WO2017113130A1 - 一种资源请求方法、设备、网络侧节点及*** - Google Patents
一种资源请求方法、设备、网络侧节点及*** Download PDFInfo
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- WO2017113130A1 WO2017113130A1 PCT/CN2015/099606 CN2015099606W WO2017113130A1 WO 2017113130 A1 WO2017113130 A1 WO 2017113130A1 CN 2015099606 W CN2015099606 W CN 2015099606W WO 2017113130 A1 WO2017113130 A1 WO 2017113130A1
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- relay device
- network side
- message
- side node
- target device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a resource request method, device, network side node, and system.
- D2D communication technology is a technology that enables direct communication between short-distance user equipment without third-party communication. It can improve spectrum utilization, reduce the burden on cellular networks, increase bit rate, etc., and can support new small-scale peer-to-peer data services. Therefore, D2D communication plays a very important role in the evolution of future communication networks.
- the device A can directly transmit the data to the device B under the coverage of the same base station; if the device A does not have the data transmission resource, the device A needs to request the base station. Allocate data transmission resources for it. If the available power of the device A is too low or it is an energy-sensitive device, the method of requesting the data transmission resource directly to the base station by the existing method further accelerates the energy consumption of the device A.
- the embodiments of the present invention provide a resource request method, a device, a network side node, and a system, which can reduce the energy consumption of the sending device while the transmitting device obtains the transmission resource.
- a first aspect of the embodiments of the present invention provides a resource request method, including:
- the relay device Receiving, by the relay device, the first target device message sent by the target device, where the first target device message is used to trigger the relay device to request the network side node to allocate a data transmission resource to the target device;
- the relay device sends a first relay device message to the network side node according to the first target device message, where the first relay device message is used to trigger the network side node to send the first message to the target device.
- An authorization information where the first authorization information includes the data transmission resource allocated by the network side node to the target device;
- the data transmission resource is used by the target device to transmit data to be transmitted.
- the relay device replaces the target device with the network side node
- the point application target device is configured to transmit the data transmission resource of the data to be transmitted, and the target device does not need to apply directly to the network side node, so that the target device can obtain the data transmission resource and can reduce The energy consumption of the target device.
- the network side node is configured to send the target device to the relay device in advance.
- the resource of the first target device message that is, the D2D link buffer status report resource
- the relay device directly receives the first target that is sent by the target device by using the D2D link buffer status report resource.
- the device message is required to reduce the processing step of the relay device by requesting the network side node to configure the D2D link buffer status report resource for the target device.
- the relay device detects whether the D2D link buffer status report resource exists. Data, and when it is detected that the data exists on the D2D link buffer status report resource, determining that the message received by the relay device is the first target device message, instead of other messages sent by the target device In order to trigger the relay device to send the first relay device message to the network side node.
- the relay device detects whether a first preset logical channel exists in the D2D logical channel identifier. Identifying, and detecting that the first preset logical channel identifier exists, determining that the message received by the relay device is the first target device message, instead of other messages sent by the target device, to trigger Sending, by the relay device, the first relay device message to the network side node;
- the first preset logical channel identifier is an identifier set for the first target device message on the D2D link shared channel in the D2D communication standard protocol.
- the network side node is not configured for the target device to be used for the relay device.
- the second authorization information includes the D2D link buffer status report resource configured by the network side node for the target device;
- the D2D link buffer status report resource is used by the target device to send the first target device message to the relay device.
- the relay device in place of the target device, applies, to the network side node, the D2D link buffer status report resource, so that the target is The device can send the first target device message to the relay device by using the D2D link buffer status report resource.
- the relay device detects whether data exists on the resource for transmitting the D2D link request message. And detecting that the message received by the relay device is the second target device message, instead of other messages sent by the target device, in order to trigger the presence of the data on the D2D link request message resource.
- the relay device sends the second relay device message to the network side node.
- a sixth possible implementation manner of the first aspect of the embodiment of the present invention if the network side node is in advance
- the relay device configures a resource for sending the first relay device message to the network side node, that is, an extended buffer status report resource, and the relay device reports the resource directly through the extended buffer status.
- the network side node sends the first relay device message, and the relay device does not need to apply to the network side node for the extended buffer status report resource, and reduces the processing steps of the relay device.
- a seventh possible implementation manner of the first aspect of the embodiments of the present invention if the network side node is not in advance
- the relay device is configured to send the resource of the first relay device message to the network side node, that is, the extended buffer status report resource, before the relay device sends the first relay device message. , perform the following steps:
- the relay device sends a third relay device message to the network side node, where the third relay device message request message is used to request the network side node to configure an extended buffer shape for the relay device.
- State reporting resources
- the relay device receives the third resource authorization information sent by the network side node, where the third resource authorization information includes the extended buffer status report resource configured by the network side node for the relay device.
- the seventh possible implementation manner of the first aspect of the first aspect of the present invention the implementing, by the relay device, applying, to the network side node, the extended buffer status report resource, so that the relay device can pass the extension
- the buffer status report resource sends the first relay device message to the network side node.
- the relay device is configured according to the first target device message, And sending, by the extended buffer status report resource, the first relay device message to the network side node.
- the first relay device message is used in combination with the first to the eighth possible implementation manners of the first aspect of the embodiment of the present invention. And triggering, by the network side node, to send fourth authorization information to the relay device;
- the relay device After the relay device sends the first relay device message to the network side node according to the first target device message, performing the following steps:
- the relay device receives the fourth authorization information that is sent by the network side node, where the fourth authorization information includes a data forwarding resource allocated by the network side node for the relay device, and the data forwarding resource is used by the And forwarding, by the relay device, the data to be transmitted, so that the relay device forwards the data to be transmitted to the network side node by using the data forwarding resource.
- a second aspect of the embodiments of the present invention provides another resource requesting method, including:
- the target device sends a first target device message to the relay device, where the first target device message is used to trigger the relay device to request the network side node to allocate a data transmission resource to the target device;
- the data transmission resource is used by the target device to transmit data to be transmitted.
- the target device requests the relay device to apply to the network side node for the data transmission resource for transmitting the data to be transmitted, which is directly compared to the target device.
- the network side node reduces the transmission of the target device by applying the data transmission resource Shoot energy consumption.
- the target device in a first possible implementation manner of the second aspect of the embodiment of the present invention, if the network side node is configured in advance for the target device to send to the relay device
- the resource of the first target device message that is, the D2D link buffer status report resource
- the target device directly sends the first target device to the relay device by using the D2D link buffer status report resource.
- the message does not need to be requested by the target device to request the relay device to apply for the D2D link buffer status report resource to the network side node, and reduce the processing steps of the relay device.
- the network side node if the network side node is not configured in advance for the target device to send to the relay device, the resource of the first target device message, that is, the D2D link buffer status report resource, before the target device sends the first target device message to the relay device, perform the following steps:
- a second possible implementation manner of the second aspect of the embodiment of the present invention is to enable the target device to request the relay device to apply for the D2D link buffer status report resource to the network side node instead, so that the The target device can send the first target device message to the relay device by using the D2D link buffer status report resource.
- the target device passes the D2D link
- the buffer status report resource sends a first target device message to the relay device.
- a third aspect of the embodiments of the present invention provides another resource requesting method, including:
- the network side node receives the first relay device message sent by the relay device, where the first relay device message is used to trigger the network side node to send the first authorization information to the target device;
- the network side node sends the first authorization information to the target device according to the first relay device message, where the first authorization information includes the number allocated by the network side node to the target device. According to transmission resources;
- the data transmission resource is used by the target device to transmit data to be transmitted.
- the network side node allocates the data transmission resource to the target device according to the first relay device message sent by the relay device, and is not based on the message sent by the target device. Allocating the data transmission resource thereto, ensuring that the target device acquires the data transmission resource while reducing the transmission energy consumption of the target device.
- the target device if the network side node is not previously configured for the target device, the target device is configured to The relay device sends the resource of the first target device message, that is, the D2D link buffer status report resource, and the network side node further performs the following before receiving the first relay device message sent by the relay device. step:
- the second authorization information includes a D2D link buffer status report resource configured by the network side node for the target device;
- the D2D link buffer status report resource is used by the target device to send a first target device message to the relay device.
- a first possible implementation manner of the third aspect of the embodiment of the present invention is to enable the network side node to configure the D2D link for the relay device according to the second relay device message sent by the relay device.
- the buffer status reports a resource, so that the target device sends the first target device message to the network side node.
- the network side node detects whether data exists on the extended request message resource. And detecting that the message received by the network side node is the second relay device message, instead of other messages sent by the relay device, when the data is found on the extension request message resource, and triggering The network side node sends the second authorization information to the target device.
- the relay device configures a resource for sending the first relay device message to the network side node, that is, When the buffer status report resource is extended, the network side node directly receives the first relay device message sent by the relay device, so as to trigger the network side node to use the first relay device message as described.
- the target device allocates the data transmission resource.
- the network side node detects the expansion buffer Whether the data is present on the area status report resource, and when it is detected that the data exists on the extended buffer status report resource, determining that the message received by the network side node is the first relay device message, instead of the And sending, by the network side node, the first authorization information to the target device.
- the network side node detects the logical channel identifier in the manner of the first to the third possible implementation of the third aspect of the embodiment of the present invention. Whether there is a second preset logical channel identifier, and when it is detected that the second preset logical channel identifier exists, determining that the message received by the network side node is the first relay device message, instead of the And sending, by the network side node, the first authorization information to the target device;
- the second preset logical channel identifier is an identifier set by the D2D communication standard protocol for the extended buffer status report on the uplink shared channel.
- the relay device is configured to send the resource of the first relay device message to the network side node, that is, the extended buffer status report resource, where the network side node receives the Before the first relay device message, the following steps are also performed:
- the extended buffer status report resource is used by the relay device to send a first relay device message to the network side node.
- the sixth possible implementation manner of the third aspect of the embodiment of the present invention implements the network side node Configuring the extended buffer status report resource for the relay device according to the third relay device message sent by the relay device, so that the relay device sends the first medium to the network side node Following the device message.
- the first relay device message is further used. And triggering, by the network side node, to send fourth authorization information to the relay device;
- the network side node Before the network side node sends the first authorization information to the target device according to the first relay device message, or simultaneously, or after, performing the following steps:
- the network side node sends the fourth authorization information to the relay device according to the first relay device message, where the fourth authorization information includes data forwarding that is allocated by the network side node to the relay device. And the data forwarding resource is used by the relay device to forward the to-be-transmitted data, so that the relay device forwards the to-be-transmitted data to the network-side node by using the data forwarding resource.
- a fourth aspect of the embodiments of the present invention provides a relay device, including:
- a report receiving unit configured to receive a first target device message sent by the target device, where the first target device message is used to trigger the relay device to request the network side node to allocate a data transmission resource to the target device;
- a message sending unit configured to send, by using the first target device message, a first relay device message to the network side node, where the first relay device message is used to trigger the network side node to send to the target device a first authorization information, where the first authorization information includes the data transmission resource allocated by the network side node to the target device;
- the data transmission resource is used by the target device to transmit data to be transmitted.
- the relay device provided by the fourth aspect of the embodiments of the present invention is used to implement the resource requesting method provided by the first aspect of the embodiments of the present invention, and details are not described herein again.
- a fifth aspect of the embodiments of the present invention provides a target device, including:
- a message sending unit configured to send a first target device message to the relay device, where the first target device message is used to trigger the relay device to request the network side node to allocate a data transmission resource to the target device;
- an authorization information receiving unit configured to receive the first authorization information that is sent by the network side node, where the first authorization information includes the data transmission resource that is allocated by the network side node to the target device;
- the data transmission resource is used by the target device to transmit data to be transmitted.
- the target device provided by the fifth aspect of the embodiments of the present invention is used to implement the resource requesting method provided by the second aspect of the embodiments of the present invention, and details are not described herein again.
- a sixth aspect of the embodiments of the present invention provides a network side node, including:
- a report receiving unit configured to receive a first relay device message sent by the relay device, where the first relay device message is used to trigger the network side node to send the first authorization information to the target device;
- An authorization information sending unit configured to send the first authorization information to the target device according to the first relay device message, where the first authorization information includes data transmission allocated by the network side node to the target device Resource
- the data transmission resource is used by the target device to transmit data to be transmitted.
- the target device provided by the sixth aspect of the embodiments of the present invention is used to implement the resource requesting method provided by the third aspect of the embodiments of the present invention, and details are not described herein again.
- a seventh aspect of the embodiments of the present invention provides a resource requesting system, including the relay device according to the fourth aspect, the target device according to the fifth aspect, and the network side node according to the sixth aspect, where the relay device and The target device is in a network coverage area of the network side node, and the target device is a power limited device, and the relay device is a device with unlimited power.
- the first target device message is sent to the relay device by the target device; when receiving the first target device message, the relay device sends the first relay device message to the network side node according to the first target device message.
- the network side node receives the first relay device message, and sends the first authorization information to the target device according to the first relay device message, where the first authorization information includes a data transmission resource allocated by the network side node to the target device, and the relay device is replaced.
- the target device requests the data transmission resource from the network side node, and the target device does not need to directly request the data transmission resource from the network side node, thereby reducing the transmission energy consumption of the target device and ensuring that the target device obtains the transmission resource.
- 1 is a network architecture diagram of D2D communication under an LTE system architecture
- FIG. 2 is a schematic flowchart of a resource request method according to Embodiment 1 of the present invention.
- FIG. 3 is a schematic flowchart of a resource request method according to Embodiment 2 of the present invention.
- FIG. 4 is a schematic flowchart of a resource request method according to Embodiment 3 of the present invention.
- FIG. 5 is a schematic structural diagram of a relay device according to an embodiment of the present disclosure.
- FIG. 6 is a schematic structural diagram of a target device according to an embodiment of the present disclosure.
- FIG. 7 is a schematic structural diagram of a network side node according to an embodiment of the present disclosure.
- FIG. 8 is a schematic structural diagram of another relay device according to an embodiment of the present disclosure.
- FIG. 9 is a schematic structural diagram of another target device according to an embodiment of the present disclosure.
- FIG. 10 is a schematic structural diagram of another network side node according to an embodiment of the present invention.
- the embodiment of the present invention provides a resource request method, a device, a network side node, and a system.
- the transmitting device that can be applied to the D2D communication in the co-site coverage requests the relay device to request the resource from the network side instead of the sending device, and receives the network side allocation.
- the scene of the resource that is, the relay device and the sending device are within the network coverage of the same network side.
- the resource request method, device, and network side node and system provided by the embodiments of the present invention may be applied to D2D communication of a common station coverage in a Long Term Evolution (LTE) system, an LTE-A system, or a future possible mobile communication system. in.
- LTE Long Term Evolution
- the embodiment of the present invention is mainly directed to a scenario in which a transmitting device in a D2D communication in a LTE system that requests a relay device requests a relay device to request a resource from a network side and receives a resource allocated on the network side.
- FIG. 1 a network architecture diagram of D2D communication for co-site coverage in an LTE system architecture, where the base station is an evolved Node B (eNB), and UE1, UE2, and UE3 are under eNB network coverage.
- eNB evolved Node B
- the user equipment can perform data transmission with the eNB, and the user can directly perform data transmission.
- the eNB needs to be requested to allocate data transmission resources for normal data transmission.
- the user equipment consumes a certain amount of power of the user equipment in the process of sending a request to the eNB. If the user equipment is sensitive to energy consumption or limited in power consumption, the method of directly requesting the data transmission resource from the eNB in the foregoing manner further accelerates the consumption speed of the user equipment.
- the resource request method provided by the embodiment of the present invention for a user equipment that is limited in power consumption or sensitive to energy consumption, does not directly request data transmission resources from the eNB, but searches for a relay device to request the data transmission resource from the eNB instead of the user equipment. And receiving resources allocated by the eNB, thereby saving transmission energy consumption of the user equipment.
- the target device in the embodiment of the present invention is a transmitting device that requires a data transmission resource, and may include, but is not limited to, a user device that is limited in power and has a communication function, such as a wristband, a watch, or a smart wearable device, and the target device may further include A mobile phone or tablet (Pad) with limited power. It can be understood that the target device with limited power needs to be frequently charged by the user of the target device, otherwise the remaining power of the target device will affect the normal communication of the target device user.
- the relay device in the embodiment of the present invention is a user equipment that is closer to the target device, and the relay device and the target device are located in a network coverage of the same eNB, and the relay device may include but It is not limited to user equipments with communication functions such as mobile phones and tablet computers. It can be understood that the relay device is a user equipment that is not limited in power consumption or insensitive to energy consumption, that is, the remaining power of the relay device is large, which not only ensures normal communication of the relay device user, but also can Assist in the normal communication of other devices.
- the network side node in the embodiment of the present invention is the foregoing eNB, and may also include a base station or a wireless local network access point (WLAN AP) in another system.
- the relay device and the target device are both within the network coverage of the network side node, and the network side node allocates or configures various resources for the relay device and the target device to ensure the middle Following normal communication between the device and the target device.
- FIG. 2 is a schematic flowchart of a resource requesting method according to Embodiment 1 of the present invention. As shown in FIG. 2, the method provided in Embodiment 1 of the present invention may include the following content of 101-105.
- the target device detects whether there is data to be transmitted in a buffer of the target device.
- the target device detects whether there is data to be transmitted in a buffer of the target device.
- the buffer is the memory for temporarily placing output or input data.
- the data to be transmitted is to be sent Sending data
- the data to be sent is data that the target device wants to send to other user equipments, or uplink data that the target device wants to send to the network side node.
- the data to be sent may be determined by the target device according to an operation instruction of the user on the target device, or may be determined by the target device according to an autonomous communication requirement. If the target device detects that the data to be transmitted exists, it indicates that the target device needs to transmit data to other user equipments or the network side node, but the target device needs data transmission resources to transmit data, in the prior art.
- the target device directly requests the data transmission resource from the network side node, but the target device that is limited in power consumption speeds up the power consumption of the target device, so the embodiment of the present invention adopts a closer distance from the target device.
- the relay device requests the data transmission resource from the network side node instead of the target device.
- the target device When the target device detects that the data to be transmitted exists, send the first target device message to the relay device.
- the first target device message is a D2D link buffer status report.
- the link is a line from one node to another adjacent node, and there is no other switching node in the middle, and the line may be a wired line or a wireless line. Therefore, the D2D chain in the embodiment of the present invention is known.
- the road is a wireless line between two user equipments in D2D communication.
- the interface between the two user equipments is a PC5 port, which is used for data and information transmission between two user equipments. For details, see the 3rd Generation Partnership Project ( 3rd Generation Partnership Project, 3GPP) Definition of the PC5 port in D2D communication in the communication protocol.
- the Buffer Status Report (BSR) is used to provide the network side node with the amount of cache data to be sent by the user equipment in its data buffer.
- the D2D Link Buffer Status Report (SL-BSR) is used by the target device to provide the relay device with cached data of the data to be transmitted of the target device in its buffer. the amount.
- the target device sends a D2D link buffer status report to the relay device, and informs the relay device of the data amount of the data to be transmitted.
- the network side node configures, for the PC5 port between the target device and the relay device, a resource for the target device to send the D2D link buffer status report to the relay device, that is, The D2D link buffer status reports the resource, and the target device sends the PC5 port between the target device and the relay device to the relay device by using the D2D link buffer status report resource.
- the first target message that is, the D2D link buffer status report.
- the network side node has pre-configured the D2D for the PC5 port between the target device and the relay device by default.
- the link buffer status reports the resource, so that the target device can directly send the D2D link buffer status report to the relay device when detecting that the data to be transmitted exists.
- the D2D link buffer status report is used to trigger the relay device to request the network side node to allocate data transmission resources to the target device, and the target device in the prior art is directly sent to the network side node. The manner in which the data transmission resource is requested to be allocated.
- the relay device receives the first target device message, and sends a first relay device message to a network side node.
- the first relay device message is an extended buffer status report.
- the relay device identifies the received message and determines whether it is the D2D link buffer status report.
- the relay device reports whether data exists on the resource by detecting the D2D link buffer status of the PC5 interface between the target device and the relay device, and detects the D2D chain.
- the relay device determines whether data exists on the resource by detecting the D2D link buffer status of the PC5 interface between the target device and the relay device, and detects the D2D chain.
- the size of the data is not limited herein.
- the relay device detects whether a first preset logical channel identifier exists in the D2D logical channel identifier, and determines that the relay device receives the first preset logical channel identifier when the first preset logical channel identifier is detected.
- the message is the D2D link buffer status report.
- the first preset logical channel identifier is an identifier set for the D2D link buffer status report on a D2D Link Shared Channel (SL-SCH) in the D2D communication standard protocol.
- SL-SCH D2D Link Shared Channel
- the relay device acquires, by the network side node, a Uu port configuration between the relay device and the network side.
- the extended buffer status reports resources are used.
- the Uu interface is an interface between the relay device and the network side node, and is used for data and information transmission between the relay device and the network side node. For details, see Uu in the 3GPP communication protocol. The definition of the mouth.
- the extended buffer status report resource is used by the relay device to send the first relay device message to the network side node.
- the network side node is preset as the middle
- the extended buffer status report resource is configured along the Uu port between the device and the network side node.
- the extended buffer status report is configured to trigger the network side node to send first authorization information to the target device, where the first authorization information includes a location allocated by the network side node to the target device Data transmission resources.
- the network side node receives the first relay device message, and sends first authorization information to the target device.
- the first authorization information is data transmission resource authorization information.
- the network side node identifies the received message and determines whether it is the extended buffer status report.
- the network side node detects whether data exists on the extended buffer status report resource, and determines, when the data exists on the extended buffer status report resource, the message received by the network side node. Report the extended buffer status.
- the size of the data is not limited herein.
- the network side node detects whether a second preset logical channel identifier exists in the logical channel identifier, and determines that the network side node receives the message when the second preset logical channel identifier is detected Report the extended buffer status.
- the second preset logical channel identifier is an identifier set by the D2D communication standard protocol on the uplink shared channel (UL-SCH) for the extended buffer status report.
- UL-SCH uplink shared channel
- the network side node receives the media access control (MAC) packet indicated by the preset logical channel identifier, determining that the network side node receives the extended buffer state. report.
- MAC media access control
- the network side node when the network side node receives the extended buffer status report, the network side node sends first authorization information, that is, the data transmission resource authorization information, to the target device.
- the data transmission resource authorization information includes a data transmission resource allocated by the network side node to the target device, and the data transmission resource is used by the target device to transmit the to-be-transmitted data.
- the target device receives the first authorization information.
- the target device receives the first authorization information, that is, the data transmission resource authorization information, where the data transmission resource authorization information includes the data transmission resource allocated by the network side node for the target device.
- the data transmission resource is used by the target device to transmit the to-be-transmitted data to the relay device, and when the target device receives the data transmission resource authorization information, the target device passes the PC5.
- the data transmission resource sends the data to be transmitted to the relay device.
- the relay device may store the data to be transmitted in a buffer of the relay device, or forward the data to be transmitted to The network side node.
- the data transmission resource is used by the target device to transmit the to-be-transmitted data to the network-side node, and when the target device receives the data transmission resource authorization information, the target device passes the Uu between the target device and the network side node And the data transmission resource sends the data to be transmitted to the network side node.
- the first target device message is sent to the relay device; when the relay device receives the first target device message, according to the A target device message sends a first relay device message to the network side node; the network side node receives the first relay device message, and sends the first authorization information to the target device according to the first relay device message, where the first authorization information includes the network side.
- the data transmission resource allocated by the node to the target device enables the relay device to request the data transmission resource from the network side node instead of the target device, thereby reducing the energy consumption of the target device while the target device obtains the transmission resource.
- FIG. 3 is a schematic flowchart of a resource requesting method according to Embodiment 2 of the present invention. As shown in FIG. 3, the method provided in Embodiment 2 of the present invention may include the following 201-212.
- the target device detects whether there is data to be transmitted in a buffer of the target device.
- the target device detects whether there is data to be transmitted in a buffer of the target device.
- the buffer is the memory for temporarily placing output or input data.
- the data to be transmitted is data to be transmitted
- the data to be sent is data that the target device wants to send to other user equipments, or uplink data that the target device wants to send to the network side node.
- the data to be sent may be determined by the target device according to an operation instruction of the user on the target device, or may be determined by the target device according to an autonomous communication requirement. If the target device detects that the data to be transmitted exists, it indicates that the target device needs to transmit data to other user equipments or the network side node, but the target device needs data transmission resources to transmit data, in the prior art.
- the target device directly requests the data transmission resource from the network side node, but the target device that is limited in power consumption speeds up the power consumption of the target device, so the embodiment of the present invention adopts a closer distance from the target device.
- the relay device requests the data transmission resource from the network side node instead of the target device.
- the target device When the target device detects that the data to be transmitted exists, send a second target message to the relay device.
- the second target device message is a D2D link request message.
- the link is a line from one node to another adjacent node, and there is no other switching node in the middle, and the line may be a wired line or a wireless line. Therefore, the D2D chain in the embodiment of the present invention is known.
- the road is a wireless line between two user equipments in the D2D communication, and the interface between the two user equipments is a PC5 port, which is used for data and information transmission between the two user equipments.
- the Scheduling Request is used to request the uplink shared channel resource to be used for sending the uplink data. Once the scheduling request is triggered, it will remain in the suspended state until it is cancelled, that is, this time. The scheduling request is satisfied or responded, then the scheduling request is cancelled; or the scheduling request is not necessary, then the scheduling request is cancelled.
- the D2D link request message is a D2D Link Scheduling Request (SL-SR), and is used on the D2D link to request the relay device to request the network side node for the target device.
- SL-SR D2D Link Scheduling Request
- the target device when the target device detects that the data to be transmitted exists, the target device sends the second target to the relay device by using a PC5 port between the target device and the relay device.
- Device message that is, the D2D link request message.
- the D2D link request message is used to trigger the relay device to request the network side node to configure a D2D link buffer status report resource for the target device.
- the network side node does not pre-configure the D2D link buffer status report resource for the target device, and therefore the target device needs to request the D2D for the target device by using the relay device.
- Link buffer status report resource is not pre-configure the D2D link buffer status report resource for the target device, and therefore the target device needs to request the D2D for the target device by using the relay device.
- the relay device receives the second target device message, and sends a second relay device message to the network side node.
- the second relay device message is an extension request message.
- the relay device identifies the received message and determines whether it is the D2D link request message.
- the relay device detects whether data exists on the D2D link scheduling request resource, and determines that the message received by the relay device is the D2D when data exists on the D2D link scheduling request resource.
- Link request message The size of the data is not limited herein.
- the D2D link scheduling request resource is used by the target device to send the D2D link request message to the relay device.
- the network side node is in advance for the target device and the The D5D link scheduling request resource is configured by the PC5 port between the relay devices, so that the target device sends the D2D link request message to the relay device.
- the relay device When the relay device receives the D2D link request message, the relay device sends the second to the network side node by using a Uu interface between the relay device and the network side node.
- Relay device message The Uu interface is an interface between the relay device and the network side node, and is used for transmitting information between the relay device and the network side node.
- the extension request message is used to trigger the network side node to send second authorization information to the target device, where the second authorization information includes
- the D2D link buffer status report resource configured by the network side node is configured by the target device, and the D2D link buffer status report resource is used by the target device to send the device to the relay device through a PC5 port. Describe the D2D link buffer status report.
- the network side node receives the second relay device message, and sends second authorization information to the target device.
- the second authorization information is D2D link buffer status report authorization information.
- the network side node identifies the received message and determines whether it is the extension request message.
- the extension request message is an extended scheduling request, and is used to request the network side node to allocate, to the target device, the resource that the target device sends a D2D link buffer status report to the relay device, that is, send the target device.
- the resource of the first relay device message the network side node detects whether there is data on the extended scheduling request resource, and determines that the message received by the network side node is the extended request message when detecting that there is data on the extended scheduling request resource. .
- the size of the data is not limited herein.
- the extended scheduling request resource is used by the relay device to send the extended scheduling request to the network side node, where the network side node is the relay device and the network side in advance in the embodiment of the present invention.
- the Uu interface between the nodes configures the extended scheduling request resource, so that the relay device sends the extension request message to the network side node.
- the D2D link buffer status report resource authorization information includes a D2D link buffer status report resource configured by the network side node for the target device, and the D2D link buffer status report resource is used by the target device. Sending the D2D link buffer status report to the relay device.
- the target device receives the second authorization information, and sends a first target device message to the relay device.
- the first target device message is a D2D link buffer status report.
- the buffer status report is used to provide the network side node with the amount of cached data that the user equipment is to send in its data buffer.
- the D2D link buffer status report is used by the target device to provide the relay device with a buffered data amount of the data to be transmitted of the target device in its buffer.
- the target device receives the D2D link buffer status report authorization information, pass the PC5 port between the target device and the relay device, and report the authorization information by using the D2D link buffer status.
- the D2D link buffer status reporting resource is sent to the relay device Send D2D link buffer status report.
- the D2D link buffer status report is used to trigger the relay device to request the network side node to allocate data transmission resources to the target device, and the target device in the prior art is directly sent to the network side node. The manner in which the data transmission resource is requested to be allocated.
- the network side node does not pre-configure the D2D link buffer status report resource for the PC5 port between the target device and the relay device, so the target device needs to request
- the device directly requests the network side node, and the request of the relay device to the network side node greatly reduces the energy consumption of the target device.
- the network side node has pre-configured the D2D link buffer status report resource for the PC5 port between the target device and the relay device, so the target device in the first embodiment
- the D2D link buffer status report can be sent to the relay device directly using the D2D link buffer status report resource.
- the D2D link buffer is used to send the D2D link buffer to the relay device. status report.
- the relay device receives the first target device message, and sends a third relay device message to the network side node.
- the third relay device message is an extended buffer status report request message.
- the relay device identifies the received message and determines whether it is the D2D link buffer status report.
- the relay device reports whether data exists on the resource by detecting the D2D link buffer status of the PC5 interface between the target device and the relay device, and detects the D2D chain.
- the relay device determines whether data exists on the resource by detecting the D2D link buffer status of the PC5 interface between the target device and the relay device, and detects the D2D chain.
- the size of the data is not limited herein.
- the relay device detects whether a first preset logical channel identifier exists in the D2D logical channel identifier, and determines that the relay device receives the first preset logical channel identifier when the first preset logical channel identifier is detected.
- the message is the D2D link buffer status report.
- the first preset logical channel identifier is an identifier set for the D2D link buffer status report on the D2D link shared channel in the D2D communication standard protocol.
- the network side node is not in advance for the relay device and
- the Uu interface between the network side nodes configures an extended buffer status report resource, and the extended buffer status report resource is used by the relay device to send an extended buffer status report to the network side node, so the middle
- the device receives the D2D link buffer status report, the device cannot directly send the extended buffer status report to the network side node, and needs to first request the extended buffer status report resource from the network side node.
- the relay device requests the extended buffer status report resource by sending the extended buffer status report request message to the network side node, where the extended buffer status report request message is an extended buffer status report scheduling And a request for requesting the network side node to configure the extended buffer status report resource for the relay device.
- the network side node receives the third relay device message, and sends third authorization information to the relay device.
- the third authorization information is an extended buffer status report resource authorization information.
- the network side node detects whether the third relay device message is received, and when receiving the third relay device message, sends the third authorization information, that is, the extension, to the relay device.
- the extended buffer status report resource authorization information includes the extended buffer status report resource configured by the network side node for the relay device.
- the relay device receives the third authorization information, and sends a first relay device message to the network side node.
- the first relay device message is an extended buffer status report.
- Receiving, by the relay device, the third authorization information, by using a Uu interface between the relay device and the network side node, and using the extended buffer status to report the extended buffer in the resource authorization information The status report resource sends the first relay device message, that is, the extended buffer status report, to the network side node.
- the extended buffer status report is used to trigger the network side node to send data transmission resource authorization information to the target device, where the data transmission resource authorization information includes the data allocated by the network side node to the target device. Transfer resources.
- the network side node does not pre-configure the extended buffer status report resource for the Uu interface between the relay device and the network side node, so the relay device cannot directly Sending the extended buffer status report to the network side node, requesting the extended buffer status report resource from the network side node.
- the network side node has previously configured the extended buffer status report resource for the Uu port between the relay device and the network side node, so the relay device can be directly used.
- the extended buffer status reporting resource to the network The side node sends the extended buffer status report.
- the network side node receives the first relay device message, and sends first authorization information to the target device.
- the first authorization information is data transmission resource authorization information.
- the network side node identifies the received message and determines whether it is the extended buffer status report.
- the network side node detects whether data exists on the extended buffer status report resource, and determines, when the data exists on the extended buffer status report resource, the message received by the network side node. Report the extended buffer status.
- the size of the data is not limited herein.
- the network side node detects whether there is a second preset logical channel identifier in the logical channel identifier, and when detecting that the second preset logical channel identifier exists, determining that the network side node receives the Expand the buffer status report.
- the second preset logical channel identifier is an identifier set by the D2D communication standard protocol for the extended buffer status report on the uplink shared channel.
- the network side node receives the media access control packet indicated by the preset logical channel identifier, determining that the network side node receives the extended buffer status report.
- the network side node when the network side node receives the first relay device message, the network side node sends first authorization information, that is, the data transmission resource authorization information, to the target device.
- the data transmission resource authorization information includes a data transmission resource allocated by the network side node to the target device, and the data transmission resource is used by the target device to transmit the to-be-transmitted data.
- the target device receives the first authorization information.
- the target device receives the first authorization information, that is, the data transmission resource authorization information, where the data transmission resource authorization information includes the data transmission resource allocated by the network side node for the target device.
- the data transmission resource is used by the target device to transmit the data to be transmitted to the relay device, and when the target device receives the data transmission resource authorization information, the target device passes through a PC5 port, and The data transmission resource sends the to-be-transmitted data to the relay device.
- the network side node sends fourth authorization information to the relay device.
- the fourth authorization information is data forwarding resource authorization information.
- the extended buffer status report message is further configured to trigger the network side node to send data forwarding resource authorization information to the relay device. And the network side node sends the fourth authorization information, that is, the data forwarding resource authorization information, to the relay device when receiving the extended buffer status report sent by the relay device.
- the data forwarding resource authorization information includes a data forwarding resource allocated by the network side node to the relay device, and the data forwarding resource is used by the relay device to forward the to-be-transmitted data.
- the relay device receives the fourth authorization information.
- the relay device receives the data forwarding resource authorization information. And if the data to be transmitted transmitted by the target device is received, the data forwarding resource in the data forwarding resource authorization information is used by using a Uu interface between the relay device and the network side node. Transmitting the data to be transmitted to the network side node.
- the target device does not directly send a scheduling request and a buffer status report to the network side node, but sends the D2D to the relay device that is closer to the target device.
- the link request message and the D2D link buffer status report directly reduce the energy consumption of the target device compared to directly sending the scheduling request and the buffer status report to the network side node.
- the D2D link request message is sent to the relay device by the target device, and when the D2D link buffer status report authorization information is received, the D2D link buffer status report is sent to the relay device;
- the device When receiving the D2D link buffer status report, the device sends an extended buffer status report to the network side node according to the D2D link buffer status report; the network side node receives the extended buffer status report, and sends the extended buffer status report to the target device according to the extended buffer status report.
- Data transmission resource authorization information includes a data transmission resource allocated by the network side node to the target device, and the relay device replaces the target device to request the resource from the network side node, thereby reducing the target device while obtaining the transmission resource by the target device. Energy consumption.
- FIG. 4 is a schematic flowchart of a resource requesting method according to Embodiment 3 of the present invention. As shown in FIG. 4, the method provided in Embodiment 3 of the present invention may include the following content of 301-315.
- the target device detects whether there is data to be transmitted in a buffer of the target device.
- the target device When the target device detects that the data to be transmitted exists, send a second target message to the relay device.
- the relay device receives the second target device message, and sends a second relay device message to the network side node.
- the network side node receives the second relay device message, and sends second authorization information to the target device.
- the target device receives the second authorization information, and sends a first target device message to the relay device.
- the relay device receives the first target device message, and sends a third relay device message to the network side node.
- the network side node receives the third relay device message, and sends third authorization information to the relay device.
- the relay device receives the third authorization information, and sends a first relay device message to the network side node.
- the network side node receives the first relay device message, and sends first authorization information to the target device.
- the target device receives the first authorization information.
- step 301 to the step 310 in the embodiment of the present invention refer to the detailed description of the step 201 to the step 210 in the second embodiment of the present invention, and details are not described herein again.
- the relay device sends a fourth relay device message to the network side node.
- the fourth relay device message is a data forwarding request message.
- the embodiment of the present invention is different from the second embodiment.
- the network side node in the second embodiment allocates data forwarding resource authorization information to the relay device according to the extended buffer status report, that is, the network side node is
- the relay device allocates a data forwarding resource, and the relay device can directly use the data forwarding resource, but in the embodiment of the present invention, the network side node does not report the extended buffer status as described.
- the relay device allocates the data forwarding resource, so the relay device needs to request the data forwarding resource from the network side node, and the relay device first sends the data forwarding request message to the network side node, That is, the data forwarding scheduling request is used to request the network side node to allocate the data forwarding resource to the relay device.
- the network side node receives the fourth relay device message, and sends fourth authorization information to the relay device.
- the fourth authorization information is data forwarding request authorization information.
- the network side node receives the data forwarding request message, and sends the data forwarding request authorization information to the relay device according to the data forwarding request message, where the data forwarding request authorization information includes the network side node A resource configured by the relay device to send a buffer status report.
- the relay device receives the fourth authorization information, and sends a fifth to the network side node. Relay device message.
- the fifth relay device message is a buffer status report.
- the buffer status report is sent to the network side node, where the buffer status report is used to notify the network side node of the buffered data volume of the data to be transmitted in the buffer of the relay device.
- requesting the network side node to allocate the data forwarding resource to the relay device according to the buffer status report, where the data forwarding resource is used by the relay device to forward the to-be-transmitted data.
- the network side node receives the fifth relay device message, and sends fifth authorization information to the relay device.
- the fifth authorization information is data forwarding resource authorization information.
- the network side node receives the buffer status report, and sends the data forwarding resource authorization information to the relay device according to the buffer status report, where the data forwarding resource authorization information includes the network side node as a The data forwarding resource allocated by the relay device.
- the relay device receives the fifth authorization information.
- the relay device receives the fifth authorization information, that is, the data forwarding resource authorization information. And if the data to be transmitted transmitted by the target device is received, the data forwarding resource in the data forwarding resource authorization information is used by using a Uu interface between the relay device and the network side node. Transmitting the data to be transmitted to the network side node.
- the fifth authorization information that is, the data forwarding resource authorization information.
- the target device does not directly send a scheduling request and a buffer status report to the network side node, but sends the D2D to the relay device that is closer to the target device.
- the link request message and the D2D link buffer status report directly reduce the energy consumption of the target device compared to directly sending the scheduling request and the buffer status report to the network side node.
- the D2D link request message is sent to the relay device by the target device, and when the D2D link buffer status report authorization information is received, the D2D link buffer status report is sent to the relay device;
- the device When receiving the D2D link buffer status report, the device sends an extended buffer status report to the network side node according to the D2D link buffer status report; the network side node receives the extended buffer status report, and reports to the target device according to the extended buffer status report.
- Sending data transmission resource authorization information, and the data transmission resource authorization information includes data transmission resources allocated by the network side node to the target device
- the source implements the relay device instead of the target device to request resources from the network side node, thereby reducing the energy consumption of the target device while the target device obtains the transmission resource.
- the method shown in the first embodiment is a preferred resource request method, that is, the network side node configures the D2D link buffer status report resource for the target device in advance, and is the relay device.
- the extended buffer status report resource is configured.
- the target device needs to request the D2D link buffer status report resource
- the relay device needs to request the extended buffer status report resource.
- the method shown in the third embodiment is based on the second embodiment, but the network side node in the third embodiment does not allocate the data to the relay device when receiving the extended buffer status report. The resource is forwarded, so the relay device in the third embodiment needs to request the data forwarding resource from the network side node.
- FIG. 5 is a schematic structural diagram of a relay device according to an embodiment of the present invention.
- the relay device 1 provided in the embodiment corresponding to FIG. 5 may be the relay device provided in Embodiment 1 to Embodiment 3.
- the relay device includes a message receiving unit 11, a message transmitting unit 12, and an authorization information receiving unit 13.
- the message receiving unit 11 is configured to receive a first target device message sent by the target device.
- the first target device message is a D2D link buffer status report.
- the message receiving unit 11 identifies the received message and determines whether it is the D2D link buffer status report.
- the message receiving unit 11 reports whether data exists on the resource by detecting the D2D link buffer status of the PC5 interface between the target device and the relay device 1, and detects the When there is data on the D2D link buffer status report resource, it is determined that the message received by the message receiving unit 11 is the D2D link buffer status report.
- the size of the data is not limited herein.
- the message receiving unit 11 detects whether a first preset logical channel identifier exists in the D2D logical channel identifier, and determines that the message receiving unit 11 receives when the first preset logical channel identifier is detected.
- the incoming message is the D2D link buffer status report.
- the first preset logical channel identifier is an identifier set for the D2D link buffer status report on the D2D link shared channel in the D2D communication standard protocol.
- the message sending unit 12 is configured to send the first relay device message to the network side node according to the first target device message.
- the first relay device message is an extended buffer status report.
- the relay device 1 acquires The network side node is an extended buffer status report resource configured by the Uu port between the relay device and the network side.
- the Uu interface is an interface between the relay device 1 and the network side node, and is used for data and information transmission between the relay device 1 and the network side node.
- the extended buffer status report resource is used by the message sending unit 12 to send the first relay device message to the network side node.
- the network side node is preset as described above.
- the extended buffer status report resource is configured by the Uu port between the relay device 1 and the network side node.
- the message sending unit 12 sends the extended buffer status report to the network side node by using the Uu port between the relay device 1 and the network side node, and using the extended buffer status report resource.
- the extended buffer status report is used to trigger the network side node to send first authorization information to the target device, where the first authorization information includes the data transmission resource allocated by the network side node to the target device. .
- the message receiving unit 11 is further configured to receive a second target device message sent by the target device.
- the second target device message is a D2D link request message.
- the message receiving unit 11 identifies the received message and determines whether it is the D2D link request message.
- the message receiving unit 11 detects whether data exists on the D2D link scheduling request resource, and determines that the message received by the message receiving unit 11 is a message when there is data on the D2D link scheduling request resource. Describe the D2D link request message.
- the size of the data is not limited herein.
- the D2D link scheduling request resource is used by the target device to send the D2D link request message to the relay device 1.
- the network side node is the target device and the device in advance.
- the D5D link scheduling request resource is configured by the PC5 port between the relay devices 1 so that the target device sends the D2D link request message to the relay device 1.
- the message sending unit 12 is further configured to send a second relay device message to the network side node according to the second target device message, where the second relay device message is used to trigger the network side node to
- the target device sends the second authorization information, where the second authorization information includes the D2D link buffer status report resource configured by the network side node for the target device.
- the second relay device message is an extension request message.
- the message sending unit 12 sends the message to the network side node by using a Uu port between the relay device and the network side node.
- Second relay device message is an interface between the relay device 1 and the network side node, and is used for transmitting information between the relay device 1 and the network side node.
- the extension request message is used to trigger The network side node sends the second authorization information to the target device, where the second authorization information includes the D2D link buffer status report resource configured by the network side node for the target device, and the D2D chain
- the road buffer status report resource is used by the target device to send the D2D link buffer status report to the relay device 1 through the PC5 port.
- the message sending unit 12 is further configured to send a third relay device message to the network side node, where the third relay device message is used to request the network side node to configure an extended buffer for the relay device. Status report resource.
- the third relay device message is an extended buffer status report request message. If the network side node does not pre-configure an extended buffer status report resource for the Uu port between the relay device and the network side node, the extended buffer status report resource is used for the relay.
- the device sends an extended buffer status report to the network side node, and when the message receiving unit 11 receives the D2D link buffer status report, the message sending unit 12 cannot directly send the network side node to the network side node.
- the extended buffer status report requires the message sending unit 12 to first request the extended buffer status report resource from the network side node.
- the message sending unit 12 acquires the extended buffer status report resource by sending the extended buffer status report request message to the network side node, where the extended buffer status report request message is an extended buffer status report. And a scheduling request, configured to request the network side node to configure the extended buffer status report resource for the relay device.
- the authorization information receiving unit 13 is configured to receive the third authorization information that is sent by the network side node, where the third authorization information includes the extended buffer status report resource configured by the network side node for the relay device.
- the third authorization information is an extended buffer status report resource authorization information.
- the message sending unit 12 is specifically configured to send, according to the first target device message, a first relay device message to the network side node by using the extended buffer status report resource.
- the authorization information receiving unit 13 is further configured to receive the fourth authorization information that is sent by the network side node, where the fourth authorization information includes a data forwarding resource that is allocated by the network side node to the relay device.
- the data forwarding resource is used by the relay device to forward the data to be transmitted.
- the fourth authorization information is data forwarding resource authorization information.
- the first relay device message is further configured to trigger the network side node to send fourth authorization information to the relay device.
- the authorization information receiving unit 13 receives the data forwarding resource authorization letter sent by the network side node.
- the data forwarding resource authorization information includes a data forwarding resource allocated by the network side node to the relay device, and the data forwarding resource is used by the relay device to forward the to-be-transmitted data. If the relay device 1 also receives the data to be transmitted transmitted by the target device, use the data forwarding resource authorization information by using the Uu interface between the relay device 1 and the network side node.
- the data forwarding resource in the medium, and the data to be transmitted is transmitted to the network side node.
- the D2D link buffer status report sent by the target device is received by the relay device, and the extended buffer status report is sent to the network side node according to the D2D link buffer status report, and the buffer status report is extended.
- the requesting network side node allocates a data transmission resource to the target device, so that the relay device replaces the target device to request the data transmission resource from the network side node, thereby reducing the energy consumption of the target device while the target device obtains the transmission resource.
- FIG. 6 is a schematic structural diagram of a target device according to an embodiment of the present invention.
- the target device 2 provided by the embodiment corresponding to FIG. 6 may be the target device provided in Embodiment 1 to Embodiment 3.
- the target device includes a message transmitting unit 21 and an authorization information receiving unit 22.
- the message sending unit 21 is configured to send a first target device message to the relay device.
- the target device 2 detects whether there is data to be transmitted in the buffer of the target device.
- the buffer is the memory for temporarily placing output or input data.
- the data to be transmitted is data to be transmitted, and the data to be transmitted is data that the target device 2 wants to send to other user equipments, or uplink data that the target device 2 wants to send to the network side node.
- the data to be transmitted may be determined by the target device 2 according to an operation instruction of the user to the target device 2, or may be determined by the target device 2 according to an autonomous communication requirement.
- the target device 2 detects that the data to be transmitted exists, it indicates that the target device 2 is to transmit data to other user equipments or the network side node, but the target device 2 needs data transmission resources to transmit data, In the prior art, the target device 2 directly requests the data transmission resource from the network side node, but the target device that is limited in power consumption speeds up the power consumption of the target device, so the embodiment of the present invention adopts the target The relay device that is closer to the device 2 requests the data transmission resource from the network side node instead of the target device 2.
- the link is a line from one node to another adjacent node, and there is no other switching node in the middle, and the line may be a wired line or a wireless line, and thus the present invention is known.
- the D2D link in the embodiment is a wireless line between two user equipments in the D2D communication, and the interface between the two user equipments is a PC5 port, which is used for data and information transmission between the two user equipments.
- the buffer status report is used to provide the network side node with the amount of cached data that the user equipment is to send in its data buffer.
- the D2D link buffer status report is used by the target device 2 to provide the relay device with the amount of cached data of the data to be transmitted of the target device 2 in its buffer.
- the message sending unit 21 sends a D2D link buffer status report to the relay device, and informs the relay device of the data of the data to be transmitted. the amount. If the network side node configures, for the PC5 port between the target device 2 and the relay device, a resource for the target device 2 to send the D2D link buffer status report to the relay device.
- the message sending unit 21 passes the PC5 port between the target device and the relay device, and uses the D2D link buffer status report resource to the The relay device sends the first target message, that is, the D2D link buffer status report.
- the network side node has pre-configured the D2D link buffer status report resource for the PC5 port between the target device 2 and the relay device by default, so that the target device 2
- the message sending unit 21 may directly send the D2D link buffer status report to the relay device.
- the D2D link buffer status report is used to trigger the relay device to request the network side node to allocate data transmission resources to the target device 2, and the target device 2 in the prior art is directly directed to the network. The way the side node requests it to allocate the data transmission resource.
- the authorization information receiving unit 22 is configured to receive the first authorization information that is sent by the network side node, where the first authorization information includes the data transmission resource that is allocated by the network side node to the target device.
- the first authorization information is data transmission resource authorization information.
- the authorization information receiving unit 22 receives the data transmission resource authorization information, where the data transmission resource authorization information includes the data transmission resource allocated by the network side node for the target device 2.
- the data transmission resource is used by the target device 2 to transmit the to-be-transmitted data to the relay device, and when the authorization information receiving unit 22 receives the data transmission resource authorization information, The target device 2 transmits the to-be-transmitted data to the relay device through the PC5 port and the data transmission resource.
- the relay device may store the data to be transmitted in a buffer of the relay device, or forward the data to be transmitted. To the stated Network side node.
- the data transmission resource is used by the target device 2 to transmit the to-be-transmitted data to the network-side node, and when the authorization information receiving unit 22 receives the data transmission resource authorization information, The target device 2 sends the data to be transmitted to the network side node by using a Uu interface between the target device and the network side node, and the data transmission resource.
- the message sending unit 21 is configured to send a second target device message to the relay device, where the second target device message is used to trigger the relay device to request the network side node to configure the D2D link buffer status report for the target device. Resources.
- the second target device message is a D2D link request message.
- the message sending unit 21 sends a D2D link request to the relay device through the PC5 port between the target device 2 and the relay device.
- the D2D link request message is used to trigger the relay device to request the network side node to configure a D2D link buffer status report resource for the target device 2.
- the network side node does not pre-configure the D2D link buffer status report resource for the target device 2, and therefore the target device 2 needs to be requested by the relay device. Describe the D2D link buffer status report resource.
- the authorization information receiving unit 22 is further configured to receive second authorization information that is sent by the network side node, where the second authorization information includes the D2D link buffer configured by the network side node for the target device. Status report resource.
- the second authorization information is D2D link buffer status report authorization information.
- the D2D link buffer status report resource authorization information includes a D2D link buffer status report resource configured by the network side node for the target device, and the D2D link buffer status report resource is used by the target device. Sending the D2D link buffer status report to the relay device.
- the message sending unit 21 is specifically configured to send the D2D link buffer status report resource in the D2D link buffer status report authorization information received by the authorization information receiving unit 22 to the relay device. First target device message.
- the target device detects whether there is data to be transmitted in the buffer of the target device, and when detecting that there is data to be transmitted, sends a D2D link buffer status report to the relay device, and the D2D link buffer
- the area status report is used to trigger the relay device to request the network side node to allocate data transmission resources to the target device, and the target device receives the data transmission resource authorization information sent by the network side node, where the data transmission resource authorization information includes data allocated by the network side node to the target device.
- Transmission resources The target device requests the data transmission resource from the network side node through the relay device, so that the relay device assists the target device to obtain the transmission resource and reduces the energy consumption of the target device.
- FIG. 7 is a schematic structural diagram of a network side node according to an embodiment of the present invention.
- the network side node 3 provided by the embodiment corresponding to FIG. 7 may be the network side node provided by Embodiment 1 to Embodiment 3.
- the network side node includes a message receiving unit 31 and an authorization information transmitting unit 32.
- the message receiving unit 31 is configured to receive a first relay device message that is sent by the relay device, where the first relay device message is used to trigger the network side node to send the first authorization information to the target device.
- the first relay device message is an extended buffer status report.
- the first authorization information is data transmission resource authorization information.
- the message receiving unit 31 identifies the received message and determines whether it is the extended buffer status report.
- the message receiving unit 31 detects whether data exists on the extended buffer status report resource, and determines that the message receiving unit 31 receives when data is detected on the extended buffer status report resource.
- the message is reported for the extended buffer status.
- the size of the data is not limited herein.
- the message receiving unit 31 detects whether a second preset logical channel identifier exists in the logical channel identifier, and determines that the message receiving unit 31 receives the second preset logical channel identifier when the second preset logical channel identifier is detected.
- the message is reported for the extended buffer status.
- the second preset logical channel identifier is an identifier set by the D2D communication standard protocol for the extended buffer status report on the uplink shared channel.
- the network side node receives the media access control packet indicated by the preset logical channel identifier, determining that the network side node receives the extended buffer status report.
- the authorization information sending unit 32 is configured to send the first authorization information to the target device according to the first relay device message, where the first authorization information includes data allocated by the network side node to the target device. Transfer resources.
- the authorization information sending unit 32 sends data transmission resource authorization information to the target device, where the data transmission resource authorization information includes a data transmission resource allocated by the network side node to the target device, where the data transmission resource is used by the target device to transmit the to-be-transmitted data.
- the data transmission resource is used for data to be transmitted in the target device transmission buffer.
- the message receiving unit 31 is configured to: the network side node receives a second relay device message sent by the relay device, where the second relay device message is used to trigger the network side node to send the second device to the target device. Authorization information.
- the second relay device message is an extension request message.
- the second authorization information is D2D link buffer status report authorization information.
- the message receiving unit 31 identifies the received message and determines whether it is the extension request message sent by the relay device.
- the extension request message is an extended scheduling request, and is used to request the network side node to allocate, to the target device, the resource that the target device sends a D2D link buffer status report to the relay device, that is, send the target device.
- the resource of the first relay device message detects whether data exists on the extended scheduling request resource, and determines that the message received by the message receiving unit 31 is the extension when detecting that there is data on the extended scheduling request resource. Request message.
- the size of the data is not limited herein.
- the extended scheduling request resource is used by the relay device to send the extended scheduling request to the network side node 3.
- the network side node is the relay device and the network in advance.
- the Uu interface between the side nodes 3 configures the extended scheduling request resource, so that the relay device sends the extension request message to the network side node 3.
- the authorization information sending unit 32 is further configured to send the second authorization information to the target device according to the extension request message, where the second authorization information includes a D2D configured by the network side node for the target device. Link buffer status report resource.
- the authorization information sending unit 32 sends D2D link buffer status report resource authorization information to the target device, and the D2D link buffer
- the area status report resource authorization information includes a D2D link buffer status report resource configured by the network side node for the target device, and the D2D link buffer status report resource is used by the target device to the relay device. Send the D2D link buffer status report.
- the message receiving unit 31 is further configured to receive a third relay device message that is sent by the relay device, where the third relay device message is used to request the network side node to configure an extended buffer state for the relay device. Report resources.
- the third relay device message is an extended buffer status report request message.
- the authorization information sending unit 32 is further configured to send third authorization information to the relay device according to the third relay device message, where the third authorization information includes the network side node being the relay device.
- the extended buffer status report resource configured.
- the third authorization information is an extended buffer status report resource authorization information.
- the authorization information sending unit 32 sends an extended buffer status report resource authorization to the relay device according to the extended buffer status report request message.
- the extended buffer status report resource authorization information includes the extended buffer status report resource configured by the network side node for the relay device.
- the authorization information sending unit 32 is further configured to send the fourth authorization information to the relay device according to the first relay device message, where the fourth authorization information includes the network side node is the middle And following the data forwarding resource allocated by the device, the data forwarding resource is used by the relay device to forward the data to be transmitted.
- the fourth authorization information is data forwarding resource authorization information.
- the first relay device message that is, the extended buffer status report, is further configured to trigger the network side node to send data forwarding resource authorization information to the relay device.
- the authorization information sending unit 32 sends the data forwarding resource authorization information to the relay device, where the data
- the forwarding resource authorization information includes a data forwarding resource allocated by the network side node to the relay device, and the data forwarding resource is used by the relay device to forward the to-be-transmitted data.
- the network side node receives the extended buffer status report sent by the relay device, and sends the data transmission resource authorization information to the target device according to the extended buffer status report, where the data transmission resource authorization information includes the network side node as the target.
- the data transmission resource allocated by the device so that the network side node allocates the data transmission resource to the target device according to the extended buffer status report sent by the relay device, so that the target device reduces the energy consumption of the target device while obtaining the transmission resource.
- the relay device shown in FIG. 5, the target device shown in FIG. 6, and the network side node shown in FIG. 7 are used to implement the contents of Embodiments 1 to 3 of the present invention, and FIG. 5, FIG. 6, and FIG.
- FIG. 5, FIG. 6, and FIG. For a part of the disclosure, reference may be made to the specific description of the first embodiment to the third embodiment.
- FIG. 8 is a schematic structural diagram of another relay device according to an embodiment of the present invention.
- the relay device includes: at least one processor 801, such as a CPU, at least one communication bus 802, and input.
- the relay device is a user equipment that is close to the target device, and assists the target device to request transmission resources from the network side node.
- the communication bus 802 is used to implement the connection between these components. letter.
- the input device 803 is configured to receive an audio or video signal, and is further configured to receive an input command of the user and generate key input data according to the input command to control various operations of the relay device.
- the output device 804 is configured to provide an output signal (eg, an audio signal, a video signal, an alarm signal, a vibration signal, etc.) in a visual, audio, and/or tactile manner, and the output device 804 can include a display unit, an audio output module, an alarm unit Etc., not indicated in Figure 8.
- the power module 806 receives external power or internal power under the control of the processor 801 and provides the required power to devices, modules, memory 805, processor 801, etc. on the communication bus 802.
- the power module 806 of the relay device has a large capacity.
- the memory 805 may include at least one type of storage medium including a flash memory, a hard disk, a multimedia card, a card type memory (eg, SD or DX memory, etc.), a random access memory (RAM), static random access. Memory (SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disk, optical disk, and the like.
- the processor 801 typically controls the overall operation of the relay device, for example, the processor 801 performs the control and processing associated with voice calls, data communications, video calls, and the like.
- the wireless communication module 807 is configured to transmit a radio signal to at least one of a base station (eg, an access point, a Node B, etc.), an external terminal, and a server, and/or a device that receives a radio signal therefrom.
- a base station eg, an access point, a Node B, etc.
- Such radio signals may include voice call signals, video call signals, or various types of data transmitted and/or received in accordance with text and/or multimedia messages.
- the wireless communication module 807 includes a message receiving unit, a message transmitting unit, and an authorization information receiving unit.
- the message receiving unit corresponds to the message receiving unit 11 in the relay device shown in FIG. 5, and is configured to receive the first target device message sent by the target device. In a possible implementation manner, the message receiving unit further uses Receiving a second target device message sent by the target device.
- the message sending unit corresponds to the message sending unit 12 in the relay device shown in FIG. 5, and is configured to send a first relay device message to the network side node.
- the message sending unit is further used to The second relay device message and the third relay device message are sent to the network side node, and are even used to send the fourth relay device message and the fifth relay device message to the network side node.
- the first relay device message, the second relay device message, the third relay device message, the fourth relay device message, and the fifth relay device message refer to the first relay in the first embodiment to the third embodiment.
- Device message, second relay device message, third relay device message, The detailed descriptions of the four relay device messages and the fifth relay device messages are not described herein again.
- the authorization information receiving unit corresponds to the authorization information receiving unit 13 in the relay device shown in FIG.
- the authorization information receiving unit is further configured to receive the fourth authorization information and the fifth authorization information, the fourth authorization information, and the fifth authorization information, which are sent by the network side node
- the authorization information receiving unit is further configured to receive the fourth authorization information and the fifth authorization information, the fourth authorization information, and the fifth authorization information, which are sent by the network side node
- the wireless communication module 807 also includes an air interface, not shown in FIG.
- the air interface is used by the relay device to communicate with other user equipment or base stations.
- the air interface includes a PC5 port and a Uu port, and the PC5 port is an interface between the relay device and other devices, that is, an interface between the relay device and the target device.
- the Uu interface is an interface between the relay device and the base station, that is, an interface between the relay device and the network side node.
- FIG. 9 is a schematic structural diagram of another target device according to an embodiment of the present invention.
- the target device includes: at least one processor 901, such as a CPU, at least one communication bus 902, and an input device 903.
- the target device requests the user equipment shown in FIG. 8 to request the network side node to allocate a transmission resource to the target device, and the target device is closer to the relay device shown in FIG. 8.
- the communication bus 902 is used to implement connection communication between these components.
- the input device 903 is configured to receive an audio or video signal, and is further configured to receive an input command of the user and generate key input data according to the input command to control various operations of the relay device.
- the output device 904 is configured to provide an output signal (eg, an audio signal, a video signal, an alarm signal, a vibration signal, etc.) in a visual, audio, and/or tactile manner, and the output device 904 can include a display unit, an audio output module, an alarm unit Etc., not shown in Figure 9.
- the power module 906 receives external power or internal power under the control of the processor 901 and provides the required power to devices, modules, memory 905, processor 901, etc. on the communication bus 902.
- the power capacity of the power module 906 of the target device is smaller than the power capacity of the power module 806 of the relay device, and the target device is a user device with limited power.
- the memory 905 may include at least one type of storage medium including a flash memory, a hard disk, a multimedia card, a card type memory (eg, SD or DX memory, etc.), a random access memory (RAM), static random access. Memory (SRAM), read only memory (ROM), electrically erasable In addition to programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disks, optical disks, and the like.
- the processor 901 typically controls the overall operation of the relay device, for example, the processor 901 performs control and processing related to voice calls, data communications, video calls, and the like.
- the wireless communication module 907 is configured to transmit a radio signal to at least one of a base station (eg, an access point, a Node B, etc.), an external terminal, and a server, and/or a device that receives a radio signal therefrom.
- a base station eg, an access point, a Node B, etc.
- Such radio signals may include voice call signals, video call signals, or various types of data transmitted and/or received in accordance with text and/or multimedia messages.
- the wireless communication module 907 includes a message transmitting unit and an authorization information receiving unit.
- the message sending unit corresponds to the message sending unit 21 in the target device shown in FIG. 6 , and is configured to send a first target device message to the relay device, where the first target device message is used to trigger the relay device to request the network side node.
- the data transmission resource is allocated to the target device.
- the message sending unit is further configured to send a second target device message to the relay device, where the second target device message is used to trigger the relay device to request the network side node.
- the network side node allocates a resource for the target device to send the first target device message to the target device.
- the authorization information receiving unit corresponds to the authorization information receiving unit 21 in the target device shown in FIG. 6 and is configured to receive the first authorization information sent by the network side node. In a possible implementation manner, the authorization information receiving unit further uses For the second authorization information sent by the network side node, the specific implementation process of the authorization information receiving unit can be referred to the specific description of the authorization information receiving unit 21 in the target device shown in FIG. 6 , and details are not described herein again.
- the wireless communication module 907 also includes an air interface, not shown in FIG.
- the air interface is used by the relay device to communicate with other user equipment or base stations.
- the air interface includes a PC5 port and a Uu port, and the PC5 port is an interface between the target device and other devices, that is, an interface between the target device and the relay device.
- the Uu interface is an interface between the target device and the base station, that is, an interface between the target device and the network side node.
- FIG. 10 is a schematic structural diagram of another network side node according to an embodiment of the present invention.
- the network side node includes: at least one controller 1001, at least one communication bus 1002, a receiver 1003, and Transmitter 1004.
- the network side node allocates various resources required for communication to the relay device shown in FIG. 8 and the target device shown in FIG. Among them, the communication bus 1002 is used to implement connection communication between these components.
- the receiver 1003 and the transmitter 1004 are collectively referred to as a transceiver station. Under the control of the controller 1001, the transceiver station completes the conversion between the control of the base station and the wireless channel, and realizes the transmission and reception of the communication signal of the user equipment and the wireless transmission between the mobile platform and related control functions.
- the controller 1001 is responsible for all mobile communication interface management, mainly the allocation, release and management of wireless channels.
- the receiver 1003 includes a message receiving unit, which is not indicated in FIG.
- the message receiving unit corresponds to the message receiving unit 31 in the network side node shown in FIG. 7 for receiving the first relay device message sent by the relay device.
- the message receiving unit further uses And receiving the second relay device message and the third relay device sent by the relay device, and even receiving the fourth relay device message and the fifth relay device message sent by the relay device.
- the functions of the first relay device message, the second relay device message, the third relay device message, the fourth relay device message, and the fifth relay device message refer to the first relay in the first embodiment to the third embodiment. A specific description of the device message, the second relay device message, the third relay device message, the fourth relay device message, and the fifth relay device message is not described herein again.
- the transmitter 1004 includes an authorization information transmitting unit, which is not indicated in FIG.
- the authorization information sending unit corresponds to the authorization information sending unit 32 in the network side node shown in FIG. 7 , and is used to carry the resource authorization information to the target device or the relay device according to the relay device message sent by the relay device.
- the authorization information sending unit sends the first authorization information that carries the data transmission resource to the target device according to the first relay device message, and sends the carried information to the target device to the relay device according to the second relay device message.
- the relay device message transmits fourth authorization information carrying the data forwarding resource to the relay device, and the like.
- the network side node also includes an air interface, not shown in FIG.
- the air interface includes a Uu port between the target device and the network side node, and a Uu port between the relay device and the network side node.
- the relay device shown in FIG. 8 the target device shown in FIG. 9 , and the network side node shown in FIG. 10 are used to implement the contents described in Embodiments 1 to 3 of the present invention.
- the embodiment of the present invention further provides a resource requesting system, including the relay device shown in FIG. 5 or FIG. 8 , the target device shown in FIG. 6 or FIG. 9 , and the network side node shown in FIG. 7 or FIG. 10 .
- Relay set The standby message receiving unit is configured to receive a target device message sent by the message sending unit of the target device, including a first target device message and/or a second target device message.
- the message receiving unit of the network side node is configured to receive a relay device message sent by the message sending unit of the relay device, including a first relay device message, a second relay device message, a third relay device message, At least one of a fourth relay device message and a fifth relay device message.
- the authorization information sending unit of the network side node is configured to send the authorization information to the authorization information receiving unit of the target device, including the first authorization information and/or the second authorization information, where the authorization information sending unit of the network side node further And sending the authorization information to the authorization information receiving unit of the relay device, including the third authorization information and/or the fourth authorization information, or the third authorization information, the fourth authorization information, and the fifth authorization information.
- the first target device message is sent to the relay device by the target device; when receiving the first target device message, the relay device sends the first relay device message to the network side node according to the first target device message.
- the network side node receives the first relay device message, and sends the first authorization information to the target device according to the first relay device message, where the first authorization information includes a data transmission resource allocated by the network side node to the target device, and the relay device is replaced.
- the target device requests a data transmission resource from the network side node, thereby reducing the energy consumption of the target device while the target device obtains the transmission resource.
- Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
- a storage medium may be any available media that can be accessed by a computer.
- the computer readable medium may include a random access memory (RAM), a read-only memory (ROM), and an electrically erasable programmable read-only memory (Electrically Erasable Programmable).
- EEPROM Electrically Error Read-Only Memory
- CD-ROM Compact Disc Read-Only Memory
- Any connection may suitably be a computer readable medium.
- the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, Then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, wireless and microwave are included in the fixing of the associated medium.
- DSL Digital Subscriber Line
- a disk and a disc include a compact disc (CD), a laser disc, a compact disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.
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Abstract
一种资源请求方法、设备、网络侧节点及***,其中方法包括如下步骤:目标设备向中继设备发送第一目标设备消息;中继设备接收到第一目标设备消息时,根据第一目标设备消息向网络侧节点发送第一中继设备消息;网络侧节点接收第一中继设备消息,根据第一中继设备消息向目标设备发送第一授权信息,第一授权信息包括网络侧节点为目标设备分配的数据传输资源。本发明实施例能够在发送设备,即目标设备,获得传输资源的同时降低发送设备的能耗。
Description
本发明涉及通信技术领域,尤其涉及一种资源请求方法、设备、网络侧节点及***。
随着智能终端的普及,网络中智能终端的数量正处于爆发性增长阶段,为了更好的满足用户需求,提升信息交互的效率,设备到设备(Device-to-Device,D2D)通信应运而生。D2D通信技术是一种实现近距离用户设备间不借助第三方直接通信的技术,它能提升频谱利用率、减轻蜂窝网络的负担、增加比特速率等,能支持新型的小范围点对点数据服务。因此,D2D通信在未来通信网络的演进中具有非常重要的作用。
在共站覆盖的D2D通信过程中,设备A从基站获得数据传输资源后可直接将数据传输至同一基站覆盖范围下的设备B;设备A在没有数据传输资源的情况下,需向该基站请求为其分配数据传输资源。若设备A的可用电量过低或其是能耗敏感的设备,那么通过现有的方式直接向基站请求数据传输资源的方法会进一步加快设备A能量的消耗。
发明内容
本发明实施例提供了一种资源请求方法、设备、网络侧节点及***,能够在发送设备获得传输资源的同时降低发送设备的能耗。
本发明实施例第一方面提供一种资源请求方法,包括:
中继设备接收目标设备发送的第一目标设备消息,所述第一目标设备消息用于触发所述中继设备请求网络侧节点为所述目标设备分配数据传输资源;
所述中继设备根据所述第一目标设备消息向所述网络侧节点发送第一中继设备消息,所述第一中继设备消息用于触发所述网络侧节点向所述目标设备发送第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的所述数据传输资源;
其中,所述数据传输资源用于所述目标设备传输待传输数据。
本发明实施例第一方面,所述中继设备代替所述目标设备向所述网络侧节
点申请目标设备用于传输所述待传输数据的所述数据传输资源,无需所述目标设备直接向所述网络侧节点申请,既可使得所述目标设备获得所述数据传输资源,又能降低所述目标设备的发射能耗。
基于本发明实施例第一方面,在本发明实施例第一方面的第一种可能实现的方式中,若所述网络侧节点预先为所述目标设备配置了用于向所述中继设备发送所述第一目标设备消息的资源,即D2D链路缓冲区状态报告资源,则所述中继设备直接接收所述目标设备通过所述D2D链路缓冲区状态报告资源发送的所述第一目标设备消息,无需所述中继设备请求所述网络侧节点为所述目标设备配置D2D链路缓冲区状态报告资源,减少所述中继设备的处理步骤。
结合本发明实施例第一方面的第一种可能实现的方式,在本发明实施例第二种可能实现的方式中,所述中继设备检测所述D2D链路缓冲区状态报告资源上是否存在数据,并在检测到所述D2D链路缓冲区状态报告资源上存在数据时,确定所述中继设备接收到的消息为所述第一目标设备消息,而非所述目标设备发送的其它消息,以便触发所述中继设备向所述网络侧节点发送所述第一中继设备消息。
结合本发明实施例第一方面的第一种可能实现的方式,在本发明实施例第三种可能实现的方式中,所述中继设备检测D2D逻辑信道标识中是否存在第一预设逻辑信道标识,并在检测到存在所述第一预设逻辑信道标识时,确定所述中继设备接收到的消息为所述第一目标设备消息,而非所述目标设备发送的其它消息,以便触发所述中继设备向所述网络侧节点发送所述第一中继设备消息;
其中,所述第一预设逻辑信道标识为D2D通信标准协议中在D2D链路共享信道上为所述第一目标设备消息设定的标识。
基于本发明实施例第一方面,在本发明实施例的第一方面的第四种可能实现的方式中,若所述网络侧节点预先未为所述目标设备配置用于向所述中继设备发送所述第一目标设备消息的资源,即D2D链路缓冲区状态报告资源,则中继设备在接收所述第一目标设备消息之前,执行以下步骤:
接收所述目标设备发送的第二目标设备消息,所述第二目标设备消息用于触发所述中继设备请求网络侧节点为所述目标设备配置D2D链路缓冲区状态报告资源;
根据所述第二目标设备消息向所述网络侧节点发送第二中继设备消息,所述第二中继设备消息用于触发所述网络侧节点向所述目标设备发送第二授权信息,所述第二授权信息包括所述网络侧节点为所述目标设备配置的所述D2D链路缓冲区状态报告资源;
其中,所述D2D链路缓冲区状态报告资源用于所述目标设备向所述中继设备发送所述第一目标设备消息。
本发明实施例的第一方面的第四种可能实现的方式,实现所述中继设备代替所述目标设备向所述网络侧节点申请所述D2D链路缓冲区状态报告资源,以便所述目标设备能够通过所述D2D链路缓冲区状态报告资源向所述中继设备发送所述第一目标设备消息。
结合本发明实施例第一方面的第四种可能实现的方式,在本发明实施例第五种可能实现的方式中,所述中继设备检测用于传输D2D链路请求消息资源上是否存在数据,并在检测到所述D2D链路请求消息资源上存在数据时,确定所述中继设备接收到的消息为所述第二目标设备消息,而非所述目标设备发送的其它消息,以便触发所述中继设备向所述网络侧节点发送所述第二中继设备消息。
结合本发明实施例第一方面的第一种至第五种可能实现的方式,在本发明实施例的第一方面的第六种可能实现的方式中,若所述网络侧节点预先为所述中继设备配置了用于向所述网络侧节点发送所述第一中继设备消息的资源,即扩展缓冲区状态报告资源,则所述中继设备直接通过所述扩展缓冲区状态报告资源向所述网络侧节点发送所述第一中继设备消息,无需所述中继设备向所述网络侧节点申请所述扩展缓冲区状态报告资源,减少所述中继设备的处理步骤。
结合本发明实施例第一方面的第一种至第五种可能实现的方式,在本发明实施例的第一方面的第七种可能实现的方式中,若所述网络侧节点预先未为所述中继设备配置用于向所述网络侧节点发送所述第一中继设备消息的资源,即扩展缓冲区状态报告资源,则所述中继设备在发送所述第一中继设备消息之前,执行以下步骤:
所述中继设备向所述网络侧节点发送第三中继设备消息,所述第三中继设备消息请求消息用于请求所述网络侧节点为所述中继设备配置扩展缓冲区状
态报告资源;
所述中继设备接收所述网络侧节点发送的第三资源授权信息,所述第三资源授权信息包括所述网络侧节点为所述中继设备配置的所述扩展缓冲区状态报告资源。
本发明实施例的第一方面的第七种可能实现的方式,实现所述中继设备向所述网络侧节点申请所述扩展缓冲区状态报告资源,以便所述中继设备能够通过所述扩展缓冲区状态报告资源向所述网络侧节点发送所述第一中继设备消息。
结合本发明实施例第一方面的第七种可能实现的方式,在本发明实施例的第一方面的第八种可能实现的方式中,所述中继设备根据所述第一目标设备消息,并通过所述扩展缓冲区状态报告资源向所述网络侧节点发送第一中继设备消息。
结合本发明实施例第一方面的第一种至第八种可能实现的方式,在本发明实施例的第一方面的第九种可能实现的方式中,所述第一中继设备消息还用于触发所述网络侧节点向所述中继设备发送第四授权信息;
所述中继设备根据所述第一目标设备消息向所述网络侧节点发送第一中继设备消息之后,执行以下步骤:
所述中继设备接收所述网络侧节点发送的所述第四授权信息,所述第四授权信息包括所述网络侧节点为所述中继设备分配的数据转发资源,所述数据转发资源用于所述中继设备转发所述待传输数据,以便所述中继设备通过所述数据转发资源将所述待传输数据转发至所述网络侧节点。
本发明实施例第二方面提供另一种资源请求方法,包括:
目标设备向中继设备发送第一目标设备消息,所述第一目标设备消息用于触发所述中继设备请求网络侧节点为所述目标设备分配数据传输资源;
所述目标设备接收所述网络侧节点发送的第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的所述数据传输资源;
其中,所述数据传输资源用于所述目标设备传输待传输数据。
本发明实施例第二方面,所述目标设备请求所述中继设备向所述网络侧节点为其申请用于传输所述待传输数据的所述数据传输资源,相比所述目标设备直接向所述网络侧节点申请所述数据传输资源而言,降低了所述目标设备的发
射能耗。
基于本发明实施例第二方面,在本发明实施例第二方面的第一种可能实现的方式中,若所述网络侧节点预先为所述目标设备配置了用于向所述中继设备发送所述第一目标设备消息的资源,即D2D链路缓冲区状态报告资源,则所述目标设备直接通过所述D2D链路缓冲区状态报告资源向所述中继设备发送所述第一目标设备消息,无需所述目标设备请求所述中继设备向所述网络侧节点为其申请所述D2D链路缓冲区状态报告资源,减少所述中继设备的处理步骤。
基于本发明实施例第二方面,在本发明实施例第二方面的第二种可能实现的方式中,若所述网络侧节点预先未为所述目标设备配置用于向所述中继设备发送所述第一目标设备消息的资源,即D2D链路缓冲区状态报告资源,则所述目标设备在向所述中继设备发送所述第一目标设备消息之前,执行以下步骤:
向所述中继设备发送第二目标设备消息,所述第二目标设备消息用于触发中继设备请求网络侧节点为所述目标设备配置D2D链路缓冲区状态报告资源;
接收所述网络侧节点发送的第二授权信息,所述第二授权信息包括所述网络侧节点为所述目标设备配置的所述D2D链路缓冲区状态报告资源。
本发明实施例第二方面的第二种可能实现的方式,实现所述目标设备请求所述中继设备代替其向所述网络侧节点申请所述D2D链路缓冲区状态报告资源,以便所述目标设备能够通过所述D2D链路缓冲区状态报告资源向所述中继设备发送所述第一目标设备消息。
结合本发明实施例第二方面的第一种或第二种可能实现的方式,在本发明实施例的第二方面的第三种可能实现的方式中,所述目标设备通过所述D2D链路缓冲区状态报告资源向所述中继设备发送第一目标设备消息。
本发明实施例第三方面提供另一种资源请求方法,包括:
网络侧节点接收中继设备发送的第一中继设备消息,所述第一中继设备消息用于触发所述网络侧节点向目标设备发送第一授权信息;
所述网络侧节点根据所述第一中继设备消息向所述目标设备发送所述第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的数
据传输资源;
其中,所述数据传输资源用于所述目标设备传输待传输数据。
本发明实施例第三方面,所述网络侧节点根据所述中继设备发送的所述第一中继设备消息为所述目标设备分配所述数据传输资源,并非根据所述目标设备发送的消息为其分配所述数据传输资源,确保所述目标设备获取所述数据传输资源的同时降低所述目标设备的发射能耗。
基于本发明实施例第三方面,在本发明实施例第三方面的第一种可能实现的方式中,若所述网络侧节点预先未为所述目标设备配置用于所述目标设备向所述中继设备发送第一目标设备消息的资源,即D2D链路缓冲区状态报告资源,则所述网络侧节点在接收所述中继设备发送的所述第一中继设备消息之前,还执行以下步骤:
接收中继设备发送的第二中继设备消息,所述第二中继设备消息用于触发所述网络侧节点向目标设备发送第二授权信息;
根据所述扩展请求消息向所述目标设备发送所述第二授权信息,所述第二授权信息包括所述网络侧节点为所述目标设备配置的D2D链路缓冲区状态报告资源;
其中,所述D2D链路缓冲区状态报告资源用于所述目标设备向所述中继设备发送第一目标设备消息。
本发明实施例第三方面的第一种可能实现的方式,实现所述网络侧节点根据所述中继设备发送的所述第二中继设备消息为所述中继设备配置所述D2D链路缓冲区状态报告资源,以便所述目标设备向所述网络侧节点发送所述第一目标设备消息。
结合本发明实施例第三方面的第一种可能实现的方式,在本发明实施例的第三方面的第二种可能实现的方式中,所述网络侧节点检测扩展请求消息资源上是否存在数据,并在检测到所述扩展请求消息资源上存在数据时,确定所述网络侧节点接收到的消息为所述第二中继设备消息,而非所述中继设备发送的其它消息,进而触发所述网络侧节点向所述目标设备发送所述第二授权信息。
结合本发明实施例第三方面的第一种或第二种可能实现的方式,在本发明实施例的第三方面的第三种可能实现的方式中,若所述网络侧节点预先为所述中继设备配置了用于向所述网络侧节点发送所述第一中继设备消息的资源,即
扩展缓冲区状态报告资源,则所述网络侧节点直接接收所述中继设备发送的所述第一中继设备消息,以便触发所述网络侧节点根据所述第一中继设备消息为所述目标设备分配所述数据传输资源。
结合本发明实施例第三方面的第一种至第三种可能实现的方式,在本发明实施例的第三方面的第四种可能实现的方式中,所述网络侧节点检测所述扩展缓冲区状态报告资源上是否存在数据,并在检测到所述扩展缓冲区状态报告资源上存在数据时,确定所述网络侧节点接收到的消息为所述第一中继设备消息,而非所述中继设备发送的其它消息,进而触发所述网络侧节点向所述目标设备发送所述第一授权信息。
结合本发明实施例第三方面的第一种至第三种可能实现的方式,在本发明实施例的第三方面的第五种可能实现的方式中,所述网络侧节点检测逻辑信道标识中是否存在第二预设逻辑信道标识,并在检测到存在所述第二预设逻辑信道标识时,确定所述网络侧节点接收到的消息为所述第一中继设备消息,而非所述中继设备发送的其它消息,进而触发所述网络侧节点向所述目标设备发送所述第一授权信息;
其中,所述第二预设逻辑信道标识为D2D通信标准协议在上行共享信道上为所述扩展缓冲区状态报告设置的标识。
结合本发明实施例第三方面的第一种至第五种可能实现的方式,在本发明实施例的第三方面的第六种可能实现的方式中,若所述网络侧节点预先未为所述中继设备配置用于向所述网络侧节点发送所述第一中继设备消息的资源,即扩展缓冲区状态报告资源,则所述网络侧节点在接收所述中继设备发送的所述第一中继设备消息之前,还执行以下步骤:
接收所述中继设备发送的第三中继设备消息,所述第三中继设备消息用于请求所述网络侧节点为所述中继设备配置扩展缓冲区状态报告资源;
根据所述第三中继设备消息向所述中继设备发送第三授权信息,所述第三授权信息包括所述网络侧节点为所述中继设备配置的所述扩展缓冲区状态报告资源;
其中,所述扩展缓冲区状态报告资源用于所述中继设备向所述网络侧节点发送第一中继设备消息。
本发明实施例的第三方面的第六种可能实现的方式,实现所述网络侧节点
根据所述中继设备发送的所述第三中继设备消息为所述中继设备配置所述扩展缓冲区状态报告资源,以便所述中继设备向所述网络侧节点发送所述第一中继设备消息。
结合本发明实施例第三方面的第一种至第六种可能实现的方式,在本发明实施例的第三方面的第七种可能实现的方式中,所述第一中继设备消息还用于触发所述网络侧节点向所述中继设备发送第四授权信息;
所述网络侧节点根据所述第一中继设备消息向所述目标设备发送所述第一授权信息之前,或同时,或之后,还执行以下步骤:
所述网络侧节点根据所述第一中继设备消息向所述中继设备发送所述第四授权信息,所述第四授权信息包括所述网络侧节点为所述中继设备分配的数据转发资源,所述数据转发资源用于所述中继设备转发所述待传输数据,以便所述中继设备通过所述数据转发资源将所述待传输数据转发至所述网络侧节点。
本发明实施例第四方面提供一种中继设备,包括:
报告接收单元,用于接收目标设备发送的第一目标设备消息,所述第一目标设备消息用于触发所述中继设备请求网络侧节点为所述目标设备分配数据传输资源;
消息发送单元,用于根据所述第一目标设备消息向所述网络侧节点发送第一中继设备消息,所述第一中继设备消息用于触发所述网络侧节点向所述目标设备发送第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的所述数据传输资源;
其中,所述数据传输资源用于所述目标设备传输待传输数据。
本发明实施例第四方面提供的中继设备用于实现本发明实施例第一方面提供的资源请求方法,在此不再赘述。
本发明实施例第五方面提供一种目标设备,包括:
消息发送单元,用于向中继设备发送第一目标设备消息,所述第一目标设备消息用于触发所述中继设备请求网络侧节点为所述目标设备分配数据传输资源;
授权信息接收单元,用于接收所述网络侧节点发送的第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的所述数据传输资源;
其中,所述数据传输资源用于所述目标设备传输待传输数据。
本发明实施例第五方面提供的目标设备用于实现本发明实施例第二方面提供的资源请求方法,在此不再赘述。
本发明实施例第六方面提供一种网络侧节点,包括:
报告接收单元,用于接收中继设备发送的第一中继设备消息,所述第一中继设备消息用于触发所述网络侧节点向目标设备发送第一授权信息;
授权信息发送单元,用于根据所述第一中继设备消息向所述目标设备发送所述第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的数据传输资源;
其中,所述数据传输资源用于所述目标设备传输待传输数据。
本发明实施例第六方面提供的目标设备用于实现本发明实施例第三方面提供的资源请求方法,在此不再赘述。
本发明实施例第七方面提供一种资源请求***,包括第四方面所述的中继设备、第五方面所述的目标设备和第六方面所述的网络侧节点,所述中继设备和所述目标设备在所述网络侧节点的网络覆盖范围内,所述目标设备为电量受限的设备,所述中继设备为电量不受限的设备。
在本发明实施例中,通过目标设备向中继设备发送第一目标设备消息;中继设备接收到第一目标设备消息时,根据第一目标设备消息向网络侧节点发送第一中继设备消息;网络侧节点接收第一中继设备消息,根据第一中继设备消息向目标设备发送第一授权信息,第一授权信息包括网络侧节点为目标设备分配的数据传输资源,实现中继设备代替目标设备向网络侧节点请求数据传输资源,无需目标设备直接向网络侧节点请求数据传输资源,进而降低目标设备的发射能耗,并确保目标设备获得传输资源。
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,显而易见地,下面描述中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LTE***架构下的D2D通信的网络架构图;
图2为本发明实施例一提供的资源请求方法的流程示意图;
图3为本发明实施例二提供的资源请求方法的流程示意图;
图4为本发明实施例三提供的资源请求方法的流程示意图;
图5为本发明实施例提供的一种中继设备的结构示意图;
图6为本发明实施例提供的一种目标设备的结构示意图;
图7为本发明实施例提供的一种网络侧节点的结构示意图;
图8为本发明实施例提供的另一种中继设备的结构示意图;
图9为本发明实施例提供的另一种目标设备的结构示意图;
图10为本发明实施例提供的另一种网络侧节点的结构示意图。
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,所描述的实施例仅仅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,都属于本发明保护的范围。
本发明实施例提供一种资源请求方法、设备、网络侧节点及***,可以应用于共站覆盖的D2D通信中的发送设备请求中继设备代替发送设备向网络侧请求资源,并接收网络侧分配资源的场景。其中,共站覆盖即中继设备与发送设备在同一网络侧的网络覆盖范围内。本发明实施例提供的资源请求方法、设备、网络侧节点及***可以应用在长期演进(Long Term Evolution,LTE)***、LTE-A***或未来可能的移动通信***下的共站覆盖的D2D通信中。本发明实施例主要针对应用于LTE***下的共站覆盖的D2D通信中的发送设备请求中继设备代替发送设备向网络侧请求资源,并接收网络侧分配资源的场景进行详细的介绍。
如图1所示,为LTE***架构下的共站覆盖的D2D通信的网络架构图,其中,基站为演进型Node B(Evolved Node B,eNB),UE1、UE2和UE3为在eNB网络覆盖下的多个用户设备。由图1可知,用户设备可以与eNB进行数据传输,用户之间也可以直接进行数据传输。通常,在某个用户设备进行传输数据之前,需要请求eNB为其分配数据传输资源,以便数据的正常传输。但是,该用户设备在向eNB发送请求的过程中,会消耗该用户设备一定的电
量,若该用户设备对能耗敏感或者电量受限,那么上述方式直接向eNB请求数据传输资源的方法会进一步加快该用户设备电量的消耗速度。
本发明实施例提供的资源请求方法,针对电量受限或对能耗敏感的用户设备,不直接向eNB请求数据传输资源,而是寻找一个中继设备代替该用户设备向eNB请求数据传输资源,并接收eNB分配的资源,从而节省该用户设备的发射能耗。
本发明实施例中的目标设备为需要数据传输资源的发送设备,可以包括但不限于手环、手表、智能可穿戴设备等电量受限并具有通信功能的用户设备,所述目标设备还可以包括电量受限的手机、平板电脑(Pad)。可以理解的是,电量受限的所述目标设备需要所述目标设备的用户对其频繁充电,否则所述目标设备的剩余电量将影响所述目标设备用户的正常通信。
本发明实施例中的中继设备为与所述目标设备距离较近的用户设备,并且所述中继设备与所述目标设备位于同一eNB的网络覆盖范围内,所述中继设备可以包括但不限于手机、平板电脑等具有通信功能的用户设备。可以理解的是,所述中继设备为电量不受限或对能耗不敏感的用户设备,即所述中继设备的剩余电量较多,不仅能够保证中继设备用户的正常通信,还能够协助其他设备的正常通信。
本发明实施例中的网络侧节点即为上述的eNB,还可以包括其他***下的基站或无线局域网接入点(wireless local network access point,WLAN AP)。所述中继设备和所述目标设备均在所述网络侧节点的网络覆盖内,所述网络侧节点为所述中继设备和所述目标设备分配或配置各种资源,以保证所述中继设备和所述目标设备的正常通信。
下面将结合图2至图4,对本发明实施例提供的资源请求方法进行详细的介绍。
请参见图2,为本发明实施例一提供的资源请求方法的流程示意图,如图2所示,本发明实施例一提供的方法可以包括下述101-105的内容。
101,目标设备检测所述目标设备的缓冲区中是否存在待传输数据。
具体的,所述目标设备检测所述目标设备的缓冲区中是否存在待传输数据。其中,缓冲区为暂时放置输出或输入数据的内存。所述待传输数据为待发
送数据,所述待发送数据为所述目标设备想要发送至其他用户设备的数据,或者所述目标设备想要发送至网络侧节点的上行数据。所述待发送数据可由所述目标设备根据用户对所述目标设备的操作指令确定,也可由所述目标设备根据自主的通信需求确定。若所述目标设备检测到存在所述待传输数据,则表明所述目标设备要向其他用户设备或所述网络侧节点传输数据,但是所述目标设备传输数据需要数据传输资源,现有技术中,所述目标设备直接向所述网络侧节点请求所述数据传输资源,但是对于电量受限的目标设备会加快目标设备的电量消耗速度,因此本发明实施例采用与所述目标设备距离较近的中继设备代替所述目标设备向所述网络侧节点请求所述数据传输资源。
102,当所述目标设备检测到存在所述待传输数据时,向中继设备发送第一目标设备消息。
具体的,所述第一目标设备消息为D2D链路缓冲区状态报告。通常,链路为从一个节点到相邻另外一个节点的线路,而中间没有其他任何的交换节点,线路可以是有线线路,也可以是无线线路,由此可知,本发明实施例中的D2D链路为D2D通信中两个用户设备之间的无线线路,两个用户设备之间的接口为PC5口,用于两个用户设备之间数据、信息的传输,详见第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)通信协议中对D2D通信中的PC5口的定义。
缓冲区状态报告(Buffer Status Report,BSR)用于向网络侧节点提供用户设备在其数据缓冲区中待发送的缓存数据量。所述D2D链路缓冲区状态报告(Side Link Buffer Status Report,SL-BSR)用于所述目标设备向所述中继设备提供所述目标设备在其缓冲区中所述待传输数据的缓存数据量。所述目标设备在检测到存在所述待传输数据时,向所述中继设备发送D2D链路缓冲区状态报告,告知所述中继设备所述待传输数据的数据量。若所述网络侧节点为所述目标设备与所述中继设备之间的PC5口配置了用于所述目标设备向所述中继设备发送所述D2D链路缓冲区状态报告的资源,即D2D链路缓冲区状态报告资源,那么所述目标设备通过所述目标设备与所述中继设备之间的PC5口,并使用所述D2D链路缓冲区状态报告资源向所述中继设备发送所述第一目标消息,即所述D2D链路缓冲区状态报告。在本发明实施例中,默认所述网络侧节点已为所述目标设备与所述中继设备之间的PC5口预先配置了所述D2D
链路缓冲区状态报告资源,这样所述目标设备便可在检测到存在所述待传输数据时,直接向所述中继设备发送所述D2D链路缓冲区状态报告。所述D2D链路缓冲区状态报告用于触发所述中继设备请求所述网络侧节点为所述目标设备分配数据传输资源,改变了现有技术中所述目标设备直接向所述网络侧节点请求为其分配所述数据传输资源的方式。
103,所述中继设备接收所述第一目标设备消息,向网络侧节点发送第一中继设备消息。
具体的,所述第一中继设备消息为扩展缓冲区状态报告。举例说明,所述中继设备对接收到的消息进行识别,判断其是否为所述D2D链路缓冲区状态报告。可选的,所述中继设备通过检测所述目标设备与所述中继设备之间的PC5口的所述D2D链路缓冲区状态报告资源上是否存在数据,并在检测到所述D2D链路缓冲区状态报告资源上存在数据时,确定所述中继设备接收到的消息为所述D2D链路缓冲区状态报告。其中,数据的大小在此不做限定。可选的,所述中继设备检测D2D逻辑信道标识中是否存在第一预设逻辑信道标识,并在检测到存在所述第一预设逻辑信道标识时,确定所述中继设备接收到的消息为所述D2D链路缓冲区状态报告。其中,所述第一预设逻辑信道标识为D2D通信标准协议中在D2D链路共享信道(Side Link Shared Channel,SL-SCH)上为所述D2D链路缓冲区状态报告设定的标识。
具体的,当所述中继设备接收到所述D2D链路缓冲区状态报告时,所述中继设备获取所述网络侧节点为所述中继设备与所述网络侧之间的Uu口配置的扩展缓冲区状态报告资源。其中,Uu口为所述中继设备与所述网络侧节点之间的接口,用于所述中继设备与所述网络侧节点之间数据、信息的传输,详见3GPP通信协议中对Uu口的定义。所述扩展缓冲区状态报告资源用于所述中继设备向所述网络侧节点发送所述第一中继设备消息,在本发明实施例中,默认所述网络侧节点已预先为所述中继设备与所述网络侧节点之间的Uu口配置了所述扩展缓冲区状态报告资源。
所述中继设备通过所述中继设备与所述网络侧节点之间的Uu口,并使用所述扩展缓冲区状态报告资源向所述网络侧节点发送所述扩展缓冲区状态报告,所述扩展缓冲区状态报告用于触发所述网络侧节点向所述目标设备发送第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的所
述数据传输资源。
104,所述网络侧节点接收所述第一中继设备消息,向所述目标设备发送第一授权信息。
具体的,所述第一授权信息为数据传输资源授权信息。举例说明,所述网络侧节点对接收到的消息进行识别,判断其是否为所述扩展缓冲区状态报告。可选的,所述网络侧节点检测所述扩展缓冲区状态报告资源上是否存在数据,并在检测到所述扩展缓冲区状态报告资源上存在数据时,确定所述网络侧节点接收到的消息为所述扩展缓冲区状态报告。其中,数据的大小在此不做限定。可选的,所述网络侧节点检测逻辑信道标识中是否存在第二预设逻辑信道标识,并在检测到存在所述第二预设逻辑信道标识时,确定所述网络侧节点接收到的消息为所述扩展缓冲区状态报告。其中,所述第二预设逻辑信道标识为D2D通信标准协议在上行共享信道(Up Link Shared Channel,UL-SCH)上为所述扩展缓冲区状态报告设置的标识。可选的,当所述网络侧节点接收到所述预设的逻辑信道标识指示的媒体接入控制(Media Access Control,MAC)包时,确定所述网络侧节点接收到所述扩展缓冲区状态报告。
具体的,当所述网络侧节点接收到所述扩展缓冲区状态报告时,所述网络侧节点向所述目标设备发送第一授权信息,即所述数据传输资源授权信息。所述数据传输资源授权信息包括所述网络侧节点为所述目标设备分配的数据传输资源,所述数据传输资源用于所述目标设备传输所述待传输数据。
105,所述目标设备接收所述第一授权信息。
具体的,所述目标设备接收所述第一授权信息,即所述数据传输资源授权信息,所述数据传输资源授权信息包括所述网络侧节点为所述目标设备分配的所述数据传输资源。可选的,所述数据传输资源用于所述目标设备向所述中继设备传输所述待传输数据,在所述目标设备接收到所述数据传输资源授权信息时,所述目标设备通过PC5口,以及所述数据传输资源向所述中继设备发送所述待传输数据。所述中继设备在接收到所述目标设备发送的所述待传输数据时,可将所述待传输数据存储在所述中继设备的缓冲区中,也可将所述待传输数据转发至所述网络侧节点。可选的,所述数据传输资源用于所述目标设备向所述网络侧节点传输所述待传输数据,在所述目标设备接收到所述数据传输资源授权信息时,所述目标设备通过所述目标设备与所述网络侧节点之间的Uu
口,以及所述数据传输资源向所述网络侧节点发送所述待传输数据。
在本发明实施例中,通过目标设备在检测到目标设备的缓冲区中存在待传输数据时,向中继设备发送第一目标设备消息;中继设备接收到第一目标设备消息时,根据第一目标设备消息向网络侧节点发送第一中继设备消息;网络侧节点接收第一中继设备消息,根据第一中继设备消息向目标设备发送第一授权信息,第一授权信息包括网络侧节点为目标设备分配的数据传输资源,实现中继设备代替目标设备向网络侧节点请求数据传输资源,从而在目标设备获得传输资源的同时降低目标设备的能耗。
请参见图3,为本发明实施例二提供的资源请求方法的流程示意图,如图3所示,本发明实施例二提供的方法可以包括下述201-212的内容。
201,目标设备检测所述目标设备的缓冲区中是否存在待传输数据。
具体的,所述目标设备检测所述目标设备的缓冲区中是否存在待传输数据。其中,缓冲区为暂时放置输出或输入数据的内存。所述待传输数据为待发送数据,所述待发送数据为所述目标设备想要发送至其他用户设备的数据,或者所述目标设备想要发送至网络侧节点的上行数据。所述待发送数据可由所述目标设备根据用户对所述目标设备的操作指令确定,也可由所述目标设备根据自主的通信需求确定。若所述目标设备检测到存在所述待传输数据,则表明所述目标设备要向其他用户设备或所述网络侧节点传输数据,但是所述目标设备传输数据需要数据传输资源,现有技术中,所述目标设备直接向所述网络侧节点请求所述数据传输资源,但是对于电量受限的目标设备会加快目标设备的电量消耗速度,因此本发明实施例采用与所述目标设备距离较近的中继设备代替所述目标设备向所述网络侧节点请求所述数据传输资源。
202,当所述目标设备检测到存在所述待传输数据时,向中继设备发送第二目标消息。
具体的,所述第二目标设备消息为D2D链路请求消息。通常,链路为从一个节点到相邻另外一个节点的线路,而中间没有其他任何的交换节点,线路可以是有线线路,也可以是无线线路,由此可知,本发明实施例中的D2D链路为D2D通信中两个用户设备之间的无线线路,两个用户设备之间的接口为PC5口,用于两个用户设备之间数据、信息的传输。
调度请求(Scheduling Request,SR)用于请求上行共享信道资源用于发送上行数据所用,一旦触发了调度请求,它就会一直处于挂起的状态直到它被取消为止,也就是说,当这次调度请求得到满足或响应,那么这次调度请求被取消;或者这个调度请求没有必要了,那么这次调度请求被取消。所述D2D链路请求消息即为D2D链路调度请求(Side Link Scheduling Request,SL-SR),用于D2D链路上请求所述中继设备向所述网络侧节点请求用于所述目标设备向所述中继设备发送消息、数据等的D2D链路信道资源。
具体的,当所述目标设备检测到存在所述待传输数据时,所述目标设备通过所述目标设备与所述中继设备之间的PC5口向所述中继设备发送所述第二目标设备消息,即所述D2D链路请求消息。所述D2D链路请求消息用于触发所述中继设备请求所述网络侧节点为所述目标设备配置D2D链路缓冲区状态报告资源。在本发明实施例中,所述网络侧节点并没有预先为所述目标设备配置所述D2D链路缓冲区状态报告资源,因此需要所述目标设备通过所述中继设备为其请求所述D2D链路缓冲区状态报告资源。
203,所述中继设备接收所述第二目标设备消息,向网络侧节点发送第二中继设备消息。
具体的,所述第二中继设备消息为扩展请求消息。举例说明,所述中继设备对接收到的消息进行识别,判断其是否为所述D2D链路请求消息。可选的,所述中继设备检测D2D链路调度请求资源上是否存在数据,并在所述D2D链路调度请求资源上存在数据时,确定所述中继设备接收到的消息为所述D2D链路请求消息。其中,数据的大小在此不做限定。所述D2D链路调度请求资源用于所述目标设备向所述中继设备发送所述D2D链路请求消息,在本发明实施例中,所述网络侧节点预先为所述目标设备与所述中继设备之间的PC5口配置了所述D2D链路调度请求资源,以便所述目标设备向所述中继设备发送所述D2D链路请求消息。
当所述中继设备接收到所述D2D链路请求消息时,所述中继设备通过所述中继设备与所述网络侧节点之间的Uu口向所述网络侧节点发送所述第二中继设备消息。其中,Uu口为所述中继设备与所述网络侧节点之间的接口,用于所述中继设备与所述网络侧节点之间信息的传输。所述扩展请求消息用于触发所述网络侧节点向所述目标设备发送第二授权信息,所述第二授权信息包括
所述网络侧节点为所述目标设备配置的所述D2D链路缓冲区状态报告资源,所述D2D链路缓冲区状态报告资源用于所述目标设备通过PC5口向所述中继设备发送所述D2D链路缓冲区状态报告。
204,所述网络侧节点接收所述第二中继设备消息,向所述目标设备发送第二授权信息。
具体的,所述第二授权信息为D2D链路缓冲区状态报告授权信息。举例说明,所述网络侧节点对接收到的消息进行识别,判断其是否为所述扩展请求消息。其中,所述扩展请求消息即为扩展调度请求,用于请求所述网络侧节点为所述目标设备分配所述目标设备向所述中继设备发送D2D链路缓冲区状态报告的资源,即发送第一中继设备消息的资源。可选的,所述网络侧节点检测扩展调度请求资源上是否存在数据,并在检测到所述扩展调度请求资源上存在数据时,确定所述网络侧节点接收到的消息为所述扩展请求消息。其中,数据的大小在此不做限定。所述扩展调度请求资源用于所述中继设备向所述网络侧节点发送所述扩展调度请求,在本发明实施例中,所述网络侧节点预先为所述中继设备与所述网络侧节点之间的Uu口配置了所述扩展调度请求资源,以便所述中继设备向所述网络侧节点发送所述扩展请求消息。
当所述网络侧节点接收到所述第二中继设备消息时,向所述目标设备发送所述第二授权信息,即所述D2D链路缓冲区状态报告资源授权信息。所述D2D链路缓冲区状态报告资源授权信息包括所述网络侧节点为所述目标设备配置的D2D链路缓冲区状态报告资源,所述D2D链路缓冲区状态报告资源用于所述目标设备向所述中继设备发送所述D2D链路缓冲区状态报告。
205,所述目标设备接收所述第二授权信息,向所述中继设备发送第一目标设备消息。
具体的,所述第一目标设备消息为D2D链路缓冲区状态报告。缓冲区状态报告用于向网络侧节点提供用户设备在其数据缓冲区中待发送的缓存数据量。所述D2D链路缓冲区状态报告用于所述目标设备向所述中继设备提供所述目标设备在其缓冲区中所述待传输数据的缓存数据量。
当所述目标设备接收到所述D2D链路缓冲区状态报告授权信息时,通过所述目标设备与所述中继设备之间的PC5口,并使用所述D2D链路缓冲区状态报告授权信息中的所述D2D链路缓冲区状态报告资源,向所述中继设备发
送D2D链路缓冲区状态报告。所述D2D链路缓冲区状态报告用于触发所述中继设备请求所述网络侧节点为所述目标设备分配数据传输资源,改变了现有技术中所述目标设备直接向所述网络侧节点请求为其分配所述数据传输资源的方式。
在本发明实施例中,所述网络侧节点并没有为所述目标设备与所述中继设备之间的PC5口预先配置所述D2D链路缓冲区状态报告资源,因此所述目标设备需请求所述D2D链路缓冲区状态报告资源,此过程并不是所述目标设备直接向所述网络侧节点请求的,而是通过所述中继设备向所述网络侧节点请求,相比所述目标设备直接向所述网络侧节点请求,通过所述中继设备向所述网络侧节点请求,会大大降低所述目标设备的能耗。实施例一中,所述网络侧节点已为所述目标设备与所述中继设备之间的PC5口预先配置了所述D2D链路缓冲区状态报告资源,因此实施例一中所述目标设备可以直接使用所述D2D链路缓冲区状态报告资源向所述中继设备发送所述D2D链路缓冲区状态报告。而本发明实施例是在所述目标设备接收到所述D2D链路缓冲区状态报告资源时,使用所述D2D链路缓冲区状态报告资源向所述中继设备发送所述D2D链路缓冲区状态报告。
206,所述中继设备接收所述第一目标设备消息,向所述网络侧节点发送第三中继设备消息。
具体的,所述第三中继设备消息为扩展缓冲区状态报告请求消息。举例说明,所述中继设备对接收到的消息进行识别,判断其是否为所述D2D链路缓冲区状态报告。可选的,所述中继设备通过检测所述目标设备与所述中继设备之间的PC5口的所述D2D链路缓冲区状态报告资源上是否存在数据,并在检测到所述D2D链路缓冲区状态报告资源上存在数据时,确定所述中继设备接收到的消息为所述D2D链路缓冲区状态报告。其中,数据的大小在此不做限定。可选的,所述中继设备检测D2D逻辑信道标识中是否存在第一预设逻辑信道标识,并在检测到存在所述第一预设逻辑信道标识时,确定所述中继设备接收到的消息为所述D2D链路缓冲区状态报告。其中,所述第一预设逻辑信道标识为D2D通信标准协议中在D2D链路共享信道上为所述D2D链路缓冲区状态报告设定的标识。
具体的,在本发明实施例中,所述网络侧节点并未预先为所述中继设备与
所述网络侧节点之间的Uu口配置扩展缓冲区状态报告资源,所述扩展缓冲区状态报告资源用于所述中继设备向所述网络侧节点发送扩展缓冲区状态报告,因此所述中继设备在接收到所述D2D链路缓冲区状态报告时,不能直接向所述网络侧节点发送所述扩展缓冲区状态报告,需要先向所述网络侧节点请求所述扩展缓冲区状态报告资源。所述中继设备通过向所述网络侧节点发送所述扩展缓冲区状态报告请求消息来请求所述扩展缓冲区状态报告资源,所述扩展缓冲区状态报告请求消息即为扩展缓冲区状态报告调度请求,用于请求所述网络侧节点为所述中继设备配置所述扩展缓冲区状态报告资源。
207,所述网络侧节点接收所述第三中继设备消息,向所述中继设备发送第三授权信息。
具体的,所述第三授权信息为扩展缓冲区状态报告资源授权信息。所述网络侧节点检测是否接收到所述第三中继设备消息,并在接收到所述第三中继设备消息时,向所述中继设备发送所述第三授权信息,即所述扩展缓冲区状态报告资源授权信息。所述扩展缓冲区状态报告资源授权信息包括所述网络侧节点为所述中继设备配置的所述扩展缓冲区状态报告资源。
208,所述中继设备接收所述第三授权信息,向所述网络侧节点发送第一中继设备消息。
具体的,所述第一中继设备消息为扩展缓冲区状态报告。所述中继设备接收所述第三授权信息,通过所述中继设备与所述网络侧节点之间的Uu口,并使用所述扩展缓冲区状态报告资源授权信息中的所述扩展缓冲区状态报告资源向所述网络侧节点发送所述第一中继设备消息,即所述扩展缓冲区状态报告。所述扩展缓冲区状态报告用于触发所述网络侧节点向所述目标设备发送数据传输资源授权信息,所述数据传输资源授权信息包括所述网络侧节点为所述目标设备分配的所述数据传输资源。
在本发明实施例中,所述网络侧节点并未预先为所述中继设备与所述网络侧节点之间的Uu口配置所述扩展缓冲区状态报告资源,因此所述中继设备不能直接向所述网络侧节点发送所述扩展缓冲区状态报告,需向所述网络侧节点请求所述扩展缓冲区状态报告资源。实施例一中,所述网络侧节点已预先为所述中继设备与所述网络侧节点之间的Uu口配置了所述扩展缓冲区状态报告资源,因此所述中继设备便可直接使用所述扩展缓冲区状态报告资源向所述网络
侧节点发送所述扩展缓冲区状态报告。
209,所述网络侧节点接收所述第一中继设备消息,向所述目标设备发送第一授权信息。
具体的,所述第一授权信息为数据传输资源授权信息。举例说明,所述网络侧节点对接收到的消息进行识别,判断其是否为所述扩展缓冲区状态报告。可选的,所述网络侧节点检测所述扩展缓冲区状态报告资源上是否存在数据,并在检测到所述扩展缓冲区状态报告资源上存在数据时,确定所述网络侧节点接收到的消息为所述扩展缓冲区状态报告。其中,数据的大小在此不做限定。可选的,所述网络侧节点检测逻辑信道标识中是否存在第二预设逻辑信道标识,并在检测到存在所述第二预设逻辑信道标识时,确定所述网络侧节点接收到所述扩展缓冲区状态报告。其中,所述第二预设逻辑信道标识为D2D通信标准协议在上行共享信道上为所述扩展缓冲区状态报告设置的标识。可选的,当所述网络侧节点接收到所述预设的逻辑信道标识指示的媒体接入控制包时,确定所述网络侧节点接收到所述扩展缓冲区状态报告。
具体的,当所述网络侧节点接收到所述第一中继设备消息时,所述网络侧节点向所述目标设备发送第一授权信息,即所述数据传输资源授权信息。所述数据传输资源授权信息包括所述网络侧节点为所述目标设备分配的数据传输资源,所述数据传输资源用于所述目标设备传输所述待传输数据。
210,所述目标设备接收所述第一授权信息。
具体的,所述目标设备接收所述第一授权信息,即所述数据传输资源授权信息,所述数据传输资源授权信息包括所述网络侧节点为所述目标设备分配的所述数据传输资源。所述数据传输资源用于所述目标设备向所述中继设备传输所述待传输数据,在所述目标设备接收到所述数据传输资源授权信息时,所述目标设备通过PC5口,以及所述数据传输资源向所述中继设备发送所述待传输数据。
211,所述网络侧节点向所述中继设备发送第四授权信息。
具体的,所述第四授权信息为数据转发资源授权信息。所述扩展缓冲区状态报告消息还用于触发所述网络侧节点向所述中继设备发送数据转发资源授权信息。所述网络侧节点在接收到所述中继设备发送的所述扩展缓冲区状态报告时,向所述中继设备发送所述第四授权信息,即所述数据转发资源授权信息。
所述数据转发资源授权信息包括所述网络侧节点为所述中继设备分配的数据转发资源,所述数据转发资源用于所述中继设备转发所述待传输数据。
212,所述中继设备接收所述第四授权信息。
具体的,所述中继设备接收所述数据转发资源授权信息。若也接收到所述目标设备传输的所述待传输数据,则通过所述中继设备与所述网络侧节点之间的Uu口,使用所述数据转发资源授权信息中的所述数据转发资源,将所述待传输数据传输至所述网络侧节点。
在本发明实施例中,所述目标设备并没有直接向所述网络侧节点发送调度请求和缓冲区状态报告,而是向与所述目标设备距离较近的所述中继设备发送所述D2D链路请求消息和所述D2D链路缓冲区状态报告,相比直接向所述网络侧节点发送调度请求和缓冲区状态报告,大大降低了所述目标设备的能耗。
在本发明实施中,通过目标设备向中继设备发送D2D链路请求消息,并在接收到D2D链路缓冲区状态报告授权信息时,向中继设备发送D2D链路缓冲区状态报告;中继设备接收到D2D链路缓冲区状态报告时,根据D2D链接缓冲区状态报告向网络侧节点发送扩展缓冲区状态报告;网络侧节点接收扩展缓冲区状态报告,根据扩展缓冲区状态报告向目标设备发送数据传输资源授权信息,数据传输资源授权信息包括网络侧节点为目标设备分配的数据传输资源,实现中继设备代替目标设备向网络侧节点请求资源,从而在目标设备获得传输资源的同时降低目标设备的能耗。
请参见图4,为本发明实施例三提供的资源请求方法的流程示意图,如图4所示,本发明实施例三提供的方法可以包括下述301-315的内容。
301,目标设备检测所述目标设备的缓冲区中是否存在待传输数据。
302,当所述目标设备检测到存在所述待传输数据时,向中继设备发送第二目标消息。
303,所述中继设备接收所述第二目标设备消息,向网络侧节点发送第二中继设备消息。
304,所述网络侧节点接收所述第二中继设备消息,向所述目标设备发送第二授权信息。
305,所述目标设备接收所述第二授权信息,向所述中继设备发送第一目标设备消息。
306,所述中继设备接收所述第一目标设备消息,向所述网络侧节点发送第三中继设备消息。
307,所述网络侧节点接收所述第三中继设备消息,向所述中继设备发送第三授权信息。
308,所述中继设备接收所述第三授权信息,向所述网络侧节点发送第一中继设备消息。
309,所述网络侧节点接收所述第一中继设备消息,向所述目标设备发送第一授权信息。
310,所述目标设备接收所述第一授权信息。
本发明实施例中的步骤301-步骤310的具体实现过程可参见图3所示实施例二中的步骤201-步骤210的具体描述,在此不再赘述。
311,所述中继设备向所述网络侧节点发送第四中继设备消息。
具体的,所述第四中继设备消息为数据转发请求消息。本发明实施例与实施例二不同的是,实施例二中所述网络侧节点根据所述扩展缓冲区状态报告为所述中继设备分配了数据转发资源授权信息,即所述网络侧节点为所述中继设备分配了数据转发资源,所述中继设备可直接使用所述数据转发资源,但是本发明实施例中,所述网络侧节点并未根据所述扩展缓冲区状态报告为所述中继设备分配所述数据转发资源,因此所述中继设备需向所述网络侧节点请求所述数据转发资源,所述中继设备首先向所述网络侧节点发送所述数据转发请求消息,即数据转发调度请求,用于请求所述网络侧节点为所述中继设备分配所述数据转发资源。
312,所述网络侧节点接收所述第四中继设备消息,向所述中继设备发送第四授权信息。
具体的,所述第四授权信息为数据转发请求授权信息。所述网络侧节点接收所述数据转发请求消息,并根据所述数据转发请求消息向所述中继设备发送所述数据转发请求授权信息,所述数据转发请求授权信息包括所述网络侧节点为所述中继设备配置的用于发送缓冲区状态报告的资源。
313,所述中继设备接收所述第四授权信息,向所述网络侧节点发送第五
中继设备消息。
具体的,所述第五中继设备消息为缓冲区状态报告。所述中继设备接收所述请求授权信息,通过所述中继设备与所述网络侧节点的Uu口,并使用所述网络侧节点为所述中继设备配置的用于发送缓冲区状态报告的资源,向所述网络侧节点发送所述缓冲区状态报告,所述缓冲区状态报告用于告知所述网络侧节点所述中继设备的缓冲区中的所述待传输数据的缓存数据量,并请求所述网络侧节点根据所述缓冲区状态报告为所述中继设备分配所述数据转发资源,所述数据转发资源用于所述中继设备转发所述待传输数据。
314,所述网络侧节点接收所述第五中继设备消息,向所述中继设备发送第五授权信息。
具体的,所述第五授权信息为数据转发资源授权信息。所述网络侧节点接收所述缓冲区状态报告,根据所述缓冲区状态报告向所述中继设备发送所述数据转发资源授权信息,所述数据转发资源授权信息包括所述网络侧节点为所述中继设备分配的数据转发资源。
315,所述中继设备接收所述第五授权信息。
具体的,所述中继设备接收所述第五授权信息,即所述数据转发资源授权信息。若也接收到所述目标设备传输的所述待传输数据,则通过所述中继设备与所述网络侧节点之间的Uu口,使用所述数据转发资源授权信息中的所述数据转发资源,将所述待传输数据传输至所述网络侧节点。
在本发明实施例中,所述目标设备并没有直接向所述网络侧节点发送调度请求和缓冲区状态报告,而是向与所述目标设备距离较近的所述中继设备发送所述D2D链路请求消息和所述D2D链路缓冲区状态报告,相比直接向所述网络侧节点发送调度请求和缓冲区状态报告,大大降低了所述目标设备的能耗。
在本发明实施中,通过目标设备向中继设备发送D2D链路请求消息,并在接收到D2D链路缓冲区状态报告授权信息时,向中继设备发送D2D链路缓冲区状态报告;中继设备接收到D2D链路缓冲区状态报告时,根据D2D链路缓冲区状态报告向网络侧节点发送扩展缓冲区状态报告;网络侧节点接收扩展缓冲区状态报告,根据扩展缓冲区状态报告向目标设备发送数据传输资源授权信息,数据传输资源授权信息包括网络侧节点为目标设备分配的数据传输资
源,实现中继设备代替目标设备向网络侧节点请求资源,从而在目标设备获得传输资源的同时降低目标设备的能耗。
需要说明的是,实施例一所示的方法为优选的资源请求方法,即所述网络侧节点预先为所述目标设备配置了所述D2D链接缓冲区状态报告资源,并为所述中继设备配置了所述扩展缓冲区状态报告资源。实施例二所示的方法,所述目标设备需要请求所述D2D链接缓冲区状态报告资源,并且所述中继设备需要请求所述扩展缓冲区状态报告资源。实施例三所示的方法,在实施例二的基础上,但是实施例三中所述网络侧节点并未在接收到所述扩展缓冲区状态报告时,为所述中继设备分配所述数据转发资源,因此实施例三中的所述中继设备需向所述网络侧节点请求所述数据转发资源。
请参见图5,为本发明实施例提供的一种中继设备的结构示意图。图5对应的实施例提供的中继设备1可以是实施例一至实施例三提供的中继设备。所述中继设备包括消息接收单元11、消息发送单元12和授权信息接收单元13。
消息接收单元11,用于接收目标设备发送的第一目标设备消息。
具体实现中,所述第一目标设备消息为D2D链路缓冲区状态报告。所述消息接收单元11对接收到的消息进行识别,判断其是否为所述D2D链路缓冲区状态报告。可选的,所述消息接收单元11通过检测所述目标设备与所述中继设备1之间的PC5口的所述D2D链路缓冲区状态报告资源上是否存在数据,并在检测到所述D2D链路缓冲区状态报告资源上存在数据时,确定所述消息接收单元11接收到的消息为所述D2D链路缓冲区状态报告。其中,数据的大小在此不做限定。可选的,所述消息接收单元11检测D2D逻辑信道标识中是否存在第一预设逻辑信道标识,并在检测到存在所述第一预设逻辑信道标识时,确定所述消息接收单元11接收到的消息为所述D2D链路缓冲区状态报告。其中,所述第一预设逻辑信道标识为D2D通信标准协议中在D2D链路共享信道上为所述D2D链路缓冲区状态报告设定的标识。
消息发送单元12,用于根据所述第一目标设备消息向所述网络侧节点发送第一中继设备消息。
具体实现中,所述第一中继设备消息为扩展缓冲区状态报告。当所述消息接收单元11接收到所述D2D链路缓冲区状态报告时,所述中继设备1获取所
述网络侧节点为所述中继设备与所述网络侧之间的Uu口配置的扩展缓冲区状态报告资源。其中,Uu口为所述中继设备1与所述网络侧节点之间的接口,用于所述中继设备1与所述网络侧节点之间数据、信息的传输。所述扩展缓冲区状态报告资源用于所述消息发送单元12向所述网络侧节点发送所述第一中继设备消息,在本发明实施例中,默认所述网络侧节点已预先为所述中继设备1与所述网络侧节点之间的Uu口配置了所述扩展缓冲区状态报告资源。
所述消息发送单元12通过所述中继设备1与所述网络侧节点之间的Uu口,并使用所述扩展缓冲区状态报告资源向所述网络侧节点发送所述扩展缓冲区状态报告,所述扩展缓冲区状态报告用于触发所述网络侧节点向所述目标设备发送第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的所述数据传输资源。
所述消息接收单元11,还用于接收目标设备发送的第二目标设备消息。
具体实现中,所述第二目标设备消息为D2D链路请求消息。所述消息接收单元11对接收到的消息进行识别,判断其是否为所述D2D链路请求消息。可选的,所述消息接收单元11检测D2D链路调度请求资源上是否存在数据,并在所述D2D链路调度请求资源上存在数据时,确定所述消息接收单元11接收到的消息为所述D2D链路请求消息。其中,数据的大小在此不做限定。所述D2D链路调度请求资源用于所述目标设备向所述中继设备1发送所述D2D链路请求消息,在本发明实施例中,所述网络侧节点预先为所述目标设备与所述中继设备1之间的PC5口配置了所述D2D链路调度请求资源,以便所述目标设备向所述中继设备1发送所述D2D链路请求消息。
所述消息发送单元12,还用于根据所述第二目标设备消息向所述网络侧节点发送第二中继设备消息,所述第二中继设备消息用于触发所述网络侧节点向所述目标设备发送第二授权信息,所述第二授权信息包括所述网络侧节点为所述目标设备配置的所述D2D链路缓冲区状态报告资源。
具体实现中,所述第二中继设备消息为扩展请求消息。当所述消息接收单元11接收到所述D2D链路请求消息时,所述消息发送单元12通过所述中继设备与所述网络侧节点之间的Uu口向所述网络侧节点发送所述第二中继设备消息。其中,Uu口为所述中继设备1与所述网络侧节点之间的接口,用于所述中继设备1与所述网络侧节点之间信息的传输。所述扩展请求消息用于触发
所述网络侧节点向所述目标设备发送第二授权信息,所述第二授权信息包括所述网络侧节点为所述目标设备配置的所述D2D链路缓冲区状态报告资源,所述D2D链路缓冲区状态报告资源用于所述目标设备通过PC5口向所述中继设备1发送所述D2D链路缓冲区状态报告。
所述消息发送单元12,还用于向所述网络侧节点发送第三中继设备消息,所述第三中继设备消息用于请求所述网络侧节点为所述中继设备配置扩展缓冲区状态报告资源。
具体实现中,所述第三中继设备消息为扩展缓冲区状态报告请求消息。若所述网络侧节点此时并未预先为所述中继设备与所述网络侧节点之间的Uu口配置扩展缓冲区状态报告资源,所述扩展缓冲区状态报告资源用于所述中继设备向所述网络侧节点发送扩展缓冲区状态报告,则所述消息接收单元11在接收到所述D2D链路缓冲区状态报告时,所述消息发送单元12不能直接向所述网络侧节点发送所述扩展缓冲区状态报告,需要所述消息发送单元12先向所述网络侧节点请求所述扩展缓冲区状态报告资源。所述消息发送单元12通过向所述网络侧节点发送所述扩展缓冲区状态报告请求消息来获取所述扩展缓冲区状态报告资源,所述扩展缓冲区状态报告请求消息即为扩展缓冲区状态报告调度请求,用于请求所述网络侧节点为所述中继设备配置所述扩展缓冲区状态报告资源。
授权信息接收单元13,用于接收所述网络侧节点发送的第三授权信息,所述第三授权信息包括所述网络侧节点为所述中继设备配置的所述扩展缓冲区状态报告资源。
具体实现中,所述第三授权信息为扩展缓冲区状态报告资源授权信息。
所述消息发送单元12具体用于根据所述第一目标设备消息,并通过所述扩展缓冲区状态报告资源向所述网络侧节点发送第一中继设备消息。
所述授权信息接收单元13,还用于接收所述网络侧节点发送的所述第四授权信息,所述第四授权信息包括所述网络侧节点为所述中继设备分配的数据转发资源,所述数据转发资源用于所述中继设备转发所述待传输数据。
具体实现中,所述第四授权信息为数据转发资源授权信息。所述第一中继设备消息还用于触发所述网络侧节点向所述中继设备发送第四授权信息。所述授权信息接收单元13接收所述网络侧节点发送的所述数据转发资源授权信
息,所述数据转发资源授权信息包括所述网络侧节点为所述中继设备分配的数据转发资源,所述数据转发资源用于所述中继设备转发所述待传输数据。若所述中继设备1也接收到所述目标设备传输的所述待传输数据,则通过所述中继设备1与所述网络侧节点之间的Uu口,使用所述数据转发资源授权信息中的所述数据转发资源,将所述待传输数据传输至所述网络侧节点。
在本发明实施例中,通过中继设备接收到目标设备发送的D2D链路缓冲区状态报告,根据D2D链路缓冲区状态报告向网络侧节点发送扩展缓冲区状态报告,扩展缓冲区状态报告用于请求网络侧节点为目标设备分配数据传输资源,从而实现中继设备代替目标设备向网络侧节点请求数据传输资源,进而在目标设备获得传输资源的同时降低目标设备的能耗。
请参见图6,为本发明实施例提供的一种目标设备的结构示意图。图6对应的实施例提供的目标设备2可以是实施例一至实施例三提供的目标设备。所述目标设备包括消息发送单元21和授权信息接收单元22。
消息发送单元21,用于向中继设备发送第一目标设备消息。
具体实现中,在所述消息发送单元21向中继设备发送所述第一目标设备消息之前,所述目标设备2检测所述目标设备的缓冲区中是否存在待传输数据。其中,缓冲区为暂时放置输出或输入数据的内存。所述待传输数据为待发送数据,所述待发送数据为所述目标设备2想要发送至其他用户设备的数据,或者所述目标设备2想要发送至网络侧节点的上行数据。所述待传输数据可由所述目标设备2根据用户对所述目标设备2的操作指令确定,也可由所述目标设备2根据自主的通信需求确定。若所述目标设备2检测到存在所述待传输数据,则表明所述目标设备2要向其他用户设备或所述网络侧节点传输数据,但是所述目标设备2传输数据需要数据传输资源,现有技术中,所述目标设备2直接向所述网络侧节点请求所述数据传输资源,但是对于电量受限的目标设备会加快目标设备的电量消耗速度,因此本发明实施例采用与所述目标设备2距离较近的中继设备代替所述目标设备2向所述网络侧节点请求所述数据传输资源。
通常,链路为从一个节点到相邻另外一个节点的线路,而中间没有其他任何的交换节点,线路可以是有线线路,也可以是无线线路,由此可知,本发明
实施例中的D2D链路为D2D通信中两个用户设备之间的无线线路,两个用户设备之间的接口为PC5口,用于两个用户设备之间数据、信息的传输。
缓冲区状态报告用于向网络侧节点提供用户设备在其数据缓冲区中待发送的缓存数据量。所述D2D链路缓冲区状态报告用于所述目标设备2向所述中继设备提供所述目标设备2在其缓冲区中所述待传输数据的缓存数据量。所述目标设备2在检测到存在所述待传输数据时,所述消息发送单元21向所述中继设备发送D2D链路缓冲区状态报告,告知所述中继设备所述待传输数据的数据量。若所述网络侧节点为所述目标设备2与所述中继设备之间的PC5口配置了用于所述目标设备2向所述中继设备发送所述D2D链路缓冲区状态报告的资源,即D2D链路缓冲区状态报告资源,那么所述消息发送单元21通过所述目标设备与所述中继设备之间的PC5口,并使用所述D2D链路缓冲区状态报告资源向所述中继设备发送所述第一目标消息,即所述D2D链路缓冲区状态报告。在本发明实施例中,默认所述网络侧节点已为所述目标设备2与所述中继设备之间的PC5口预先配置了所述D2D链路缓冲区状态报告资源,这样所述目标设备2在检测到存在所述待传输数据时,所述消息发送单元21便可直接向所述中继设备发送所述D2D链路缓冲区状态报告。所述D2D链路缓冲区状态报告用于触发所述中继设备请求所述网络侧节点为所述目标设备2分配数据传输资源,改变了现有技术中所述目标设备2直接向所述网络侧节点请求为其分配所述数据传输资源的方式。
授权信息接收单元22,用于接收所述网络侧节点发送的第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的所述数据传输资源。
具体实现中,所述第一授权信息为数据传输资源授权信息。所述授权信息接收单元22接收所述数据传输资源授权信息,所述数据传输资源授权信息包括所述网络侧节点为所述目标设备2分配的所述数据传输资源。可选的,所述数据传输资源用于所述目标设备2向所述中继设备传输所述待传输数据,在所述授权信息接收单元22接收到所述数据传输资源授权信息时,所述目标设备2通过PC5口,以及所述数据传输资源向所述中继设备发送所述待传输数据。所述中继设备在接收到所述目标设备2发送的所述待传输数据时,可将所述待传输数据存储在所述中继设备的缓冲区中,也可将所述待传输数据转发至所述
网络侧节点。可选的,所述数据传输资源用于所述目标设备2向所述网络侧节点传输所述待传输数据,在所述授权信息接收单元22接收到所述数据传输资源授权信息时,所述目标设备2通过所述目标设备与所述网络侧节点之间的Uu口,以及所述数据传输资源向所述网络侧节点发送所述待传输数据。
所述消息发送单元21,用于向中继设备发送第二目标设备消息,所述第二目标设备消息用于触发中继设备请求网络侧节点为所述目标设备配置D2D链路缓冲区状态报告资源。
具体实现中,所述第二目标设备消息为D2D链路请求消息。当所述目标设备2检测到存在所述待传输数据时,所述消息发送单元21通过所述目标设备2与所述中继设备之间的PC5口向所述中继设备发送D2D链路请求消息,所述D2D链路请求消息用于触发所述中继设备请求所述网络侧节点为所述目标设备2配置D2D链路缓冲区状态报告资源。在本发明实施例中,所述网络侧节点并没有预先为所述目标设备2配置所述D2D链路缓冲区状态报告资源,因此需要所述目标设备2通过所述中继设备为其请求所述D2D链路缓冲区状态报告资源。
所述授权信息接收单元22,还用于接收所述网络侧节点发送的第二授权信息,所述第二授权信息包括所述网络侧节点为所述目标设备配置的所述D2D链路缓冲区状态报告资源。
具体实现中,所述第二授权信息为D2D链路缓冲区状态报告授权信息。所述D2D链路缓冲区状态报告资源授权信息包括所述网络侧节点为所述目标设备配置的D2D链路缓冲区状态报告资源,所述D2D链路缓冲区状态报告资源用于所述目标设备向所述中继设备发送所述D2D链路缓冲区状态报告。
所述消息发送单元21具体用于通过所述授权信息接收单元22接收到的所述D2D链路缓冲区状态报告授权信息中的所述D2D链路缓冲区状态报告资源向所述中继设备发送第一目标设备消息。
在本发明实施例中,通过目标设备检测目标设备的缓冲区中是否存在待传输数据,并在检测到存在待传输数据时,向中继设备发送D2D链路缓冲区状态报告,D2D链路缓冲区状态报告用于触发中继设备请求网络侧节点为目标设备分配数据传输资源,目标设备接收网络侧节点发送的数据传输资源授权信息,数据传输资源授权信息包括网络侧节点为目标设备分配的数据传输资源,
目标设备通过中继设备向网络侧节点请求数据传输资源,从而实现中继设备协助目标设备获得传输资源,并降低目标设备的能耗。
请参见图7,为本发明实施例提供的一种网络侧节点的结构示意图。图7对应的实施例提供的网络侧节点3可以是实施例一至实施例三提供的网络侧节点。所述网络侧节点包括消息接收单元31和授权信息发送单元32。
消息接收单元31,用于接收中继设备发送的第一中继设备消息,所述第一中继设备消息用于触发所述网络侧节点向目标设备发送第一授权信息。
具体实现中,第一中继设备消息为扩展缓冲区状态报告。第一授权信息为数据传输资源授权信息。所述消息接收单元31对接收到的消息进行识别,判断其是否为所述扩展缓冲区状态报告。可选的,所述消息接收单元31检测所述扩展缓冲区状态报告资源上是否存在数据,并在检测到所述扩展缓冲区状态报告资源上存在数据时,确定所述消息接收单元31接收到的消息为所述扩展缓冲区状态报告。其中,数据的大小在此不做限定。可选的,所述消息接收单元31检测逻辑信道标识中是否存在第二预设逻辑信道标识,并在检测到存在所述第二预设逻辑信道标识时,确定所述消息接收单元31接收到的消息为所述扩展缓冲区状态报告。其中,所述第二预设逻辑信道标识为D2D通信标准协议在上行共享信道上为所述扩展缓冲区状态报告设置的标识。可选的,当所述网络侧节点接收到所述预设的逻辑信道标识指示的媒体接入控制包时,确定所述网络侧节点接收到所述扩展缓冲区状态报告。
授权信息发送单元32,用于根据所述第一中继设备消息向所述目标设备发送所述第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的数据传输资源。
具体实现中,当所述消息接收单元31接收到所述扩展缓冲区状态报告时,所述授权信息发送单元32向所述目标设备发送数据传输资源授权信息,所述数据传输资源授权信息包括所述网络侧节点为所述目标设备分配的数据传输资源,所述数据传输资源用于所述目标设备传输所述待传输数据。所述数据传输资源用于所述目标设备传输缓冲区中的待传输数据。
所述消息接收单元31,用于网络侧节点接收中继设备发送的第二中继设备消息,所述第二中继设备消息用于触发所述网络侧节点向目标设备发送第二
授权信息。
具体实现中,第二中继设备消息为扩展请求消息。第二授权信息为D2D链路缓冲区状态报告授权信息。所述消息接收单元31对接收到的消息进行识别,判断其是否为所述中继设备发送的所述扩展请求消息。其中,所述扩展请求消息即为扩展调度请求,用于请求所述网络侧节点为所述目标设备分配所述目标设备向所述中继设备发送D2D链路缓冲区状态报告的资源,即发送所述第一中继设备消息的资源。可选的,所述消息接收单元31检测扩展调度请求资源上是否存在数据,并在检测到所述扩展调度请求资源上存在数据时,确定所述消息接收单元31接收到的消息为所述扩展请求消息。其中,数据的大小在此不做限定。所述扩展调度请求资源用于所述中继设备向所述网络侧节点3发送所述扩展调度请求,在本发明实施例中,所述网络侧节点预先为所述中继设备与所述网络侧节点3之间的Uu口配置了所述扩展调度请求资源,以便所述中继设备向所述网络侧节点3发送所述扩展请求消息。
所述授权信息发送单元32,还用于根据所述扩展请求消息向所述目标设备发送所述第二授权信息,所述第二授权信息包括所述网络侧节点为所述目标设备配置的D2D链路缓冲区状态报告资源。
具体实现中,当所述消息接收单元31接收到所述扩展请求消息时,所述授权信息发送单元32向所述目标设备发送D2D链路缓冲区状态报告资源授权信息,所述D2D链路缓冲区状态报告资源授权信息包括所述网络侧节点为所述目标设备配置的D2D链路缓冲区状态报告资源,所述D2D链路缓冲区状态报告资源用于所述目标设备向所述中继设备发送所述D2D链路缓冲区状态报告。
所述消息接收单元31,还用于接收中继设备发送的第三中继设备消息,所述第三中继设备消息用于请求所述网络侧节点为所述中继设备配置扩展缓冲区状态报告资源。
具体实现中,所述第三中继设备消息为扩展缓冲区状态报告请求消息。
所述授权信息发送单元32,还用于根据所述第三中继设备消息向所述中继设备发送第三授权信息,所述第三授权信息包括所述网络侧节点为所述中继设备配置的所述扩展缓冲区状态报告资源。
具体实现中,所述第三授权信息为扩展缓冲区状态报告资源授权信息。当
所述消息接收单元31接收到所述扩展缓冲区状态报告请求消息时,所述授权信息发送单元32根据所述扩展缓冲区状态报告请求消息向所述中继设备发送扩展缓冲区状态报告资源授权信息,所述扩展缓冲区状态报告资源授权信息包括所述网络侧节点为所述中继设备配置的所述扩展缓冲区状态报告资源。
所述授权信息发送单元32,还用于根据所述第一中继设备消息向所述中继设备发送所述第四授权信息,所述第四授权信息包括所述网络侧节点为所述中继设备分配的数据转发资源,所述数据转发资源用于所述中继设备转发所述待传输数据。
具体实现中,所述第四授权信息为数据转发资源授权信息。所述第一中继设备消息,即所述扩展缓冲区状态报告还用于触发所述网络侧节点向所述中继设备发送数据转发资源授权信息。所述消息接收单元31在接收到所述中继设备发送的所述扩展缓冲区状态报告时,所述授权信息发送单元32向所述中继设备发送所述数据转发资源授权信息,所述数据转发资源授权信息包括所述网络侧节点为所述中继设备分配的数据转发资源,所述数据转发资源用于所述中继设备转发所述待传输数据。
在本发明实施例中,通过网络侧节点接收中继设备发送的扩展缓冲区状态报告,根据扩展缓冲区状态报告向目标设备发送数据传输资源授权信息,数据传输资源授权信息包括网络侧节点为目标设备分配的数据传输资源,从而实现网络侧节点根据中继设备发送的扩展缓冲区状态报告为目标设备分配数据传输资源,使得目标设备在获得传输资源的同时降低目标设备的能耗。
图5所示的中继设备、图6所示的目标设备和图7所示的网络侧节点用于实现本发明实施例一至实施例三所述的内容,图5、图6和图7未揭示的部分可参见实施例一至实施例三的具体描述。
请参见图8,为本发明实施例提供的另一种中继设备的结构示意图,如图8所示,该中继设备包括:至少一个处理器801,例如CPU,至少一个通信总线802,输入设备803、输出设备804,存储器805、电源模块806和无线通信模块807。该中继设备为与目标设备距离较近的用户设备,协助目标设备向网络侧节点请求传输资源。其中,通信总线802用于实现这些组件之间的连接通
信。输入设备803用于接收音频或视频信号,还用于接收用户的输入命令并根据输入命令生成键输入数据以控制中继设备的各种操作。输出设备804被构造为以视觉、音频和/或触觉方式提供输出信号(例如,音频信号、视频信号、警报信号、振动信号等等),输出设备804可以包括显示单元、音频输出模块、警报单元等等,未在图8中标明。电源模块806在处理器801的控制下接收外部电力或内部电力并为通信总线802上的设备、模块、存储器805、处理器801等提供所需的电力。中继设备的电源模块806的电量容量较大。
其中,存储器805可以包括至少一种类型的存储介质,所述存储介质包括闪存、硬盘、多媒体卡、卡型存储器(例如,SD或DX存储器等等)、随机访问存储器(RAM)、静态随机访问存储器(SRAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、可编程只读存储器(PROM)、磁性存储器、磁盘、光盘等等。处理器801通常控制中继设备的总体操作,例如,处理器801执行与语音通话、数据通信、视频通话等等相关的控制和处理。
其中,无线通信模块807用于将无线电信号发送到基站(例如,接入点、节点B等等)、外部终端以及服务器中的至少一个和/或从其接收无线电信号的装置。这样的无线电信号可以包括语音通话信号、视频通话信号、或者根据文本和/或多媒体消息发送和/或接收的各种类型的数据。
无线通信模块807包括消息接收单元、消息发送单元和授权信息接收单元。其中,所述消息接收单元对应于图5所示中继设备中的消息接收单元11,用于接收目标设备发送的第一目标设备消息,在可能实现的方式中,所述消息接收单元还用于接收目标设备发送的第二目标设备消息。第一目标设备消息和第二目标设备消息的作用可参见实施例一至实施例三中对第一目标设备消息和第二目标设备消息的具体描述,在此不再赘述。所述消息发送单元对应于图5所示中继设备中的消息发送单元12,用于向网络侧节点发送第一中继设备消息,在可能实现的方式中,所述消息发送单元还用于向网络侧节点发送第二中继设备消息以及第三中继设备消息,甚至还用于向网络侧节点发送第四中继设备消息和第五中继设备消息。第一中继设备消息、第二中继设备消息、第三中继设备消息、第四中继设备消息和第五中继设备消息的作用可参见实施例一至实施例三中对第一中继设备消息、第二中继设备消息、第三中继设备消息、第
四中继设备消息和第五中继设备消息的具体描述,在此不再赘述。所述授权信息接收单元对应于图5所示中继设备中的授权信息接收单元13,用于接收网络侧节点发送的第三授权信息,第三授权信息包括网络侧节点为中继设备分配的发送扩展缓冲区状态报告的资源,在可能实现的方式中,所述授权信息接收单元还用于接收网络侧节点发送的第四授权信息和第五授权信息,第四授权信息和第五授权信息的作用可参见实施例三中对第四授权信息和第五授权信息的具体描述,在此不再赘述。
无线通信模块807还包括空中接口,未在图8中标明。所述空中接口用于中继设备与其他用户设备或基站通信。所述空中接口包括PC5口和Uu口,PC5口为中继设备与其他设备之间的接口,即中继设备与目标设备之间的接口。Uu口为中继设备与基站之间的接口,即中继设备与网络侧节点之间的接口。
请参见图9,为本发明实施例提供的另一种目标设备的结构示意图,如图9所示,该目标设备包括:至少一个处理器901,例如CPU,至少一个通信总线902,输入设备903、输出设备904,存储器905、电源模块906和无线通信模块907。该目标设备为请求图8所示的中继设备向网络侧节点请求为该目标设备分配传输资源的用户设备,该目标设备与图8所示的中继设备距离较近。其中,通信总线902用于实现这些组件之间的连接通信。输入设备903用于接收音频或视频信号,还用于接收用户的输入命令并根据输入命令生成键输入数据以控制中继设备的各种操作。输出设备904被构造为以视觉、音频和/或触觉方式提供输出信号(例如,音频信号、视频信号、警报信号、振动信号等等),输出设备904可以包括显示单元、音频输出模块、警报单元等等,未在图9中标明。电源模块906在处理器901的控制下接收外部电力或内部电力并为通信总线902上的设备、模块、存储器905、处理器901等提供所需的电力。目标设备的电源模块906的电量容量比中继设备的电源模块806的电量容量小,目标设备为电量受限的用户设备。
其中,存储器905可以包括至少一种类型的存储介质,所述存储介质包括闪存、硬盘、多媒体卡、卡型存储器(例如,SD或DX存储器等等)、随机访问存储器(RAM)、静态随机访问存储器(SRAM)、只读存储器(ROM)、电可擦
除可编程只读存储器(EEPROM)、可编程只读存储器(PROM)、磁性存储器、磁盘、光盘等等。处理器901通常控制中继设备的总体操作,例如,处理器901执行与语音通话、数据通信、视频通话等等相关的控制和处理。
其中,无线通信模块907用于将无线电信号发送到基站(例如,接入点、节点B等等)、外部终端以及服务器中的至少一个和/或从其接收无线电信号的装置。这样的无线电信号可以包括语音通话信号、视频通话信号、或者根据文本和/或多媒体消息发送和/或接收的各种类型的数据。
无线通信模块907包括消息发送单元和授权信息接收单元。其中,所述消息发送单元对应于图6所示目标设备中的消息发送单元21,用于向中继设备发送第一目标设备消息,第一目标设备消息用于触发中继设备请求网络侧节点为目标设备分配数据传输资源,在可能实现的方式中,所述消息发送单元还用于向中继设备发送第二目标设备消息,第二目标设备消息用于触发中继设备向网络侧节点请求网络侧节点为目标设备分配目标设备用于发送第一目标设备消息的资源。所述消息发送单元的具体实现过程可参见图6所示目标设备中对所述消息发送单元21的具体描述,在此不再赘述。所述授权信息接收单元对应于图6所示目标设备中的授权信息接收单元21,用于接收网络侧节点发送的第一授权信息,在可能实现的方式中,所述授权信息接收单元还用于接收网络侧节点发送的第二授权信息,所述授权信息接收单元的具体实现过程可参见图6所示目标设备中对所述授权信息接收单元21的具体描述,在此不再赘述。
无线通信模块907还包括空中接口,未在图9中标明。所述空中接口用于中继设备与其他用户设备或基站通信。所述空中接口包括PC5口和Uu口,PC5口为目标设备与其他设备之间的接口,即目标设备与中继设备之间的接口。Uu口为目标设备与基站之间的接口,即目标设备与网络侧节点之间的接口。
请参见图10,为本发明实施例提供的另一种网络侧节点的结构示意图,如图10所示,该网络侧节点包括:至少一个控制器1001,至少一个通信总线1002,接收机1003和发射机1004。该网络侧节点为图8所示的中继设备和图9所示的目标设备分配通信所需的各种资源。其中,通信总线1002用于实现这些组件之间的连接通信。其中,接收机1003和发射机1004统称为收发台,
收发台在控制器1001的控制下,完成基站的控制与无线信道之间的转换,实现用户设备通信信号的收发与移动平台之间通过空中无线传输及相关的控制功能。控制器1001负责所有的移动通信接口管理,主要是无线信道的分配、释放和管理。
其中,接收机1003包括消息接收单元,未在图10中标明。所述消息接收单元对应于图7所示网络侧节点中的消息接收单元31,用于接收中继设备发送的第一中继设备消息,在可能实现的方式中,所述消息接收单元还用于接收中继设备发送的第二中继设备消息以及第三中继设备,甚至还用于接收中继设备发送的第四中继设备消息和第五中继设备消息。第一中继设备消息、第二中继设备消息、第三中继设备消息、第四中继设备消息和第五中继设备消息的作用可参见实施例一至实施例三中对第一中继设备消息、第二中继设备消息、第三中继设备消息、第四中继设备消息和第五中继设备消息的具体描述,在此不再赘述。
其中,发射机1004包括授权信息发送单元,未在图10中标明。所述授权信息发送单元对应于图7所示网络侧节点中的授权信息发送单元32,用于根据中继设备发送的中继设备消息向目标设备或向中继设备携带资源的授权信息。具体的,所述授权信息发送单元根据第一中继设备消息向目标设备发送携带数据传输资源的第一授权信息;根据第二中继设备消息向目标设备发送携带用于目标设备向中继设备发送第二目标设备的资源的第二授权信息;根据第三中继设备消息向中继设备发送携带用于中继设备发送第一中继设备消息的资源的第三授权信息;还根据第一中继设备消息向中继设备发送携带数据转发资源的第四授权信息等等。
所述网络侧节点还包括空中接口,未在图10中标明。所述空中接口包括目标设备与网络侧节点之间的Uu口以及中继设备与网络侧节点之间的Uu口。
需要说明的是,图8所示的中继设备、图9所示的目标设备以及图10所示的网络侧节点用于实现本发明实施例一至实施例三所述的内容。
本发明实施例还提供一种资源请求***,包括图5或图8所示的中继设备、图6或图9所示的目标设备以及图7或图10所示的网络侧节点。所述中继设
备的消息接收单元用于接收所述目标设备的消息发送单元发送的目标设备消息,包括第一目标设备消息和/或第二目标设备消息。所述网络侧节点的消息接收单元用于接收所述中继设备的消息发送单元发送的中继设备消息,包括第一中继设备消息、第二中继设备消息、第三中继设备消息、第四中继设备消息、第五中继设备消息中的至少一个。所述网络侧节点的授权信息发送单元用于向所述目标设备的授权信息接收单元发送授权信息,包括第一授权信息和/或第二授权信息,所述网络侧节点的授权信息发送单元还用于向所述中继设备的授权信息接收单元发送授权信息,包括第三授权信息和/或第四授权信息,或者包括第三授权信息、第四授权信息、第五授权信息。在该资源请求***中,通过目标设备向中继设备发送第一目标设备消息;中继设备接收到第一目标设备消息时,根据第一目标设备消息向网络侧节点发送第一中继设备消息;网络侧节点接收第一中继设备消息,根据第一中继设备消息向目标设备发送第一授权信息,第一授权信息包括网络侧节点为目标设备分配的数据传输资源,实现中继设备代替目标设备向网络侧节点请求数据传输资源,从而在目标设备获得传输资源的同时降低目标设备的能耗。
需要说明的是,对于前述的各方法实施例,为了简单描述,故将其都表述为一系列的动作组合,但是本领域技术人员应该知悉,本发明并不受所描述的动作顺序的限制,因为根据本发明,某些步骤可以采用其他顺序或者同时进行。其次,本领域技术人员也应该知悉,说明书中所描述的实施例均属于优选实施例,所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。
本发明实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。
本发明实施例装置中的单元可以根据实际需要进行合并、划分和删减。本领域的技术人员可以将本说明书中描述的不同实施例以及不同实施例的特征进行结合或组合。
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到本发
明可以用硬件实现,或固件实现,或它们的组合方式来实现。当使用软件实现时,可以将上述功能存储在计算机可读介质中或作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是计算机能够存取的任何可用介质。以此为例但不限于:计算机可读介质可以包括随机存取存储器(Random Access Memory,RAM)、只读存储器(Read-Only Memory,ROM)、电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory,EEPROM)、只读光盘(Compact Disc Read-Only Memory,CD-ROM)或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质。此外。任何连接可以适当的成为计算机可读介质。例如,如果软件是使用同轴电缆、光纤光缆、双绞线、数字用户线(Digital Subscriber Line,DSL)或者诸如红外线、无线电和微波之类的无线技术从网站、服务器或者其他远程源传输的,那么同轴电缆、光纤光缆、双绞线、DSL或者诸如红外线、无线和微波之类的无线技术包括在所属介质的定影中。如本发明所使用的,盘(Disk)和碟(disc)包括压缩光碟(CD)、激光碟、光碟、数字通用光碟(DVD)、软盘和蓝光光碟,其中盘通常磁性的复制数据,而碟则用激光来光学的复制数据。上面的组合也应当包括在计算机可读介质的保护范围之内。
总之,以上所述仅为本发明技术方案的较佳实施例而已,并非用于限定本发明的保护范围。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (25)
- 一种资源请求方法,其特征在于,包括:中继设备接收目标设备发送的第一目标设备消息,所述第一目标设备消息用于触发所述中继设备请求网络侧节点为所述目标设备分配数据传输资源;所述中继设备根据所述第一目标设备消息向所述网络侧节点发送第一中继设备消息,所述第一中继设备消息用于触发所述网络侧节点向所述目标设备发送第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的所述数据传输资源;其中,所述数据传输资源用于所述目标设备传输待传输数据。
- 根据权利要求1所述的方法,其特征在于,所述中继设备接收目标设备发送的第一目标设备消息之前,还包括:中继设备接收目标设备发送的第二目标设备消息,所述第二目标设备消息用于触发所述中继设备请求网络侧节点为所述目标设备配置D2D链路缓冲区状态报告资源;所述中继设备根据所述第二目标设备消息向所述网络侧节点发送第二中继设备消息,所述第二中继设备消息用于触发所述网络侧节点向所述目标设备发送第二授权信息,所述第二授权信息包括所述网络侧节点为所述目标设备配置的所述D2D链路缓冲区状态报告资源;其中,所述D2D链路缓冲区状态报告资源用于所述目标设备向所述中继设备发送第一目标设备消息。
- 根据权利要求1或2所述的方法,其特征在于,所述中继设备根据所述第一目标设备消息向所述网络侧节点发送第一中继设备消息之前,还包括:所述中继设备向所述网络侧节点发送第三中继设备消息,所述第三中继设备消息请求消息用于请求所述网络侧节点为所述中继设备配置扩展缓冲区状态报告资源;所述中继设备接收所述网络侧节点发送的第三资源授权信息,所述第三资 源授权信息包括所述网络侧节点为所述中继设备配置的所述扩展缓冲区状态报告资源。
- 根据权利要求3所述的方法,其特征在于,所述中继设备根据所述第一目标设备消息向所述网络侧节点发送第一中继设备消息,具体包括:所述中继设备根据所述第一目标设备消息,并通过所述扩展缓冲区状态报告资源向所述网络侧节点发送第一中继设备消息。
- 根据权利要求1-4任一项所述的方法,其特征在于,所述第一中继设备消息还用于触发所述网络侧节点向所述中继设备发送第四授权信息;所述中继设备根据所述第一目标设备消息向所述网络侧节点发送第一中继设备消息之后,还包括:所述中继设备接收所述网络侧节点发送的所述第四授权信息,所述第四授权信息包括所述网络侧节点为所述中继设备分配的数据转发资源,所述数据转发资源用于所述中继设备转发所述待传输数据。
- 一种资源请求方法,其特征在于,包括:目标设备向中继设备发送第一目标设备消息,所述第一目标设备消息用于触发所述中继设备请求网络侧节点为所述目标设备分配数据传输资源;所述目标设备接收所述网络侧节点发送的第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的所述数据传输资源;其中,所述数据传输资源用于所述目标设备传输待传输数据。
- 根据权利要求6所述的方法,其特征在于,所述目标设备向中继设备发送第一目标设备消息之前,还包括:目标设备向中继设备发送第二目标设备消息,所述第二目标设备消息用于触发中继设备请求网络侧节点为所述目标设备配置D2D链路缓冲区状态报告资源;所述目标设备接收所述网络侧节点发送的第二授权信息,所述第二授权信息包括所述网络侧节点为所述目标设备配置的所述D2D链路缓冲区状态报告 资源。
- 根据权利要求6或7所述的方法,其特征在于,所述目标设备向中继设备发送第一目标设备消息,具体包括:所述目标设备通过所述D2D链路缓冲区状态报告资源向所述中继设备发送第一目标设备消息。
- 一种资源请求方法,其特征在于,包括:网络侧节点接收中继设备发送的第一中继设备消息,所述第一中继设备消息用于触发所述网络侧节点向目标设备发送第一授权信息;所述网络侧节点根据所述第一中继设备消息向所述目标设备发送所述第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的数据传输资源;其中,所述数据传输资源用于所述目标设备传输待传输数据。
- 根据权利要求9所述的方法,其特征在于,所述网络侧节点接收中继设备发送的第一中继设备消息之前,还包括:网络侧节点接收中继设备发送的第二中继设备消息,所述第二中继设备消息用于触发所述网络侧节点向目标设备发送第二授权信息;所述网络侧节点根据所述扩展请求消息向所述目标设备发送所述第二授权信息,所述第二授权信息包括所述网络侧节点为所述目标设备配置的D2D链路缓冲区状态报告资源;其中,所述D2D链路缓冲区状态报告资源用于所述目标设备向所述中继设备发送第一目标设备消息。
- 根据权利要求9或10所述的方法,其特征在于,所述网络侧节点接收中继设备发送的第一中继设备消息之前,还包括:网络侧节点接收中继设备发送的第三中继设备消息,所述第三中继设备消息用于请求所述网络侧节点为所述中继设备配置扩展缓冲区状态报告资源;所述网络侧节点根据所述第三中继设备消息向所述中继设备发送第三授 权信息,所述第三授权信息包括所述网络侧节点为所述中继设备配置的所述扩展缓冲区状态报告资源;其中,所述扩展缓冲区状态报告资源用于所述中继设备向所述网络侧节点发送第一中继设备消息。
- 根据权利要求9-11任一项所述的方法,其特征在于,所述第一中继设备消息还用于触发所述网络侧节点向所述中继设备发送第四授权信息;所述方法还包括:所述网络侧节点根据所述第一中继设备消息向所述中继设备发送所述第四授权信息,所述第四授权信息包括所述网络侧节点为所述中继设备分配的数据转发资源,所述数据转发资源用于所述中继设备转发所述待传输数据。
- 一种中继设备,其特征在于,包括:消息接收单元,用于接收目标设备发送的第一目标设备消息,所述第一目标设备消息用于触发所述中继设备请求网络侧节点为所述目标设备分配数据传输资源;消息发送单元,用于根据所述第一目标设备消息向所述网络侧节点发送第一中继设备消息,所述第一中继设备消息用于触发所述网络侧节点向所述目标设备发送第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的所述数据传输资源;其中,所述数据传输资源用于所述目标设备传输待传输数据。
- 根据权利要求13所述的中继设备,其特征在于,所述消息接收单元,还用于接收目标设备发送的第二目标设备消息,所述第二目标设备消息用于触发所述中继设备请求网络侧节点为所述目标设备配置D2D链路缓冲区状态报告资源;所述消息发送单元,还用于根据所述第二目标设备消息向所述网络侧节点发送第二中继设备消息,所述第二中继设备消息用于触发所述网络侧节点向所述目标设备发送第二授权信息,所述第二授权信息包括所述网络侧节点为所述目标设备配置的所述D2D链路缓冲区状态报告资源;其中,所述D2D链路缓冲区状态报告资源用于所述目标设备向所述中继设备发送第一目标设备消息。
- 根据权利要求13或14所述的中继设备,其特征在于,所述消息发送单元,还用于向所述网络侧节点发送第三中继设备消息,所述第三中继设备消息用于请求所述网络侧节点为所述中继设备配置扩展缓冲区状态报告资源;所述中继设备还包括:授权信息接收单元,用于接收所述网络侧节点发送的第三资源授权信息,所述第三资源授权信息包括所述网络侧节点为所述中继设备配置的所述扩展缓冲区状态报告资源。
- 根据权利要求15所述的中继设备,其特征在于,所述消息发送单元具体用于根据所述第一目标设备消息,并通过所述扩展缓冲区状态报告资源向所述网络侧节点发送第一中继设备消息。
- 根据权利要求12-16任一项所述的中继设备,其特征在于,所述第一中继设备消息还用于触发所述网络侧节点向所述中继设备发送第四授权信息;所述授权信息接收单元,还用于接收所述网络侧节点发送的所述第四授权信息,所述第四授权信息包括所述网络侧节点为所述中继设备分配的数据转发资源,所述数据转发资源用于所述中继设备转发所述待传输数据。
- 一种目标设备,其特征在于,包括:消息发送单元,用于向中继设备发送第一目标设备消息,所述第一目标设备消息用于触发所述中继设备请求网络侧节点为所述目标设备分配数据传输资源;授权信息接收单元,用于接收所述网络侧节点发送的第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的所述数据传输资源;其中,所述数据传输资源用于所述目标设备传输待传输数据。
- 根据权利要求18所述的目标设备,其特征在于,所述消息发送单元,还用于向中继设备发送第二目标设备消息,所述第二目标设备消息用于触发中继设备请求网络侧节点为所述目标设备配置D2D链路缓冲区状态报告资源;所述授权信息接收单元,还用于接收所述网络侧节点发送的第二授权信息,所述第二授权信息包括所述网络侧节点为所述目标设备配置的所述D2D链路缓冲区状态报告资源。
- 根据权利要求18或19所述的目标设备,其特征在于,所述消息发送单元具体用于通过所述D2D链路缓冲区状态报告资源向所述中继设备发送第一目标设备消息。
- 一种网络侧节点,其特征在于,包括:消息接收单元,用于接收中继设备发送的第一中继设备消息,所述第一中继设备消息用于触发所述网络侧节点向目标设备发送第一授权信息;授权信息发送单元,用于根据所述第一中继设备消息向所述目标设备发送所述第一授权信息,所述第一授权信息包括所述网络侧节点为所述目标设备分配的数据传输资源;其中,所述数据传输资源用于所述目标设备传输待传输数据。
- 根据权利要求21所述的网络侧节点,其特征在于,所述消息接收单元,还用于网络侧节点接收中继设备发送的第二中继设备消息,所述第二中继设备消息用于触发所述网络侧节点向目标设备发送第二授权信息;所述授权信息发送单元,还用于根据所述扩展请求消息向所述目标设备发送所述第二授权信息,所述第二授权信息包括所述网络侧节点为所述目标设备配置的D2D链路缓冲区状态报告资源;其中,所述D2D链路缓冲区状态报告资源用于所述目标设备向所述中继设备发送第一目标设备消息。
- 根据权利要求21或22所述的网络侧节点,其特征在于,所述消息接收单元,还用于接收中继设备发送的第三中继设备消息,所述第三中继设备消息用于请求所述网络侧节点为所述中继设备配置扩展缓冲区状态报告资源;所述授权信息发送单元,还用于根据所述第三中继设备消息向所述中继设备发送第三授权信息,所述第三授权信息包括所述网络侧节点为所述中继设备配置的所述扩展缓冲区状态报告资源;其中,所述扩展缓冲区状态报告资源用于所述中继设备向所述网络侧节点发送第一中继设备消息。
- 根据权利要求21-23任一项所述的网络侧节点,其特征在于,所述第一中继设备消息还用于触发所述网络侧节点向所述中继设备发送第四授权信息;所述授权信息发送单元,还用于根据所述第一中继设备消息向所述中继设备发送所述第四授权信息,所述第四授权信息包括所述网络侧节点为所述中继设备分配的数据转发资源,所述数据转发资源用于所述中继设备转发所述待传输数据。
- 一种资源请求***,其特征在于,所述***包括如权利要求13-17所述的中继设备,如权利要求18-20所述的目标设备以及如权利要求21-24所述的网络侧节点。
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