WO2014169695A1 - 一种d2d发现方法及基站、用户设备 - Google Patents
一种d2d发现方法及基站、用户设备 Download PDFInfo
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- WO2014169695A1 WO2014169695A1 PCT/CN2013/091246 CN2013091246W WO2014169695A1 WO 2014169695 A1 WO2014169695 A1 WO 2014169695A1 CN 2013091246 W CN2013091246 W CN 2013091246W WO 2014169695 A1 WO2014169695 A1 WO 2014169695A1
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- WIPO (PCT)
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- user equipment
- discovery signal
- resource
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- base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Definitions
- the present invention relates to the field of wireless communication technologies, and in particular, to a device to device (D2D) discovery method, a base station, and a user equipment.
- D2D device to device
- D2D Device-to-Device
- D2D technology can work in licensed or unlicensed bands, allowing multiple D2D-enabled user equipment (ie, D2D User Equipment, D2D UE) to be directly or without network infrastructure. Discovery / direct communication. There are three main application scenarios for D2D:
- UE1 and UE2 perform data interaction under the coverage of the cellular network, and the user plane data does not pass through the network infrastructure, as shown in mode 1 of FIG. 1;
- the UE4 with poor signal quality is allowed to communicate with the network through the UE3 with network coverage nearby, which can help the operator to expand coverage and improve the answer. the amount
- D2D technology usually includes D2D discovery technology and D2D communication technology:
- the D2D discovery technology is used to determine/determine the proximity between two or more D2D user equipments (for example, within a range in which D2D direct communication can be performed) or to determine/determine that the first user equipment is adjacent to the second user equipment.
- D2D user equipment can discover each other by sending or receiving discovery signals/information. Under the coverage of cellular network, the network can assist D2D user equipment to perform D2D discovery;
- D2D communication technology refers to a technology in which some or all of the communication data between D2D user equipments can communicate directly without going through the network infrastructure.
- the user equipment When performing D2D discovery between user equipments, it is usually necessary to transmit a discovery signal between them to detect. When the other party can receive the signal, it indicates that the two are close to each other, and then interact with the information of the base station or Information interaction between direct user devices to complete the discovery between the two.
- the user equipment is usually used to obtain the discovery signal resource or the eNB uniformly allocates the discovery signal resource to the user equipment. These methods do not consider the state of the user equipment. The location of the user equipment in the cell is likely to cause low signal resource utilization and conflicts between signal resources.
- the present invention provides a D2D discovery method, a base station, and a user equipment to improve the reliability of D2D discovery.
- the embodiment of the invention discloses a D2D discovery method, which includes:
- the user equipment acquires a discovery signal resource allocated by the base station (eNB) for the user equipment, where the discovery signal resource includes a time-frequency domain resource for transmitting or monitoring the discovery signal;
- the discovery signal resource includes a time-frequency domain resource for transmitting or monitoring the discovery signal;
- the discovery signal is transmitted or monitored according to the acquired discovery signal resource for D2D discovery.
- the discovery signal resource further includes a code sequence resource for transmitting or monitoring a discovery signal.
- the discovery signal resource allocated by the base station to the user equipment includes at least The next one or several:
- Different discovery signal resources allocated according to the priority of the user equipment are allocated according to Different discovery signal resources allocated according to the priority of the user equipment.
- the user equipment acquires a discovery signal resource allocated by the base station to the user equipment, and includes:
- the user equipment receives a discovery signal resource set broadcast by the base station;
- the eNB performs coordination confirmation
- the user equipment receives a set of discovery signal resources broadcast by the base station, the user equipment measures the discovery signal resource and reports the base station, and the base station selects a suitable discovery signal resource for the user equipment according to the measurement result of the user equipment; or
- the receiving signal resource allocated by the base station to the user equipment by means of broadcast and proprietary signaling.
- the user equipment receives the discovery signal resource allocated by the base station to the user equipment by using a combination of the broadcast and the dedicated signaling
- the method includes: the user equipment receives the discovery signal resource broadcast by the base station under the setting condition. And the receiving signal resources allocated by the receiving base station to the user equipment through dedicated signaling; or
- the above method further includes:
- the user equipment and/or other base station sends a resource request, where the resource request includes the capability of the user equipment, and the type of the user equipment;
- the base station After receiving the resource request, the base station allocates a discovery signal resource to the user equipment.
- the state of the user equipment includes a connected state and an idle state.
- the discovery signal resource allocated by the base station according to the state of the user equipment includes: a group A resource and a group B resource, where the group A resource is a discovery signal resource allocated by the base station to the connected state user equipment;
- the group B resource is a discovery signal resource allocated by the base station to the idle user equipment.
- the base station dynamically adjusts the resources in the group A resource pool and the group B resource pool, including: the adjustment of the quantity of resources in the respective resource pools of the group A resource pool and the group B resource pool, and resources The adjustment of the time-frequency and/or code resources of the resources in the pool.
- the location of the user equipment is that the user equipment is at the cell edge or the cell center.
- the base station allocates different group A resources according to different locations of the user equipments in the connected state in the cell;
- the base station allocates a cell edge group A resource to the connected mode user equipment in the cell edge area;
- the base station allocates cell center group A resources for the connected state user equipment in the central area of the cell.
- the base station allocates a cell edge group A resource different from a neighbor cell edge region of the cell to the connected state user equipment in the cell edge region.
- the base station when the user equipment in the connected state moves to a different area of the cell, the base station re-allocates the group A resources belonging to the cell area to the user equipment in the connected state.
- the base station dynamically adjusts resources of each of the cell edge group A resource pool and the cell center group A resource pool in the group A resource, including: each cell edge group A resource pool and the cell center group A resource pool Adjustment of the amount of resources, and time-frequency and/or code resources of resources in the resource pool Adjustment.
- the base station when the base station allocates the group A resources, the base station first allocates the discovery signal resources to the high-priority connected state user equipment.
- the base station allocates the group A resource used by the low-priority connected state user equipment to the high-priority connected state user equipment.
- the base station when the base station allocates the group A resource, the available period of the discovery signal resource and the usage mode of the discovery signal are allocated according to the application type of the user equipment;
- the expiration period of the discovery signal resource is a duration that the group A resource is usable by the user equipment
- the manner in which the discovery signal is used includes the period in which the discovery signal is transmitted, the start specific location or the start and offset positions, and the effective time of the continuous transmission;
- the manner in which the discovery signal is used includes deriving information about the manner in which the discovery signal is used.
- the base station instructs the user equipment to release the used group A resource, and allocates the group A resource to other user equipment.
- the user equipment submits a renewal application to the base station, and the base station processes the renewal application;
- the processing of the renewal request by the base station includes agreeing to renew, replacing resources, and releasing resources.
- the base station needs to apply again.
- the base station instructs some user equipment to release the used group A resources in any of the following situations:
- the location of the user equipment changes, the signal resources are insufficient, and the use of the discovered signal resources has interference problems.
- the user equipment before the expiration of the allocated group A resource expiration period, the user equipment sends a message requesting to release the group A resource in advance, and the base station receives the group A resource after receiving the message. Assigned to other user devices.
- the base station allocates a resource set of the group B resource pool to the user equipment in the idle state.
- the base station broadcasts the group B resource set information to the idle user equipment of the lower cell by broadcasting;
- the idle user equipment receives the group B resource set
- the idle user equipment selects the discovery signal resource from the group B resource set to send discovery information.
- the user equipment in the idle state listens to the discovery signal resource corresponding to the group B resource set, and selects the resource with small interference.
- the group B resources selected by the user equipment in the idle state are continuously used in the cell.
- the group B resource is preset by the base station to use the discovery signal; the manner in which the discovery signal is used includes the period of transmitting the discovery signal, the starting specific location or the starting and offset positions, and The effective time of continuous transmission; or
- the manner in which the discovery signal is used includes deriving information about the manner in which the discovery signal is used.
- the user equipment when the user equipment uses the group B resource, if it finds that the interference with other resources and/or other signals is large, the user group re-selects the appropriate group B resource from the group B resource pool;
- the group B resource interference is relatively large, and the user equipment can initiate a radio resource control (RRC) connection establishment, enter the connection state, apply to the base station to allocate the group A resource for the D2D discovery operation, and feed back the indication of the group B resource interference status to the base station.
- RRC radio resource control
- the network management system uniformly configures and/or different base stations can coordinately allocate the same group B resource set.
- the embodiment of the invention further discloses a user equipment, including:
- An acquisition module configured to acquire a discovery signal resource allocated by the base station (eNB) for the user equipment, where the discovery signal resource includes a time-frequency domain resource for transmitting or monitoring the discovery signal;
- a processing module configured to: when the user equipment needs to perform a D2D discovery operation, according to the The discovery signal resource acquired by the acquisition module or the discovery discovery signal is used for D2D discovery.
- the discovery signal resource further includes a code sequence resource for transmitting or monitoring a discovery signal.
- the acquiring module acquires a discovery signal resource allocated by the base station for the user equipment by:
- the eNB Receiving, by the eNB, the discovery signal resource allocated by the eNB for the user equipment by using the dedicated signaling; or receiving the discovery signal resource from the eNB to select the discovery signal resource, and then performing coordination confirmation by the eNB; or
- the eNB After receiving the discovery signal resource set sent by the eNB to the user equipment through dedicated signaling, and selecting the discovery signal resource from the eNB, the eNB performs coordination confirmation; or
- the eNB Receiving, by the eNB, the discovery signal resource set, and measuring the discovery signal resource, and reporting the eNB, the eNB selecting an appropriate discovery signal resource for the user equipment according to the measurement result of the obtaining module; or
- the eNB Receiving, by the eNB, the discovery signal resource set sent by the eNB to the user equipment through the dedicated signaling, and measuring the discovery signal resource and reporting the eNB to the eNB, and the eNB selects an appropriate discovery signal resource for the user equipment according to the measurement result of the acquiring module; or
- the discovery signal resource allocated to the user equipment by the eNB through a combination of broadcast and proprietary signaling.
- the processing module is further configured to send a resource request to the base station to request the base station to allocate a discovery signal resource to the user equipment, where the resource request includes the capability of the user equipment, and the type of the user equipment.
- a base station comprising:
- a configuration module configured to allocate a discovery signal resource to the user equipment, where the discovery signal resource includes a time-frequency domain resource for transmitting the discovery signal;
- the discovery signal resource further includes a code for transmitting a discovery signal. Sequence resource.
- the discovery signal resource allocated by the configuration module to the user equipment includes at least one or more of the following:
- Different discovery signal resources are allocated according to the priority of the user equipment.
- the transceiver module notifies the user equipment of the discovery signal resource allocated for the user equipment by:
- the discovery signal resource set is sent by the broadcast, and the user equipment receives and reports the discovery signal resource, and then selects a suitable discovery signal resource for the user equipment according to the measurement result of the user equipment; or
- the user equipment sends a discovery signal resource set through the dedicated signaling, and the user equipment receives the downlink signal to measure and report the discovery signal resource, and then selects a suitable discovery signal resource for the user equipment according to the measurement result of the user equipment; or
- the discovery signal resource is allocated to the user equipment through a combination of broadcast and proprietary signaling.
- the transceiver module allocates a discovery signal resource to the user equipment by using a combination of broadcast and proprietary signaling in the following manner:
- the transceiver module broadcasts a set of discovery signal resources, and allocates discovery signal resources to the user equipment through dedicated signaling under the set conditions;
- the transceiver module broadcasts a set of discovery signal resources and allocates the user equipment through dedicated signaling.
- the signal resource number indication is found to indicate that the user equipment obtains the discovery signal resource allocated to the user equipment from the discovery signal resource set according to the sequence number.
- the transceiver module is further configured to receive a resource request sent by the user equipment and/or another eNB, where the resource request includes a capability of the user equipment, a type of the user equipment, and the configuration module is The method is configured to allocate a discovery signal resource to the user equipment after receiving the resource request.
- the configuration module is configured to allocate a discovery signal resource according to a state of the user equipment, where the discovery signal resource includes: a group A resource and a group B resource, where the group A resource is allocated to the eNB by the eNB.
- the discovery signal resource used by the user equipment; the group B resource is the discovery signal resource allocated by the eNB to the idle user equipment.
- the configuration module is further configured to dynamically adjust resources in the group A resource pool and the group B resource pool, including: the number of resources in the respective resource pools of the group A resource pool and the group B resource pool Adjustments, and adjustments to the combination of time-frequency and/or code resources of resources in the resource pool.
- the configuration module is configured to allocate different group A resources according to different locations of the user equipments in the connected state according to the connected state;
- the eNB allocates a cell edge group A resource to the connected mode user equipment in the cell edge area;
- the eNB allocates cell center group A resources to the connected mode user equipment in the cell center area.
- the configuration module is configured to allocate a cell edge group A resource different from the cell neighboring cell edge area to the connected state user equipment in the cell edge area.
- the configuration module is configured to, when the user equipment in the connected state moves to a different area of the cell, allocate the group A resource belonging to the cell area to the user equipment in the connected state again.
- the configuration module is configured to dynamically adjust resources of each cell edge group A resource pool and cell center group A resource pool in the group A resource, including: each cell edge group A resource pool and cell center The adjustment of the number of resources in the group A resource pool, and the adjustment of the time-frequency and/or code resources of the resources in the resource pool.
- the configuration module is configured to allocate the resource of the group A, first Assign discovery signal resources to high priority connected state user equipment.
- the configuration module is configured to allocate the group A resource used by the low-priority connected state user equipment to the high-priority connected state user equipment.
- the available use period of the discovery signal resource and the usage mode of the discovery signal are allocated according to the application type of the user equipment; wherein, the discovery signal resource is used.
- the usable period is the length of time that the group A resource is usable by the user equipment;
- the manner in which the discovery signal is used includes the period in which the discovery signal is transmitted, the start specific location or the start and offset positions, and the effective time of the continuous transmission;
- the manner in which the discovery signal is used includes deriving information about the manner in which the discovery signal is used.
- the configuration module is configured to: when the user equipment sends an indication that the used group resource usage period expires, instruct the user equipment to release the used group A resource, where the group A resource is used. Assigned to other user devices;
- processing the renewal application includes agreeing to renew, replacing resources, and releasing resources.
- the transceiver module is further configured to instruct any user equipment to release the used group A resource in any of the following situations:
- the location of the user equipment changes, the signal resources are insufficient, and the use of the discovered signal resources has interference problems.
- the transceiver module is further configured to receive a message request for releasing the group A resource that is sent by the user equipment;
- the configuration module is further configured to allocate the group A resource to other user equipments after the base station receives the message request.
- the configuration module is a resource set configured to allocate a group B resource pool to a user equipment in an idle state.
- the transceiver module is configured to send a group B resource set by broadcasting. Information to the idle user equipment of the sub-cell to which it belongs.
- the group B resource is preset by the configuration module to be used by the discovery signal
- the manner in which the discovery signal is used includes the period in which the discovery signal is transmitted, the start specific location or the start and offset positions, and the effective time of the continuous transmission;
- the manner in which the discovery signal is used includes deriving information about the manner in which the discovery signal is used.
- the solution for discovering signal resources in the D2D discovery process provided by the technical solution of the embodiment can be flexibly applied to various scenarios of D2D discovery, and can reduce conflicts in resource usage, thereby improving the reliability of D2D discovery.
- the method for discovering signal resources in the D2D discovery process provided by this embodiment can also facilitate the unified management of the discovery signal resources by the eNB.
- Figure 1 is an application scenario diagram of D2D
- FIG. 2 is a schematic diagram of a method 1 for a method for an eNB to allocate a group A resource for a connected state user equipment;
- FIG. 3 is a schematic diagram of an LTE/LTE-A time-frequency domain structure;
- FIG. 4 is a schematic diagram of a relationship between a cell edge and a cell center
- FIG. 5 is a schematic diagram of a method 2 of a process for an eNB to allocate a group A resource for a connected state user equipment
- FIG. 6 is a schematic diagram of a method 3 for a eNB to allocate a group A resource for a connected state user equipment
- FIG. 7 is a process for an eNB to allocate a group A resource for a connected state user equipment.
- Method 4 is a schematic diagram
- FIG. 8 is a schematic diagram of a replacement process of a discovery signal resource used by a connected state user equipment to move to a different location of a cell;
- FIG. 9 is a flow chart of a connection state user equipment releasing a discovery signal resource
- FIG. 10 is a flowchart of requesting renewal of a discovery signal resource to be expired by a connected state user equipment
- 11 is a flow chart of the eNB forcing a low-priority user equipment to release a discovery signal resource to a high-priority user equipment to allocate a discovery signal resource;
- FIG. 12 is a process diagram of an idle state user equipment acquiring and using a group B resource
- FIG. 13 is a schematic diagram of a process of replacing a signal resource after a user equipment enters a connected state from an idle state;
- FIG. 14 is a schematic diagram of a user equipment according to an embodiment of the present invention.
- Figure 15 is a schematic diagram of a base station according to an embodiment of the present invention.
- This embodiment provides a D2D discovery method, including the following operations:
- the user equipment acquires a discovery signal resource allocated by the base station (eNB) for the user equipment, where the discovery signal resource includes a time-frequency domain resource for transmitting or monitoring the discovery signal;
- the discovery signal resource includes a time-frequency domain resource for transmitting or monitoring the discovery signal;
- the discovery signal is sent or monitored according to the acquired discovery signal resource for D2D discovery.
- the discovery signal resource may also include code sequence resources for transmitting or listening to the discovery signal.
- the discovery signal resource allocated by the base station to the user equipment includes at least one or more of the following: different discovery signal resources are allocated according to the state of the user equipment, where the user status includes a connected state and an idle state;
- Different discovery signal resources are allocated according to the location of the user equipment, where the location of the user equipment includes the cell edge and the cell center;
- the manner in which the user equipment acquires the discovery signal resource allocated by the base station for the user equipment is as follows:
- the user equipment receives the discovery signal resource set broadcast by the eNB;
- the eNB Receiving a set of discovery signal resources sent by the eNB to the user equipment through dedicated signaling, after the user equipment selects the discovery signal resource, the eNB performs coordination confirmation.
- the user equipment receives the discovery signal resource set broadcasted by the eNB, the user equipment measures the discovery signal resource and reports the eNB, and the eNB selects a suitable discovery signal resource for the user equipment according to the measurement result of the user equipment; or
- the eNB Receiving, by the eNB, the discovery signal resource set sent by the eNB to the user equipment by using the dedicated signaling, and the user equipment measures the discovery signal resource and the eNB, and the eNB selects a suitable discovery signal resource for the user equipment according to the measurement result of the user equipment; or
- the discovery eNB allocates discovery signal resources to the user equipment through a combination of broadcast and proprietary signaling.
- the process of the user equipment receiving the discovery signal resource allocated by the eNB to the user equipment by using the combination of the broadcast and the proprietary signaling may be performed as follows:
- the user equipment Under the set condition, the user equipment receives the discovery signal resource set broadcast by the eNB, and receives the discovery signal resource allocated by the eNB to the user equipment by using dedicated signaling. Alternatively, the user equipment receives the discovery signal resource set broadcasted by the eNB, and the discovery signal resource sequence number indication allocated by the eNB to the user equipment by using the dedicated signaling, so that the user equipment can indicate the discovery signal resource set according to the received sequence number. The discovery signal resource allocated to the user equipment is obtained.
- the discovery signal resource allocated by the base station according to the state of the user equipment may include a group A resource and a group B resource.
- the group A resource is a discovery signal resource allocated by the eNB to the connected mode user equipment;
- the group B resource is a discovery signal resource allocated by the eNB to the idle state user equipment.
- the base station can also dynamically adjust the resources in the group A resource pool and the group B resource pool; including group A and The adjustment of the number of resources in the respective resource pools of group B, and the adjustment of the time-frequency and/or code resources of the resources in the resource pool.
- the eNB allocates group A resources to the first user equipment in the connected state by using a dedicated signaling manner.
- the D2D discovery process is as shown in FIG. 2, and the steps are as follows:
- the first user equipment in the connected state sends information requesting the discovery signal resource to the eNB when the discovery signal resource needs to be used.
- the eNB After receiving the information of the first user equipment for the discovery of the signal resource, the eNB selects a discovery signal resource from the group A resource pool to allocate the discovery signal resource to the first user equipment, and sends the discovery signal resource to the first user equipment through the dedicated signaling.
- the discovery signal resources include usage information in the time domain, the frequency domain, and/or the discovery signal code sequence.
- the wireless communication resources are used in the time domain-frequency domain two-dimensional form (as shown in Fig. 3), and the signals used on the wireless communication resources may be code sequences.
- the discovery signal code sequence is usually a sequence that defines a requirement for use, and may be a known sequence, such as a reused preamble sequence, a pilot sequence, or the like; or a D2D may newly define a certain sequence according to requirements such as characteristics used by itself; Or add extra fields to known sequences.
- the time domain and the frequency domain information are the resource information that the first user equipment sends the discovery signal during the D2D discovery process, and the discovery signal needs to be carried in the corresponding time domain and frequency domain for transmission.
- the used time-frequency resources can be used in the uplink resources or downlink resources in the cellular communication to allocate time-frequency resources specifically used for the D2D discovery process, and are orthogonally shared between the D2D discovery pairs; or use the cellular Uplink resources or downlink resource usage in communication are shared orthogonally with cellular communication; or use uplink resources or downlink resources in cellular communication to share in a multiplexed manner with cellular communication, and the like.
- the first user equipment After receiving the discovery signal resource allocated by the eNB, the first user equipment sends a discovery signal on the corresponding time-frequency resource, and if the discovery signal code sequence mode is used, the discovery signal code sequence is sent on the corresponding time-frequency resource; After the user equipment receives the discovery signal, according to the solution implemented by the discovery process, if the received discovery signal information is to be fed back to the eNB or the first user equipment, the process is performed to complete the discovery process between the user equipments.
- the eNB may pass the network.
- the network-related network element obtains type information of the first user equipment, such as location information of the user equipment, application type of the user equipment, priority of the user equipment, and the like, so that the eNB can allocate more reasonable discovery signal resources and/or use for the user equipment. the way.
- the base station may also allocate different group A resources according to different locations of the connected user equipments in the cell;
- the eNB allocates a cell edge group A resource to the connected mode user equipment in the cell edge area;
- the eNB allocates cell center group A resources to the connected mode user equipment in the cell center area. For example, the eNB allocates the discovery signal resource to the first user equipment in the connected state by using a dedicated signaling manner according to the user equipment location information acquired by the network-related network element, and the steps include the following steps: The first user equipment in the connected state needs to be used. When the signal resource is found, information for requesting the discovery signal resource is sent to the eNB.
- the eNB After receiving the information about the discovery of the signal resource by the first user equipment, the eNB obtains the location information of the user equipment of the first user equipment by using the network related network element.
- the eNB allocates different types of discovery signal resources to different areas of the cell where the first user equipment is located according to the obtained first user equipment location information: when the first user equipment is in the cell center, the eNB allocates the group A resources belonging to the cell center; A user equipment determines the specific location of the cell edge at the cell edge, and allocates group A resources of different cell edges according to the location thereof. As shown in FIG. 4, group A resources at the cell edge may be located at different edges of the cell. According to the relationship with the neighboring cell, the cell edge group A resource is subdivided into several types of cell edge group A resources.
- the eNB transmits the allocated discovery signal resource to the first user equipment through dedicated signaling.
- the first user equipment After receiving the discovery signal resource allocated by the eNB, the first user equipment sends a discovery signal on the corresponding time-frequency resource, and if the discovery signal code sequence mode is used, the discovery signal code sequence is sent on the corresponding time-frequency resource; After the user equipment receives the discovery signal, according to the solution implemented by the discovery process, if the received discovery signal information is to be fed back to the eNB or the first user equipment, the process is performed to complete the discovery process between the user equipments.
- the process of allocating discovery signal resources according to the application type of the user equipment is described below.
- the eNB allocates the discovery signal resource and the usage mode to the first user equipment in the connected state by using a dedicated signaling manner according to the user equipment application type information acquired by the network-related network element.
- the searched resource location/range may be narrowed according to the application type, thereby reducing the power consumption of the user equipment.
- the steps are as follows:
- the first user equipment in the connected state sends information requesting the discovery signal resource to the eNB when the discovery signal resource needs to be used.
- the eNB After receiving the information about the discovery of the signal resource by the first user equipment, the eNB obtains the application type information of the first user equipment by using the network related network element.
- the eNB selects a discovery signal resource from the group A resource pool to allocate a discovery signal resource to the first user equipment, and determines the usable period of the discovery signal resource and the usage manner of the discovery signal according to the obtained application type information of the first user equipment (eg, Send the discovery signal period, start specific location or start and offset position and the effective time of continuous transmission; or derive information about the way the signal is found to be used, etc., such as the period of sending the discovery signal in the application type is found around Adjacent to the user equipment, the usable period of the discovery signal resource may be set to a fixed time limit, for example, 120s or the like, or the usable period of the discovery signal resource is set to be continuously transmitted until the first user equipment proposes to stop, such as Complete discovery for a user device.
- the usable period of the discovery signal resource may be set to a fixed time limit, for example, 120s or the like, or the usable period of the discovery signal resource is set to be continuously transmitted until the first user equipment proposes to stop, such as Complete discovery
- the eNB After determining the information, the eNB sends the information to the first user equipment applying for the discovery signal resource through dedicated signaling.
- the first user equipment After receiving the discovery signal resource allocated by the eNB, the first user equipment periodically sends the discovery signal on the specified time-frequency resource according to the specified discovery signal resource usage manner, and if the discovery signal code sequence mode is used, the corresponding Sending a discovery signal code sequence on the time-frequency resource; after receiving the discovery signal, the second user equipment performs the process according to the solution implemented by the discovery process, if the received discovery signal information is to be fed back to the eNB or the first user equipment, Complete the discovery process between user devices.
- the eNB sends a discovery signal resource set by broadcasting, and the first user equipment in the connected state selects the candidate discovery signal resource, and the eNB coordinates the confirmation that the discovery signal resource can be used.
- the eNB sends a discovery signal resource collection mode by broadcasting, and the first user equipment in the connected state selects the discovery signal resource, and the eNB coordinates the process of confirming that the selected discovery signal resource can be used.
- the steps are as follows:
- the eNB broadcasts a set of discovery signal resources of the available group A resources to the user equipment in which the lower cell is in the connected state; and broadcasts the different group A resources to the different location areas of the cell, for example, broadcasts the cell for the connected user equipment for the cell center.
- the different cell edge broadcasts the corresponding cell edge group a discovery signal resource set of the A resource; the first user equipment in the connected state selects the candidate discovery signal resource from the discovery signal resource set of the available broadcast group A resource when the discovery signal resource needs to be used; Selecting a discovery signal resource with less interference according to the interference measurement condition of the discovery signal resource; feeding back the selected candidate discovery signal resource to the eNB, and transmitting the relevant measurement result feedback to the eNB; the eNB receiving the measurement of the feedback of the first user equipment After the result and the candidate discovery signal resource, the eNB accesses the first user equipment
- the selected candidate discovery signal resources are coordinated to determine that they can be used;
- the first user equipment After receiving the discovery signal resource indication that can be used by the eNB to confirm, the first user equipment sends a discovery signal on the corresponding time-frequency resource, and if the discovery signal code sequence mode is used, sends the discovery signal code sequence on the corresponding time-frequency resource.
- the second user equipment After the second user equipment receives the discovery signal, according to the solution implemented by the discovery process, if the received discovery signal information needs to be fed back to the eNB or the first user equipment, the process is performed to complete the discovery process between the user equipments.
- the eNB may obtain the type information of the first user equipment by using the network related network element, for example, the location information of the user equipment, the application type of the user equipment, and the user. The priority of the device, etc., so that the eNB coordinates reasonable discovery signal resources and/or usage patterns for the user equipment.
- the network related network element for example, the location information of the user equipment, the application type of the user equipment, and the user. The priority of the device, etc., so that the eNB coordinates reasonable discovery signal resources and/or usage patterns for the user equipment.
- the following describes the manner in which the eNB coordinates and allocates the discovery signal resources according to the user equipment application type information acquired by the network-related network element after receiving the discovery signal resources selected by the first user equipment, including the following steps:
- the eNB broadcasts a discovery signal resource set of the available group A resources to the user equipment whose lower cell is in the connected state;
- the candidate discovery signal resource When the first user equipment in the connected state needs to use the discovery signal resource, select the candidate discovery signal resource from the discovery signal resource set of the available broadcast group A resource that is received; for example, according to the interference measurement of the discovery signal resource The situation is performed to select the discovery signal resource with less interference; the selected candidate discovery signal resource is fed back to the eNB, and the related measurement result is sent back to the eNB; the eNB receives the measurement result fed back by the first user equipment and the candidate discovery signal resource.
- the eNB determines, by the eNB, the usable period of the discovery signal resource and the discovery signal according to the application type information of the first user equipment Usage (eg, the period in which the discovery signal is sent, the starting specific location or the starting and offset locations and the effective time of the continuous transmission; or the information about the way the signal is found to be used), eg, the period during which the discovery signal is sent is Application type is to find all neighbors around The device, the usable period of the discovery signal resource can be set to a certain fixed time limit, for example, 120s or the like, or the usable period of the found signal resource is set to be continuously sent until the first user equipment proposes to stop, for example, complete Discovery of a user device;
- the usable period of the discovery signal resource can be set to a certain fixed time limit, for example, 120s or the like, or the usable period of the found signal resource is set to be continuously sent until the first user equipment proposes to stop, for example, complete Discovery of a user device;
- the first user equipment After receiving the available discovery signal resource indication and usage mode fed back by the eNB, the first user equipment sends a discovery signal on the corresponding time-frequency resource, and if the discovery signal code sequence mode is used, the discovery message is sent on the corresponding time-frequency resource.
- the second user equipment After the second user equipment receives the discovery signal, according to the solution implemented by the discovery process, if the received discovery signal information is to be fed back to the eNB or the first user equipment, the process is performed to complete the discovery process between the user equipments. .
- an example of a process for an eNB to allocate a discovery signal resource set by a eNB after receiving a discovery signal resource request by a first user equipment in a connected state is as follows: The eNB broadcasts a discovery signal resource set of the available group A resources to the user equipment whose lower cell is in the connected state;
- the first user equipment in the connected state sends an application for using the discovery signal resource to the eNB when the discovery signal resource needs to be used;
- the eNB After receiving the information of the first user equipment to apply for the discovery signal resource, the eNB selects a discovery signal resource from the group A resource pool to allocate a discovery signal resource to the first user equipment, and notifies the first user equipment of the corresponding discovery signal resource sequence number by signaling. .
- the first user equipment After receiving the discovery signal resource sequence number allocated by the eNB, the first user equipment obtains the discovery signal resource allocated by the eNB according to the previously discovered discovery signal resource set broadcasted by the eNB, and then sends the discovery signal resource on the corresponding time-frequency resource.
- the discovery signal if the discovery signal code sequence mode is used, sends the discovery signal code sequence on the corresponding time-frequency resource; after the second user equipment receives the discovery signal, according to the solution implemented by the discovery process, if it needs to be to the eNB or the first user
- the discovery signal information received by the device feedback performs this process to complete the discovery process between user devices.
- the eNB may obtain the type information of the first user equipment, such as the location information of the user equipment, the application type of the user equipment, and the priority of the user equipment, by using the network related network element.
- the eNB can allocate more reasonable discovery signal resources and/or usage manners for the user equipment, and the corresponding operations can refer to the foregoing application scenarios.
- the eNB first sends a discovery signal resource set to the first user equipment of the connection state of the application discovery signal resource by using the dedicated signaling, where the first user equipment of the connection state selects the candidate discovery signal resource, and the eNB confirms the selected discovery signal.
- the eNB sends a discovery signal resource collection mode through dedicated signaling, and the first user equipment in the connected state selects a candidate discovery signal resource, and the eNB confirms that the selected discovery signal resource can be used. :
- the first user equipment in the connected state sends information requesting the discovery of the signal resource to the eNB when the discovery signal resource needs to be used.
- the eNB After receiving the information of the first user equipment to apply for the discovery signal resource, the eNB obtains the type information of the first user equipment, including the location information of the first user equipment, and the first user, by using the network related network element. Device application type, priority of the first user device, and the like.
- the eNB sends a discovery signal resource set belonging to the group A resource available in the area where the first user equipment is located to the first user equipment according to the obtained first user equipment location information; the first user equipment receives the discovery After the signal resources are collected, the candidate discovery signal resources are selected according to the interference measurement situation, and the interference measurement result and the candidate discovery signal resources are fed back to the eNB through signaling.
- the eNB can determine the usable period of the discovery signal resource and the usage mode of the discovery signal according to the acquired information of the application type of the first user equipment, for example, the period of sending the discovery signal, the starting specific location, or the starting and offset positions. And the effective time of continuous transmission; or deriving information about the manner in which the signal is found to be used, for example, the period in which the discovery signal is transmitted is in the application type is all neighboring user equipments around the discovery, and the usable period of the discovery signal resource can be set to some A fixed time limit, such as 120s, or the expiration date of the discovered signal resource is set to be continuously transmitted until the first user equipment proposes to stop, for example, completing the discovery for a certain user equipment.
- the eNB After receiving the interference measurement result and the candidate discovery signal resource fed back by the first user equipment, the eNB coordinates the candidate signal resource availability of the candidate selected by the first user equipment to confirm that it can be used; The manner in which the first user equipment sends the discovery signal resource.
- the first user equipment After receiving the available discovery signal resource indication and usage mode fed back by the eNB, the first user equipment sends a discovery signal on the corresponding time-frequency resource, and if the discovery signal code sequence mode is used, the discovery message is sent on the corresponding time-frequency resource.
- the second user equipment After the second user equipment receives the discovery signal, according to the solution implemented by the discovery process, if the received discovery signal information is to be fed back to the eNB or the first user equipment, the process is performed to complete the discovery process between the user equipments. .
- the following describes the process in which the eNB sends a discovery signal resource set by broadcasting, and the first user equipment that requests the discovery of the signal resource to perform the discovery signal resource related measurement and reports to the eNB, and the eNB allocates the discovery signal resource according to the measurement result.
- the eNB sends a discovery signal resource set by broadcasting, and the first user equipment that requests the connection state of the discovery signal resource performs the discovery signal resource related measurement and reports to the eNB, and the eNB allocates the discovery signal resource according to the measurement result thereof.
- the process example, the steps are as follows: The eNB broadcasts a discovery signal resource set of the available group A resources to the user equipment whose lower cell is in the connected state;
- the first user equipment in the connected state needs to use the discovery signal resource, perform related measurement, such as interference measurement, on the discovery signal resource of the available group A resource of the received broadcast; after the measurement is completed, apply to the eNB. Discover signal resources and report the measurement results;
- the eNB After receiving the information about the discovery of the signal resource, the eNB obtains the type information of the first user equipment, including the location information of the first user equipment, the first user equipment application type, and the first user equipment, by using the network related network element. Priority, etc.
- the eNB allocates a discovery signal resource according to the measurement result and the currently discovered signal resource usage status.
- the eNB determines the usable period of the discovery signal resource and the usage mode of the discovery signal (such as sending Discover the period of the signal, the starting specific location or the starting and offset position and the effective time of continuous transmission; or derive information about the way the signal is found to be used, etc., such as the period during which the discovery signal is sent, in the application type is all neighbors around the discovery
- the user equipment may find that the available period of the signal resource may be set to a fixed time limit, such as 120s, or the expiration period of the found signal resource may be set to be continuously sent until the first user equipment proposes to stop, such as completing The discovery of a user device.
- the first user equipment After receiving the discovery signal resource and usage mode allocated by the eNB, the first user equipment sends a discovery signal on the corresponding time-frequency resource, and if the discovery signal code sequence mode is used, the discovery signal code sequence is sent on the corresponding time-frequency resource.
- the second user equipment After the second user equipment receives the discovery signal, according to the solution implemented by the discovery process, if the received discovery signal information needs to be fed back to the eNB or the first user equipment, the process is performed to complete the discovery process between the user equipments.
- the eNB first sends a discovery signal resource set to the first user equipment of the connection state of the application for the discovery signal resource by using the dedicated signaling, and the first user equipment of the connection state performs the measurement of the discovery signal resource and reports it to the eNB, and the eNB performs measurement according to the eNB.
- the result is a process of assigning discovery signal resources to it.
- the eNB sends a discovery signal resource set mode through dedicated signaling, and the first user equipment in the connected state performs measurement of the discovery signal resource and reports it to the eNB, and the eNB allocates the discovery signal resource according to the measurement result.
- the eNB After receiving the information about the discovery of the signal resource, the eNB obtains the type information of the first user equipment, including the location information of the first user equipment, the first user equipment application type, and the first user equipment, by using the network related network element. Priority, etc.
- the eNB sends a discovery signal resource set belonging to the group A resource available in the area where the first user equipment is located to the first user equipment according to the obtained first user equipment location information; the first user equipment receives the discovery After the signal resources are aggregated, the measurement related to the discovery signal resources, such as the measurement of the interference, is performed, and the interference measurement result is fed back to the eNB through signaling.
- the eNB can determine the usable period of the discovery signal resource and the usage manner of the discovery signal according to the acquired information of the application type of the first user equipment, such as the period of sending the discovery signal, the starting specific location, or the starting and offset locations.
- Information such as the effective time of continuous transmission; or information about the way in which the signal is found to be discovered, such as the period during which the discovery signal is sent is applied to all neighboring user equipments around the discovery type, and the usable period of the discovery signal resource can be set to a certain fixed period.
- the time limit such as 120s, or the like, may set the usable period of the found signal resource to be continuously transmitted until the first user equipment proposes to stop, such as completing the discovery for a certain user equipment.
- the eNB After receiving the measurement result fed back by the first user equipment, the eNB allocates the discovery signal resource according to the measurement result and the currently discovered signal resource usage status, and simultaneously sends the discovery signal resource usage manner to the first user equipment.
- the first user equipment After receiving the discovery signal resource and usage mode allocated by the eNB, the first user equipment sends a discovery signal on the corresponding time-frequency resource, and if the discovery signal code sequence mode is used, the discovery signal code sequence is sent on the corresponding time-frequency resource.
- the second user equipment After the second user equipment receives the discovery signal, according to the solution implemented by the discovery process, if the received discovery signal information needs to be fed back to the eNB or the first user equipment, the process is performed to complete the discovery process between the user equipments.
- the first user equipment in the connected state receives the discovery signal from the cell edge 1
- An example of the process of moving a location to a cell center is as follows:
- the eNB detects that the first user equipment that is transmitting the discovery signal by the eNB is moving from the location of the cell edge 1 to the cell center location, and the eNB notifies the first user equipment to stop transmitting the discovery signal by using signaling, and releases the used discovery signal.
- the resource is replaced with a discovery signal resource belonging to the location of the new zone.
- the first user equipment and the eNB refer to the foregoing implementation methods, and the eNB completes re-allocation of the new discovery signal resource to the first user equipment, and the first user equipment feeds back to the eNB that the discovery signal resource replacement is completed, and the new signaling resource is used.
- the following describes an example in which the eNB allocates the replacement group A resource to the first user equipment by using the dedicated signaling mode.
- the first user equipment After receiving the message of replacing the discovery signal resource, the first user equipment stops the transmission of the discovery signal, and releases the used discovery signal resource, and the eNB may allocate the discovery signal resource to other user equipments when needed, and the corresponding process may refer to implementation.
- the eNB selects the group A resource belonging to the cell center to allocate the discovery signal resource to the first user equipment, and allocates the usable period of the discovery signal resource and the usage manner of the discovery signal according to the application type of the first user equipment (eg, sending discovery) Information such as the period of the signal, the starting specific location or the starting and offsetting positions, and the effective time of the continuous transmission; or deriving information about the manner in which the signal is found to be used, is transmitted to the first user equipment through dedicated signaling;
- the application type of the first user equipment eg, sending discovery
- Information such as the period of the signal, the starting specific location or the starting and offsetting positions, and the effective time of the continuous transmission; or deriving information about the manner in which the signal is found to be used, is transmitted to the first user equipment through dedicated signaling;
- the first user equipment After receiving the new discovery signal resource indication information and the usage mode, the first user equipment sends a discovery signal on the corresponding time-frequency resource. If the discovery signal code sequence mode is used, the discovery message is sent on the corresponding time-frequency resource. After the second user equipment receives the discovery signal, according to the solution implemented by the discovery process, if the received discovery signal information is to be fed back to the eNB or the first user equipment, the process is performed to complete the discovery process between the user equipments. .
- the first user equipment that is transmitting the discovery signal in the connected state moves from the other edge area location of the cell to the cell center location, or moves from the cell center location to the cell edge zone location, or moves from one cell edge location location to another.
- the replacement of the discovery signal resource should be performed by referring to the above description process of this embodiment.
- the process of releasing the discovery signal resource by the first user equipment in the connected state is described below.
- the discovery signal resource allocated by the eNB used by the first user equipment in the connected state has a usable period. After the expiration of the expiration period, the first user equipment releases the used discovery signal resource in time, and the eNB can use the discovery signal.
- the resource is re-allocated to the user equipment for use; or the eNB requests the first user equipment to release the device because the discovery signal resource used by the first user equipment is replaced, or the signal resource is insufficient, or the use of the signal resource is found to have interference problems.
- the discovery signal resource used; or the first user equipment in the connected state needs to release the discovery signal resource used because the discovery process has been completed, or the discovery operation is not performed before the discovery of the use of the signal resource expires.
- the eNB may allocate the discovery signal resource released by the first user equipment to other user equipments for use.
- an example of a process in which a first user equipment in a connected state releases a discovery signal resource is as follows:
- the first user equipment requests the eNB to release the discovery signal resource by using corresponding signaling
- the eNB sends a request acknowledgement for releasing the discovery signal resource to the first user equipment, and requires the first user equipment to stop sending the discovery signal and release the discovery signal resource;
- the first user equipment After receiving the stop sending discovery signal and releasing the discovery signal resource signaling sent by the eNB, the first user equipment stops transmitting the discovery signal, releases the used discovery signal resource, and sends signaling feedback of the completed discovery signal resource release to the eNB;
- the eNB After receiving the signaling that the first user equipment has completed the discovery signal resource release, the eNB integrates the discovery signal resource into the corresponding discovery signal resource pool, and allocates and uses the user equipment for applying for the discovery signal resource.
- the process of releasing the discovery signal resource by the first user equipment in other situations is similar, except that some first user equipment does not need to apply for releasing the discovery signal resource, but directly the eNB proposes to release the discovery signal resource to the first user equipment. Claim.
- the first user equipment still needs to use the discovery signal resource after the first user equipment is released, the first user equipment needs to re-apply to the eNB, and the eNB re-distributes the discovery signal resource.
- the following describes the discovery signal resources used by the first user equipment in the connected state to expire, to the eNB.
- the process of applying for renewal is described.
- an example of a process for requesting renewal of a discovery signal resource used by a first user equipment in a connected state is as follows:
- the first user equipment in the connected state still needs to use the discovery signal resource when the set discovery signal resource expiration period expires, and proposes a renewal request for discovering the use of the signal resource to the eNB; the eNB receives the first user equipment.
- the renewal application based on the current status of the discovered signal resources in the region to which it belongs, the first user equipment type and other information, comprehensive evaluation is performed. If the renewal request is met, the first user equipment applying for renewal is sent to agree to renew the contract.
- the signaling feedback of the application includes information such as the discovery period of the signal resource and the usage of the discovery signal;
- the first user equipment After receiving the signaling feedback that the first user equipment agrees to renew, the first user equipment resets the discovery signal resource available period timer according to the information that agrees to renew the subscription, and uses the discovery signal resource usage mode allocated by the eNB.
- the eNB If the eNB considers that it does not meet the renewal requirement during the process of the renewal, the eNB sends a signaling requesting the release of the discovery signal resource to the first user equipment, and the corresponding procedure is referred to the sixth embodiment;
- the eNB considers that the discovery signal resource to be used needs to be replaced during the evaluation renewal process, refer to the fifth embodiment to complete the replacement of the discovery signal resource.
- the high-priority user equipment applies for the discovery signal resource, and the eNB finds that there is no discoverable signal resource.
- the eNB forces the low-priority user equipment to release the discovery signal resource, and allocates the discovery signal resource to the high-priority user equipment.
- an example of a process for an eNB to force a low-priority user equipment to release a discovery signal resource and allocate a discovery signal resource to a high-priority user equipment is as follows:
- the high priority user equipment submits an application discovery signal resource to the eNB;
- the eNB After receiving the application of the high-priority user equipment, the eNB finds that there is no discovery signal resource that can be allocated for the high-priority user equipment, and the eNB checks the low priority of using the discovery signal resource in the same cell area as the high-priority user equipment.
- Level user equipment
- the eNB selects a discovery signal resource of a low priority user equipment, and sends a signaling for releasing the discovery signal resource thereto; After receiving the signaling for releasing the discovery signal resource, the low-priority user equipment stops the sending of the discovery signal by releasing the discovery signal according to the corresponding procedure of the sixth embodiment, and notifies the eNB to complete the release of the discovery signal resource;
- the eNB After receiving the signaling of releasing the discovery signal resource by the low-priority user equipment, the eNB allocates the discovery signal resource to the high-priority user equipment.
- the process by which the eNB allocates discovery signal resources for high-priority user equipment can be performed by referring to the corresponding manner described above.
- the eNB broadcasts an available group B resource set to the user equipment in the idle state of the cell; the resource set includes a time-frequency resource used by the discovery signal resource, and/or a discovery signal code sequence, and the eNB sets the discovery signal resource.
- the way the discovery signal is used (such as the period in which the discovery signal is sent, the starting specific location or the starting and offset locations, and the effective time of the continuous transmission; or deriving information about how the signal is used).
- the first user equipment that needs to use the discovery signal resource to be in an idle state selects a group B resource from the available group B resource set that receives the broadcast;
- the first user equipment listens to the received signal on the time-frequency domain resource specified by the selected discovery signal resource to determine whether there is interference in the use of the resource, so as to select a resource with less interference;
- the first user equipment periodically sends the discovery signal on the specified time-frequency resource according to the selected discovery signal resource according to the specified discovery signal usage manner.
- the second user equipment receives the discovery signal, according to the solution implemented by the discovery process, if the received discovery signal information needs to be fed back to the eNB or the first user equipment, the process is performed to complete the discovery process between the user equipments.
- the first user equipment should re-select another group B resource from the available group B resource set of the received broadcast, and then repeat the above Steps perform resource availability detection to ensure that the selected group B resources are available;
- the first user equipment should initiate an RRC connection setup, enter a connected state, and allocate the discovery signal resources by the eNB for use.
- the discovery process between the user equipments simultaneously feeds back to the eNB an indication of the group B resource interference status.
- the group B resources obtained by the idle first user equipment can be continuously used in the cell, and are not replaced because the first user equipment moves to different locations of the cell.
- the following describes the group B resources, which can be divided into several groups according to the user equipment's path loss test situation.
- the idle user equipment is selected according to the path loss test, including the following steps:
- the eNB broadcasts an available group B resource set to the user equipment in the idle state of the cell; the resource set includes a time-frequency resource used by the discovery signal resource, and/or a discovery signal code sequence, and the eNB sets the discovery signal resource.
- the way the discovery signal is used eg, the period of the discovery signal, the starting specific location or the starting and offset locations, and the effective time of the continuous transmission; or deriving information about how the signal is used).
- the first user equipment in which the discovery signal resource is in an idle state needs to be used to test the current path loss condition; according to the current path loss condition, the discovery signal resource is selected from the corresponding group of the group B resource;
- the first user equipment listens to the received signal on the time-frequency domain resource specified by the selected discovery signal resource to determine whether there is interference in the use of the resource, so as to select a resource with less interference;
- the first user equipment periodically sends the discovery signal on the specified time-frequency resource according to the selected discovery signal resource according to the specified discovery signal usage manner; after the second user equipment receives the discovery signal, according to the solution implemented by the discovery process, The process of performing discovery between the user equipment is performed by feeding back the received discovery signal information to the eNB or the first user equipment.
- the first user equipment should initiate an RRC connection setup, enter the connected state, and allocate the discovery signal resources by the eNB to perform the discovery process between the user equipments. An indication of the group B resource interference status is fed back to the eNB.
- the group B resources obtained by the idle first user equipment can be continuously used in the cell, and are not replaced because the first user equipment moves to different locations of the cell.
- the following describes the process of transforming the signal resources after the first user equipment enters the connected state from the idle state.
- the steps are as follows:
- the first user equipment enters the connected state from the idle state, stops the transmission of the discovery signal, discards the group B resource being used, and sends information requesting the discovery signal resource to the eNB.
- the eNB After receiving the information about the discovery of the signal resource, the eNB obtains the type information of the first user equipment, including the location information of the first user equipment, the first user equipment application type, and the first user equipment, by using the network related network element. Priority, etc.
- the eNB allocates the discovery signal resource of the location area where the first user equipment is located according to the obtained first user equipment location information; and allocates the usable period of the signal resource and the usage manner of the discovery signal according to the application type of the first user equipment (eg, The information about the period of the discovery signal, the start specific location or the start and offset positions, and the effective time of the persistent transmission, and the eNB allocation method and the first user equipment acquisition manner may refer to the various process methods described above.
- the first user equipment After receiving the available discovery signal resource indication and usage mode fed back by the eNB, the first user equipment sends a discovery signal on the corresponding time-frequency resource, and if the discovery signal code sequence mode is used, the discovery message is sent on the corresponding time-frequency resource.
- the second user equipment After the second user equipment receives the discovery signal, according to the solution implemented by the discovery process, if the received discovery signal information is to be fed back to the eNB or the first user equipment, the process is performed to complete the discovery process between the user equipments. .
- the process of dynamically adjusting Group A and Group B resources by the eNB is described below.
- the following is an example in which the eNB adjusts the number of resources of the group A to meet the group B resources as an example.
- the steps are as follows:
- the eNB finds that after the discovery of the signal resource is used, a certain type of resource is less, and it is desirable to adjust the resource structure. For example, the group A resource is used less, and there are a large number of idle user equipments that need to use the discovery signal resource (if there is more idle) When the user equipment feeds back to the eNB to obtain the discovery signal resource, a conflict occurs, and the eNB needs to go to the connection state to obtain the discovery signal resource, and the eNB wants to adjust the partial group A resource to the group B resource;
- the eNB analyzes the resource usage status of the group A, including the cell center group A resource and each cell edge group A resource; and aligns the adjustable resources, including the adjustable number of resources in each group A resource pool, and the time frequency and/or Adjustable conditions in which code resources are combined with each other;
- the eNB adjusts the appropriate group A resources to be group B resources, and is included in the group B resource pool; During the whole process, it may be, but is not limited to, the following information needs to be re-edited: The identity of the discovered signal resource
- the eNB notifies the idle state user equipment by broadcasting the resource set of the group B resource pool;
- the idle user equipment uses the resources of the group B resource pool in a competitive manner, and the corresponding process is performed with reference to the eighth and ninth embodiments.
- the negotiation of the group B resource set between adjacent eNBs is described below.
- the neighboring eNBs negotiate to allocate the same set of group B resources, so that when the idle user equipment moves in different eNBs, the received group B resource set will be the same, and will remain in the process of selecting the discovery signal resource. Consistent, it is conducive to the continuous development of the D2D discovery process between different eNBs.
- the negotiation between the eNBs on the group B resource set is as follows:
- the first eNB sends a request for negotiation of the inter-eNB group B resource set to its neighboring second eNB; the second eNB feeds back to the first eNB to agree to perform the inter-eNB group B resource set negotiation; the first eNB is adjacent to the first eNB.
- the second eNB sends the information of the group B resource set, including the number of group B resources, the time-frequency resource of the group B resource, and/or the discovery signal code sequence, and the manner in which the eNB uses the discovery signal set by each discovery signal resource. (eg, the period in which the discovery signal is sent, the starting specific location or the starting and offset locations, and the effective time of continuous transmission, etc.);
- the second eNB After receiving the information of the group B resource set sent by the first eNB, the second eNB determines to adjust its own group B resource set or requires the first eNB to perform the adjustment of the group B resource set according to the situation of the group B resource set;
- the group B resource set is adjusted according to the embodiment 11. After the adjustment is completed, the group B resource set is fed back to the first eNB, and the first eNB is required to perform the same.
- the adjustment of the group B resource set the second eNB sends its own group B resource set information to the first eNB, and requires the first eNB to perform adjustment of the group B resource set; the first eNB performs group B according to the feedback information of the second eNB.
- Adjustment of resource set, or continue with the second eNB Negotiation is performed to adjust the group B resource set to ensure that the group B resource set is the same between the eNBs.
- the same group B resource is allocated between the neighboring eNBs.
- the network management system can also ensure that the group B resource pools of the neighboring eNBs are used in the group A resource pool and the group B resource pool resources of the eNB. The same group B resource.
- the combination of the network management system and the eNB may also be used to ensure that the group B resource pools of the neighboring eNBs have the same group B resources.
- This embodiment introduces a user equipment, which includes at least an obtaining module 1401 and a processing module 1402.
- the obtaining module 1401 is configured to acquire a discovery signal resource allocated by the base station (eNB) for the user equipment, where the discovery signal resource includes a time-frequency domain resource for transmitting or monitoring the discovery signal; in some scenarios, the foregoing discovery signal resource Also included are code sequence resources for transmitting or listening to discovery signals.
- the obtaining module 1401 is configured to acquire the discovery signal resource allocated by the base station for the user equipment, and includes the following methods:
- the user equipment receives the discovery signal resource set broadcasted by the eNB, the user equipment measures the discovery signal resource and reports the eNB, and the eNB selects a suitable discovery signal resource for the user equipment according to the measurement result of the user equipment;
- the eNB And receiving, by the eNB, the discovery signal resource set sent by the eNB to the user equipment by using the dedicated signaling, and the user equipment measures the discovery signal resource and reports the eNB, and the eNB selects a suitable discovery signal resource for the user equipment according to the measurement result of the user equipment;
- the processing module 1402 is configured to send or monitor the discovery signal according to the discovery signal resource acquired by the acquiring module to perform D2D discovery when the user equipment needs to perform a D2D discovery operation.
- processing module is further configured to send a resource request to the base station to request the base station to allocate a discovery signal resource to the user equipment, where the resource request includes the capability of the user equipment, and the type of the user equipment.
- the user equipment provided in this embodiment may implement the D2D discovery method provided in the foregoing Embodiment 1, and other operations of the base station may refer to the related content in Embodiment 1, and details are not described herein again.
- This embodiment introduces a base station, which includes at least the following modules.
- the configuration module 1501 is configured to allocate a discovery signal resource to the user equipment, where the discovery signal resource includes a time-frequency domain resource for transmitting the discovery signal;
- the discovery signal resource further includes a code sequence resource for transmitting the discovery signal.
- the transceiver module 1502 is configured to notify the user equipment of the discovery signal resource allocated for the user equipment.
- the transceiver module 1502 is configured to send a discovery signal resource set by broadcast; or allocate a discovery signal resource to the user equipment by using dedicated signaling; or
- the discovery signal resource set is sent by the broadcast, and the user equipment receives and reports the discovery signal resource, and then selects a suitable discovery signal resource for the user equipment according to the measurement result of the user equipment; or
- the discovery signal resource set is sent to the user equipment by using the dedicated signaling, and the user equipment measures and reports the discovery signal resource after receiving the information, and then uses the measurement result of the user equipment as the user equipment. Select the appropriate discovery signal resource; or
- the discovery signal resource is allocated to the user equipment through a combination of broadcast and proprietary signaling.
- the transceiver module 1502 broadcasts a set of discovery signal resources, and allocates discovery signal resources to the user equipment through dedicated signaling under the set conditions. Or the transceiver module broadcasts the discovery signal resource set, and allocates the discovery signal resource sequence number indication to the user equipment by using the dedicated signaling, to indicate that the user equipment obtains the discovery signal resource allocated to the user equipment from the discovery signal resource set according to the sequence number.
- the discovery signal resources allocated by the configuration module 1501 for the user equipment include at least one or more of the following:
- Different discovery signal resources are allocated according to the priority of the user equipment.
- the configuration module 1501 is configured to allocate the discovery signal resources to the user equipments in different states, including the group A resources and the group B resources, where the group A resources are the discovery signal resources allocated by the eNB to the connected state user equipment;
- the group B resource is a discovery signal resource allocated by the eNB to the idle state user equipment.
- the configuration module 1501 is further configured to dynamically adjust the resources in the group A resource pool and the group B resource pool, including: the adjustment of the number of resources in the respective resource pools of group A and group B, and the resources in the resource pool. The adjustment of the time-frequency and/or code resources combined with each other.
- the configuration module 1501 is configured to allocate different group A resources according to different positions of the user equipments in the cell according to the connected state. For example, the eNB allocates the cell edge group A resource to the connected state user equipment in the cell edge area, and allocates the cell center group A resource to the connected state user equipment in the cell center area. For the corresponding operation, refer to the corresponding content of Embodiment 1, and details are not described herein again.
- the configuration module 1501 is configured to allocate a cell edge group A resource different from its neighbor cell edge region to the connected state user equipment in the cell edge region.
- the configuration module 1501 is configured to: when the user equipment in the connected state moves to different areas of the cell, Re-assign it to the group A resource belonging to the cell area.
- the configuration module 1501 is further configured to dynamically adjust resources of each of the cell edge group A resource pool and the cell center group A resource pool in the group A resource, including: each cell edge group A resource pool and the cell center group A resource pool The adjustment of the amount of resources and the adjustment of the time-frequency and/or code resources of the resources in the resource pool.
- the configuration module 1501 is configured to first allocate a discovery signal resource to the high priority connected state user equipment when the group A resource is allocated.
- the configuration module 1501 is configured to allocate the group A resources used by the low priority connected state user equipment to the high priority connected state user equipment.
- the configuration module 1501 When the configuration module 1501 allocates the resources of the group A, the configuration module 1501 is further configured to allocate the usable period of the discovery signal resource and the usage manner of the discovery signal according to the application type of the user equipment;
- the discovery period of the signal resource is a duration that the group A resource can be used by the user equipment; the manner in which the discovery signal is used includes the period of sending the discovery signal, the starting specific location or the starting and offset positions, and the effective transmission. Time; or
- the manner in which the discovery signal is used includes deriving information about the manner in which the discovery signal is used.
- the user equipment may end the use of the group A resources in advance.
- the configuration module 1501 is configured to indicate that the user equipment is released when the user equipment sends an indication that the used group A resource usage period expires.
- Group A resource the group A resource is allocated to other user equipment;
- the processing module 1501 processes the renewal application, including agreeing to renew, replacing resources, and releasing resources.
- the transceiver module 1502 is further configured to instruct certain user equipments to release the used Group A resources in any of the following cases:
- the location of the user equipment changes, the signal resources are insufficient, and the use of the discovered signal resources has interference problems.
- the transceiver module 1502 is further configured to receive a message request for pre-release group A resources sent by the user equipment. In this way, after the base station receives the above message request, the configuration module can allocate the group A resource to other user equipments.
- the configuration module 1501 is further configured to allocate the resource set of the group B resource pool to the user equipment in the idle state.
- the transceiver module 1502 is configured to broadcast the group B resource set information by broadcasting to the idle state user equipment belonging to the lower cell.
- the group B resource may be preset by the configuration module for the manner in which the discovery signal is used; the manner in which the discovery signal is used includes the period of transmitting the discovery signal, the starting specific location or the starting and offset positions, and the effective transmission. Time; or
- the manner in which the discovery signal is used includes deriving information about how the discovery signal was used.
- the transceiver module 1502 is further configured to receive a resource request sent by the user equipment and/or other eNB, where the resource request includes the capability of the user equipment, and the type of the user equipment.
- the configuration module 1501 is configured to allocate the discovery signal resource for the user equipment after receiving the resource request.
- a program instructing the associated hardware such as a read-only memory, a magnetic disk, or an optical disk.
- all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits.
- each module/unit in the above embodiment may be implemented in the form of hardware or in the form of a software function module.
- the solution for discovering signal resources in the D2D discovery process provided by the technical solution of the embodiment can be flexibly applied to various scenarios of D2D discovery, and can reduce conflicts in resource usage, thereby improving the reliability of D2D discovery.
- the method for discovering signal resources in the D2D discovery process provided by this embodiment can also facilitate the unified management of the discovery signal resources by the eNB.
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Abstract
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JP2016507979A JP2016519523A (ja) | 2013-04-16 | 2013-12-31 | D2d発見方法及び基地局、ユーザ装置 |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014220603A (ja) * | 2013-05-02 | 2014-11-20 | 株式会社Nttドコモ | ユーザ装置、基地局、発見リソース選択方法、及び制御信号送信方法 |
WO2017026409A1 (ja) * | 2015-08-11 | 2017-02-16 | 京セラ株式会社 | 無線端末 |
JP2017506037A (ja) * | 2014-01-29 | 2017-02-23 | インターデイジタル パテント ホールディングス インコーポレイテッド | デバイスツーデバイス発見またはデバイスツーデバイス通信のためのリソース選択 |
TWI595799B (zh) * | 2015-05-13 | 2017-08-11 | 財團法人工業技術研究院 | 通訊系統、基地台、使用者裝置與裝置對裝置通訊的發現方法 |
JP2018503333A (ja) * | 2015-01-27 | 2018-02-01 | 華為技術有限公司Huawei Technologies Co.,Ltd. | V2vベースのリソース割り当て方法及び装置 |
US9894698B2 (en) | 2015-05-13 | 2018-02-13 | Industrial Technology Research Institute | Communication system, base station, user equipment, and discovery method for device-to-device communication |
US20180234898A1 (en) * | 2015-09-04 | 2018-08-16 | Sony Corporation | Wireless telecommunications system |
US10129902B2 (en) | 2014-03-19 | 2018-11-13 | Interdigital Patent Holdings, Inc. | Device to-device synchronization |
US10530531B2 (en) | 2016-03-15 | 2020-01-07 | Fujitsu Limited | Acknowledgement information feedback apparatus, method and communication system |
Families Citing this family (59)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116865923A (zh) | 2013-01-18 | 2023-10-10 | 华为技术有限公司 | 发现参考信号的发送和检测方法及装置 |
WO2014189338A1 (ko) * | 2013-05-24 | 2014-11-27 | 엘지전자 주식회사 | 무선 통신 시스템에서 측정 수행 방법 및 장치 |
WO2015029952A1 (ja) * | 2013-08-26 | 2015-03-05 | 京セラ株式会社 | ネットワーク装置及びユーザ端末 |
US9854566B2 (en) * | 2013-10-03 | 2017-12-26 | Lg Electronics Inc. | Method and apparatus for using resources for device-to-device operation in wireless communication system |
KR102236020B1 (ko) * | 2013-10-08 | 2021-04-05 | 삼성전자 주식회사 | 무선 통신 시스템의 전송 신호 전력 제어 및 발견 신호 자원 다중화 방법 및 장치 |
JP5864034B2 (ja) * | 2013-10-11 | 2016-02-17 | 京セラ株式会社 | 通信制御方法、ユーザ端末及び通信装置 |
WO2015065015A1 (ko) | 2013-10-28 | 2015-05-07 | 엘지전자 주식회사 | 무선 통신 시스템에서 장치 대 장치 단말의 신호 송수신 방법 및 장치 |
CN104812070B (zh) * | 2014-01-29 | 2020-03-27 | 北京三星通信技术研究有限公司 | 一种ue资源维护和释放的方法和设备 |
KR101851976B1 (ko) | 2014-01-30 | 2018-04-25 | 닛본 덴끼 가부시끼가이샤 | eNodeB, MME, eNodeB의 방법, 및 MME의 방법 |
CN105940752B (zh) * | 2014-01-31 | 2020-08-28 | 索尼公司 | 通信设备及方法 |
CN106031271A (zh) * | 2014-02-20 | 2016-10-12 | 诺基亚通信公司 | 配置物理信道资源用于半双工通信环境中的探测或发现 |
CN104902443B (zh) * | 2014-03-05 | 2018-10-30 | 华为终端有限公司 | 一种通信的方法和设备 |
CN106105345B (zh) * | 2014-03-19 | 2019-08-06 | Lg电子株式会社 | 在无线通信***中由终端实施的d2d(装置到装置)信号发送方法及使用该方法的终端 |
US10660146B2 (en) * | 2014-03-21 | 2020-05-19 | Samsung Electronics Co., Ltd. | Methods and apparatus for device to device synchronization priority |
CN106134237B (zh) * | 2014-03-24 | 2020-03-03 | Lg电子株式会社 | 确定由终端在无线通信***中执行的设备对设备(d2d)操作的小区覆盖范围的方法及使用该方法的终端 |
EP3651486B1 (en) | 2014-05-09 | 2024-04-17 | Sun Patent Trust | Resource allocation for d2d discovery transmission |
WO2015200607A1 (en) * | 2014-06-27 | 2015-12-30 | Sharp Laboratories Of America, Inc. | Resource pool access for device to device communications |
EP2977949A1 (en) * | 2014-07-24 | 2016-01-27 | Samsung Electronics Co., Ltd | Method and device for playing advertisements based on relationship information between viewers |
WO2016045091A1 (en) * | 2014-09-26 | 2016-03-31 | Panasonic Intellectual Property Corporation Of America | Device-to-device wireless communication method and user equipment |
CN105636187B (zh) * | 2014-11-06 | 2019-04-09 | 上海诺基亚贝尔股份有限公司 | 在d2d通信中保证消息完整性检测的方法 |
CN105722056B (zh) * | 2014-12-04 | 2019-04-16 | 上海诺基亚贝尔股份有限公司 | 用于配置模式二的设备至设备通信的方法 |
KR102305115B1 (ko) * | 2015-04-02 | 2021-09-27 | 삼성전자주식회사 | 무선 통신 시스템에서 링크 설정을 위한 장치 및 방법 |
JP6477916B2 (ja) * | 2015-04-10 | 2019-03-06 | 富士通株式会社 | 発見情報の伝送方法、装置及び通信システム |
CN106211023A (zh) * | 2015-04-10 | 2016-12-07 | 中兴通讯股份有限公司 | 一种实现邻近直接发现的方法、基站和终端 |
CN107409313B (zh) * | 2015-04-10 | 2021-09-07 | 富士通株式会社 | 发现信号的传输方法、装置以及通信*** |
EP3297204B1 (en) * | 2015-05-08 | 2020-12-16 | LG Electronics Inc. | Method and device for transmitting and receiving discovery signal of device-to-device communication terminal in wireless communication system |
CN106303912A (zh) | 2015-05-29 | 2017-01-04 | 北京智谷睿拓技术服务有限公司 | 设备间通信控制方法及控制装置 |
CN106303910B (zh) | 2015-05-29 | 2020-01-10 | 北京智谷睿拓技术服务有限公司 | 设备间通信控制方法及控制装置 |
CN106303908B (zh) | 2015-05-29 | 2019-11-29 | 北京智谷睿拓技术服务有限公司 | 设备间通信方法及设备间通信装置 |
CN106341805B (zh) * | 2015-07-17 | 2019-09-06 | 上海交通大学 | 邻居设备发现方法及装置 |
CN105025553B (zh) * | 2015-07-24 | 2018-09-18 | 东南大学 | D2d通信中基于用户设备分组的用户设备发现方法 |
AU2016308701B2 (en) * | 2015-08-14 | 2019-01-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Provisioning transmission pools for inter-carrier prose direct discovery |
CN106488385B (zh) * | 2015-08-31 | 2019-08-30 | 电信科学技术研究院 | 一种设备间***的小区资源分配方法及装置 |
US10674479B2 (en) * | 2015-09-22 | 2020-06-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Resource selection and reselection for direct communications between devices |
CN106937360A (zh) * | 2015-12-29 | 2017-07-07 | 中兴通讯股份有限公司 | 设备到设备发现方法、小基站节能方法及小基站、宏基站 |
CN105704825B (zh) * | 2016-01-19 | 2019-05-31 | 重庆邮电大学 | D2d中基于自适应随机接入的动态发现资源分配***及方法 |
EP3364699B1 (en) * | 2016-02-05 | 2021-04-07 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Peer-to-peer data transmission method, apparatus, and system |
WO2017166245A1 (zh) * | 2016-03-31 | 2017-10-05 | 华为技术有限公司 | 一种资源管理方法及相关设备 |
KR20180132712A (ko) * | 2016-04-11 | 2018-12-12 | 가부시키가이샤 엔티티 도코모 | 유저장치 및 신호 송신 방법 |
CN107295496B (zh) * | 2016-04-13 | 2019-12-20 | 普天信息技术有限公司 | 载波间终端直通d2d发现资源冲突的处理方法和装置 |
CN106793090B (zh) * | 2016-07-29 | 2018-10-16 | 北京展讯高科通信技术有限公司 | D2d直接通信资源的选择方法及*** |
GB2552792B8 (en) * | 2016-08-08 | 2019-01-30 | Tcl Communication Ltd | Methods and devices for resource selection for direct transmissions between wireless devices in a wireless communication system |
BR112019002558A2 (pt) * | 2016-08-09 | 2019-05-21 | Telefonaktiebolaget Lm Ericsson (Publ) | método e dispositivo sem fio para detecção de recursos |
CN106162737B (zh) * | 2016-08-09 | 2019-05-17 | 北京交通大学 | 一种基于自适应拥塞控制的d2d设备自主发现方法 |
CN110234139B (zh) | 2016-08-09 | 2020-06-16 | 华为技术有限公司 | V2x消息发送方法、装置、***及介质 |
US11696218B2 (en) | 2016-10-21 | 2023-07-04 | Qualcomm Incorporated | Multiplexing initial access and data transmissions in assisted millimeter wave systems |
US20190007954A1 (en) * | 2017-06-30 | 2019-01-03 | Hon Hai Precision Industry Co., Ltd. | Resource scheduling method of wireless communication system |
EP3657884B1 (en) | 2017-08-08 | 2022-04-13 | Huawei Technologies Co., Ltd. | Service data transmission method and apparatus |
EP3666031A1 (en) * | 2017-08-11 | 2020-06-17 | Telefonaktiebolaget LM Ericsson (publ) | Radio network node, wireless device and methods performed therein |
US10797838B2 (en) * | 2017-09-29 | 2020-10-06 | Electronics And Telecommunications Research Institute | Apparatus and method for managing radio resources in mobile communication system |
JP2021508185A (ja) * | 2017-11-03 | 2021-02-25 | オッポ広東移動通信有限公司Guangdong Oppo Mobile Telecommunications Corp., Ltd. | D2d通信におけるリソース選択方法及び端末機器 |
WO2019157726A1 (zh) | 2018-02-14 | 2019-08-22 | Oppo广东移动通信有限公司 | 资源上报的方法、终端设备和网络设备 |
EP3928436B1 (en) | 2019-03-12 | 2024-02-14 | Google LLC | User-equipment coordination set beam sweeping |
US10893572B2 (en) | 2019-05-22 | 2021-01-12 | Google Llc | User-equipment-coordination set for disengaged mode |
BR112020016223A2 (pt) * | 2019-07-25 | 2021-03-23 | Google Llc | reagrupamento de conjunto de coordenação de equipamento de usuário |
WO2021029879A1 (en) | 2019-08-13 | 2021-02-18 | Google Llc | User-equipment-coordination-set control aggregation |
WO2021054964A1 (en) | 2019-09-19 | 2021-03-25 | Google Llc | User-equipment-coordination-set selective participation |
CN113068172B (zh) * | 2020-01-02 | 2022-06-17 | 维沃移动通信有限公司 | 触发发现的方法、终端设备及网络设备 |
CN111934835A (zh) * | 2020-08-06 | 2020-11-13 | 中兴通讯股份有限公司 | 一种资源选择、指示方法、装置、终端和存储介质 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102547984A (zh) * | 2012-02-23 | 2012-07-04 | 华为技术有限公司 | 一种设备到设备通信中寻呼的方法及装置 |
CN102547871A (zh) * | 2012-02-07 | 2012-07-04 | 华为技术有限公司 | 一种d2d通信中的资源协商方法及设备 |
CN102857901A (zh) * | 2012-09-12 | 2013-01-02 | 中兴通讯股份有限公司 | 终端的发现、发现处理方法及装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8379547B2 (en) * | 2009-05-15 | 2013-02-19 | Telefonaktiebolaget L M Ericsson (Publ) | Resource selection for transmission of multiple ACK/NACK on PUCCH channel |
US8331965B2 (en) | 2009-06-12 | 2012-12-11 | Qualcomm Incorporated | Methods and apparatus for controlling resource use in a wireless communications system |
US9485069B2 (en) * | 2010-04-15 | 2016-11-01 | Qualcomm Incorporated | Transmission and reception of proximity detection signal for peer discovery |
US8812676B2 (en) * | 2010-09-03 | 2014-08-19 | Qualcomm Incorporated | Methods and apparatus to select and to reselect a resource for peer discovery in peer-to-peer networks |
US20130010618A1 (en) * | 2011-07-07 | 2013-01-10 | Qualcomm Incorporated | Methods and apparatus for providing flexibility in peer discovery range and frequency of updates |
US20130051277A1 (en) | 2011-08-30 | 2013-02-28 | Renesas Mobile Corporation | Method and apparatus for allocating resources for device-to-device discovery |
WO2013030773A1 (en) | 2011-08-30 | 2013-03-07 | Renesas Mobile Corporation | Method and apparatus for allocating device-to-device discovery portion |
GB2496153B (en) * | 2011-11-02 | 2014-07-02 | Broadcom Corp | Device-to-device communications |
GB2497752B (en) * | 2011-12-19 | 2014-08-06 | Broadcom Corp | Apparatus and methods for supporting device-to-device discovery in cellular communications |
US9433025B2 (en) * | 2012-02-10 | 2016-08-30 | Lg Electronics Inc. | D2D communication method according to D2D service type as well as D2D application type, and apparatus for same |
GB2501088B (en) * | 2012-04-11 | 2014-11-12 | Broadcom Corp | Methods and apparatus for transmitting and/or controlling device-to-device discovery signals |
US9143984B2 (en) * | 2012-04-13 | 2015-09-22 | Intel Corporation | Mapping of enhanced physical downlink control channels in a wireless communication network |
US9084241B2 (en) * | 2012-05-21 | 2015-07-14 | Qualcomm Incorporated | Methods and apparatus for determining available resources for D2D communications |
US9154267B2 (en) * | 2012-07-02 | 2015-10-06 | Intel Corporation | Sounding reference signal (SRS) mechanism for intracell device-to-device (D2D) communication |
WO2014019618A1 (en) * | 2012-08-01 | 2014-02-06 | Nokia Siemens Networks Oy | Methods, computer program products and apparatuses enabling to improve network controlled discovery in mobile communication networks |
-
2013
- 2013-04-16 CN CN201310130874.4A patent/CN104113851B/zh active Active
- 2013-12-31 WO PCT/CN2013/091246 patent/WO2014169695A1/zh active Application Filing
- 2013-12-31 EP EP13882244.0A patent/EP2975884B1/en active Active
- 2013-12-31 JP JP2016507979A patent/JP2016519523A/ja active Pending
- 2013-12-31 US US14/784,651 patent/US9843918B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102547871A (zh) * | 2012-02-07 | 2012-07-04 | 华为技术有限公司 | 一种d2d通信中的资源协商方法及设备 |
CN102547984A (zh) * | 2012-02-23 | 2012-07-04 | 华为技术有限公司 | 一种设备到设备通信中寻呼的方法及装置 |
CN102857901A (zh) * | 2012-09-12 | 2013-01-02 | 中兴通讯股份有限公司 | 终端的发现、发现处理方法及装置 |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014220603A (ja) * | 2013-05-02 | 2014-11-20 | 株式会社Nttドコモ | ユーザ装置、基地局、発見リソース選択方法、及び制御信号送信方法 |
US9756555B2 (en) | 2013-05-02 | 2017-09-05 | Ntt Docomo, Inc. | User apparatus, base station, discovery resource selection method, and control signal transmission method |
US11910362B2 (en) | 2014-01-29 | 2024-02-20 | Interdigital Patent Holdings, Inc. | Resource selection for device to device discovery or communication |
JP2017506037A (ja) * | 2014-01-29 | 2017-02-23 | インターデイジタル パテント ホールディングス インコーポレイテッド | デバイスツーデバイス発見またはデバイスツーデバイス通信のためのリソース選択 |
US10932231B2 (en) | 2014-01-29 | 2021-02-23 | Interdigital Patent Holdings, Inc. | Resource selection for device to device discovery or communication |
US10159061B2 (en) | 2014-01-29 | 2018-12-18 | Interdigital Patent Holdings, Inc. | Resource selection for device to device discovery or communication |
US10129902B2 (en) | 2014-03-19 | 2018-11-13 | Interdigital Patent Holdings, Inc. | Device to-device synchronization |
US11546923B2 (en) | 2014-03-19 | 2023-01-03 | Interdigital Patent Holdings, Inc. | Device-to-device synchronization |
JP2018503333A (ja) * | 2015-01-27 | 2018-02-01 | 華為技術有限公司Huawei Technologies Co.,Ltd. | V2vベースのリソース割り当て方法及び装置 |
US10368356B2 (en) | 2015-01-27 | 2019-07-30 | Huawei Technologies Co., Ltd. | V2V-based resource allocation method and apparatus |
US9894698B2 (en) | 2015-05-13 | 2018-02-13 | Industrial Technology Research Institute | Communication system, base station, user equipment, and discovery method for device-to-device communication |
TWI595799B (zh) * | 2015-05-13 | 2017-08-11 | 財團法人工業技術研究院 | 通訊系統、基地台、使用者裝置與裝置對裝置通訊的發現方法 |
WO2017026409A1 (ja) * | 2015-08-11 | 2017-02-16 | 京セラ株式会社 | 無線端末 |
US20180234898A1 (en) * | 2015-09-04 | 2018-08-16 | Sony Corporation | Wireless telecommunications system |
US10595246B2 (en) * | 2015-09-04 | 2020-03-17 | Sony Corporation | Wireless telecommunications system |
US20200213920A1 (en) * | 2015-09-04 | 2020-07-02 | Sony Corporation | Wireless telecommunications system |
US10952111B2 (en) | 2015-09-04 | 2021-03-16 | Sony Corporation | Wireless telecommunications system |
US10530531B2 (en) | 2016-03-15 | 2020-01-07 | Fujitsu Limited | Acknowledgement information feedback apparatus, method and communication system |
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EP2975884A1 (en) | 2016-01-20 |
CN104113851B (zh) | 2019-04-16 |
JP2016519523A (ja) | 2016-06-30 |
US20160057604A1 (en) | 2016-02-25 |
US9843918B2 (en) | 2017-12-12 |
EP2975884A4 (en) | 2016-04-27 |
EP2975884B1 (en) | 2020-02-26 |
CN104113851A (zh) | 2014-10-22 |
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