终端设备停止向所述第一终端设备发送数据,或所述第二指示信息用于指示所述接入网设备覆盖范围内的终端设备控制发送给所述第一终端设备的最大数据量;所述数据包括所述接入网设备覆盖范围内的终端设备通过所述第一终端设备转发给所述接入网设备的数据。
接入网设备可以通过不同的方式来发送指示信息,从而可以对不同的终端设备进行指示,以达到控制上行数据量的效果,控制方式较为灵活,可根据实际需求来进行选择。
结合第三方面或第三方面的第一种可能的实现方式或第二种可能的实现方式,在第三方面的第三种可能的实现方式中,所述方法还包括:
所述接入网设备接收第一终端设备发送的第一信息;所述第一传输资源包括为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的终端到终端D2D链路上传输数据的资源;
所述接入网设备确定停止将第二传输资源分配给所述接入网设备覆盖范围内的其他终端设备;所述第二传输资源为所述第一传输资源包括的部分传输资源或全部传输资源;
所述接入网设备将所述第二传输资源的信息发送给所述第一终端设备。
如果第一传输资源为第一终端设备自行配置的传输资源,那么第一终端设备可以请求接入网设备停止将第一传输资源分配给其他终端设备,以尽量避免产生碰撞。接入网设备可以将分配的结果告知第一终端设备,从而第一终端设备就可以知道接入网设备停止将哪些传输资源分配给了其他终端设备,从而便于第一终端设备后续选择合适的传输资源。
第四方面,提供第一种上行同步方法,包括:
第一终端设备向所述第一终端设备所在的接入网设备发送用于请求建立连接的第二请求消息;所述第二请求消息携带用于指示所述第一终端设备将始终处于静止状态的第三指示信息;
所述第一终端设备接收所述接入网设备发送的条件信息;
所述第一终端设备根据所述条件信息判决所述第一终端设备是否出现了上行失步现象。
第一终端设备如果是部署在道路上的静止的终端设备,其上行定时一般来说不会发生变化。然而根据现有技术,接入网设备仍然需要不断地为第一终端设备发送上行定时信息,这就造成了不必要的信令开销。采用本申请提供的技术方案,第一终端设备在向接入网设备发送第二请求消息时就可以告知接入网设备第一终端设备将始终处于静止状态,那么接入网设备只需向第一终端设备发送一次上行定时信息,节省信令开销。另外,接入网设备可以向第一终端设备发送条件信息,这样第一终端设备可以自行判决第一终端设备是否出现了上行失步现象,例如,若出现了上行失步现象,则第一终端设备可以及时地重新与接入网设备进行上行同步,这样,在节省信令开销的情况下,又可以尽量保证第一终端设备能够与接入网设备之间的上行同步,避免第一终端设备能够与接入网设备之间的通信过程受到影响。
结合第四方面,在第四方面的第一种可能的实现方式中,在所述第一终端设备根据所述条件信息判决所述第一终端设备是否出现了上行失步现象之后,还包括:
若所述第一终端设备根据所述条件信息确定所述第一终端设备出现了上行失步现象,则所述第一终端设备发起上行同步过程,以重新与所述接入网设备进行上行同步。
如果第一终端设备确定出现了上行失步现象,则可以发起上行同步过程,从而可以及时与接入网设备恢复上行同步。
结合第四方面或第四方面的第一种可能的实现方式,在第四方面的第二
种可能的实现方式中,所述条件信息包括时长门限值或丢包数量门限值;所述时长门限值用于指示所述第一终端设备接收的来自所述接入网设备的信号在预定时间范围内的最大时间偏移量,所述丢包数量门限值用于指示所述第一终端设备发送给所述接入网设备的最大丢包数量。
条件信息可以包括不同的内容,从而第一终端设备可以根据不同的条件信息来进行判断,方式较为灵活。
结合第四方面的第二种可能的实现方式,在第四方面的第三种可能的实现方式中,若所述条件信息包括所述时长门限值,则所述第一终端设备根据所述条件信息判决所述第一终端设备是否出现了上行失步现象,包括:
所述第一终端设备确定接收的来自所述接入网设备的信号的时间偏移量大于或等于所述时长门限值;
所述第一终端设备确定所述第一终端设备出现上行失步现象。
结合第四方面的第二种可能的实现方式,在第四方面的第四种可能的实现方式中,若所述条件信息包括所述丢包数量门限值,则所述第一终端设备根据所述条件信息判决所述第一终端设备是否出现了上行失步现象,包括:
所述第一终端设备确定发送给所述接入网设备的丢包数量大于或等于所述丢包数量门限值;
所述第一终端设备确定所述第一终端设备出现上行失步现象。
提供了两种可能的判断上行失步的方式,第一终端设备可以根据条件信息中包括的不同内容来选择不同的判断过程。
第五方面,提供第二种上行同步方法,包括:
接入网设备接收第一终端设备发送的用于请求建立连接的第二请求消息;所述第二请求消息携带用于指示所述第一终端设备将始终处于静止状态的第三指示信息;
所述接入网设备向所述第一终端设备发送条件信息;所述条件信息用于判决所述第一终端设备是否出现了上行失步现象。
结合第五方面,在第五方面的第一种可能的实现方式中,所述条件信息
包括时长门限值或丢包数量门限值;所述时长门限值用于指示所述第一终端设备接收的来自所述接入网设备的信号在预定时间范围内的最大时间偏移量,所述丢包数量门限值用于指示所述第一终端设备发送给所述接入网设备的最大丢包数量。
结合第五方面或第五方面的第一种可能的实现方式,在第五方面的第二种可能的实现方式中,在所述接入网设备向所述第一终端设备发送条件信息之后,还包括:
所述接入网设备接收所述第一终端设备发起的上行同步过程,以重新与所述第一终端设备进行上行同步。
接入网设备可以接收第一终端设备发起的上行同步过程,从而与第一终端设备重新实现上行同步,使得第一终端设备与接入网设备之间的通信过程可以正常进行。
第六方面,提供第一种终端设备,包括:
接收器,用于通过D2D链路接收第一终端设备发送的第一信息;其中,所述第一信息用于指示第一传输资源,所述第一传输资源为所述第一终端设备所在的接入网设备为所述第一终端设备分配的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源,或所述第一传输资源为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源;
处理器,用于根据所述第一信息确定所述第一传输资源是否为所述第二终端设备可选用的传输资源。
结合第六方面,在第六方面的第一种可能的实现方式中,
所述第一信息包括映射信息,所述映射信息用于指示:在所述接入网设备广播的传输资源中,所述接入网设备为所述第一终端设备分配的所述第一传输资源,所述第一传输资源为所述传输资源中的部分传输资源或者全部传输资源;或
所述第一信息包括所述第一传输资源占用的调度分配资源位置和数据资
源位置。
结合第六方面或第六方面的第一种可能的实现方式,在第六方面的第二种可能的实现方式中,所述接收器用于:
通过所述D2D链路接收所述第一终端设备广播的所述第一信息。
结合第六方面或第六方面的第一种可能的实现方式,在第六方面的第三种可能的实现方式中,所述终端设备还包括发送器;
所述发送器用于:在所述接收器通过D2D链路接收第一终端设备发送的所述第一终端设备使用的所述第一信息之前,向所述第一终端设备发送用于请求建立连接的第一请求消息;
所述接收器用于:通过D2D链路接收所述第一终端设备发送的第一请求响应消息,所述第一请求响应消息携带所述第一信息。
结合第六方面或第六方面的第一种可能的实现方式至第三种可能的实现方式中的任一种可能的实现方式,在第六方面的第四种可能的实现方式中,所述接收器还用于:
通过所述D2D链路接收所述第一终端设备发送的所述第一终端设备通过所述第一传输资源所进行的业务的优先级信息。
结合第六方面的第四种可能的实现方式,在第六方面的第五种可能的实现方式中,所述处理器用于:
根据所述第一终端设备通过所述第一传输资源所进行的业务的优先级信息以及所述终端设备所进行的业务的优先级信息,确定所述第一传输资源是否为可选用的传输资源。
结合第六方面或第六方面的第一种可能的实现方式至第五种可能的实现方式中的任一种可能的实现方式,在第六方面的第六种可能的实现方式中,
所述接收器还用于:接收所述终端设备所在的接入网设备广播的第二指示信息,所述第二指示信息用于指示所述终端设备停止向所述第一终端设备发送数据,或所述第二指示信息用于指示所述终端设备控制发送给所述第一终端设备的最大数据量;所述数据包括所述终端设备通过所述第一终端设备
转发给所述接入网设备的数据;
所述处理器还用于:若所述第二指示信息用于指示所述终端设备停止向所述第一终端设备发送数据,则根据所述第二指示信息的指示,停止向所述第一终端设备发送数据;或,若所述第二指示信息用于指示所述终端设备控制发送给所述第一终端设备的最大数据量,则根据所述第二指示信息所指示的所述最大数据量控制发送给所述第一终端设备的数据量。
第七方面,提供第二种终端设备,包括:
发送器,用于通过D2D链路发送所述终端设备所使用的第一信息;其中,所述第一信息用于指示第一传输资源,所述第一传输资源为所述终端设备所在的接入网设备为所述终端设备分配的所述终端设备和其他终端设备的D2D链路上传输数据的资源,或所述第一传输资源为所述终端设备预先配置的所述终端设备和其他终端设备的D2D链路上传输数据的资源。
结合第七方面,在第七方面的第一种可能的实现方式中,
所述第一信息包括映射信息,所述映射信息用于指示:在所述接入网广播的传输资源中,所述接入网设备为所述终端设备分配的所述第一传输资源,所述第一传输资源为所述传输资源中的部分传输资源或者全部传输资源;或
所述第一信息包括所述第一传输资源占用的调度分配资源位置和数据资源位置。
结合第七方面或第七方面的第一种可能的实现方式,在第七方面的第二种可能的实现方式中,所述发送器用于:
通过所述D2D链路广播所述第一信息。
结合第七方面的第二种可能的实现方式,在第七方面的第三种可能的实现方式中,所述发送器还用于:
通过所述D2D链路广播所述终端设备通过所述第一传输资源所传输的业务的优先级信息。
结合第七方面或第七方面的第一种可能的实现方式,在第七方面的第四种可能的实现方式中,所述终端设备还包括接收器;若所述第一传输资源包
括为所述终端设备预先配置的所述终端设备和其他终端设备的D2D链路上传输数据的资源,则:
所述发送器还用于:在通过D2D链路发送所述终端设备所使用的第一信息之前,将所述第一信息发送给所述终端设备所在的接入网设备,以指示所述接入网设备停止将所述第一传输资源分配给所述接入网设备覆盖范围内的其他终端设备;
所述接收器用于:接收所述接入网设备发送的第二传输资源的信息,以确定所述接入网设备已停止将所述第二传输资源分配给所述接入网设备覆盖范围内的其他终端设备;所述第二传输资源为所述第一传输资源包括的部分传输资源或全部传输资源。
结合第七方面或第七方面的第一种可能的实现方式,在第七方面的第五种可能的实现方式中,所述终端设备还包括接收器;
所述接收器用于:在所述发送器通过D2D链路发送所述终端设备所使用的第一信息之前,接收第二终端设备发送的用于请求建立连接的第一请求消息;
所述发送器用于:通过所述D2D链路向所述第二终端设备发送第一请求响应消息,所述第一请求响应消息携带所述第一信息。
结合第七方面的第五种可能的实现方式,在第七方面的第六种可能的实现方式中,所述第一请求响应消息还携带所述终端设备通过所述第一传输资源所进行的业务的优先级信息。
结合第七方面或第七方面的第一种可能的实现方式至第六种可能的实现方式中的任一种可能的实现方式,在第七方面的第七种可能的实现方式中,所述终端设备还包括接收器;
所述接收器用于:接收所述终端设备所在的接入网设备发送的第一指示信息,所述第一指示信息用于指示所述终端设备停止向所述接入网设备转发数据,或所述第一指示信息用于指示所述终端设备控制转发给所述接入网设备的最大数据量;所述数据包括其他终端设备通过所述终端设备转发给所述
接入网设备的数据;
所述处理器还用于:若所述第一指示信息用于指示所述终端设备停止向所述接入网设备发送数据,则根据所述第一指示信息的指示,停止向所述接入网设备发送数据;或,若所述第一指示信息用于指示所述终端设备控制发送给所述接入网设备的最大数据量,则根据所述第一指示信息所指示的所述最大数据量控制发送给所述接入网设备的数据量。
第八方面,提供第一种接入网设备,包括:
处理器,用于确定通过第一终端设备转发给所述接入网设备的数据量大于等于第一阈值;
发送器,用于发送指示信息,所述指示信息用于控制所述第一终端设备转发给所述接入网设备的数据量。
结合第八方面,在第八方面的第一种可能的实现方式中,所述发送器用于:
向所述第一终端设备发送第一指示信息,所述第一指示信息用于指示所述第一终端设备停止向所述接入网设备转发数据,或所述第一指示信息用于指示所述第一终端设备控制转发给所述接入网设备的最大数据量;所述数据包括其他终端设备通过所述第一终端设备转发给所述接入网设备的数据。
结合第八方面,在第八方面的第二种可能的实现方式中,所述发送器用于:
向所述接入网设备覆盖范围内的终端设备发送第二指示信息,所述第二指示信息用于指示所述接入网设备覆盖范围内的终端设备停止向所述第一终端设备发送数据,或所述第二指示信息用于指示所述接入网设备覆盖范围内的终端设备控制发送给所述第一终端设备的最大数据量;所述数据包括所述接入网设备覆盖范围内的终端设备通过所述第一终端设备转发给所述接入网设备的数据。
结合第八方面或第八方面的第一种可能的实现方式或第二种可能的实现方式,在第八方面的第三种可能的实现方式中,所述接入网设备还包括接收
器;
所述接收器用于:接收第一终端设备发送的第一信息;所述第一传输资源包括为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的终端到终端D2D链路上传输数据的资源;
所述处理器还用于:确定停止将第二传输资源分配给所述接入网设备覆盖范围内的其他终端设备;所述第二传输资源为所述第一传输资源包括的部分传输资源或全部传输资源;
所述发送器还用于:将所述第二传输资源的信息发送给所述第一终端设备。
第九方面,提供第三种终端设备,包括:
发送器,用于向所述终端设备所在的接入网设备发送用于请求建立连接的第二请求消息;所述第二请求消息携带用于指示所述终端设备将始终处于静止状态的第三指示信息;
接收器,用于接收所述接入网设备发送的条件信息;
处理器,用于根据所述条件信息判决所述终端设备是否出现了上行失步现象。
结合第九方面,在第九方面的第一种可能的实现方式中,所述处理器还用于:
在根据所述条件信息判决所述终端设备是否出现了上行失步现象之后,若根据所述条件信息确定所述终端设备出现了上行失步现象,则发起上行同步过程,以重新与所述接入网设备进行上行同步。
结合第九方面或第九方面的第一种可能的实现方式,在第九方面的第二种可能的实现方式中,所述条件信息包括时长门限值或丢包数量门限值;所述时长门限值用于指示所述终端设备接收的来自所述接入网设备的信号在预定时间范围内的最大时间偏移量,所述丢包数量门限值用于指示所述终端设备发送给所述接入网设备的最大丢包数量。
结合第九方面的第二种可能的实现方式,在第九方面的第三种可能的实
现方式中,若所述条件信息包括所述时长门限值,则所述处理器用于:
确定接收的来自所述接入网设备的信号的时间偏移量大于或等于所述时长门限值;
确定所述终端设备出现上行失步现象。
结合第九方面的第二种可能的实现方式,在第九方面的第四种可能的实现方式中,若所述条件信息包括所述丢包数量门限值,则所述处理器用于:
确定发送给所述接入网设备的丢包数量大于或等于所述丢包数量门限值;
确定所述终端设备出现上行失步现象。
第十方面,提供第二种接入网设备,包括:
接收器,用于接收第一终端设备发送的用于请求建立连接的第二请求消息;所述第二请求消息携带用于指示所述第一终端设备将始终处于静止状态的第三指示信息;
发送器,用于向所述第一终端设备发送条件信息;所述条件信息用于判决所述第一终端设备是否出现了上行失步现象。
结合第十方面,在第十方面的第一种可能的实现方式中,所述条件信息包括时长门限值或丢包数量门限值;所述时长门限值用于指示所述第一终端设备接收的来自所述接入网设备的信号在预定时间范围内的最大时间偏移量,所述丢包数量门限值用于指示所述第一终端设备发送给所述接入网设备的最大丢包数量。
结合第十方面或第十方面的第一种可能的实现方式,在第十方面的第二种可能的实现方式中,所述处理器还用于:
在所述发送器向所述第一终端设备发送条件信息之后,接收所述第一终端设备发起的上行同步过程,以重新与所述第一终端设备进行上行同步。
第十一方面,提供第四种终端设备,包括用于执行第一方面的方法的模块。
第十二方面,提供第五种终端设备,包括用于执行第二方面的方法的模
块。
第十三方面,提供第三种接入网设备,包括用于执行第三方面的方法的模块。
第十四方面,提供第六种终端设备,包括用于执行第四方面的方法的模块。
第十五方面,提供第四种接入网设备,包括用于执行第五方面的方法的模块。
为了更清楚地说明本发明实施例的技术方案,下面将对本发明实施例中所需要使用的附图作简单地介绍,显而易见地,下面所介绍的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本发明实施例的一种可能的应用场景示意图;
图2为本发明实施例提供的信息接收方法的流程图;
图3为本发明实施例提供的信息发送方法的流程图;
图4为本发明实施例提供的数据发送指示方法的流程图;
图5-图8为本发明实施例提供的几种将RSU分配的传输资源告知终端设备的交互流程图;
图9为本发明实施例提供的第一种上行同步方法的流程图;
图10为本发明实施例提供的第二种上行同步方法的流程图;
图11为本发明实施例提供的上行同步方法的交互流程图;
图12为本发明实施例提供的第二终端设备的结构框图;
图13为本发明实施例提供的第二终端设备的结构示意图;
图14为本发明实施例提供的第一终端设备的结构框图;
图15为本发明实施例提供的第一终端设备的结构示意图;
图16为本发明实施例提供的接入网设备的结构框图;
图17为本发明实施例提供的接入网设备的结构示意图;
图18为本发明实施例提供的第一终端设备的另外一种结构框图;
图19为本发明实施例提供的第一终端设备的另外一种结构示意图;
图20为本发明实施例提供的接入网设备的另外一种结构框图;
图21为本发明实施例提供的接入网设备的另外一种结构示意图。
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明实施例保护的范围。
本文中描述的技术可用于各种通信系统,例如LTE系统,第五代移动通信系统(5G),以及其他此类通信系统。
以下,对本发明实施例中的部分用语进行解释说明,以便于本领域技术人员理解。
1)终端设备,是指向用户提供语音和/或数据连通性的设备,例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(Radio Access Network,RAN)与核心网进行通信,与RAN交换语音和/或数据。该终端设备可以包括车辆、UE、无线终端设备、移动终端设备、订户单元(Subscriber Unit)、订户站(Subscriber Station),移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point,AP)、远程终端设备(Remote Terminal)、接入终端设备(Access Terminal)、用户终端设备(User Terminal)、用户代理(User Agent)、或用户装备(User Device)等。例如,可以包括移动电话(或称为“蜂窝”电话),具有移动终端设备的计算机,NB-IoT中的专用终端设备,便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。例如,个人通信业务(Personal
Communication Service,PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备。
2)RSU,是一种在路边固定的终端设备,用于将接收的车辆终端的V2V/车辆到基础设施(Vehicle to Infrastructure,V2I)的D2D链路的数据转发给其他网络设备,例如转发给基站。典型的RSU例如可以包括LTE系统中的UE-type RSU(终端类型路边单元),UE-NW relay(终端-网络中继节点),Type I/II relay(类型I/II中继站)等,本发明实施例不做限定。
3)网络设备,例如包括接入网设备,接入网设备例如包括基站(例如,接入点),具体可以是指接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备。基站可用于将收到的空中帧与网际协议(IP)分组进行相互转换,作为无线终端设备与接入网的其余部分之间的路由器,其中接入网的其余部分可包括IP网络。基站还可协调对空中接口的属性管理。例如,基站可以是演进的LTE系统(LTE-Advanced,LTE-A)中的演进型基站(NodeB或eNB或e-NodeB,evolutional Node B),本发明实施例并不限定。
4)D2D技术可以支持终端设备和终端设备之间使用专用空中接口技术进行直接数据通信,是一种端到端的直接通信的技术。与传统的蜂窝通信技术最大的不同在于,在D2D技术支持下,终端设备与终端设备之间不需要基站的中转就可以直接进行通信,基站可以进行资源的配置、调度、及协调等,辅助终端设备之间进行直接通信。当D2D技术应用于车联网业务时,D2D链路也可以称作V2I链路或者V2V链路。
5)本发明实施例中的术语“系统”和“网络”可被互换使用。“多个”是指两个或两个以上。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,字符“/”,如无特殊说明,一般表示前后关联对象是一种“或”的关系。
请参见图1,为本发明实施例的一种可能的应用场景。
例如在系统中部署了RSU1,RSU1可以与基站进行通信。例如终端设备1和终端设备2可以通过RSU1向基站转发数据,终端设备3和终端设备4不通过RSU1向基站转发数据,而是直接与基站通信。那么可以认为,终端设备1和终端设备2处于RSU1的覆盖范围内,而终端设备3和终端设备4处于RSU1的覆盖范围外,如果RSU1进行广播,则终端设备1和终端设备2可以正确接收,终端设备3和终端设备4不能正确接收。其中,图1中的各个终端设备均以车辆为例。
下面结合附图介绍本发明实施例提供的方案。
请参见图2,提供一种信息接收方法,该方法的流程描述如下:
步骤201:第二终端设备通过D2D链路接收第一终端设备发送的所述第一终端设备所使用的第一信息;其中,第一信息用于指示第一传输资源,第一传输资源为所述第一终端设备所在的接入网设备为第一终端设备分配的第一终端设备和其他终端设备的D2D链路上传输数据的资源,或第一传输资源为第一终端设备预先配置的第一终端设备和其他终端设备的D2D链路上传输数据的资源;
步骤202:第二终端设备根据第一信息确定第一传输资源是否为可选用的传输资源。
请参见图3,基于同一发明构思,提供一种信息发送方法,该方法的流程描述如下:
步骤301:第一终端设备通过D2D链路发送第一终端设备所使用的第一信息;其中,第一信息用于指示第一传输资源,第一传输资源为所述第一终端设备所在的接入网设备为第一终端设备分配的第一终端设备和其他终端设备的D2D链路上传输数据的资源,或第一传输资源为第一终端设备预先配置的第一终端设备和其他终端设备的D2D链路上传输数据的资源。
请参见图4,基于同一发明构思,提供一种数据发送指示方法,该方法的流程描述如下:
步骤401:接入网设备确定通过第一终端设备转发给接入网设备的数据量
大于等于第一阈值;
步骤402:接入网设备发送指示信息,指示信息用于控制第一终端设备转发给接入网设备的数据量。
可选的,第一阀值可以是接入网设备自身配置的,或者也可以是网管系统(OAM)配置的。
可选的,第一终端设备和其他终端设备的D2D链路上传输数据的资源可以包括第一终端设备在D2D链路给其他终端设备发送数据(比如LTE的I2V广播或者单播数据,或者RSU转发的V2V数据)的传输资源,还可以包括其他终端设备在D2D链路给第一终端设备发送数据(比如LTE的V2I的广播或者单播数据,或者转发给RSU的V2V数据)的传输资源。
其中,图2-图4为相应的方法,下面一起进行介绍。在下面的介绍过程中,以第一终端设备是RSU为例,在实际应用中,第一终端设备不限于RSU,也可能是其他的终端设备。
例1:
在例1中,RSU处于接入网设备的覆盖范围内,且由接入网设备为RSU调度资源。以接入网设备是基站为例。
RSU从网络设备获得相应的RSU配置信息,网络设备例如可以包括D2D的公共安全功能实体(ProSe function),例如可以包括V2I服务器,当然也可能是其他的网络设备,比如RSU可以获得D2D链路广播信道的传输资源,这里D2D链路广播信道的传输资源例如可以包括广播信道的频率位置、时域位置、资源周期和跳频方式等资源中的至少一种,RSU还可以从网络设备获得RSU的身份标识号(ID),等等。其中,D2D链路广播信道可以包括LTE系统的D2D链路公共控制信道(Sidelink broadcast common control channel,SBCCH),或者也可以包括其他的广播信道,比如还可以包括本发明实施例自定义的广播信道,例如可以包括RSU广播公共控制信道(RSU broacast common control channel)等。下面的步骤请参见图5。
1、基站可以使用专用信令,将RSU使用的第一传输资源(例如包括V2I
链路传输资源)配置给RSU。比如,在LTE系统中,基站可以使用无线资源控制(Radio Resource Control,RRC)信令为RSU配置第一传输资源。即,在例1中,第一传输资源是RSU所在的基站为该RSU分配的该RSU和其他终端设备的D2D链路上传输数据的资源,该第一传输资源包括不限于第一传输资源占用的SA(Scheduling assignment,调度分配)资源位置和数据(Data)资源位置,其中SA资源可以包含该SA资源的周期、频率位置、时域位置、及跳频模式等,Data资源位置可以包含Data资源的周期、频率位置、时域位置、及跳频模式等。
2、RSU在获得基站配置的第一传输资源后,在为RSU配置的D2D链路广播信道的传输资源上,将获得的第一信息进行广播,这样,该RSU覆盖范围内的终端设备可以接收RSU广播的第一信息。其中,第一信息用于指示第一传输资源,比如某终端设备接收第一信息后,就可以知道RSU使用的传输资源为第一传输资源。
可选的,第一信息可以包括第一传输资源占用的SA资源位置和Data资源位置,当然还可以包括其他可能的信息。
可选的,有一种情况可以是:基站事先广播了一个或多个公共传输资源的信息,在基站广播的公共传输资源的信息中就包括了基站分配给RSU的传输资源的信息,即第一信息,那么在这种情况下,RSU广播的第一信息也可以包括映射信息,例如可以为映射表,该映射表可以指示由基站广播的公共传输资源的信息中,哪些公共传输资源是基站分配给RSU的第一传输资源。例如,基站广播的公共传输资源的信息包括公共传输资源1的信息、公共传输资源2的信息和公共传输资源3的信息,基站分配给RSU的第一传输资源为其中的公共传输资源3,则RSU可以广播映射信息,该映射信息用于指示公共传输资源3,则其他终端设备接收基站广播的公共传输资源的信息以及RSU广播的映射信息之后,就可以知晓RSU使用的传输资源为公共传输资源3。
可选的,RSU除了广播第一信息外,还可以广播RSU通过第一传输资源所传输的业务类型。
可选的,RSU除了广播第一信息之外,还可以广播该RSU通过第一传输资源所进行的业务的优先级信息。
3、RSU覆盖范围内的终端设备在D2D链路接收了RSU广播的第一信息后,如果RSU未广播通过第一传输资源所进行的业务的优先级信息,则这些终端设备不再使用第一传输资源发送D2D数据(例如不再使用第一传输资源对应的传输时间间隔(Transmission Time Interval,TTI)发送数据),以保证RSU传输的优先级,尽量避免与RSU产生碰撞。其中,图5中的第二终端设备为RSU覆盖范围内的任意一个终端设备。可选的,如果RSU广播的第一信息为映射信息,则接收了该映射信息的终端设备不再使用从基站获取的所有公共传输资源中通过该映射信息所指示的所有传输资源。
可选的,如果RSU还广播了该RSU通过第一传输资源所进行的业务的优先级信息,则该RSU覆盖范围内的终端设备还可以接收该RSU通过第一传输资源所进行的业务的优先级信息。例如,该RSU覆盖范围内的任意一个终端设备接收了该RSU通过第一传输资源所进行的业务的优先级信息,且该终端设备也被配置了使用部分或者全部第一传输资源在D2D链路上传输终端设备的业务,则该终端设备可以将该终端设备在D2D链路上所进行的业务的优先级和RSU通过第一传输资源所进行的业务的优先级进行比较,以确定第一传输资源是否为可选用的传输资源,即该终端设备可以根据该终端设备在D2D链路上所进行的业务的优先级和RSU通过第一传输资源所进行的业务的优先级确定是否可以使用第一传输资源发送数据,以保证该终端设备和RSU中优先级较高的业务的正常进行。
通过RSU广播业务的优先级信息,可以使得终端设备根据优先级确定是否要与RSU抢占传输资源,能够尽量保证高优先级的业务正常进行传输。
可选的,可能RSU覆盖范围内有多个终端设备需要通过RSU向基站转发数据,这样可能造成对基站上行传输资源的挤占,那么基站可以发送指示信息,以指示RSU控制发送给基站的数据量,指示信息可以包括第一指示信息和/或第二指示信息,具体可参考如下的步骤4,即,如果出现这种情况,可以执行
图5中的步骤4。
4、当通过RSU转发的数据过多(比如基站确定通过RSU转发的数据的数据量大于等于第一阈值。其中,第一阈值可以由协议规定,或者也可以由系统设定,比如可以由基站自行设定等),造成了对基站上行传输资源的挤占时,基站可以广播或者单播相应的指示信息给该基站覆盖范围内的一个或者多个RSU(例如此时的指示信息可以包括第一指示信息),以告知这些RSU不再转发数据给基站,或者可以告知这些RSU转发给基站的最大数据量,即告知RSU控制转发给基站的数据量不能超过该最大数据量,这样就可以控制RSU转发给基站的数据量。例如该第一指示信息可以占据1位(bit),指示RSU是否可以继续转发数据给基站,或者该第一指示信息也可以携带最大数据量,该最大数据量即可以是RSU可以转发给基站的数据量的上限,等等。
可替换的,步骤4也可以是下面的方式:
4、当通过RSU转发的数据过多(比如基站确定通过RSU转发的数据的数据量大于等于第一阈值。其中,第一阈值可以由协议规定,或者也可以由系统设定,比如可以由基站自行设定等),造成了对基站上行传输资源的挤占时,基站可以广播相应的指示信息(例如此时的指示信息可以包括第二指示信息),或者基站也可以向基站覆盖范围内的终端设备单播第二指示信息,以告知这些终端设备不再转发数据给RSU,或者可以告知这些终端设备转发给RSU的最大数据量,即告知这些终端设备控制转发给RSU的数据量不能超过该最大数据量,这样就可以控制RSU转发给基站的数据量,从而减少基站接收的数据量。例如该第二指示信息可以占据1bit,指示终端设备是否可以继续转发数据给RSU,或者该第二指示信息也可以携带最大数据量,该最大数据量可以是终端设备可以转发给RSU的数据量的上限,这样该基站覆盖范围内的终端设备不再转发数据给RSU,或者控制转发给RSU的数据量,这样就可以减少RSU转发给基站的数据量。
例2:
在例1中,RSU广播了自身使用的传输资源的信息(即第一信息),需要
占用一定的D2D链路广播信道的资源。如果RSU的覆盖范围内没有终端设备存在,RSU照常进行广播,就会浪费广播资源。鉴于此,提供例2,可以节省广播信令开销。
同样的,在例2中,RSU也处于接入网设备的覆盖范围内,且由接入网设备为RSU调度资源。以接入网设备是基站为例。
在例2中,例如RSU的覆盖范围内起初没有终端设备,RSU可以不广播基站为RSU分配的第一信息,因此RSU可以不从网络设备获取D2D链路的广播信道的资源。当然如果RSU还需使用D2D链路的广播信道进行其他操作,也可以从网络设备获取D2D链路的广播信道的资源,获取方式可参考例1中的介绍。
请参见图6,例2的步骤1可参考例1,下面介绍例2中的不同步骤。
2、一个终端设备在进入RSU的覆盖范围后,向RSU发送用于请求建立连接的请求消息,例如将该终端设备称为第二终端设备,将该请求建立连接的消息称为第一请求消息。
3、RSU向该第二终端设备发送针对第一请求消息的第一请求响应消息,以与该第二终端设备建立连接。
可选的,RSU可以将第一信息携带在该第一请求响应消息中,或者RSU也可以将第一信息携带在其他可能的专用信令中发送给第二终端设备。
可选的,有一种情况可以是:基站事先广播了一个或多个公共传输资源的信息,在基站广播的公共传输资源的信息中就包括了基站分配给RSU的传输资源的信息,即第一信息,那么在这种情况下,RSU发送的第一请求响应消息携带的第一信息也可以包括映射信息,例如映射信息可以包括映射表,该映射表可以指示由基站广播的公共传输资源的信息中,哪些公共传输资源是基站分配给RSU的第一传输资源。
可选的,RSU除了向第二终端设备发送第一信息外,还可以向该第二终端设备发送RSU通过第一传输资源所传输的业务类型,例如可以包括V2I业务类型。
RSU可以将第一信息和RSU通过第一传输资源所传输的业务类型携带在
同一条信令中发送给终端设备,或者,RSU也可以将第一信息和RSU通过第一传输资源所传输的业务类型携带在不同的信令中发送给终端设备。
可选的,RSU除了向终端设备发送第一信息之外,还可以向终端设备发送该RSU通过第一传输资源所进行的业务的优先级信息。
RSU可以将第一信息、RSU通过第一传输资源所传输的业务类型、及该RSU通过第一传输资源所进行的业务的优先级信息携带在同一条信令中发送给终端设备,或者,RSU也可以将第一信息、RSU通过第一传输资源所传输的业务类型、及该RSU通过第一传输资源所进行的业务的优先级信息携带在不同的信令中发送给终端设备,或者RSU也可以将第一信息、RSU通过第一传输资源所传输的业务类型、及该RSU通过第一传输资源所进行的业务的优先级信息中的任意两种信息携带在一条信令中发送给终端设备。
这样,RSU可以使用专用信令将第一信息告知与RSU建立连接的终端设备,减少了不必要的广播资源的开销。
4、第二终端设备在接收了RSU发送的第一信息后,若未收到RSU通过第一传输资源所进行的业务的优先级信息,则第二终端设备不再使用第一传输资源发送数据,也不再使用第一传输资源接收数据,以保证RSU传输的优先级,尽量避免与RSU产生碰撞。可选的,如果RSU发送的第一信息为映射信息,则接收了该映射信息的第二终端设备不再使用从基站获取的所有公共传输资源中通过该映射信息所指示的所有传输资源。
可选的,如果RSU还发送了该RSU通过第一传输资源所进行的业务的优先级信息,则该第二终端设备还可以接收该RSU通过第一传输资源所进行的业务的优先级信息。例如,该第二终端设备接收了该RSU通过第一传输资源所进行的业务的优先级信息,则该第二终端设备可以根据该第二终端设备在D2D链路上所进行的业务的优先级与该RSU通过第一传输资源所进行的业务的优先级决定是否抢占第一传输资源,这部分内容可参考例1中的步骤3的介绍。
可选的,可能RSU覆盖范围内有多个终端设备需要通过RSU向基站转发数
据,这样可能造成对基站上行传输资源的挤占。如果出现这种情况,那么可以执行图6中的步骤5,图6中的步骤5同样可以有两种实现方式,可参考例1中的步骤4。
例3:
在例3中,RSU处于接入网设备的覆盖范围内,但RSU可以自行独立选择资源,即RSU可以自行独立选择第一传输资源,而无需接入网设备为RSU分配资源,RSU自行分配的第一传输资源可能包括系统为RSU预先配置的该RSU向其他终端设备的D2D链路上传输数据的资源。该第一传输资源包括不限于第一传输资源占用的SA资源和Data资源位置,其中SA资源可以包含该SA资源的周期、频率位置、时域位置、及跳频模式等,Data资源位置可以包含Data资源的周期、频率位置、时域位置、及跳频模式等。比如RSU可以包括街头的红绿灯,等等。以接入网设备是基站为例。下面请参见图7。
1、RSU通过D2D链路广播信道的传输资源广播第一信息,这样,该RSU覆盖范围内的终端设备可以接收RSU广播的第一信息。其中,第一信息用于指示第一传输资源,比如某终端设备接收第一信息后,就可以知道RSU使用的传输资源为第一传输资源。
第一传输资源可以是RSU从系统预先为该RSU配置的传输资源中选择的传输资源。
可选的,RSU获得广播信道的传输资源的方式可以参考例1中的步骤1,或者,RSU也可以通过其他方式获得广播信道的传输资源。
可选的,RSU除了广播第一信息外,还可以广播RSU通过第一传输资源所传输的业务类型。
可选的,RSU除了广播第一信息之外,还可以广播该RSU通过第一传输资源所进行的业务的优先级信息。
2、可参考例1的步骤3。其中,图7中的第二终端设备为RSU覆盖范围内的任意一个终端设备。
3、RSU可以将第一信息发送给该RSU接入的基站,以指示该基站停止
将第一传输资源分配给该基站覆盖范围内的终端设备。
4、基站接收RSU发送的第一信息后,可以向RSU回复第二传输资源的信息,以指示该基站会停止将第二传输资源分配给其他终端设备。其中,第二传输资源为第一传输资源包括的全部传输资源或部分传输资源,即第二传输资源可以是第一传输资源的子集。可选的,第二传输资源的信息可以指示RSU能够使用的时域信息,类似于LTE系统中的间隙(Gap)信息,可选的,第二传输资源的信息可以包括1bit,以指示RSU是否可以使用第一传输资源在D2D链路上传输数据。
比如,RSU向基站发送的第一信息包括传输资源1的信息、传输资源2的信息和传输资源3的信息,以告知基站,RSU将要使用这些传输资源,基站应停止将这些传输资源分配给其他终端设备,以避免碰撞。基站接收传输资源1的信息、传输资源2的信息和传输资源3的信息后,可以进行判决,确定其中有哪些传输资源不会分配给其他终端设备,并将确定结果再发送给RSU,确定结果就包括第二传输资源的信息。例如,基站确定传输资源1和传输资源2不会分配给其他终端设备,但传输资源3可能还是会分配给其他终端设备,则基站可以将传输资源1的信息和传输资源2的信息发送给RSU,RSU接收传输资源1的信息和传输资源2的信息后,就可以知道基站可能还会将传输资源3分配给其他终端设备。可选的,RSU在后续可以尽量少选用传输资源3,以尽量避免出现碰撞情况。再例如,基站若确定传输资源1、传输资源2和传输资源3都不会再分配给其他终端设备,则基站向RSU发送的第二传输资源的信息可以包括传输资源1的信息、传输资源2的信息和传输资源3的信息,或者也可以包括1bit,RSU接收该1bit后,就可以知道RSU准备使用的所有传输资源基站均不会再分配给其他终端设备。
可选的,可能RSU覆盖范围内有多个终端设备需要通过RSU向基站转发数据,这样可能造成对基站上行传输资源的挤占。如果出现这种情况,那么可以执行图7中的步骤5,图7中的步骤5同样可以有两种实现方式,可参考例1中的步骤4。
例4:
在例3中,RSU广播了自身使用的传输资源的信息(即第一信息),需要占用一定的D2D链路的广播信道资源。如果RSU的覆盖范围内没有终端设备存在,RSU照常进行广播,就会浪费广播资源。鉴于此,提供例4,可以节省广播资源。
同样的,在例4中,RSU可以处于接入网设备的覆盖范围内,但RSU可以自行独立调度资源,即自行独立调度第一传输资源,而无需接入网设备为RSU调度资源,RSU自行调度的第一传输资源可能是系统为RSU预先配置的该RSU向其他终端设备的D2D链路上传输数据的资源。该第一传输资源包括不限于第一传输资源占用的SA资源和Data资源位置,其中SA资源可以包含该SA资源的周期、频率位置、时域位置、及跳频模式等,Data资源位置可以包含Data资源的周期、频率位置、时域位置、及跳频模式等。比如RSU可以包括街头的红绿灯,等等。以接入网设备是基站为例。
在例2中,例如RSU的覆盖范围内起初没有终端设备,RSU可以不广播RSU自行调度的第一信息,因此RSU可以不从网络设备获取D2D链路广播信道的资源。当然如果RSU还需使用D2D链路广播信道进行其他操作,也可以从网络设备获取D2D链路广播信道的资源,获取方式可参考例1中的介绍。下面的步骤请参见图8。
图8的步骤1、2、3可分别参考例2的步骤2、3、4,图8的步骤4、5、6可分别参考例3的步骤3、4、5。
以上为对图2-图4所提供的技术方案的介绍。
另外,RSU通常是部署在道路上的静止的终端设备,其上行定时一般来说不会发生变化。然而根据现有技术,基站仍然需要不断地为RSU发送上行定时信息,这就造成了不必要的信令开销。为解决该问题,本发明实施例提供下面的方案。
请参见图9,基于同一发明构思,提供第一种上行同步方法,该方法的流程描述如下:
步骤901:第一终端设备向该第一终端设备所在的接入网设备发送用于请求建立连接的第二请求消息;第二请求消息携带用于指示该第一终端设备将始终处于静止状态的第三指示信息;
步骤902:该第一终端设备接收接入网设备发送的条件信息;
步骤903:第一终端设备根据条件信息判决第一终端设备是否出现了上行失步现象。
请参见图10,基于同一发明构思,提供第二种上行同步方法,该方法的流程描述如下:
步骤1001:接入网设备接收第一终端设备发送的用于请求建立连接的第二请求消息;第二请求消息携带用于指示该第一终端设备将始终处于静止状态的第三指示信息;
步骤1002:接入网设备向该第一终端设备发送条件信息;条件信息用于判决该第一终端设备是否出现了上行失步现象。
即,第一终端设备在向接入网设备发送第二请求消息时就可以告知接入网设备第一终端设备将始终处于静止状态,那么接入网设备只需向第一终端设备发送一次上行定时信息,节省信令开销。另外,接入网设备可以向第一终端设备发送条件信息,这样第一终端设备可以自行判决第一终端设备是否出现了上行失步现象,例如,若出现了上行失步现象,则第一终端设备可以及时地重新与接入网设备进行上行同步,这样,在节省信令开销的情况下,又可以尽量保证第一终端设备能够与接入网设备之间的上行同步,避免第一终端设备能够与接入网设备之间的通信过程受到影响。
图9和图10为相应的方法,下面一起进行介绍。
例5:
以接入网设备是基站、第一终端设备是RSU为例,在实际应用中不限于此。请参见图11。
1、RSU向基站发起连接请求,例如RSU向基站发送用于请求建立连接的第二请求消息。
可选的,第二请求消息中可以携带用于指示RSU将处于静止状态的指示信息,例如将该指示信息称为第三指示信息,比如第三指示信息可以占据1bit,表明该RSU不会移动。
可替换的,RSU在发送第二请求消息时也可以使用特殊的连接请求信元,以通过这种方式告知基站,该RSU不会移动。
2、基站根据RSU发送的第二请求消息,向RSU发送条件信息,该条件信息可以用于判决RSU是否出现了上行失步现象。
例如,条件信息可以包括门限值,RSU可以根据该门限值进行判断。条件信息可以包括不同的门限值,例如条件信息可以包括丢包数量门限值和/或时长门限值,下面举例介绍。
可选的,条件信息可以包括丢包数量门限值,该丢包数量门限值可以用于指示RSU发送给基站的允许的最大丢包数量,例如RSU如果确定发送给基站的丢包的数量大于或等于该丢包数量门限值,则RSU可以确定该RSU出现了上行失步现象。其中,在计算RSU的丢包数量时,可以计算RSU连续的丢包数量,或者也可以计算RSU在一定的时间段内的丢包数量。比如,一种可能的连续丢包数量门限值可以为3,如果RSU确定连续3个发送给基站的数据包的8次进行的混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)重传均失败,则RSU确定该RSU出现了上行失步现象。
可选的,条件信息可以包括时长门限值,时长门限值可以用于指示RSU接收的来自基站的信号在预定时间范围内的最大时间偏移量,如果RSU确定接收的来自基站的信号在预定时间范围内的时间偏移量大于或等于该时长门限值,则RSU确定该RSU出现了上行失步现象。预定时间范围可以由协议规定,或者也可以由设备自行设定,例如可以由RSU自行设定,或者也可以由基站预先为RSU设定,等等。例如时间偏移量是指全球导航卫星系统(Global Navigation Satellite System)测量时间与测量的基站下行同步的偏差,例如,如果RSU发现在经历了一定的时间后,之前使用锁确定的下行同步时间对应的GNSS时间与当前测量的基站下行同步位置对应的GNSS时间之间的偏差大
于配置的同步时间门限,则RSU确定出现了上行失步现象。
若条件信息包括多种门限值,则RSU可以分别根据不同的门限值进行判决。例如,若条件信息包括丢包数量门限值和时长门限值,则RSU可以按照上述方法分别根据丢包数量门限值和时长门限值进行判决,RSU可以在条件信息包括的任意一个门限值的判决符合上行失步的情况时确定该RSU出现上行失步现象,这样RSU可以选择较好判决的门限值进行判决,方便RSU进行操作,或者RSU也可以在条件信息包括的所有的门限值的判决均符合上行失步的情况时再确定该RSU出现上行失步现象,这样的判决方式更为准确。
可选的,条件信息还可以可以包含周期信息,该周期信息可以用于指示RSU经过多长时间判断一次是否出现上行失步。
可选的,该条件信息还可以包括不同的信息,不限于以上的举例,只要条件信息可以用于确定RSU是否出现了上行失步现象即可。
3、RSU接收基站发送的条件信息后,可以根据该条件信息包括的内容判决RSU是否出现了上行失步现象。其中,RSU可能不是每次进行判决时都需要重新接收条件信息,例如,RSU在确定自己的位置后,可以向基站发送第二请求消息,那么基站可以向RSU发送条件信息,之后,如果RSU的位置没有改变,则RSU可能不会再向基站发送第二请求消息,则基站也就不会再向RSU发送条件信息,或者例如,在基站向RSU发送了一次条件信息之后,如果条件信息没有发生改变,则基站可能不会再次向RSU发送条件信息,则RSU在每次进行判决时,都可以用之前接收的条件信息进行判决。如果未出现上行失步现象,则可以继续进行判断,如果出现了上行失步现象,则可以执行下面的步骤4。
可选的,RSU可以周期性进行判断,例如可以根据条件信息所携带的周期信息进行周期性判断,或者RSU也可以实时进行判断,等等。
4、RSU判断出现上行失步后,可以发起上行同步过程,以重新获得上行同步(比如可以重新获得上行提前量(Timing Advance,TA)),即重新与基站进行上行同步。
例如,在LTE系统中,RSU判断出现上行失步后,可以发起随机接入过程,以重新获得上行同步。当然,上行同步过程不限于随机接入过程,只要能够完成上行同步的过程均在本发明实施例的保护范围之内。
下面结合附图介绍本发明实施例提供的设备。
请参见图12,基于同一发明构思,提供第一种终端设备,该终端设备可以包括接收单元1201和确定单元1202。可选的,该终端设备还可以包括发送单元1203,在图12中一并示出。该终端设备可以用于执行上述图2-图8所述的方法,例如该终端设备可以是如前所述的第二终端设备,因此,对于该终端设备中的各单元所实现的功能等,可参考如前方法部分的描述,不多赘述。
请参见图13,为图12所示的终端设备的一种可能的实体结构示意图。在实际应用中,接收单元1201对应的实体设备可以是接收器1301,确定单元1202对应的实体设备可以是处理器1302,发送单元1203对应的实体设备可以是发送器1303。
其中,处理器1302例如可以包括中央处理器(CPU)或特定应用集成电路(Application Specific Integrated Circuit,ASIC),可以是一个或多个用于控制程序执行的集成电路,可以是使用现场可编程门阵列(Field Programmable Gate Array,FPGA)开发的硬件电路,可以是基带芯片。
接收器1301用于与外部设备进行网络通信,比如可以通过以太网、无线接入网、无线局域网等网络与外部设备进行通信。
发送器1303,发送器1303用于与外部设备进行网络通信,比如可以通过以太网、无线接入网、无线局域网等网络与外部设备进行通信。
这些接收器1301和发送器1303可以通过总线1304与处理器1302相连接,或者接收器1301和发送器1303也可以通过专门的连接线分别与处理器1302连接。图13以接收器1301和发送器1303均通过总线1304与处理器1302相连接为例。
通过对处理器1302进行设计编程,将前述所示的方法所对应的代码固化到芯片内,从而使芯片在运行时能够执行前述图2-图8所示的方法。如何对
处理器1302进行设计编程为本领域技术人员所公知的技术,这里不再赘述。
请参见图14,基于同一发明构思,提供第二种终端设备,该终端设备可以包括发送单元1401。可选的,该终端设备还可以包括接收单元1402和控制单元1403,均在图14中示出。
该终端设备可以用于执行上述图2-图8所述的方法,例如该终端设备可以是如前所述的第一终端设备,因此,对于该终端设备中的各单元所实现的功能等,可参考如前方法部分的描述,不多赘述。
请参见图15,为图14所示的终端设备的一种可能的实体结构示意图。在实际应用中,发送单元1401对应的实体设备可以是发送器1501,接收单元1402对应的实体设备可以是接收器1502,控制单元1403对应的实体设备可以是处理器1503。
其中,处理器1503例如可以包括CPU或ASIC,可以是一个或多个用于控制程序执行的集成电路,可以是使用FPGA开发的硬件电路,可以是基带芯片。
发送器1501用于与外部设备进行网络通信,比如可以通过以太网、无线接入网、无线局域网等网络与外部设备进行通信。
接收器1502,接收器1502用于与外部设备进行网络通信,比如可以通过以太网、无线接入网、无线局域网等网络与外部设备进行通信。
这些发送器1501和接收器1502可以通过总线1504与处理器1503相连接,或者发送器1501和接收器1502也可以通过专门的连接线分别与处理器1503连接。图15以发送器1501和接收器1502通过总线1504与处理器1503相连接为例。
通过对处理器1503进行设计编程,将前述所示的方法所对应的代码固化到芯片内,从而使芯片在运行时能够执行前述图2-图8所示的方法。如何对处理器1503进行设计编程为本领域技术人员所公知的技术,这里不再赘述。
请参见图16,基于同一发明构思,提供第一种接入网设备,该接入网设备可以包括发送单元1601和确定单元1602。可选的,该接入网设备还可以包
括接收单元1603,均在图16中示出。
该接入网设备可以用于执行上述图2-图8所述的方法,例如该接入网设备可以是如前所述的接入网设备,因此,对于该接入网设备中的各单元所实现的功能等,可参考如前方法部分的描述,不多赘述。
请参见图17,为图16所示的接入网设备的一种可能的实体结构示意图。在实际应用中,发送单元1601对应的实体设备可以是发送器1701,确定单元1602对应的实体设备可以是处理器1702,接收单元1603对应的实体设备可以是接收器1703。
其中,处理器1702例如可以包括CPU或ASIC,可以是一个或多个用于控制程序执行的集成电路,可以是使用FPGA开发的硬件电路,可以是基带芯片。
发送器1701用于与外部设备进行网络通信,比如可以通过以太网、无线接入网、无线局域网等网络与外部设备进行通信。
接收器1703,接收器1703用于与外部设备进行网络通信,比如可以通过以太网、无线接入网、无线局域网等网络与外部设备进行通信。
这些发送器1701和接收器1703可以通过总线1704与处理器1702相连接,或者发送器1701和接收器1703也可以通过专门的连接线分别与处理器1702连接。图17以发送器1701和接收器1703通过总线1704与处理器1702相连接为例。
通过对处理器1702进行设计编程,将前述所示的方法所对应的代码固化到芯片内,从而使芯片在运行时能够执行前述图2-图8所示的方法。如何对处理器1702进行设计编程为本领域技术人员所公知的技术,这里不再赘述。
请参见图18,基于同一发明构思,提供第三种终端设备,该终端设备可以包括发送单元1801、接收单元1802和判决单元1803。可选的,该终端设备还可以包括第一操作单元1804,可选的,该终端设备还可以包括第一确定单元1805和第二确定单元1806,以上各单元均在图18中示出。
该终端设备可以用于执行上述图9-图11所述的方法,例如该终端设备可以
是如前所述的第一终端设备,因此,对于该终端设备中的各单元所实现的功能等,可参考如前方法部分的描述,不多赘述。
请参见图19,为图18所示的终端设备的一种可能的实体结构示意图。在实际应用中,发送单元1801对应的实体设备可以是发送器1901,接收单元1802对应的实体设备可以是接收器1902,判决单元1803、第一操作单元1804、第一确定单元1805和第二确定单元1806对应的实体设备均可以是处理器1903。
发送器1901用于与外部设备进行网络通信,比如可以通过以太网、无线接入网、无线局域网等网络与外部设备进行通信。
接收器1902用于与外部设备进行网络通信,比如可以通过以太网、无线接入网、无线局域网等网络与外部设备进行通信。
处理器1903,处理器1903例如可以包括CPU或ASIC,可以是一个或多个用于控制程序执行的集成电路,可以是使用FPGA开发的硬件电路,可以是基带芯片。
这些发送器1901和接收器1902可以通过总线1904与处理器1903相连接,或者发送器1901和接收器1902也可以通过专门的连接线分别与处理器1903连接。图19以发送器1901和接收器1902通过总线1904与处理器1903相连接为例。
通过对处理器1903进行设计编程,将前述所示的方法所对应的代码固化到芯片内,从而使芯片在运行时能够执行前述图9-图11所示的方法。如何对处理器1903进行设计编程为本领域技术人员所公知的技术,这里不再赘述。
请参见图20,基于同一发明构思,提供第二种接入网设备,该接入网设备可以包括接收单元2001和发送单元2002。可选的,该接入网设备还可以包括第二操作单元2003,均在图20中示出。
该接入网设备可以用于执行上述图9-图11所述的方法,例如该接入网设备可以是如前所述的接入网设备,因此,对于该接入网设备中的各单元所实现的功能等,可参考如前方法部分的描述,不多赘述。
请参见图21,为图20所示的接入网设备的一种可能的实体结构示意图。
在实际应用中,接收单元2001对应的实体设备可以是接收器2102,发送单元2002对应的实体设备可以是发送器2101,第二操作单元2003对应的实体设备可以是处理器2103。
发送器2101用于与外部设备进行网络通信,比如可以通过以太网、无线接入网、无线局域网等网络与外部设备进行通信。
接收器2102用于与外部设备进行网络通信,比如可以通过以太网、无线接入网、无线局域网等网络与外部设备进行通信。
处理器2103,例如可以包括CPU或ASIC,可以是一个或多个用于控制程序执行的集成电路,可以是使用FPGA开发的硬件电路,可以是基带芯片。
这些发送器2101和接收器2102可以通过总线2104与处理器2103相连接,或者发送器2101和接收器2102也可以通过专门的连接线分别与处理器2103连接。图21以发送器2101和接收器2102通过总线2104与处理器2103相连接为例。
通过对处理器2103进行设计编程,将前述所示的方法所对应的代码固化到芯片内,从而使芯片在运行时能够执行前述图9-图11所示的方法。如何对处理器2103进行设计编程为本领域技术人员所公知的技术,这里不再赘述。
本发明实施例中,第一终端设备可以发送该第一终端设备所使用的传输资源(例如将第一终端设备使用的传输资源称为第一传输资源)的信息,这样收到该信息的其他终端设备可能就不会再使用第一传输资源,从而避免了碰撞情况的发生。而且,是由第一终端设备来发送第一信息,第一终端设备的覆盖范围一般来说比基站的覆盖范围小,即使第一终端设备广播第一信息,则接收第一信息的终端设备的数量一般来说也比接收基站广播的终端设备的数量少,则未接收到第一终端设备发送的第一信息的终端设备可以继续使用第一传输资源,尽量提高第一传输资源的利用率,减少资源浪费。并且,若第一终端设备发送第一信息的覆盖范围大于第一终端设备的通信范围,则只有位于第一终端设备的通信范围之外的终端设备才可能收不到第一信息,即这部分终端设备才能够使用第一传输资源,此时也不会与第一终端设备的传
输产生碰撞。即,通过采用本发明实施例提供的技术方案,在避免碰撞的情况下提高了资源的利用率。
在本发明中,应该理解到,所揭露的设备和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元或单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本发明实施例。
在本发明实施例中的各功能单元可以集成在一个处理单元中,或者各个单元也可以均是独立的物理模块。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:通用串行总线闪存盘(Universal Serial Bus flash drive)、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,以上实施例仅用以对本发明的技术方案进行了详细介绍,但以上实施例的说明只是用于帮助理解本发明实施例的方法,不应理解为对本发明实施例的限制。本技术领域的技术人员可轻易想到的变化或替换,都应涵盖在本发明实施例的保护范围之内。
Claims (54)
- 一种信息接收方法,其特征在于,包括:第二终端设备通过终端到终端D2D链路接收第一终端设备发送的第一信息;其中,所述第一信息用于指示第一传输资源,所述第一传输资源为所述第一终端设备所在的接入网设备为所述第一终端设备分配的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源,或所述第一传输资源为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源;所述第二终端设备根据所述第一信息确定所述第一传输资源是否为所述第二终端设备可选用的传输资源。
- 如权利要求1所述的方法,其特征在于,所述第一信息包括映射信息,所述映射信息用于指示:在所述接入网设备广播的传输资源中,所述接入网设备为所述第一终端设备分配的所述第一传输资源,所述第一传输资源为所述传输资源中的部分传输资源或者全部传输资源;或所述第一信息包括所述第一传输资源占用的调度分配资源位置和数据资源位置。
- 如权利要求1或2所述的方法,其特征在于,第二终端设备通过D2D链路接收第一终端设备发送的所述第一终端设备所使用的第一信息,包括:所述第二终端设备通过所述D2D链路接收所述第一终端设备广播的所述第一信息。
- 如权利要求1或2所述的方法,其特征在于,在第二终端设备通过D2D链路接收第一终端设备发送的所述第一终端设备使用的所述第一信息之前,还包括:所述第二终端设备向所述第一终端设备发送用于请求建立连接的第一请求消息;第二终端设备通过D2D链路接收第一终端设备发送的所述第一终端设备所使用的第一信息,包括:所述第二终端设备通过D2D链路接收所述第一终端设备发送的第一请求响应消息,所述第一请求响应消息携带所述第一信息。
- 如权利要求1-4任一所述的方法,其特征在于,所述方法还包括:所述第二终端设备还通过所述D2D链路接收所述第一终端设备发送的所述第一终端设备通过所述第一传输资源所进行的业务的优先级信息。
- 如权利要求5所述的方法,其特征在于,所述第二终端设备根据所述第一信息确定所述第一传输资源是否为可选用的传输资源,包括:所述第二终端设备根据所述第一终端设备通过所述第一传输资源所进行的业务的优先级信息以及所述第二终端设备所进行的业务的优先级信息,确定所述第一传输资源是否为可选用的传输资源。
- 如权利要求1-6任一所述的方法,其特征在于,所述方法还包括:所述第二终端设备接收所述第二终端设备所在的接入网设备广播的第二指示信息,所述第二指示信息用于指示所述第二终端设备停止向所述第一终端设备发送数据,或所述第二指示信息用于指示所述第二终端设备控制发送给所述第一终端设备的最大数据量;所述数据包括所述第二终端设备通过所述第一终端设备转发给所述接入网设备的数据;若所述第二指示信息用于指示所述第二终端设备停止向所述第一终端设备发送数据,则所述第二终端设备根据所述第二指示信息的指示,停止向所述第一终端设备发送数据;或,若所述第二指示信息用于指示所述第二终端设备控制发送给所述第一终端设备的最大数据量,则所述第二终端设备根据所述第二指示信息所指示的所述最大数据量控制发送给所述第一终端设备的数据量。
- 一种信息发送方法,其特征在于,包括:第一终端设备通过终端到终端D2D链路发送所述第一终端设备所使用的第一信息;其中,所述第一信息用于指示第一传输资源,所述第一传输资源 为所述第一终端设备所在的接入网设备为所述第一终端设备分配的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源,或所述第一传输资源为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源。
- 如权利要求8所述的方法,其特征在于,所述第一信息包括映射信息,所述映射信息用于指示:在所述接入网广播的传输资源中,所述接入网设备为所述第一终端设备分配的所述第一传输资源,所述第一传输资源为所述传输资源中的部分传输资源或者全部传输资源;或所述第一信息包括所述第一传输资源占用的调度分配资源位置和数据资源位置。
- 如权利要求8或9所述的方法,其特征在于,所述第一终端设备通过D2D链路发送所述第一终端设备所使用的第一信息,包括:所述第一终端设备通过所述D2D链路广播所述第一信息。
- 如权利要求10所述的方法,其特征在于,所述方法还包括:所述第一终端设备还通过所述D2D链路广播所述第一终端设备通过所述第一传输资源所传输的业务的优先级信息。
- 如权利要求8或9所述的方法,其特征在于,若所述第一传输资源包括为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源,则在第一终端设备通过D2D链路发送所述第一终端设备所使用的第一信息之前,还包括:所述第一终端设备将所述第一信息发送给所述第一终端设备所在的接入网设备,以指示所述接入网设备停止将所述第一传输资源分配给所述接入网设备覆盖范围内的其他终端设备;所述第一终端设备接收所述接入网设备发送的第二传输资源的信息,以确定所述接入网设备已停止将所述第二传输资源分配给所述接入网设备覆盖范围内的其他终端设备;所述第二传输资源为所述第一传输资源包括的部分 传输资源或全部传输资源。
- 如权利要求8或9所述的方法,其特征在于,在第一终端设备通过D2D链路发送所述第一终端设备所使用的第一信息之前,还包括:所述第一终端设备接收第二终端设备发送的用于请求建立连接的第一请求消息;第一终端设备通过D2D链路发送所述第一终端设备所使用的第一信息,包括:所述第一终端设备通过所述D2D链路向所述第二终端设备发送第一请求响应消息,所述第一请求响应消息携带所述第一信息。
- 如权利要求13所述的方法,其特征在于,所述第一请求响应消息还携带所述第一终端设备通过所述第一传输资源所进行的业务的优先级信息。
- 如权利要求8-14任一所述的方法,其特征在于,所述方法还包括:所述第一终端设备接收所述第一终端设备所在的接入网设备发送的第一指示信息,所述第一指示信息用于指示所述第一终端设备停止向所述接入网设备转发数据,或所述第一指示信息用于指示所述第一终端设备控制转发给所述接入网设备的最大数据量;所述数据包括其他终端设备通过所述第一终端设备转发给所述接入网设备的数据;若所述第一指示信息用于指示所述第一终端设备停止向所述接入网设备发送数据,则所述第一终端设备根据所述第一指示信息的指示,停止向所述接入网设备发送数据;或,若所述第一指示信息用于指示所述第一终端设备控制发送给所述接入网设备的最大数据量,则所述第一终端设备根据所述第一指示信息所指示的所述最大数据量控制发送给所述接入网设备的数据量。
- 一种数据发送指示方法,其特征在于,包括:接入网设备确定通过第一终端设备转发给所述接入网设备的数据量大于等于第一阈值;所述接入网设备发送指示信息,所述指示信息用于控制所述第一终端设 备转发给所述接入网设备的数据量。
- 如权利要求16所述的方法,其特征在于,所述接入网设备发送指示信息,包括:所述接入网设备向所述第一终端设备发送第一指示信息,所述第一指示信息用于指示所述第一终端设备停止向所述接入网设备转发数据,或所述第一指示信息用于指示所述第一终端设备控制转发给所述接入网设备的最大数据量;所述数据包括其他终端设备通过所述第一终端设备转发给所述接入网设备的数据。
- 如权利要求16所述的方法,其特征在于,所述接入网设备发送指示信息,包括:所述接入网设备向所述接入网设备覆盖范围内的终端设备发送第二指示信息,所述第二指示信息用于指示所述接入网设备覆盖范围内的终端设备停止向所述第一终端设备发送数据,或所述第二指示信息用于指示所述接入网设备覆盖范围内的终端设备控制发送给所述第一终端设备的最大数据量;所述数据包括所述接入网设备覆盖范围内的终端设备通过所述第一终端设备转发给所述接入网设备的数据。
- 如权利要求16-18任一所述的方法,其特征在于,所述方法还包括:所述接入网设备接收第一终端设备发送的第一信息;所述第一传输资源包括为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的终端到终端D2D链路上传输数据的资源;所述接入网设备确定停止将第二传输资源分配给所述接入网设备覆盖范围内的其他终端设备;所述第二传输资源为所述第一传输资源包括的部分传输资源或全部传输资源;所述接入网设备将所述第二传输资源的信息发送给所述第一终端设备。
- 一种上行同步方法,其特征在于,包括:第一终端设备向所述第一终端设备所在的接入网设备发送用于请求建立连接的第二请求消息;所述第二请求消息携带用于指示所述第一终端设备将 始终处于静止状态的第三指示信息;所述第一终端设备接收所述接入网设备发送的条件信息;所述第一终端设备根据所述条件信息判决所述第一终端设备是否出现了上行失步现象。
- 如权利要求20所述的方法,其特征在于,在所述第一终端设备根据所述条件信息判决所述第一终端设备是否出现了上行失步现象之后,还包括:若所述第一终端设备根据所述条件信息确定所述第一终端设备出现了上行失步现象,则所述第一终端设备发起上行同步过程,以重新与所述接入网设备进行上行同步。
- 如权利要求20或21所述的方法,其特征在于,所述条件信息包括时长门限值或丢包数量门限值;所述时长门限值用于指示所述第一终端设备接收的来自所述接入网设备的信号在预定时间范围内的最大时间偏移量,所述丢包数量门限值用于指示所述第一终端设备发送给所述接入网设备的最大丢包数量。
- 如权利要求22所述的方法,其特征在于,若所述条件信息包括所述时长门限值,则所述第一终端设备根据所述条件信息判决所述第一终端设备是否出现了上行失步现象,包括:所述第一终端设备确定接收的来自所述接入网设备的信号的时间偏移量大于或等于所述时长门限值;所述第一终端设备确定所述第一终端设备出现上行失步现象。
- 如权利要求22所述的方法,其特征在于,若所述条件信息包括所述丢包数量门限值,则所述第一终端设备根据所述条件信息判决所述第一终端设备是否出现了上行失步现象,包括:所述第一终端设备确定发送给所述接入网设备的丢包数量大于或等于所述丢包数量门限值;所述第一终端设备确定所述第一终端设备出现上行失步现象。
- 一种上行同步方法,其特征在于,包括:接入网设备接收第一终端设备发送的用于请求建立连接的第二请求消息;所述第二请求消息携带用于指示所述第一终端设备将始终处于静止状态的第三指示信息;所述接入网设备向所述第一终端设备发送条件信息;所述条件信息用于判决所述第一终端设备是否出现了上行失步现象。
- 如权利要求25所述的方法,其特征在于,所述条件信息包括时长门限值或丢包数量门限值;所述时长门限值用于指示所述第一终端设备接收的来自所述接入网设备的信号在预定时间范围内的最大时间偏移量,所述丢包数量门限值用于指示所述第一终端设备发送给所述接入网设备的最大丢包数量。
- 如权利要求25或26所述的方法,其特征在于,在所述接入网设备向所述第一终端设备发送条件信息之后,还包括:所述接入网设备接收所述第一终端设备发起的上行同步过程,以重新与所述第一终端设备进行上行同步。
- 一种终端设备,其特征在于,包括:接收单元,用于通过终端到终端D2D链路接收第一终端设备发送的第一信息;其中,所述第一信息用于指示第一传输资源,所述第一传输资源为所述第一终端设备所在的接入网设备为所述第一终端设备分配的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源,或所述第一传输资源为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源;确定单元,用于根据所述第一信息确定所述第一传输资源是否为所述终端设备可选用的传输资源。
- 如权利要求28所述的终端设备,其特征在于,所述第一信息包括映射信息,所述映射信息用于指示:在所述接入网设备广播的传输资源中,所述接入网设备为所述第一终端设备分配的所述第一传输资源,所述第一传输资源为所述传输资源中的部分传输资源或者全部传 输资源;或所述第一信息包括所述第一传输资源占用的调度分配资源位置和数据资源位置。
- 如权利要求28或29所述的终端设备,其特征在于,所述接收单元用于:通过所述D2D链路接收所述第一终端设备广播的所述第一信息。
- 如权利要求28或29所述的终端设备,其特征在于,所述终端设备还包括发送单元;所述发送单元用于:在所述接收单元通过D2D链路接收第一终端设备发送的所述第一终端设备使用的所述第一信息之前,向所述第一终端设备发送用于请求建立连接的第一请求消息;所述接收单元用于:通过D2D链路接收所述第一终端设备发送的第一请求响应消息,所述第一请求响应消息携带所述第一信息。
- 如权利要求28-31任一所述的终端设备,其特征在于,所述接收单元还用于:通过所述D2D链路接收所述第一终端设备发送的所述第一终端设备通过所述第一传输资源所进行的业务的优先级信息。
- 如权利要求32所述的终端设备,其特征在于,所述确定单元用于:根据所述第一终端设备通过所述第一传输资源所进行的业务的优先级信息以及所述第二终端设备所进行的业务的优先级信息,确定所述第一传输资源是否为可选用的传输资源。
- 如权利要求28-33任一所述的终端设备,其特征在于,所述终端设备还包括发送单元;所述接收单元还用于:接收所述终端设备所在的接入网设备广播的第二指示信息,所述第二指示信息用于指示所述终端设备停止向所述第一终端设备发送数据,或所述第二指示信息用于指示所述终端设备控制发送给所述第一终端设备的最大数据量;所述数据包括所述终端设备通过所述第一终端设 备转发给所述接入网设备的数据;所述确定单元还用于:若所述第二指示信息用于指示所述终端设备停止向所述第一终端设备发送数据,则根据所述第二指示信息的指示,令所述发送单元停止向所述第一终端设备发送数据;或,若所述第二指示信息用于指示所述终端设备控制发送给所述第一终端设备的最大数据量,则根据所述第二指示信息所指示的所述最大数据量控制发送给所述接入网设备的数据量。
- 一种终端设备,其特征在于,包括:发送单元,用于通过终端到终端D2D链路发送所述第一终端设备所使用的第一信息;其中,所述第一传输资源为所述第一终端设备所在的接入网设备为所述第一终端设备分配的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源,或所述第一传输资源为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源。
- 如权利要求35所述的终端设备,其特征在于,所述第一信息包括映射信息,所述映射信息用于指示:在所述接入网广播的传输资源中,所述接入网设备为所述终端设备分配的所述第一传输资源,所述第一传输资源为所述传输资源中的部分传输资源或者全部传输资源;或所述第一信息包括所述第一传输资源占用的调度分配资源位置和数据资源位置。
- 如权利要求35或36所述的终端设备,其特征在于,所述发送单元用于:通过所述D2D链路广播所述第一信息。
- 如权利要求37所述的终端设备,其特征在于,所述发送单元还用于:通过所述D2D链路广播所述终端设备通过所述第一传输资源所传输的业务的优先级信息。
- 如权利要求35或36所述的终端设备,其特征在于,所述终端设备还包括接收单元;若所述第一传输资源包括为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的D2D链路上传输数据的资源,则:所述发送单元还用于:在通过D2D链路发送所述第一信息之前,将所述第一信息发送给所述终端设备所在的接入网设备,以指示所述接入网设备停止将所述第一传输资源分配给所述接入网设备覆盖范围内的其他终端设备;所述接收单元用于:接收所述接入网设备发送的第二传输资源的信息,以确定所述接入网设备已停止将所述第二传输资源分配给所述接入网设备覆盖范围内的其他终端设备;所述第二传输资源为所述第一传输资源包括的部分传输资源或全部传输资源。
- 如权利要求35或36所述的终端设备,其特征在于,所述终端设备还包括接收单元;所述接收单元用于:在所述发送单元通过D2D链路发送所述第一信息之前,接收第二终端设备发送的用于请求建立连接的第一请求消息;所述发送单元还用于:通过所述D2D链路向所述第二终端设备发送第一请求响应消息,所述第一请求响应消息携带所述第一信息。
- 如权利要求40所述的终端设备,其特征在于,所述第一请求响应消息还携带所述第一终端设备通过所述第一传输资源所进行的业务的优先级信息。
- 如权利要求35-41任一所述的终端设备,其特征在于,所述终端设备还包括接收单元及控制单元;所述接收单元用于:接收所述终端设备所在的接入网设备发送的第一指示信息,所述第一指示信息用于指示所述第一终端设备停止向所述接入网设备转发数据,或所述第一指示信息用于指示所述第一终端设备控制转发给所述接入网设备的最大数据量;所述数据包括其他终端设备通过所述第一终端设备转发给所述接入网设备的数据;所述控制单元用于:若所述第一指示信息用于指示所述终端设备停止向所述接入网设备发送数据,则根据所述第一指示信息的指示,令所述发送单元停止向所述接入网设备发送数据;或,若所述第一指示信息用于指示所述终端设备控制发送给所述接入网设备的最大数据量,则根据所述第一指示信 息所指示的所述最大数据量控制发送给所述接入网设备的数据量。
- 一种接入网设备,其特征在于,包括:确定单元,用于确定通过第一终端设备转发给所述接入网设备的数据量大于等于第一阈值;发送单元,用于发送指示信息,所述指示信息用于控制所述第一终端设备转发给所述接入网设备的数据量。
- 如权利要求43所述的接入网设备,其特征在于,所述发送单元用于:向所述第一终端设备发送第一指示信息,所述第一指示信息用于指示所述第一终端设备停止向所述接入网设备转发数据,或所述第一指示信息用于指示所述第一终端设备控制转发给所述接入网设备的最大数据量;所述数据包括其他终端设备通过所述第一终端设备转发给所述接入网设备的数据。
- 如权利要求43所述的接入网设备,其特征在于,所述发送单元用于:向所述接入网设备覆盖范围内的终端设备发送第二指示信息,所述第二指示信息用于指示所述接入网设备覆盖范围内的终端设备停止向所述第一终端设备发送数据,或所述第二指示信息用于指示所述接入网设备覆盖范围内的终端设备控制发送给所述第一终端设备的最大数据量;所述数据包括所述接入网设备覆盖范围内的终端设备通过所述第一终端设备转发给所述接入网设备的数据。
- 如权利要求43-45任一所述的接入网设备,其特征在于,所述接入网设备还包括接收单元;所述接收单元用于:接收第一终端设备发送的第一信息;所述第一传输资源包括为所述第一终端设备预先配置的所述第一终端设备和其他终端设备的终端到终端D2D链路上传输数据的资源;所述确定单元还用于:确定停止将第二传输资源分配给所述接入网设备覆盖范围内的其他终端设备;所述第二传输资源为所述第一传输资源包括的部分传输资源或全部传输资源;所述发送单元还用于:将所述第二传输资源的信息发送给所述第一终端 设备。
- 一种终端设备,其特征在于,包括:发送单元,用于向所述终端设备所在的接入网设备发送用于请求建立连接的第二请求消息;所述第二请求消息携带用于指示所述终端设备将始终处于静止状态的第三指示信息;接收单元,用于接收所述接入网设备发送的条件信息;所述条件信息用于判决所述终端设备是否出现了上行失步现象;判决单元,用于根据所述条件信息判决所述终端设备是否出现了上行失步现象。
- 如权利要求47所述的终端设备,其特征在于,所述终端设备还包括第一操作单元,用于:在所述判决单元根据所述条件信息判决所述终端设备是否出现了上行失步现象之后,若所述判决单元确定所述第一终端设备出现了上行失步现象,则发起上行同步过程,以重新与所述接入网设备进行上行同步。
- 如权利要求47或48所述的终端设备,其特征在于,所述条件信息包括时长门限值或丢包数量门限值;所述时长门限值用于指示所述第一终端设备接收的来自所述接入网设备的信号在预定时间范围内的最大时间偏移量,所述丢包数量门限值用于指示所述第一终端设备发送给所述接入网设备的最大丢包数量。
- 如权利要求49所述的终端设备,其特征在于,所述终端设备还包括第一确定单元和第二确定单元;若所述条件信息包括所述时长门限值,则:所述第一确定单元用于:在所述接收单元接收所述接入网设备发送的条件信息之后,确定接收的来自所述接入网设备的信号的时间偏移量大于或等于所述时长门限值;所述第二确定单元用于:确定所述第一终端设备出现上行失步现象。
- 如权利要求49所述的终端设备,其特征在于,所述终端设备还包括第一确定单元和第二确定单元;若所述条件信息包括所述丢包数量门限值, 则:所述第一确定单元用于:在所述接收单元接收所述接入网设备发送的条件信息之后,确定发送给所述接入网设备的丢包数量大于或等于所述丢包数量门限值;所述第二确定单元用于:确定所述第一终端设备出现上行失步现象。
- 一种接入网设备,其特征在于,包括:接收单元,用于接收第一终端设备发送的用于请求建立连接的第二请求消息;所述第二请求消息携带用于指示所述第一终端设备将始终处于静止状态的第三指示信息;发送单元,用于向所述第一终端设备发送条件信息;所述条件信息用于判决所述第一终端设备是否出现了上行失步现象。
- 如权利要求52所述的接入网设备,其特征在于,所述条件信息包括时长门限值或丢包数量门限值;所述时长门限值用于指示所述第一终端设备接收的来自所述接入网设备的信号在预定时间范围内的最大时间偏移量,所述丢包数量门限值用于指示所述第一终端设备发送给所述接入网设备的最大丢包数量。
- 如权利要求52或53所述的接入网设备,其特征在于,所述接入网设备还包括第二操作单元,用于:在所述发送单元向所述第一终端设备发送条件信息之后,接收所述第一终端设备发起的上行同步过程,以重新与所述第一终端设备进行上行同步。
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CN104519577A (zh) * | 2013-09-27 | 2015-04-15 | 中兴通讯股份有限公司 | 通信资源管理方法、设备及系统 |
CN104754748A (zh) * | 2013-12-27 | 2015-07-01 | 电信科学技术研究院 | 一种d2d资源分配方法、数据传输方法及装置 |
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CN111836183A (zh) * | 2019-04-12 | 2020-10-27 | 北京大唐高鸿数据网络技术有限公司 | 发送资源池的选择方法、装置及车载单元 |
CN111836183B (zh) * | 2019-04-12 | 2023-04-07 | 中信科智联科技有限公司 | 发送资源池的选择方法、装置及车载单元 |
CN113783667A (zh) * | 2021-01-05 | 2021-12-10 | 北京沃东天骏信息技术有限公司 | 信息传输方法、装置、计算机系统和计算机可读存储介质 |
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