WO2016019864A1 - 设备到设备通信中的数据接收方法、发送方法及设备 - Google Patents
设备到设备通信中的数据接收方法、发送方法及设备 Download PDFInfo
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- WO2016019864A1 WO2016019864A1 PCT/CN2015/086113 CN2015086113W WO2016019864A1 WO 2016019864 A1 WO2016019864 A1 WO 2016019864A1 CN 2015086113 W CN2015086113 W CN 2015086113W WO 2016019864 A1 WO2016019864 A1 WO 2016019864A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
Definitions
- the present disclosure relates to the field of communications technologies, and in particular, to a data receiving method, a transmitting method, and a device in device to device (D2D) communication.
- D2D device to device
- the data communication process between two terminals is as shown in FIG. 1 , and services such as voice and data between two terminals pass through respective base stations (ordinary base station or evolved base station) and a core network. Interact.
- D2D communication that is, terminal direct communication technology
- a neighboring terminal UE
- UE can perform data transmission through a direct link in a short range without requiring a central node (such as a base station) to forward, as shown in FIG. 2 .
- D2D communication has the following advantages:
- the terminal short-distance direct communication mode can achieve higher data transmission rate, lower delay and lower power consumption
- the spectrum resources can be effectively utilized by utilizing the widely distributed communication terminals in the network and the short-distance characteristics of the D2D communication link;
- the direct communication method of D2D can adapt to the local data sharing requirements of services such as wireless end-to-end (P2P), and provide data services with flexible adaptability;
- P2P wireless end-to-end
- D2D direct communication can utilize a large number of widely distributed communication terminals in the network to expand the coverage of the network.
- the UE1 and the UE2 in the D2D communication may be located in the network coverage, or may be located outside the network coverage, and the UE1 and the UE2 may be the sender and the receiver. Receiving party.
- both UE1 and UE2 are outside the network coverage; in the scenario shown in Figure 3b, UE1 is within the network coverage and UE2 is outside the network coverage; as shown in Figure 3c
- UE1 and UE2 are within the coverage of the same base station; in the scenario shown in Figure 3d, UE1 and UE2 are located within the coverage of different base stations.
- a typical application scenario in addition to the one-to-one communication mode between users, a typical application scenario also includes a D2D group or broadcast communication, which can be used for fire protection, rescue, and anti-terrorism in public safety applications.
- the UE within the network coverage sends and receives data according to the resource pool configuration information configured by the network, and the UE outside the network coverage sends and receives data according to the predefined resource pool configuration information. If the D2D communication is a partial network coverage scenario or a different cell coverage scenario, the UE does not know which resource pool configuration information is used by the UE, and how to receive the data of the peer UE is currently not available.
- An embodiment of the present disclosure provides a data receiving method, a sending method, and a device in a device-to-device communication, which are used to receive data of a peer UE in a case where the UE determines which resource pool configuration information is used by the UE. solution.
- a data receiving method in device-to-device (D2D) communication including:
- determining the resource pool configuration information used by the sending end according to the detected control information including:
- DMRS demodulation reference signal
- the identifier information is an identifier associated with the cell identifier
- the identifier information is a preset value.
- the locally saved resource pool configuration information is differentiated by source, including:
- the resource pool configuration information includes:
- Time-frequency resource indication information and/or frequency hopping indication information, and/or cyclic prefix (CP) length indication information.
- CP cyclic prefix
- the resource pool configuration information is composed of control resource pool configuration information for control information and data resource pool configuration information for data information;
- the frequency hopping indication information includes:
- the frequency hopping indication information of the control information transmission in the control resource pool configuration information and the frequency hopping indication information of the data information transmission in the data resource pool configuration information;
- the time-frequency resource indication information includes:
- the CP length indication information includes:
- the CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information are CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information.
- a data transmission method for device-to-device (D2D) communication include:
- the at least one resource pool configuration information is differentiated according to sources:
- determining a resource pool configuration information from the at least one resource pool configuration information including:
- the pre-configured resource pool configuration information is determined as the resource pool configuration information
- the resource pool configuration information indicated by the base station is determined as the resource pool configuration information, or any one of the resource pool configuration information forwarded by other UEs is determined as the resource. Pool configuration information.
- control information including:
- DMRS demodulation reference signal
- the identifier information is an identifier associated with the cell identifier
- the identifier information is a preset value.
- the resource pool configuration information includes:
- Time-frequency resource indication information and/or frequency hopping indication information and/or cyclic prefix (CP) length indication information are examples of time-frequency resource indication information and/or frequency hopping indication information and/or cyclic prefix (CP) length indication information.
- the resource pool configuration information is composed of control resource pool configuration information for control information and data resource pool configuration information for data information;
- the frequency hopping indication information includes:
- the frequency hopping indication information of the control information transmission in the control resource pool configuration information and the frequency hopping indication information of the data information transmission in the data resource pool configuration information;
- the time-frequency resource indication information includes:
- the CP length indication information includes:
- the CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information are CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information.
- a user equipment for D2D communication, including:
- a detecting unit configured to detect, by using each locally saved resource pool configuration information, control information sent by the sending end;
- a determining unit configured to determine resource pool configuration information used by the sending end according to the control information detected by the detecting unit
- the receiving unit is configured to receive the data information of the sending end according to the resource pool configuration information determined by the determining unit and the control information detected by the detecting unit.
- the determining unit is specifically configured to:
- DMRS demodulation reference signal
- the identifier information is an identifier associated with the cell identifier
- the identifier information is a preset value.
- the locally saved resource pool configuration information is differentiated by source, including:
- the resource pool configuration information includes:
- Time-frequency resource indication information and/or frequency hopping indication information, and/or cyclic prefix (CP) length indication information.
- CP cyclic prefix
- the resource pool configuration information is composed of control resource pool configuration information for control information and data resource pool configuration information for data information;
- the frequency hopping indication information includes:
- the frequency hopping indication information of the control information transmission in the control resource pool configuration information and the frequency hopping indication information of the data information transmission in the data resource pool configuration information;
- the time-frequency resource indication information includes:
- the CP length indication information includes:
- the CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information are CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information.
- a user equipment for D2D communication, including:
- a determining unit configured to determine a resource pool configuration information from the at least one resource pool configuration information
- a generating unit configured to generate control information according to the resource pool configuration information determined by the determining unit
- a sending unit configured to send the control information generated by the generating unit according to the resource pool configuration information determined by the determining unit, and send the data information according to the indication of the control information.
- the at least one resource pool configuration information is differentiated according to sources:
- the determining unit is specifically configured to:
- the pre-configured resource pool configuration information is determined as the resource pool configuration information
- the resource pool configuration information indicated by the base station is determined as the resource pool configuration information, or any one of the resource pool configuration information forwarded by other UEs is determined as the resource pool configuration. information.
- the generating unit is specifically configured to:
- DMRS demodulation reference signal
- the identifier information is an identifier associated with the cell identifier
- the identifier information is a preset value.
- the resource pool configuration information includes:
- Time-frequency resource indication information and/or frequency hopping indication information and/or cyclic prefix (CP) length indication information are examples of time-frequency resource indication information and/or frequency hopping indication information and/or cyclic prefix (CP) length indication information.
- the resource pool configuration information is composed of control resource pool configuration information for control information and data resource pool configuration information for data information;
- the frequency hopping indication information includes:
- the frequency hopping indication information of the control information transmission in the control resource pool configuration information and the frequency hopping indication information of the data information transmission in the data resource pool configuration information;
- the time-frequency resource indication information includes:
- the CP length indication information includes:
- the CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information are CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information.
- the receiving end uses the configuration information of each resource pool saved locally to detect the control information sent by the sending end, and determines the resource pool configuration information used by the sending end according to the detected control information, so that The determined resource pool configuration information and the control information receive the data information of the sender.
- a user equipment for device-to-device (D2D) communication, including:
- a memory coupled to the processor via a bus interface and configured to store programs and data used by the processor in performing operations
- a detecting unit configured to detect, by using each locally saved resource pool configuration information, control information sent by the sending end;
- a determining unit configured to determine resource pool configuration information used by the sending end according to the control information detected by the detecting unit
- the receiving unit is configured to receive the data information of the sending end according to the resource pool configuration information determined by the determining unit and the control information detected by the detecting unit.
- a user equipment for device-to-device (D2D) communication, including:
- a memory coupled to the processor via a bus interface and configured to store programs and data used by the processor in performing operations
- a determining unit configured to determine a resource pool configuration information from the at least one resource pool configuration information
- a generating unit configured to generate control information according to the resource pool configuration information determined by the determining unit
- a sending unit configured to send the control information generated by the generating unit according to the resource pool configuration information determined by the determining unit, and send the data information according to the indication of the control information.
- 1 is a schematic diagram of an existing cellular communication
- FIG. 2 is a schematic diagram of a conventional D2D communication
- FIG. 3a is a schematic diagram of an existing D2D communication application scenario
- FIG. 3b is a schematic diagram of another existing D2D communication application scenario
- FIG. 3c is a schematic diagram of another existing D2D communication application scenario
- FIG. 3d is a schematic diagram of another existing D2D communication application scenario
- FIG. 4 is a schematic diagram of a data receiving process in an embodiment of the present disclosure.
- FIG. 5 is a schematic diagram of a data transmission process in an embodiment of the present disclosure.
- FIG. 6 is a schematic diagram of an application scenario of partial network coverage according to an embodiment of the present disclosure.
- FIG. 7 is a schematic diagram of an application scenario of coverage of different cells in an embodiment of the present disclosure.
- FIG. 8 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
- FIG. 9 is a schematic structural diagram of another UE according to an embodiment of the present disclosure.
- FIG. 10 is a schematic structural diagram of another UE according to an embodiment of the present disclosure.
- FIG. 11 is a schematic structural diagram of another UE in an embodiment of the present disclosure.
- a detailed method for receiving data by the receiving end UE in D2D communication is as follows:
- Step 401 The receiving UE detects the control information sent by the sending end by using each resource pool configuration information saved locally.
- the receiving end UE uses the blind detection method to detect the control information according to the resources that can be used for the control information transmission configured in the resource pool configuration information, and the process and the physical downlink control
- the blind detection of the channel (PDCCH) is similar.
- control information is blindly detected on all resources configured in the resource pool configuration information. In another specific implementation manner, the control information is detected on a part of resources configured in the resource pool configuration information according to a predefined rule. .
- the UE updates the locally saved resource pool configuration information according to the set time period. If the UE does not receive the resource pool configuration information within the set time period, the resource pool configuration information is saved from the locally saved resource. Deleted from the pool configuration information list.
- the resource pool configuration information that is locally saved by the receiving end UE may be any one or more of pre-configured resource pool configuration information, resource pool configuration information indicated by the base station, and resource pool configuration information indicated by other UEs. .
- the resource pool configuration information indicated by different base stations is different.
- the resource pool configuration information indicated by other UEs may be one or more.
- the UE if the UE is located outside the network coverage, the UE itself is pre-configured with resource pool configuration information; if the UE is located in the coverage of the base station, the UE receives the resource pool configuration information indicated by the base station, or receives the relayed by other UEs.
- the resource pool configuration information indicated by the base station; the UE may receive one or more resource pool configuration information forwarded by other UEs, whether the UE is located within the network coverage, and the resource pool configuration information forwarded by other UEs may be the home base station. Indicated resource pool configuration information.
- the resource pool configuration information includes but is not limited to:
- Time-frequency resource indication information and/or frequency hopping indication information, and/or cyclic prefix (CP) length indication information.
- CP cyclic prefix
- the resource pool configuration information is composed of control resource pool configuration information for control information and data resource pool configuration information for data information.
- the frequency hopping indication information may include the frequency hopping indication information of the control information transmission and the frequency hopping indication information of the data information transmission, and the control information.
- the frequency hopping indication information of the transmission is located in the configuration resource pool configuration information, and the frequency hopping indication information of the data information transmission is located in the data resource pool configuration information; if the frequency hopping mode used for the control information transmission is the same as the frequency hopping mode used for the data information transmission, There is no need to separately indicate the frequency hopping indication information of the control information transmission and the frequency hopping indication information of the data information transmission.
- the time-frequency resource indication information includes:
- the CP length indication information includes:
- the CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information are CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information.
- the time-frequency resource indication information includes, but is not limited to, indication information of a D2D transmission subframe and/or indication information of a frequency resource location.
- Step 402 The receiving UE determines the resource pool configuration information used by the sending end according to the detected control information.
- the method for determining, by the UE, the resource pool configuration information used by the sending end according to the detected control information includes, but is not limited to, the following enumerated manners:
- the identifier information carried in the specified bit of the detected control information is obtained, and the resource pool configuration information corresponding to the identifier information is determined as the resource pool configuration information used by the sending end.
- the second method is to obtain the identifier information carried in the demodulation reference signal (DMRS) sequence used for the detected transmission control information, and determine the resource pool configuration corresponding to the identifier information as the resource pool configuration information used by the sending end. .
- DMRS demodulation reference signal
- the location of the transmission resource of the detected control information is obtained, and the resource pool configuration information corresponding to the location of the transmission resource is determined to be sent according to the correspondence between the location of the preset transmission resource and the resource pool configuration information.
- Resource pool configuration information used by the endpoint is obtained, and the resource pool configuration information corresponding to the location of the transmission resource is determined to be sent according to the correspondence between the location of the preset transmission resource and the resource pool configuration information.
- the retransmission mode of the detected control information may be obtained, and the resource pool corresponding to the retransmission mode is configured according to the correspondence between the preset retransmission mode and the resource pool configuration information.
- the information is determined as the resource pool configuration information used by the sender.
- the identifier information is an identifier associated with the cell identifier.
- the identifier information is a preset value.
- the identifier associated with the cell identifier may be directly used as a cell identifier, or may be a cell according to the cell identifier.
- the identification information calculated by using a predetermined rule is identified.
- Step 403 The receiving UE receives the data information of the sending end according to the determined resource pool configuration information and the detected control information.
- the receiving end UE determines the resource occupied by the data information of the sending end according to the determined resource pool configuration information, and receives the data information of the sending end according to the indication of the control information on the determined resource.
- the receiving end UE uses the locally saved resource pool configuration information to detect the control information sent by the sending end, and determines the resource pool configuration information used by the sending end according to the detected control information, so as to be able to determine the resource pool according to the determined resource pool.
- the configuration information and the detected control information receive the data information of the sender.
- the detailed method for transmitting data by the transmitting end UE in D2D communication is as follows:
- Step 501 The UE determines one resource pool configuration information from the at least one resource pool configuration information.
- the at least one resource pool configuration information includes, according to the source, any one or more of pre-configured resource pool configuration information, resource pool configuration information indicated by the base station, and resource pool configuration information indicated by other UEs.
- the pre-configured resource pool configuration information is determined as the resource pool configuration information.
- the resource pool configuration information indicated by the base station is determined as the resource pool configuration information, or any one of the resource pool configuration information forwarded by other UEs is determined as the resource pool configuration information.
- the resource pool configuration information indicated by the different base stations is different, and correspondingly, the resource pool configuration information configured by the base station covering the UE that is relayed by the UE under different base station coverage is different.
- any one of the resource pool configuration information includes but is not limited to:
- Time-frequency resource indication information and/or frequency hopping indication information and/or cyclic prefix (CP) length indication information are examples of time-frequency resource indication information and/or frequency hopping indication information and/or cyclic prefix (CP) length indication information.
- the resource pool configuration information is composed of control resource pool configuration information for control information and data resource pool configuration information for data information;
- the frequency hopping indication information may include the frequency hopping indication information and the data information transmission of the control information transmission.
- the frequency hopping indication information of the transmission information is located in the control resource pool configuration information, and the frequency hopping indication information of the data information transmission is located in the data resource pool configuration information; if the frequency hopping mode and data used for the control information transmission are used
- the frequency hopping mode used for information transmission is the same, and there is no need to separately indicate the frequency hopping indication information of the control information transmission and the frequency hopping indication information of the data information transmission.
- the time-frequency resource indication information includes:
- the CP length indication information includes:
- the CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information are CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information.
- the time-frequency resource indication information includes, but is not limited to, indication information of a D2D transmission subframe and/or indication information of a frequency resource location.
- Step 502 The UE generates control information according to the determined resource pool configuration information.
- the UE acquires preset identifier information corresponding to the determined resource pool configuration information, where the specified bit in the control information carries the identifier information;
- the UE acquires preset identification information corresponding to the determined resource pool configuration information, and carries the identifier information in a demodulation reference signal (DMRS) sequence used in the transmission control information.
- DMRS demodulation reference signal
- the identifier information is an identifier associated with the cell identifier, if the determined resource pool configuration information is generated by the UE in the cell or network coverage area;
- the identifier information is a preset value.
- the identifier associated with the cell identifier may be the cell identifier directly, or may be the identifier information calculated according to the cell identifier by using a predetermined rule.
- Step 503 The UE sends control information according to the determined resource pool configuration information, and sends the data information according to the indication of the control information.
- the UE sends the control information according to the determined location of the transmission resource in the determined resource pool configuration information, so that the receiving UE can be implicitly determined according to the location of the transmission resource of the control information.
- the UE sends the control information according to the retransmission mode configured in the determined resource pool configuration information, so that the receiving UE can implicitly determine the resource pool configuration information according to the control information according to the transmission mode of the control information.
- the UE sends the data information according to the indication of the control information according to the resource occupied by the data information configured in the determined resource pool configuration mode.
- the UE determines resource pool configuration information, generates control information according to the determined resource pool configuration information, and sends control information according to the determined resource pool configuration information, and sends data according to the determined resource pool configuration information and the indication of the control information.
- the information enables the receiving UE to determine the resource pool configuration information according to the control information, and further receives the data information according to the determined resource pool configuration information.
- the application scenario of the partial network coverage is as shown in FIG. 6. It is assumed that the resource pool configuration information is configured as the information of the subframe used for D2D transmission, where:
- the UE1 in the coverage of the base station forwards the resource pool configuration information from the base station;
- the UE2 in the coverage of the base station sends control information and data information according to the resource pool configuration information from the base station;
- the UE3 outside the coverage of the base station sends control information and data information according to the pre-configured resource pool configuration information.
- the UE4 outside the coverage of the base station detects the control information according to the resource pool configuration information configured by the base station and the pre-configured resource pool configuration information. After detecting the control information sent by the UE2, the resource pool configuration indicated in the detected control information is detected.
- the information (resource pool configuration information configured by the base station) receives the data information sent by the UE2;
- the UE4 outside the coverage of the base station detects the control information according to the resource pool configuration information and the pre-configured resource pool configuration information configured by the base station, and after detecting the control information sent by the UE3, according to the detected resource indicated in the control information.
- the pool configuration information pre-configured resource pool configuration information
- the application scenario of the partial network coverage is as shown in FIG. 6.
- the frequency hopping mode of the UE in the coverage of the base station is configured in the resource configuration information, and the UE outside the coverage of the base station is configured.
- the frequency hopping mode is predefined in the resource configuration information.
- the UEs in the coverage of the base station may be configured to use a physical uplink control channel (PUCCH) frequency hopping mode or a physical uplink shared channel (PUSCH) frequency hopping mode, where the PUSCH frequency hopping mode needs to be further configured with a subband. size.
- PUCCH physical uplink control channel
- PUSCH physical uplink shared channel
- the UE1 in the coverage of the base station forwards the frequency hopping configuration information of the base station;
- the UE2 in the coverage of the base station sends control information and data information according to the frequency hopping configuration information of the base station;
- the UE3 outside the coverage of the base station sends control information and data information according to the pre-configured frequency hopping configuration information.
- the UE4 outside the coverage of the base station detects the control information according to the hopping configuration information of the base station and the pre-configured hopping configuration information.
- the hopping configuration information indicated by the control information of the UE2 is used.
- the frequency hopping configuration information receives the data information sent by the UE2;
- the UE4 outside the coverage of the base station detects the control information according to the hopping configuration information of the base station and the pre-configured hopping configuration information.
- the control information of the UE3 is detected, the hopping configuration information indicated by the control information of the UE3 is used.
- the pre-configured frequency hopping configuration information receives the data information sent by the UE3.
- FIG. 7 an application scenario covered by different cells is shown in FIG. 7, where:
- the UE1 in the coverage of the base station eNB1 forwards the resource pool configuration information 1 of the eNB1;
- the UE2 in the coverage of the eNB1 transmits the control information and the data information according to the resource pool configuration information 1 of the eNB1;
- the UE3 within the coverage of the base station eNB2 transmits the control information and the data information according to the resource pool configuration information 2 of the eNB2;
- the UE4 in the coverage of the eNB2 acquires the resource pool configuration information 1 of the UE1 relay and the resource pool configuration information 2 sent by the eNB2, and the process of receiving the control information and the data information is as follows:
- the UE4 detects the control information according to the resource pool configuration information 1 and the resource pool configuration information 2, and if the control information sent by the UE2 is detected, the resource pool configuration information 1 indicated by the control information receives the data information sent by the UE2;
- the UE 4 detects the control information according to the resource pool configuration information 1 and the resource pool configuration information 2. If the control information sent by the UE 3 is detected, the resource pool configuration information 2 indicated by the control information receives the data information sent by the UE 3.
- a UE is also provided for the D2D communication in the embodiment of the present disclosure.
- the UE refer to the description of the UE at the receiving end in the method part above, and the repeated description is not repeated, as shown in FIG. 8 .
- the UE mainly includes:
- the detecting unit 801 is configured to detect, by using each of the resource pool configuration information saved locally, control information sent by the sending end;
- a determining unit 802 configured to determine resource pool configuration information used by the sending end according to the control information detected by the detecting unit;
- the receiving unit 803 is configured to receive the data information of the sending end according to the resource pool configuration information determined by the determining unit and the control information detected by the detecting unit.
- the determining unit 802 is specifically configured to:
- DMRS demodulation reference signal
- the identifier information is an identifier associated with the cell identifier
- the identifier information is a preset value.
- the identifier associated with the cell identifier may be the cell identifier directly, or may be the identifier information calculated according to the cell identifier by using a predetermined rule.
- the locally saved resource pool configuration information is divided by source, but is not limited to:
- the resource pool configuration information includes but is not limited to:
- Time-frequency resource indication information and/or frequency hopping indication information, and/or cyclic prefix (CP) length indication information.
- CP cyclic prefix
- the resource pool configuration information is composed of control resource pool configuration information for control information and data resource pool configuration information for data information;
- the frequency hopping indication information may include the frequency hopping indication information of the control information transmission and the frequency hopping indication information of the data information transmission, and the control information.
- the frequency hopping indication information of the transmission is located in the configuration resource pool configuration information, and the frequency hopping indication information of the data information transmission is located in the data resource pool configuration information; if the frequency hopping mode used for the control information transmission is the same as the frequency hopping mode used for the data information transmission, There is no need to separately indicate the frequency hopping indication information of the control information transmission and the frequency hopping indication information of the data information transmission.
- the time-frequency resource indication information includes:
- the CP length indication information includes:
- the CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information are CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information.
- the embodiment of the present disclosure further provides another UE.
- the UE refer to the description of the receiving UE in the foregoing method part, and the repeated description is not repeated, as shown in FIG. mainly includes:
- the processor 901 is configured to detect, by using the locally saved resource pool configuration information, the control information sent by the sending end, and determine the resource pool configuration information used by the sending end according to the detected control information.
- the receiver 902 is configured to receive the data information of the sending end according to the resource pool configuration information determined by the processor 901 and the control information.
- the processor 901 is specifically configured to:
- DMRS demodulation reference signal
- the identifier information is an identifier associated with the cell identifier
- the identifier information is a preset value.
- the identifier associated with the cell identifier may be the cell identifier directly, or may be the identifier information calculated according to the cell identifier by using a predetermined rule.
- the locally saved resource pool configuration information is differentiated by source, including:
- the resource pool configuration information includes:
- Time-frequency resource indication information and/or frequency hopping indication information, and/or cyclic prefix (CP) length indication information.
- CP cyclic prefix
- the resource pool configuration information is composed of control resource pool configuration information for control information and data resource pool configuration information for data information;
- the frequency hopping indication information may include the frequency hopping indication information of the control information transmission and the frequency hopping indication information of the data information transmission, and the control information.
- the frequency hopping indication information of the transmission is located in the configuration resource pool configuration information, and the frequency hopping indication information of the data information transmission is located in the data resource pool configuration information; if the frequency hopping mode used for the control information transmission is the same as the frequency hopping mode used for the data information transmission, There is no need to separately indicate the frequency hopping indication information of the control information transmission and the frequency hopping indication information of the data information transmission.
- the time-frequency resource indication information includes:
- the CP length indication information includes:
- the CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information are CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information.
- a UE is also provided in the embodiment of the present disclosure for D2D communication.
- the UE refer to the description of the sending end in the method part above, where the repetition is repeated. No further details, as shown in FIG. 10, the UE mainly includes:
- a determining unit 1001 configured to determine one resource pool configuration information from the at least one resource pool configuration information
- the generating unit 1002 is configured to generate control information according to the resource pool configuration information determined by the determining unit 1001;
- the sending unit 1003 is configured to send, according to the resource pool configuration information determined by the determining unit 1001, the control information generated by the generating unit 1002 and send the data information according to the indication of the control information.
- the at least one resource pool configuration information is differentiated according to sources:
- the determining unit 1001 is specifically configured to:
- the pre-configured resource pool configuration information is determined as the resource pool configuration information
- the resource pool configuration information indicated by the base station is determined as the resource pool configuration information, or any one of the resource pool configuration information forwarded by other UEs is determined as the resource pool configuration. information.
- the generating unit 1002 is specifically configured to:
- DMRS demodulation reference signal
- the identifier information is an identifier associated with the cell identifier
- the identifier information is a preset value.
- the identifier associated with the cell identifier may be the cell identifier directly, or may be the identifier information calculated according to the cell identifier by using a predetermined rule.
- the resource pool configuration information includes:
- Time-frequency resource indication information and/or frequency hopping indication information and/or cyclic prefix (CP) length indication information are examples of time-frequency resource indication information and/or frequency hopping indication information and/or cyclic prefix (CP) length indication information.
- the resource pool configuration information is composed of control resource pool configuration information for control information and data resource pool configuration information for data information;
- the frequency hopping indication information may include the frequency hopping indication information of the control information transmission and the frequency hopping indication information of the data information transmission, and the control information.
- the frequency hopping indication information of the transmission is located in the configuration resource pool configuration information, and the frequency hopping indication information of the data information transmission is located in the data resource pool configuration information; if the frequency hopping mode used for the control information transmission is the same as the frequency hopping mode used for the data information transmission, There is no need to separately indicate the frequency hopping indication information of the control information transmission and the frequency hopping indication information of the data information transmission.
- the time-frequency resource indication information includes:
- the CP length indication information includes:
- the CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information are CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information.
- a UE is also provided for the D2D communication in the embodiment of the present disclosure.
- the UE mainly includes:
- the processor 1101 is configured to determine one resource pool configuration information from the at least one resource pool configuration information, and generate control information according to the determined resource pool configuration information.
- the transmitter 1102 is configured to send the control information according to the determined resource pool configuration information, and send the data information according to the indication of the control information.
- the at least one resource pool configuration information is differentiated according to sources:
- the processor 1101 is specifically configured to:
- the pre-configured resource pool configuration information is determined as the resource pool configuration information
- the resource pool configuration information indicated by the base station is determined as the resource pool configuration information, or any one of the resource pool configuration information forwarded by other UEs is determined as the resource pool configuration. information.
- the processor acquires preset identifier information corresponding to the determined resource pool configuration information, where the specified bit in the control information carries the identifier information;
- DMRS demodulation reference signal
- the identifier information is an identifier associated with the cell identifier
- the identifier information is a preset value.
- the identifier associated with the cell identifier may be the cell identifier directly, or may be the identifier information calculated according to the cell identifier by using a predetermined rule.
- the resource pool configuration information includes:
- Time-frequency resource indication information and/or frequency hopping indication information and/or cyclic prefix (CP) length indication information are examples of time-frequency resource indication information and/or frequency hopping indication information and/or cyclic prefix (CP) length indication information.
- the resource pool configuration information is composed of control resource pool configuration information for control information and data resource pool configuration information for data information;
- the frequency hopping indication information may include the frequency hopping indication information of the control information transmission and the frequency hopping indication information of the data information transmission, and the control information.
- the frequency hopping indication information of the transmission is located in the configuration resource pool configuration information, and the frequency hopping indication information of the data information transmission is located in the data resource pool configuration information; if the frequency hopping mode used for the control information transmission is the same as the frequency hopping mode used for the data information transmission, There is no need to separately indicate the frequency hopping indication information of the control information transmission and the frequency hopping indication information of the data information transmission.
- the time-frequency resource indication information includes:
- Time-frequency resource indication information for transmitting control information in the control resource pool configuration information And time-frequency resource indication information for transmitting data information located in the data resource pool configuration information;
- the CP length indication information includes:
- the CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information are CP length indication information of the control information transmission located in the control resource pool configuration information, and the CP length indication information of the data information transmission located in the data resource pool configuration information.
- embodiments of the present disclosure can be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
Abstract
Description
Claims (28)
- 一种设备到设备通信中的数据接收方法,包括:采用本地保存的每个资源池配置信息检测发送端发送的控制信息;根据检测到的所述控制信息确定所述发送端所采用的资源池配置信息;根据确定的所述资源池配置信息以及所述控制信息接收所述发送端的数据信息。
- 如权利要求1所述的方法,其中,根据检测到的所述控制信息确定所述发送端所采用的资源池配置信息,包括:获取所述控制信息的指定比特位携带的标识信息,将所述标识信息对应的资源池配置信息确定为所述发送端所采用的资源池配置信息;或者,获取传输所述控制信息所采用的解调用参考信号序列中携带的标识信息,将所述标识信息对应的资源池配置确定为所述发送端所采用的资源池配置信息;或者,获取所述控制信息的传输资源的位置,根据预设的传输资源的位置与资源池配置信息的对应关系,将与所述传输资源的位置对应的资源池配置信息确定为所述发送端所采用的资源池配置信息。
- 如权利要求2所述的方法,其中,若所述资源池配置信息源于小区或网络覆盖范围内的用户设备,则所述标识信息为与小区标识关联的标识;若所述资源池配置信息源于网络覆盖范围外的用户设备,则所述标识信息为预设值。
- 如权利要求1-3任一项所述的方法,其中,本地保存的资源池配置信息按照来源区分,包括:预先配置的资源池配置信息、基站指示的资源池配置信息和其它用户设备指示的资源池配置信息中的任意一个或多个。
- 如权利要求4所述的方法,其中,所述资源池配置信息包括:时频资源指示信息,和/或跳频指示信息,和/或循环前缀长度指示信息。
- 如权利要求5所述的方法,其中,所述资源池配置信息由用于控制信息的控制资源池配置信息和用于数据信息的数据资源池配置信息组成;所述跳频指示信息包括:位于所述控制资源池配置信息中的控制信息传输的跳频指示信息,和位于所述数据资源池配置信息中的数据信息传输的跳频指示信息;所述时频资源指示信息包括:位于所述控制资源池配置信息中的控制信息传输的时频资源指示信息,和位于所述数据资源池配置信息中的数据信息传输的时频资源指示信息;所述循环前缀长度指示信息包括:位于所述控制资源池配置信息中的控制信息传输的循环前缀长度指示信息,和位于所述数据资源池配置信息中的数据信息传输的循环前缀长度指示信息。
- 一种设备到设备通信中的数据发送方法,包括:从至少一个资源池配置信息中确定一个资源池配置信息;根据确定的所述资源池配置信息生成控制信息;根据确定的所述资源池配置信息,发送所述控制信息并按照所述控制信息的指示发送数据信息。
- 如权利要求7所述的方法,其中,所述至少一个资源池配置信息按照来源区分,包括:预先配置的资源池配置信息、基站指示的资源池配置信息和其它用户设备指示的资源池配置信息中的任意一个或多个。
- 如权利要求8所述的方法,其中,从至少一个资源池配置信息中确定一个资源池配置信息,包括:若用户设备位于网络覆盖范围之外,则将预先配置的资源池配置信息确定为所述资源池配置信息;若用户设备位于网络覆盖范围之内,则将基站指示的资源池配置信息确定为所述资源池配置信息,或者,将其它用户设备转发的资源池配置信息中的任意一个确定为所述资源池配置信息。
- 如权利要求9所述的方法,其中,根据确定的所述资源池配置信息 生成控制信息,包括:获取与确定的所述资源池配置信息对应预设的标识信息,在所述控制信息中的指定比特位携带所述标识信息;或者,获取与确定的所述资源池配置信息对应预设的标识信息,在传输所述控制信息所采用的解调用参考信号序列中携带所述标识信息。
- 如权利要求10所述的方法,其中,若所述资源池配置信息源于小区或网络覆盖范围内的用户设备,则所述标识信息为与小区标识关联的标识;若所述资源池配置信息源于网络覆盖范围外的用户设备,则所述标识信息为预设值。
- 如权利要求7-11任一项所述的方法,其中,所述资源池配置信息中包括:时频资源指示信息,和/或跳频指示信息,和/或循环前缀长度指示信息。
- 如权利要求12所述的方法,其中,所述资源池配置信息由用于控制信息的控制资源池配置信息和用于数据信息的数据资源池配置信息组成;所述跳频指示信息包括:位于所述控制资源池配置信息中的控制信息传输的跳频指示信息,和位于所述数据资源池配置信息中的数据信息传输的跳频指示信息;所述时频资源指示信息包括:位于所述控制资源池配置信息中的控制信息传输的时频资源指示信息,和位于所述数据资源池配置信息中的数据信息传输的时频资源指示信息;所述循环前缀长度指示信息包括:位于所述控制资源池配置信息中的控制信息传输的循环前缀长度指示信息,和位于所述数据资源池配置信息中的数据信息传输的循环前缀长度指示信息。
- 一种用户设备,用于设备到设备通信,包括:检测单元,用于采用本地保存的每个资源池配置信息检测发送端发送的控制信息;确定单元,用于根据所述检测单元检测到的所述控制信息确定所述发送 端所采用的资源池配置信息;接收单元,用于根据所述确定单元确定的所述资源池配置信息以及所述检测单元检测到的所述控制信息接收所述发送端的数据信息。
- 如权利要求14所述的用户设备,其中,所述确定单元具体用于:获取所述控制信息的指定比特位携带的标识信息,将所述标识信息对应的资源池配置信息确定为所述发送端所采用的资源池配置信息;或者,获取传输所述控制信息所采用的解调用参考信号序列中携带的标识信息,将所述标识信息对应的资源池配置确定为所述发送端所采用的资源池配置信息;或者,获取所述控制信息的传输资源的位置,根据预设的传输资源的位置与资源池配置信息的对应关系,将与所述传输资源的位置对应的资源池配置信息确定为所述发送端所采用的资源池配置信息。
- 如权利要求15所述的用户设备,其中,若所述资源池配置信息源于小区或网络覆盖范围内的用户设备,则所述标识信息为与小区标识关联的标识;若所述资源池配置信息源于网络覆盖范围外的用户设备,则所述标识信息为预设值。
- 如权利要求14-16任一项所述的用户设备,其中,本地保存的资源池配置信息按照来源区分,包括:预先配置的资源池配置信息、基站指示的资源池配置信息和其它用户设备指示的资源池配置信息中的任意一个或多个。
- 如权利要求17所述的用户设备,其中,所述资源池配置信息包括:时频资源指示信息,和/或跳频指示信息,和/或循环前缀长度指示信息。
- 如权利要求18所述的用户设备,其中,所述资源池配置信息由用于控制信息的控制资源池配置信息和用于数据信息的数据资源池配置信息组成;所述跳频指示信息包括:位于所述控制资源池配置信息中的控制信息传输的跳频指示信息,和位 于所述数据资源池配置信息中的数据信息传输的跳频指示信息;所述时频资源指示信息包括:位于所述控制资源池配置信息中的控制信息传输的时频资源指示信息,和位于所述数据资源池配置信息中的数据信息传输的时频资源指示信息;所述循环前缀长度指示信息包括:位于所述控制资源池配置信息中的控制信息传输的循环前缀长度指示信息,和位于所述数据资源池配置信息中的数据信息传输的循环前缀长度指示信息。
- 一种用户设备,用于设备到设备通信,包括:确定单元,用于从至少一个资源池配置信息中确定一个资源池配置信息;生成单元,用于根据所述确定单元确定的所述资源池配置信息生成控制信息;发送单元,用于根据所述确定单元确定的所述资源池配置信息,发送所述生成单元生成的所述控制信息并按照所述控制信息的指示发送数据信息。
- 如权利要求20所述的用户设备,其中,所述至少一个资源池配置信息按照来源区分包括:预先配置的资源池配置信息、基站指示的资源池配置信息和其它用户设备指示的资源池配置信息中的任意一个或多个。
- 如权利要求21所述的用户设备,其中,所述确定单元具体用于:若所述用户设备位于网络覆盖范围之外,则将预先配置的资源池配置信息确定为所述资源池配置信息;若所述用户设备位于网络覆盖范围之内,则将基站指示的资源池配置信息确定为所述资源池配置信息,或者,将其它用户设备转发的资源池配置信息中的任意一个确定为所述资源池配置信息。
- 如权利要求22所述的用户设备,其中,所述生成单元具体用于:获取与确定的所述资源池配置信息对应预设的标识信息,在所述控制信息中的指定比特位携带所述标识信息;或者,获取与确定的所述资源池配置信息对应预设的标识信息,在传输所述控 制信息所采用的解调用参考信号序列中携带所述标识信息。
- 如权利要求23所述的用户设备,其中,若所述资源池配置信息源于小区或网络覆盖范围内的用户设备,则所述标识信息为与小区标识关联的标识;若所述资源池配置信息源于网络覆盖范围外的用户设备,则所述标识信息为预设值。
- 如权利要求20-24任一项所述的用户设备,其中,所述资源池配置信息中包括:时频资源指示信息和/或跳频指示信息和/或循环前缀长度指示信息。
- 如权利要求25所述的用户设备,其中,所述资源池配置信息由用于控制信息的控制资源池配置信息和用于数据信息的数据资源池配置信息组成;所述跳频指示信息包括:位于所述控制资源池配置信息中的控制信息传输的跳频指示信息,和位于所述数据资源池配置信息中的数据信息传输的跳频指示信息;所述时频资源指示信息包括:位于所述控制资源池配置信息中的控制信息传输的时频资源指示信息,和位于所述数据资源池配置信息中的数据信息传输的时频资源指示信息;所述循环前缀长度指示信息包括:位于所述控制资源池配置信息中的控制信息传输的循环前缀长度指示信息,和位于所述数据资源池配置信息中的数据信息传输的循环前缀长度指示信息。
- 一种用户设备,用于设备到设备通信,包括:处理器;以及存储器,通过总线接口与所述处理器相连接,并且用于存储所述处理器在执行操作时所使用的程序和数据,当处理器调用并执行所述存储器中所存储的程序和数据时,实现如下的功能模块:检测单元,用于采用本地保存的每个资源池配置信息检测发送端发送的控制信息;确定单元,用于根据所述检测单元检测到的所述控制信息确定所述发送端所采用的资源池配置信息;接收单元,用于根据所述确定单元确定的所述资源池配置信息以及所述检测单元检测到的所述控制信息接收所述发送端的数据信息。
- 一种用户设备,用于设备到设备通信,包括:处理器;以及存储器,通过总线接口与所述处理器相连接,并且用于存储所述处理器在执行操作时所使用的程序和数据,当处理器调用并执行所述存储器中所存储的程序和数据时,实现如下的功能模块:确定单元,用于从至少一个资源池配置信息中确定一个资源池配置信息;生成单元,用于根据所述确定单元确定的所述资源池配置信息生成控制信息;发送单元,用于根据所述确定单元确定的所述资源池配置信息,发送所述生成单元生成的所述控制信息并按照所述控制信息的指示发送数据信息。
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CN108809505B (zh) | 2017-05-05 | 2019-12-24 | 维沃移动通信有限公司 | 下行控制信息的传输方法、终端及网络侧设备 |
CN109219131B (zh) | 2017-07-03 | 2022-06-14 | 华为技术有限公司 | 一种数据的传输方法、终端设备和接入网设备 |
WO2019024069A1 (zh) * | 2017-08-04 | 2019-02-07 | Oppo广东移动通信有限公司 | 设备对设备通信的方法、终端设备和网络设备 |
CN109842501B (zh) * | 2017-11-24 | 2020-09-01 | 电信科学技术研究院 | 一种进行数据传输的方法及设备 |
CN110958586B (zh) * | 2018-09-27 | 2022-04-01 | 大唐移动通信设备有限公司 | 一种资源分配及接收资源分配的方法、设备、装置 |
CN112395086B (zh) * | 2020-11-06 | 2022-03-08 | 北京五八信息技术有限公司 | 一种资源分配方法、装置、电子设备及存储介质 |
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EP3179746B1 (en) | 2020-05-06 |
US20170156134A1 (en) | 2017-06-01 |
CN105338467A (zh) | 2016-02-17 |
JP2017529733A (ja) | 2017-10-05 |
US10327229B2 (en) | 2019-06-18 |
KR20170021341A (ko) | 2017-02-27 |
CN105338467B (zh) | 2019-04-02 |
JP6522109B2 (ja) | 2019-05-29 |
KR102102569B1 (ko) | 2020-04-21 |
EP3179746A4 (en) | 2017-08-16 |
EP3179746A1 (en) | 2017-06-14 |
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