WO2017008209A1 - Procédé de communication de ressources de programmation semi-persistante (sps) et équipement d'utilisateur associé - Google Patents

Procédé de communication de ressources de programmation semi-persistante (sps) et équipement d'utilisateur associé Download PDF

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Publication number
WO2017008209A1
WO2017008209A1 PCT/CN2015/083794 CN2015083794W WO2017008209A1 WO 2017008209 A1 WO2017008209 A1 WO 2017008209A1 CN 2015083794 W CN2015083794 W CN 2015083794W WO 2017008209 A1 WO2017008209 A1 WO 2017008209A1
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Prior art keywords
user equipment
sps
resource
configuration information
transmission configuration
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PCT/CN2015/083794
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English (en)
Chinese (zh)
Inventor
魏冬冬
唐臻飞
周国华
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华为技术有限公司
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Priority to CN201580036454.7A priority Critical patent/CN106797631A/zh
Priority to PCT/CN2015/083794 priority patent/WO2017008209A1/fr
Publication of WO2017008209A1 publication Critical patent/WO2017008209A1/fr

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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 mobile communications, and in particular, to a communication method and user equipment based on semi-static scheduling of SPS resources.
  • a group of Device-to-Device (D2D) users transmit user equipment (User Equipment, UE) every time they send D2D data.
  • the SCI (Sidelink Control Information) is sent to the receiving UE before the D2D data, and the SCI is used to indicate information necessary for receiving the UE to receive the D2D data.
  • Each transmission of the SCI needs to occupy at least one subframe of the time domain resource, and the D2D communication can only work in the uplink frequency band or the uplink subframe, so it usually adopts the time division multiplexing (TDM) working mode, and each of the above
  • TDM time division multiplexing
  • the embodiment of the invention provides a communication method and user equipment based on semi-static scheduling of SPS resources, which can effectively reduce signaling overhead and improve utilization of transmission resources.
  • a communication method based on semi-statically scheduling SPS resources comprising:
  • the first user equipment acquires a transmission resource, where the transmission resource includes an SPS resource;
  • Determining to perform an SPS activation operation and transmitting, by using the transmission resource, a transmission configuration to the second user equipment Setting the information, the transmission configuration information carrying the first indication information, indicating that the scheduling mode between the first user equipment and the second user equipment is SPS;
  • the transmission configuration information is periodically sent to the second user equipment, and the data packet is sent or received to the second user equipment by using the SPS resource in one period.
  • the SPS deactivation operation is performed and the SPS resource is released when a condition of SPS deactivation is satisfied.
  • performing the SPS deactivation operation, and releasing the SPS resource includes:
  • the SPS deactivation operation is performed, and no indication message is sent to the second user equipment.
  • performing the SPS deactivation operation, and releasing the SPS resource includes:
  • the SPS deactivation operation is performed, and the transmission configuration information is modified, and the modified transmission configuration information carries second indication information, where the first user equipment and the first The scheduling mode between the two user equipments is dynamic scheduling;
  • the transmission configuration information further includes SPS transmission interval information
  • the periodically transmitting the transmission configuration information to the second user equipment includes:
  • the sending, by the SPS resource, to the second user equipment Before the configuration information is transmitted the method further includes:
  • the first user equipment sends a broadcast channel to the second user equipment, where the broadcast channel carries SPS transmission interval information;
  • the periodically transmitting the transmission configuration information to the second user equipment includes:
  • the method further includes:
  • the second user equipment receives a data packet from the first user equipment by using the SPS resource, or the second user equipment sends the first user equipment to the first user equipment by using the SPS resource. data pack;
  • the first user equipment does not receive the data packet through the SPS resource for m times, and the second user equipment does not send the data packet through the SPS resource for m times, it is determined that the first user is satisfied.
  • the condition that the device is pre-negotiated with the second user equipment for SPS deactivation, m is a positive integer.
  • the method further includes: When the first user equipment fails to transmit or receives the data packet through the SPS resource for n consecutive times, it is determined that the condition for SPS deactivation is satisfied, and n is a positive integer.
  • the transmission configuration information further includes device-to-device D2D link control information SCI
  • the method further includes:
  • SPS-Enable field is added to the SCI to identify a scheduling manner between the first user equipment and the second user equipment.
  • a second aspect provides a user equipment, where the user equipment includes: an acquiring unit and a communication unit;
  • the acquiring unit is configured to acquire a transmission resource, where the transmission resource includes an SPS resource;
  • the communication unit is configured to determine to perform an SPS activation operation, and send the transmission configuration information to the second user equipment by using the transmission resource acquired by the acquiring unit, where the transmission configuration information carries first indication information, where The scheduling mode between the user equipment and the second user equipment is SPS;
  • the communication unit is further configured to periodically send the transmission configuration information to the second user equipment when the SPS is activated, and send or receive to the second user equipment by using the SPS resource in one cycle. data pack.
  • the user equipment further includes: a releasing unit, configured to perform the SPS deactivation operation when the condition of SPS deactivation is met, and release the SPS resources.
  • the releasing unit is specifically configured to:
  • the SPS deactivation operation is performed, and no indication message is sent to the second user equipment.
  • the releasing unit is further configured to: when the condition of the SPS deactivation is met, perform the SPS deactivation operation, and And modifying the transmission configuration information, where the modified transmission configuration information carries the second indication information, where the scheduling manner between the user equipment and the second user equipment is dynamic scheduling;
  • the communication unit is further configured to send the modified transmission configuration information to the second user equipment.
  • the transmission configuration information further includes SPS transmission interval information
  • the communication unit is specifically configured to: periodically send the transmission configuration information to the second user equipment according to the SPS transmission interval information.
  • the communication unit is further configured to send a broadcast to the second user equipment Channel, the broadcast channel carries SPS transmission interval information;
  • the user equipment further includes: a first determining unit;
  • the first determining unit is configured to: when the user equipment does not send a data packet through the SPS resource for m consecutive times, and the second user equipment does not receive the data packet through the SPS resource for m consecutive times, determining In order to satisfy the condition that the user equipment and the second user equipment are pre-negotiated for SPS deactivation, m is a positive integer; or
  • the user equipment further includes: a second determining unit;
  • the second determining unit is configured to determine that the SPS deactivation condition is satisfied when the user equipment does not send or receive the data packet for n consecutive times through the SPS resource, and n is a positive integer.
  • the transmission configuration information is device-to-device D2D link control information SCI
  • the user equipment further includes: an adding unit, configured to add an “SPS-Enable” field in the SCI to identify a scheduling manner between the user equipment and the second user equipment.
  • a user equipment comprising: a processor, a memory, a communication interface, and a bus, wherein the processor, the memory, and the communication interface pass the Bus communication
  • the communication interface is configured to communicate with a switch or a control server
  • the memory is used to store a program
  • the processor is configured to execute the program stored by the memory to execute the semi-statically scheduled SPS resource-based communication method of the first aspect described above when the device is running.
  • the first user equipment acquires a transmission resource, where the transmission resource includes a Semi-Persistent-Schedule (SPS) resource;
  • SPS Semi-Persistent-Schedule
  • the SPS is activated to transmit the transmission configuration information to the second user equipment by using the transmission resource, where the transmission configuration information carries the first indication information, which is used to indicate the scheduling manner between the first user equipment and the second user equipment.
  • the transmission configuration information is periodically sent to the second user equipment, and the data packet is sent or received to the second user equipment by using the SPS resource in one period. Thereby, the signaling overhead can be effectively reduced, thereby improving the utilization of transmission resources.
  • 1 is a schematic structural diagram of an LTE system
  • FIG. 2 is a schematic diagram of types of synchronization sources in D2D communication
  • FIG. 3 is a flowchart of a communication method based on semi-persistent scheduling SPS resources according to Embodiment 1 of the present invention
  • FIG. 4 is a flowchart of a communication method based on semi-persistent scheduling SPS resources according to Embodiment 2 of the present invention
  • FIG. 5 is a flowchart of a communication method based on semi-persistent scheduling SPS resources according to Embodiment 3 of the present invention.
  • FIG. 6 is a schematic diagram of a user equipment provided by an apparatus embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a user equipment provided by an embodiment of a device according to the present invention.
  • the semi-persistent scheduling SPS resource-based communication method provided by the embodiment of the present invention is applied to the D2D communication link in the LTE system shown in FIG. 1, and in FIG. 1, between a relay user equipment (Relay UE) and a base station (eNB) Communication is performed through the uu port, where the relay user equipment refers to the user equipment in the network coverage, and the relay user equipment communicates with the external network user equipment (Remote UE) through the PC5 port, and the user equipment is relayed.
  • the communication with the user equipment outside the network is called D2D communication, and the communication link is called a D2D communication link.
  • D2D communication refers to a technology that realizes direct communication between short-distance user equipments without using third parties.
  • Step A The synchronization source is determined from a group of user equipments, and the determination of the synchronization source can be performed according to the priority.
  • the types of synchronization sources include five types: TypeA, TypeB, TypeC, TypeD, and TypeE.
  • the priority between different types of synchronization sources is: TypeA>TypeB> TypeC>TypeD>TypeE.
  • TypeA>TypeB>TypeC>TypeD>TypeE For example, suppose the foregoing group of user equipments includes two user equipments (user equipment A and user equipment B), and the types of the two user equipments are TypeB and TypeC respectively, because TypeB>TypeC, user equipment A can be used. Determined to be synchronized source.
  • Step B The synchronization source sends a synchronization signal to other user equipments in the same group.
  • the synchronization source sends a synchronization signal.
  • the synchronization signal may be a Primary Synchronization Signal (PSS) or a Secondary Synchronization Signal (SSS); and when the type of the synchronization source is When the type is other than TypeA, the synchronization signal may be a Primary D2D Synchronization Signal (PD2DSS) or a Secondary D2D Synchronization Signal (SD2DSS).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PD2DSS Primary D2D Synchronization Signal
  • SD2DSS Secondary D2D Synchronization Signal
  • a synchronization resource pool is composed of one subframe with a period of 40 ms, and the resource bandwidth occupies 6 resource blocks of the system bandwidth (Resource Block, RB), that is, the synchronization source transmits a synchronization signal every 40 ms.
  • the above one subframe may include 12 or 14 Orthogonal Frequency Division Multiplexing (OFDM) symbols, wherein there are two consecutive symbols for transmitting PD2DSS, two consecutive symbols for transmitting SD2DSS, and the last one.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the symbol is used as a gap, and the same location as the LTE Physical Uplink Shared Channel (PUSCH) is used to transmit a Demodulation Reference Signal (DMRS), and the remaining symbols are used to transmit a physical D2D broadcast channel (Physical). Sidelink Broadcast Channel, PSBCH).
  • PUSCH Physical Uplink Shared Channel
  • DMRS Demodulation Reference Signal
  • PSBCH Physical D2D broadcast channel
  • the fields in the PSBCH can be as shown in Table 1.
  • Step C The other user equipment performs time domain resource synchronization and frequency domain resource synchronization with the synchronization source.
  • time domain resource synchronization also called time synchronization
  • frequency domain resource synchronization frequency synchronization
  • FIG. 3 is a flowchart of a communication method based on semi-persistent scheduling SPS resources according to Embodiment 1 of the present invention.
  • the method is particularly applicable to the semi-static scheduling service (such as a voice over IP (VoIP) service) in the above-mentioned D2D communication.
  • the semi-static scheduling service such as a voice over IP (VoIP) service
  • the service data packet has the characteristics of periodic arrival and fixed size.
  • the executor of the method may be a first user equipment, as shown in FIG. 3, the method may specifically include:
  • the first user equipment acquires a transmission resource, where the transmission resource includes an SPS resource.
  • the transmission resource includes an SCI resource and an SPS resource.
  • the SCI resource refers to a time domain resource that sends or receives an SCI and a frequency domain resource that sends or receives an SCI
  • the SPS resource refers to a time domain resource that sends or receives D2D data and sends the data. Or receive the frequency domain resources of the D2D data.
  • the time domain resource for sending or receiving the SCI may be one subframe
  • the frequency domain resource for sending or receiving the SCI may be a resource block (RB); wherein the SCI may also be referred to as a scheduling assignment (Scheduling Assignment) , SA).
  • SA scheduling assignment
  • the fields in the SCI can be as shown in Table 2.
  • the first user equipment can obtain the transmission resource in two ways.
  • the first method is that the downlink control information in the downlink physical control channel (PDCCH) is allocated by the network side (Downlink Control Information). , DCI 5) is sent to the first user equipment; the second way is that the first user equipment is pre-configured Independently selected in the resource pool.
  • the first user equipment when the first user equipment is a user equipment of the type B in FIG. 2, the first user equipment obtains the transmission resource in the first manner, and when the first user equipment is in the type of FIG. 2, the type is TypeC, TypeD, or When a TypeE user device is used, it can obtain transmission resources in the second way.
  • the subsequent D2D communication links (including the uplink service and the downlink service) can periodically reuse the transmission resource.
  • S320 determining to perform an SPS activation operation, and transmitting transmission configuration information to the second user equipment by using the transmission resource, where the transmission configuration information carries first indication information, where the first user equipment and the second user equipment are The scheduling method between them is SPS.
  • the second user equipment may also be any type of user equipment other than Type A and Type B in FIG. 2 .
  • the foregoing transmission configuration information may be an SCI, that is, a field “SPS-Enable” may be added in the SCI shown in Table 2 to identify a scheduling manner between the first user equipment and the second user equipment, by using the SCI. Adding the above fields may enable the D2D communication link (ie, the PC5 port) to support SPS transmission.
  • the first indication information may be information when the content of the field “SPS-Enable” is true, that is, when the content of the field “SPS-Enable” is true, the first user equipment is The scheduling mode with the second user equipment is SPS.
  • S330 When the SPS is activated, periodically send the transmission configuration information to the second user equipment, and send or receive a data packet to the second user equipment by using the SPS resource in one period.
  • the second user equipment After receiving the transmission configuration information, the second user equipment means that the SPS transmission of the D2D communication link is enabled.
  • the transmission configuration information may further include SPS transmission interval information
  • the periodically transmitting the transmission configuration information to the second user equipment includes:
  • the field "SPS-Interval" can be added to the SCI shown in Table 2 to indicate the above SPS.
  • a transmission interval information where the SPS transmission interval information is used to indicate a time interval at which the first user equipment sends the transmission configuration information to the second user equipment; the content of the field may be a set, such as ⁇ 40ms, 80ms, 160ms, 320ms, 640ms, 1min, 2min ⁇ , in different scenarios or for different service types, the corresponding value can be selected from the above set as SPS transmission interval information.
  • the first user equipment sends the SCI to the second user equipment every 40 ms, that is, every 40 ms, the SPS transmission of the D2D communication link needs to be reactivated;
  • the first user equipment may continuously receive the data packet delivered by the eNB, and send the received data packet to the second user equipment; for the second user equipment, within each 40 ms, the second The user equipment can continuously receive the data packet sent by the first user equipment.
  • the first user equipment may continuously receive the data packet sent by the second user equipment; for the second user equipment, the second user equipment may continuously send the data packet to the first user equipment within each 40 ms.
  • the first user equipment or the second user equipment all sends or receives a data packet through the SPS resource acquired in S310. Specifically, when the SCI is sent or received, the SCI is sent or received through the time domain resource and the frequency domain resource of the SCI; and when the data packet is sent or received, the time domain resource and the frequency domain resource of the D2D data are used to send or receive the data packet. .
  • the foregoing SPS transmission interval information may also be carried in a broadcast channel
  • the periodically transmitting the transmission configuration information to the second user equipment includes:
  • the broadcast channel may be a PSBCH sent by the first user equipment to the second user equipment.
  • the foregoing SPS transmission interval information may be carried in the PSBCH.
  • the field “SPS-Interval” may be added to the PSBCH shown in Table 1 to indicate the SPS transmission interval information, where the SPS transmission interval information and the SPS are as described above.
  • the definition of the transmission interval information is the same and will not be described here.
  • the method further includes: when the condition of SPS deactivation is met, Performing the SPS deactivation operation and releasing the SPS resource.
  • the conditions for SPS deactivation include two types: the first is the SPS deactivation condition pre-negotiated by the first user equipment and the second user equipment; the second is the first user equipment and the second user equipment. Conditions for SPS deactivation without prior consultation.
  • the SPS deactivation operation is performed when the condition of the first SPS deactivation is satisfied, that is, when the condition that the first user equipment and the second user equipment are pre-negotiated for SPS deactivation is satisfied, and the The second user equipment sends any indication message.
  • the SPS deactivation condition that is pre-negotiated by the first user equipment and the second user equipment may be: the first user equipment does not send a data packet by using the SPS resource for m consecutive times. And the second user equipment does not receive the data packet through the SPS resource for m consecutive times, where m is a positive integer.
  • the first user equipment does not send the data packet by using the SPS resource for m consecutive times, including: the first user equipment does not send the data packet on the subframe where the allocated SPS resource is located for m consecutive times; the second user The device does not receive the data packet through the SPS resource for m consecutive times, including: the second user equipment does not receive the data packet on the subframe where the allocated SPS resource is located for m consecutive times.
  • condition that the first user equipment and the second user equipment are pre-negotiated by the SPS may be: the first user equipment is not received by the SPS resource for m consecutive times. a data packet, and the second user equipment does not send a data packet through the SPS resource for m consecutive times, where m is a positive integer.
  • m may be defined in the communication protocol of the LTE system in advance, or may be carried in the PSBCH sent by the first user equipment to the second user equipment, as in the PSBCH shown in Table 1.
  • Add a field, and the content of the field can be one or more values to suit different scenarios.
  • the SPS resource is released; and since there is no need to send any indication message to the second user equipment, the manner of releasing the SPS resource is also called implicit release.
  • the SPS resource is released, the first user equipment or the second user equipment does not receive or send the data packet through the SPS resource, and the first user equipment may release the
  • the SPS resource is allocated to the other user equipment; after that, if the second user equipment needs to send the data packet, the resource allocation request is sent to the network side again, and after receiving the resource allocation request, the network side re-allocates the SPS resource for the second user equipment.
  • the above-mentioned SPS deactivation step can avoid the situation that the transmission resource is not used for a long time when the SPS is activated, so that the transmission resource utilization can be improved; in addition, the implicit release of the resource saves the sending of the indication information to the second user equipment. Signaling overhead.
  • the SPS deactivation operation is performed, and the transmission configuration information is modified, and the modified transmission configuration information carries second indication information, where the first user equipment is used to represent The scheduling mode between the second user equipments is dynamic scheduling;
  • the second SPS deactivation condition may be: the first user equipment does not send or receive a data packet through the SPS resource for n consecutive times, where n is a positive integer.
  • the first user equipment does not send or receive the data packet continuously through the SPS resource for n times: the first user equipment does not send the data packet on the subframe where the allocated SPS resource is located n times consecutively, or first The user equipment does not receive the data packet on the subframe in which the allocated SPS resource is located for n consecutive times.
  • n may be defined in the communication protocol of the LTE system in advance, or may be carried in the PSBCH sent by the first user equipment to the second user equipment, as shown in Table 1.
  • a field is added to the PSBCH, and the content of the field can be one or more values to suit different scenarios.
  • the modifying the transmission configuration information may be: modifying the content of the SCI new field “SPS-Enable” to false.
  • the second indication information may be information when the content of the field “SPS-Enable” is false, that is, the modified transmission configuration information carries the second indication information.
  • Dynamic scheduling of the link after enabling dynamic scheduling of the D2D communication link, the first user equipment no longer periodically sends the SCI to the second user equipment, but instead Each time the D2D data is sent, the SCI needs to be sent to the second user equipment before the D2D data.
  • the foregoing SPS resource is released; after the SPS resource is released, the first user equipment or the second user equipment does not receive or send the data packet through the SPS resource, and the A user equipment may allocate the released SPS resource to other user equipment; after that, if the second user equipment needs to send a data packet, the resource allocation request is resent to the network side, and after receiving the resource allocation request, the network side re-is The second user equipment allocates SPS resources.
  • the semi-persistent scheduling SPS resource-based communication method is applied to the D2D communication link (ie, PC5 port) in the LTE system shown in FIG. 1 , and the non-D2D communication for the LTE system.
  • the link that is, the uu port
  • SPS SPS
  • the embodiment of the present invention mainly takes the communication between two user equipments as an example, it is not limited to two user equipments.
  • a group of D2D communication user equipments includes more than two user equipments, the user equipments The communication between the two is similar, and the present application does not describe it here.
  • the first user equipment acquires a transmission resource, where the transmission resource includes an SPS resource, and determines to perform an SPS activation operation, and uses the transmission resource to the second user.
  • the device sends the transmission configuration information, where the transmission configuration information carries the first indication information, which is used to indicate that the scheduling mode between the first user equipment and the second user equipment is SPS; when the SPS is activated, periodically
  • the second user equipment sends the transmission configuration information, and sends or receives a data packet to the second user equipment by using the SPS resource in one period.
  • the signaling overhead can be effectively reduced, thereby improving the utilization of transmission resources.
  • FIG. 4 is a flowchart of a communication method based on a semi-persistent scheduling SPS resource according to Embodiment 2 of the present invention. As shown in FIG. 4, the method may specifically include:
  • Steps S410-S430 are the same as steps S310-S330, and are not described herein.
  • the SPS deactivation condition that is pre-negotiated by the first user equipment and the second user equipment may be: the first user equipment does not send a data packet by using the SPS resource for m consecutive times. And the second user equipment does not receive the data packet through the SPS resource for m consecutive times, where m is a positive integer.
  • the first user equipment does not send the data packet by using the SPS resource for m consecutive times, including: the first user equipment does not send the data packet on the subframe where the allocated SPS resource is located for m consecutive times; the second user The device does not receive the data packet through the SPS resource for m consecutive times, including: the second user equipment does not receive the data packet on the subframe where the allocated SPS resource is located for m consecutive times.
  • condition that the first user equipment and the second user equipment are pre-negotiated by the SPS may be: the first user equipment is not received by the SPS resource for m consecutive times. a data packet, and the second user equipment does not send a data packet through the SPS resource for m consecutive times, where m is a positive integer.
  • m may be defined in the communication protocol of the LTE system in advance, or may be carried in the PSBCH sent by the first user equipment to the second user equipment, as in the PSBCH shown in Table 1.
  • Add a field, and the content of the field can be one or more values to suit different scenarios.
  • the SPS resource is released; and since there is no need to send any indication message to the second user equipment, the manner of releasing the SPS resource is also called implicit release.
  • the SPS resource is released, the first user equipment or the second user equipment does not receive or send the data packet through the SPS resource, and the first user equipment may allocate the released SPS resource to other user equipment; The two user equipments need to send the data packet, and then re-send the resource allocation request to the network side. After receiving the resource allocation request, the network side re-allocates the SPS resource for the second user equipment.
  • FIG. 5 is a flowchart of a communication method based on a semi-persistent scheduling SPS resource according to Embodiment 3 of the present invention. As shown in FIG. 5, the method may specifically include:
  • Steps S510-S530 are the same as steps S310-S330, and are not described herein.
  • the foregoing SPS deactivation condition may be: the first user equipment does not send or receive a data packet through the SPS resource for n consecutive times, where n is a positive integer.
  • the first user equipment does not send or receive the data packet continuously through the SPS resource for n times: the first user equipment does not send the data packet on the subframe where the allocated SPS resource is located n times consecutively, or first The user equipment does not receive the data packet on the subframe in which the allocated SPS resource is located for n consecutive times.
  • n may be defined in the communication protocol of the LTE system in advance, or may be carried in the PSBCH sent by the first user equipment to the second user equipment, as shown in Table 1.
  • a field is added to the PSBCH, and the content of the field can be one or more values to suit different scenarios.
  • the modifying the transmission configuration information may be: modifying the content of the SCI new field “SPS-Enable” to false.
  • the second indication information may be information when the content of the field “SPS-Enable” is false, that is, the modified transmission configuration information carries the second indication information.
  • the SPS resource is released; after the SPS resource is released, the first user equipment or the second user equipment is no longer connected through the SPS resource.
  • Receiving or transmitting a data packet, and the first user equipment may allocate the released SPS resource to other user equipment; thereafter, if the second user equipment needs to send the data packet, resend the resource allocation request to the network side, and the network side receives the After the resource allocation request, the SPS resource is re-allocated for the second user equipment.
  • the first user equipment acquires a transmission resource, where the transmission resource includes an SPS resource, and determines to perform an SPS activation operation, and uses the transmission resource to the second user.
  • the device sends the transmission configuration information, where the transmission configuration information carries the first indication information, which is used to indicate that the scheduling mode between the first user equipment and the second user equipment is SPS; when the SPS is activated, periodically
  • the second user equipment sends the transmission configuration information, and sends or receives a data packet to the second user equipment by using the SPS resource in one period.
  • the signaling overhead can be effectively reduced, thereby improving the utilization of transmission resources.
  • FIG. 6 is a schematic diagram of a user equipment provided by an embodiment of a device according to the present invention.
  • the user equipment can be used to perform the method described in FIG.
  • the user equipment includes: an obtaining unit 601 and a communication unit 602.
  • the obtaining unit 601 is configured to acquire a transmission resource, where the transmission resource includes an SPS resource.
  • the communication unit 602 is configured to determine to perform an SPS activation operation, and send the transmission configuration information to the second user equipment by using the transmission resource acquired by the acquiring unit 601, where the transmission configuration information carries the first indication information, where The scheduling mode between the device and the second user equipment is SPS.
  • the communication unit 602 is further configured to periodically send the transmission configuration information to the second user equipment when the SPS is activated, and send or receive data to the second user equipment by using the SPS resource in one cycle. package.
  • the user equipment may further include: a releasing unit 603, configured to perform the SPS deactivation operation and release the SPS resource when a condition of SPS deactivation is met.
  • a releasing unit 603 configured to perform the SPS deactivation operation and release the SPS resource when a condition of SPS deactivation is met.
  • the releasing unit 603 is specifically configured to: when the user equipment and the second user equipment are satisfied in advance When the negotiated SPS deactivation condition is performed, the SPS deactivation operation is performed, and no indication message is sent to the second user equipment.
  • the releasing unit 603 is further configured to: when the condition of the SPS deactivation is met, perform the SPS deactivation operation, and modify the transmission configuration information, where the modified transmission configuration information carries second indication information, where The scheduling mode between the user equipment and the second user equipment is dynamic scheduling;
  • the transmission configuration information further includes SPS transmission interval information
  • the communication unit 602 is specifically configured to: periodically send the transmission configuration information to the second user equipment according to the SPS transmission interval information.
  • the communication unit 602 is further configured to send a broadcast channel to the second user equipment, where the broadcast channel carries SPS transmission interval information;
  • the user equipment further includes: a first determining unit 604;
  • the first determining unit 604 is configured to: when the user equipment does not send a data packet through the SPS resource for m times, and the second user equipment does not receive the data packet through the SPS resource for m consecutive times, it is determined as Satisfying the condition that the user equipment and the second user equipment are pre-negotiated for SPS deactivation, m is a positive integer; and/or,
  • the user equipment further includes: a second determining unit 605;
  • the second determining unit 605 is configured to determine that the condition that the SPS is deactivated is satisfied when the user equipment does not send or receive the data packet through the SPS resource for n consecutive times, and n is a positive integer.
  • the transmission configuration information is device-to-device D2D link control information SCI
  • the user equipment further includes: an adding unit 606, configured to add an “SPS-Enable” field to the SCI. And identifying a scheduling manner between the user equipment and the second user equipment.
  • the acquiring unit 601 acquires a transmission resource, where the transmission resource includes an SPS resource, and the communication unit 602 determines to perform an SPS activation operation, and the transmission resource acquired by the obtaining unit 601 is sent to the second user.
  • the device sends the transmission configuration information, where the transmission configuration information carries the first indication information, which is used to indicate that the scheduling mode between the user equipment and the second user equipment is SPS; when the SPS is activated, the communication unit 602 periodically
  • the second user equipment sends the transmission configuration information, and sends or receives a data packet to the second user equipment by using the SPS resource in one period.
  • the signaling overhead can be effectively reduced, thereby improving the utilization of transmission resources.
  • FIG. 7 is a schematic diagram of a user equipment provided by an embodiment of a device according to the present invention.
  • the apparatus 700 includes a processor 702, a memory 704, a communication interface 706, and a bus 708.
  • the processor 702, the memory 704, and the communication interface 706 implement a communication connection with each other through the bus 708.
  • the processor 702 can be a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits for executing related programs.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • the memory 704 may be a read only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM).
  • Memory 704 can store operating systems and other applications.
  • the program code for implementing any optional technical solution provided by the foregoing method embodiment of the present invention is saved in the memory 704 and executed by the processor 702. .
  • Communication interface 706 is used to communicate with other switches or control servers.
  • Bus 708 can include a path in various components of device 700 (e.g., processor 702, memory) Information is transferred between 704 and communication interface 706).
  • the user equipment provided by the device embodiment of the present invention can effectively reduce signaling overhead, thereby improving utilization of transmission resources.
  • the steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both.
  • the software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.

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

Abstract

Un mode de réalisation de la présente invention se rapporte à un procédé de communication de ressources de programmation semi-persistante (SPS) et à un équipement d'utilisateur associé, le procédé consistant à : acquérir, au moyen d'un premier équipement d'utilisateur, une ressource de transmission, la ressource de transmission comprenant une ressource SPS; déterminer l'exécution d'une fonction d'activation de SPS, et envoyer des informations de configuration de transmission à un second équipement d'utilisateur par l'intermédiaire de la ressource de transmission, les informations de configuration de transmission contenant des premières informations d'indication indiquant qu'un mode de programmation entre un premier équipement d'utilisateur et un second équipement d'utilisateur consiste en un mode SPS; lorsque la SPS est active, envoyer périodiquement au second équipement d'utilisateur des informations de configuration de transmission, et, à l'intérieur d'une période, envoyer un paquet de données vers le second équipement d'utilisateur ou recevoir un paquet de données provenant de celui-ci par l'intermédiaire de la ressource SPS. L'invention peut réduire efficacement des surdébits de signalisation, augmentant ainsi un taux d'utilisation des ressources de transmission.
PCT/CN2015/083794 2015-07-10 2015-07-10 Procédé de communication de ressources de programmation semi-persistante (sps) et équipement d'utilisateur associé WO2017008209A1 (fr)

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PCT/CN2015/083794 WO2017008209A1 (fr) 2015-07-10 2015-07-10 Procédé de communication de ressources de programmation semi-persistante (sps) et équipement d'utilisateur associé

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