WO2015139287A1 - 检测设备对设备信号的方法、用户设备和基站 - Google Patents
检测设备对设备信号的方法、用户设备和基站 Download PDFInfo
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- WO2015139287A1 WO2015139287A1 PCT/CN2014/073818 CN2014073818W WO2015139287A1 WO 2015139287 A1 WO2015139287 A1 WO 2015139287A1 CN 2014073818 W CN2014073818 W CN 2014073818W WO 2015139287 A1 WO2015139287 A1 WO 2015139287A1
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- user equipment
- message
- base station
- sent
- cell
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- 238000000034 method Methods 0.000 title claims abstract description 152
- 238000013507 mapping Methods 0.000 claims description 190
- 230000011664 signaling Effects 0.000 claims description 160
- 108091006146 Channels Proteins 0.000 claims description 34
- 238000001514 detection method Methods 0.000 claims description 10
- 230000006870 function Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 13
- 238000004891 communication Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 9
- 238000003491 array Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 241000854291 Dianthus carthusianorum Species 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/002—Mutual synchronization
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
- H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/18—Interfaces between hierarchically similar devices between terminal devices
Definitions
- the present invention relates to the field of communications, and more particularly to a method, user equipment and base station for detecting device-to-device signals in the field of communications. Background technique
- D2D communication means that the device directly communicates with the device.
- D2D Proximity Service (D2D ProSe) has become a medium-term evolution of the 3rd Generation Partnership Project (3GPP).
- 3GPP 3rd Generation Partnership Project
- the tube is called "LTE”.
- the research topic of the Rel.12 system in the system, and D2D communication is supported from the Rel.12 system.
- the user equipment receives only various signals such as control signals or data signals transmitted from the base station.
- the user equipment determines the timing of the detection signal by the reference signal transmitted by the base station. Since in D2D communication, factors such as the distance between user equipments need to be considered, the user equipment may detect the D2D signal only at the time determined by the reference signal transmitted by the base station, which may result in failure to detect.
- Embodiments of the present invention provide a method, a user equipment, and a base station for detecting a device-to-device signal, which can improve a success rate of detecting a D2D signal by a user equipment.
- a method for detecting a signal of a device to a device D2D comprising: receiving, by a first user device, a first message; determining, by the first user device, the first user according to the first message The device detects a first timing advance of the D2D signal sent by the second user equipment; the first user equipment determines a reference time according to the received reference signal; the first user equipment according to the first timing advance and the Determining a first moment of detecting the D2D signal; the first user equipment detecting the D2D signal at the first moment.
- the receiving, by the first user equipment, the first message includes: the first user equipment receiving the first message sent by the first base station,
- the first base station is a base station serving the first user equipment, and the first message includes the first timing advance; wherein the reference signal is sent by the first base station.
- the first timing advance is a timing advance of the first user equipment to send uplink data.
- the receiving, by the first user equipment, the first message includes: the first user equipment receiving the first message sent by the first base station,
- the first base station is a base station serving the first user equipment, and the first message includes first mapping information between multiple user equipments and multiple timing advances;
- Determining, by the first user equipment, that the first user equipment detects the first timing advance of the D2D signal sent by the second user equipment the method includes: determining, by the first user equipment, the second user equipment according to the first mapping information The time advance amount corresponding to the second user equipment is used as the first time advance amount; wherein the reference signal is sent by the first base station.
- the receiving, by the first user equipment, the first message, a message, the first message includes a second timing advance of the second user equipment to send a D2D signal.
- the first user equipment determines, according to the first message, that the first user equipment detects the second The first timing advance of the D2D signal sent by the user equipment, where: the first user equipment determines the second timing advance amount as the first timing advance amount; wherein, the reference signal is determined by the first base station
- the first base station is a base station serving the first user equipment.
- the first user equipment determines, according to the first message, that the first user equipment detects the second The first timing advance of the D2D signal sent by the user equipment, including: the first user equipment determining the second timing advance amount as the first timing advance amount; the first user equipment according to the received reference signal And determining, by the first user equipment, the first resource used by the second user equipment to send the first message, where the first user equipment is configured according to multiple resources and multiple cells a second mapping information and the first resource, determining a cell to which the second user equipment belongs; the first user equipment determining a reference signal of a cell to which the second user equipment belongs; the first user equipment according to the Deriving a reference signal of a cell to which the second user equipment belongs, and determining a reference time.
- the first message further includes an identifier
- the first user equipment determines, according to the first message
- the The first user equipment detects the first timing advance of the D2D signal sent by the second user equipment, where: the first user equipment determines the second timing advance amount as the first timing advance amount; Determining, by the user equipment, the reference time according to the received reference signal, the method includes: determining, by the first user equipment, the cell to which the second user equipment belongs according to the identifier; a reference signal of the cell; the first user equipment determines a reference time according to a reference signal of a cell to which the second user equipment belongs.
- the first user equipment determines, according to the first message, that the first user equipment detects the second The first time advance of the D2D signal sent by the user equipment, the method includes: determining, by the first user equipment, the first time according to the second time advance amount and a time increment preset on the first user equipment
- the reference signal is sent by the first base station, and the first base station is a base station serving the first user equipment.
- the first user equipment determines, according to the first message, that the first user equipment detects Before the first time advance of the D2D signal sent by the user equipment
- the method further includes: the first user equipment receiving the second message sent by the first base station, where the first base station is the first user equipment The serving base station, the second message includes a third timing advance determined by the first base station; the first user equipment determines, according to the first message, that the first user equipment detects that the second user equipment sends The first timing advance of the D2D signal, the first user equipment determines the first timing advance according to the second timing advance and the third timing advance; wherein, the reference signal is Transmitted by the first base station.
- the first user equipment determines, according to the first message, that the first user equipment detects Before the first time advance of the D2D signal sent by the user equipment
- the method further includes: the first user equipment receiving the second message sent by the first base station, where the first base station is the first user equipment The serving base station, the second message includes third mapping information between the multiple cells and the multiple timing advances; the first user equipment determines, according to the first message, that the first user equipment detects the second The first timing advance of the D2D signal sent by the user equipment, where the first user equipment determines the first resource used by the second user equipment to send the first message And determining, by the first user equipment, the cell to which the second user equipment belongs according to the second mapping information between the multiple resources and the multiple cells, and the first user equipment according to the Determining, by the third mapping information, a timing advance corresponding to the cell to which the second user equipment belongs; the first user equipment according to the second timing advance and
- the first message further includes: the first user equipment according to the first message Before the first user equipment is configured to detect the first time advance of the D2D signal sent by the second user equipment, the method further includes: the first user equipment receiving the second message sent by the first base station, where the a base station is a base station serving the first user equipment, and the second message includes third mapping information between multiple cells and multiple timing advances; the first user equipment is configured according to the first message, Determining, by the first user equipment, the first time advance of the D2D signal sent by the second user equipment, where: the first user equipment determines, according to the identifier, a cell to which the second user equipment belongs; Determining, by the user equipment, a timing advance corresponding to the cell to which the second user equipment belongs according to the third mapping information; The time advance and cell of the second user device belongs corresponds to a time advance, to determine the first timing advance; wherein the reference signal is transmitted from the first base station.
- the first user equipment receives the first base station And sending, by the first user equipment, the first base station, by using downlink control information signaling, main information block signaling, system information block signaling, D2D synchronization channel signaling, or a radio resource control protocol The second message sent.
- the receiving, by the first user equipment, the first message includes: the first user equipment receiving the first message sent by the first base station
- the first base station is a base station serving the first user equipment, where the first message includes third mapping information between multiple cells and multiple timing advances;
- the first message before the first user equipment detects the first time advance of the D2D signal sent by the second user equipment, the method further includes: the first user equipment receiving the second user equipment, a second message, the first user equipment, according to the first message, determining, by the first user equipment, a first timing advance of the D2D signal sent by the second user equipment, where The first user equipment determines, according to the second message, a cell to which the second user equipment belongs; the first user equipment determines, according to the third mapping information, a cell corresponding to the cell to which the second user equipment belongs The timing advance, the time advance corresponding to the cell to which the second user equipment belongs is determined as the first timing advance; wherein the reference signal is sent by the
- the second message includes an identifier
- the first user equipment is configured according to the second message
- Determining the cell to which the second user equipment belongs includes: determining, by the first user equipment, the cell to which the second user equipment belongs according to the identifier.
- the first user equipment determines, according to the second message, a cell to which the second user equipment belongs
- the first user equipment determines a second resource that is used when the second user equipment sends the second message, and the first user equipment uses second mapping information between multiple resources and multiple cells. And determining, by the second resource, a cell to which the second user equipment belongs.
- the receiving, by the first user equipment, the first message includes: the first user equipment receiving the first a message, the cell to which the third user equipment belongs is the same as the cell to which the second user equipment belongs, the first message includes the first timing advance; and the first user equipment according to the received reference signal,
- the method further includes: the first user equipment receiving the second message sent by the second user equipment; determining, by the first user equipment, the reference time according to the received reference signal, including: Determining, by the first user equipment, the cell to which the second user equipment belongs according to the second message; the first user equipment determining, according to the cell to which the second user equipment belongs, a reference signal sent by the third user equipment The first user equipment determines a reference time according to the reference signal sent by the third user equipment.
- the second message includes an identifier
- the first user equipment is configured according to the second message
- Determining the cell to which the second user equipment belongs includes: determining, by the first user equipment, the cell to which the second user equipment belongs according to the identifier.
- the first user equipment determines, according to the second message, a cell to which the second user equipment belongs
- the first user equipment determines a second resource used by the second user equipment to send the second message, where the first user equipment is based on a plurality of resources and a plurality of cells.
- the second mapping information and the second resource determine a cell to which the second user equipment belongs.
- the receiving, by the first user equipment, the first message includes: the first user equipment receiving the first message sent by the first base station
- the first base station is a base station serving the first user equipment, and the first message includes fourth mapping information between multiple resources and multiple timing advances;
- the first message, determining that the first user equipment detects the first timing advance of the D2D signal sent by the second user equipment includes: the first user equipment determining a third resource used when detecting the D2D signal; Determining, according to the fourth mapping information and the third resource, a time advance amount corresponding to the third resource, and using a time advance amount corresponding to the third resource as the first time advance amount;
- the reference signal is sent by the first base station.
- the receiving, by the first user equipment, the first message sent by the first base station includes: the first user equipment receiving, by the first user equipment, a downlink control information The first message sent by the command, the main information block signaling, the system information block signaling, the D2D synchronization channel signaling, or the radio resource control protocol signaling.
- the third user resource determines, according to the fourth mapping information and the third resource, a time advance amount corresponding to the third resource, and uses a time advance amount corresponding to the third resource as the first resource a timing advance; wherein the reference signal is sent by the third user equipment.
- the receiving, by the first user equipment, the first message includes: the first user equipment receiving the first message sent by the third user equipment
- the cell to which the third user equipment belongs is the same as the cell to which the second user equipment belongs, the first message includes the first timing advance; wherein the reference signal is by the third user equipment Sent.
- the receiving, by the first user equipment, the first message that is sent by the third user equipment the first message sent by information signaling, main block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control protocol signaling.
- a method for detecting a signal of a device to a device D2D comprising: generating, by a second user equipment, a first message; and sending, by the second user equipment, the first message to a first user equipment The first message is used to trigger the first user equipment to determine, according to the first message, that the first user equipment detects a first timing advance of the D2D signal sent by the second user equipment.
- the first message includes a second timing advance that the second user equipment sends the D2D signal, and/or is used to indicate the The identifier of the cell to which the second user equipment belongs.
- a method for detecting a signal of a device to a device D2D includes: the third user device sends a first message to the first user equipment, where the first message is used to trigger the first Determining, by the user equipment, the first time advance quantity of the D2D signal sent by the second user equipment according to the first message, where the third user equipment sends a reference signal to the first user equipment, where The reference signal is used to determine a reference time when the first user equipment detects the D2D signal sent by the second user equipment, where the cell to which the third user equipment belongs is the same as the cell to which the second user equipment belongs.
- the first message includes a first timing advance of the first user equipment to detect the D2D signal.
- the first message includes mapping information between multiple resources and multiple timing advances.
- the third user equipment Transmitting, by the user equipment, the first message, the third user equipment, by using downlink control information signaling, primary information block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control protocol signaling, The first user equipment sends the first message.
- a method for detecting a device to a device D2D signal includes: the first base station sends a first message to the first user equipment, where the first user equipment is a user equipment served by the first base station, and the first message is used to trigger the first user equipment according to the Determining, by the first user equipment, a first timing advance of the D2D signal sent by the second user equipment; the first base station sending a reference signal to the first user equipment, where the reference signal is used to determine The first user equipment detects a reference moment of the D2D signal sent by the second user equipment.
- the first message includes the first timing advance or a timing advance of the first user equipment to send the uplink data.
- the first message includes mapping information, where the mapping information is mapping information between multiple user equipments and multiple timing advances, and Mapping information between cells and multiple timing advances or mapping information between multiple resources and multiple timing advances.
- the first base station is first And sending, by the user equipment, the first message to: the first base station, by using downlink control information signaling, primary information block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control protocol signaling, to the first The user equipment sends the first message.
- a first user equipment includes: a first receiving module, configured to receive a first message, and a first determining module, configured to receive, according to the first receiving module, Determining, by the first message, that the first user equipment detects a first timing advance of the D2D signal sent by the second user equipment; a second receiving module, configured to receive a reference signal; and a second determining module, configured to And determining, by the second reference module, the first time advance quantity determined by the first determining module and the reference time determined by the second determining module, Detecting a first moment of the D2D signal; and detecting, configured to detect the D2D signal at the first moment determined by the third determining module.
- the first receiving module is specifically configured to: receive the first message sent by the first base station, where the first base station is The base station served by the first user equipment, the first message includes the first timing advance; wherein the reference signal received by the second receiving module is sent by the first base station.
- the first timing advance received by the first receiving module is set by the first user The amount of time to prepare for sending upstream data.
- the first receiving module is specifically configured to: receive the first message sent by the first base station, where the first base station is The first user equipment serves the base station, the first message includes the first mapping information between the multiple user equipments and the multiple timing advances; the first determining module is specifically configured to: receive according to the first receiving module Determining, by the first mapping information, a timing advance corresponding to the second user equipment, and using a timing advance corresponding to the second user equipment as the first timing advance; wherein the second receiving module The received reference signal is transmitted by the first base station.
- the first receiving module is specifically configured to: receive the first message that is sent by the second user equipment, where the first message includes The second user equipment transmits a second timing advance of the D2D signal.
- the first determining module is specifically configured to: receive the second received by the first receiving module The timing advance is determined as the first timing advance; wherein the reference signal received by the second receiving module is sent by the first base station, and the first base station is configured to serve the first user equipment Base station.
- the first determining module is specifically configured to: receive the second received by the first receiving module Determining, by the second determining module, the first resource used by the second user equipment to send the first message; a second mapping information between the cells and the first resource, determining a cell to which the second user equipment belongs; determining a reference signal of the cell to which the second user equipment belongs; according to the cell to which the second user equipment belongs The reference signal determines the reference time.
- the first message received by the first receiving module further includes an identifier; the first determining module Specifically, the method is: determining, by the first receiving module, the second timing advance amount as the first timing advance amount; the second determining module is specifically configured to: determine, according to the identifier, the second a cell to which the user equipment belongs; determining a reference signal of the cell to which the second user equipment belongs; determining a reference time according to a reference signal of the cell to which the second user equipment belongs.
- the first determining module is specifically configured to: receive, according to the first receiving module, Determining the first timing advance by the second timing advance and the preset time increment on the first user equipment; wherein the reference signal received by the second receiving module is sent by the first base station
- the first base station is a base station serving the first user equipment.
- the first user equipment further includes: a third receiving module, configured to receive, by the first base station, a second message, the first base station is a base station serving the first user equipment, and the second message includes a third timing advance determined by the first base station; the first determining module is specifically configured to: Determining the first timing advance by the second timing advance received by the first receiving module and the third timing advance received by the third receiving module; wherein, the second receiving module receives The reference signal is transmitted by the first base station.
- a third receiving module configured to receive, by the first base station, a second message, the first base station is a base station serving the first user equipment, and the second message includes a third timing advance determined by the first base station
- the first determining module is specifically configured to: Determining the first timing advance by the second timing advance received by the first receiving module and the third timing advance received by the third receiving module; wherein, the second receiving module receives The reference signal is transmitted by the first base station.
- the first user equipment further includes: a third receiving module, configured to receive, by the first base station, a second message, the first base station is a base station serving the first user equipment, and the second message includes third mapping information between multiple cells and multiple timing advances; For determining: the first resource used by the second user equipment to send the first message; determining the second according to second mapping information between multiple resources and multiple cells and the first resource a cell to which the user equipment belongs; determining, according to the third mapping information received by the third receiving module, a timing advance corresponding to the cell to which the second user equipment belongs; according to the first received by the first receiving module Determining the first timing advance by the second timing advance and the timing advance corresponding to the cell to which the second user equipment belongs; wherein, the second receiving module receives the Test signal is transmitted by the first base station.
- a third receiving module configured to receive, by the first base station, a second message, the first base station is a base station serving the first user equipment, and the second message includes third mapping information between multiple cells and multiple timing advances; For
- the first message that is received by the first receiving module further includes: the first user
- the device further includes: a third receiving module, configured to receive a second message sent by the first base station, where the first base station is a base station serving the first user equipment, and the second message includes multiple cells and multiple a third mapping information between the timing advances;
- the first determining module is specifically configured to: determine, according to the identifier, a cell to which the second user equipment belongs; according to the third received by the third receiving module Mapping information, determining a timing advance corresponding to the cell to which the second user equipment belongs; and determining, according to the second timing advance received by the first receiving module, a time advance corresponding to a cell to which the second user equipment belongs Determining, by the first base station, the reference signal received by the second receiving module is sent by the first base station.
- the third receiving module is specifically configured to: Receiving, by the first base station, the second message that is sent by using downlink control information signaling, primary information block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control protocol signaling.
- the first receiving module is specifically configured to: receive the first message sent by the first base station, where the first base station is The first user equipment of the first user equipment, the first message includes third mapping information between the multiple cells and the multiple timing advances; the first user equipment further includes: a third receiving module, configured to receive the a second message sent by the second user equipment; the first determining module is specifically configured to: determine, according to the second message received by the third receiving module, a cell to which the second user equipment belongs; The third mapping information received by the receiving module determines a time advance amount corresponding to the cell to which the second user equipment belongs, and determines a time advance amount corresponding to the cell to which the second user equipment belongs to the first time advancement.
- the reference signal received by the second receiving module is sent by the first base station.
- the second message received by the third receiving module includes an identifier;
- the module is specifically configured to: determine, according to the identifier, a cell to which the second user equipment belongs; determine, according to the third mapping information received by the first receiving module, a time corresponding to a cell to which the second user equipment belongs The amount of advancement corresponding to the cell to which the second user equipment belongs is determined as the first timing advance amount.
- the first determining module is specifically configured to: determine that the second user equipment sends the a second resource used in the second message; determining, according to the second mapping information and the second resource between the multiple resources and the plurality of cells, the cell to which the second user equipment belongs; receiving according to the first receiving module
- the third mapping information determines a time advance amount corresponding to the cell to which the second user equipment belongs, and determines a time advance amount corresponding to the cell to which the second user equipment belongs to the first time advance amount.
- the first receiving module is specifically configured to: receive the first message that is sent by a third user equipment, where the third user equipment belongs The first user equipment is the same as the cell to which the second user equipment belongs, and the first message includes the first time advance amount; the first user equipment further includes: a third receiving module: configured to receive the a second message sent by the second user equipment; the second determining module is specifically configured to: determine, according to the second message received by the third receiving module, a cell to which the second user equipment belongs; Determining, by the cell to which the user equipment belongs, a reference signal sent by the third user equipment; determining a reference time according to the reference signal sent by the third user equipment.
- the second message that is received by the third receiving module includes an identifier;
- the module is specifically configured to: determine, according to the identifier, a cell to which the second user equipment belongs; determine, according to the cell to which the second user equipment belongs, a reference signal sent by the third user equipment; according to the third user The reference signal sent by the device determines the reference time.
- the second determining module is specifically configured to: determine that the second user equipment sends the a second resource used in the second message; determining, according to the second mapping information and the second resource between the multiple resources and the plurality of cells, the cell to which the second user equipment belongs; according to the second user equipment a cell, determining a reference signal sent by the third user equipment; determining a reference time according to the reference signal sent by the third user equipment.
- the first receiving module is specifically configured to: receive the first message sent by the first base station, where the first base station is The base station of the first user equipment service, the first message includes fourth mapping information between multiple resources and multiple timing advances; the first determining module is specifically configured to: determine when detecting the D2D signal a third resource used; determining, according to the fourth mapping information and the third resource that are received by the first receiving module, a timing advance corresponding to the third resource, and using a timing advance corresponding to the third resource as The first timing advance; wherein the reference signal received by the second receiving module is sent by the first base station.
- the first receiving module is specifically configured to: receive, by the first base station, downlink control information signaling, main information block signaling, system information block signaling, and D2D synchronization.
- the first message sent by channel signaling or radio resource control protocol signaling.
- the first receiving module is specifically configured to: receive the first message sent by a third user equipment, where the third user equipment is The cell to which the cell belongs is the same as the cell to which the second user equipment belongs, and the first message includes multiple The fourth mapping information between the resources and the multiple timing advances; the first determining module is specifically configured to: determine a third resource used when detecting the D2D signal; according to the received by the first receiving module Determining, according to the fourth mapping information and the third resource, a timing advance corresponding to the third resource, and using a timing advance corresponding to the third resource as the first timing advance; wherein, the second receiving module The received reference signal is transmitted by the third user equipment.
- the first receiving module is specifically configured to: receive a first message sent by a third user equipment, where the third user equipment belongs The cell is the same as the cell to which the second user equipment belongs, and the first message includes the first timing advance; wherein the reference signal received by the second receiving module is sent by the third user equipment of.
- the first receiving module is specifically configured to: receive, by the third user equipment, downlink control information signaling, main information block signaling, system information block signaling, and D2D The first message sent by the synchronization channel signaling or the radio resource control protocol signaling.
- a second user equipment includes: a generating module, configured to generate a first message, and a sending module, configured to send, to the first user equipment, the generated by the generating module
- the first message is used to trigger the first user equipment to determine, according to the first message, that the first user equipment detects a first timing advance of the D2D signal sent by the second user equipment.
- the first message generated by the generating module includes a second timing advance of the second user equipment to send the D2D signal and/or Or used to indicate the identity of the cell to which the second user equipment belongs.
- a third user equipment includes: a first sending module, configured to send a first message to the first user equipment, where the first message is used to trigger the first Determining, by the user equipment, the first time advance quantity of the D2D signal sent by the second user equipment, according to the first message, the second sending module, configured to send a reference signal to the first user equipment, The reference signal is used to determine a reference time when the first user equipment detects a D2D signal sent by the second user equipment, where the cell to which the third user equipment belongs is the same as the cell to which the second user equipment belongs.
- the first sending The first message sent by the module includes a first timing advance of the first user equipment to detect the D2D signal.
- the first message sent by the first sending module includes mapping information between multiple resources and multiple timing advances.
- the first sending module is specifically used The first message is sent to the first user equipment by using downlink control information signaling, main information block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control protocol signaling.
- a first base station includes: a first sending module, configured to send a first message to a first user equipment, where the first user equipment is a user served by the first base station The first message is used to trigger the first user equipment to determine, according to the first message, that the first user equipment detects a first timing advance of a D2D signal sent by the second user equipment; And sending, by the first user equipment, a reference signal, where the reference signal is used to determine a reference moment of the first user equipment to detect a D2D signal sent by the second user equipment.
- the first message sent by the first sending module includes the first timing advance or a time when the first user equipment sends uplink data. Advance quantity.
- the first message sent by the first sending module includes mapping information, where the mapping information is multiple user equipments and multiple time advances. Mapping information between quantities, mapping information between a plurality of cells and a plurality of timing advances, or mapping information between a plurality of resources and a plurality of timing advances.
- the first sending module is specifically used The first message is sent to the first user equipment by using downlink control information signaling, main information block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control protocol signaling.
- the method for detecting a device signal, the user equipment, and the base station of the device in the embodiment of the present invention improves the success rate of detecting the D2D signal by the user equipment.
- Figure 1 is a schematic flow diagram showing a method of detecting a device-to-device signal in accordance with one embodiment of the present invention.
- FIG. 2 shows a schematic flow chart of a method for detecting device-to-device signals in accordance with one embodiment of the present invention.
- FIG. 3 is a schematic flow chart of a method for detecting device-to-device signals in accordance with another embodiment of the present invention.
- FIG. 4 is a schematic flow chart of a method for detecting a device-to-device signal in accordance with another embodiment of the present invention.
- Figure 5 shows a schematic block diagram of a first user equipment in accordance with one embodiment of the present invention.
- Figure 6 shows a schematic block diagram of a second user equipment in accordance with one embodiment of the present invention.
- FIG. 7 shows a schematic block diagram of a third user equipment according to an embodiment of the present invention.
- FIG. 8 shows a schematic block diagram of a first base station according to an embodiment of the present invention.
- FIG. 9 shows a schematic block diagram of a first user equipment in accordance with another embodiment of the present invention.
- FIG. 10 shows a schematic block diagram of a second user equipment in accordance with another embodiment of the present invention.
- FIG. 11 is a schematic block diagram of a third user equipment according to another embodiment of the present invention.
- FIG. 12 is a schematic block diagram showing a first base station according to another embodiment of the present invention.
- a user equipment may be referred to as a terminal, a mobile station (Mobile Station, referred to as "MS"), or a mobile user equipment ( Mobile Terminal), etc.
- the user equipment may be a mobile phone (or “cellular” phone) or a computer with a mobile user device, etc., for example, the user device may also be portable, pocket, handheld, computer built in or car Mobile device.
- the base station may be an evolved Node B (called “eNB or e-NodeB” in LTE), or may be a base station (Node B) in WCDMA. It may be a base station in the GSM or CDMA (Base Transceiver Station, the cartridge is called “BTS”), or may be a cluster head of a user cluster in the D2D communication, which is not limited in the embodiment of the present invention.
- the method 100 includes:
- the first user equipment receives the first message.
- the first user equipment determines, according to the first message, a first time advance quantity of the D2D signal sent by the first user equipment to detect the second user equipment.
- the first user equipment determines a reference time according to the received reference signal.
- the first user equipment determines, according to the first timing advance and the reference moment, a first moment to detect the D2D signal.
- the first user equipment detects the D2D signal at the first moment.
- the first user equipment can determine the time of detecting the D2D signal by receiving the timing advance and the reference time, so that when the first user equipment detects the D2D signal at the moment, It can improve the success rate of detecting D2D signals.
- the first message received by the first user equipment may be from a base station serving the first user equipment, a second user equipment transmitting a D2D signal, or a third user equipment belonging to a cell in the same manner as the second user equipment.
- the first user equipment determines, according to the first message, a first timing advance for detecting the D2D signal sent by the second user equipment, where the first message may contain multiple types of content.
- the first message may include a time advance amount of the D2D signal sent by the first user equipment received by the second user equipment, a time advance quantity of the first user equipment sending the uplink data, or a time when the second user equipment sends the D2D signal. Advance quantity.
- the first message may further include mapping information between the plurality of user equipments and the plurality of timing advances, mapping information between the plurality of cells and the plurality of timing advances, or between the plurality of resources and the plurality of timing advances Mapping information, etc.
- the first message may also include some other reference information for determining the detection of the D2D signal, for example, for indicating the identity of the cell, etc., which is not limited by the embodiment of the present invention.
- the second message from the base station or the second user equipment may also be referred to, which is not limited in this embodiment of the present invention.
- the reference signal received by the first user equipment is used to determine the detection of the D2D signal. Reference time.
- the reference signal may be from a base station serving the first user equipment or a third user equipment belonging to the same cell as the second user equipment.
- the first time of detecting the D2D signal sent by the second user equipment may be determined according to the first time advance quantity and the reference time, and start at the first time The D2D signal is detected.
- the explanation is mainly on how to determine the first time advance amount and how to determine the reference time.
- the first user equipment and the second user equipment are two user equipments for performing D2D communication, wherein the first user equipment is a user equipment that detects a D2D signal, and the second user equipment is a D2D signal that transmits a D2D signal.
- the third user equipment is a user equipment that belongs to the same cell as the first user equipment.
- the first base station is a base station serving the first user equipment.
- the first time advance is the amount of time advance for the first user equipment to detect the D2D signal.
- the reference time is the reference time at which the first user equipment detects the D2D signal.
- the first time is the time at which the first user equipment starts detecting the D2D signal.
- the first user equipment receives the first message, where the first user equipment receives the first message sent by the first base station, where the first base station is a base station serving the first user equipment, and the first message includes the first message.
- the first user equipment receives the first message sent by the first base station, where the first message includes the first time advance amount.
- the first timing advance may be a timing advance of the first user equipment determined by the first base station to detect the D2D signal sent by the second user equipment.
- the first base station may refer to the distance information between the first user equipment and the first base station and/or the second user equipment and the first base station when determining that the first user equipment detects the timing advance of the D2D signal sent by the second user equipment.
- the distance information between the user equipment and the user equipment served by the first base station is the farthest distance information of the user equipment from the first base station; and the time advance amount information of the uplink data sent by the first user equipment and/or the second user equipment may also be referred to.
- the first user equipment also needs to receive a reference signal sent by the first base station, and the reference signal determines a reference time for detecting the D2D signal.
- the first timing advance may be a timing advance of the first user equipment to send uplink data.
- the timing advance of the first user equipment for transmitting uplink data is a timing advance used when the first user equipment sends uplink data to the first base station.
- the first user equipment adopts the first user equipment to the first The amount of time advancement used by a base station to transmit uplink data is used to detect that the second user equipment sends
- the timing advance of the D2D signal may cause the D2D signal sent by the second user equipment to fall into the receiving time window of the first user equipment, so that the complete D2D signal sent by the second user equipment may be acquired, and then the second user equipment is detected.
- the first user equipment also needs to receive a reference signal sent by the first base station, and the reference signal determines a reference moment for detecting the D2D signal.
- the reference moment may be a receiving moment at which the first user equipment receives the signal transmitted by the first base station, and is used to provide a time reference for receiving the D2D signal.
- the first user equipment receives the first message, where: the first user equipment receives the first message sent by the first base station, where the first base station is a base station serving the first user equipment, and the first message includes multiple users. Determining, by the first user equipment, the first time advance quantity of the D2D signal sent by the second user equipment, according to the first message, the first user equipment: The device determines, according to the first mapping information, a timing advance corresponding to the second user equipment, and uses a timing advance corresponding to the second user equipment as the first timing advance; wherein the reference signal is sent by the first base station.
- the first user equipment receives the first message sent by the first base station, where the first message includes multiple user equipments and multiple The first mapping information between the timing advances.
- the first mapping information may be mapping information between a plurality of user equipments in a cell to which the first user equipment belongs and a timing advance corresponding to each user equipment.
- the first base station determines the timing advance corresponding to each user equipment in the first mapping information, the distance information between the first user equipment and the first base station and/or the distance between the multiple user equipments and the first base station may be referred to.
- the information, or the user equipment served by the first base station, the farthest distance information of the user equipment from the first base station; and the time advance amount information of the uplink data sent by the first user equipment and/or the uplink data sent by multiple user equipments The time advance amount information, or the user equipment that is served by the first base station, the maximum time advance amount information of the time advance amount of the uplink data sent by the user equipment.
- the user equipment in the first mapping information may be represented by an identifier indicating the user equipment.
- the first user equipment may determine the timing advance corresponding to the second user equipment by using the identifier of the second user equipment, and use the timing advance corresponding to the second user equipment as the first timing advance.
- the first user equipment further needs to receive a reference signal sent by the first base station, and the reference signal determines a reference moment for detecting the D2D signal.
- the user equipment in the first mapping information may also pass other The information is represented by the embodiment of the present invention.
- the first user equipment receives the first message, where the first user equipment receives the first message sent by the second user equipment, where the first message includes a second timing advance of the second user equipment to send the D2D signal.
- the first user equipment may use the second timing advance as the first timing advance, or determine the first timing advance by referring to the second timing advance, which is not limited in the embodiment of the present invention.
- the first user equipment determines, according to the first message, that the first user equipment detects the first timing advance of the D2D signal sent by the second user equipment, where: the first user equipment determines the second time advance quantity as the first a timing advance; wherein the reference signal is sent by the first base station, and the first base station is a base station serving the first user equipment.
- the first user equipment may determine the timing advance of the D2D signal sent by the second user equipment as the first timing advance.
- the first user equipment further needs to receive a reference signal sent by the first base station, and the reference signal determines a reference moment for detecting the D2D signal.
- the first user equipment determines, according to the first message, that the first user equipment detects the first timing advance of the D2D signal sent by the second user equipment, where: the first user equipment determines the second time advance quantity as the first
- the first user equipment determines the reference time according to the received reference signal, and includes: the first user equipment determines a first resource used by the second user equipment to send the first message; the first user equipment is based on multiple resources The second mapping information and the first resource between the cells determine the cell to which the second user equipment belongs; the first user equipment determines a reference signal of the cell to which the second user equipment belongs; the first user equipment is according to the second user equipment The reference signal of the cell determines the reference time.
- the reference signal corresponding to the cell to which the second user equipment belongs should be determined, and the reference time for detecting the D2D signal is determined by the reference signal corresponding to the cell to which the second user equipment belongs.
- the first user equipment may obtain second mapping information between multiple resources and multiple cells from the base station, where the second mapping information reflects the allocation of resources by the system.
- the first user equipment can learn, by using the second mapping information, time resources, frequency resources, and resources allocated by the system for each cell. Information such as codeword resources.
- the first user equipment may also obtain the second mapping information by using other methods, which is not limited by the embodiment of the present invention.
- the first user equipment determines the first resource used by the second user equipment to send the first message. According to the second mapping information and the first resource, the cell to which the second user equipment belongs can be determined. Further, the first user equipment may acquire a reference signal of the cell to which the second user equipment belongs, and determine a reference time according to the reference signal.
- an identifier may be added to the first message, where the identifier is used to indicate the cell to which the second user equipment belongs.
- the first user equipment determines, according to the first message, that the first user equipment detects the first timing advance of the D2D signal sent by the second user equipment, where: the first user equipment determines the second time advance quantity as the first time
- the first user equipment determines the reference time according to the received reference signal, and includes: determining, by the first user equipment, the cell to which the second user equipment belongs according to the identifier; and determining, by the first user equipment, the reference signal of the cell to which the second user equipment belongs
- the first user equipment determines the reference time according to the reference signal of the cell to which the second user equipment belongs.
- the first user equipment determines, according to the first message, that the first user equipment detects the first timing advance of the D2D signal sent by the second user equipment, and the method includes: the first user equipment according to the second timing advance and the first user The preset time increment is determined on the device, and the first time advance is determined.
- the reference signal is sent by the first base station, and the first base station is a base station serving the first user equipment.
- the reference time used is still the reference time of the cell to which the first user equipment belongs, that is, the reference signal is sent by the first base station.
- a time increment may be added to the second time advance amount when calculating the first time advance amount.
- the time increment may be preset on the first user equipment, and the selection may be a deviation value corresponding to a cell with the largest time deviation from the cell to which the first user equipment belongs, or a value larger than the deviation value,
- the embodiment of the invention is not limited thereto.
- the first user equipment acquires a time advancement from the first base station in addition to receiving the second time advance amount from the second user equipment. the amount.
- the time advance determined by the first base station may refer to a time offset between a cell to which the first user equipment belongs and a cell to which the second user equipment belongs. Determining, by the first user equipment, the first time according to two timing advances respectively sent by the second user equipment and the first base station The amount of advance.
- the first user equipment further needs to receive a reference signal sent by the first base station, and the reference signal determines a reference moment for detecting the D2D signal.
- the method 100 further includes: the first user equipment receives the second message sent by the first base station, where the first base station is a base station serving the first user equipment, and the second message includes the third determined by the first base station.
- the first user equipment determines, according to the first message, that the first user equipment detects the first timing advance of the D2D signal sent by the second user equipment, and includes: the first user equipment according to the second time advance amount and the third time The advance amount determines a first time advance amount; wherein the reference signal is transmitted by the first base station.
- the timing advance is obtained from the first base station, and may be implemented by other implementations.
- the third mapping information is acquired from the first base station, and the applicable timing advance is determined based on the third mapping information.
- the third mapping information may be mapping information between a plurality of cells and a plurality of timing advances.
- the first user equipment may determine, according to the first resource used by the second user equipment to send the first message, the cell to which the second user equipment belongs. Thereby, the timing advance corresponding to the cell to which the second user equipment belongs is found in the third mapping information.
- the manner in which the user equipment belongs to the cell to which the user equipment belongs is determined according to the foregoing description.
- the first user equipment also needs to receive a reference signal sent by the first base station, and the reference signal determines a reference moment for detecting the D2D signal.
- the method 100 further includes: the first user equipment receives the second message sent by the first base station, where the first base station is a base station serving the first user equipment, and the second message includes multiple cells and multiple times Determining, by the first user equipment, the first time advance of the D2D signal sent by the second user equipment, according to the first message, the first user equipment determining the second user The first resource used by the device to send the first message; the first user equipment determines, according to the second mapping information and the first resource between the multiple resources and the multiple cells, the cell to which the second user equipment belongs; Determining, by the third mapping information, a timing advance corresponding to the cell to which the second user equipment belongs; the first user equipment determining the first timing advance according to the second timing advance and the timing advance corresponding to the cell to which the second user equipment belongs; Wherein, the reference signal is sent by the first base station.
- the timing advance is obtained from the first base station, and may be implemented by other implementations.
- the third mapping information is acquired from the first base station, and the applicable timing advance is determined according to the third mapping information.
- the third mapping information may be mapping information between a plurality of cells and a plurality of timing advances.
- the first user equipment determines the cell to which the second user equipment belongs by using the identifier carried by the second user equipment in the first message. Thereby finding a small corresponding to the second user equipment in the third mapping information The amount of time advancement corresponding to the zone.
- the manner of determining the cell to which the second user equipment belongs according to the identifier is similar to the foregoing description.
- the first user equipment further needs to receive a reference signal sent by the first base station, and the reference signal determines a reference moment for detecting the D2D signal.
- the method 100 further includes: the first user equipment receives the second message sent by the first base station, where the first base station is a base station serving the first user equipment, and the second message includes multiple cells and multiple times Determining, by the first user equipment, the first timing advance of the D2D signal sent by the second user equipment, according to the first message, the first user equipment determining, according to the identifier, the first user equipment a cell to which the second user equipment belongs; the first user equipment determines, according to the third mapping information, a timing advance corresponding to the cell to which the second user equipment belongs; the first user equipment according to the second timing advance and the cell to which the second user equipment belongs Corresponding time advance quantity, determining a first time advance quantity; wherein, the reference signal is sent by the first base station.
- the first user equipment receives the first message sent by the first base station, where the first base station is a base station serving the first user equipment, and the first message includes a third between the multiple cells and the multiple timing advances.
- Mapping information before the first user equipment determines, according to the first message, that the first user equipment detects the first timing advance of the D2D signal sent by the second user equipment, the method further includes: receiving, by the first user equipment, the second user equipment The second user equipment determines, according to the first message, that the first user equipment detects the first timing advance of the D2D signal sent by the second user equipment, where: the first user equipment determines the second user equipment according to the second message.
- the first user equipment determines, according to the third mapping information, a time advance amount corresponding to the cell to which the second user equipment belongs, and determines a time advance amount corresponding to the cell to which the second user equipment belongs, as the first time advance amount;
- the reference signal is transmitted by the first base station.
- the first user equipment determines a reference time for detecting the D2D signal based on the reference signal.
- the time advance determined by the base station may refer to distance information between the first user equipment and the second user equipment and/or between the cell to which the first user equipment belongs and the cell to which the second user equipment belongs. Time deviation and so on.
- the cell to which the second user equipment belongs may be determined according to the identifier by referring to the foregoing description.
- the second message includes the identifier.
- the first user equipment determines, according to the second message, the cell to which the second user equipment belongs, and the method includes: determining, by the first user equipment, the cell to which the second user equipment belongs according to the identifier.
- the cell to which the second user equipment belongs may be determined according to the first resource by referring to the foregoing description.
- the determining, by the first user equipment, the cell to which the second user equipment belongs according to the second message the method includes: determining, by the first user equipment, the second resource used by the second user equipment to send the second message The first user equipment determines, according to the second mapping information and the second resource between the multiple resources and the multiple cells, the cell to which the second user equipment belongs.
- the first user equipment receives the first message, where: the first user equipment receives the first message sent by the third user equipment, where the cell to which the third user equipment belongs is the same as the cell to which the second user equipment belongs, the first The message includes a first time advance; before the first user equipment determines the reference time according to the received reference signal, the method 100 further includes: the first user equipment receives the second message sent by the second user equipment; Determining the reference time, the first user equipment determining, according to the second message, the cell to which the second user equipment belongs; the first user equipment determining the reference signal sent by the third user equipment according to the cell to which the second user equipment belongs The first user equipment determines the reference time according to the reference signal sent by the third user equipment.
- the first user equipment cannot receive the message sent from the base station serving the second user equipment, because the cell to which the first user equipment belongs is different from the cell to which the second user equipment belongs. Therefore, in this embodiment, the timing advance determined by the base station serving the second user equipment and the third user equipment may be forwarded by the third user equipment.
- the reference signal generated by the base station serving the second user equipment and the third user equipment is also forwarded by the third user equipment, so that the first user equipment determines the reference time for detecting the D2D signal based on the reference signal.
- the time advance amount determined by the base station serving the second user equipment and the third user equipment may refer to the time advance amount information of the uplink data sent by the second user equipment, or the base station serving the second user equipment and the third user equipment. Among the user equipments served, the maximum time advance amount information of the time advance amount of the uplink data sent by the user equipment, and the like.
- the cell to which the second user equipment belongs may be determined according to the identifier by referring to the foregoing description.
- the second message includes the identifier.
- the determining, by the first user equipment, the cell to which the second user equipment belongs according to the second message, the method includes: determining, by the first user equipment, the cell to which the second user equipment belongs according to the identifier.
- the cell to which the second user equipment belongs may be determined according to the second resource with reference to the foregoing description.
- the determining, by the first user equipment, the cell to which the second user equipment belongs according to the second message includes: determining, by the first user equipment, a second resource used by the second user equipment to send the second message; The second mapping information and the second resource between the resource and the multiple cells determine a cell to which the second user equipment belongs.
- the first user equipment receives the first message, where: the first user equipment receives the first message sent by the first base station, where the first base station is a base station serving the first user equipment, the first The message includes the fourth mapping information between the multiple resources and the multiple timing advances.
- the first user equipment determines, according to the first message, the first timing advance of the first user equipment to detect the D2D signal sent by the second user equipment, including The first user equipment determines a third resource used when detecting the D2D signal; the first user equipment determines, according to the fourth mapping information and the third resource, a timing advance corresponding to the third resource, and a timing advance corresponding to the third resource As a first timing advance; wherein the reference signal is sent by the first base station.
- the first base station may determine, according to the distance information between the first user equipment and other user equipments, and/or the time deviation between the cell to which the first user equipment belongs and the cell to which the other user equipment belongs, Multiple timing advances for the cell.
- the first user equipment can determine the cell to which the second user equipment belongs by detecting the resource used when the D2D signal sent by the second user equipment is detected.
- the plurality of resources and the plurality of timing advances can form the fourth mapping information.
- the third resource used when the second user equipment transmits the D2D signal finds its corresponding timing advance in the fourth mapping information as the first timing advance.
- the first user equipment further needs to receive a reference signal sent by the first base station, and the reference signal determines a reference moment for detecting the D2D signal.
- the first user equipment receives the first message, where: the first user equipment receives the first message sent by the third user equipment, where the cell to which the third user equipment belongs is the same as the cell to which the second user equipment belongs, the first The message includes the fourth mapping information between the multiple resources and the multiple timing advances.
- the first user equipment determines, according to the first message, the first timing advance of the first user equipment to detect the D2D signal sent by the second user equipment, including The first user equipment determines a third resource used when detecting the D2D signal; the first user equipment determines, according to the fourth mapping information and the third resource, a time advance amount corresponding to the third resource, and a time advance amount corresponding to the third resource As a first timing advance; wherein the reference signal is sent by the third user equipment.
- the difference between this embodiment and the previous embodiment is that the first message is sent by the third user equipment that belongs to the cell that belongs to the second user equipment.
- the first message may be determined by a base station serving the second user equipment and the third user equipment.
- the base station serving the second user equipment and the third user equipment may refer to the time advance information of the uplink data sent by the second user equipment, or the user equipment served by the base station served by the second user equipment and the third user equipment, the user The maximum amount of time advancement information among the time advances in which the device transmits uplink data.
- the plurality of resources used in detecting the D2D signal and the plurality of timing advances can form the fourth mapping information.
- the resource used in the D2D signal is sent by the second user equipment, and the corresponding timing advance is found in the fourth mapping information as the first timing advance.
- the first user equipment further receives the reference signal from the third user equipment, Used to determine the reference moment for detecting the D2D signal.
- the first user equipment receives the first message, where: the first user equipment receives the first message sent by the third user equipment, where the cell to which the third user equipment belongs is the same as the cell to which the second user equipment belongs, the first The message includes a first time advance; wherein the reference signal is sent by the third user equipment.
- the third user equipment is also a forwarding device, and the first timing advance included in the first message forwarded is determined by the base station serving the second user equipment and the third user equipment.
- the reference signal it forwards also comes from the base station serving the second user equipment and the third user equipment.
- the second user equipment may be used to send the time advance information of the uplink data, or the base station serving the second user equipment and the third user equipment.
- the maximum time advance amount information of the time advance amount of the uplink data sent by the user equipment and the like.
- the first user equipment also needs to receive a reference signal from the third user equipment for determining a reference moment for detecting the D2D signal.
- the first base station mentioned in the text sends the first message or the second message, and the first base station may pass the downlink control information ("Downlink Control Information", the tube is called “DCI”) signaling, and the main information block ( Master Information Block”, the tube is called “MIB” signaling, system information block ("System Information Block”, the tube is called “SIB” M command, D2D synchronization channel ("D2D Synchronizing Channel", the tube is called “D2DSCH"
- the third user equipment mentioned in the text sends the first message, and the third user equipment can also pass the downlink.
- the third user equipment mentioned in the text is sent by the third user equipment.
- the control information signaling, the main information block signaling, the system information block signaling, the D2D synchronization channel signaling, or the radio resource control protocol signaling are delivered.
- the first user equipment can determine the time of detecting the D2D signal by receiving the timing advance and the reference time, so that when the first user equipment detects the D2D signal at the moment, It can improve the success rate of detecting D2D signals.
- a method 100 for detecting a D2D signal is described in detail from the perspective of a first user equipment for detecting a D2D signal, which will be respectively from the perspective of the second user equipment in conjunction with FIGS. 2 to 4, respectively.
- the angle of the third user equipment and the angle of the first base station describe a method for detecting a D2D signal in accordance with an embodiment of the present invention.
- a method 200 for detecting a D2D signal may be performed by a second user equipment, the method 200 comprising: S210.
- the second user equipment generates a first message.
- the second user equipment sends a first message to the first user equipment, where the first message is used to trigger the first user equipment to determine, according to the first message, that the first user equipment detects the first time advance of the D2D signal sent by the second user equipment. the amount.
- the second user equipment may trigger the first user equipment to determine, according to the first message, the detection of the D2D signal sent by the second user equipment by generating and transmitting the first message.
- the first time advance amount, and thus the first moment of detecting the D2D signal, can improve the success rate of detecting the D2D signal.
- the first message includes a timing advance of the second user equipment to transmit the D2D signal and/or an identifier used to indicate the cell to which the second user equipment belongs.
- the first user equipment may use the time advance of the second user equipment to send the D2D signal as the first timing advance.
- the first user equipment further needs to receive a reference signal sent by the first base station, and the reference signal determines a reference moment for detecting the D2D signal. Based on the first timing advance and the reference moment, the first user equipment may determine a first moment to detect the D2D signal transmitted by the second user equipment.
- the first message may include an identifier for indicating a cell to which the second user equipment belongs, in addition to the timing advance of the second user equipment to send the D2D signal.
- the first user equipment needs to determine the cell to which the second user equipment belongs, and further determines the amount of time advancement used. Using the identity, the cell to which the second user equipment belongs can be more conveniently determined.
- the first message may also include only one identifier, which is used to determine the cell to which the second user equipment belongs, which is not limited in this embodiment of the present invention.
- the second user equipment may trigger the first user equipment to determine, according to the first message, the detection of the D2D signal sent by the second user equipment by generating and transmitting the first message.
- the first time advance amount, and thus the first moment of detecting the D2D signal, can improve the success rate of detecting the D2D signal.
- a method 300 for detecting a D2D signal may be performed by a third user equipment, the method 300 comprising:
- the third user equipment sends a first message to the first user equipment, where the first message is used to trigger the first user equipment to determine, according to the first message, that the first user equipment detects the first time advance of the D2D signal sent by the second user equipment. the amount;
- the third user equipment sends a reference signal to the first user equipment, where the reference signal is used to determine
- the first user equipment detects a reference moment of the D2D signal sent by the second user equipment, where the cell to which the third user equipment belongs is the same as the cell to which the second user equipment belongs.
- the third user equipment by sending the first message and the reference signal to the first user equipment, may enable the first user equipment to determine the detection according to the first message and the reference signal.
- the success rate of detecting the D2D signal can be improved.
- the first user equipment cannot receive the message sent from the base station serving the second user equipment. Therefore, the first message containing the timing advance determined by the base station serving the second user equipment and the third user equipment can be forwarded by the third user equipment.
- the reference signals transmitted by the base stations serving the second user equipment and the third user equipment may also be forwarded by the third user equipment.
- the first message includes a first amount of time advancement by the first user equipment to detect the D2D signal.
- the first user equipment determines the first time to detect the D2D signal according to the first timing advance and the reference time.
- the first message includes mapping information between the multiple resources and the multiple timing advances
- the first user equipment may determine, according to the mapping information, a first timing advance for detecting the D2D signal, and further according to the first time.
- the advance time and the reference time determine the first time at which the D2D signal is detected.
- the third user equipment when the third user equipment sends the first message to the first user equipment, the downlink control information signaling, the main information block signaling, the system information block signaling, the D2D synchronization channel signaling, or the radio resource control protocol signaling may be adopted. Issued.
- the third user equipment may trigger the first user equipment to determine the detection according to the first message and the reference signal by sending the first message and the reference signal to the first user equipment.
- the success rate of detecting the D2D signal can be improved.
- a method 400 for detecting a D2D signal may be performed by a first base station, the method 400 comprising:
- the first base station sends a first message to the first user equipment, where the first user equipment is a user equipment that is served by the first base station, and the first message is used to trigger the first user equipment to determine, according to the first message, that the first user equipment detects a first timing advance of the D2D signal transmitted by the second user equipment;
- the first base station sends a reference signal to the first user equipment, where the reference signal is used to determine the first
- the user equipment detects a reference moment of the D2D signal sent by the second user equipment.
- the first base station may trigger the first user equipment to determine the detection D2D according to the first message and the reference signal by sending the first message and the reference signal to the first user equipment.
- the success rate of detecting the D2D signal can be improved.
- the first message includes a first timing advance or a timing advance of the first user equipment to transmit the uplink data.
- the first user equipment determines the first moment to detect the D2D signal based on the first timing advance and the reference signal.
- the first message includes the time advance amount of the uplink data sent by the first user equipment
- the time advance quantity of the uplink data sent by the first user equipment is used as the first advance quantity, and then the D2D is determined according to the first time advance quantity and the reference signal. The first moment of the signal.
- the first message includes mapping information, where the mapping information is mapping information between multiple user equipments and multiple timing advances, mapping information between multiple cells and multiple timing advances, or Mapping information between resources and multiple timing advances.
- the first user equipment may determine, according to the mapping information, a first timing advance for detecting the D2D signal, and further determine a first timing of detecting the D2D signal according to the first timing advance and the reference timing.
- the first base station when the first base station sends the first message to the first user equipment, the first base station may perform downlink control information signaling, main information block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control protocol signaling. hair.
- the first base station may trigger the first user equipment to determine the detection D2D according to the first message and the reference signal by sending the first message and the reference signal to the first user equipment.
- the success rate of detecting the D2D signal can be improved.
- 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.
- FIG. 5 shows a schematic block diagram of a first user equipment 500 in accordance with an embodiment of the present invention. As shown
- the first user equipment 500 includes: The first receiving module 510 is configured to receive the first message.
- the first determining module 520 is configured to determine, according to the first message received by the first receiving module 510, a first time advance quantity of the D2D signal sent by the first user equipment by the second user equipment;
- a second receiving module 530 configured to receive a reference signal
- the second determining module 540 is configured to determine a reference time according to the received reference signal
- the third determining module 550 is configured to use the first time advance amount determined by the first determining module 520 and the reference time determined by the second determining module 540. Determining a first time at which the D2D signal is detected;
- the detecting module 560 is configured to detect the D2D signal at the first moment determined by the third determining module 550. Therefore, the first user equipment provided by the embodiment of the present invention can determine the time at which the D2D signal is detected by receiving the timing advance and the reference time, so that when the first user equipment detects the D2D signal at the moment, the success of detecting the D2D signal can be improved. rate.
- the first receiving module 510 is specifically configured to:
- the reference signal received by the second receiving module 530 is sent by the first base station.
- the first timing advance received by the first receiving module 510 is a timing advance of the uplink data sent by the first user equipment.
- the first receiving module 510 is specifically configured to:
- the first determining module 520 Receiving a first message sent by the first base station, where the first base station is a base station serving the first user equipment, where the first message includes first mapping information between the multiple user equipments and the multiple timing advances; the first determining module 520 Specifically used for:
- the reference signal received by the second receiving module 530 is sent by the first base station.
- the first receiving module 510 is specifically configured to:
- the first determining module 520 is specifically configured to:
- the second time advance received by the first receiving module 510 is determined as a first time advance; wherein the reference signal received by the second receiving module 530 is sent by the first base station, and the first base station is used to serve the first user equipment.
- Base station is specifically configured to:
- the second timing advance received by the first receiving module 510 is determined as a first timing advance; the second determining module 540 is specifically configured to:
- the first message received by the first receiving module 510 further includes an identifier
- the first determining module 520 is specifically configured to:
- the second timing advance received by the first receiving module 510 is determined as a first timing advance; the second determining module 540 is specifically configured to:
- the first determining module 520 is specifically configured to:
- the reference signal received by the second receiving module 530 is sent by the first base station, and the first base station is a base station serving the first user equipment.
- the first user equipment further includes:
- a third receiving module configured to receive a second message sent by the first base station, where the first base station is a base station serving the first user equipment, and the second message includes a third timing advance determined by the first base station; Specifically used for:
- the reference signal received by the second receiving module 530 is sent by the first base station.
- the first user equipment further includes:
- the first determining module 520 is specifically configured to:
- the reference signal received by the second receiving module 530 is sent by the first base station.
- the first message received by the first receiving module 510 further includes an identifier:
- the first user equipment further includes:
- a third receiving module configured to receive a second message sent by the first base station, where the first base station is a base station serving the first user equipment, and the second message includes third mapping information between the multiple cells and the multiple timing advances ;
- the first determining module 520 is specifically configured to:
- the reference signal received by the second receiving module 530 is sent by the first base station.
- the third receiving module may be specifically used to:
- Receiving a second message sent by the first base station by using downlink control information signaling, main information block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control protocol signaling.
- the first receiving module 510 is specifically configured to:
- the first base station Receiving, by the first base station, the first message sent by the first base station, where the first base station is a base station serving the first user equipment, where the first message includes third mapping information between the multiple cells and the multiple timing advances;
- the first user equipment further includes:
- a third receiving module configured to receive a second message sent by the second user equipment
- the first determining module 520 is specifically configured to:
- the reference signal received by the second receiving module 530 is sent by the first base station.
- the second message received by the third receiving module includes an identifier
- the first determining module 520 is specifically configured to:
- the time advance amount corresponding to the cell to which the second user equipment belongs is determined according to the third mapping information received by the first receiving module 510, and the time advance amount corresponding to the cell to which the second user equipment belongs is determined as the first time advance amount.
- the first determining module 520 is specifically configured to:
- the time advance amount corresponding to the cell to which the second user equipment belongs is determined according to the third mapping information received by the first receiving module 510, and the time advance amount corresponding to the cell to which the second user equipment belongs is determined as the first time advance amount.
- the first receiving module 510 is specifically configured to:
- the first user equipment further includes:
- a third receiving module configured to receive a second message sent by the second user equipment
- the second determining module 540 is specifically configured to:
- the second message received by the third receiving module includes an identifier
- the second determining module 540 is specifically configured to:
- the second determining module 540 is specifically configured to:
- the first receiving module 510 is specifically configured to:
- the first base station Receiving, by the first base station, the first message sent by the first base station, where the first base station is a base station serving the first user equipment, where the first message includes fourth mapping information between the multiple resources and the multiple timing advances;
- the first determining module 520 is specifically configured to:
- the received reference signal is transmitted by the first base station.
- the first receiving module may be specifically configured to:
- the first base station Receiving, by the first base station, the first message sent by using downlink control information signaling, main information block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control protocol signaling.
- the first receiving module 510 is specifically configured to:
- the first determining module 520 is specifically configured to:
- the first receiving module 510 Determining, according to the fourth mapping information and the third resource received by the first receiving module 510, the timing advance corresponding to the third resource, and using the timing advance corresponding to the third resource as the first timing advance; wherein, the second receiving module 530
- the received reference signal is sent by the third user equipment.
- the first receiving module 510 is specifically configured to:
- the reference signal received by the second receiving module 530 is sent by the third user equipment.
- the first receiving module may be specifically configured to: And receiving, by the third user equipment, the first message sent by using downlink control information signaling, primary information block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control protocol signaling.
- the first user equipment 500 may correspond to an execution subject of a method according to an embodiment of the present invention, and the above and other of the respective modules in the first user equipment 500
- the operations and/or functions are respectively implemented in order to implement the respective processes of the respective methods in FIGS. 1 to 4, and are not described herein again.
- the first user equipment provided by the embodiment of the present invention can determine the time at which the D2D signal is detected by receiving the timing advance and the reference time, so that when the first user equipment detects the D2D signal at the moment, the success of detecting the D2D signal can be improved. rate.
- FIG. 6 shows a schematic block diagram of a second user equipment 600 in accordance with an embodiment of the present invention. As shown
- the second user equipment 600 includes:
- a generating module 610 configured to generate a first message
- the sending module 620 is configured to send, to the first user equipment, the first message generated by the generating module 610, where the first message is used to trigger the first user equipment to determine, according to the first message, that the first user equipment detects the D2D signal sent by the second user equipment.
- the first amount of advance is configured to send, to the first user equipment, the first message generated by the generating module 610, where the first message is used to trigger the first user equipment to determine, according to the first message, that the first user equipment detects the D2D signal sent by the second user equipment. The first amount of advance.
- the first message generated by the generating module 610 includes a second timing advance of the second user equipment to send the D2D signal and/or a flag indicating the d, the area to which the second user equipment belongs.
- the second user equipment 600 may correspond to the execution body of the method according to the embodiment of the present invention, and the above and other operations of the respective modules in the second user equipment 600
- the functions and/or functions are not described herein.
- the second user equipment by generating and sending the first message, may trigger the first user equipment to determine, according to the first message, a first time advance quantity for detecting the D2D signal sent by the second user equipment, and further Determining the first moment of detecting the D2D signal can improve the success rate of detecting the D2D signal.
- FIG. 7 shows a schematic block diagram of a third user equipment 700 in accordance with an embodiment of the present invention.
- the third user equipment 700 includes:
- the first sending module 710 is configured to send a first message to the first user equipment, where the first message is used to trigger the first user equipment to detect, according to the first message, that the first user equipment detects the first D2D signal sent by the second user equipment.
- Time advance The second sending module 720 is configured to send a reference signal to the first user equipment, where the reference signal is used to determine a reference time when the first user equipment detects the D2D signal sent by the second user equipment;
- the cell to which the third user equipment 700 belongs is the same as the cell to which the second user equipment belongs.
- the first message sent by the first sending module 710 includes a first timing advance of the first user equipment to detect the D2D signal.
- the first message sent by the first sending module 710 includes mapping information between multiple resources and multiple timing advances.
- the first sending module 710 is specifically configured to:
- the first message is sent to the first user equipment by using downlink control information signaling, main information block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control protocol signaling.
- the third user equipment 700 may correspond to the execution body of the method according to the embodiment of the present invention, and the above and other operations of the respective modules in the third user equipment 700
- the functions and/or functions are not described herein.
- the third user equipment may trigger the first user equipment to determine, according to the first message and the reference signal, the first moment of detecting the D2D signal, by sending the first message and the reference signal to the first user equipment. It can improve the success rate of detecting D2D signals.
- FIG. 8 shows a schematic block diagram of a first base station 800 in accordance with an embodiment of the present invention.
- the first base station 800 includes:
- the first sending module 810 is configured to send a first message to the first user equipment, where the first user equipment is a user equipment that is served by the first base station, where the first message is used to trigger the first user equipment to determine the first message according to the first message.
- the user equipment detects a first timing advance of the D2D signal sent by the second user equipment;
- the second sending module 820 is configured to send a reference signal to the first user equipment, where the reference signal is used to determine a reference moment when the first user equipment detects the D2D signal sent by the second user equipment.
- the first message sent by the first sending module 810 includes a first timing advance or a timing advance of the first user equipment to send uplink data.
- the first message sent by the first sending module 810 includes mapping information, where the mapping information is mapping information between multiple user equipments and multiple timing advances, multiple cells and multiple time advances. Mapping information between quantities or mapping information between multiple resources and multiple timing advances.
- the first sending module 810 is specifically configured to:
- the first message is sent to the first user equipment by using downlink control information signaling, main information block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control protocol signaling.
- the first base station 800 may correspond to an execution body of a method according to an embodiment of the present invention, and the above and other operations of the respective modules in the first base station 800 In order to realize the corresponding processes of the respective methods in FIG. 1 to FIG. 4, the functions are not described here.
- the first base station by sending the first message and the reference signal to the first user equipment, may trigger the first user equipment to determine, according to the first message and the reference signal, the first moment of detecting the D2D signal, Improve the success rate of detecting D2D signals.
- an embodiment of the present invention further provides a first user equipment 900, which includes a receiver 910, a processor 920, a memory 930, and a bus system 940, the receiver 910, the processor 920, and the The memory 930 is connected through the bus system 940, the memory 930 is used to store instructions, and the processor 920 is configured to execute the instructions stored in the memory 930, wherein the receiver 910 is configured to:
- the processor 920 is used to:
- the first user equipment provided by the embodiment of the present invention can determine the time at which the D2D signal is detected by receiving the timing advance and the reference time, so that when the first user equipment detects the D2D signal at the moment, the success of detecting the D2D signal can be improved. rate.
- the processor 920 may be a central processing unit (a central processing unit), and the processor 920 may also be another general-purpose processor, a digital signal processor (DSP). ), application specific integrated circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like.
- DSP digital signal processor
- ASICs application specific integrated circuits
- FPGAs off-the-shelf programmable gate arrays
- the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
- the memory 930 can include a read only memory and a random access memory, and is directed to the processor 920. Provide instructions and data. A portion of the memory 930 may also include a non-volatile random access memory. For example, the memory 930 can also store information of the device type.
- the bus system 940 can include, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 940 in the figure.
- the steps of the above method may be completed by an integrated logic circuit of hardware in the processor 920 or an instruction in the form of software.
- the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
- the software modules can be located in random memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, etc., which are well established in the art.
- the storage medium is located in the memory 930, and the processor 920 reads the information in the memory 930 and combines the hardware to perform the steps of the above method. To avoid repetition, it will not be described in detail here.
- the receiver 910 is specifically configured to:
- the reference signal is sent by the first base station.
- the first timing advance is a timing advance of the uplink data sent by the first user equipment.
- the receiver 910 is specifically configured to:
- the first base station And receiving, by the first base station, the first message sent by the first base station, where the first base station is a base station serving the first user equipment, where the first message includes first mapping information between the multiple user equipments and the multiple timing advances;
- the reference signal is sent by the first base station.
- the receiver 910 is specifically configured to:
- the processor 920 is specifically configured to:
- the reference signal is sent by the first base station, and the first base station is a base station serving the first user equipment.
- the processor 920 is specifically configured to:
- the first message received by the receiver 910 further includes an identifier.
- the processor 920 is specifically configured to:
- Determining the reference time according to the received reference signal including:
- the processor 920 is specifically configured to:
- the reference signal is sent by the first base station, and the first base station is a base station serving the first user equipment.
- the receiver 910 is specifically configured to:
- the first base station is a base station serving the first user equipment, and the second message includes a third time advance quantity determined by the first base station;
- the processor 920 is specifically configured to:
- the receiver 910 is specifically configured to:
- the first base station is a base station serving the first user equipment
- the second message includes third mapping information between the multiple cells and the multiple timing advances
- the processor 920 is specifically configured to:
- the reference signal is sent by the first base station.
- the first message received by the receiver 910 further includes an identifier.
- Receiver 910 is also specifically used to:
- the first base station is a base station serving the first user equipment
- the second message includes third mapping information between the multiple cells and the multiple timing advances
- the processor 920 is specifically configured to:
- the reference signal is sent by the first base station.
- the second message received by the receiver 910 is sent by downlink control information signaling, main information block signaling, system information block signaling, D2D synchronization channel signaling or radio resource control protocol signaling.
- the receiver 910 is specifically configured to:
- the first base station Receiving, by the first base station, the first message sent by the first base station, where the first base station is a base station serving the first user equipment, where the first message includes third mapping information between the multiple cells and the multiple timing advances;
- the processor 920 is specifically configured to:
- the second message received by the receiver 910 includes an identifier.
- the processor 920 is specifically configured to:
- Determining, according to the second message, the cell to which the second user equipment belongs including:
- the processor 920 is specifically configured to:
- the receiver 910 is specifically configured to:
- the processor 920 is specifically configured to:
- the second message received by the receiver 910 includes an identifier.
- the processor 920 is specifically configured to:
- the processor 920 is specifically configured to:
- the receiver 910 is specifically configured to:
- the processor 920 is specifically configured to:
- the reference signal is sent by the first base station.
- the receiver 910 is specifically configured to:
- the processor 920 is specifically configured to:
- the reference signal is sent by the third user equipment.
- the receiver 910 is specifically configured to:
- the reference signal is sent by the third user equipment.
- the first message received by the receiver 910 may be that the first base station or the third user equipment controls by using downlink control information signaling, primary information block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control. Protocol signaling sent.
- the first user equipment 900 may correspond to the execution body of the method according to the embodiment of the present invention, and may also correspond to the first user equipment 500, and the first The foregoing and other operations and/or functions of the respective modules in the user equipment 900 are respectively omitted in order to implement the corresponding processes of the respective methods in FIG. 1 to FIG.
- the first user equipment provided by the embodiment of the present invention can determine the time at which the D2D signal is detected by receiving the timing advance and the reference time, so that when the first user equipment detects the D2D signal at the moment, the success of detecting the D2D signal can be improved. rate.
- an embodiment of the present invention further provides a second user equipment 1000, which is
- the 1000 includes a transmitter 1010, a processor 1020, a memory 1030, and a bus system 1040.
- the processor 1010, the processor 1020, and the memory 1030 are connected by the bus system 1040.
- the memory 1030 is used to store instructions.
- the processor 1020 is configured to execute the instructions stored in the memory 1030.
- the processor 1020 is configured to:
- Transmitter 1010 is used to:
- the second user equipment by generating and sending the first message, may trigger the first user equipment to determine, according to the first message, a first time advance quantity for detecting the D2D signal sent by the second user equipment, and further Determining the first moment of detecting the D2D signal can improve the success rate of detecting the D2D signal.
- the processor 1020 may be a central processing unit (a central processing unit (CPU), and the processor 1020 may also be another general-purpose processor, a digital signal processor (DSP). ), application specific integrated circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like.
- the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
- the memory 1030 can include read only memory and random access memory and provides instructions and data to the processor 1020.
- a portion of memory 1030 may also include a non-volatile random access memory.
- the memory 1030 can also store information of the device type.
- the bus system 1040 can include, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 1040 in the figure.
- each step of the above method may be completed by an integrated logic circuit of the hardware in the processor 1020 or an instruction in the form of software.
- the steps of the method disclosed in the embodiments of the present invention may be directly implemented as hardware processor execution completion, or may be performed by a combination of hardware and software modules in the processor.
- the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the memory 1030, and the processor 1020 reads the information in the memory 1030 and completes the steps of the above method in combination with hardware. To avoid repetition, it will not be described in detail here.
- the first message includes the second user equipment sending the D2D signal.
- the second user equipment 1000 may correspond to the execution body of the method according to the embodiment of the present invention, and may also correspond to the second user equipment.
- the second user equipment by generating and sending the first message, may trigger the first user equipment to determine, according to the first message, a first time advance quantity for detecting the D2D signal sent by the second user equipment, and further Determining the first moment of detecting the D2D signal can improve the success rate of detecting the D2D signal.
- the embodiment of the present invention further provides a third user equipment 1100, the device
- the 1100 includes a transmitter 1110, a processor 1120, a memory 1130, and a bus system 1140.
- the transmitter 1110, the processor 1120, and the memory 1130 are connected by the bus system 1140.
- the memory 1130 is configured to store instructions, and the processor 1120 is configured to: The instructions stored in the memory 1130 are executed, wherein the transmitter 1110 is configured to:
- the cell to which the third user equipment belongs is the same as the cell to which the second user equipment belongs.
- the third user equipment may trigger the first user equipment to determine, according to the first message and the reference signal, the first moment of detecting the D2D signal, by sending the first message and the reference signal to the first user equipment. It can improve the success rate of detecting D2D signals.
- the processor 1120 may be a central processing unit (a central processing unit, referred to as a "CPU"), and the processor 1120 may also be other general-purpose processors, digital signal processors (DSP). ), application specific integrated circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like.
- the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
- the memory 1130 can include read only memory and random access memory and provides instructions and data to the processor 1020. A portion of the memory 1130 may also include a non-volatile random access memory. For example, the memory 1130 can also store information of the device type.
- the bus system 1140 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 1140 in the figure.
- each step of the above method may be completed by an integrated logic circuit of the hardware in the processor 1120 or an instruction in the form of software.
- the steps of the method disclosed in the embodiments of the present invention may be directly implemented as hardware processor execution completion, or may be performed by a combination of hardware and software modules in the processor.
- the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the memory 1130.
- the processor 1120 reads the information in the memory 1130 and completes the steps of the above method in combination with the hardware. To avoid repetition, it will not be described in detail here.
- the first message includes a first timing advance of the first user equipment to detect the D2D signal.
- the first message includes mapping information between multiple resources and multiple timing advances.
- the first message sent by the transmitter 1110 may be the third user equipment 1100 through downlink control information signaling, main information block signaling, system information block signaling, D2D synchronization channel signaling, or radio resource control protocol signaling. Sent.
- the third user equipment 1100 may correspond to the execution body of the method according to the embodiment of the present invention, and may also correspond to the third user equipment 700, and the third The foregoing and other operations and/or functions of the respective modules in the user equipment 1100 are respectively omitted in order to implement the corresponding processes of the respective methods in FIG. 1 to FIG.
- the third user equipment may trigger the first user equipment to determine, according to the first message and the reference signal, the first moment of detecting the D2D signal, by sending the first message and the reference signal to the first user equipment. It can improve the success rate of detecting D2D signals.
- an embodiment of the present invention further provides a first base station 1200, where the apparatus 1200 includes a transmitter 1210, a processor 1220, a memory 1230, and a bus system 1240, the transmitter 1210, the processor 1220, and the memory. 1230 is coupled through the bus system 1240 for storing instructions, the processor 1220 is configured to execute instructions stored by the memory 1230, wherein the transmitter 1210 is configured to:
- the first base station by sending the first message and the reference signal to the first user equipment, may trigger the first user equipment to determine, according to the first message and the reference signal, the first moment of detecting the D2D signal, Improve the success rate of detecting D2D signals.
- the processor 1220 may be a central processing unit (Central Processing Unit), and the processor 1220 may also be other general-purpose processors, digital signal processors (DSP). ), application specific integrated circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like.
- the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
- the memory 1230 can include read only memory and random access memory and provides instructions and data to the processor 1020.
- a portion of memory 1230 may also include a non-volatile random access memory.
- the memory 1230 can also store information of the device type.
- the bus system 1240 can include, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 1240 in the figure.
- each step of the above method may be completed by an integrated logic circuit of the hardware in the processor 1220 or an instruction in the form of software.
- the steps of the method disclosed in the embodiments of the present invention may be directly implemented as hardware processor execution completion, or may be performed by a combination of hardware and software modules in the processor.
- the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the memory 1230, and the processor 1220 reads the information in the memory 1230 and completes the steps of the above method in combination with the hardware. To avoid repetition, it will not be described in detail here.
- the first message includes a first timing advance or a timing advance of the first user equipment to send uplink data.
- the first message includes mapping information, where the mapping information is mapping information between multiple user equipments and multiple timing advances, and mapping information between multiple cells and multiple timing advances. Or mapping information between multiple resources and multiple timing advances.
- the first message sent by the transmitter 1210 may be that the first base station 1200 passes downlink control information signaling, main information block signaling, system information block signaling, D2D synchronization channel signaling, or wireless. Resource control protocol signaling.
- the first base station 1200 may correspond to the execution body of the method according to the embodiment of the present invention, and may also correspond to the first base station 800, and the first base station 1200.
- the above and other operations and/or functions of the respective modules in order to implement the respective processes of the respective methods in FIG. 1 to FIG. 4 are not described herein.
- the first base station by sending the first message and the reference signal to the first user equipment, may trigger the first user equipment to determine, according to the first message and the reference signal, the first moment of detecting the D2D signal, Improve the success rate of detecting D2D signals.
- 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 disclosed systems, devices, and methods may be implemented in other ways.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
- the units described as separate components may or may not be physically separate.
- the components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over 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 functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium.
- the technical solution of the present invention which is essential to the prior art or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including
- the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) 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), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .
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Abstract
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Priority Applications (11)
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US14/907,227 US10045371B2 (en) | 2014-03-21 | 2014-03-21 | Method for detecting device-to-device signal, user equipment, and base station |
KR1020167002119A KR20160023884A (ko) | 2014-03-21 | 2014-03-21 | 장치 대 장치 신호를 검출하는 방법, 사용자 기기, 및 기지국 |
EP19174094.3A EP3579623A1 (en) | 2014-03-21 | 2014-03-21 | Method for detecting device-to-device signal, user equipment, and base station |
KR1020177029130A KR101933067B1 (ko) | 2014-03-21 | 2014-03-21 | 장치 대 장치 신호를 검출하는 방법, 사용자 기기, 및 기지국 |
JP2016539397A JP6430513B2 (ja) | 2014-03-21 | 2014-03-21 | デバイス対デバイス信号を検出するための方法、ユーザ機器および基地局 |
EP14886430.9A EP3002981B1 (en) | 2014-03-21 | 2014-03-21 | Method for detecting device-to-device signal, user equipment, and base station |
CN201480002060.5A CN104541536B (zh) | 2014-03-21 | 2014-03-21 | 检测设备对设备信号的方法、用户设备和基站 |
PCT/CN2014/073818 WO2015139287A1 (zh) | 2014-03-21 | 2014-03-21 | 检测设备对设备信号的方法、用户设备和基站 |
KR1020177035898A KR101939703B1 (ko) | 2014-03-21 | 2014-03-21 | 장치 대 장치 신호를 검출하는 방법, 사용자 기기, 및 기지국 |
CN201710283544.7A CN107071889B (zh) | 2014-03-21 | 2014-03-21 | 检测设备对设备信号的方法和用户设备 |
US16/020,767 US10375724B2 (en) | 2014-03-21 | 2018-06-27 | Method for detecting device-to-device signal, user equipment, and base station |
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US16/020,767 Continuation US10375724B2 (en) | 2014-03-21 | 2018-06-27 | Method for detecting device-to-device signal, user equipment, and base station |
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KR102485706B1 (ko) | 2016-11-07 | 2023-01-06 | 오티스 엘리베이터 컴파니 | 엘리베이터 시스템 서스펜션 부재 종단 |
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JP6430513B2 (ja) | 2018-11-28 |
KR101933067B1 (ko) | 2019-03-15 |
US10375724B2 (en) | 2019-08-06 |
CN107071889A (zh) | 2017-08-18 |
CN104541536A (zh) | 2015-04-22 |
US20180332609A1 (en) | 2018-11-15 |
EP3002981A1 (en) | 2016-04-06 |
CN104541536B (zh) | 2017-04-26 |
JP2016529848A (ja) | 2016-09-23 |
KR101939703B1 (ko) | 2019-01-17 |
KR20160023884A (ko) | 2016-03-03 |
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