WO2012097724A1 - Procédé de planification semi-continue, équipement utilisateur et dispositif réseau - Google Patents

Procédé de planification semi-continue, équipement utilisateur et dispositif réseau Download PDF

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Publication number
WO2012097724A1
WO2012097724A1 PCT/CN2012/070477 CN2012070477W WO2012097724A1 WO 2012097724 A1 WO2012097724 A1 WO 2012097724A1 CN 2012070477 W CN2012070477 W CN 2012070477W WO 2012097724 A1 WO2012097724 A1 WO 2012097724A1
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WIPO (PCT)
Prior art keywords
user equipment
sps
successfully
control signaling
feedback
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PCT/CN2012/070477
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English (en)
Chinese (zh)
Inventor
权威
姜怡
张戬
陈小锋
黄曲芳
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows

Definitions

  • the present invention relates to mobile communication technologies, and in particular, to a semi-static scheduling method, user equipment, and network equipment.
  • a base station eNodeB, eNB uses a Physical Downlink Control Channel (PDCCH) to transmit control signaling for scheduling User Equipment (UE).
  • UE User Equipment
  • the control signaling is performed by using the Cell Radio Network Temporary Identity (C-RNTI) of the UE, and after the UE monitors the control signaling transmitted on the PDCCH,
  • C-RNTI Cell Radio Network Temporary Identity
  • the control signaling transmitted on the PDCCH may be de-masked by using its own C-RNTI, and the de-masked control signaling includes a physical channel resource allocated to the UE and a specifically used modulation and coding manner.
  • the UE performs data transmission and reception on the corresponding physical channel according to the related information carried in the control signaling and according to the indication therein.
  • the control signaling transmitted on the PDCCH itself is also carried on a certain physical resource for transmission.
  • TTI Transmission Time Interval
  • the control signaling that can be carried in a Transmission Time Interval (TTI) is usually only a dozen or so, which also includes uplink and downlink scheduling signaling. Therefore, on average, up to or down, only a few to a dozen users can be scheduled in one cell at a time.
  • control signaling may be sent only in certain subframes. At this time, the number of control signaling transmitted on the PDCCH will be less. The number of users that can be scheduled because the number of control signaling transmitted on the PDCCH is limited The amount is also limited, resulting in limited system capacity.
  • SPS Semi-Persistent Scheduling
  • the eNB may configure an SPS period and a Physical Uplink Control Channel (PUCCH) feedback resource to the UE through a Radio Resource Control (RRC) message.
  • RRC Radio Resource Control
  • the eNB may activate the SPS by using the control signaling transmitted on the PDCCH.
  • the UE receives the downlink data at the corresponding time point according to the SPS period configured by the RRC message, and feeds back the resources in the configured PUCCH. Feedback is performed on the PDCCH without scheduling each time the UE is scheduled.
  • the eNB may send an SPS modification or release command by using control signaling transmitted on the PDCCH.
  • control signaling transmitted on the PDCCH may be frequently used to modify the SPS resources as the radio channel conditions change, resulting in PDCCH resources. waste.
  • VoIP voice over IP
  • Embodiments of the present invention provide a semi-persistent scheduling method, user equipment, and network equipment to save
  • PDCCH resources improve system capacity and resource utilization.
  • An aspect of the present invention provides a semi-persistent scheduling method, including:
  • the first user equipment acquires a semi-persistent scheduling SPS group scheduling identifier, where user equipments in the same group share one SPS group scheduling identifier;
  • the first user equipment receives the control signaling that is masked on the physical downlink control channel PDCCH, and demasks the control signaling according to the SPS group scheduling identifier, to obtain the de-masked control signaling;
  • Another aspect of the present invention provides a semi-persistent scheduling method, including:
  • the network device sends, on the PDCCH, the control that uses the SPS group scheduling identifier to mask the first user equipment.
  • the signaling device wherein the user equipment in the same group shares an SPS group scheduling identifier; the network device sends a MAC PDU to the user equipment on the PDSCH, where the MAC PDU includes at least one user in the group where the first user equipment is located.
  • the packet of the device is not limited to the PDCCH, the control that uses the SPS group scheduling identifier to mask the first user equipment.
  • the signaling device wherein the user equipment in the same group shares an SPS group scheduling identifier; the network device sends a MAC PDU to the user equipment on the PDSCH, where the MAC PDU includes at least one user in the group where the first user equipment is located.
  • Another aspect of the present invention provides a user equipment, including:
  • An acquiring module configured to acquire a semi-persistent scheduling SPS group scheduling identifier, where the user equipment shares an SPS group scheduling identifier with other user equipments in the same group;
  • a demodulation module configured to receive control signaling that is masked on the physical downlink control channel PDCCH, and demask the control signaling according to the SPS group scheduling identifier, to obtain a demodulated control signaling user equipment; Receiving, according to the demodulated control signaling, a media access control MAC protocol data unit PDU on the physical downlink shared channel PDSCH, where the MAC PDU includes a data packet of at least one user equipment in the packet where the user equipment is located.
  • Another aspect of the present invention provides a network device, including:
  • a signaling sending module configured to send, to the first user equipment, a control signaling that is masked by the SPS group scheduling identifier, where the user equipment in the same group shares an SPS group scheduling identifier, and the data sending module is configured to Sending a MAC PDU to the user equipment on the PDSCH, the MAC
  • the PDU includes a data packet of at least one user equipment in the group where the first user equipment is located.
  • the embodiment of the present invention uses the SPS control signaling transmitted on the PDCCH to schedule the UE of the same group, so that multiple UEs can be activated, modified, or released by the SPS of the same PDCCH, thereby avoiding The use of the control signaling to perform the activation, modification, or release of the SPS frequently saves the PDCCH resources.
  • the SPS resources of multiple UEs are simultaneously operated, thereby improving System capacity and resource utilization.
  • FIG. 1 is a schematic flow chart of a method according to an embodiment of the present invention.
  • FIG. 2 is a schematic flow chart of a method according to another embodiment of the present invention.
  • FIG. 3 is a schematic flow chart of a method according to another embodiment of the present invention.
  • FIG. 4 is a schematic flow chart of a method according to another embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a user equipment according to another embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a network device according to another embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a method according to an embodiment of the present invention, including:
  • Step 11 The first UE acquires an SPS group scheduling identifier, where UEs in the same group share an SPS group scheduling identifier.
  • the first UE may obtain the SPS group scheduling identifier in the following manner:
  • the first user equipment receives radio resource control sent by the network device (Radio Resouce)
  • the RRC message carries the SPS group scheduling identifier allocated by the network device to the first user equipment; or the first user equipment receives a paging message, where the paging message carries a group identifier corresponding to the paging message, where the group identifier corresponding to the paging message is used as the
  • the SPS group scheduling identifier that is, the Paging-Radio Network Temporary Identity (P-RNTI) corresponding to the paging message is used as the SPS group scheduling identifier; or the first user equipment according to the pre-configured information.
  • P-RNTI Paging-Radio Network Temporary Identity
  • Step 12 The first UE receives the control signaling on the PDCCH, and demasks the control signaling according to the SPS group scheduling identifier, to obtain the de-masked control signaling including the SPS command. And configured to perform SPS scheduling on a UE in a packet where the first UE is located.
  • Step 13 The first UE receives a Media Access Control (MAC) Protocol Data Unit (PDU) on the PDSCH according to the demodulated control signaling that includes the SPS command.
  • the MAC PDU includes a data packet of at least one UE in the packet where the first UE is located.
  • the embodiment may further include:
  • the first UE sends feedback information or does not perform feedback on the feedback resource indicated by the SPS information according to the SPS command and the receiving of the control signaling and the MAC PDU.
  • the first UE may obtain the SPS information in the following manner:
  • the first user equipment receives an RRC message sent by the network device, where the RRC message includes the SPS information, where the SPS information includes: an SPS period, a physical uplink control channel PUCCH feedback resource.
  • the PUCCH feedback resource is a dedicated PUCCH feedback resource configured for the first UE
  • the SPS command is an SPS activation or modification command
  • the first UE according to the SPS command and the The control signaling and the receiving of the MAC PDU, and the sending of the feedback information or the feedback on the feedback resource indicated by the SPS information includes:
  • the first UE succeeds in de-masking the control signaling, and successfully decoding the MAC PDU, feeding back ACK information on the PUCCH feedback resource according to the SPS period; or, if the first UE succeeds Unmasking the control signaling, but failing to successfully decode the MAC PDU, and feeding back NACK information on the PUCCH feedback resource according to the SPS period; or if the first UE fails to unmask the control successfully Signaling, no feedback is made.
  • the PUCCH feedback resource is a shared PUCCH feedback resource configured for the first UE, and the SPS command is activated or modified by the SPS, the first UE is configured according to the SPS command. And sending the feedback information or not performing the feedback SPS command on the feedback resource indicated by the SPS information, and the receiving the control signaling and the MAC PDU, including:
  • the ACK information is fed back on the PUCCH feedback resource according to the SPS period; or If the first UE does not successfully unmask the control signaling, or if the first UE successfully demasks the control signaling, but does not successfully decode the MAC PDU, or if the first UE The control signaling is successfully masked, and the MAC PDU is successfully decoded, but the data packet corresponding to the first UE is not included in the successfully decoded MAC PDU, and no feedback is performed.
  • the PUCCH feedback resource is a dedicated PUCCH feedback resource configured for the first UE
  • the SPS command is an SPS release command
  • the first UE according to the SPS command and the control signaling and
  • the sending of the MAC PDU includes:
  • the first user equipment successfully demasks the control signaling, feedback ACK information on the PUCCH feedback resource according to the SPS period; or if the first UE fails to unmask the control signal Order, no feedback.
  • this embodiment may further include:
  • the feedback information includes the ACK information or the NACK information;
  • the first UE receives the masked control signaling that is retransmitted by the network device on the PDCCH, where the re-transmitted masked control signaling is that the network device does not receive the first user equipment. Sent after the feedback information.
  • the UEs of the same group are scheduled by using the SPS control signaling transmitted on the PDCCH, so that multiple UEs can be SPS activated, modified, or released by the control signaling of the same PDCCH. Avoiding frequent use of control signaling to perform activation, modification, or release of SPS, saving PDCCH resources; by including multiple data packets of UEs belonging to the same packet in a MAC PDU, simultaneously operating SPS resources of multiple UEs, Increased system capacity and resource utilization.
  • FIG. 2 is a schematic flowchart of a method according to another embodiment of the present invention, including:
  • Step 21 The network device sends a control signaling that is masked by the SPS group scheduling identifier to the first UE on the PDCCH, where the control signaling includes an SPS command, where the user equipment in the same group shares an SPS group scheduling identifier.
  • the SPS command is used to perform SPS scheduling on the user equipment in the group where the first user equipment is located;
  • the network device includes but is not limited to: an eNB, an eNodeB.
  • Step 22 The network device sends a MAC PDU to the user equipment on the PDSCH, where
  • the MAC PDU includes a data packet of at least one user equipment in the group where the first user equipment is located.
  • the embodiment may further include:
  • the network device sends an RRC message to the first user equipment, where the RRC message carries an SPS group scheduling identifier that is allocated by the network device to the first user equipment, so that the first user equipment is scheduled according to the SPS group. Decrypting the control signaling; or: the network device sends a paging message to the first user equipment, where the paging message carries a group identifier corresponding to the paging message, so that the first user equipment is configured according to The group identifier demasks the control signaling.
  • this embodiment may further include:
  • the network device learns the receiving situation of the first UE according to the feedback situation of the first user equipment, and the feedback situation of the first UE includes: feeding back information on the feedback resource indicated by the SPS information or not performing feedback.
  • the method may further include: the network device sending an RRC message to the first user equipment, before the network device is configured to receive the first user equipment according to the feedback situation of the first user equipment, where
  • the SPS information is included in the RRC message, and the SPS information includes: an SPS period and a PUCCH feedback resource.
  • the PUCCH feedback resource is a dedicated PUCCH feedback resource of the user equipment
  • the SPS command is an SPS activation or modification command
  • the user equipment if the ACK information fed back by the first user equipment is received on the PUCCH feedback resource according to the SPS period, it is learned that the first user equipment successfully demasks the control signaling, and Successfully decoding the MAC PDU; or, if the NACK information fed back by the first user equipment is received on the PUCCH feedback resource according to the SPS period, it is learned that the first user equipment successfully unmasks the control Signaling, but the MAC PDU is not successfully decoded; or if the information fed back by the first user equipment is not received, it is learned that the first user equipment does not successfully unmask the control signaling.
  • the PUCCH feedback resource is a PUCCH feedback resource shared by the user equipment, and the SPS command is activated or modified by the SPS
  • the user of the first user equipment is informed according to the feedback situation of the first user equipment.
  • the device includes: if the ACK information fed back by the first user equipment is received on the PUCCH feedback resource according to the SPS period, it is learned that the first user equipment successfully unmasks the control signaling, and succeeds After decoding the MAC PDU, the decoded MAC PDU includes a data packet corresponding to the first user equipment; or, if the information fed back by the first user equipment is not received, the first The user equipment does not successfully unmask the control signaling, or the first user equipment successfully unmasks the control signaling, but the MAC PDU is not successfully decoded, or the first user equipment successfully decrypts the The control signaling is performed, and the MAC PDU is successfully decoded, but the data packet corresponding to the first user equipment is not in the successfully decoded MAC P
  • the PUCCH feedback resource is a PUCCH feedback resource shared by the user equipment
  • the SPS command is an SPS release command
  • the user equipment of the first user equipment is obtained according to the feedback situation of the first user equipment.
  • the method includes: if the ACK information fed back by the first user equipment is received on the PUCCH feedback resource according to the SPS period, it is learned that the first user equipment successfully demasks the control signaling; or if not received
  • the feedback information to the first user equipment is used to learn that the first user equipment does not successfully unmask the control signaling.
  • the embodiment may further include: if the network device receives the feedback information sent by the first user equipment, transmitting the data packet of the first user equipment according to the SPS resource, where the feedback information includes the ACK information or NACK information; or, if the network device does not receive the information fed back by the first user equipment, re-send the masked control signaling to the first user equipment on the PDCCH.
  • FIG. 3 is a schematic flowchart of a method according to another embodiment of the present invention.
  • a PUCCH feedback resource is used as an example for configuring a dedicated feedback resource for a UE to a UE.
  • this embodiment includes:
  • Step 31 The eNB sends an RRC message to the UE, where the RRC message includes SPS information configured for the UE.
  • the SPS information includes: an SPS period and a PUCCH feedback resource.
  • a dedicated PUCCH feedback resource is configured for the UE, that is, each UE in the group has its own PUCCH feedback resource.
  • the method for the UE to identify whether the dedicated PUCCH feedback resource is configured for itself includes, but is not limited to, the following:
  • the eNB indicates whether the PUCCH feedback resource is UE-specific in the RRC message, or adds a new allocation non-dedicated (ie, shared within the group)
  • the parameter of the PUCCH feedback resource if the PUCCH resource allocated by the existing parameter is used, is a dedicated resource of the UE, and if it is a PUCCH resource allocated by the new parameter, it is not a dedicated resource of the UE; or when the eNB indicates in the RRC message
  • the number of PUCCHs is 1, the UE considers that the PUCCH feedback resources are UE-specific, and when the number is greater than 1, it is considered not to be dedicated
  • the SPS group scheduling identifier (such as the Group-SPS-RNTI) may be configured for the UE by using the RRC message, or the SPS group scheduling identifier may also be the group identifier corresponding to the paging message, because the paging message has a group identifier. Therefore, the group identifier may be directly used as the SPS group scheduling identifier; or may be configured in the static configuration manner and configured in advance on the UE side. The UE may use the SPS group scheduling identifier to mask the control signaling corresponding to itself, so as to perform data reception according to the demodulated control signaling.
  • Step 32 The eNB sends the masked control signaling on the PDCCH, where the control signaling includes an SPS command, where the SPS command is used to perform SPS adjustment on the UE in the group where the UE is located. Degree.
  • the eNB sends a MAC PDU on a Physical Downlink Shared Channel (PDSCH), where the MAC PDU includes a data packet of at least one UE of the packet where the UE is located, and the data packet may be one or more MAC service data.
  • PDSCH Physical Downlink Shared Channel
  • the SPS commands include: SPS activation/modification commands and SPS release commands.
  • group-based SPS scheduling may be implemented.
  • the UEs in the group may be simultaneously activated/modified or released through the control signaling transmitted by the PDCCH.
  • Step 33 The UE monitors the PDCCH, and uses the SPS group scheduling identifier to demask the control signaling transmitted on the PDCCH.
  • the UEs in the same group share one SPS group scheduling identifier.
  • the SPS group scheduling identifier of the UE side may be configured by the eNB to the UE by using an RRC message, or may be a group identifier corresponding to the paging message, or may be pre-configured in the UE.
  • Step 34 The UE receives the MAC PDU on the PDSCH according to the demodulated control signaling, where the MAC PDU includes a data packet of at least one UE in the packet where the UE is located.
  • the demodulated control signaling includes a physical channel resource corresponding to the UE, so that the UE can receive data on the corresponding PDSCH.
  • the UE configured with the SPS information may perform a corresponding SPS receiving operation. For example, if the SPS command is an activation/modification command, after receiving the SPS activation/modification command, the UE starts from the time point when the SPS activation/modification command is received or the time point indicated in the SPS activation/modification command, The configured SPS period is a period, and the periodic attempt is made in the manner indicated by the SPS command on the PDSCH resource indicated in the SPS command (such as the modulation used) The code mode, the size of the transmitted data block, and the like are received, and feedback is performed using the PUCCH resource configured as described above according to the data reception condition. If the SPS command is an SPS release command, the UE does not receive the subsequent.
  • Step 35 The UE sends feedback information or does not perform feedback on the feedback resource indicated by the SPS information acquired in advance according to the SPS command and the receiving of the control signaling and the MAC PDU.
  • the SPS command is an SPS activation/modification command
  • the UE successfully demodulates the control signaling transmitted on the PDCCH and successfully decodes the MAC PDU transmitted by the PDSCH whether the MAC PDU successfully decoded has its own data packet or not
  • the ACK information is fed back to the eNB through the PUCCH configured as described above. If the UE successfully decodes the control signaling carried by the PDCCH but fails to successfully decode the MAC PDU carried by the PDSCH, the NACK information is fed back to the eNB through the configured PUCCH; If the control signaling carried by the PDCCH is successfully masked, no feedback is performed.
  • the SPS command is an SPS release command
  • feedback is performed according to the reception condition of the control signaling. For example, when the UE successfully receives the control signaling, that is, the UE successfully unmasks the control signaling, the ACK information is fed back. Otherwise, no feedback is made.
  • Step 36 The eNB performs corresponding processing according to the feedback situation of the UE.
  • the control signaling and the data are all successfully received by the UE when the ACK is received; if the NACK is received, the UE is considered to receive only the PDCCH and the PDSCH is not solved; if nothing is received , it is considered that the UE does not receive the PDCCH.
  • the group SPS resource can be used to transmit the data of the UE; if nothing is received, the UE is considered not to receive the PDCCH, and the subsequent SPS cannot be transmitted on the PDCCH.
  • the data of the UE is transmitted on the SPS resource notified by the command.
  • the eNB re-sends the SPS activation command on the PDCCH to activate, and for the UE that has received the SPS activation command, the SPS activation command may be used. Understand the SPS modification command.
  • the UE successfully receives the MAC PDU transmitted on the PDSCH resource indicated by the SPS activation/modification command, and the MAC PDU has its own data, and the ACK is received in the preset PUCCH resource. If the MAC PDU is successfully received but does not have its own data, it may not feed back or feed back NACK or feedback ACK.
  • the PDU can monitor the control signaling of the scheduled SPS group scheduling identifier and mask the retransmission, perform SPS retransmission, and control the CCE (Control Channel Element) on the pre-configured PUCCH resource or according to the control signaling. The relative position of the channel unit is fed back accordingly.
  • the eNB may ignore the feedback of the UE.
  • the eNB may perform the scheduling retransmission.
  • the eNB may continue to use the group scheduling manner to schedule the data of the UE. , or notify the dedicated scheduling method to retransmit the UE data.
  • the UE does not need to listen to the group SPS scheduling, and the eNB may explicitly notify the UE by using signaling, or the UE may determine according to the configuration.
  • the SPS scheduling of the group can implement SPS group scheduling of multiple UEs in different SPS periods. For example, some UEs are SPS periods of 20 ms, and some UEs are SPS periods of 40 ms.
  • group SPS scheduling UEs using SPS periods of 20 ms only need to receive data at the time of integer multiple of +20 ms at the activation time point, and use 40 ms. The UE of the SPS cycle only needs to receive data at the time of an integral multiple of +40 ms at the activation time point.
  • the same UE group SPS scheduling and dedicated SPS scheduling cannot be activated at the same time.
  • the priority of dedicated SPS scheduling signaling is higher than the group SPS scheduling optimization level, namely: When the UE is using dedicated SPS scheduling for data reception, the UE no longer listens to the signaling and data scheduled by the group SPS;
  • the dedicated SPS release command may be used for modification or release.
  • the eNB and the UE perform SPS transmission according to the dedicated SPS command, and subsequently, the UE does not listen to the same as the prior art.
  • the group SPS schedules signaling and data; when released, the UE does not receive the data corresponding to the previous group SPS command unless the UE listens to the group SPS activation command again.
  • the service using the SPS scheduling mode usually has a small amount of data
  • a plurality of UEs that need to use SPS scheduling are grouped together, and group scheduling is used, which can further improve the resource utilization of the PDSCH on the basis of reducing the PDCCH overhead.
  • FIG. 4 is a schematic flowchart of a method according to another embodiment of the present invention.
  • a PUCCH feedback resource is used as an example for a shared feedback resource configured by a base station to a UE.
  • this embodiment includes:
  • Step 41 The eNB sends an RRC message to the UE, where the RRC message includes SPS information configured for the UE.
  • the PUCCH feedback resource configured in this embodiment is in the group.
  • Step 42 The eNB sends the masked control signaling on the PDCCH, where the control signaling includes an SPS command, where the SPS command is used to perform SPS scheduling on the UE in the packet where the UE is located.
  • the eNB sends a MAC PDU on the PDSCH, where the MAC PDU includes a data packet of at least one UE of the packet that the UE is in, and the data packet may be one or more MAC SDUs and/or one or more MAC CEs.
  • Step 43 The UE monitors the PDCCH, and uses the SPS group scheduling identifier to demask the control signaling transmitted on the PDCCH, where the UEs in the same group share one SPS group scheduling identifier.
  • Step 44 The UE receives a MAC PDU on the PDSCH according to the demodulated control signaling, where the MAC PDU includes a data packet of at least one UE in the packet where the UE is located.
  • the MAC PDU includes a data packet of at least one UE in the packet where the UE is located.
  • Step 45 The UE sends feedback information or does not perform feedback on the feedback resource indicated by the SPS information acquired in advance according to the SPS command and the receiving of the control signaling and the MAC PDU.
  • the SPS command is an SPS activation/modification command
  • the UE successfully unmasks the control signaling sent on the PDCCH and successfully decodes the MAC PDU transmitted by the PDSCH, and the successfully decoded MAC PDU has its own data packet Then, the ACK information is fed back to the eNB through the PUCCH feedback resource configured as described above; if the UE successfully de-masks the control signaling transmitted on the PDCCH, and successfully decodes the MAC PDU transmitted on the PDSCH, but the successfully decoded MAC PDU does not have its own data.
  • the UE's resources are usually released using a dedicated SPS release command.
  • the UE successfully receives the MAC PDU transmitted on the PDSCH resource indicated by the SPS activation/modification command, and the MAC PDU has its own data, and the ACK is fed back to the corresponding PUCCH resource obtained through calculation. If the MAC PDU is received but does not have its own data, or if the UE does not successfully receive the MAC PDU, it does not feed back; meanwhile, if the UE does not successfully resolve the MAC PDU, it can listen to the possible group SPS retransmission and is pre-configured.
  • Corresponding feedback is made on the PUCCH resource or in the relative position of the CCE (Control Channel Element) according to the control signaling. For example, if 10 PUCCH resources are pre-configured, and the currently scheduled UE data is 2, the first UE uses the first PUCCH resource, and the second UE uses the second PUCCH resource.
  • Step 46 The eNB performs corresponding processing according to the feedback situation of the UE.
  • the eNB sends control signaling and schedules data of a certain UE: If the ACK is received, the control signaling and the data are considered to be successfully received by the UE; otherwise, the UE is considered not to receive the PDCCH.
  • the data of the UE may not be transmitted on the SPS resource notified by the command.
  • the eNB re-sends the PDCCH command for activation. For the UE that has received the command, the command can be understood as a modification command.
  • the eNB makes the following determination: The data of a certain UE is scheduled, and if the ACK is received, the data is successfully received by the UE; if no feedback is received, the data is not successfully received by the UE, and retransmission needs to be scheduled; if the eNB does not schedule data of a certain UE, The eNB can ignore the feedback of the UE.
  • the eNB may continue to use the group scheduling manner to schedule data of the UE, or notify the dedicated scheduling manner to retransmit the data of the UE.
  • the UE after receiving the PDSCH on the SPS resource and having its own data, the UE performs feedback on the calculated corresponding PUCCH resource; at the same time, the UE may listen to the possible group SPS retransmission and perform the Corresponding feedback.
  • the UE does not need to listen to the SPS scheduling of the group, and may be explicitly notified by signaling, or may be determined according to the configuration.
  • the SPS scheduling of the group can implement SPS group scheduling of multiple UEs in different SPS periods. For example, some UEs are SPS periods of 20 ms, and some UEs are SPS periods of 40 ms.
  • group SPS scheduling UEs using SPS periods of 20 ms only need to receive data at the time of integer multiple of +20 ms at the activation time point, and use 40 ms. The UE of the SPS cycle only needs to receive data at the time of an integral multiple of +40 ms at the activation time point.
  • the same UE group SPS scheduling and dedicated SPS scheduling cannot be activated at the same time.
  • the priority of dedicated SPS scheduling signaling is higher than the group SPS scheduling optimization level, namely:
  • the UE When the UE is using dedicated SPS scheduling for data reception, the UE no longer listens to the group SPS tone. Degree of signaling and data;
  • the dedicated SPS release command can be used to perform the 1/release; after the modification, the eNB and the UE perform the SPS transmission according to the dedicated SPS command, and the UE is no longer listening to the group.
  • the SPS schedules the signaling and data; after release, the UE does not receive the data corresponding to the previous group SPS command unless the UE listens to the group SPS activation command again.
  • the service using the SPS scheduling mode usually has a small amount of data
  • a plurality of UEs that need to use SPS scheduling are grouped together, and group scheduling is used, which can further improve the resource utilization of the PDSCH on the basis of reducing the PDCCH overhead.
  • FIG. 5 is a schematic structural diagram of a user equipment according to another embodiment of the present invention, which is used to implement the corresponding steps in the foregoing method, including an obtaining module 51, a demasking module 52, and a receiving module 53.
  • the module 51 is configured to acquire an SPS group scheduling identifier, where the user equipment shares an SPS group scheduling identifier with other user equipments in the same group;
  • the demasking module 52 is configured to receive control signaling on the PDCCH, according to the The SPS group scheduling identifier de-masks the control signaling, and obtains a de-masked control signaling user equipment that includes an SPS command, where the SPS command is used to perform SPS scheduling on the user equipment in the packet where the user equipment is located;
  • the receiving module 53 is configured to receive, according to the demodulated control signaling that includes the SPS command, a media access control MAC protocol data unit PDU on the physical downlink shared channel PDSCH, where the MAC PDU includes the packet in the user equipment.
  • the implementation may further include a feedback module, configured to send feedback information or not feedback on the feedback resource indicated by the SPS information according to the SPS command and the receiving of the control signaling and the MAC PDU.
  • a feedback module configured to send feedback information or not feedback on the feedback resource indicated by the SPS information according to the SPS command and the receiving of the control signaling and the MAC PDU.
  • the feedback module may be specifically used if the user equipment successfully unmasks the control when the PUCCH feedback resource is a dedicated PUCCH feedback resource of the user equipment, and the SPS command is an SPS activation or modification command. Signaling, and successfully decoding the MAC PDU, according to the In the SPS period, the ACK information is fed back on the PUCCH feedback resource; or, if the user equipment successfully demasks the control signaling but fails to successfully decode the MAC PDU, according to the SPS period, in the PUCCH The NACK information is fed back on the feedback resource; or, if the user equipment does not successfully unmask the control signaling, no feedback is performed;
  • the feedback module is specifically configured to: if the user equipment successfully unmasks the After the signaling is successfully decoded, and the MAC PDU is successfully decoded, the ACK information is fed back on the PUCCH feedback resource according to the SPS period; or, if the user equipment does not successfully unmask the packet Controlling signaling, or if the user equipment successfully de-masks the control signaling, but does not successfully decode the MAC PDU, or if the user equipment successfully demasks the control signaling, and successfully decodes the MAC PDU, but if there is no data packet corresponding to the user equipment in the successfully decoded MAC PDU, no feedback is performed.
  • the feedback module is specifically configured to: if the user equipment successfully unmasks the control And signaling, the ACK information is fed back on the PUCCH feedback resource according to the SPS period; or, if the user equipment does not successfully unmask the control signaling, no feedback is performed.
  • the acquiring module 51 is specifically configured to receive a radio resource control RRC message, where the RRC message carries the SPS group scheduling identifier that is allocated by the network device to the user equipment, or is used to receive a paging message.
  • the paging message carries the group identifier corresponding to the paging message, and the group identifier corresponding to the paging message is used as the SPS group scheduling identifier; or is used to obtain the SPS group scheduling identifier according to the pre-configured information.
  • the acquiring module 51 is further configured to: receive an RRC message sent by the network device, where the RRC message includes the SPS information, where the SPS information includes: an SPS period, a physical uplink control channel PUCCH feedback resource.
  • the receiving module 53 is specifically configured to receive a data packet that is transmitted by the network device, where the transmitted data packet is that the network device schedules the user equipment and receives feedback information sent by the user equipment. After being sent, the feedback information includes the ACK information or the NACK information; or, for receiving the masked control signaling that the network device retransmits on the PDCCH, the re-transmitted masked control signaling And transmitting, after the network device does not receive the feedback information sent by the user equipment.
  • FIG. 6 is a schematic structural diagram of a network device according to another embodiment of the present invention, which is used to implement the corresponding steps in the foregoing method, including a signaling sending module 61 and a data sending module 62;
  • the module 61 is configured to send the control signaling that is masked by the SPS group scheduling identifier to the first user equipment, where the control signaling includes an SPS command, where the user equipment in the same group shares an SPS group scheduling identifier.
  • the SPS command is used to perform SPS scheduling on the user equipment in the group where the first user equipment is located; the data sending module 62 is configured to send a MAC PDU to the user equipment on the PDSCH, where the MAC PDU includes the first user equipment.
  • the embodiment may further include a receiving module, configured to learn, according to the feedback situation of the first user equipment, the receiving situation of the first user equipment, where the feedback situation of the first user equipment includes: feedback indicated by the SPS information Feedback on resources or no feedback.
  • a receiving module configured to learn, according to the feedback situation of the first user equipment, the receiving situation of the first user equipment, where the feedback situation of the first user equipment includes: feedback indicated by the SPS information Feedback on resources or no feedback.
  • the receiving module may be specifically used to feed back resources in the PUCCH according to the SPS period, when the PUCCH feedback resource is a dedicated PUCCH feedback resource of the user equipment, and the SPS command is an SPS activation or modification command.
  • the SPS command is an SPS activation or modification command.
  • the receiving module is specifically configured to: if received according to the SPS period, receive on the PUCCH feedback resource After the ACK information is sent back to the first user equipment, the first user equipment is successfully masked by the first user equipment, and the data packet corresponding to the first user equipment is successfully decoded after the MAC PDU is successfully decoded; or If the information fed back by the first user equipment is not received, it is learned that the first user equipment does not successfully unmask the control signaling, or the first user equipment successfully unmasks the control signaling. However, the MAC PDU is not successfully decoded, or the first user equipment successfully demasks the control signaling, and successfully decodes the MAC PDU, but the first user equipment does not correspond to the successfully decoded MAC PDU. Data packet
  • the receiving module is specifically configured to receive on the PUCCH feedback resource according to the SPS period. Obtaining the ACK information that is fed back by the first user equipment, and learning that the first user equipment successfully unmasks the control signaling; or, if the feedback information of the first user equipment is not received, knowing that the first user equipment is not The control signaling is successfully masked.
  • the signaling sending module 61 is further configured to send an RRC message to the first user equipment, where the RRC message carries an SPS group scheduling identifier that is allocated by the network device to the first user equipment, so that Decoding the control signaling according to the SPS group scheduling identifier; or sending a paging message to the first user equipment, where the paging message carries a group identifier corresponding to the paging message So that the first user equipment demasks the control signaling according to the group identifier.
  • the signaling sending module 61 is further configured to send an RRC message to the first user equipment, where the RRC message includes the SPS information, where the SPS information includes: an SPS period, a PUCCH feedback resource.
  • the data sending module 62 is further configured to: if the network device receives the feedback information sent by the first user equipment, transmit the number of the first user equipment according to the SPS resource. According to the packet, the feedback information includes the ACK information or NACK information;
  • the signaling sending module 61 is further configured to: if the network device does not receive the information fed back by the first user equipment, resend the masking control to the first user equipment on the PDCCH. Signaling.
  • the foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The foregoing steps of the method embodiment; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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

Abstract

La présente invention concerne un procédé de planification semi-continue (SPS), un équipement utilisateur et un dispositif réseau. Selon ce procédé, un premier équipement utilisateur fait l'acquisition d'un identifiant de planification de groupe SPS, et ledit identifiant est partagé par un équipement utilisateur du même groupe; le premier équipement utilisateur reçoit un signal de commande masqué sur un PDCCH, démasque le signal de commande sur la base de l'identifiant de planification du groupe SPS, fait l'acquisition d'un signal de commande démasqué comprenant une instruction SPS, ladite instruction étant destinée à être utilisée dans la planification de l'équipement utilisateur du même groupe dans lequel le premier équipement utilisateur est établi; sur la base du signal de commande démasqué comprenant l'instruction SPS, le premier équipement utilisateur reçoit une PDU MAC sur le PDCCH, la PDU MAC comprenant un paquet de données d'au moins un équipement utilisateur au sein du groupe dans lequel le premier équipement utilisateur est établi. Des réalisations de la présente invention permettent de conserver des ressources sur le PDCCH, d'accroître la capacité du système et le taux d'utilisation des ressources.
PCT/CN2012/070477 2011-01-17 2012-01-17 Procédé de planification semi-continue, équipement utilisateur et dispositif réseau Ceased WO2012097724A1 (fr)

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US20150341858A1 (en) * 2014-05-21 2015-11-26 Qualcomm Incorporated Apparatus, methods, and computer program products providing power savings in sps-configured volte with c-drx
CN105898867A (zh) * 2014-08-28 2016-08-24 阿尔卡特朗讯 覆盖范围增强的mtc ue的寻呼方法和装置
CN105429736B (zh) * 2015-11-02 2020-01-07 电信科学技术研究院 一种发送和接收反馈的方法及设备
JP6674050B2 (ja) 2016-05-13 2020-04-01 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． スケジューリング方法、装置およびシステム
CN108811166B (zh) 2017-05-05 2020-04-21 维沃移动通信有限公司 随机接入响应消息的发送、接收方法及发送、接收装置
CN110856120B (zh) * 2018-08-20 2022-03-11 北京中兴高达通信技术有限公司 一种报文发送、接收方法及装置
CN111371532B (zh) * 2018-12-26 2022-12-02 华为技术有限公司 信息传输方法及装置
US20240306138A1 (en) * 2021-01-18 2024-09-12 Telefonaktiebolaget Lm Ericsson (Publ) Activation and recovery of sps transmissions

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