WO2017045117A1 - D2d的资源分配方法、设备及系统 - Google Patents

D2d的资源分配方法、设备及系统 Download PDF

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Publication number
WO2017045117A1
WO2017045117A1 PCT/CN2015/089596 CN2015089596W WO2017045117A1 WO 2017045117 A1 WO2017045117 A1 WO 2017045117A1 CN 2015089596 W CN2015089596 W CN 2015089596W WO 2017045117 A1 WO2017045117 A1 WO 2017045117A1
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Prior art keywords
resource
message
base station
sci format
indication information
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PCT/CN2015/089596
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English (en)
French (fr)
Inventor
徐凯
李晓翠
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201580082658.4A priority Critical patent/CN107925855A/zh
Priority to PCT/CN2015/089596 priority patent/WO2017045117A1/zh
Priority to EP15903808.2A priority patent/EP3340661B1/en
Priority to US15/760,134 priority patent/US10548125B2/en
Publication of WO2017045117A1 publication Critical patent/WO2017045117A1/zh

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • 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

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a device to device (Device to Device, D2D) resource allocation method, device and system.
  • D2D Device to Device
  • the D2D communication mode can also be used.
  • the user equipment English: User Equipment, UE for short
  • the UE directly communicates with another UE.
  • D2D communication not only saves wireless spectrum resources, but also reduces the pressure on the core network. Therefore, D2D technology has become an important technology that can be standardized for the fifth generation (English: 5rd Generation, 5G for short) in the 3rd Generation Partnership Project (English: 3rd Generation Partnership Project). .
  • the enhanced D2D (English: Enhanced D2D, abbreviated as: eD2D) is a 3GPP long-term evolution (English: Long Term Evolution, LTE) system version. 13 (English: Release.13, referred to as: Rel.13) is under study a subject.
  • UE-to-network relays (English: UE-to-Network Relays) is one of the important research directions.
  • UE-to-Network Relays is divided into communication (English: communication) and discovery (English: discovery). Scenario, for these two scenarios, the specific communication process, resource allocation, data transmission, etc. need to be designed and studied accordingly.
  • Embodiments of the present invention provide a D2D resource allocation method, device, and system, to address at least a resource allocation problem of a UE outside a network coverage to a UE in a network coverage.
  • the embodiment of the present invention adopts the following technical solutions:
  • a first aspect provides a resource allocation method of a device to a device D2D, where the method includes:
  • the first user equipment UE receives the first message sent by the second UE, where the first message is used to request to allocate resources to the second UE, where the first UE is a UE in a coverage of the base station network, The second UE is a UE outside the coverage of the base station network;
  • the first UE sends a second message to the second UE, where the second message carries the resource indication information, and the second UE uses the first resource according to the resource indication information to the first UE.
  • a UE sends data.
  • the first UE in combination with the first aspect, the resource indication information of the first resource that is allocated to the second UE, includes:
  • the first UE extends the pre-stored bypass control information SCI format 0 to obtain an extended SCI format 0, where the extended SCI format 0 is used to indicate allocation to the second UE.
  • the first resource
  • the first UE expands the pre-stored SCI format 0 according to the first message, including the following manner.
  • the frequency hopping identifier field in the pre-stored SCI format 0 by 1 bit, where the 1 bit is used to indicate whether the frequency hopping identifier in the extended SCI format 0 is related to the advance
  • the frequency hopping identifier of the stored SCI format 0 is the same;
  • the first UE adds N bits to the resource block allocation and frequency hopping resource allocation field in the pre-stored SCI format 0, where the N bits are used to indicate that the first resource is relative to the pre-stored SCI format. 0 indicates the offset of the second resource on the frequency domain resource, and N is a positive integer;
  • the first UE adds an M bit to the time resource mode field in the pre-stored SCI format 0, where the M bit is used to indicate that the first resource is offset from the second resource on the time domain resource.
  • the amount of shift, M is a positive integer;
  • the first UE will use the pre-stored modulation coding mode MCS word in SCI format 0
  • the segment is increased by Z bits, the Z bit is used to indicate an offset of the MCS index of the first resource relative to an MSC index of the second resource, and Z is a positive integer;
  • the time advance indication field in the pre-stored SCI format 0 by 1 bit where the 1 bit is used to indicate whether the second UE adopts the time advance indication of the second UE or adopts the The time advance indication of the first UE.
  • the first resource is compared to the pre-stored SCI format
  • the second resource indicated by 0 has a fixed offset.
  • the first UE in combination with the first aspect, the resource indication information of the first resource that is allocated to the second UE, includes:
  • the first UE receives the second message sent by the base station, and the second message carries resource indication information of the first resource allocated by the base station to the second UE.
  • a second aspect provides a resource allocation method of a device to a device D2D, where the method includes:
  • the second user equipment UE sends a first message to the second UE, where the first message is used to request to allocate resources to the second UE, where the first UE is a UE in a coverage of the base station network, where the Two UEs are UEs outside the coverage of the base station network;
  • the second UE receives the second message sent by the first UE, and the second message carries resource indication information of the first resource allocated to the second UE;
  • the second UE sends data to the first UE by using the first resource according to the resource indication information.
  • the first resource is extended by the first UE to the pre-stored bypass control information SCI format 0 according to the first message. Then assigned to the second UE.
  • the first resource has a fixed offset with respect to the second resource indicated by the pre-stored SCI format 0.
  • the first resource is sent by the first UE to the base station after being sent by the first UE to the base station Said second UE.
  • a third aspect provides a resource allocation method of a device to a device D2D, where the method includes:
  • the base station Receiving, by the base station, the first message sent by the first user equipment UE, where the first message is used to request to allocate resources to the second UE, where the first UE is a UE within the coverage of the base station network, The second UE is a UE outside the coverage of the base station network;
  • the base station allocates a first resource to the second UE according to the first message
  • the base station sends a second message to the first UE, where the second message carries resource indication information of the first resource, and the first UE sends the resource indication information to the second UE.
  • a first user equipment UE includes: a receiving unit, a processing unit, and a sending unit;
  • the receiving unit is configured to receive a first message sent by the second UE, where the first message is used to request to allocate resources to the second UE, where the first UE is a UE in a coverage of the base station network, The second UE is a UE outside the coverage of the base station network;
  • the processing unit is configured to acquire resource indication information of a first resource allocated to the second UE according to the first message;
  • the sending unit is configured to send a second message to the second UE, where the second message carries the resource indication information, and the second UE uses the first resource to the office according to the resource indication information.
  • the first UE transmits data.
  • the processing unit is specifically configured to:
  • the pre-stored bypass control information SCI format 0 is extended to obtain an extended SCI format 0, where the extended SCI format 0 is used to indicate the first resource allocated to the second UE.
  • the processing unit is specifically configured to perform one or any combination of the following manners:
  • N Adding a resource block allocation and a frequency hopping resource allocation field in the pre-stored SCI format 0 by N bits, the N bits being used to indicate the second resource indicated by the first resource relative to the pre-stored SCI format 0
  • the offset of the resource on the frequency domain resource, N is a positive integer
  • a Z bit where the Z bit is used to indicate an offset of an MCS index of the first resource with respect to an MSC index of the second resource, Z is a positive integer;
  • the first resource is compared to the pre-stored SCI format
  • the second resource indicated by 0 has a fixed offset.
  • the processing unit is specifically configured to:
  • a fifth user equipment where the second UE includes: a sending unit and a receiving unit;
  • the sending unit is configured to send a first message to the second UE, where the first message is used to request to allocate resources to the second UE, where the first UE is a UE in a coverage area of the base station network, where The second UE is a UE outside the coverage of the base station network;
  • the receiving unit is configured to receive a second message sent by the first UE, where the second And carrying resource indication information of the first resource allocated to the second UE;
  • the sending unit is further configured to send data to the first UE by using the first resource according to the resource indication information.
  • the first resource is extended by the first UE to the pre-stored bypass control information SCI format 0 according to the first message. Then assigned to the second UE.
  • the first resource has a fixed offset with respect to the second resource indicated by the pre-stored SCI format 0.
  • the first resource is sent by the base station to the base station after the first message is sent to the base station Said second UE.
  • a sixth aspect provides a base station, where the base station includes: a receiving unit, a processing unit, and a sending unit;
  • the receiving unit is configured to receive a first message sent by the first user equipment UE, where the first message is used to request to allocate resources to the second UE, where the first UE is a network coverage of the base station
  • the UE in the second UE is a UE outside the coverage of the base station network;
  • the processing unit is configured to allocate, by using the first message, the first resource to the second UE;
  • the sending unit is configured to send a second message to the first UE, where the second message carries resource indication information of the first resource, and the first UE sends the resource indication information to the Second UE.
  • a first user equipment UE includes: a processor, a first interface circuit, a second interface circuit, a memory, and a bus; the processor, the first interface circuit, and the Said second interface circuit and said memory are connected by said bus and complete communication with each other;
  • the first interface circuit is configured to receive a first message sent by the second UE, where the first message is used to request to allocate resources to the second UE, where the first UE is within a coverage of the base station network a UE, where the second UE is a UE outside the coverage of the base station network;
  • the processor is configured to acquire resource indication information of a first resource allocated to the second UE according to the first message;
  • the second interface circuit is configured to send a second message to the second UE, where the second message carries the resource indication information, and the second UE uses the first resource according to the resource indication information Transmitting data to the first UE.
  • the processor is specifically configured to:
  • the pre-stored bypass control information SCI format 0 is extended to obtain an extended SCI format 0, where the extended SCI format 0 is used to indicate the first resource allocated to the second UE.
  • the processor in combination with the first possible implementation manner of the seventh aspect, is specifically configured to perform one or any combination of the following manners:
  • N Adding a resource block allocation and a frequency hopping resource allocation field in the pre-stored SCI format 0 by N bits, the N bits being used to indicate the second resource indicated by the first resource relative to the pre-stored SCI format 0
  • the offset of the resource on the frequency domain resource, N is a positive integer
  • a Z bit where the Z bit is used to indicate an offset of an MCS index of the first resource with respect to an MSC index of the second resource, Z is a positive integer;
  • the first resource is compared to the foregoing
  • the second resource indicated by the first stored SCI format 0 has a fixed offset.
  • the processor is specifically configured to:
  • a second user equipment UE includes: a first interface circuit, a second interface circuit, a memory, and a bus; the first interface circuit, the second interface circuit, and the The memories are connected through the bus and complete communication with each other;
  • the first interface circuit is configured to send a first message to the second UE, where the first message is used to request to allocate resources to the second UE, where the first UE is a UE in a coverage of the base station network
  • the second UE is a UE outside the coverage of the base station network;
  • the second interface circuit is configured to receive a second message sent by the first UE, where the second message carries resource indication information of a first resource that is allocated to the second UE;
  • the first interface circuit is further configured to send data to the first UE by using the first resource according to the resource indication information.
  • the first resource is extended by the first UE to the pre-stored bypass control information SCI format 0 according to the first message. Assigned to the second UE.
  • the first resource has a fixed offset with respect to the second resource indicated by the pre-stored SCI format 0.
  • the first resource is sent by the first UE to the base station after being sent by the first UE to the base station Said second UE.
  • a base station includes: a processor, a first interface circuit, a second interface circuit, a memory, and a bus; the processor, the first interface circuit, the second interface circuit, and The memories are connected by the bus and complete communication with each other;
  • the first interface circuit is configured to receive a first message sent by the first user equipment UE, where The first message is used to request to allocate resources to the second UE, where the first UE is a UE within the coverage of the base station network, and the second UE is a UE outside the coverage of the base station network;
  • the processor is configured to allocate, by using the first message, the first resource to the second UE;
  • the second interface circuit is configured to send a second message to the first UE, where the second message carries resource indication information of the first resource, and the first UE sends the resource indication information to The second UE.
  • a device-to-device D2D communication system comprising: a base station, the first user equipment UE according to any one of the fourth aspect to the third aspect, the third possible implementation manner And the second UE according to any one of the fifth aspect to the second possible implementation manner of the fifth aspect; or
  • the base station, the first user equipment UE according to any one of the seventh aspect to the seventh aspect, and the second possible implementation manner of the eighth aspect to the eighth aspect A second UE as described.
  • a device-to-device D2D communication system includes: a first user equipment UE, as in the fourth possible implementation manner of the fourth aspect, Implementing the second UE, and the base station as described in the sixth aspect; or
  • the first UE after the first UE receives the first message sent by the second UE to the second UE to allocate resources, according to the The first message acquires the resource indication information of the first resource that is allocated to the second UE, and the first UE sends the second message to the second UE, where the second message carries the resource indication information of the first resource, such that After receiving the second message, the second UE may send data to the first UE by using the first resource according to the resource indication information.
  • the first UE is a UE in a coverage of the base station network
  • the second UE is a UE outside the coverage of the base station network.
  • the embodiment of the present invention provides a resource allocation method for a link of a UE outside the network coverage to a UE in the network coverage, thereby solving the network coverage.
  • the resource allocation problem of the link from the external UE to the UE within the network coverage.
  • FIG. 1 is a schematic diagram of a scenario of a D2D communication system according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram 1 of interaction of a D2D resource allocation method according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram 2 of interaction of a D2D resource allocation method according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram 2 of interaction of a D2D resource allocation method according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart 1 of a D2D resource allocation method according to an embodiment of the present disclosure
  • FIG. 6 is a second schematic flowchart of a D2D resource allocation method according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic flowchart 3 of a D2D resource allocation method according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic flowchart 4 of a D2D resource allocation method according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic flowchart 5 of a D2D resource allocation method according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram 1 of a first UE according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram 1 of a second UE according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram 1 of a base station according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram 2 of a first UE according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram 2 of a second UE according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram 2 of a base station according to an embodiment of the present invention.
  • the words “first”, “second” and the like are used to distinguish the same or similar items whose functions and functions are substantially the same, in the field.
  • the skilled person will understand that the words “first”, “second” and the like do not limit the number and order of execution.
  • the D2D communication system may be a Long Term Evolution (LTE) or an advanced long-term evolution (LTE: LTE-A) system.
  • LTE Long Term Evolution
  • LTE-A advanced long-term evolution
  • the D2D communication system includes a base station, a first UE in the coverage of the base station network (assumed to be UE2), and a second UE outside the coverage of the base station network (assumed to be UE1) UE2 is configured to transmit data of UE1 to the base station.
  • the link between UE2 and the base station is denoted as link2, and the link between UE1 and UE2 is denoted as link1.
  • link2 is the communication between the UE2 and the base station
  • the resource allocation information is scheduled by the base station, which is consistent with the scheduling and resource allocation of the cellular uplink.
  • link1 For the resource allocation problem of link1, there is no corresponding solution at present. If UE1 freely selects resources in the resource pool to transmit relay information according to the communication mode 2 of the out of coverage in system version .12 (English: Release.12, referred to as Rel.12), there may be a problem of resource collision. In turn, the resource needs to be re-selected in the resource pool, which will increase the communication delay, so the resource allocation method is not feasible.
  • an embodiment of the present invention provides a D2D resource allocation method, as described in FIG. 2, including:
  • the UE1 sends a first message to the UE2, where the first message is used to request to allocate resources to the UE1.
  • the UE2 receives the first message sent by the UE1.
  • the UE2 acquires resource indication information of the first resource allocated to the UE1 according to the first message.
  • the UE2 sends a second message to the UE1, where the second message carries the resource indication information.
  • the UE1 receives the second message sent by the UE2.
  • the UE1 sends data to the UE2 by using the first resource according to the resource indication information.
  • the embodiment of the present invention provides a D2D resource allocation method, in which the UE2 (the UE in the network coverage is used to transmit the data of the UE1 to the base station) receives the UE1 (the UE outside the network coverage). After the first message of the resource is allocated to the UE1, the resource information of the first resource allocated to the UE1 is obtained according to the first message, and the UE2 sends a second message to the UE1, where the second message carries the The resource indication information of a resource, so that after receiving the second message, the UE1 may use the first resource to send data to the UE2 according to the resource indication information. That is, the embodiment of the present invention provides a resource allocation method for a link of a UE outside the network coverage to a UE in the network coverage, thereby solving the resource of the UE outside the network coverage to the UE in the network coverage. Assignment issues.
  • the UE2 obtains the resource indication information of the first resource that is allocated to the second UE according to the first message, and the method includes:
  • S203a and UE2 extend the pre-stored bypass control information (SID) format 0 according to the first message to obtain an extended SCI format 0, where the extended SCI format 0 is used. Indicates the first resource allocated to UE1.
  • SID bypass control information
  • the resource indication information is specifically an extended SCI format 0. which is,
  • the UE2 sends a second message to the UE1, where the second message carries the resource indication information (step S204), which may specifically include:
  • the UE2 sends a second message to the UE1, where the second message carries the extended SCI format 0.
  • the UE1 sends the data to the UE2 by using the first resource according to the resource indication information (step S206), which may specifically include:
  • the UE1 sends data to the UE2 by using the first resource according to the extended SCI format 0.
  • the UEs in the coverage of the base station network are allocated to the UEs outside the coverage of the base station network, and the related resources are allocated by using the SCI format 0, that is, the allocation is indicated by the SCI format 0. resource of.
  • SCI format 0 can be used to schedule and allocate resources.
  • the information contained in SCI format 0 includes:
  • Resource block assignment and hopping resource allocation field (English: Resource block assignment and hopping resource allocation) field, this field occupies Among them, Is the configured D2D bandwidth;
  • TRP Time Resource Pattern
  • the 8-bit group destination ID field is defined by the upper layer.
  • the UE2 expands the pre-stored SCI format 0 according to the first message, and obtains an extended SCI format 0 (step S203a), including one or any combination of the following manners:
  • the UE2 adds 1 bit to the frequency hopping identifier field in the pre-stored SCI format 0, where the 1 bit is used to indicate whether the frequency hopping identifier in the extended SCI format 0 and the pre-stored SCI format
  • the frequency hopping identifier of 0 is the same;
  • the UE2 adds, by the Nth bit, the resource block allocation and the frequency hopping resource allocation field in the pre-stored SCI format 0, where the N bit is used to indicate that the first resource is indicated with respect to the pre-stored SCI format 0.
  • the offset of the second resource on the frequency domain resource where N is a positive integer;
  • the UE2 adds the time resource mode field in the pre-stored SCI format 0 to the M bit, where the M bit is used to indicate the offset of the first resource relative to the second resource on the time domain resource, M Is a positive integer;
  • the UE2 adds a Z-bit of the modulation and coding mode MCS field in the pre-stored SCI format 0, where the Z bit is used to indicate an offset of the MCS index of the first resource with respect to the MSC index of the second resource.
  • Z is a positive integer
  • the UE2 adds 1 bit to the time advance indication field in the pre-stored SCI format 0, where the 1 bit is used to indicate whether the second UE adopts the time advance indication of the second UE or adopts the first UE. Time advance indication.
  • any one of the SCI format 0 may be extended, or any multiple fields of the SCI format 0 may be used.
  • the combination of the embodiments is not specifically limited. Wherein, the combination of any of the plurality of fields in the SCI format 0 is extended, specifically, the multiple fields in the plurality of field combinations are respectively expanded.
  • the UE2 adds 1 bit to the frequency hopping identifier field in the pre-stored SCI format 0, where the 1 bit is used to indicate whether the frequency hopping identifier in the extended SCI format 0 and the pre-stored SCI format 0
  • the frequency hopping identifier is the same.
  • the hopping identifier of the extended SCI format 0 is the same as the frequency hopping identifier of the pre-stored SCI format 0, and the 1 bit is set to “1” to indicate that the 1 bit is set to “0”.
  • the frequency hopping identifier in the extended SCI format 0 is different from the frequency hopping identifier in the pre-stored SCI format 0; of course, the 1 bit can also be configured to be "0" to indicate the frequency in the extended SCI format 0.
  • the hopping identifier is different from the hopping identifier in the pre-stored SCI format 0, and configuring the 1 bit to be “1” indicates the frequency hopping identifier in the extended SCI format 0 and the pre-stored SCI format 0.
  • the hopping identifiers are the same, which are not specifically limited in this embodiment of the present invention.
  • the UE2 adds, by the Nth bit, the resource block allocation and the frequency hopping resource allocation field in the pre-stored SCI format 0, where the N bit is used to indicate that the first resource is indicated with respect to the pre-stored SCI format 0.
  • the offset of the two resources on the frequency domain resource where N is a positive integer.
  • N 2 bits are used to indicate the offset of the first resource relative to the second resource on the frequency domain resource
  • the specific offset may be from 0-3 (00). -11), respectively, that the first resource is offset by 0, 1, 2, and 3 resource blocks in the frequency domain with respect to the second resource.
  • the offset is 10
  • the first resource is to send data on the resource block S+2
  • the offset is 11, the first resource is in the resource The data is sent on block S+3.
  • the N bit is the first resource relative to the The backward offset of the second resource indicated by the pre-stored SCI format 0 on the frequency domain resource is taken as an example for description.
  • the N bit may be a forward offset of the second resource indicated by the first resource with respect to the pre-stored SCI format 0 on the frequency domain resource, or may be The backward offset of the second resource on the frequency domain resource indicated by the first resource relative to the pre-stored SCI format 0 is not specifically limited in this embodiment of the present invention.
  • one resource block is included in the second resource as an example.
  • the second resource may include not limited to one resource block, where the offset is an offset of all resource blocks in the first resource with respect to all resource blocks in the second resource, and the present invention The embodiments are not illustrated here by way of example.
  • the UE2 adds the time resource mode field in the pre-stored SCI format 0 to the M bit, where the M bit is used to indicate the offset of the first resource relative to the second resource on the time domain resource, M Is a positive integer.
  • N TRP 8
  • a time resource for the mode index table 3GPP technical standard (TS English:: Technical Specification, referred to) (English: Index) mapping table related to a portion, where, N TRP represents a bit The number of bits of the graph; I TRP represents the time resource mode index; Indicates a subframe indication bitmap (English: Subframe Indicator Bitmap); k TRP indicates that the subframe indicates the number of 1s in the bitmap.
  • M is 2, that is, 2 bits are used to indicate the offset of the first resource relative to the second resource on the time domain resource, and the specific offset may be from 0-3 (00). -11), respectively, that the first resource is offset by 0, 1, 2, and 3 time mode indexes in the time domain with respect to the second resource. For example, if the I TRP corresponding to the second resource is 0 and the offset is 11, the I TRP corresponding to the first resource is 3, and the corresponding Is (0,0,0,1,0,0,0,0).
  • the N bit is used as an example of a backward offset of the second resource indicated by the first resource with respect to the pre-stored SCI format 0 on the time domain resource.
  • the N bit may be a forward offset of the second resource indicated by the first resource relative to the pre-stored SCI format 0 on the time domain resource, or may be The backward offset of the second resource on the time domain resource indicated by the first resource relative to the pre-stored SCI format 0 is not specifically limited in this embodiment of the present invention.
  • the second resource only corresponds to one time mode index as an example.
  • the second resource may not be limited to a time mode index, where the offset is an offset of all time mode indexes corresponding to the first resource with respect to all time mode indexes corresponding to the second resource.
  • the embodiments of the present invention are not illustrated herein.
  • the UE2 adds the ZS field in the pre-stored SCI format 0 by Z bits, where the Z bit is used to indicate an offset of the MCS index of the first resource with respect to the MSC index of the second resource, where Z is A positive integer.
  • Table 2 is a part of the MCS related table in the 3GPP TS 36.213 V12.6.0 standard, in which different MCS indexes correspond to different modulation orders (English: Modulation Order) and transport block size (English: Transport Block Size, referred to as TBS) )index.
  • Z is 4, that is, the offset of the MCS index of the first resource with respect to the MSC index of the second resource is indicated by 4 bits, and the specific offset may be from 0-15 (0000). -1111), respectively, the MCS index representing the first resource is offset from the MCS index of the second resource by 0-15 MCS indexes, respectively. For example, if the MCS index of the second resource is 3 and the offset is 0101, the MCS index of the first resource is 8.
  • the UE2 adds 1 bit to the time advance indication field in the pre-stored SCI format 0, where the 1 bit is used to indicate whether the second UE adopts the time advance indication of the second UE or adopts the first UE. Time advance indication.
  • LTE proposes an uplink timing advance (English: Timing Advance, abbreviated as: TA) mechanism.
  • TA Timing Advance
  • the TA mechanism is essentially a negative offset between the start time of receiving the downlink subframe and the time of transmitting the uplink subframe (English: negative offset).
  • the base station can control the time when the uplink signals from different UEs arrive at the base station by appropriately controlling the offset of each UE. For UEs that are farther away from the base station, Large transmission delays, so it is usually necessary to send uplink data in advance than UEs that are closer to the base station.
  • the D2D communication in order not to generate interference with the cell signal or the Wide Area Network (WAN) signal, the D2D communication adopts the TA, so that the time when different UEs arrive at the base station can be aligned without interference.
  • WAN Wide Area Network
  • the identifier included therein is a group identifier, and both UE1 and UE2 are UEs in the group, and therefore, the group target in the SCI format 0
  • the identification field does not need to be changed.
  • the manner in which the UE2 allocates the first resource to the UE1 by extending the pre-stored SCI format 0 is provided.
  • the UE2 may also allocate the first resource to the UE1 by using other methods.
  • the embodiment of the invention is not specifically limited thereto.
  • the UE2 (the UE in the network coverage, for transmitting the data of the UE1 to the base station), after receiving the first message sent by the UE1 (the UE outside the network coverage) to the UE1 to allocate the resource,
  • the first resource is allocated to the UE1 by extending the pre-stored SCI format 0, and the UE2 sends a second message to the UE1, where the second message carries the extended SCI format 0, and the extended SCI format 0 is used to indicate The first resource allocated to the UE1, so that after receiving the second message, the UE1 may use the first resource to send data to the UE2 according to the extended SCI format 0. That is, the embodiment of the present invention provides a resource allocation method for a link of a UE outside the network coverage to a UE in the network coverage, thereby solving the resource of the UE outside the network coverage to the UE in the network coverage. Assignment issues.
  • the first resource has a fixed offset with respect to the second resource indicated by the pre-stored SCI format 0.
  • the inter-link signal is interfered. Therefore, in the embodiment of the present invention, the first resource allocated by the UE2 to the UE1 is stored in advance.
  • the second resource indicated by the SCI format has a fixed offset, so that the link resources of the UE2 to the UE1 and the link resources of the UE1 to the UE2 are prevented from colliding, thereby avoiding interference of signals between the links.
  • the UE2 acquires the resource indication information of the first resource allocated to the UE1 according to the first message (step S203), which may specifically include:
  • the S203b2 and the UE2 receive the second message sent by the base station, where the second message carries the resource indication information of the first resource allocated by the base station to the UE1.
  • the resource allocation method of the D2D further includes:
  • the base station receives the first message sent by the UE2.
  • the base station allocates a first resource to the UE1 according to the first message.
  • the base station sends a second message to the UE2.
  • the base station may send the second message to the UE2 by using downlink control information (English: Downlink control information, DCI for short).
  • downlink control information English: Downlink control information, DCI for short.
  • the UE2 (the UE in the network coverage, for transmitting the data of the UE1 to the base station), after receiving the first message sent by the UE1 (the UE outside the network coverage) to the UE1 to allocate the resource, Sending the first message to the base station, the base station allocates the first resource to the UE1, and the base station sends the second message to the UE1 through the UE2, where the second message carries the resource indication information of the first resource, so that the UE1 receives the After the second message, the first resource may be used to send data to the UE2 according to the resource indication information. That is, the embodiment of the present invention provides a resource allocation method for a link of a UE outside the network coverage to a UE in the network coverage, thereby solving the resource of the UE outside the network coverage to the UE in the network coverage. Assignment issues.
  • an embodiment of the present invention further provides a D2D resource allocation method, which is described by using UE2 as an execution subject, as shown in FIG. 5, including:
  • the UE2 receives the first message sent by the UE1, where the first message is used to request to allocate resources to the UE1.
  • the UE2 acquires resource indication information of the first resource allocated to the UE1 according to the first message.
  • S503 The UE2 sends a second message to the UE1, where the second message carries the resource indication information, and the UE1 sends the data to the UE2 by using the first resource according to the resource indication information.
  • the embodiment of the present invention provides a D2D resource allocation method, in which the UE2 (the UE in the network coverage is used to transmit the data of the UE1 to the base station) receives the UE1 (the UE outside the network coverage). After the sent request allocates the first message of the resource to UE1, the root Obtaining the resource indication information of the first resource allocated to the UE1 according to the first message, and the UE2 sends the second message to the UE1, where the second message carries the resource indication information of the first resource, so that the UE1 receives the first After the second message, the first resource may be used to send data to the UE2 according to the resource indication information. That is, the embodiment of the present invention provides a resource allocation method for a link of a UE outside the network coverage to a UE in the network coverage, thereby solving the resource of the UE outside the network coverage to the UE in the network coverage. Assignment issues.
  • the UE2 obtains the resource indication information of the first resource allocated to the UE1 according to the first message (step S502), which may specifically include:
  • the UE2 extends the pre-stored SCI format 0 according to the first message to obtain an extended SCI format 0, where the extended SCI format 0 is used to indicate the first resource allocated to the UE1.
  • the resource indication information is specifically an extended SCI format 0. which is,
  • the UE2 sends a second message to the UE1, where the second message carries the resource indication information, and the UE1 sends the data to the UE2 by using the first resource according to the resource indication information (step S503), which may specifically include:
  • the UE2 sends a second message to the UE1, where the second message carries the extended SCI format0, and the UE1 sends the data to the UE2 by using the first resource according to the extended SCI format0.
  • the UE2 expands the pre-stored SCI format 0 according to the first message, and obtains an extended SCI format 0 (step S502a), including one or any combination of the following manners:
  • the UE2 adds 1 bit to the frequency hopping identifier field in the pre-stored SCI format 0, where the 1 bit is used to indicate whether the frequency hopping identifier in the extended SCI format 0 and the pre-stored SCI format
  • the frequency hopping identifier of 0 is the same;
  • the UE2 adds, by the Nth bit, the resource block allocation and the frequency hopping resource allocation field in the pre-stored SCI format 0, where the N bit is used to indicate that the first resource is indicated with respect to the pre-stored SCI format 0.
  • the offset of the second resource on the frequency domain resource where N is a positive integer;
  • the UE2 adds the time resource mode field in the pre-stored SCI format 0 by M bits, where the M bit is used to indicate that the first resource is on the time domain resource with respect to the second resource. Offset, M is a positive integer;
  • the UE2 adds a Z-bit of the modulation and coding mode MCS field in the pre-stored SCI format 0, where the Z bit is used to indicate an offset of the MCS index of the first resource with respect to the MSC index of the second resource.
  • Z is a positive integer
  • the UE2 adds 1 bit to the time advance indication field in the pre-stored SCI format 0, where the 1 bit is used to indicate whether the second UE adopts the time advance indication of the second UE or adopts the first UE. Time advance indication.
  • any one of the SCI format 0 may be extended, or any multiple fields of the SCI format 0 may be used.
  • the combination of the embodiments is not specifically limited. Wherein, the combination of any of the multiple fields in the SCI format 0 is extended, specifically, the multiple fields in the multiple field combinations are respectively extended.
  • the UE2 (the UE in the network coverage, for transmitting the data of the UE1 to the base station), after receiving the first message sent by the UE1 (the UE outside the network coverage) to the UE1 to allocate the resource,
  • the first resource is allocated to the UE1 by extending the pre-stored SCI format 0, and the UE2 sends a second message to the UE1, where the second message carries the extended SCI format 0, and the extended SCI format 0 is used to indicate The first resource allocated to the UE1, so that after receiving the second message, the UE1 may use the first resource to send data to the UE2 according to the extended SCI format 0. That is, the embodiment of the present invention provides a resource allocation method for a link of a UE outside the network coverage to a UE in the network coverage, thereby solving the resource of the UE outside the network coverage to the UE in the network coverage. Assignment issues.
  • the UE2 obtains the resource indication information of the first resource allocated to the UE1 according to the first message (step S502), and specifically includes:
  • the UE2 receives the second message sent by the base station, and the second message carries the resource indication information of the first resource allocated by the base station to the UE1.
  • UE2 (UE within the network coverage, used to count the number of UE1) After transmitting to the base station, after receiving the first message sent by the UE1 (the UE outside the network coverage) to the UE1, the first message is sent to the base station, and the base station allocates the first resource to the UE1, and then the base station passes The UE2 sends a second message to the UE1, where the second message carries the resource indication information of the first resource, so that after receiving the second message, the UE1 may send the first resource to the UE2 according to the resource indication information. data. That is, the embodiment of the present invention provides a resource allocation method for a link of a UE outside the network coverage to a UE in the network coverage, thereby solving the resource of the UE outside the network coverage to the UE in the network coverage. Assignment issues.
  • the first resource has a fixed offset with respect to the second resource indicated by the pre-stored SCI format 0.
  • the inter-link signal is interfered. Therefore, in the embodiment of the present invention, the first resource allocated by the UE2 to the UE1 is stored in advance.
  • the second resource indicated by the SCI format has a fixed offset, so that the link resources of the UE2 to the UE1 and the link resources of the UE1 to the UE2 are prevented from colliding, thereby avoiding interference of signals between the links.
  • the embodiment of the present invention further provides a D2D resource allocation method, which is described by using UE1 as an execution subject, as shown in FIG.
  • the UE1 sends a first message to the UE2, where the first message is used to request to allocate resources to the UE1.
  • the UE1 receives the second message sent by the UE2, where the second message carries the resource indication information of the first resource allocated to the UE1.
  • the UE1 sends data to the UE2 by using the first resource according to the resource indication information.
  • the embodiment of the present invention provides a D2D resource allocation method, in which the UE2 (the UE in the network coverage is used to transmit the data of the UE1 to the base station) receives the UE1 (the UE outside the network coverage). After the first message of the resource is allocated to the UE1, the second message is sent to the UE1, and the second message carries the resource indication information of the first resource allocated to the UE1, so that after receiving the second message, the UE1 may The resource indication information uses the first resource to send data to the UE2.
  • the embodiment of the present invention provides a network A resource allocation method of a link of an out-of-band UE to a UE within a network coverage, thereby solving a resource allocation problem of a link from a UE outside the network coverage to a UE in the network coverage.
  • the first resource is allocated by the UE2 to the UE1 according to the first message, and the pre-stored SCI format 0 is extended.
  • the related description of the SCI format 0 and the UE2 are extended according to the first message, and the SCI format 0 is extended.
  • the specific description of the extended SCI format 0 may be referred to the foregoing method embodiment, where the embodiment of the present invention is No longer.
  • the UE2 (the UE in the network coverage, for transmitting the data of the UE1 to the base station), after receiving the first message sent by the UE1 (the UE outside the network coverage) to the UE1 to allocate the resource,
  • the first resource is allocated to the UE1 by extending the pre-stored SCI format 0, and the UE2 sends a second message to the UE1, where the second message carries the extended SCI format 0, and the extended SCI format 0 is used to indicate The first resource allocated to the UE1, so that after receiving the second message, the UE1 may use the first resource to send data to the UE2 according to the extended SCI format 0. That is, the embodiment of the present invention provides a resource allocation method for a link of a UE outside the network coverage to a UE in the network coverage, thereby solving the resource of the UE outside the network coverage to the UE in the network coverage. Assignment issues.
  • the first resource has a fixed offset with respect to the second resource indicated by the pre-stored SCI format 0.
  • the inter-link signal is interfered. Therefore, in the embodiment of the present invention, the first resource allocated by the UE2 to the UE1 is stored in advance.
  • the second resource indicated by the SCI format has a fixed offset, so that the link resources of the UE2 to the UE1 and the link resources of the UE1 to the UE2 are prevented from colliding, thereby avoiding interference of signals between the links.
  • the first resource is allocated by the UE2 to the UE1 after the first message is sent by the UE2 to the base station.
  • the UE2 (the UE in the network coverage, for transmitting the data of the UE1 to the base station), after receiving the first message sent by the UE1 (the UE outside the network coverage) to the UE1 to allocate the resource, Sending the first message to the base station, the base station allocates the first resource to the UE1, and the base station sends the second message to the UE1 through the UE2, where the second message carries the The resource indication information of a resource, so that after receiving the second message, the UE1 may use the first resource to send data to the UE2 according to the resource indication information. That is, the embodiment of the present invention provides a resource allocation method for a link of a UE outside the network coverage to a UE in the network coverage, thereby solving the resource of the UE outside the network coverage to the UE in the network coverage. Assignment issues.
  • the embodiment of the present invention further provides a D2D resource allocation method, where the base station is used as an execution subject, as shown in FIG. 9 , including:
  • the base station receives the first message sent by the UE2, where the first message is used to request to allocate resources to the UE1.
  • the base station allocates a first resource to the UE1 according to the first message.
  • the base station sends a second message to the UE2, where the second message carries the resource indication information of the first resource, and the UE2 sends the resource indication information to the UE1.
  • the base station may send the second message to the UE2 by using the DCI.
  • the embodiment of the present invention provides a D2D resource allocation method, in which the UE2 (the UE in the network coverage is used to transmit the data of the UE1 to the base station) receives the UE1 (the UE outside the network coverage). After the first message of the resource is allocated to the UE1, the first message is sent to the base station, and the base station allocates the first resource to the UE1, and the base station sends a second message to the UE1 through the UE2, where the second message carries the The resource indication information of the first resource, so that after receiving the second message, the UE1 may use the first resource to send data to the UE2 according to the resource indication information. That is, the embodiment of the present invention provides a resource allocation method for a link of a UE outside the network coverage to a UE in the network coverage, thereby solving the resource of the UE outside the network coverage to the UE in the network coverage. Assignment issues.
  • the embodiment of the present invention provides a first UE 100.
  • the first UE 100 includes: a receiving unit 1001, a processing unit 1002, and a sending unit 1003.
  • the receiving unit 1001 is configured to receive a first message sent by the second UE, where the first message is used to request to allocate resources to the second UE, where the first UE 100 is a UE in a coverage of the base station network.
  • the second UE is a UE outside the coverage of the base station network.
  • the processing unit 1002 is configured to acquire resource indication information of the first resource allocated to the second UE according to the first message.
  • the sending unit 1003 is configured to send a second message to the second UE, where the second message carries the resource indication information, and the second UE uses the first resource according to the resource indication information.
  • the first UE 100 transmits data.
  • processing unit 1002 is specifically configured to:
  • the pre-stored bypass control information SCI format 0 is extended to obtain an extended SCI format 0, where the extended SCI format 0 is used to indicate the first resource allocated to the second UE.
  • processing unit is specifically configured to perform one or any combination of the following manners:
  • N Adding a resource block allocation and a frequency hopping resource allocation field in the pre-stored SCI format 0 by N bits, the N bits being used to indicate the second resource indicated by the first resource relative to the pre-stored SCI format 0
  • the offset of the resource on the frequency domain resource, N is a positive integer
  • a Z bit where the Z bit is used to indicate an offset of an MCS index of the first resource with respect to an MSC index of the second resource, Z is a positive integer;
  • the first resource has a fixed offset with respect to the second resource indicated by the pre-stored SCI format 0.
  • processing unit 1002 is specifically configured to:
  • the sending unit 1003 in this embodiment may be an interface circuit having a transmitting function on the first UE 100, such as a transmitter; the receiving unit 1001 may be an interface circuit, such as a receiver, having a receiving function on the first UE 100.
  • the processing unit 1002 may be a separately set processor, or may be implemented in a processor of the first UE 100. In addition, it may also be stored in the memory of the first UE 100 in the form of program code, by the first UE 100.
  • a processor invokes and executes the functions of the above processing unit 1002.
  • the processor described herein may be a central processing unit (English: Central Processing Unit, CPU for short), or an application specific integrated circuit (ASIC), or configured to implement the present invention.
  • the method for performing the D2D resource allocation by the first UE 100 provided by the embodiment of the present invention may be referred to the foregoing method embodiment, and details are not described herein again.
  • An embodiment of the present invention provides a first UE, where the first UE is a UE in a coverage of a base station network, and is used to transmit data of a second UE to the base station, where the second UE is a network coverage of the base station. Out of range UE.
  • the first UE after receiving the first message sent by the second UE to the second UE to allocate the resource, the first UE acquires the resource of the first resource allocated to the second UE according to the first message.
  • the first UE Instructing the information, and the first UE sends the second message to the second UE, where the second message carries the resource indication information of the first resource, so that after receiving the second message, the second UE may indicate according to the resource
  • the information uses the first resource to transmit data to the first UE. That is to say, the first UE provided by the embodiment of the present invention can implement resource allocation of the UE outside the network coverage to the UE in the network coverage, thereby solving the problem that the UE outside the network coverage reaches the UE in the network coverage. Resource allocation problem for the link.
  • the embodiment of the present invention provides a second UE 110.
  • the second UE 110 includes: a sending unit 1102 and a receiving unit 1101.
  • the sending unit 1102 is configured to send a first message to the second UE 110, where the first message is used to request to allocate resources to the second UE 110, where the first UE is a UE within a coverage of the base station network, The second UE 110 is a UE outside the coverage of the base station network.
  • the receiving unit 1101 is configured to receive a second message sent by the first UE, where the second message carries resource indication information of a first resource allocated to the second UE 110.
  • the sending unit 1102 is further configured to use the first resource according to the resource indication information.
  • the source transmits data to the first UE.
  • the first resource is allocated by the first UE to the second UE according to the first message, and the pre-stored bypass control information SCI format 0 is extended.
  • the related description of the SCI format 0 and the specific description of the pre-stored SCI format 0 by the first UE according to the first message may refer to the foregoing method embodiments, and details are not repeatedly described herein.
  • the first resource has a fixed offset with respect to the second resource indicated by the pre-stored SCI format 0.
  • the first resource is allocated by the first UE to the second UE 110 after the first UE sends the first message to the base station.
  • the sending unit 1102 in this embodiment may be an interface circuit with a transmitting function on the second UE 110, such as a transmitter; the receiving unit 1101 may be an interface circuit, such as a receiver, having a receiving function on the second UE 110.
  • the method for performing the D2D resource allocation by the second UE 110 provided by the embodiment of the present invention may be referred to the foregoing method embodiment, and details are not described herein again.
  • An embodiment of the present invention provides a second UE, where the second UE is a UE outside the coverage of the base station network.
  • the first UE sends a second message to the second UE, where the second message carries the The resource indication information of the first resource of the second UE, so that after receiving the second message, the second UE may send data to the first UE by using the first resource according to the resource indication information.
  • the first UE is a UE in a coverage of a base station network.
  • the second UE provided by the embodiment of the present invention can implement resource allocation of the UE outside the network coverage to the UE in the network coverage, thereby solving the problem that the UE outside the network coverage reaches the UE in the network coverage. Resource allocation problem for the link.
  • the embodiment of the present invention provides a base station 120.
  • the base station 120 includes: a receiving unit 1201, a processing unit 1202, and a sending unit 1203.
  • the receiving unit 1201 is configured to receive a first message sent by the first UE, where the first message is used to request to allocate resources to the second UE, where the first UE is the base station 120 The UE in the network coverage, the second UE is a UE outside the network coverage of the base station 120.
  • the processing unit 1202 is configured to allocate, by using the first message, the first resource to the second UE.
  • the sending unit 1203 is configured to send a second message to the first UE, where the second message carries resource indication information of the first resource, and the first UE sends the resource indication information to the The second UE is described.
  • the sending unit 1203 in this embodiment may be an interface circuit having a transmitting function on the base station 120, such as a transmitter; the receiving unit 1201 may be an interface circuit, such as a receiver, having a receiving function on the base station 120.
  • the processing unit 1202 may be a separately set processor, or may be implemented in one processor of the first UE, or may be stored in the memory of the first UE in the form of program code, by the first UE.
  • a processor invokes and executes the functions of the above processing unit 1202.
  • the processor described herein can be a CPU, or an ASIC, or one or more integrated circuits configured to implement embodiments of the present invention.
  • the method for performing D2D resource allocation by the base station 120 provided by the embodiment of the present invention may be referred to the foregoing method embodiment, and details are not described herein again.
  • An embodiment of the present invention provides a base station, after receiving a first message sent by a first UE to a second UE to allocate a resource, the base station allocates a first resource to the second UE, and the base station sends the second UE by using the first UE.
  • the first UE transmits data.
  • the first UE is a UE in a coverage of the base station network
  • the second UE is a UE outside the coverage of the base station network.
  • the base station provided by the embodiment of the present invention can implement resource allocation of the UE outside the network coverage to the link of the UE in the network coverage, thereby solving the link of the UE outside the network coverage to the UE in the network coverage. Resource allocation issues.
  • the embodiment of the present invention provides a first UE 130.
  • the first UE 130 includes: a processor 1301, a first interface circuit 1302a, a second interface circuit 1302b, a memory 1303, and a bus 1304. 1301.
  • the first interface circuit 1302a, the second interface circuit 1302b, and the memory 1303 are connected by the bus 1304 and complete communication with each other.
  • the processor 1301 herein may be a processor or a general term of multiple processing elements.
  • the processor 1301 may be a CPU, an ASIC, or one or more integrated circuits configured to implement the embodiments of the present invention, for example, one or more microprocessors (English: digital singnal processor, referred to as : DSP), or, one or more Field Programmable Gate Arrays (English: Field Programmable Gate Array, referred to as: FPGA).
  • DSP digital singnal processor
  • FPGA Field Programmable Gate Array
  • the memory 1303 may be a storage device or a collective name of a plurality of storage elements, and is used to store executable program code or parameters, data, and the like required for the operation of the access network management device.
  • the memory 1303 may include a random access memory (English: Random-Access Memory, RAM for short), and may also include a non-volatile memory (NVRAM), such as a disk memory, a flash memory, or the like. .
  • NVRAM non-volatile memory
  • the bus 1304 can be an industry standard architecture (English: Industry Standard Architecture, ISA for short) bus, a peripheral device interconnection (English: Peripheral Component, PCI for short) or an extended industry standard architecture (English: Extended Industry Standard Architecture, Abbreviation: EISA) bus.
  • the bus 1304 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, the bus 1304 is shown with only one thick line in Figure 13, but does not indicate that there is only one bus or one type of bus.
  • the first interface circuit 1302a is configured to receive a first message sent by the second UE, where the first message is used to request to allocate resources to the second UE, where the first UE 130 is within the coverage of the base station network.
  • the UE is the UE outside the coverage of the base station network.
  • the processor 1301 is configured to acquire resource indication information of a first resource allocated to the second UE according to the first message.
  • the second interface circuit 1302b is configured to send a second message to the second UE, where the second message carries the resource indication information, and the second UE uses the first information according to the resource indication information.
  • the resource transmits data to the first UE 130.
  • the processor 1301 is specifically configured to:
  • the pre-stored bypass control information SCI format 0 is extended to obtain an extended SCI format 0, where the extended SCI format 0 is used to indicate the first resource allocated to the second UE.
  • processor 1301 is specifically configured to perform one or any combination of the following manners:
  • N Adding a resource block allocation and a frequency hopping resource allocation field in the pre-stored SCI format 0 by N bits, the N bits being used to indicate the second resource indicated by the first resource relative to the pre-stored SCI format 0
  • the offset of the resource on the frequency domain resource, N is a positive integer
  • a Z bit where the Z bit is used to indicate an offset of an MCS index of the first resource with respect to an MSC index of the second resource, Z is a positive integer;
  • the first resource has a fixed offset with respect to the second resource indicated by the pre-stored SCI format 0.
  • processor 1301 is specifically configured to:
  • the first message is sent to the base station by the second interface circuit 1302b.
  • the method for performing the D2D resource allocation by the first UE 130 provided by the embodiment of the present invention may be referred to the foregoing method embodiment, and details are not described herein again.
  • An embodiment of the present invention provides a first UE, where the first UE is a UE in a coverage of a base station network, and is used to transmit data of a second UE to the base station, where the second UE is a network coverage of the base station. Out of range UE.
  • the first UE after receiving the first message sent by the second UE to the second UE to allocate the resource, the first UE acquires the resource of the first resource allocated to the second UE according to the first message. Instructing information, and the first UE sends the second message Giving the second UE, the second message carrying the resource indication information of the first resource, so that after receiving the second message, the second UE may use the first resource to the first according to the resource indication information
  • the first UE provided by the embodiment of the present invention can implement resource allocation of the UE outside the network coverage to the UE in the network coverage, thereby solving the problem that the UE outside the network coverage reaches the UE in the network coverage. Resource allocation problem for the link.
  • the embodiment of the present invention provides a second UE 140.
  • the second UE 140 includes: a first interface circuit 1401a, a second interface circuit 1401b, a memory 1402, and a bus 1403; the first interface circuit 1401a, The second interface circuit 1401b and the memory 1402 are connected by the bus 1403 and complete communication with each other.
  • the memory 1402 herein may be a storage device, or may be a collective name of a plurality of storage elements, and is used to store executable program code or parameters, data, and the like required for the operation of the access network management device.
  • the memory 1402 may include a RAM, and may also include a non-volatile memory NVRAM, such as a disk memory, a flash memory, or the like.
  • the bus 1403 may be an ISA bus, a PCI bus, or an EISA bus.
  • the bus 1403 can be divided into an address bus, a data bus, a control bus, and the like.
  • the bus 1403 is shown by only one thick line in Fig. 14, but does not mean that there is only one bus or one type of bus.
  • the first interface circuit 1401a is configured to send a first message to the second UE 140, where the first message is used to request to allocate resources to the second UE 140, where the first UE is within the coverage of the base station network
  • the UE, the second UE 140 is a UE outside the coverage of the base station network.
  • the second interface circuit 1401b is configured to receive a second message sent by the first UE, where the second message carries resource indication information of a first resource allocated to the second UE 140.
  • the first interface circuit 1401a is further configured to send data to the first UE by using the first resource according to the resource indication information.
  • the first resource is allocated by the first UE to the second UE according to the first message, and the pre-stored bypass control information SCI format 0 is extended.
  • the related description of the SCI format 0 and the specific description of the pre-stored SCI format 0 by the first UE according to the first message may refer to the foregoing method embodiments, and details are not repeatedly described herein.
  • the first resource has a fixed offset with respect to the second resource indicated by the pre-stored SCI format 0.
  • the first resource is allocated by the first UE to the second UE 140 after the first UE sends the first message to the base station.
  • the method for performing the D2D resource allocation by the second UE 140 provided by the embodiment of the present invention may be referred to the foregoing method embodiment, and details are not described herein again.
  • An embodiment of the present invention provides a second UE, where the second UE is a UE outside the coverage of the base station network.
  • the first UE sends a second message to the second UE, where the second message carries the The resource indication information of the first resource of the second UE, so that after receiving the second message, the second UE may send data to the first UE by using the first resource according to the resource indication information.
  • the first UE is a UE in a coverage of a base station network.
  • the second UE provided by the embodiment of the present invention can implement resource allocation of the UE outside the network coverage to the UE in the network coverage, thereby solving the problem that the UE outside the network coverage reaches the UE in the network coverage. Resource allocation problem for the link.
  • the base station 150 includes a processor 1501, a first interface circuit 1502a, a second interface circuit 1502b, a memory 1503, and a bus 1504.
  • the processor 1501 is provided.
  • the first interface circuit 1502a, the second interface circuit 1502b, and the memory 1503 are connected by the bus 1504 and complete communication with each other.
  • the processor 1501 herein may be a processor or a collective name of multiple processing elements.
  • the processor 1501 can be a CPU, an ASIC, or one or more integrated circuits configured to implement embodiments of the present invention, such as one or more DSPs, or one or more FPGAs.
  • the memory 1503 may be a storage device or a collective name of a plurality of storage elements, and is used to store executable program code or parameters, data, and the like required for the operation of the access network management device. And the memory 1503 may include a RAM, and may also include a non-volatile memory NVRAM, such as a disk memory, a flash memory, or the like.
  • NVRAM non-volatile memory
  • the bus 1504 can be an ISA bus, a PCI bus, or an EISA bus.
  • the bus 1504 Can be divided into address bus, data bus, control bus and so on.
  • bus 150 is shown with only one thick line in Figure 15, but does not indicate that there is only one bus or one type of bus.
  • the first interface circuit 1502a is configured to receive a first message sent by the first UE, where the first message is used to request to allocate resources to the second UE, where the first UE is a network of the base station 150 The UE in the coverage, the second UE is a UE outside the network coverage of the base station 150.
  • the processor 1501 is configured to allocate, by using the first message, the first resource to the second UE.
  • the second interface circuit 1502b is configured to send a second message to the first UE, where the second message carries resource indication information of the first resource, and the first UE sends the resource indication information To the second UE.
  • the method for performing D2D resource allocation by the base station 150 provided by the embodiment of the present invention may be referred to the foregoing method embodiment, and details are not described herein again.
  • An embodiment of the present invention provides a base station, after receiving a first message sent by a first UE to a second UE to allocate a resource, the base station allocates a first resource to the second UE, and the base station sends the second UE by using the first UE.
  • the first UE transmits data.
  • the first UE is a UE in a coverage of the base station network
  • the second UE is a UE outside the coverage of the base station network.
  • the base station provided by the embodiment of the present invention can implement resource allocation of the UE outside the network coverage to the link of the UE in the network coverage, thereby solving the link of the UE outside the network coverage to the UE in the network coverage. Resource allocation issues.
  • an embodiment of the present invention further provides a computer readable instruction (or medium), including computer readable instructions when performing the following operations: performing the method embodiment shown in FIG. 2 to FIG. 9 in the foregoing embodiment. The operation in .
  • a computer program product including the computer readable medium described above.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the above described device is only illustrated by the division of the above functional modules. In practical applications, the above functions may be assigned differently according to needs.
  • the function module is completed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • the device and the unit described above refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), and a random access memory. (RAM, Random Access Memory), various types of media that can store program code, such as a disk or an optical disk.

Abstract

本发明实施例提供D2D的资源分配方法、设备及系统，以至少解决网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。方法包括：第一UE接收第二UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；所述第一UE根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息；所述第一UE发送第二消息给所述第二UE，所述第二消息携带所述资源指示信息，由所述第二UE根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。本发明适用于无线通信领域。

Description

D2D的资源分配方法、设备及系统 技术领域
本发明涉及无线通信领域，尤其涉及设备到设备(Device to Device，简称：D2D)的资源分配方法、设备及系统。
背景技术
随着无线通信系统技术的不断发展，为了实现通信，除了可以使用传统的蜂窝通信模式外，还可以使用D2D通信模式。在蜂窝模式中，用户设备(英文：User Equipment，简称：UE)经由基站与另一个UE通信。而在D2D通信模式中，UE与另一UE直接通信。D2D通信不但节省了无线频谱资源，而且降低了核心网的压力。因此，D2D技术成为目前在第三代合作伙伴计划(英文：3rd Generation Partnership Project，简称：3GPP)标准中正在被标准化的一个可以面向第五代(英文：5rd Generation，简称：5G)的重要技术。
目前，增强的D2D(英文：Enhanced D2D，简称：eD2D)，是3GPP长期演进(英文：Long Term Evolution，简称：LTE)系统版本.13(英文：Release.13，简称：Rel.13)正在研究的一个课题。该课题中，UE到网络的中继(英文：UE-to-Network Relays)是其中一个重要研究方向，UE-to-Network Relays分为通信(英文：communication)和发现(英文：discovery)两个场景，针对这两个场景，其具体的通信流程，资源分配，数据传输等都需要进行相应的设计和研究。
目前，如何解决网络覆盖外(英文：out of coverage)的UE到网络覆盖内(英文：in coverage)的UE的链路的资源分配问题，成为亟待解决的问题。
发明内容
本发明实施例提供D2D的资源分配方法、设备及系统，以至少解决网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
为达到上述目的，本发明实施例采用如下技术方案：
第一方面，提供一种设备到设备D2D的资源分配方法，所述方法包括：
第一用户设备UE接收第二UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
所述第一UE根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息；
所述第一UE发送第二消息给所述第二UE，所述第二消息携带所述资源指示信息，由所述第二UE根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。
在第一方面第一种可能的实现方式中，结合第一方面，所述第一UE根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息，包括：
所述第一UE根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展，获得扩展的SCI格式0，所述扩展的SCI格式0用于指示分配给所述第二UE的第一资源。
在第一方面第二种可能的实现方式中，结合第一方面第一种可能的实现方式，所述第一UE根据所述第一消息，对预先存储的SCI格式0进行扩展，包括以下方式之一或任意组合：
所述第一UE将所述预先存储的SCI格式0中的频率跳频标识字段增加1比特，所述1比特用于指示所述扩展的SCI格式0中的频率跳频标识是否与所述预先存储的SCI格式0中跳频标识相同；
所述第一UE将所述预先存储的SCI格式0中的资源块分配和跳频资源分配字段增加N比特，所述N比特用于指示所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在频域资源上的偏移量，N为正整数；
所述第一UE将所述预先存储的SCI格式0中的时间资源模式字段增加M比特，所述M比特用于指示所述第一资源相对于所述第二资源在时域资源上的偏移量，M为正整数；
所述第一UE将所述预先存储的SCI格式0中的调制编码方式MCS字 段增加Z比特，所述Z比特用于指示所述第一资源的MCS索引相对于所述第二资源的MSC索引的偏移量，Z为正整数；和
所述第一UE将所述预先存储的SCI格式0中的时间提前指示字段增加1比特，所述1比特用于指示所述第二UE采用所述第二UE的时间提前指示还是采用所述第一UE的时间提前指示。
在第一方面第三种可能的实现方式中，结合第一方面第一种可能的实现方式或第一方面第二种可能的实现方式，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
在第一方面第四种可能的实现方式中，结合第一方面，所述第一UE根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息，包括：
所述第一UE发送所述第一消息给所述基站；
所述第一UE接收所述基站发送的第二消息，所述第二消息携带所述基站分配给所述第二UE的第一资源的资源指示信息。
第二方面，提供一种设备到设备D2D的资源分配方法，所述方法包括：
第二用户设备UE发送第一消息给第二UE，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
所述第二UE接收所述第一UE发送的第二消息，所述第二消息携带分配给所述第二UE的第一资源的资源指示信息；
所述第二UE根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。
在第二方面第一种可能的实现方式中，结合第二方面，所述第一资源是由所述第一UE根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展后分配给所述第二UE的。
在第二方面第二种可能的实现方式中，结合第二方面第一种可能的实现方式，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
在第二方面第三种可能的实现方式中，结合第二方面，所述第一资源是由所述第一UE将所述第一消息发送给所述基站后，由所述基站分配给所述第二UE的。
第三方面，提供一种设备到设备D2D的资源分配方法，所述方法包括：
基站接收第一用户设备UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为所述基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
所述基站根据所述第一消息，给所述第二UE分配第一资源；
所述基站发送第二消息给所述第一UE，所述第二消息携带所述第一资源的资源指示信息，由所述第一UE将所述资源指示信息发送给所述第二UE。
第四方面，提供一种第一用户设备UE，所述第一UE包括：接收单元、处理单元和发送单元；
所述接收单元，用于接收第二UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
所述处理单元，用于根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息；
所述发送单元，用于发送第二消息给所述第二UE，所述第二消息携带所述资源指示信息，由所述第二UE根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。
在第四方面第一种可能的实现方式中，结合第四方面，所述处理单元具体用于：
根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展，获得扩展的SCI格式0，所述扩展的SCI格式0用于指示分配给所述第二UE的第一资源。
在第四方面第二种可能的实现方式中，结合第四方面第一种可能的实现方式，所述处理单元具体用于执行以下方式之一或任意组合：
将所述预先存储的SCI格式0中的频率跳频标识字段增加1比特，所述1比特用于指示所述扩展的SCI格式0中的频率跳频标识是否与所述预先存储的SCI格式0中跳频标识相同；
将所述预先存储的SCI格式0中的资源块分配和跳频资源分配字段增加N比特，所述N比特用于指示所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在频域资源上的偏移量，N为正整数；
将所述预先存储的SCI格式0中的时间资源模式字段增加M比特，所述M比特用于指示所述第一资源相对于所述第二资源在时域资源上的偏移量，M为正整数；
将所述预先存储的SCI格式0中的调制编码方式MCS字段增加Z比特，所述Z比特用于指示所述第一资源的MCS索引相对于所述第二资源的MSC索引的偏移量，Z为正整数；和
将所述预先存储的SCI格式0中的时间提前指示字段增加1比特，所述1比特用于指示所述第二UE采用所述第二UE的时间提前指示还是采用所述第一UE的时间提前指示。
在第四方面第三种可能的实现方式中，结合第四方面第一种可能的实现方式或第四方面第二种可能的实现方式，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
在第四方面第四种可能的实现方式中，结合第四方面，所述处理单元具体用于：
发送所述第一消息给所述基站；
接收所述基站发送的第二消息，所述第二消息携带所述基站分配给所述第二UE的第一资源的资源指示信息。
第五方面，提供一种第二用户设备UE，所述第二UE包括：发送单元和接收单元；
所述发送单元，用于发送第一消息给第二UE，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
所述接收单元，用于接收所述第一UE发送的第二消息，所述第二消 息携带分配给所述第二UE的第一资源的资源指示信息；
所述发送单元，还用于根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。
在第五方面第一种可能的实现方式中，结合第五方面，所述第一资源是由所述第一UE根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展后分配给所述第二UE的。
在第五方面第二种可能的实现方式中，结合第五方面第一种可能的实现方式，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
在第五方面第三种可能的实现方式中，结合第五方面，所述第一资源是由所述第一UE将所述第一消息发送给所述基站后，由所述基站分配给所述第二UE的。
第六方面，提供一种基站，所述基站包括：接收单元、处理单元和发送单元；
所述接收单元，用于接收第一用户设备UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为所述基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
所述处理单元，用于根据所述第一消息，给所述第二UE分配第一资源；
所述发送单元，用于发送第二消息给所述第一UE，所述第二消息携带所述第一资源的资源指示信息，由所述第一UE将所述资源指示信息发送给所述第二UE。
第七方面，提供一种第一用户设备UE，所述第一UE包括：处理器、第一接口电路、第二接口电路、存储器和总线；所述处理器、所述第一接口电路、所述第二接口电路和所述存储器通过所述总线连接并完成相互间的通信；
所述第一接口电路，用于接收第二UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
所述处理器，用于根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息；
所述第二接口电路，用于发送第二消息给所述第二UE，所述第二消息携带所述资源指示信息，由所述第二UE根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。
在第七方面第一种可能的实现方式中，结合第七方面，所述处理器具体用于：
根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展，获得扩展的SCI格式0，所述扩展的SCI格式0用于指示分配给所述第二UE的第一资源。
在第七方面第二种可能的实现方式中，结合第七方面第一种可能的实现方式，所述处理器具体用于执行以下方式之一或任意组合：
将所述预先存储的SCI格式0中的频率跳频标识字段增加1比特，所述1比特用于指示所述扩展的SCI格式0中的频率跳频标识是否与所述预先存储的SCI格式0中跳频标识相同；
将所述预先存储的SCI格式0中的资源块分配和跳频资源分配字段增加N比特，所述N比特用于指示所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在频域资源上的偏移量，N为正整数；
将所述预先存储的SCI格式0中的时间资源模式字段增加M比特，所述M比特用于指示所述第一资源相对于所述第二资源在时域资源上的偏移量，M为正整数；
将所述预先存储的SCI格式0中的调制编码方式MCS字段增加Z比特，所述Z比特用于指示所述第一资源的MCS索引相对于所述第二资源的MSC索引的偏移量，Z为正整数；和
将所述预先存储的SCI格式0中的时间提前指示字段增加1比特，所述1比特用于指示所述第二UE采用所述第二UE的时间提前指示还是采用所述第一UE的时间提前指示。
在第七方面第三种可能的实现方式中，结合第七方面第一种可能的实现方式或第七方面第二种可能的实现方式，所述第一资源相对于所述预 先存储的SCI格式0指示的第二资源有固定偏移。
在第七方面第四种可能的实现方式中，结合第七方面，所述处理器具体用于：
通过所述第二接口电路发送所述第一消息给所述基站；
通过所述第一接口电路接收所述基站发送的第二消息，所述第二消息携带所述基站分配给所述第二UE的第一资源的资源指示信息。
第八方面，提供一种第二用户设备UE，所述第二UE包括：第一接口电路、第二接口电路、存储器和总线；所述第一接口电路、所述第二接口电路和所述存储器通过所述总线连接并完成相互间的通信；
所述第一接口电路，用于发送第一消息给第二UE，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
所述第二接口电路，用于接收所述第一UE发送的第二消息，所述第二消息携带分配给所述第二UE的第一资源的资源指示信息；
所述第一接口电路，还用于根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。
在八方面第一种可能的实现方式中，结合第八方面，所述第一资源是由所述第一UE根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展后分配给所述第二UE的。
在第八方面第二种可能的实现方式中，结合第八方面第一种可能的实现方式，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
在第八方面第三种可能的实现方式中，结合第八方面，所述第一资源是由所述第一UE将所述第一消息发送给所述基站后，由所述基站分配给所述第二UE的。
第九方面，提供一种基站，所述基站包括：处理器、第一接口电路、第二接口电路、存储器和总线；所述处理器、所述第一接口电路、所述第二接口电路和所述存储器通过所述总线连接并完成相互间的通信；
所述第一接口电路，用于接收第一用户设备UE发送的第一消息，所 述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为所述基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
所述处理器，用于根据所述第一消息，给所述第二UE分配第一资源；
所述第二接口电路，用于发送第二消息给所述第一UE，所述第二消息携带所述第一资源的资源指示信息，由所述第一UE将所述资源指示信息发送给所述第二UE。
第十方面，提供一种设备到设备D2D通信系统，所述D2D通信系统包括：基站、如第四方面至第四方面第三种可能的实现方式中任一项所述的第一用户设备UE、以及如第五方面至第五方面第二种可能的实现方式中任一项所述的第二UE；或者，
包括：基站、如第七方面至第七方面第三种可能的实现方式中任一项所述的第一用户设备UE、以及如第八方面至第八方面第二种可能的实现方式中任一项所述的第二UE。
第十一方面，提供一种设备到设备D2D通信系统，所述D2D通信系统包括：如第四方面第四种可能的实现方式所述的第一用户设备UE、如第五方面第三种可能的实现方式所述的第二UE、以及如第六方面所述的基站；或者，
包括：如第七方面第四种可能的实现方式所述的第一用户设备UE、如第八方面第三种可能的实现方式所述的第二UE、以及如第九方面所述的基站。
基于本发明实施例提供的D2D的资源分配方法、设备及系统，由于本发明实施例中，第一UE在接收第二UE发送的请求给第二UE分配资源的第一消息之后，根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息，进而第一UE发送第二消息给第二UE，所述第二消息携带所述第一资源的资源指示信息，这样，第二UE接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE。也就是说，本发明实施例提供了一种网络覆盖外的UE到网络覆盖内的UE的链路的资源分配方法，因此解决了网络覆盖 外的UE到网络覆盖内的UE的链路的资源分配问题。
附图说明
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，下面将对实施例或现有技术描述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性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的D2D通信系统的场景示意图；
图2为本发明实施例提供的D2D的资源分配方法的交互示意图一；
图3为本发明实施例提供的D2D的资源分配方法的交互示意图二；
图4为本发明实施例提供的D2D的资源分配方法的交互示意图二；
图5为本发明实施例提供的D2D的资源分配方法的流程示意图一；
图6为本发明实施例提供的D2D的资源分配方法的流程示意图二；
图7为本发明实施例提供的D2D的资源分配方法的流程示意图三；
图8为本发明实施例提供的D2D的资源分配方法的流程示意图四；
图9为本发明实施例提供的D2D的资源分配方法的流程示意图五；
图10为本发明实施例提供的第一UE的结构示意图一；
图11为本发明实施例提供的第二UE的结构示意图一；
图12为本发明实施例提供的基站的结构示意图一；
图13为本发明实施例提供的第一UE的结构示意图二；
图14为本发明实施例提供的第二UE的结构示意图二；
图15为本发明实施例提供的基站的结构示意图二。
具体实施方式
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。在下文描述中，处于解释而非限定的目的，阐述了一些特定细节以便清楚理解。在一些实施例中，省略了公知的装置、电路和方法的详细描述，以免因不必要的细节使得描述模糊。通篇描述中，相同的引用数字和相同的名称指代相同或相似的元素。
为了便于清楚描述本发明实施例的技术方案，在本发明的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分，本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定。
本发明实施例主要应用于D2D通信系统，该D2D通信系统具体可以是长期演进(英文：Long Term Evolution，简称：LTE)，或者高级的长期演进(英文：LTE Advanced，简称：LTE-A)系统，或者未来其它版本的LTE系统，本发明实施例对此不作具体限定。其中，如图1所示，该D2D通信系统包括基站、所述基站网络覆盖范围内的第一UE(假设即为UE2)和所述基站网络覆盖范围外的第二UE(假设即为UE1)，UE2用于将UE1的数据传输给所述基站。UE2与基站之间的链路记为link2，UE1与UE2之间的链路记为link1。由于link2是UE2与基站之间的通信，因此其资源分配信息是由基站进行调度的，与蜂窝上行的调度及资源分配是一致的。而对于link1的资源分配问题，目前并没有相应的解决方案。如果UE1按照系统版本.12(英文：Release.12，简称：Rel.12)中out of coverage的通信模式2在资源池中自由选择资源来发送中继信息，那么就可能会存在资源碰撞的问题，进而需要重新在资源池中选择资源，从而将增加通信时延，因此该资源分配方式并不可行。
基于图1所述的D2D通信系统，本发明实施例提供一种D2D的资源分配方法，如图2所述，包括：
S201、UE1发送第一消息给UE2，所述第一消息用于请求给UE1分配资源。
S202、UE2接收UE1发送的所述第一消息。
S203、UE2根据所述第一消息，获取分配给UE1的第一资源的资源指示信息。
S204、UE2发送第二消息给UE1，所述第二消息携带所述资源指示信息。
S205、UE1接收UE2发送的所述第二消息。
S206、UE1根据所述资源指示信息使用所述第一资源向UE2发送数据。
本发明实施例提供一种D2D的资源分配方法，该D2D的资源分配方法中，UE2(网络覆盖内的UE，用于将UE1的数据传输给基站)在接收到UE1(网络覆盖外的UE)发送的请求给UE1分配资源的第一消息之后，根据所述第一消息获取分配给UE1的第一资源的资源指示信息，进而UE2发送第二消息给UE1，所述第二消息携带所述第一资源的资源指示信息，这样，UE1接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向UE2发送数据。也就是说，本发明实施例提供了一种网络覆盖外的UE到网络覆盖内的UE的链路的资源分配方法，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
进一步的，一种可能的实现方式中，如图3所示，UE2根据所述第一消息，获取分配给所述第二UE的第一资源的资源指示信息(步骤S203)，具体可以包括：
S203a、UE2根据所述第一消息，对预先存储的旁路控制信息(英文：Sidelink control information，简称：SCI)格式0进行扩展，获得扩展的SCI格式0，所述扩展的SCI格式0用于指示分配给UE1的第一资源。
也就是说，此时，所述资源指示信息具体为扩展的SCI格式0。即，
UE2发送第二消息给UE1，所述第二消息携带所述资源指示信息(步骤S204)，具体可以包括：
S204a、UE2发送第二消息给UE1，所述第二消息携带所述扩展的SCI格式0。
UE1根据所述资源指示信息使用所述第一资源向UE2发送数据(步骤S206)，具体可以包括：
S206a、UE1根据所述扩展的SCI格式0使用所述第一资源向UE2发送数据。
具体的，在Rel.12的D2D通信系统中，基站网络覆盖范围内的UE到基站网络覆盖范围外的UE的链路中，用SCI格式0来分配相关的资源，即通过SCI格式0指示分配的资源。比如，在图1所示的D2D通信系统中，UE2到UE1的链路中，就可以用SCI格式0来调度和分配资源。
其中，SCI格式0内包含的信息包括：
1bit的频率跳频标识(英文：Frequency hopping flag)字段；
资源块分配和跳频资源分配(英文：Resource block assignment and hopping resource allocation)字段，该字段占用
Figure PCTCN2015089596-appb-000001
其中，其中，
Figure PCTCN2015089596-appb-000002
是配置的D2D带宽；
7bit的时间资源模式(英文：Time Resource Pattern，简称：TRP)字段；
5bit的调制编码方式(英文：Modulation and coding scheme，简称：MCS)字段；
11bit的时间提前指示(英文：Timing advance indication)字段；
8bit的组目标标识(英文：Group destination ID)字段，由高层定义。
UE2根据所述第一消息，对预先存储的SCI格式0进行扩展，获得扩展的SCI格式0(步骤S203a)，包括以下方式之一或任意组合：
UE2将所述预先存储的SCI格式0中的频率跳频标识字段增加1比特，所述1比特用于指示所述扩展的SCI格式0中的频率跳频标识是否与所述预先存储的SCI格式0中跳频标识相同；
UE2将所述预先存储的SCI格式0中的资源块分配和跳频资源分配字段增加N比特，所述N比特用于指示所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在频域资源上的偏移量，N为正整数；
UE2将所述预先存储的SCI格式0中的时间资源模式字段增加M比特，所述M比特用于指示所述第一资源相对于所述第二资源在时域资源上的偏移量，M为正整数；
UE2将所述预先存储的SCI格式0中的调制编码方式MCS字段增加Z比特，所述Z比特用于指示所述第一资源的MCS索引相对于所述第二资源的MSC索引的偏移量，Z为正整数；和
UE2将所述预先存储的SCI格式0中的时间提前指示字段增加1比特，所述1比特用于指示所述第二UE采用所述第二UE的时间提前指示还是采用所述第一UE的时间提前指示。
需要说明的是，UE2根据所述第一消息，对预先存储的SCI格式0进行扩展时，可以对上述SCI格式0中的任意一个字段进行扩展，也可以对上述SCI格式0中任意多个字段的组合进行扩展，本发明实施例对此不作具体限定。其中，对上述SCI格式0中任意多个字段的组合进行扩展，具体是指，对这多个字段组合中的多个字段分别进行扩展。
下面分别对SCI格式0中各个字段的扩展情况展开说明如下：
1)对于频率跳频标识字段：
UE2将所述预先存储的SCI格式0中的频率跳频标识字段增加1比特，所述1比特用于指示所述扩展的SCI格式0中的频率跳频标识是否与所述预先存储的SCI格式0中跳频标识相同。
其中，可以配置该1比特为“0”表示所述扩展的SCI格式0中的频率跳频标识与所述预先存储的SCI格式0中跳频标识相同，配置该1比特为“1”表示所述扩展的SCI格式0中的频率跳频标识与所述预先存储的SCI格式0中跳频标识不同；当然，也可以配置该1比特为“0”表示所述扩展的SCI格式0中的频率跳频标识与所述预先存储的SCI格式0中跳频标识不同，配置该1比特为“1”表示所述扩展的SCI格式0中的频率跳频标识与所述预先存储的SCI格式0中跳频标识相同，本发明实施例对此不作具体限定。
2)对于资源块分配和跳频资源分配字段：
UE2将所述预先存储的SCI格式0中的资源块分配和跳频资源分配字段增加N比特，所述N比特用于指示所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在频域资源上的偏移量，N为正整数。
示例性的，假设N取2，即用2比特来指示所述第一资源相对于所述第二资源在频域资源上的偏移量，其具体的偏移量可以从0-3(00-11)，分别代表所述第一资源相对于所述第二资源在频域上分别偏移了0，1，2，3个资源块。比如，若第二资源为在资源块S上接收数据，偏移量为10，则第一资源为在资源块S+2上发送数据；若偏移量为11，则第一资源为在资源块S+3上发送数据。
需要说明的是，上述示例以所述N比特为所述第一资源相对于所述 预先存储的SCI格式0指示的第二资源在频域资源上的向后偏移量为例进行说明。当然，本发明实施例中，所述N比特可以是所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在频域资源上的向前偏移量，也可以是所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在频域资源上的向后偏移量，本发明实施例对此不作具体限定。
需要说明的是，上述示例中以所述第二资源中包含一个资源块为例进行说明。当然，所述第二资源中可能包含不限于一个资源块，该偏移量是所述第一资源中的所有资源块相对于所述第二资源中的所有资源块的偏移量，本发明实施例在此不再一一举例说明。
3)对于时间资源模式字段
UE2将所述预先存储的SCI格式0中的时间资源模式字段增加M比特，所述M比特用于指示所述第一资源相对于所述第二资源在时域资源上的偏移量，M为正整数。
表一为3GPP技术标准(英文：Technical Specification，简称：TS)36.213 V12.6.0标准中NTRP＝8时，时间资源模式索引(英文：Index)映射相关表格中的一部分，其中，NTRP表示位图的位数；ITRP表示时间资源模式索引；
Figure PCTCN2015089596-appb-000003
表示子帧指示位图(英文：Subframe Indicator Bitmap)；kTRP表示子帧指示位图中1的个数。
表一
Figure PCTCN2015089596-appb-000004
示例性的，假设M取2，即用2比特来指示所述第一资源相对于所述第二资源在时域资源上的偏移量，其具体的偏移量可以从0-3(00-11)，分别代表所述第一资源相对于所述第二资源在时域上分别偏移了0，1，2，3个时间模式索引。比如，若第二资源对应的ITRP取值为0，偏移量为11，则第一资源对应的ITRP取值为3，其对应的
Figure PCTCN2015089596-appb-000005
为(0，0，0，1，0，0，0，0)。
需要说明的是，上述示例以所述N比特为所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在时域资源上的向后偏移量为例进行说明。当然，本发明实施例中，所述N比特可以是所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在时域资源上的向前偏移量，也可以是所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在时域资源上的向后偏移量，本发明实施例对此不作具体限定。
需要说明的是，上述示例中以所述第二资源仅对应一个时间模式索引为例进行说明。当然，所述第二资源中可能对应不限于一个时间模式索引，该偏移量是所述第一资源对应的所有时间模式索引相对于所述第二资源中对应的所有时间模式索引的偏移量，本发明实施例在此不再一一举例说明。
4)对于MCS字段
UE2将所述预先存储的SCI格式0中的MCS字段增加Z比特，所述Z比特用于指示所述第一资源的MCS索引相对于所述第二资源的MSC索引的偏移量，Z为正整数。
表二为3GPP TS 36.213 V12.6.0标准中MCS相关表格中的一部分，其中，不同的MCS Index对应不同的调制阶数(英文：Modulation Order)和传输块大小(英文：Transport Block Size，简称：TBS)索引。
表二
Figure PCTCN2015089596-appb-000006
示例性的，假设Z取4，即用4比特指示所述第一资源的MCS索引相对于所述第二资源的MSC索引的偏移量，其具体的偏移量可以从0-15(0000-1111)，分别代表所述第一资源的MCS索引相对于所述第二资源的MCS索引分别偏移了0-15个MCS索引。比如，若第二资源的MCS索引为3，偏移量为0101，则第一资源的MCS索引为8。
5)对于时间提前指示字段
UE2将所述预先存储的SCI格式0中的时间提前指示字段增加1比特，所述1比特用于指示所述第二UE采用所述第二UE的时间提前指示还是采用所述第一UE的时间提前指示。
其中，为了保证基站侧的时间同步，LTE提出了上行定时提前(英文：Timing Advance，简称：TA)机制。对于UE来说，TA机制本质上是接收到下行子帧的起始时间与传输上行子帧的时间之间的一个负偏移(英文：negative offset)。基站通过适当地控制每个UE的偏移，可以控制来自不同UE的上行信号到达基站的时间。对于距离基站较远的UE，由于有较 大的传输延迟，因此通常需要比离基站较近的UE提前发送上行数据。
对于D2D通信系统而言，为了不和小区信号或者广域网(英文：Wide Area Network，简称：WAN)信号产生干扰，D2D通信采用TA，从而使得不同的UE到达基站的时间可以对齐，不产生干扰。
6)对于组目标标识字段
具体的，在对SCI格式0进行扩展时，因为目前研究的D2D通信为广播通信，其中包含的标识为组标识，UE1及UE2都为该组内的UE，因此，SCI格式0中的组目标标识字段并不需要变动。
需要说明的是，上述实施例中给出了UE2通过对预先存储的SCI格式0进行扩展的方式给UE1分配第一资源的方式，当然，UE2还可能通过其它方式给UE1分配第一资源，本发明实施例对此不作具体限定。
该D2D的资源分配方法中，UE2(网络覆盖内的UE，用于将UE1的数据传输给基站)在接收到UE1(网络覆盖外的UE)发送的请求给UE1分配资源的第一消息之后，通过对预先存储的SCI格式0进行扩展的方式给UE1分配第一资源，进而UE2发送第二消息给UE1，所述第二消息携带扩展的SCI格式0，所述扩展的SCI格式0用于指示分配给UE1的第一资源，这样，UE1接收到第二消息之后，可以根据所述扩展的SCI格式0使用所述第一资源向UE2发送数据。也就是说，本发明实施例提供了一种网络覆盖外的UE到网络覆盖内的UE的链路的资源分配方法，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
优选的，所述第一资源相对于预先存储的SCI格式0指示的第二资源有固定偏移。
考虑到UE2到UE1的链路资源与UE1到UE2的链路资源若发生冲突，将造成链路间信号的干扰，因此，本发明实施例中，UE2给UE1分配的第一资源相对于预先存储的SCI格式指示的第二资源有固定偏移，这样可以避免UE2到UE1的链路资源与UE1到UE2的链路资源发生冲突，从而避免了链路间信号的干扰。
另一种可能的实现方式中，如图4所示，UE2根据所述第一消息，获取分配给UE1的第一资源的资源指示信息(步骤S203)，具体可以包括：
S203b1、UE2发送所述第一消息给基站。
S203b2、UE2接收基站发送的第二消息，所述第二消息携带所述基站分配给UE1的第一资源的资源指示信息。
相应的，在基站侧，所述D2D的资源分配方法还包括：
S207、基站接收UE2发送的所述第一消息。
S208、基站根据所述第一消息，给UE1分配第一资源。
S209、基站发送第二消息给UE2。
具体的，基站可以通过下行控制信息(英文：Downlink control information，简称：DCI)将第二消息发送给UE2。
该D2D的资源分配方法中，UE2(网络覆盖内的UE，用于将UE1的数据传输给基站)在接收到UE1(网络覆盖外的UE)发送的请求给UE1分配资源的第一消息之后，将该第一消息发送给基站，由基站给UE1分配第一资源，进而基站通过UE2发送第二消息给UE1，所述第二消息携带所述第一资源的资源指示信息，这样，UE1接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向UE2发送数据。也就是说，本发明实施例提供了一种网络覆盖外的UE到网络覆盖内的UE的链路的资源分配方法，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
基于图1所述的D2D通信系统，本发明实施例还提供一种D2D的资源分配方法，以UE2为执行主体进行描述，如图5所述，包括：
S501、UE2接收UE1发送的第一消息，所述第一消息用于请求给UE1分配资源。
S502、UE2根据所述第一消息，获取分配给UE1的第一资源的资源指示信息。
S503、UE2发送第二消息给UE1，所述第二消息携带所述资源指示信息，由UE1根据所述资源指示信息使用所述第一资源向UE2发送数据。
本发明实施例提供一种D2D的资源分配方法，该D2D的资源分配方法中，UE2(网络覆盖内的UE，用于将UE1的数据传输给基站)在接收到UE1(网络覆盖外的UE)发送的请求给UE1分配资源的第一消息之后，根 据所述第一消息获取分配给UE1的第一资源的资源指示信息，进而UE2发送第二消息给UE1，所述第二消息携带所述第一资源的资源指示信息，这样，UE1接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向UE2发送数据。也就是说，本发明实施例提供了一种网络覆盖外的UE到网络覆盖内的UE的链路的资源分配方法，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
进一步的，一种可能的实现方式中，如图6所示，UE2根据所述第一消息，获取分配给UE1的第一资源的资源指示信息(步骤S502)，具体可以包括：
S502a、UE2根据所述第一消息，对预先存储的SCI格式0进行扩展，获得扩展的SCI格式0，所述扩展的SCI格式0用于指示分配给UE1的第一资源。
也就是说，此时，所述资源指示信息具体为扩展的SCI格式0。即，
UE2发送第二消息给UE1，所述第二消息携带所述资源指示信息，由UE1根据所述资源指示信息使用所述第一资源向UE2发送数据(步骤S503)，具体可以包括：
S503a、UE2发送第二消息给UE1，所述第二消息携带所述扩展的SCI格式0，由UE1根据所述扩展的SCI格式0使用所述第一资源向UE2发送数据。
其中，UE2根据所述第一消息，对预先存储的SCI格式0进行扩展，获得扩展的SCI格式0(步骤S502a)，包括以下方式之一或任意组合：
UE2将所述预先存储的SCI格式0中的频率跳频标识字段增加1比特，所述1比特用于指示所述扩展的SCI格式0中的频率跳频标识是否与所述预先存储的SCI格式0中跳频标识相同；
UE2将所述预先存储的SCI格式0中的资源块分配和跳频资源分配字段增加N比特，所述N比特用于指示所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在频域资源上的偏移量，N为正整数；
UE2将所述预先存储的SCI格式0中的时间资源模式字段增加M比特，所述M比特用于指示所述第一资源相对于所述第二资源在时域资源上的 偏移量，M为正整数；
UE2将所述预先存储的SCI格式0中的调制编码方式MCS字段增加Z比特，所述Z比特用于指示所述第一资源的MCS索引相对于所述第二资源的MSC索引的偏移量，Z为正整数；和
UE2将所述预先存储的SCI格式0中的时间提前指示字段增加1比特，所述1比特用于指示所述第二UE采用所述第二UE的时间提前指示还是采用所述第一UE的时间提前指示。
需要说明的是，UE2根据所述第一消息，对预先存储的SCI格式0进行扩展时，可以对上述SCI格式0中的任意一个字段进行扩展，也可以对上述SCI格式0中任意多个字段的组合进行扩展，本发明实施例对此不作具体限定。其中，对上述SCI格式0中任意多个字段的组合进行扩展，具体是指，对这多个字段组合中的多个字段分别进行扩展
具体的，SCI格式0的相关描述以及对SCI格式0中各个字段的扩展情况的展开说明可参考上述方法实施例，本发明实施例在此不再赘述。
该D2D的资源分配方法中，UE2(网络覆盖内的UE，用于将UE1的数据传输给基站)在接收到UE1(网络覆盖外的UE)发送的请求给UE1分配资源的第一消息之后，通过对预先存储的SCI格式0进行扩展的方式给UE1分配第一资源，进而UE2发送第二消息给UE1，所述第二消息携带扩展的SCI格式0，所述扩展的SCI格式0用于指示分配给UE1的第一资源，这样，UE1接收到第二消息之后，可以根据所述扩展的SCI格式0使用所述第一资源向UE2发送数据。也就是说，本发明实施例提供了一种网络覆盖外的UE到网络覆盖内的UE的链路的资源分配方法，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
另一种可能的实现方式中，如图7所示，UE2根据所述第一消息，获取分配给UE1的第一资源的资源指示信息(步骤S502)，具体可以包括：
S502b1、UE2发送所述第一消息给基站。
S502b2、UE2接收基站发送的第二消息，所述第二消息携带所述基站分配给UE1的第一资源的资源指示信息。
该D2D的资源分配方法中，UE2(网络覆盖内的UE，用于将UE1的数 据传输给基站)在接收到UE1(网络覆盖外的UE)发送的请求给UE1分配资源的第一消息之后，将该第一消息发送给基站，由基站给UE1分配第一资源，进而基站通过UE2发送第二消息给UE1，所述第二消息携带所述第一资源的资源指示信息，这样，UE1接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向UE2发送数据。也就是说，本发明实施例提供了一种网络覆盖外的UE到网络覆盖内的UE的链路的资源分配方法，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
优选的，在图5或图6所示的实施例中，所述第一资源相对于预先存储的SCI格式0指示的第二资源有固定偏移。
考虑到UE2到UE1的链路资源与UE1到UE2的链路资源若发生冲突，将造成链路间信号的干扰，因此，本发明实施例中，UE2给UE1分配的第一资源相对于预先存储的SCI格式指示的第二资源有固定偏移，这样可以避免UE2到UE1的链路资源与UE1到UE2的链路资源发生冲突，从而避免了链路间信号的干扰。
基于图1所示的D2D通信系统，本发明实施例还提供一种D2D的资源分配方法，以UE1为执行主体进行描述，如图8所述，包括：
S801、UE1发送第一消息给UE2，所述第一消息用于请求给UE1分配资源。
S802、UE1接收UE2发送的第二消息，所述第二消息携带分配给UE1的第一资源的资源指示信息。
S803、UE1根据所述资源指示信息，使用所述第一资源向UE2发送数据。
本发明实施例提供一种D2D的资源分配方法，该D2D的资源分配方法中，UE2(网络覆盖内的UE，用于将UE1的数据传输给基站)在接收到UE1(网络覆盖外的UE)发送的请求给UE1分配资源的第一消息之后，发送第二消息给UE1，所述第二消息携带分配给UE1的第一资源的资源指示信息，这样，UE1接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向UE2发送数据。也就是说，本发明实施例提供了一种网络 覆盖外的UE到网络覆盖内的UE的链路的资源分配方法，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
一种可能的实现方式中，所述第一资源是由UE2根据所述第一消息，对预先存储的SCI格式0进行扩展后分配给UE1的。
具体的，SCI格式0的相关描述以及UE2根据所述第一消息，对预先存储的SCI格式0进行扩展，获得扩展的SCI格式0的具体描述可参考上述方法实施例，本发明实施例在此不再赘述。
该D2D的资源分配方法中，UE2(网络覆盖内的UE，用于将UE1的数据传输给基站)在接收到UE1(网络覆盖外的UE)发送的请求给UE1分配资源的第一消息之后，通过对预先存储的SCI格式0进行扩展的方式给UE1分配第一资源，进而UE2发送第二消息给UE1，所述第二消息携带扩展的SCI格式0，所述扩展的SCI格式0用于指示分配给UE1的第一资源，这样，UE1接收到第二消息之后，可以根据所述扩展的SCI格式0使用所述第一资源向UE2发送数据。也就是说，本发明实施例提供了一种网络覆盖外的UE到网络覆盖内的UE的链路的资源分配方法，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
优选的，所述第一资源相对于预先存储的SCI格式0指示的第二资源有固定偏移。
考虑到UE2到UE1的链路资源与UE1到UE2的链路资源若发生冲突，将造成链路间信号的干扰，因此，本发明实施例中，UE2给UE1分配的第一资源相对于预先存储的SCI格式指示的第二资源有固定偏移，这样可以避免UE2到UE1的链路资源与UE1到UE2的链路资源发生冲突，从而避免了链路间信号的干扰。
另一种可能的实现方式中，所述第一资源是由UE2将所述第一消息发送给所述基站后，由所述基站分配给UE1的。
该D2D的资源分配方法中，UE2(网络覆盖内的UE，用于将UE1的数据传输给基站)在接收到UE1(网络覆盖外的UE)发送的请求给UE1分配资源的第一消息之后，将该第一消息发送给基站，由基站给UE1分配第一资源，进而基站通过UE2发送第二消息给UE1，所述第二消息携带所述第 一资源的资源指示信息，这样，UE1接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向UE2发送数据。也就是说，本发明实施例提供了一种网络覆盖外的UE到网络覆盖内的UE的链路的资源分配方法，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
基于图1所述的D2D通信系统，本发明实施例还提供一种D2D的资源分配方法，以基站为执行主体进行描述，如图9所示，包括：
S901、基站接收UE2发送的第一消息，所述第一消息用于请求给UE1分配资源。
S902、基站根据所述第一消息，给UE1分配第一资源。
S903、基站发送第二消息给UE2，所述第二消息携带所述第一资源的资源指示信息，由UE2将所述资源指示信息发送给UE1。
具体的，基站可以通过DCI将所述第二消息发送给UE2。
本发明实施例提供一种D2D的资源分配方法，该D2D的资源分配方法中，UE2(网络覆盖内的UE，用于将UE1的数据传输给基站)在接收到UE1(网络覆盖外的UE)发送的请求给UE1分配资源的第一消息之后，将该第一消息发送给基站，由基站给UE1分配第一资源，进而基站通过UE2发送第二消息给UE1，所述第二消息携带所述第一资源的资源指示信息，这样，UE1接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向UE2发送数据。也就是说，本发明实施例提供了一种网络覆盖外的UE到网络覆盖内的UE的链路的资源分配方法，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
本发明实施例提供一种第一UE100，如图10所示，所述第一UE100包括：接收单元1001、处理单元1002和发送单元1003。
所述接收单元1001，用于接收第二UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE100为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE。
所述处理单元1002，用于根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息。
所述发送单元1003，用于发送第二消息给所述第二UE，所述第二消息携带所述资源指示信息，由所述第二UE根据所述资源指示信息使用所述第一资源向所述第一UE100发送数据。
一种可能的实现方式中，所述处理单元1002具体用于：
根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展，获得扩展的SCI格式0，所述扩展的SCI格式0用于指示分配给所述第二UE的第一资源。
进一步的，所述处理单元具体用于执行以下方式之一或任意组合：
将所述预先存储的SCI格式0中的频率跳频标识字段增加1比特，所述1比特用于指示所述扩展的SCI格式0中的频率跳频标识是否与所述预先存储的SCI格式0中跳频标识相同；
将所述预先存储的SCI格式0中的资源块分配和跳频资源分配字段增加N比特，所述N比特用于指示所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在频域资源上的偏移量，N为正整数；
将所述预先存储的SCI格式0中的时间资源模式字段增加M比特，所述M比特用于指示所述第一资源相对于所述第二资源在时域资源上的偏移量，M为正整数；
将所述预先存储的SCI格式0中的调制编码方式MCS字段增加Z比特，所述Z比特用于指示所述第一资源的MCS索引相对于所述第二资源的MSC索引的偏移量，Z为正整数；和
将所述预先存储的SCI格式0中的时间提前指示字段增加1比特，所述1比特用于指示所述第二UE采用所述第二UE的时间提前指示还是采用所述第一UE的时间提前指示。
优选的，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
另一种可能的实现方式中，所述处理单元1002具体用于：
发送所述第一消息给所述基站。
接收所述基站发送的第二消息，所述第二消息携带所述基站分配给所述第二UE的第一资源的资源指示信息。
需要说明的是，本实施例中的发送单元1003可以为第一UE100上具备发射功能的接口电路，如发射机；接收单元1001可以为第一UE100上具备接收功能的接口电路，如接收机。处理单元1002可以为单独设立的处理器，也可以集成在第一UE100的某一个处理器中实现，此外，也可以以程序代码的形式存储于第一UE100的存储器中，由第一UE100的某一个处理器调用并执行以上处理单元1002的功能。这里所述的处理器可以是一个中央处理器(英文：Central Processing Unit，简称：CPU)，或者是特定集成电路(英文：Application Specific Integrated Circuit，简称：ASIC)，或者是被配置成实施本发明实施例的一个或多个集成电路。
具体的，通过本发明实施例提供的第一UE100进行D2D资源分配的方法可参考上述方法实施例，本发明实施例在此不再赘述。
本发明实施例提供一种第一UE，所述第一UE为基站网络覆盖范围内的UE，用于将第二UE的数据传输给所述基站，所述第二UE为所述基站网络覆盖范围外的UE。由于本发明实施例中，第一UE在接收第二UE发送的请求给第二UE分配资源的第一消息之后，根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息，进而第一UE发送第二消息给第二UE，所述第二消息携带所述第一资源的资源指示信息，这样，第二UE接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。也就是说，通过本发明实施例提供的第一UE，可以实现网络覆盖外的UE到网络覆盖内的UE的链路的资源分配，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
本发明实施例提供一种第二UE110，如图11所示，所述第二UE110包括：发送单元1102和接收单元1101。
所述发送单元1102，用于发送第一消息给第二UE110，所述第一消息用于请求给所述第二UE110分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE110为所述基站网络覆盖范围外的UE。
所述接收单元1101，用于接收所述第一UE发送的第二消息，所述第二消息携带分配给所述第二UE110的第一资源的资源指示信息。
所述发送单元1102，还用于根据所述资源指示信息使用所述第一资 源向所述第一UE发送数据。
一种可能的实现方式中，所述第一资源是由所述第一UE根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展后分配给所述第二UE的。
具体的，SCI格式0的相关描述以及第一UE根据所述第一消息，对预先存储的SCI格式0进行扩展的具体描述可参考上述方法实施例，本发明实施例在此不再赘述。
优选的，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
另一种可能的实现方式中，所述第一资源是由所述第一UE将所述第一消息发送给所述基站后，由所述基站分配给所述第二UE110的。
需要说明的是，本实施例中的发送单元1102可以为第二UE110上具备发射功能的接口电路，如发射机；接收单元1101可以为第二UE110上具备接收功能的接口电路，如接收机。
具体的，通过本发明实施例提供的第二UE110进行D2D资源分配的方法可参考上述方法实施例，本发明实施例在此不再赘述。
本发明实施例提供一种第二UE，所述第二UE为基站网络覆盖范围外的UE。由于本发明实施例中，第二UE向第一UE发送请求给第二UE分配资源的第一消息之后，第一UE发送第二消息给第二UE，所述第二消息携带分配给所述第二UE的第一资源的资源指示信息，这样，第二UE接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。其中，所述第一UE为基站网络覆盖范围内的UE。也就是说，通过本发明实施例提供的第二UE，可以实现网络覆盖外的UE到网络覆盖内的UE的链路的资源分配，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
本发明实施例提供一种基站120，如图12所示，所述基站120包括：接收单元1201、处理单元1202和发送单元1203。
所述接收单元1201，用于接收第一UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为所述基站120 网络覆盖范围内的UE，所述第二UE为所述基站120网络覆盖范围外的UE。
所述处理单元1202，用于根据所述第一消息，给所述第二UE分配第一资源。
所述发送单元1203，用于发送第二消息给所述第一UE，所述第二消息携带所述第一资源的资源指示信息，由所述第一UE将所述资源指示信息发送给所述第二UE。
需要说明的是，本实施例中的发送单元1203可以为基站120上具备发射功能的接口电路，如发射机；接收单元1201可以为基站120上具备接收功能的接口电路，如接收机。处理单元1202可以为单独设立的处理器，也可以集成在第一UE的某一个处理器中实现，此外，也可以以程序代码的形式存储于第一UE的存储器中，由第一UE的某一个处理器调用并执行以上处理单元1202的功能。这里所述的处理器可以是一个CPU，或者是ASIC，或者是被配置成实施本发明实施例的一个或多个集成电路。
具体的，通过本发明实施例提供的基站120进行D2D资源分配的方法可参考上述方法实施例，本发明实施例在此不再赘述。
本发明实施例提供一种基站，所述基站在接收第一UE发送的请求给第二UE分配资源的第一消息之后，给第二UE分配第一资源，并且基站通过第一UE发送第二消息给第二UE，所述第二消息携带所述第一资源的资源指示信息，这样，第二UE接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE。也就是说，通过本发明实施例提供的基站，可以实现网络覆盖外的UE到网络覆盖内的UE的链路的资源分配，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
本发明实施例提供一种第一UE130，如图13所示，所述第一UE130包括：处理器1301、第一接口电路1302a、第二接口电路1302b、存储器1303和总线1304；所述处理器1301、所述第一接口电路1302a、所述第二接口电路1302b和所述存储器1303通过所述总线1304连接并完成相互间的通信。
需要说明的是，这里的处理器1301可以是一个处理器，也可以是多个处理元件的统称。例如，该处理器1301可以是CPU，也可以是ASIC，或者是被配置成实施本发明实施例的一个或多个集成电路，例如：一个或多个微处理器(英文：digital singnal processor，简称：DSP)，或，一个或者多个现场可编程门阵列(英文：Field Programmable Gate Array，简称：FPGA)。
存储器1303可以是一个存储装置，也可以是多个存储元件的统称，且用于存储可执行程序代码或接入网管理设备运行所需要参数、数据等。且存储器1303可以包括随机存储器(英文：Random-Access Memory，简称：RAM)，也可以包括非易失性存储器(英文：non-volatile memory，简称：NVRAM)，例如磁盘存储器，闪存(Flash)等。
总线1304可以是工业标准体系结构(英文：Industry Standard Architecture，简称：ISA)总线、外部设备互连(英文：Peripheral Component，简称：PCI)总线或扩展工业标准体系结构(英文：Extended Industry Standard Architecture，简称：EISA)总线等。该总线1304可以分为地址总线、数据总线、控制总线等。为便于表示，图13中仅用一条粗线表示总线1304，但并不表示仅有一根总线或一种类型的总线。
所述第一接口电路1302a，用于接收第二UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE130为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE。
所述处理器1301，用于根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息.
所述第二接口电路1302b，用于发送第二消息给所述第二UE，所述第二消息携带所述资源指示信息，由所述第二UE根据所述资源指示信息使用所述第一资源向所述第一UE130发送数据。
一种可能的实现方式中，所述处理器1301具体用于：
根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展，获得扩展的SCI格式0，所述扩展的SCI格式0用于指示分配给所述第二UE的第一资源。
进一步的，所述处理器1301具体用于执行以下方式之一或任意组合：
将所述预先存储的SCI格式0中的频率跳频标识字段增加1比特，所述1比特用于指示所述扩展的SCI格式0中的频率跳频标识是否与所述预先存储的SCI格式0中跳频标识相同；
将所述预先存储的SCI格式0中的资源块分配和跳频资源分配字段增加N比特，所述N比特用于指示所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在频域资源上的偏移量，N为正整数；
将所述预先存储的SCI格式0中的时间资源模式字段增加M比特，所述M比特用于指示所述第一资源相对于所述第二资源在时域资源上的偏移量，M为正整数；
将所述预先存储的SCI格式0中的调制编码方式MCS字段增加Z比特，所述Z比特用于指示所述第一资源的MCS索引相对于所述第二资源的MSC索引的偏移量，Z为正整数；和
将所述预先存储的SCI格式0中的时间提前指示字段增加1比特，所述1比特用于指示所述第二UE采用所述第二UE的时间提前指示还是采用所述第一UE的时间提前指示。
优选的，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
另一种可能的实现方式中，所述处理器1301具体用于：
通过所述第二接口电路1302b发送所述第一消息给所述基站。
通过所述第一接口电路1302a接收所述基站发送的第二消息，所述第二消息携带所述基站分配给所述第二UE的第一资源的资源指示信息。
具体的，通过本发明实施例提供的第一UE130进行D2D资源分配的方法可参考上述方法实施例，本发明实施例在此不再赘述。
本发明实施例提供一种第一UE，所述第一UE为基站网络覆盖范围内的UE，用于将第二UE的数据传输给所述基站，所述第二UE为所述基站网络覆盖范围外的UE。由于本发明实施例中，第一UE在接收第二UE发送的请求给第二UE分配资源的第一消息之后，根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息，进而第一UE发送第二消息 给第二UE，所述第二消息携带所述第一资源的资源指示信息，这样，第二UE接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。也就是说，通过本发明实施例提供的第一UE，可以实现网络覆盖外的UE到网络覆盖内的UE的链路的资源分配，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
本发明实施例提供一种第二UE140，如图14所示，所述第二UE140包括：第一接口电路1401a、第二接口电路1401b、存储器1402和总线1403；所述第一接口电路1401a、所述第二接口电路1401b和所述存储器1402通过所述总线1403连接并完成相互间的通信。
需要说明的是，这里的存储器1402可以是一个存储装置，也可以是多个存储元件的统称，且用于存储可执行程序代码或接入网管理设备运行所需要参数、数据等。且存储器1402可以包括RAM，也可以包括非易失性存储器NVRAM，例如磁盘存储器，闪存(Flash)等。
总线1403可以是ISA总线、PCI总线或EISA总线等。该总线1403可以分为地址总线、数据总线、控制总线等。为便于表示，图14中仅用一条粗线表示总线1403，但并不表示仅有一根总线或一种类型的总线。
所述第一接口电路1401a，用于发送第一消息给第二UE140，所述第一消息用于请求给所述第二UE140分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE140为所述基站网络覆盖范围外的UE。
所述第二接口电路1401b，用于接收所述第一UE发送的第二消息，所述第二消息携带分配给所述第二UE140的第一资源的资源指示信息.
所述第一接口电路1401a，还用于根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。
一种可能的实现方式中，所述第一资源是由所述第一UE根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展后分配给所述第二UE的。
具体的，SCI格式0的相关描述以及第一UE根据所述第一消息，对预先存储的SCI格式0进行扩展的具体描述可参考上述方法实施例，本发明实施例在此不再赘述。
优选的，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
另一种可能的实现方式中，所述第一资源是由所述第一UE将所述第一消息发送给所述基站后，由所述基站分配给所述第二UE140的。
具体的，通过本发明实施例提供的第二UE140进行D2D资源分配的方法可参考上述方法实施例，本发明实施例在此不再赘述。
本发明实施例提供一种第二UE，所述第二UE为基站网络覆盖范围外的UE。由于本发明实施例中，第二UE向第一UE发送请求给第二UE分配资源的第一消息之后，第一UE发送第二消息给第二UE，所述第二消息携带分配给所述第二UE的第一资源的资源指示信息，这样，第二UE接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。其中，所述第一UE为基站网络覆盖范围内的UE。也就是说，通过本发明实施例提供的第二UE，可以实现网络覆盖外的UE到网络覆盖内的UE的链路的资源分配，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
本发明实施例提供一种基站150，如图15所示，所述基站150包括：处理器1501、第一接口电路1502a、第二接口电路1502b、存储器1503和总线1504；所述处理器1501、所述第一接口电路1502a、所述第二接口电路1502b和所述存储器1503通过所述总线1504连接并完成相互间的通信。
需要说明的是，这里的处理器1501可以是一个处理器，也可以是多个处理元件的统称。例如，该处理器1501可以是CPU，也可以是ASIC，或者是被配置成实施本发明实施例的一个或多个集成电路，例如：一个或多个DSP，或，一个或者多个FPGA。
存储器1503可以是一个存储装置，也可以是多个存储元件的统称，且用于存储可执行程序代码或接入网管理设备运行所需要参数、数据等。且存储器1503可以包括RAM，也可以包括非易失性存储器NVRAM，例如磁盘存储器，闪存(Flash)等。
总线1504可以是ISA总线、PCI总线或EISA总线等。该总线1504 可以分为地址总线、数据总线、控制总线等。为便于表示，图15中仅用一条粗线表示总线1504，但并不表示仅有一根总线或一种类型的总线。
所述第一接口电路1502a，用于接收第一UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为所述基站150网络覆盖范围内的UE，所述第二UE为所述基站150网络覆盖范围外的UE。
所述处理器1501，用于根据所述第一消息，给所述第二UE分配第一资源。
所述第二接口电路1502b，用于发送第二消息给所述第一UE，所述第二消息携带所述第一资源的资源指示信息，由所述第一UE将所述资源指示信息发送给所述第二UE。
具体的，通过本发明实施例提供的基站150进行D2D资源分配的方法可参考上述方法实施例，本发明实施例在此不再赘述。
本发明实施例提供一种基站，所述基站在接收第一UE发送的请求给第二UE分配资源的第一消息之后，给第二UE分配第一资源，并且基站通过第一UE发送第二消息给第二UE，所述第二消息携带所述第一资源的资源指示信息，这样，第二UE接收到第二消息之后，可以根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE。也就是说，通过本发明实施例提供的基站，可以实现网络覆盖外的UE到网络覆盖内的UE的链路的资源分配，因此解决了网络覆盖外的UE到网络覆盖内的UE的链路的资源分配问题。
此外，本发明实施例还提供一种计算可读媒体(或介质)，包括在被执行时进行以下操作的计算机可读指令：执行上述实施例中如图2-图9所示的方法实施例中的操作。
另外，还提供一种计算机程序产品，包括上述计算机可读介质。
应理解，在本发明的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的装置，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器 (RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (32)

  1. 一种设备到设备D2D的资源分配方法，其特征在于，所述方法包括：
    第一用户设备UE接收第二UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
    所述第一UE根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息；
    所述第一UE发送第二消息给所述第二UE，所述第二消息携带所述资源指示信息，由所述第二UE根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。
  2. 根据权利要求1所述的方法，其特征在于，所述第一UE根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息，包括：
    所述第一UE根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展，获得扩展的SCI格式0，所述扩展的SCI格式0用于指示分配给所述第二UE的第一资源。
  3. 根据权利要求2所述的方法，其特征在于，所述第一UE根据所述第一消息，对预先存储的SCI格式0进行扩展，包括以下方式之一或任意组合：
    所述第一UE将所述预先存储的SCI格式0中的频率跳频标识字段增加1比特，所述1比特用于指示所述扩展的SCI格式0中的频率跳频标识是否与所述预先存储的SCI格式0中跳频标识相同；
    所述第一UE将所述预先存储的SCI格式0中的资源块分配和跳频资源分配字段增加N比特，所述N比特用于指示所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在频域资源上的偏移量，N为正整数；
    所述第一UE将所述预先存储的SCI格式0中的时间资源模式字段增加M比特，所述M比特用于指示所述第一资源相对于所述第二资源在时域资源上的偏移量，M为正整数；
    所述第一UE将所述预先存储的SCI格式0中的调制编码方式MCS字段增加Z比特，所述Z比特用于指示所述第一资源的MCS索引相对于所述第二资源的MSC索引的偏移量，Z为正整数；和
    所述第一UE将所述预先存储的SCI格式0中的时间提前指示字段增加1比特，所述1比特用于指示所述第二UE采用所述第二UE的时间提前指示还是采用所述第一UE的时间提前指示。
  4. 根据权利要求2或3所述的方法，其特征在于，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
  5. 根据权利要求1所述的方法，其特征在于，所述第一UE根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息，包括：
    所述第一UE发送所述第一消息给所述基站；
    所述第一UE接收所述基站发送的第二消息，所述第二消息携带所述基站分配给所述第二UE的第一资源的资源指示信息。
  6. 一种设备到设备D2D的资源分配方法，其特征在于，所述方法包括：
    第二用户设备UE发送第一消息给第二UE，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
    所述第二UE接收所述第一UE发送的第二消息，所述第二消息携带分配给所述第二UE的第一资源的资源指示信息；
    所述第二UE根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。
  7. 根据权利要求6所述的方法，其特征在于，所述第一资源是由所述第一UE根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展后分配给所述第二UE的。
  8. 根据权利要求7所述的方法，其特征在于，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
  9. 根据权利要求6所述的方法，其特征在于，所述第一资源是由所述第一UE将所述第一消息发送给所述基站后，由所述基站分配给所述第 二UE的。
  10. 一种设备到设备D2D的资源分配方法，其特征在于，所述方法包括：
    基站接收第一用户设备UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为所述基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
    所述基站根据所述第一消息，给所述第二UE分配第一资源；
    所述基站发送第二消息给所述第一UE，所述第二消息携带所述第一资源的资源指示信息，由所述第一UE将所述资源指示信息发送给所述第二UE。
  11. 一种第一用户设备UE，其特征在于，所述第一UE包括：接收单元、处理单元和发送单元；
    所述接收单元，用于接收第二UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
    所述处理单元，用于根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息；
    所述发送单元，用于发送第二消息给所述第二UE，所述第二消息携带所述资源指示信息，由所述第二UE根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。
  12. 根据权利要求11所述的第一UE，其特征在于，所述处理单元具体用于：
    根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展，获得扩展的SCI格式0，所述扩展的SCI格式0用于指示分配给所述第二UE的第一资源。
  13. 根据权利要求12所述的第一UE，其特征在于，所述处理单元具体用于执行以下方式之一或任意组合：
    将所述预先存储的SCI格式0中的频率跳频标识字段增加1比特，所述1比特用于指示所述扩展的SCI格式0中的频率跳频标识是否与所述预 先存储的SCI格式0中跳频标识相同；
    将所述预先存储的SCI格式0中的资源块分配和跳频资源分配字段增加N比特，所述N比特用于指示所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在频域资源上的偏移量，N为正整数；
    将所述预先存储的SCI格式0中的时间资源模式字段增加M比特，所述M比特用于指示所述第一资源相对于所述第二资源在时域资源上的偏移量，M为正整数；
    将所述预先存储的SCI格式0中的调制编码方式MCS字段增加Z比特，所述Z比特用于指示所述第一资源的MCS索引相对于所述第二资源的MSC索引的偏移量，Z为正整数；和
    将所述预先存储的SCI格式0中的时间提前指示字段增加1比特，所述1比特用于指示所述第二UE采用所述第二UE的时间提前指示还是采用所述第一UE的时间提前指示。
  14. 根据权利要求12或13所述的第一UE，其特征在于，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
  15. 根据权利要求11所述的第一UE，其特征在于，所述处理单元具体用于：
    发送所述第一消息给所述基站；
    接收所述基站发送的第二消息，所述第二消息携带所述基站分配给所述第二UE的第一资源的资源指示信息。
  16. 一种第二用户设备UE，其特征在于，所述第二UE包括：发送单元和接收单元；
    所述发送单元，用于发送第一消息给第二UE，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
    所述接收单元，用于接收所述第一UE发送的第二消息，所述第二消息携带分配给所述第二UE的第一资源的资源指示信息；
    所述发送单元，还用于根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。
  17. 根据权利要求16所述的第二UE，其特征在于，所述第一资源是由所述第一UE根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展后分配给所述第二UE的。
  18. 根据权利要求17所述的第二UE，其特征在于，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
  19. 根据权利要求16所述的第二UE，其特征在于，所述第一资源是由所述第一UE将所述第一消息发送给所述基站后，由所述基站分配给所述第二UE的。
  20. 一种基站，其特征在于，所述基站包括：接收单元、处理单元和发送单元；
    所述接收单元，用于接收第一用户设备UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为所述基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
    所述处理单元，用于根据所述第一消息，给所述第二UE分配第一资源；
    所述发送单元，用于发送第二消息给所述第一UE，所述第二消息携带所述第一资源的资源指示信息，由所述第一UE将所述资源指示信息发送给所述第二UE。
  21. 一种第一用户设备UE，其特征在于，所述第一UE包括：处理器、第一接口电路、第二接口电路、存储器和总线；所述处理器、所述第一接口电路、所述第二接口电路和所述存储器通过所述总线连接并完成相互间的通信；
    所述第一接口电路，用于接收第二UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
    所述处理器，用于根据所述第一消息获取分配给所述第二UE的第一资源的资源指示信息；
    所述第二接口电路，用于发送第二消息给所述第二UE，所述第二消息携带所述资源指示信息，由所述第二UE根据所述资源指示信息使用所 述第一资源向所述第一UE发送数据。
  22. 根据权利要求21所述的第一UE，其特征在于，所述处理器具体用于：
    根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展，获得扩展的SCI格式0，所述扩展的SCI格式0用于指示分配给所述第二UE的第一资源。
  23. 根据权利要求22所述的第一UE，其特征在于，所述处理器具体用于执行以下方式之一或任意组合：
    将所述预先存储的SCI格式0中的频率跳频标识字段增加1比特，所述1比特用于指示所述扩展的SCI格式0中的频率跳频标识是否与所述预先存储的SCI格式0中跳频标识相同；
    将所述预先存储的SCI格式0中的资源块分配和跳频资源分配字段增加N比特，所述N比特用于指示所述第一资源相对于所述预先存储的SCI格式0指示的第二资源在频域资源上的偏移量，N为正整数；
    将所述预先存储的SCI格式0中的时间资源模式字段增加M比特，所述M比特用于指示所述第一资源相对于所述第二资源在时域资源上的偏移量，M为正整数；
    将所述预先存储的SCI格式0中的调制编码方式MCS字段增加Z比特，所述Z比特用于指示所述第一资源的MCS索引相对于所述第二资源的MSC索引的偏移量，Z为正整数；和
    将所述预先存储的SCI格式0中的时间提前指示字段增加1比特，所述1比特用于指示所述第二UE采用所述第二UE的时间提前指示还是采用所述第一UE的时间提前指示。
  24. 根据权利要求22或23所述的第一UE，其特征在于，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
  25. 根据权利要求21所述的第一UE，其特征在于，所述处理器具体用于：
    通过所述第二接口电路发送所述第一消息给所述基站；
    通过所述第一接口电路接收所述基站发送的第二消息，所述第二消 息携带所述基站分配给所述第二UE的第一资源的资源指示信息。
  26. 一种第二用户设备UE，其特征在于，所述第二UE包括：第一接口电路、第二接口电路、存储器和总线；所述第一接口电路、所述第二接口电路和所述存储器通过所述总线连接并完成相互间的通信；
    所述第一接口电路，用于发送第一消息给第二UE，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
    所述第二接口电路，用于接收所述第一UE发送的第二消息，所述第二消息携带分配给所述第二UE的第一资源的资源指示信息；
    所述第一接口电路，还用于根据所述资源指示信息使用所述第一资源向所述第一UE发送数据。
  27. 根据权利要求26所述的第二UE，其特征在于，所述第一资源是由所述第一UE根据所述第一消息，对预先存储的旁路控制信息SCI格式0进行扩展后分配给所述第二UE的。
  28. 根据权利要求27所述的第二UE，其特征在于，所述第一资源相对于所述预先存储的SCI格式0指示的第二资源有固定偏移。
  29. 根据权利要求26任一项所述的第二UE，其特征在于，所述第一资源是由所述第一UE将所述第一消息发送给所述基站后，由所述基站分配给所述第二UE的。
  30. 一种基站，其特征在于，所述基站包括：处理器、第一接口电路、第二接口电路、存储器和总线；所述处理器、所述第一接口电路、所述第二接口电路和所述存储器通过所述总线连接并完成相互间的通信；
    所述第一接口电路，用于接收第一用户设备UE发送的第一消息，所述第一消息用于请求给所述第二UE分配资源，其中，所述第一UE为所述基站网络覆盖范围内的UE，所述第二UE为所述基站网络覆盖范围外的UE；
    所述处理器，用于根据所述第一消息，给所述第二UE分配第一资源；
    所述第二接口电路，用于发送第二消息给所述第一UE，所述第二消 息携带所述第一资源的资源指示信息，由所述第一UE将所述资源指示信息发送给所述第二UE。
  31. 一种设备到设备D2D通信系统，其特征在于，所述D2D通信系统包括：基站、如权利要求11)14任一项所述的第一用户设备UE、以及如权利要求16)18任一项所述的第二UE；或者，
    包括：基站、如权利要求21)24任一项所述的第一UE、以及如权利要求26)28任一项所述的第二UE。
  32. 一种设备到设备D2D通信系统，其特征在于，所述D2D通信系统包括：如权利要求15所述的第一用户设备UE、如权利要求19所述的第二UE、以及如权利要求20所述的基站；或者，
    包括：如权利要求25所述的第一UE、如权利要求29所述的第二UE、以及如权利要求30所述的基站。
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