WO2014154085A1 - Procédé et dispositif de transmission d'informations de réponse d2d - Google Patents

Procédé et dispositif de transmission d'informations de réponse d2d Download PDF

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Publication number
WO2014154085A1
WO2014154085A1 PCT/CN2014/072959 CN2014072959W WO2014154085A1 WO 2014154085 A1 WO2014154085 A1 WO 2014154085A1 CN 2014072959 W CN2014072959 W CN 2014072959W WO 2014154085 A1 WO2014154085 A1 WO 2014154085A1
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WIPO (PCT)
Prior art keywords
discovery signal
response information
feedback
resources occupied
receiving end
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PCT/CN2014/072959
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English (en)
Chinese (zh)
Inventor
陈文洪
高秋彬
彭莹
赵锐
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电信科学技术研究院
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Publication of WO2014154085A1 publication Critical patent/WO2014154085A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a D2D (Device to Device) response information transmission method and device.
  • D2D Device to Device
  • the embodiment of the present application provides a method and a device for transmitting D2D response information, so that the base station device or the transmitting UE knows whether D2D communication can be performed between the transmitting UE and the receiving UE.
  • the embodiment of the present application provides a device to device D2D response information transmission method, including:
  • the receiving end user equipment UE determines the physical resource occupied by the D2D discovery signal
  • the receiving end UE generates D2D response information according to the receiving result of the D2D discovery signal;
  • the receiving end UE determines a feedback resource occupied by the D2D response information, and sends the D2D response information on the feedback resource.
  • An embodiment of the present application provides a user equipment UE, including:
  • a first determining module configured to determine a physical resource occupied by the device to the device D2D discovery signal; a first receiving module, configured to receive a D2D discovery signal on the physical resource; and a generating module, configured to generate, according to the received result of the D2D discovery signal And a second determining module, configured to determine a feedback resource occupied by the D2D response information, where the first sending module is configured to send the D2D response information on the feedback resource.
  • the embodiment of the present application provides a device to device D2D response information transmission method, including: the base station device determines a feedback resource occupied by the D2D response information corresponding to the D2D discovery signal;
  • the base station device receives D2D response information that is sent by the receiving end UE on the feedback resource, where the D2D response information is a receiving result that the receiving end UE receives the D2D discovery signal according to the physical resource occupied by the D2D discovery signal. Generated and sent.
  • An embodiment of the present application provides a base station device, including:
  • a third determining module configured to determine a feedback resource occupied by the D2D response information corresponding to the D2D discovery signal
  • a second receiving module configured to receive D2D response information that is sent by the receiving end UE on the feedback resource, where the D2D response information is that the receiving end UE receives the D2D discovery signal according to the physical resource occupied by the D2D discovery signal. The received result is generated and sent.
  • An embodiment of the present application provides a device to device D2D response information transmission method, including: a sending end UE determines a D2D response signal corresponding to the D2D response information.
  • the transmitting end UE receives the D2D response information that is sent by the receiving end UE on the feedback resource, where the D2D response information is that the receiving end UE receives the D2D discovery signal according to the physical resource occupied by the D2D discovery signal. The result is generated and sent.
  • An embodiment of the present application provides a user equipment, including:
  • a fourth determining module configured to determine a feedback resource occupied by the D2D response information corresponding to the D2D discovery signal
  • a third receiving module configured to receive D2D response information that is sent by the receiving end UE on the feedback resource, where the D2D response information is that the receiving end UE receives the D2D discovery signal according to the physical resource occupied by the D2D discovery signal. The received result is generated and sent.
  • the embodiment of the present application has at least the following advantages:
  • the receiving end UE when receiving the D2D discovery signal, the receiving end UE generates D2D response information according to the receiving result of the D2D discovery signal, and is on the feedback resource. Transmitting the D2D response information corresponding to the D2D discovery signal, so that the base station device or the transmitting end UE can know whether D2D communication can be performed between the transmitting end UE and the receiving end UE, and then complete D2D communication pairing between the transmitting end UE and the receiving end UE. . BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic flowchart of a method for transmitting D2D response information when a receiving end UE is processed in the first embodiment of the present application;
  • FIG. 2 is a schematic flowchart of a method for transmitting D2D response information when a base station device is processed according to Embodiment 1 of the present application
  • 3 is a schematic flowchart of a method for transmitting D2D response information when a UE is processed by a transmitting end UE according to Embodiment 1 of the present application
  • FIG. 4 is a schematic flow chart of a method for transmitting D2D response information proposed in Embodiment 2 of the present application;
  • FIG. 5 is a schematic flow chart of a method for transmitting D2D response information proposed in Embodiment 3 of the present application;
  • FIG. 6 is a schematic structural diagram of a user equipment according to Embodiment 4 of the present application.
  • FIG. 7 is a schematic structural diagram of a base station device according to Embodiment 5 of the present application.
  • FIG. 8 is a schematic structural diagram of another user equipment according to Embodiment 6 of the present application
  • FIG. 9 is a schematic structural diagram of a user equipment according to Embodiment 7 of the present application
  • FIG. 10 is a schematic structural diagram of a base station device according to Embodiment 8 of the present application.
  • FIG. 11 is a schematic structural diagram of another user equipment according to Embodiment 9 of the present application. Mode for carrying out the invention
  • the D2D technology (that is, the terminal eNB) is a method in which a neighboring UE can directly transmit data through a direct link within a short range, and does not need to be forwarded through a central node (ie, an eNB).
  • the short-distance communication characteristics and direct communication mode of D2D technology have the following advantages: (1) UE short-distance direct communication can achieve higher data rate, lower delay and lower power consumption; (2) using the network Short-range characteristics of widely distributed UE and D2D communication links, Effective use of spectrum resources can be realized; (3) D2D direct communication can adapt to local data sharing requirements such as wireless P2P services, and provide flexible adaptive data services; (4) D2D direct communication can utilize the number of networks A large and widely distributed UE that expands the coverage of the network.
  • the D2D technology refers to the D2D communication process that is controlled by the LTE system in the LTE licensed band. It fully utilizes the advantages of the D2D technology, and the control of the LTE system can overcome the traditional D2D technology. Some problems, such as uncontrollable interference.
  • the D2D communication can also be performed on the non-LTE licensed frequency band or without the control of the LTE system. At this time, the D2D communication between the UEs is completed by the autonomous organization, and no base station equipment assists the control.
  • the D2D communication process includes D2D discovery and D2D communication; the UE discovers other UEs in its vicinity through the D2D discovery signal, and performs data communication after establishing the D2D connection; within the network coverage, the resources used by the D2D discovery signal are notified by the base station device.
  • the transmitting UE and the receiving UE are enabled to enable the transmitting UE and the receiving UE to perform discovery using resources configured by the base station device.
  • the resources used by the D2D discovery signal may also be predefined resources, or may be resources allocated by one of the UEs.
  • the transmitting end UE sends a D2D discovery signal on the resource configured by the base station device, and the multiple receiving end UEs can simultaneously receive the D2D discovery signal on the resource to discover the transmitting end UE. In addition, the transmitting end UE can also configure the resource in the base station device. On other resources, the D2D discovery signals of other UEs are received. The transmitting UE needs to transmit the D2D discovery signal on one OFDM (Orthogonal Frequency Division Multiplexing) symbol, and needs to receive the D2D discovery signal of other UEs on at least one other OFDM symbol.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the UE Due to the limitation of the radio frequency, the UE needs a certain conversion time (20 us) between transmitting the D2D discovery signal and receiving the D2D discovery signal. Therefore, the transmitting UE sends the OFDM symbol on one OFDM symbol.
  • the OFDM symbols on both sides of the OFDM symbol cannot be used to receive the D2D discovery signal of other UEs, but only serve as a guard interval for transceiving and translating.
  • An embodiment of the present application provides a method for transmitting D2D response information, which may be applied to a system including a base station device (in this case, a communication process between a transmitting UE, a receiving UE, and a base station device) or not including a base station device.
  • the system in this case, the communication process between the sender UE and the receiver UE; further, the method for transmitting D2D response information in the embodiment of the present application can enable the receiver UE to receive the D2D discovery signal.
  • the method for transmitting D2D response information includes the following steps: Step 101: A UE (ie, a receiving UE) determines a physical resource occupied by a D2D discovery signal.
  • the UE determines the physical resource occupied by the D2D discovery signal, and specifically includes: the UE receives the indication information that the D2D discovery signal from the base station device occupies the physical resource, and uses the indication information to determine the physical resource occupied by the D2D discovery signal; or The UE (the receiving end UE) receives the indication information that the D2D discovery signal from the transmitting end UE occupies the physical resource, and uses the indication information to determine the physical resource occupied by the D2D discovery signal; or, the UE detects whether the physical resource is separately detected on multiple physical resources. A D2D discovery signal is received to determine the physical resources occupied by the D2D discovery signal.
  • the base station device needs to configure the physical resource occupied by the transmitting end UE to send the D2D discovery signal, and notify the sending end UE and the receiving end UE of the indication information of the physical resource occupied by the D2D discovery signal; Determining, by the UE, the physical resource occupied by the D2D discovery signal, and then transmitting the D2D discovery signal; The receiving UE determines the physical resource occupied by the D2D discovery signal by using the indication information, and then receives the D2D discovery signal.
  • the transmitting end UE may configure the physical resource occupied by the D2D discovery signal, send the D2D discovery signal on the physical resource, and notify the receiving and receiving the indication information of the physical resource occupied by the D2D discovery signal.
  • the UE is used by the receiving end UE to determine the physical resource occupied by the D2D discovery signal, and then receives the D2D discovery signal.
  • the base station device needs to configure the physical resource occupied by the transmitting end UE to send the D2D discovery signal, and notify the sending end UE of the indication information of the physical resource occupied by the D2D discovery signal;
  • the indication information determines the physical resource occupied by the D2D discovery signal, and then transmits the D2D discovery signal.
  • the receiving end UE determines whether the D2D discovery signal is received on the plurality of physical resources to determine the physical resource occupied by the D2D discovery signal.
  • Step 102 The UE receives the D2D discovery signal on the physical resource occupied by the D2D discovery signal.
  • the transmitting end UE needs to send the D2D discovery signal on the physical resource occupied by the D2D discovery signal, and the receiving end UE needs to receive the D2D discovery signal on the physical resource occupied by the D2D discovery signal.
  • Step 103 The UE generates D2D response information according to the reception result of the D2D discovery signal.
  • the D2D response information includes but is not limited to one or any combination of the following:
  • the identification information of the UE ie, the transmitting end UE
  • the identification information may be an index of all the UEs that the transmitting end UE needs to discover at the receiving end UE, for example, the receiving end UE is configured by the base station device to discover
  • the four-bit information may be used to indicate the identification information corresponding to the four UEs.
  • the identifier information may also be a D2D-dedicated ID configured by the base station device to the transmitting UE, that is, the base station device may be a UE for each transmitting end. Configure the appropriate D2D ID.
  • Received power strength information obtained by measuring the D2D discovery signal for example, after receiving the D2D discovery signal successfully, the receiving UE can obtain received power strength information by measuring the received D2D discovery signal, and the receiving The power strength information is similar to the RSRP (Reference Signal Received Power) information in the existing system.
  • RSRP Reference Signal Received Power
  • a request for establishing a D2D communication connection between the UE (ie, the receiving UE) and the UE transmitting the D2D discovery signal (ie, the transmitting UE) needs to be different from the communication connection request of the existing cellular network.
  • the D2D response information may include multiple pieces of content, which are multiple content corresponding to one sending end UE, or multiple content corresponding to multiple sending end UEs; for this, when D2D response information
  • the process of generating the D2D response information by the UE includes: the UE generates D2D response information including the content for each content; or, the UE jointly encodes the multiple content, and generates the content for the jointly encoded content.
  • the UE performs a concatenation process on the multiple content, and generates D2D response information including the content for the concatenated processed content; wherein, the UE may perform multiple content in the order indicated by the base station device A plurality of contents are subjected to cascading processing in a cascading process or in an order determined based on identification information of the D2D discovery signal.
  • Step 104 The UE determines the feedback resource occupied by the D2D response information, and sends the D2D response information on the feedback resource, that is, the D2D response information is sent to the base station device or the sending end UE.
  • the UE ie, the receiving UE determines the feedback resource occupied by the D2D response information, which includes but is not limited to the following manners:
  • Manner 1 The UE receives the downlink signaling from the base station device for configuring the feedback resource occupied by the D2D response information, and obtains the feedback resource occupied by the D2D response information from the downlink signaling.
  • the base station device may notify the UE of the feedback resource information occupied by the D2D response information, such as the high layer signaling or the DCI (downlink control information) signaling, by the UE from the high layer signaling or the DCI signaling.
  • the feedback resources occupied by the D2D response information are obtained. For example, if the D2D response information needs to be sent in the manner of a PUCCH (Physical Uplink Control Channel), the base station device can configure the PUCCH resource used by the corresponding PUCCH format by using the high layer signaling; If the Uplink Shared Channel is transmitted in the manner of the physical uplink shared channel, the base station device may indicate the resource occupied by the corresponding PUSCH in the scheduled DCI.
  • PUCCH Physical Uplink Control Channel
  • Manner 2 The UE calculates the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal by using the sequence information of the physical resource and/or the physical resource occupied by the D2D discovery signal.
  • the feedback resource occupied by the L D2D response information may be represented by a resource index n_response.
  • n_response can represent the PUCCH resource occupied by the D2D response information
  • the starting position of the physical resource occupied by the n_response and the D2D discovery signal ie, n_ID
  • the sequence identifier of the physical resource occupied by the D2D discovery signal ie, n_ID
  • n_response f (n_low, n_ID).
  • the N_ID represents the same resource Number of sequence multiplexing
  • said N_dis is the number of PRBs occupied by each D2D discovery signal.
  • the N_res is the total size of the feedback resources occupied by the D2D response information.
  • the floor function is rounded down and the round function is rounded off.
  • n_response is an index of a resource, or represents a starting position of a resource, or a resource. Number, each resource number maps a resource.
  • Manner 3 The UE obtains the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal by using the resource information carried in the D2D discovery signal.
  • the feedback resource occupied by the D2D response information is determined by using the n_response carried in the D2D discovery signal;
  • the resource information carried in the information includes the starting position of the feedback resource occupied by the D2D response information
  • the starting position carried in the D2D discovery signal and related information are used to determine the feedback resource occupied by the D2D response information.
  • the UE receives the control signaling from the sending UE for configuring the feedback resource occupied by the D2D response information, and obtains the feedback resource occupied by the D2D response information from the control signaling.
  • the transmitting end UE may notify the receiving end UE of the feedback resource information occupied by the D2D response information by using the high layer signaling or the DCI signaling, and the receiving end UE obtains the D2D response from the high layer signaling or the DCI signaling.
  • Feedback resources used by the information For example, if the D2D response information needs to be sent in the manner of a PUCCH, the transmitting end UE may configure the PUCCH resource used by the corresponding PUCCH format by using the high layer signaling; The information needs to be sent in the manner of the PUSCH, and the transmitting end UE can indicate the resources occupied by the corresponding PUSCH in the scheduling DCI.
  • the UE sends the D2D response information corresponding to the D2D discovery signal on the feedback resource, including but not limited to the following:
  • the UE sends the D2D response information corresponding to the D2D discovery signal to the base station device at a time on the feedback resource; that is, the UE sends the D2D response information corresponding to the D2D discovery signal to the base station device.
  • the receiving UE collects the D2D response information corresponding to the D2D discovery signal by using the PUCCH resource after successfully discovering the transmitting UE (ie, the feedback information of the successfully received D2D discovery signal and the measured received power strength). Information) is sent to the base station device.
  • the UE In the second mode, the UE (ie, the receiving UE) periodically sends the D2D response information corresponding to the D2D discovery signal on the feedback resource until the D2D discovery signal is successfully received (that is, the UE that successfully sends the D2D discovery signal is successfully found); that is, the UE is in the UE.
  • the D2D response information corresponding to the D2D discovery signal is periodically sent to the base station device or the transmitting end UE, until the UE transmitting the D2D discovery signal is successfully found; for example, the UE receives the D2D discovery signal at the physical resource configured by the base station device, If the D2D discovery signal is not successfully received, the D2D response information corresponding to the D2D discovery signal is periodically fed back (ie, the feedback information of the D2D discovery signal is not successfully received), and once the UE successfully receives the D2D discovery signal, the D2D will be successfully received.
  • the feedback information of the discovery signal is sent to the base station device, and the corresponding feedback resource is released.
  • the UE In the third mode, the UE (ie, the receiving UE) periodically transmits the D2D response information corresponding to the D2D discovery signal on the feedback resource after successfully receiving the D2D discovery signal; that is, the UE periodically responds to the D2D discovery signal on the feedback resource.
  • the D2D response information is sent to the base station device or the transmitting end UE. For example, whether the UE successfully receives the D2D discovery signal, the PUCCH format 2 (format 2) is periodically reported in the PUCCH. D2D response information.
  • the UE (ie, the receiving UE) sends the D2D response information corresponding to the D2D discovery signal on the feedback resource after receiving the response triggering command from the base station device or the transmitting UE; that is, the UE receives the base station device or the sending UE.
  • the D2D response information corresponding to the D2D discovery signal is sent to the base station device or the transmitting end UE on the feedback resource; for example, the base station device schedules the PUSCH transmission for transmitting the D2D response information by using the DCI, and the UE passes the indicated PUSCH.
  • the resource feedback D2D response information or, the base station device triggers the UE to perform layer reporting of the D2D response information by using a specific event, and the UE feeds back the D2D response information after being triggered by the specific event.
  • the UE may send the D2D response information through the physical layer signaling on the feedback resource.
  • the UE may send the D2D response information through the high layer signaling on the feedback resource.
  • the base station device needs to receive the D2D response information from the UE on the corresponding feedback resource, and when the base station device learns from the D2D response information that the receiving UE has successfully received the D2D discovery signal of the sending UE, Some or all of the content of the D2D response information is notified to the transmitting end UE; after receiving the notification, the transmitting end UE may stop transmitting the D2D discovery signal.
  • the foregoing process is a process for the receiving end UE.
  • the processing of the sending end UE and the processing of the base station device may further include the following processes:
  • FIG. 2 it is a schematic diagram of a processing procedure for a base station device.
  • Step 201 The base station device determines the physical resource occupied by the transmitting end UE to send the D2D discovery signal, and notifies the sending end UE of the indication information of the physical resource occupied by the D2D discovery signal, and the transmitting end UE determines the D2D discovery signal by using the indication information.
  • the occupied physical resource, and the D2D discovery signal is sent on the physical resource occupied by the D2D discovery signal.
  • the base station device may further notify the receiving end UE of the indication information of the physical resource occupied by the D2D discovery signal, and the receiving end UE determines the physical resource occupied by the D2D discovery signal by using the indication information, and the physics occupied by the D2D discovery signal.
  • the D2D discovery signal is received on the resource.
  • Step 202 The base station device determines a feedback resource that is occupied by the D2D response information corresponding to the D2D discovery signal, and receives the D2D response information that is sent by the receiving end UE on the feedback resource, where the D2D response information is The receiving result of receiving the D2D discovery signal on the physical resource occupied by the D2D discovery signal is generated and transmitted.
  • the process for the base station device to determine the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal includes, but is not limited to, the following manner: the base station device determines, irrespective of the sequence information of the physical resource and/or the physical resource occupied by the D2D discovery signal.
  • the resource is used as a feedback resource for the D2D response information corresponding to the D2D discovery signal; or the base station device uses the sequence information of the physical resource and/or the physical resource occupied by the D2D discovery signal to calculate the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal.
  • the base station device determines, as the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal, the resource that is not related to the sequence information of the physical resource and/or the physical resource occupied by the D2D discovery signal, the base station device determines the D2D discovery signal corresponding to the After receiving the feedback resource occupied by the D2D response information, the base station device may further send the indication information of the feedback resource occupied by the D2D response information to the receiving end UE, and the receiving end UE uses the indication information to determine the feedback resource occupied by the D2D response information.
  • the base station device sends the indication information of the feedback resource occupied by the D2D response information to the receiving end UE through the downlink signaling; or the base station device sends the indication information of the feedback resource occupied by the D2D response information to the sending end UE,
  • the transmitting end UE carries the indication information of the feedback resource occupied by the D2D response information in the D2D discovery signal and sends the indication information to the receiving end UE.
  • FIG. 3 it is a schematic diagram of a processing procedure for a UE at a transmitting end.
  • Step 301 The sending end UE determines the physical resource occupied by the D2D discovery signal, and sends the D2D discovery signal on the physical resource occupied by the D2D discovery signal.
  • the transmitting end UE may notify the receiving end UE of the indication information of the physical resource occupied by the D2D discovery signal, and the receiving end UE determines the physical resource occupied by the D2D discovery signal by using the indication information, and the physics occupied by the D2D discovery signal.
  • the D2D discovery signal is received on the resource.
  • Step 302 The transmitting end UE determines the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal, and receives the D2D response information sent by the receiving end UE on the feedback resource.
  • the D2D response information is the receiving end.
  • the UE generates and transmits the received result of receiving the D2D discovery signal on the physical resource occupied by the D2D discovery signal.
  • the sending end UE determines the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal, including but not limited to the following manner: The sending end UE determines that the physical resource and/or the sequence information of the physical resource occupied by the D2D discovery signal is independent. The resource is used as the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal; or the transmitting end UE calculates the feedback of the D2D response information corresponding to the D2D discovery signal by using the sequence information of the physical resource and/or the physical resource occupied by the D2D discovery signal. Resources.
  • the transmitting end UE determines the resource that is not related to the sequence information of the physical resource and/or the physical resource occupied by the D2D discovery signal as the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal.
  • the transmitting end UE determines the D2D discovery signal.
  • the UE may also send the indication information of the feedback resource occupied by the D2D response information to the receiving UE, and the receiving UE determines the D2D response information by using the indication information. Feedback resources.
  • the sending end UE uses the feedback signaling occupied by the D2D response information by using control signaling.
  • the indication information of the source is sent to the receiving end UE; or the transmitting end UE carries the indication information of the feedback resource occupied by the D2D response information in the D2D discovery signal and sends the indication information to the receiving end UE.
  • the receiving UE when receiving the D2D discovery signal, the receiving UE generates D2D response information according to the receiving result of the D2D discovery signal, and sends the D2D response information corresponding to the D2D discovery signal on the feedback resource, so that the base station device or the transmitting UE It can be known whether D2D communication can be performed between the transmitting end UE and the receiving end UE, and the proximity situation and channel quality between the transmitting end UE and the receiving end UE are known, and then the D2D communication pairing between the transmitting end UE and the receiving end UE is completed. , scheduling of D2D communication. Further, the base station device may send the D2D response information to the sending end UE, so that the sending end UE discovers another UE while being discovered, and may initiate a D2D communication request.
  • the technical solution provided by the embodiment of the present application is further described by taking the UE A as the sender UE and the UE B as the receiver UE as an example.
  • a second embodiment of the present application provides a method for transmitting D2D response information. As shown in FIG. 4, the method includes the following steps:
  • Step 401 The base station device needs to configure the physical resource occupied by the UE A to send the D2D discovery signal, and notify the UE A and the UE B of the indication information of the physical resource occupied by the D2D discovery signal. Thereafter, the UE A determines the indication information by using the indication information.
  • the D2D discovers the physical resources occupied by the signal, and then can transmit the D2D discovery signal; and the UE B uses the indication information to determine the physical resource occupied by the D2D discovery signal, and then can receive the D2D discovery signal.
  • the physical resource occupied by the D2D discovery signal is a periodic physical resource in the time domain, so that the UE A periodically sends the D2D discovery signal, and the UE B periodically receives the D2D discovery signal.
  • the base station device indicates the physical resources occupied by the D2D discovery signal.
  • the feedback resource occupied by the D2D response information may be simultaneously indicated, and the physical resource occupied by the D2D discovery signal and the feedback resource occupied by the D2D response information may be indicated together to the UE B, or separately indicated to the UE B;
  • the D2D response information is reported in the format of the PUCCH, and the corresponding periodic PUCCH resource is configured by the base station device.
  • the content of the PUCCH resource configured by the base station device includes: a subframe period, a start subframe, a frequency domain and a code domain in the subframe. Resource location, etc.
  • Step 402 The UE A sends a D2D discovery signal on the physical resource occupied by the D2D discovery signal, and the UE B receives the D2D discovery signal on the physical resource occupied by the D2D discovery signal.
  • Step 403 The UE B generates D2D response information according to the received result of the D2D discovery signal, where the D2D response information includes whether the UE B successfully receives the 1-bit feedback information of the D2D discovery signal of the UE A.
  • the D2D response information includes whether the UE B successfully receives the 1-bit feedback information of the D2D discovery signal of the UE A.
  • Step 404 The UE B determines that the feedback resource occupied by the D2D response information is the feedback resource indicated by the base station device, and periodically feeds back the D2D response information on the feedback resource indicated by the base station device, where the D2D response information includes the UE.
  • the response information corresponding to all the D2D discovery signals that need to be found, and the D2D response information corresponding to the multiple D2D discovery signals are cascaded according to the order of the identification index information of the D2D discovery signal, and then fed back in the same PUCCH format.
  • the priority of the D2D discovery signal needs to be lower, or the priority of the D2D discovery signal is lower, or the index is lower.
  • the base station device receives the D2D response information on the corresponding feedback resource, if After the base station device finds that the UE B has correctly detected the information of a certain UE A in the D2D response information, the base station device also needs to notify the UE A that the information is successfully found by the UE B.
  • a third embodiment of the present application provides a method for transmitting D2D response information. As shown in FIG. 5, the method includes the following steps:
  • Step 501 The base station device needs to configure the physical resource occupied by the UE A to send the D2D discovery signal, and notify the UE A and the UE B of the indication information of the physical resource occupied by the D2D discovery signal. Thereafter, the UE A determines the indication information by using the indication information.
  • the D2D discovers the physical resources occupied by the signal, and then can transmit the D2D discovery signal; and the UE B uses the indication information to determine the physical resource occupied by the D2D discovery signal, and then can receive the D2D discovery signal.
  • the physical resource occupied by the D2D discovery signal is a periodic physical resource in the time domain, so that the UE A periodically sends the D2D discovery signal, and the UE B periodically receives the D2D discovery signal.
  • Step 502 UE A sends a D2D discovery signal on a physical resource occupied by the D2D discovery signal, and UE B receives the D2D discovery signal on a physical resource occupied by the D2D discovery signal.
  • Step 503 The UE B generates D2D response information according to the receiving result of the D2D discovery signal, where the D2D response information includes feedback information that the UE B successfully receives the D2D discovery signal, and the received power measured after successfully receiving the D2D discovery signal. Intensity information; After that, UE B jointly encodes the two information as D2D response information corresponding to a D2D discovery signal.
  • the D2D response information includes 4 bits, wherein a status 0000 indicated is used to indicate that the D2D discovery signal is not successfully received, and other states indicate the received power strength measured by the D2D discovery signal when the D2D discovery signal is successfully received. information.
  • Step 504 The base station device triggers the UE B to perform D2D ringing by using the PUSCH through the DCI.
  • the location of the PUSCH frequency domain resource used by the D2D response information and the set of D2D discovery signals corresponding to the triggered D2D response information are indicated in the DCI.
  • the base station device may pre-configure a plurality of D2D discovery signal sets by using high layer signaling, and then trigger D2D response information corresponding to one of the D2D discovery signal sets by DCI; or configure only one D2D discovery signal set.
  • the UE B After receiving the trigger signaling of the base station device, the UE B sends the D2D response information corresponding to the D2D discovery signal indicated by the trigger signaling on the PUSCH resource indicated by the corresponding DCI; if the trigger signaling indicates multiple D2D discovery signals, The UE B cascades the D2D response information corresponding to the multiple D2D discovery signals and then reports the information to the base station device.
  • the order of the cascading is according to the index order of the D2D discovery signals, or the order of the D2D discovery signals in the D2D discovery signal set. .
  • the base station device receives the D2D response information on the corresponding feedback resource, so as to learn the discovered situation of the UE corresponding to the set, and perform scheduling of the next communication.
  • the user equipment UE is also provided in the embodiment of the present application. As shown in FIG. 6, the device includes:
  • the first determining module 11 is configured to determine a physical resource occupied by the device to device D2D discovery signal
  • the first receiving module 12 is configured to receive a D2D discovery signal on the physical resource, and the generating module 13 is configured to generate D2D response information according to the received result of the D2D discovery signal;
  • the second determining module 14 is configured to determine a feedback resource occupied by the D2D response information, where the first sending module 15 is configured to send the D2D response information on the feedback resource.
  • the first determining module 11 is specifically configured to receive indication information that the D2D discovery signal from the base station device occupies the physical resource, and use the indication information to determine that the D2D discovery signal accounts for Or the physical resource that is received by the D2D discovery signal from the transmitting end UE, and the physical information occupied by the D2D discovery signal is determined by using the indication information; or, by detecting whether the physical resource is separately collected on multiple physical resources The signal is found to the D2D to determine the physical resources occupied by the D2D discovery signal.
  • the D2D response information generated by the generating module 13 includes one or any combination of the following: the identifier information of the UE that sends the D2D discovery signal; whether the UE successfully receives the feedback information of the D2D discovery signal; The received power strength information obtained by the signal is found to be measured; a request for establishing a D2D communication connection between the UE and the UE transmitting the D2D discovery signal.
  • the generating module 13 is specifically configured to: when the D2D response information includes multiple content, generate D2D response information including the content for each content; or jointly encode the multiple content, and jointly code
  • the subsequent content generates D2D response information including the content; or, the plurality of contents are subjected to concatenation processing, and D2D response information including the content is generated for the concatenated processed content.
  • the second determining module 14 is configured to receive downlink signaling from a base station device for configuring a feedback resource occupied by the D2D response information, and obtain a feedback resource occupied by the D2D response information from the downlink signaling; or Receiving control signaling from the transmitting end UE for configuring the feedback resource occupied by the D2D response information, and obtaining the feedback resource occupied by the D2D response information from the control signaling; or using the physical resource occupied by the D2D discovery signal And the sequence information of the physical resource is used to calculate the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal; or the resource information carried in the D2D discovery signal is used to obtain the D2D response information corresponding to the D2D discovery signal. Feedback resources.
  • the first sending module 15 is configured to send the D2D response information corresponding to the D2D discovery signal to the feedback resource at a time; or, periodically, send the D2D discovery signal corresponding to the feedback resource. D2D response information until successful reception After the D2D discovery signal is successfully received, or after the D2D discovery signal is successfully received, or after receiving the response triggering command from the base station device or the transmitting UE, transmitting the D2D discovery signal on the feedback resource. Corresponding D2D response information.
  • the first sending module 15 is specifically configured to send the D2D response information by using physical layer signaling on the feedback resource, or send the D2D response information by using high layer signaling on the feedback resource.
  • the modules of the device of the present application may be integrated into one or may be deployed separately.
  • the above modules can be combined into one module, or can be further split into multiple sub-modules.
  • the embodiment of the present application further provides a base station device.
  • the base station device specifically includes:
  • the third determining module 21 is configured to determine a feedback resource occupied by the D2D response information corresponding to the D2D discovery signal;
  • the second receiving module 22 is configured to receive D2D response information that is sent by the receiving end UE on the feedback resource, where the D2D response information is that the receiving end UE receives the D2D discovery according to the physical resource occupied by the D2D discovery signal. The reception result of the signal is generated and transmitted.
  • the third determining module 21 is specifically configured to determine, as a feedback resource occupied by the D2D response information corresponding to the D2D discovery signal, the resource that is not related to the sequence information of the physical resource and/or the physical resource occupied by the D2D discovery signal; or, use D2D
  • the sequence information of the physical resource and/or the physical resource occupied by the discovery signal is used to calculate the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal.
  • the base station device further includes: a second sending module 23, configured to determine, as a D2D discovery, a resource that is independent of sequence information of physical resources and/or physical resources occupied by the D2D discovery signal After the feedback resource occupied by the D2D response information corresponding to the signal is used, after determining the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal, the indication information of the feedback resource occupied by the D2D response information is sent to the receiving end by using downlink signaling.
  • a second sending module 23 configured to determine, as a D2D discovery, a resource that is independent of sequence information of physical resources and/or physical resources occupied by the D2D discovery signal After the feedback resource occupied by the D2D response information corresponding to the signal is used, after determining the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal, the indication information of the feedback resource occupied by the D2D response information is sent to the receiving end by using downlink signaling.
  • the modules of the device of the present application may be integrated into one or may be deployed separately.
  • the above modules can be combined into one module, or can be further split into multiple sub-modules.
  • a user equipment UE is further provided in the embodiment of the present application. As shown in FIG. 8, the user equipment specifically includes:
  • a fourth determining module 31 configured to determine a feedback resource occupied by the D2D response information corresponding to the D2D discovery signal
  • the third receiving module 32 is configured to receive D2D response information that is sent by the receiving end UE on the feedback resource, where the D2D response information is that the receiving end UE receives the D2D discovery according to the physical resource occupied by the D2D discovery signal. The reception result of the signal is generated and transmitted.
  • the fourth determining module 31 is specifically configured to determine, as a feedback resource occupied by the D2D response information corresponding to the D2D discovery signal, the resource that is not related to the sequence information of the physical resource and/or the physical resource occupied by the D2D discovery signal; or, use D2D
  • the sequence information of the physical resource and/or the physical resource occupied by the discovery signal is used to calculate the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal.
  • the user equipment further includes: a third sending module 33, configured to: when determining, as a feedback resource occupied by the D2D response information corresponding to the D2D discovery signal, the resource that is not related to the sequence information of the physical resource and/or the physical resource occupied by the D2D discovery signal , in determining the D2D discovery signal After the feedback resource occupied by the corresponding D2D response information, the indication information of the feedback resource occupied by the D2D response information is sent to the receiving end UE by using control signaling; or the feedback resource occupied by the D2D response information is used. The indication information is carried in the D2D discovery signal and sent to the receiving UE.
  • the modules of the device of the present application may be integrated into one or may be deployed separately.
  • the above modules can be combined into one module, or can be further split into multiple sub-modules.
  • the present application can be implemented by means of software plus a necessary general hardware platform, and can also be implemented by hardware, but in many cases, the former is better.
  • Implementation Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a A computer device (which may be a personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present application.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the embodiment, or may be correspondingly changed in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.
  • the device includes a memory 40, a processor 41 in communication with the memory 40, and an interface 42.
  • the memory 40 is configured to store a first determining instruction 401, a first receiving instruction 402, and an generating instruction 403, which are executable by the processor 41, and a second
  • the designation 404 and the first send command 405 are determined.
  • the first determining instruction 401 is used to indicate that a physical resource occupied by the device to the device D2D discovery signal is determined; the first receiving instruction 402 is used to indicate that the interface 42 is The D2D discovery signal is received on the physical resource; the generating instruction 403 is configured to generate D2D response information according to the receiving result of the D2D discovery signal; and the second determining instruction 404 is used to indicate determining the feedback resource occupied by the D2D response information;
  • the first sending instruction 405 is configured to instruct to send the D2D response information on the feedback resource through the interface 42.
  • the base station device specifically includes a memory 50, a processor 51 that communicates with the memory 50, and an interface 52.
  • the memory 50 is for storing a third determination instruction 501 that can be executed by the processor 51, and a second reception instruction 502.
  • the third determining instruction 501 is used to indicate a feedback resource that is used by the D2D response information corresponding to the D2D discovery signal; and the second receiving instruction 502 is used to indicate that the interface 52 is used. And receiving the D2D response information that is sent by the receiving end UE on the feedback resource, where the D2D response information is generated by the receiving end UE according to the receiving result of receiving the D2D discovery signal on the physical resource occupied by the D2D discovery signal, and Sent.
  • the memory 50 further stores a second transmit instruction executable by the processor 51
  • the third determining instruction 501 and the The function of the second sending instruction 503 is the same as that of the foregoing embodiment 5, and details are not described herein again.
  • the user equipment UE is further provided in the embodiment of the present application. As shown in FIG. 11, the user equipment specifically includes a memory 60, a processor 61 that communicates with the memory 60, and an interface 62. .
  • the memory 60 is for storing a fourth determination instruction 601 and a third reception instruction 602 that are executable by the processor 61.
  • the fourth determining instruction 601 is used to indicate that the feedback resource occupied by the D2D response information corresponding to the D2D discovery signal is determined; and the third receiving instruction 602 is used to indicate that the receiving end is received.
  • the memory 60 further includes a third transmit command executable by the processor
  • the fourth determining instruction 601 and the third sending instruction 603 when executed by the processor 61, perform the same functions as the sixth embodiment described above, and details are not described herein again.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif de transmission d'informations de réponse D2D, et selon le procédé : un équipement utilisateur (UE) à une extrémité réceptrice détermine la ressource physique occupée par un signal de découverte D2D, reçoit le signal de découverte D2D sur la ressource physique, génère des informations de réponse D2D en fonction du résultat de la réception du signal de découverte D2D, détermine la ressource de retour occupée par les informations de réponse D2D et envoie les informations de réponse D2D2 sur la ressource de retour. Dans un mode de réalisation de la présente invention, à la réception du signal de découverte D2D, l'UE génère des informations de réponse en fonction du résultat de réception du signal de découverte D2D et envoie les informations de réponse D2D correspondant au signal de découverte sur la ressource de retour, de sorte que l'équipement de station de base ou l'UE à l'extrémité émettrice est capable de savoir si la communication D2D peut être établie entre l'UE à l'extrémité émettrice et l'UE à l'extrémité réceptrice, complétant ainsi la communication D2D entre eux.
PCT/CN2014/072959 2013-03-25 2014-03-06 Procédé et dispositif de transmission d'informations de réponse d2d WO2014154085A1 (fr)

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