WO2018171387A1 - 一种数据发送、反馈方法及装置、设备、存储介质 - Google Patents
一种数据发送、反馈方法及装置、设备、存储介质 Download PDFInfo
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- WO2018171387A1 WO2018171387A1 PCT/CN2018/077277 CN2018077277W WO2018171387A1 WO 2018171387 A1 WO2018171387 A1 WO 2018171387A1 CN 2018077277 W CN2018077277 W CN 2018077277W WO 2018171387 A1 WO2018171387 A1 WO 2018171387A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- H—ELECTRICITY
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- H04W72/02—Selection of wireless resources by user or terminal
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- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
- H04L1/0043—Realisations of complexity reduction techniques, e.g. use of look-up tables
- H04L1/0044—Realisations of complexity reduction techniques, e.g. use of look-up tables specially adapted for power saving
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- H—ELECTRICITY
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- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
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- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
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- H—ELECTRICITY
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- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H04L1/189—Transmission or retransmission of more than one copy of a message
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- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
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- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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Definitions
- the present invention relates to the field of wireless communications, and in particular, to a data sending and feedback method, device, device, and storage medium.
- New Radio New Radio
- 3GPP 3rd Generation Partnership Project
- the new RF technology targets three usage scenarios: Enhanced Mobile Broadband (eMBB), Massive Machine Type Communications (mMTC) and Ultra-Reliable and Low-latency Communications (Ultra-Reliable and Low Latency Communications, URLLC).
- eMBB Enhanced Mobile Broadband
- mMTC Massive Machine Type Communications
- URLLC Ultra-Reliable and Low-latency Communications
- the Grant-free transmission mechanism (Grant-free) has been accepted by the standards organization.
- the grant-free sending process is: pre-configuring a set of exempt resources for the terminal device; after the data packet arrives, the terminal device selects an exempt resource-sending data packet in the pre-configured set of exempt resources; the different terminal devices allow Share the same set of grant-free resources. So far, there is no good solution for defining grant-free resources for upstream grant-free delivery.
- the embodiments of the present invention provide a data sending method, a device, a device, and a storage medium, which are used to solve the problem of how to define a resource-free resource in the prior art.
- a feedback method and device, device, and storage medium are provided for reducing power loss when a terminal receives feedback.
- the embodiment of the invention provides a data sending method, and the method includes:
- the grant-free resource is: consecutive K time slots of one frequency band, wherein the K is an integer greater than zero.
- An embodiment of the present invention further provides a feedback method, where the method includes:
- Feedback via the terminal device proprietary signal is one of the following:
- the embodiment of the present invention further provides a data sending apparatus, where the apparatus includes: a selecting module and a sending module;
- Select a module configured to select an exempt resource
- a sending module configured to send a data packet by using the selected grant-free resource
- the grant-free resource is: consecutive K time slots of one frequency band, wherein the K is an integer greater than zero.
- the embodiment of the present invention further provides a feedback device, where the device includes a notification module and a feedback module;
- a notification module configured to notify the feedback module
- the feedback module is configured to, after receiving the notification, feed back one of the following through the terminal device proprietary signal: the data packet is successfully decoded, and the data packet decoding fails.
- Embodiments of the present invention provide a computer readable storage medium having stored thereon a computer program, which is implemented by a processor to implement the steps of the data transmission method; or, when the computer program is executed by a processor, The steps of the data feedback method described.
- An embodiment of the present invention provides a data transmitting device, including a memory and a processor, where the memory stores a computer program executable on a processor, and when the processor executes the program, the data transmitting method according to the above claims is implemented. step.
- Embodiments of the present invention provide a data feedback device including a memory and a processor, where the memory stores a computer program executable on a processor, and the processor implements the steps of the data feedback method when the program is executed.
- an exempt resource is selected to send a data packet;
- the exempt resource is: a continuous K time slots of one frequency band, where the K It is an integer greater than 0; thus, a setting mode is provided for the uplink grant-free resource, so that the terminal device can better utilize the grant-free resource; in addition, according to the method, one grant-free resource can support at most K times of the data packet. Repeated transmission, which improves the reliability of sending packets in a grant-free manner.
- one of the following is fed back through a proprietary signal of the terminal device: the data packet is successfully decoded, and the data packet decoding fails; thus, the terminal device does not need to be demodulated. And the decoding process only needs to detect whether the data packet is successfully decoded by detecting the receiving energy of the terminal device proprietary signal, thereby reducing the power loss of the terminal device when receiving feedback.
- FIG. 1 is a flowchart of a data transmitting method according to a first embodiment of the present invention
- FIG. 2 is a schematic diagram of a grant-free resource according to a second embodiment of the present invention.
- FIG. 3 is a schematic diagram of a grant-free resource according to a third embodiment of the present invention.
- FIG. 4 is a schematic diagram of a grant-free resource according to a fourth embodiment of the present invention.
- FIG. 5 is a schematic diagram of a grant-free resource according to a fifth embodiment of the present invention.
- FIG. 6 is a schematic diagram of a downlink control information for uplink granting by a terminal device to retransmit a data packet on a granted resource according to a sixth embodiment of the present invention
- FIG. 7 is a schematic diagram of a downlink control information for uplink granting by a terminal device to retransmit a data packet on a granted resource according to a seventh embodiment of the present invention
- FIG. 8 is a schematic diagram of a downlink control information for uplink granting by a terminal device to retransmit a data packet on a granted resource according to an eighth embodiment of the present invention
- FIG. 9 is a schematic diagram of a common downlink control information triggering terminal device retransmitting a data packet on a preset retransmission resource according to an eighth embodiment of the present invention.
- FIG. 10 is a schematic diagram of a public downlink control information triggering terminal device retransmitting a data packet on a resource indicated by a retransmission resource index according to a ninth embodiment of the present invention.
- FIG. 11 is a schematic structural diagram of a data sending apparatus according to an embodiment of the present invention.
- FIG. 12 is a schematic structural diagram of a feedback apparatus according to an embodiment of the present invention.
- the embodiment of the present invention provides a data transmission method and device, which can be applied to a terminal device.
- the terminal device may be a device that forms a wireless communication connection with a network side device (for example, a base station), for example, may be a mobile terminal, or the like.
- a network side device for example, a base station
- the type of the wireless communication technology used by the terminal device or the type of the wireless communication network to be accessed is not limited.
- the terminal device may include a transmitter for transmitting a signal to the network side and a receiver for receiving a signal on the network side, wherein the receiver may employ a Serial Interference Cancellation (SIC) technique to improve reception performance.
- SIC Serial Interference Cancellation
- the terminal device may be pre-configured with an exempt resource pool, and the exempt resource pool is a set of exempt resources; wherein, an exempt resource may be a time-frequency resource.
- the terminal device may use a grant-free resource to send a data packet.
- the size, type, and the like of the data packet sent by the terminal device are not limited.
- the first embodiment of the present invention provides a data transmission method, which can be applied to a terminal device.
- FIG. 1 is a flowchart of a data sending method according to a first embodiment of the present invention. As shown in FIG. 1, the process may include:
- Step 101 Select an exempt resource to send a data packet
- the grant-free resource is: consecutive K time slots of one frequency band, wherein the K is an integer greater than zero.
- a setting manner is provided for the uplink grant-free resources, so that the terminal device can better utilize the grant-free resources; in addition, according to the method, an exempt-grant resource can support at most K times of repeated transmission of the data packet, which improves the The reliability of sending packets in a grant-free manner.
- a scheme for granting grant-free resources is given for grant-free grants that are uplinked in a URLLC scenario.
- the number of Hybrid Automatic Repeated ReQuest (HARQ) processes used by the data packet is 0 or 1.
- the terminal device supports at most two HARQ processes; for example, in the case of supporting one HARQ process, the number of the HARQ process used by the data packet is fixed to 0; in the case of supporting two HARQ processes, The number of the HARQ process used by the data packet is 0 or 1.
- the method adapts to avoid the service characteristics of small traffic when transmitting, and simplifies the complexity of the HARQ process identification when the transmission is granted.
- one of the bands described above is one of the following:
- One of the pre-configured frequency bands one of the pre-configured multiple frequency bands.
- the one of the plurality of pre-configured frequency bands indicates that the one frequency band is one of the plurality of frequency bands, and the plurality of frequency bands are pre-configured.
- the pre-configured one frequency band or the pre-configured multiple frequency bands are logical frequency bands, and one logical frequency band may correspond to the same or different physical frequency bands in different time slots.
- the time slots (sometimes referred to as minislots) are available or available time slots (ie, logical time slots), in other words, the consecutive K time slots may be physically consecutive K time slots. It can also be physically non-contiguous K time slots.
- the time slot is a time unit occupied by one transmission of a data packet, and one exemption resource including consecutive K time slots can support a continuous K transmission repeated transmission of at most one data packet.
- the first time slot of the consecutive K time slots is one of: one of all time slots of the one frequency band One time slot, one time slot in the first time slot set of the one frequency band.
- the time slot index I slot of one time slot in the first time slot set described above satisfies the following conditions:
- N is an integer greater than 0.
- mod represents a remainder operation.
- the transmission delay of the data packet can be minimized; if the continuous The first time slot of the K time slots is one time slot in the first time slot set of the one frequency band, and one grant-free resource can only start at a specific time in every consecutive K time slots of the frequency band.
- Gap which is beneficial to support Hybrid Automatic Repeat reQuest (HARQ) merging; through the early termination mechanism (that is, when a data packet is successfully received by the network, the terminal device terminates the data packet ahead of time to grant resources freely.
- HARQ Hybrid Automatic Repeat reQuest
- the first time slot of the consecutive K time slots is the second time of the xth frequency band.
- One slot in the slot set; the x is an integer greater than 0 and less than X, the X representing the number of the pre-configured plurality of frequency bands.
- slot index I slot (2) of one slot in the second slot set may satisfy the following conditions:
- the first time slot of the consecutive K time slots is one time slot in the second time slot set of the xth frequency band, then an exempt resource can only start in the frequency band.
- a specific time slot in each consecutive K time slots which is advantageous for supporting HARQ combining; by means of an early termination mechanism (ie, when a data packet is successfully received by the network, the terminal device terminates the data packet in advance to grant the resource-free transmission)
- the combination of the later K slots in a grant-free resource includes a smaller collision probability of the later slots, thereby facilitating the improvement of the receiving performance of the terminal device.
- the slot index is an index of a slot in all slot ranges included in consecutive P radio frames. For example, if each radio frame includes consecutive Q slots, then consecutive P radio frames include a total of consecutive P ⁇ Q slots; for the qth slot in the pth radio frame, its corresponding slot index Is (p-1) ⁇ Q+q-1; wherein, P and Q are integers greater than 0, and p is an integer greater than or equal to 1 and less than or equal to P, and q is an integer greater than or equal to 1 and less than or equal to Q.
- the selecting a grant-free resource to send a data packet includes: when the one frequency band is one of a plurality of pre-configured frequency bands, selecting to send according to a time of arrival of the data packet Packets are exempt from resources.
- the grant-free resource of the transmit data packet is an exempt-grant resource located at a time when the data packet arrives and is closest to the arrival time of the data packet in all the exempt resources of the pre-configured multiple frequency bands;
- the terminal device can select the packet with the lowest transmission delay to send the data packet according to the arrival time of the data packet, which is beneficial to reducing the packet transmission delay.
- feedback from the network side may also be received after the first time slot of the grant-free resource; the feedback includes at least one of: a terminal device-specific signal, for uplink grant Downlink control information and public downlink control information.
- the network side may be a device such as a base station, and the terminal device-specific signal is a signal pre-configured by the network-side device to each terminal, and the terminal device-specific signal is only sent to the corresponding terminal device.
- the downlink control information includes uplink grant information of the terminal device, and is used to specify, for the terminal device, an uplink grant resource that can be used for retransmitting the data packet;
- the downlink control information that is uplinked may include uplink grant information of one terminal device, and may also include uplink grant information of multiple terminal devices.
- the downlink control information for the uplink grant only allows the uplink grant information including the unique terminal device.
- different downlink control for the uplink grant is adopted for multiple terminal devices respectively.
- the downlink control information for uplink granting allows for including one terminal device and also allowing uplink grant information including multiple terminal devices (downlink control for uplink grant when only one terminal device needs to provide uplink grant information)
- the information includes only the uplink grant information of the terminal device.
- the downlink control information for the uplink grant includes the uplink grant information of the multiple terminal devices.
- the common downlink control information is located in a common search space or a group search space, and the size of the common downlink control information is equal to the size of the downlink control information used for uplink grant.
- the feedback from the network side may be received at a set time after the first time slot of the grant-free resource
- the set time includes at least one of the following:
- the second preset time slot is located after the first preset time slot.
- the third preset time slot is not limited, and only the third preset time slot is located after the resource is not granted. Just fine.
- receiving the feedback from the network side in the third preset time slot after the resource-free grant is equivalent to the feedback timing using the synchronization, which is beneficial to reducing the delay and the number of blind detections.
- the downlink control information used for uplink grant may include a new data packet indicator
- the new data packet indicator is used to indicate whether the downlink control information used for the uplink grant is a resource grant for data packet forwarding or a data packet retransmission.
- the common downlink control information may be used to simultaneously indicate a receiving status of the corresponding data packet to the multiple terminal devices;
- the receiving state includes at least one of the following: the data packet is successfully decoded, the data packet is not successfully decoded, the data packet is detected but the decoding fails, and the data packet is not detected.
- the network side can feed back the status of the data packet received by the network side to the corresponding terminal device through the common downlink control information. For example, after the terminal device starts to send the data packet 1 to the network side, the network side can send the public to the terminal device.
- the downlink control information indicates that the network side receives the data packet but does not decode successfully in the public downlink control information.
- the common downlink control information when the common downlink control information indicates that the receiving state of the data packet is that the data packet is detected but the decoding fails, the common downlink control information is further used to indicate at least one of the following information: the terminal device transmits An adjustment amount of power, an index of retransmission resources, where the retransmission resource belongs to a set of pre-configured retransmission resources.
- the public downlink control information may be sent to the terminal device, and the public downlink control information is sent to indicate that the network side receives the data packet.
- the receiving state and the terminal device perform corresponding processing (for example, adjusting the terminal device transmitting power, or re-uploading the data packet using the retransmission resource).
- the terminal device may adjust the transmission power according to the adjustment amount.
- the received power difference between different terminal devices can be realized, which helps to improve the performance of the receiver using the SIC.
- the cyclic redundancy check CRC scrambling identifier of the common downlink control information may be determined according to at least one of the following manners: setting a fixed CRC scrambling identifier, using a pre-configured CRC scrambling identifier, The index of the grant-free resource pool in which the resource is granted determines the CRC scrambling identifier.
- determining the CRC scrambling identifier according to the index of the grant-free resource pool in which the resource is granted is included: the different grant-free resource pools are corresponding to different common downlink control information.
- the CRC scrambling identifier of the common downlink control information may be determined in a combined manner, for example, if the CRC scrambling identifier (ie, default) is not pre-configured, the fixed CRC scrambling identifier is used, otherwise the pre-configured CRC is used. Disturbance logo.
- the location of the feedback information corresponding to the terminal device in the common downlink control information may be determined according to at least one of the following manners: using the pre-configured terminal device The location of the corresponding feedback information determines the location of the feedback information corresponding to the terminal device according to the index of the demodulation reference signal pre-configured to the terminal device.
- the location of the information corresponding to the terminal device in the common downlink control information may be determined in a combined manner, for example, in the case where the location of the feedback information corresponding to the terminal device is not pre-configured (ie, default), according to the demodulation reference
- the index of the signal determines the location of the feedback information corresponding to the terminal device in the common downlink control information, otherwise the location of the feedback information corresponding to the pre-configured terminal device is used.
- the location of the information corresponding to the terminal device in the common downlink control information is determined according to the index of the demodulation reference signal, including: in a case where the different grant-free resource pools are in one-to-one correspondence with different common downlink control information,
- the demodulation reference signal has a one-to-one correspondence with different information positions.
- the terminal device-specific signal is used to indicate to the terminal device that the data packet is successfully decoded; for example, if the terminal device detects the terminal device If there is a signal, it can be determined that the network side receives the data packet and successfully decodes the data packet. In other words, the network side device transmits the terminal device specific signal to the terminal device only when it is determined that the data packet is successfully decoded; otherwise, the terminal device specific signal is not transmitted to the terminal device.
- the terminal device successfully detects the terminal device-specific signal it determines that the data packet decoding is successful; otherwise, it determines that the data packet decoding fails.
- the manner in which the terminal device detects the terminal device-specific signal includes: determining that the terminal device-specific signal is detected when the received energy of the terminal device-specific signal exceeds a set or pre-configured threshold value; otherwise, determining that the terminal device-specific signal is detected; Terminal device proprietary signal. In this way, the terminal device does not need the demodulation and decoding process, and only needs to detect the received energy of the terminal device's proprietary signal to determine whether the data packet is successfully decoded, thereby reducing the power loss of the terminal device when receiving feedback.
- the feedback when the feedback includes the terminal device-specific signal, at least one of the following is determined by a pre-configured manner:
- a time-frequency resource for transmitting the terminal device proprietary signal is allowed.
- sequence used by the terminal device proprietary signal may be one of the following:
- the type (or form) of the sequence used by the terminal device-specific signal is a Zadoff-Chu sequence. Or a product of a Zadoff-Chu sequence and a pseudo noise PN sequence;
- the type (or form) of the sequence used by the terminal device-specific signal is a pseudo noise PN sequence or a cyclic extension sequence of a Zadoff-Chu sequence or a product of a cyclic extension sequence of a Zadoff-Chu sequence and a pseudo noise PN sequence.
- the pre-configuration manner of the terminal device on the network side may include at least one of the following: configuration by dynamic signaling, configuration by broadcast signaling, configuration by RRC message specific to the terminal device.
- the dynamic signaling described above may be specific to one terminal device or may be proprietary to a group of terminal devices; preferably, the dynamic signaling may include downlink control information signaling.
- the time-frequency resource for transmitting the terminal device-specific signal may be allowed in the feedback time slot by using the terminal device-specific RRC message configuration.
- the terminal device-specific signal sequence related parameter may be configured to the terminal device by using a terminal device-specific RRC message, where the related parameter includes one of: an index of a sequence used by the terminal device-specific signal in the set sequence set,
- the set sequence set is a set of all sequences that can be used by the terminal device-specific signal; the set parameter, wherein the sequence used by the terminal device-specific signal can be calculated according to the set parameter.
- the data packet transmission process may be processed according to the feedback and in the following manners.
- the first condition includes at least one of the following:
- the feedback is common downlink control information, and the common downlink control information indicates that the receiving state of the data packet is decoding success.
- the data packet After receiving the feedback from the network side, when the second condition is met, the data packet is resent in the preset retransmission resource;
- the second condition includes at least one of the following:
- the feedback is the common downlink control information;
- the common downlink control information indicates that the receiving state of the data packet is one of the following: no decoding succeeds, the data packet is detected but the decoding fails, and no data packet is detected;
- the common downlink control information does not include the indication information of the index of the retransmitted resource.
- the preset retransmission resource satisfies at least one of the following:
- the frequency band occupied by the preset retransmission resource is the same as the frequency band of the resource-free resource;
- the preset retransmission resource includes consecutive K time slots
- the preset retransmission resource starts by default with a fourth preset time slot after receiving the time slot of the feedback.
- the context of the fourth preset time slot and other preset time slots is not limited, and it is only necessary to ensure that the fourth preset time slot is located after the time slot of the feedback.
- the resource indicated by the index of the retransmission resource resends the data packet
- the third condition includes: the feedback is public downlink control information, and the common downlink control information includes indication information of an index of a retransmission resource;
- the third condition further includes at least one of the following:
- the common downlink control information indicates that the reception status of the data packet is that the data packet is detected but the decoding fails.
- the resource indicated by the index of the retransmission resource satisfies at least one of the following:
- the resource indicated by the index of the retransmission resource includes consecutive K time slots
- the resource indicated by the index of the retransmission resource starts by default in a fifth preset time slot after receiving the time slot of the feedback.
- the context of the fifth preset time slot and other preset time slots is not limited, and it is only necessary to ensure that the fifth preset time slot is located after the time slot of the feedback.
- the data packet After receiving the feedback from the network side, when the fourth condition is met, the data packet is terminated early in the transmission of the grant-free resource, and the resource indicated by the index of the retransmitted resource resends the data packet.
- the fourth condition includes: the feedback is public downlink control information, and the common downlink control information includes indication information of an index of a retransmission resource;
- the fourth condition further includes at least one of the following:
- the common downlink control information indicates that the reception status of the data packet is that the data packet is detected but the decoding fails.
- the resource indicated by the index of the retransmission resource satisfies one of the following:
- the resource indicated by the index of the retransmission resource starts by default to a sixth preset time slot after receiving the time slot of the feedback, and defaults to the last time slot of the exempted resource;
- the resource indicated by the index of the retransmission resource includes consecutive K time slots, and the default starts with a sixth preset time slot after receiving the feedback time slot.
- the context of the sixth preset time slot and other preset time slots is not limited, and it is only necessary to ensure that the sixth preset time slot is located after the time slot of the feedback.
- the premature termination of the sending of the data packet in the grant-free resource may include:
- the first time slot preceding the resource indicated by the index of the retransmission resource terminates the transmission of the data packet in the grant-free resource.
- the resource indicated by the downlink control information for uplink grant resends the data packet
- the fifth condition includes: receiving feedback in a third preset time slot after the granting of the resource; the feedback is downlink control information used for uplink granting;
- the data packet After receiving the feedback from the network side, when the sixth condition is met, the data packet is terminated early in the transmission of the grant-free resource and the data packet is retransmitted in the resource indicated by the downlink control information for uplink grant. ;
- the sixth condition includes: ending from a first preset time slot after the first time slot of the grant-free resource to a second preset time slot before the last time slot of the resource-free grant, Feedback from the network side is received; the feedback is downlink control information for uplink grant.
- the premature termination of the sending of the data packet in the grant-free resource may include:
- the data packet is terminated in advance to grant the resource-free transmission; or, by default, the eighth preset time slot after receiving the feedback time slot is terminated early. And transmitting, by the downlink control information, the early termination time slot of the data packet in the transmission of the grant-free resource, and terminating the early termination time slot in the early termination time slot.
- the data packet is sent in the exempt grant resource.
- the context of the eighth preset time slot and other preset time slots is not limited, and it is only necessary to ensure that the eighth preset time slot is located after the time slot of the feedback.
- the resource indicated by the downlink control information for uplink grant meets at least one of the following:
- the resource indicated by the downlink control information for uplink grant includes consecutive Z time slots, the Z is an integer greater than 0, and the value of Z is indicated by downlink control information for uplink grant;
- the resource indicated by the downlink control information for uplink grant defaults to a seventh preset time slot after receiving the time slot of the feedback, or indicated by downlink control information for uplink grant.
- the value of Z is independent of the value of K, and the context of the seventh preset time slot and other preset time slots is not limited, and it is only necessary to ensure that the seventh preset time slot is located after the time slot of feedback.
- the terminal device when the terminal device receives the downlink control information for the uplink grant and the common downlink control information, the common downlink control information is ignored, and is retransmitted according to the downlink control information used for the uplink grant. data pack.
- the downlink control information for uplink grant has a higher priority than the common downlink control information. It should be noted that, if the downlink control information for uplink grant is the first preset time slot after the first time slot of the grant-free resource, the last time slot of the resource-free grant is started. If the previous second preset time slot ends, the operation of the terminal device further includes premature termination of the data packet in the transmission of the exempt resource.
- the terminal device may no longer receive the feedback, or determine whether to receive the feedback according to the size of the K; for example, according to the size according to the K Determining whether to receive the feedback, if K is greater than a set threshold or a pre-configured threshold, no feedback is received, otherwise, the terminal device may receive feedback.
- FIG. 2 is a schematic diagram of a grant-free resource according to a second embodiment of the present invention.
- all available grant-free resources are located in the same frequency band; the frequency band is pre-configured to the terminal device, for example, by using a terminal device-specific Radio Resource Control (RRC) message as the terminal device.
- RRC Radio Resource Control
- Configuring frequency band information in which the resource is not granted; any grant-free resource includes consecutive 8 (ie, K 8) time slots of the frequency band; any time slot of the frequency band can be used as a grant-free resource for 8 consecutive times
- the first time slot in the slot, that is, an exempt grant resource can begin in any one of the time slots of the band.
- the transmission delay of the data packet can be minimized;
- a drawback of the second embodiment of the present invention is that it is not conducive to supporting Hybrid Automatic Repeat reQuest (HARQ) merging due to the uncertainty of the first time slot of the resource-free grant, and, in addition, the resource is exempt from granting The uncertainty of the first time slot, the network side cannot determine the last termination time of consecutive K time slots, and thus it is difficult to judge whether the retransmission is currently triggered.
- HARQ Hybrid Automatic Repeat reQuest
- FIG. 3 is a schematic diagram of a grant-free resource according to a third embodiment of the present invention.
- all available grant-free resources are located in the same frequency band; the frequency band is pre-configured to the terminal device, for example, through a terminal device.
- the I slot represents a time slot index of the first time slot of the consecutive 8 time slots included in the grant-free resource; that is, an exempt grant resource can only start every 8 consecutive time slots of the frequency band.
- the first time slot in .
- an exempt grant resource when the data packet is transmitted by using the grant-free resource, an exempt grant resource can only start in a specific time slot in every 8 consecutive slots of the frequency band, which is advantageous for supporting HARQ combining;
- the termination mechanism ie, when the data packet is successfully received by the network, the terminal device terminates the transmission of the data packet in the grant-free resource in advance), and the later slot conflict in the consecutive K time slots included in the grant-free resource The probability is smaller, which is beneficial to improve the receiving performance of the terminal device.
- FIG. 4 is a schematic diagram of a grant-free resource according to a fourth embodiment of the present invention.
- all available exempt resources are located in the same frequency band; the frequency band is pre-configured to the terminal device, for example, through a terminal device.
- the I slot represents a time slot index of the first time slot of the consecutive 8 time slots included in the grant-free resource; that is, an exempt grant resource can only start every 4 consecutive time slots of the frequency band.
- the first time slot in .
- the fourth embodiment of the present invention adopts the compromise scheme of the second embodiment and the third embodiment of the present invention, that is, the support of the transmission delay of the data packet and the HARQ combining are simultaneously considered.
- FIG. 5 is a schematic diagram of a grant-free resource according to a fifth embodiment of the present invention.
- all available grant-free resources are distributed in two frequency bands (ie, the grant-free resource pool in which the resource-free resource is located includes two frequency bands.
- a time slot of the first frequency band that satisfies the following condition may be used as the first time slot of the consecutive eight time slots included in one of the first frequency bands:
- the I slot 1 represents a slot index of the first one of the consecutive eight slots included in the first band, and that is, an exempt resource of the first band can only be granted. Starts in the first of every eight consecutive time slots of the first frequency band.
- a time slot of the second frequency band that satisfies the following condition can be used as the first time slot of the consecutive eight time slots included in one of the second frequency bands:
- the I slot 2 represents a time slot index of the first time slot of the consecutive 8 time slots included in the resource-free one of the second frequency band; that is, one of the second frequency bands can be granted only resources. Starting at the 5th time slot of every 8 consecutive time slots of the second frequency band.
- the fifth embodiment of the present invention there is a fixed offset of 4 slots for the start time of a grant-free resource of the first frequency band and the second frequency band.
- the advantage of this method is that the problem of HARQ merging and packet transmission delay is solved at the same time; by combining with the early termination mechanism, the probability of the later slot collision in the consecutive K slots included in the grant-free resource is smaller. Therefore, it is advantageous to improve the receiving performance; the defect is that more frequency bands need to be pre-configured, resulting in relatively low resource utilization efficiency.
- the terminal device determines which of the exempt resources is selected to transmit the data packet according to the arrival time of the data packet. For example, if the data packet arrives in the second time slot, then in all the exempt resources of any one frequency band, the grant-free resource located after the second time slot and closest to the second time slot is the beginning of the second frequency band.
- the fifth time slot is exempt from granting resources; at this time, the terminal device selects the exempt resource-sending data packet starting from the 5th time slot of the second frequency band, that is, the terminal device selects the minimum transmission delay according to the arrival time of the data packet.
- the grant-free resource sends packets.
- FIG. 6 is a schematic diagram of a downlink control information for uplink granting by a terminal device to retransmit a data packet on a granted resource according to a sixth embodiment of the present invention.
- a rectangular box filled with scatter indicates that the uplink is granted.
- the downlink control information, the rectangular box filled with the slashes indicates the uplink grant-free resources, and the rectangular box filled with the cross-line indicates the uplink grant resource; it can be seen that one grant-free resource includes 8 consecutive slots; After transmitting the data packet in the first time slot, the terminal starts receiving the feedback from the network side in the third time slot of the grant-free resource until the end of the sixth time slot of the grant-free resource; the feedback includes the downlink control information for the uplink grant. And public downlink control information.
- the downlink control information used for the uplink grant is used to trigger the terminal device to terminate the transmission of the data packet within the lease-free resource range and resend the data packet on the uplink grant resource.
- the downlink control information for uplink grant is received on the third time slot of the resource-free grant, and the uplink grant resource includes only one time slot and starts by default for downlink control information for uplink grant.
- the second time slot after the second time slot ie, the fifth time slot exempt from the resource
- the transmission of the data packet of the terminal device in the exempted resource is terminated in advance in the first time slot before the resource granted in the uplink (ie, The 4th time slot of the resource is granted) and the data packet is retransmitted on the uplink granted resource.
- the common downlink control information is used to indicate whether the receiving state of the data packet is decoding success (ACK) or no decoding success (non-ACK); if the receiving state of the data packet is ACK, the common downlink control information is also used to trigger the terminal device immediately. Terminate the sending of packets within the scope of the exempt resources.
- the CRC scrambling identifier of the public downlink control information (the terminal device uses the identifier to blindly detect the common downlink control information) is semi-statically configured to the terminal device on the network side.
- the location of the feedback information corresponding to the terminal device in the common downlink control information is also semi-statically configured to the terminal device.
- the payload of the common downlink control information is assumed to include 16 bits, and the terminal device is indicated by the terminal-specific RRC message.
- the corresponding feedback information is the 4th bit of the 16 bits.
- the semi-static configuration method improves the flexibility of network operation, so that the network can adaptively adjust the amount of common downlink control information required according to actual service conditions and more efficiently utilize common downlink control information bits, thereby improving feedback. Resource utilization efficiency.
- the uplink-granted resource starts from the second time slot after the downlink control information for uplink granting, but the actual time is not limited thereto, for example, from the perspective of improving scheduling flexibility.
- the start time slot of the uplink grant resource may be dynamically indicated by the downlink control information for the uplink grant; in this case, the sending of the data packet in the exempt grant resource of the terminal device always terminates in advance in the uplink grant.
- the first time slot before the resource or always terminates early in the fixed time slot after the downlink control information granted in the uplink (the fixed time slot depends on the decoding time required to decode the downlink control information, for example, if the decoding time is 1 time slot, the fixed time slot is the second time slot after the uplink control information is granted in the uplink), or the early control of the data packet transmission within the grant-free resource is indicated by the downlink control information for the uplink grant Time slot.
- the purpose of the network to send the uplink grant is to switch the transmission of the data packet to the uplink grant resource as soon as possible to reduce the collision with other data packets, the transmission of the data packet in the exempt grant resource is terminated early in the downlink granted in the uplink grant.
- the fixed time slot after the control information is relatively better.
- FIG. 7 is a schematic diagram of a public downlink control information triggering terminal device retransmitting a data packet on a resource indicated by a retransmission resource index according to a seventh embodiment of the present invention. As shown in FIG. 7, a rectangular frame filled with scatter indicates a public downlink.
- Control information a rectangular box filled with a slash indicates an uplink grant-free resource, a rectangular box filled with a cross line indicates a pre-configured first retransmission resource, and a rectangular box filled with a horizontal line indicates a pre-configured second retransmission resource;
- one grant-free resource includes eight consecutive time slots; after transmitting the data packet in the first time slot using the grant-free resource, the terminal device starts at the third time slot exempt from granting resources. The feedback from the network side is received until the 6th time slot of the grant-free resource ends; the feedback includes downlink control information for uplink grant and common downlink control information.
- the downlink control information used for the uplink grant is used to trigger the terminal device to terminate the transmission of the data packet within the unlicensed resource range and resend the data packet on the uplink grant resource; an example is shown in FIG. 6 (refer to Corresponding content of the six embodiments).
- the common downlink control information is used to indicate that the reception status of the data packet is decoding success (ACK) or detecting the data packet but decoding failure (NACK) or no data packet detection (DTX). If the receiving state of the data packet is ACK, the common downlink control information is further used to trigger the terminal device to immediately terminate the sending of the data packet within the exempted resource range; if the receiving state of the data packet is NACK, the common downlink control The information further indicates that the index of the retransmitted resource is sent to the terminal device, and the triggering terminal device terminates the sending of the data packet within the scope of the exempted resource in advance, and retransmits the data packet on the resource indicated by the index of the retransmitted resource;
- a resource is a collection of pre-configured retransmission resources.
- the common downlink control information is received on the third time slot of the resource-free grant; the first time after the terminal device terminates the transmission of the data packet within the grant-free resource range, the public downlink control information is terminated.
- a time slot ie, the 4th time slot exempt from the resource
- the set of pre-configured retransmission resources includes two retransmission resources (represented as a pre-configured first retransmission resource and a pre-configured second retransmission resource) And all start at the second time slot after the common downlink control information (ie the 5th time slot exempt from granting resources) and all end at the last time slot of the grant-free resource (ie the first grant-free resource) 8 timeslots);
- the common downlink control information indicates that the retransmission resource corresponding to the index of the retransmission resource of the terminal device is a pre-configured first retransmission resource, and the terminal device retransmits on the pre-configured first retransmission resource. data pack.
- FIG. 8 is a schematic diagram of a downlink control information for uplink granting by a terminal device to retransmit a data packet on a granted resource according to an eighth embodiment of the present invention.
- a rectangular box filled with scatter indicates a downlink for uplink grant.
- the control information is filled with a slanted rectangle to indicate an uplink grant-free resource, and a rectangular box filled with a cross-line indicates an uplink grant resource;
- FIG. 9 is a public downlink control information triggering terminal device in the preset weight according to the eighth embodiment of the present invention;
- a schematic diagram of retransmitting a data packet on a resource In FIG.
- a rectangular frame filled with scatter indicates common downlink control information
- a rectangular frame filled with slashes indicates an uplink grant-free resource
- a rectangular frame filled with a cross line indicates a pre-
- the retransmission resource is set; as shown in FIG. 8 and FIG. 9, in this embodiment, one grant-free resource includes 8 consecutive time slots; after transmitting data packets in consecutive 8 time slots using the grant-free resource, the terminal is exempted.
- the second time slot after the resource is granted receives feedback from the network side; the feedback includes downlink control information for uplink grant and common downlink control information.
- the downlink control information used for the uplink grant is used to trigger the terminal device to resend the data packet on the uplink grant resource.
- the uplink grant is used in the second time slot after the resource is not granted.
- the control information is received, and the uplink-granted resource includes only one time slot and defaults to the second time slot after the downlink control information for uplink grant; the terminal device retransmits the data packet on the uplink-granted resource.
- the public downlink control information indicates that the receiving state of the data packet is decoding success (ACK) or no decoding success (NACK); if the receiving state of the data packet is NACK, the common downlink control information is also used to trigger the terminal device to be preset. Retransmit the packet on the retransmitted resource.
- the common downlink control information is used to indicate that the receiving state of the data packet is decoding success (ACK) or detecting the data packet but decoding failure (NACK) or no data packet (DTX) is detected; if the receiving state of the data packet is The NACK, or any of the NACK and the DTX, is used to trigger the terminal device to resend the data packet on the preset retransmission resource. As shown in FIG.
- the common downlink control information is received on the second time slot after the resource is granted without granting resources;
- the preset retransmission resource is in the same frequency band as the grant-free resource, and includes the same 8 time slots and starts by default.
- the second time slot after the public downlink control information; the terminal device resends the data packet on the preset retransmission resource.
- the terminal device ignores the common downlink control information feedback (ie, The downlink control information sent by the uplink has higher priority. In this way, it helps to mitigate the collision of data packets of different terminal devices in the preset retransmission resources.
- FIG. 10 is a schematic diagram of a public downlink control information triggering terminal device retransmitting a data packet on a resource indicated by a retransmission resource index according to a ninth embodiment of the present invention.
- a rectangular frame filled with scatter points indicates common downlink control information.
- a rectangular box filled with a slash indicates an uplink grant-free resource
- a rectangular box filled with a cross line indicates a pre-configured first retransmission resource
- a rectangular box filled with a horizontal line indicates a pre-configured second retransmission resource;
- FIG. 10 is a schematic diagram of a public downlink control information triggering terminal device retransmitting a data packet on a resource indicated by a retransmission resource index according to a ninth embodiment of the present invention.
- a rectangular frame filled with scatter points indicates common downlink control information.
- a rectangular box filled with a slash indicates an uplink grant-free resource
- a rectangular box filled with a cross line indicates a pre-configured
- one grant-free resource includes eight consecutive time slots; after transmitting data packets in consecutive eight time slots using the grant-free resources, the terminal device is in the second time slot after the resource is exempted from granting resources.
- the downlink control information used for the uplink grant is used to trigger the terminal device to resend the data packet on the uplink grant resource.
- An example is shown in Fig. 8 (refer to the description of the eighth embodiment of the present invention).
- the common downlink control information is used to indicate that the reception status of the data packet is decoding success (ACK) or detecting the data packet but decoding failure (NACK) or no data packet detection (DTX). If the receiving state of the data packet is a NACK, the common downlink control information further indicates that the index of the retransmitted resource is sent to the terminal device, and the terminal device is triggered to resend the data packet on the resource indicated by the index of the retransmitted resource; wherein the resource is retransmitted; The resource indicated by the index belongs to a set of pre-configured retransmission resources. As shown in FIG.
- common downlink control information is received on the second time slot after the grant-free resource is received;
- the set of pre-configured retransmission resources includes two retransmission resources (represented as a pre-configured first retransmission). Resource and pre-configured second retransmission resource), any one of the two retransmission resources also includes 8 consecutive time slots and defaults to the second time slot after the common downlink control information;
- common downlink control The information indicates that the retransmission resource corresponding to the index of the retransmission resource of the terminal device is a pre-configured first retransmission resource, and the terminal device resends the data packet on the pre-configured first retransmission resource.
- the tenth embodiment of the present invention provides a data transmitting apparatus, which is located in a terminal device.
- FIG. 11 is a schematic structural diagram of a data sending apparatus according to an embodiment of the present invention. As shown in FIG. 11, the apparatus includes: a selecting module 1101 and a sending module 1102;
- the selecting module 1101 is configured to select an exemption resource
- the sending module 1102 is configured to send the data packet by using the selected grant-free resource
- the grant-free resource is: consecutive K time slots of one frequency band, wherein the K is an integer greater than zero.
- the one frequency band is one of the following:
- One of a plurality of pre-configured frequency bands is One of a plurality of pre-configured frequency bands.
- the first time slot of the consecutive K time slots is one of the following:
- One of the first set of time slots of the one frequency band is
- the slot index I slot of one slot in the first slot set satisfies the following conditions:
- N is an integer greater than zero.
- the first time slot of the consecutive K time slots is the first of the xth frequency bands.
- the slot index I slot (2) of one slot in the second slot set satisfies the following conditions:
- the sending module 1102 is configured to: when the one frequency band is one of a plurality of pre-configured frequency bands, select to send the data packet based on the time of arrival of the data packet. Resources.
- the sending module 1102 is configured to select the following exempt resources as the exempt resources of the sending data packet: the data packet arrives in all the exempt resources of the pre-configured multiple frequency bands.
- the grant-free resource after the moment and closest to the arrival time of the packet.
- the apparatus further includes: a receiving module 1103, configured to receive feedback from the network side after the first time slot of the resource-free grant;
- the feedback includes at least one of the following: a terminal device-specific signal, downlink control information for uplink grant, and common downlink control information.
- the receiving module 1103 is configured to receive feedback from the network side at a set time after the first time slot of the resource-free grant;
- the set time includes at least one of the following:
- the downlink control information for uplink grant includes uplink grant information of one or more terminal devices.
- the common downlink control information is used to simultaneously indicate a receiving status of the corresponding data packet to the multiple terminal devices
- the receiving state includes at least one of the following: successful decoding, no decoding success, detection of a data packet but failure of decoding, and no detection of a data packet.
- the receiving module 1103 is further configured to notify the sending module after receiving the feedback from the network side;
- the sending module 1102 is further configured to: before receiving the notification, terminate the sending of the data packet when the first condition is met;
- the first condition includes at least one of the following:
- the feedback is common downlink control information, and the common downlink control information indicates that the receiving state of the data packet is decoding success.
- the receiving module 1103 is further configured to notify the sending module after receiving the feedback from the network side;
- the sending module 1102 is further configured to, after receiving the notification, resend the data packet in a preset retransmission resource when the second condition is met;
- the second condition includes at least one of the following:
- the feedback is the common downlink control information;
- the common downlink control information indicates that the receiving state of the data packet is one of the following: no decoding succeeds, the data packet is detected but the decoding fails, and no data packet is detected;
- the common downlink control information does not include the indication information of the index of the retransmitted resource.
- the receiving module 1103 is further configured to notify the sending module after receiving the feedback from the network side;
- the sending module 1102 is further configured to: after receiving the notification, when the third condition is met, the resource indicated by the index of the retransmission resource resends the data packet;
- the third condition includes: the feedback is public downlink control information, and the common downlink control information includes indication information of an index of a retransmission resource;
- the third condition further includes at least one of the following:
- the common downlink control information indicates that the reception status of the data packet is that the data packet is detected but the decoding fails.
- the receiving module 1103 is further configured to notify the sending module after receiving the feedback from the network side;
- the sending module 1102 is further configured to, after receiving the notification, terminate the transmission of the data packet in the exempt resource when the fourth condition is met, and resend the data in the resource indicated by the index of the retransmission resource. package;
- the fourth condition includes: the feedback is public downlink control information, and the common downlink control information includes indication information of an index of a retransmission resource;
- the fourth condition further includes at least one of the following:
- the common downlink control information indicates that the reception status of the data packet is that the data packet is detected but the decoding fails.
- the receiving module 1103 is further configured to notify the sending module after receiving the feedback from the network side;
- the sending module 1102 is further configured to, after receiving the notification, resend the data packet in the resource indicated by the downlink control information for uplink grant when the fifth condition is met;
- the fifth condition includes: receiving feedback in a third preset time slot after the granting of the resource; the feedback is downlink control information for uplink grant.
- the receiving module 1103 is further configured to notify the sending module after receiving the feedback from the network side;
- the sending module 1102 is further configured to, after receiving the notification, terminate the transmission of the data packet in the grant-free resource and indicate the downlink control information for the uplink grant, when the sixth condition is met.
- the resource resends the data packet;
- the sixth condition includes: ending from a first preset time slot after the first time slot of the grant-free resource to a second preset time slot before the last time slot of the resource-free grant, Feedback from the network side is received; the feedback is downlink control information for uplink grant.
- the selection module 1101, the sending module 1102, and the receiving module 1103 may each be a Central Processing Unit (CPU), a Micro Processor Unit (MPU), and a digital signal processor (Digital) located in the terminal.
- CPU Central Processing Unit
- MPU Micro Processor Unit
- Digital Digital
- DSP Digital Processor
- FPGA Field Programmable Gate Array
- An eleventh embodiment of the present invention provides a feedback method, which can be applied to a network side device such as a base station.
- Feedback via the terminal device proprietary signal is one of the following:
- the terminal device specific signal is sent to the terminal device when it is determined that the data packet is successfully decoded.
- the network side device transmits the terminal device specific signal to the terminal device only when it is determined that the data packet is successfully decoded; otherwise, the terminal device specific signal is not transmitted to the terminal device.
- the terminal device successfully detects the terminal device-specific signal, it determines that the data packet decoding is successful; otherwise, it determines that the data packet decoding fails.
- the terminal device specific signal is sent to the terminal device when it is determined that the data packet decoding fails.
- the network device transmits the terminal device-specific signal to the terminal device only when it is determined that the data packet decoding has failed; otherwise, the terminal device-specific signal is not transmitted to the terminal device.
- the terminal device successfully detects the terminal device proprietary signal, it determines that the data packet decoding fails; otherwise, determines that the data packet decoding is successful.
- the manner in which the terminal device detects the terminal device-specific signal includes: determining that the terminal device-specific signal is detected when the received energy of the terminal device-specific signal exceeds a set or pre-configured threshold value; otherwise, determining that the terminal device-specific signal is detected; Terminal device proprietary signal.
- a time-frequency resource for transmitting the terminal device proprietary signal is allowed.
- the pre-configuration includes at least one of the following:
- the RRC message configuration is controlled by dynamic signaling configuration, by broadcast signaling configuration, by radio resources of the terminal device.
- the time-frequency resource for transmitting the terminal device-specific signal may be allowed to start by default in a set time slot (for example, the fourth time slot) after one or more transmissions of the data packet, through the terminal device.
- the proprietary RRC message configuration allows time-frequency resources for transmitting terminal device-specific signals (eg, configured as the first available resource block in the system bandwidth) in the set time slot.
- the terminal device-specific signal sequence related parameter may be configured to the terminal device by using a terminal device-specific RRC message, where the related parameter includes one of the following: the terminal device-specific signal used sequence is set.
- the terminal device-specific signal used sequence is set.
- sequence used by the terminal device proprietary signal is one of the following:
- the type (or form) of the sequence used by the terminal device-specific signal is a Zadoff-Chu sequence. Or a product of a Zadoff-Chu sequence and a pseudo noise PN sequence;
- the type (or form) of the sequence used by the terminal device-specific signal is a pseudo noise PN sequence or a cyclic extension sequence of a Zadoff-Chu sequence or a product of a cyclic extension sequence of a Zadoff-Chu sequence and a pseudo noise PN sequence.
- the terminal does not need to perform the demodulation and decoding process, and only needs to detect the received energy of the terminal device to determine whether the data packet is successfully decoded. Thereby reducing the power loss of the terminal device when receiving feedback.
- the twelfth embodiment of the present invention provides a feedback device, which is located in a network side device such as a base station.
- FIG. 12 is a schematic structural diagram of a feedback apparatus according to an embodiment of the present invention. As shown in FIG. 12, the apparatus includes: a notification module 1201 and a feedback module 1202.
- the notification module 1201 is configured to notify the feedback module
- the feedback module 1202 is configured to: after receiving the notification, feed back one of the following through the terminal device proprietary signal: the data packet is successfully decoded, and the data packet decoding fails.
- the notification module 1201 and the feedback module 1202 may each be a Central Processing Unit (CPU), a Micro Processor Unit (MPU), and a Digital Signal Processor (Digital Signal Processor) located in the network side device. , DSP), or Field Programmable Gate Array (FPGA) implementation.
- CPU Central Processing Unit
- MPU Micro Processor Unit
- DSP Digital Signal Processor
- FPGA Field Programmable Gate Array
- the above data transmission method or data feedback method is implemented in the form of a software function module, and is sold or used as a separate product, it may also be stored in a computer readable storage medium.
- the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
- a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
- the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
- program codes such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
- an embodiment of the present invention provides a computer readable storage medium, where a computer program is stored, where the computer program is executed by a processor to implement the step of the data sending method; or the computer program is executed by a processor.
- the steps of the data feedback method are implemented.
- an embodiment of the present invention provides a data transmitting device, including a memory and a processor, where the memory stores a computer program executable on a processor, and when the processor executes the program, the data of the claims is implemented. The steps to send the method.
- an embodiment of the present invention provides a data feedback device, including a memory and a processor, where the memory stores a computer program executable on a processor, and the processor implements the data feedback method when the program is executed by the processor. A step of.
- a computer program (also referred to as a program, software, software application, script, or code) can be written in any programming language, including assembly or interpreted language, descriptive language, or procedural language, and can be in any form (including as an independent A program, or as a module, component, subroutine, object, or other unit suitable for use in a computing environment.
- a computer program can, but does not necessarily, correspond to a file in a file system.
- the program can be stored in a portion of the file that holds other programs or data (eg, one or more scripts stored in the markup language document), in a single file dedicated to the program of interest, or in multiple collaborative files ( For example, storing one or more modules, submodules, or files in a code section).
- the computer program can be deployed to be executed on one or more computers located at one site or distributed across multiple sites and interconnected by a communication network.
- the processes and logic flows described in the specification can be performed by one or more programmable processors executing one or more computer programs to perform actions by operating input data and generating output.
- the above described processes and logic flows can also be performed by dedicated logic circuitry, and the apparatus can also be implemented as dedicated logic circuitry, such as an FPGA or ASIC.
- processors suitable for the execution of a computer program include, for example, a general purpose microprocessor and a special purpose microprocessor, and any one or more processors of any type of digital computer.
- a processor will receive instructions and data from a read only memory or a random access memory or both. The main elements of the calculation are the processor for performing the actions in accordance with the instructions and one or more memories for storing the instructions and data.
- a computer also includes one or more mass storage devices (eg, magnetic disks, magneto-optical disks, or optical disks) for storing data, or is operatively coupled to receive data from or send data thereto, or Both are. However, the computer does not need to have such a device.
- the computer can be embedded in another device, such as a mobile phone, a personal digital assistant (PDA), a mobile audio player or mobile video player, a game console, a global positioning system (GPS) receiver, or a mobile storage device.
- PDA personal digital assistant
- GPS global positioning system
- Suitable devices for storing computer program instructions and data include all forms of non-volatile memory, media and storage devices, including, for example, semiconductor storage devices (eg, EPROM, EEPROM, and flash memory devices), magnetic disks (eg, internal hard drives or removable hard drives). ), magneto-optical disks, and CD-ROM and DVD-ROM discs.
- the processor and memory can be supplemented by or included in dedicated logic circuitry.
- selecting an exempt grant resource to send a data packet is: consecutive K time slots of one frequency band, where the K is an integer greater than 0;
- the setting mode is adopted so that the terminal device can better utilize the grant-free resources; and according to the method, an exempted resource can support at most K times of repeated transmission of the data packet, which improves the reliability of transmitting the data packet by using the grant-free mode.
- one of the following is reported by the terminal device proprietary signal: the data packet is successfully decoded, and the data packet decoding fails; thus, the terminal device does not need the demodulation and decoding process, and only needs to detect the received energy of the terminal device proprietary signal. It can be judged whether the data packet is successfully decoded, thereby reducing the power loss of the terminal device when receiving feedback.
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Abstract
本发明实施例提供了一种数据发送、反馈方法及装置、设备、存储介质,所述数据发送方法包括:选择一个免授予资源发送数据包;所述免授予资源为:一个频带的连续K个时隙,其中,所述K是大于0的整数。
Description
相关申请的交叉引用
本申请基于申请号为201710184699.5、申请日为2017年03月24日的中国专利申请提出,并要求该中国专利申请的优先权,该中国专利申请的全部内容在此以全文引入的方式引入本申请。
本发明涉及无线通信领域,尤其涉及一种数据发送、反馈方法及装置、设备、存储介质。
为继续改善系统效率和减少延时以满足第五代(5G)移动通信需求,在第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)标准组织中正在讨论命名为新射频(New Radio,NR)的下一代接入技术。
该新射频技术面向以下三种使用场景:增强的移动宽带(enhanced Mobile Broadband,eMBB)、大规模的机器类型通信(massive Machine Type Communications,mMTC)及超可靠和低时延通信(Ultra-Reliable and Low Latency Communications,URLLC)。
对于终端设备的上行链路,尤其是以上三种场景的上行链路,为降低用户面延时,采用免授予的发送机制(Grant-free)目前已经被标准组织接受。免授予发送过程是:为终端设备预配置一个免授予资源的集合;在数据包到达后,终端设备在预配置的免授予资源的集合中选择一个免授予资源发送数据包;不同的终端设备允许共享相同的免授予资源的集合。目前为止,针对在上行的免授予发送,如何定义免授予资源尚没有好的解决方 案。
发明内容
为解决现有存在的技术问题,本发明实施例提供了一种数据发送方法及装置、设备、存储介质,用于解决现有技术中存在的如何定义免授予资源的问题,本发明实施例还提供了一种反馈方法及装置、设备、存储介质,用于降低终端接收反馈时的功率损耗。
为达到上述目的,本发明实施例的技术方案是这样实现的:
本发明实施例提出了一种数据发送方法,所述方法包括:
选择一个免授予资源发送数据包;
所述免授予资源为:一个频带的连续K个时隙,其中,所述K是大于0的整数。
本发明实施例还提出了一种反馈方法,所述方法包括:
通过终端设备专有信号反馈以下之一:
数据包解码成功、数据包解码失败。
本发明实施例还提出了一种数据发送装置,所述装置包括:选择模块和发送模块;其中,
选择模块,配置为选择一个免授予资源;
发送模块,配置为利用所选择的免授予资源发送数据包;
所述免授予资源为:一个频带的连续K个时隙,其中,所述K是大于0的整数。
本发明实施例还提出了一种反馈装置,所述装置包括通知模块和反馈模块;其中,
通知模块,配置为通知反馈模块;
反馈模块,配置为在收到通知后,通过终端设备专有信号反馈以下之一:数据包解码成功、数据包解码失败。
本发明实施例提供一种计算机可读存储介质,其上存储有计算机程序,该计算机程序被处理器执行时实现所述的数据发送方法的步骤;或者,该计算机程序被处理器执行时实现所述的数据反馈方法的步骤。
本发明实施例提供一种数据发送设备,包括存储器和处理器,所述存储器存储有可在处理器上运行的计算机程序,所述处理器执行所述程序时实现权利要求上述的数据发送方法的步骤。
本发明实施例提供一种数据反馈设备,包括存储器和处理器,所述存储器存储有可在处理器上运行的计算机程序,所述处理器执行所述程序时实现上述的数据反馈方法的步骤。
本发明实施例提供的一种数据发送方法及装置、设备、存储介质中,选择一个免授予资源发送数据包;所述免授予资源为:一个频带的连续K个时隙,其中,所述K是大于0的整数;这样,对于上行的免授予资源给出了设置方式,使终端设备可以更好的利用免授予资源;另外,按照该方法,一个免授予资源至多可支持数据包的K次重复传输,这提高了采用免授予方式发送数据包的可靠性。
另外,本发明实施例提供的一种反馈方法及装置、设备、存储介质中,通过终端设备专有信号反馈以下之一:数据包解码成功、数据包解码失败;这样,终端设备不需要解调和解码过程,只需要通过对终端设备专有信号的接收能量的检测即可判断数据包是否解码成功,从而减少了终端设备在接收反馈时的功率损耗。
图1为本发明第一实施例的数据发送方法的流程图;
图2为本发明第二实施例的免授予资源的示意图;
图3为本发明第三实施例的免授予资源的示意图;
图4为本发明第四实施例的免授予资源的示意图;
图5为本发明第五实施例的免授予资源的示意图;
图6为本发明第六实施例用于上行授予的下行控制信息触发终端设备在授予的资源上重传数据包的示意图;
图7为本发明第七实施例用于上行授予的下行控制信息触发终端设备在授予的资源上重传数据包的示意图;
图8为本发明第八实施例用于上行授予的下行控制信息触发终端设备在授予的资源上重传数据包的示意图;
图9为本发明第八实施例的公共的下行控制信息触发终端设备在预设的重传资源上重传数据包的示意图;
图10为本发明第九实施例的公共下行控制信息触发终端设备在重传资源索引指示的资源上重传数据包的示意图;
图11为本发明实施例的数据发送装置的结构示意图;
图12为本发明实施例的反馈装置的结构示意图。
以下结合附图及实施例,对本发明进行说明。应当理解,此处所描述的实施例仅仅用以解释本发明,并不用于限定本发明。
本发明实施例提供了一种数据发送方法及装置,能够应用于终端设备中;这里,终端设备可以是与网络侧设备(例如,基站)形成无线通信连接的设备,例如,可以是移动终端等;本发明实施例中,并不对终端设备使用的无线通信技术或接入的无线通信网络的种类进行限制。
终端设备可以包括用于向网络侧发送信号的发射机和用于接收网络侧信号的接收机,其中,接收机可以采用串行干扰消除(Successive Interference Cancellation,SIC)技术来提高接收性能。
在实际实施时,可以为终端设备预配置一个免授予资源池,该免授予资源池是免授予资源的集合;其中,一个免授予资源可以是一个时频资源。
这里,终端设备可以采用免授予资源发送数据包,本发明实施例中,并不对终端设备发送的数据包的大小、种类等进行限制;在实际实施时,终端设备在获取待发送的数据包后,在预配置的免授予池中选择一个免授予资源发送数据包;不同的终端设备允许共享相同的免授予资源的集合。
基于上述记载的终端设备、免授予资源等提出以下各实施例。
第一实施例
本发明第一实施例提出了一种数据发送方法,可以应用于终端设备中。
图1为本发明第一实施例的数据发送方法的流程图,如图1所示,该流程可以包括:
步骤101:选择一个免授予资源发送数据包;
这里,所述免授予资源为:一个频带的连续K个时隙,其中,所述K是大于0的整数。
这样,对于上行的免授予资源给出了设置方式,使终端设备可以更好的利用免授予资源;另外,按照该方法,一个免授予资源至多可支持数据包的K次重复传输,这提高了采用免授予方式发送数据包的可靠性。在其他实施例中,针对在URLLC场景下上行的免授予发送,给出了使用免授予资源的方案。
在一种实施例中,所述数据包使用的混合自动重复请求(Hybrid Automatic Repeated reQuest,HARQ)进程的编号是0或1。换句话说,终端设备至多支持两个HARQ进程;例如,在支持1个HARQ进程的情况下,所述数据包使用的HARQ进程的编号固定是0;在支持2个HARQ进程的情况下,所述数据包使用的HARQ进程的编号是0或者1。该方法适配免授予发送时业务量不大的业务特性且简化了免授予发送时HARQ进程识别的复杂度。
在一种实施例中,上述记载的一个频带为以下之一:
预配置的一个频带、预配置的多个频带中的一个频带。
其中,所述预配置的多个频带中的一个频带,表示所述一个频带是所述多个频带中的一个频带,所述多个频带是预配置的。
需要说明的是,所述预配置的一个频带或预配置的多个频带都是逻辑上的频带,一个逻辑上的频带在不同的时隙可以对应相同或不同的物理频带。所述时隙(有时也称为微时隙)是可获得或可用时隙(即逻辑上的时隙),换句话说,所述连续K个时隙可以是物理上连续的K个时隙,也可以是物理上非连续的K个时隙。所述时隙是一个数据包的一次传输所占用的时间单元,包括连续K个时隙的一个免授予资源最多可支持一个数据包的连续K次的重复传输。
在一种实施例中,当所述一个频带为预配置的一个频带时,所述连续K个时隙中的第1个时隙为以下之一:所述一个频带的所有时隙中的任意一个时隙、所述一个频带的第一时隙集合中的一个时隙。
对于第一时隙集合的设置方式,下面进行示例性说明,上述记载的第一时隙集合中的一个时隙的时隙索引I
slot满足以下条件:
I
slotmod K=n·(K/N),n=0,1,2,…,N-1,
其中,所述N是大于0的整数,本发明个实施例中,mod表示取余运算。
可以看出,如果所述连续K个时隙中的第1个时隙为所述一个频带的所有时隙中的任意一个时隙,可以使数据包的发送延时最小化;如果所述连续K个时隙中的第1个时隙为所述一个频带的第一时隙集合中的一个时隙,则一个免授予资源只可以开始于该频带的每连续K个时隙中的特定时隙,这样有利于支持混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)合并;通过与提前终止机制(即在一个数据包被网络成功接收时,终端设备提前结束该数据包在免授予资源的发送)的结合,一个免授予资 源包括的连续K个时隙中的靠后的时隙冲突概率更小,从而有利于提高终端设备的接收性能。
在一种实施例中,当所述一个频带为预配置的多个频带中的第x个频带时,所述连续K个时隙中的第1个时隙是第x个频带的第二时隙集合中的一个时隙;所述x是大于0且小于X的整数,所述X表示所述预配置的多个频带的数目。
这里,所述第二时隙集合中一个时隙的时隙索引I
slot(2)可以满足以下条件:
I
slot(2)mod K=(x-1)·(K/X)。
可以看出,如果所述连续K个时隙中的第1个时隙是所述第x个频带的第二时隙集合中的一个时隙,则一个免授予资源只可以开始于该频带的每连续K个时隙中的特定时隙,这样有利于支持HARQ合并;通过与提前终止机制(即在一个数据包被网络成功接收时,终端设备提前结束该数据包在免授予资源的发送)的结合,一个免授予资源包括的连续K个时隙中的靠后的时隙冲突概率更小,从而有利于提高终端设备的接收性能。
需要说明的是,所述时隙索引是一个时隙在连续P个无线帧包括的所有时隙范围内的索引。例如,设想每一个无线帧包括连续Q个时隙,则连续P个无线帧总共包括连续P×Q个时隙;对于第p个无线帧中的第q个时隙,它对应的时隙索引是(p-1)×Q+q-1;其中,该P和Q是大于0的整数,该p是大于等于1小于等于P的整数,该q是大于等于1小于等于Q的整数。
在一种实施例中,所述选择一个免授予资源发送数据包,包括:当所述一个频带为预配置的多个频带中的一个频带时,根据所述数据包到达的时刻选择发送所述数据包的免授予资源。
在实际实施时,所述发送数据包的免授予资源是在所述预配置的多个 频带的所有免授予资源中位于数据包到达时刻后且最接近数据包到达时刻的免授予资源;如此,终端设备可以根据数据包到达时刻选择发送延时最小的免授予资源发送数据包,有利于降低数据包发送时延。
在其他实施例中,在在所述免授予资源的第1个时隙之后,还可以接收来自网络侧的反馈;所述反馈包括以下至少之一:终端设备专有信号、用于上行授予的下行控制信息、公共的下行控制信息。
这里,网络侧可以是基站等设备,终端设备专有信号为网络侧设备预配置给每个终端的信号,该终端设备专有信号仅被发送至对应的终端设备。
当所述反馈包括用于上行授予的下行控制信息时,该下行控制信息包括终端设备的上行授予信息,用于为终端设备指定可用于重新发送数据包的上行授予资源;这里,所述用于上行授予的下行控制信息可以包括一个终端设备的上行授予信息,也可以包括多个终端设备的上行授予信息。
例如,用于上行授予的下行控制信息只允许包括唯一终端设备的上行授予信息(当需要给多个终端设备提供上行授予信息时,分别为多个终端设备采用不同的用于上行授予的下行控制信息);或者,用于上行授予的下行控制信息允许包括一个终端设备也允许包括多个终端设备的上行授予信息(当只需要给一个终端设备提供上行授予信息时,用于上行授予的下行控制信息只包括一个终端设备的上行授予信息,当需要给多个终端设备提供上行授予信息时,用于上行授予的下行控制信息包括多个终端设备的上行授予信息)。
当所述反馈包括公共的下行控制信息时,该公共的下行控制信息位于公共搜索空间或者组搜索空间,该公共的下行控制信息的大小等于用于上行授予的下行控制信息的大小。
本实施例中,对于接收来自网络侧的反馈的时间,在一个示例中,可以在所述免授予资源的第1个时隙后的设定时间接收来自网络侧的反馈;
在实际实施时,所述设定时间包括以下至少之一:
在所述免授予资源后的第三预设时隙;
从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束。
其中,第二预设时隙位于第一预设时隙后,这里,本发明实施例中,并不对第三预设时隙进行限制,只需确保第三预设时隙位于免授予资源后即可。
需要说明的是,在所述免授予资源后的第三预设时隙接收来自网络侧的反馈等价于采用了同步的反馈定时,这有利于减少延时和盲检测次数。
优选地,所述用于上行授予的下行控制信息可以包含新数据包指示符;
其中,该新数据包指示符用于指示该用于上行授予的下行控制信息是用于数据包首传的资源授予还是数据包重传的资源授予。
当所述反馈包括所述公开的下行控制信息时,所述公共的下行控制信息可以用于同时向多个终端设备指示对应数据包的接收状态;
其中,所述接收状态包括以下至少之一:数据包解码成功、数据包没有解码成功、检测到数据包但解码失败、没有检测到数据包。
也就是说,网络侧可以通过公共的下行控制信息向对应终端设备反馈网络侧接收数据包的状态,例如,在终端设备开始向网络侧发送数据包1后,网络侧可以向终端设备发送公共的下行控制信息,在该公共的下行控制信息中指示网络侧接收到数据包但并没有解码成功。
在其他实施例中,当所述公共的下行控制信息指示数据包的接收状态是检测到数据包但解码失败时,所述公共的下行控制信息还用于指示以下信息至少之一:终端设备发射功率的调整量、重传资源的索引;其中,所述重传资源属于预配置的重传资源的集合。
也就是说,如果网络侧接收数据包的状态是检测到数据包但解码失败, 则可以向终端设备发送公共的下行控制信息,在发送的公共的下行控制信息中指示:网络侧接收数据包的接收状态以及终端设备进行相应的处理(例如,调整终端设备发射功率,或者,使用重传资源重新上传数据包)。
在所述公共的下行控制信息用于指示终端设备发射功率的调整量时,终端设备可以根据该调整量调整发射功率。依赖于终端设备的功率调整,可以实现不同终端设备之间的接收功率差,有助于提高采用SIC的接收机性能。
在其他实施例中,可以根据以下方式至少之一确定公共的下行控制信息的循环冗余校验CRC加扰标识:设置固定的CRC加扰标识、采用预配置的CRC的加扰标识、根据免授予资源所在的免授予资源池的索引确定CRC加扰标识。
在实际实施时,根据免授予资源所在的免授予资源池的索引确定CRC加扰标识包括:将不同的免授予资源池与不同的公共的下行控制信息一一对应。
可采用组合的方式确定公共的下行控制信息的CRC加扰标识,例如在没有预配置CRC加扰标识(即缺省)的情况下,采用固定的CRC加扰标识,否则采用预配置的CRC加扰标识。
在其他实施例中,当所述反馈包括所述公开的下行控制信息时,可以根据以下方式至少之一确定终端设备对应的反馈信息在公共的下行控制信息中的位置:采用预配置的终端设备对应的反馈信息的位置、根据预配置给终端设备的解调参考信号的索引确定终端设备对应的反馈信息的位置。
这里,可以采用组合的方式确定在公共的下行控制信息中终端设备所对应的信息的位置,例如在没有预配置终端设备所对应的反馈信息的位置(即缺省)情况下,根据解调参考信号的索引确定终端设备对应的反馈信息在公共的下行控制信息中的位置,否则采用预配置的终端设备对应的反 馈信息的位置。
通过采用公共下行控制信息进行反馈,可提高反馈的资源利用效率。
这里,根据解调参考信号的索引确定在公共的下行控制信息中终端设备所对应信息的位置,包括:在不同的免授予资源池与不同的公共下行控制信息一一对应情况下,将不同的解调参考信号与不同的信息位置一一对应。
在一种实施例中,当所述反馈包括终端设备专有信号时,该终端设备专有信号用于向所述终端设备指示所述数据包解码成功;例如,如果终端设备检测到终端设备专有信号,则可以确定网络侧接收到数据包并且对数据包解码成功。换句话说,网络侧设备只有在确定数据包解码成功时,才向终端设备发送终端设备专有信号;否则,不向终端设备发送终端设备专有信号。相应地,终端设备在成功检测到终端设备专有信号时,确定数据包解码成功;否则,确定数据包解码失败。其中,终端设备检测终端设备专有信号的方式包括:当终端设备专有信号的接收能量超过设定或预配置的门限值时,确定检测到终端设备专有信号;否则,确定没有检测到终端设备专有信号。这样,终端设备不需要解调和解码过程,只需要通过对终端设备专有信号的接收能量的检测即可判断数据包是否解码成功,从而减少了终端设备在接收反馈时的功率损耗。
在其他实施例中,当所述反馈包括所述终端设备专有信号时,通过预配置的方式确定以下至少之一:
所述终端设备专有信号所使用的序列;
允许用于发送所述终端设备专有信号的时频资源。
这里,所述终端设备专有信号使用的序列可以为以下之一:
伪噪声PN序列、Zadoff-Chu序列、Zadoff-Chu序列的循环扩展序列、Zadoff-Chu序列与伪噪声PN序列的乘积、Zadoff-Chu序列的循环扩展序列 与伪噪声PN序列的乘积。
作为一种实施方式,在终端设备专有信号所使用的序列的长度值是一个质数(例如11或61等)时,终端设备专有信号使用的序列的类型(或形式)是Zadoff-Chu序列或者是Zadoff-Chu序列与伪噪声PN序列的乘积;
否则,终端设备专有信号使用的序列的类型(或形式)是伪噪声PN序列或者是Zadoff-Chu序列的循环扩展序列或者是Zadoff-Chu序列的循环扩展序列与伪噪声PN序列的乘积。
本发明实施例中,对于预配置的实现方式,可以进行如下示例性说明。网络侧对终端设备的预配置方式可以包括以下至少之一:通过动态信令配置、通过广播信令配置、通过终端设备专有的RRC消息配置。
这里,上述记载的动态信令可以是一个终端设备专有的,也可以是一组终端设备专有的;优选地,动态信令可以包括下行控制信息信令。
作为一种实施方式,可以通过终端设备专有的RRC消息配置在反馈的时隙中允许用于发送终端设备专有信号的时频资源(例如配置为系统带宽中的第1个可用资源块)。可以通过终端设备专有的RRC消息向终端设备配置终端设备专有信号序列相关参数,其中,该相关参数包括以下之一:终端设备专有信号使用的序列在设定的序列集合中的索引,其中,该设定的序列集合是由终端设备专有信号可以使用的所有序列构成的集合;设定的参数,其中,根据该设定的参数可以计算出终端设备专有信号所使用的序列。
在接收到来自网络侧的反馈后,可以根据所述反馈,并采用以下几种方式对数据包的发送过程进行处理,
第一种方式:
在接收到来自网络侧的反馈后,当满足第一条件时,提前终止所述数据包的发送;
所述第一条件包括以下至少之一:
从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束,接收到来自网络侧的反馈;
所述反馈是公共的下行控制信息,所述公共的下行控制信息指示数据包的接收状态是解码成功。
第二种方式:
在接收到来自网络侧的反馈后,当满足第二条件时,在预设的重传资源重新发送所述数据包;
所述第二条件包括以下至少之一:
在所述免授予资源后的第三预设时隙接收到来自网络侧的反馈;
所述反馈是所述公共的下行控制信息;所述公共的下行控制信息指示数据包的接收状态是以下之一:没有解码成功、检测到数据包但解码失败、没有检测到数据包;当所述接收状态是检测到数据包但解码失败时,所述公共的下行控制信息不包含重传资源的索引的指示信息。
在实际实施时,所述预设的重传资源满足以下至少之一:
所述预设的重传资源占用的频带与所述免授予资源的频带相同;
所述预设的重传资源包括连续K个时隙;
所述预设的重传资源默认开始于接收到所述反馈的时隙后的第四预设时隙。
这里,并不对第四预设时隙与其他预设时隙的前后关系进行限定,只需确保第四预设时隙位于反馈的时隙之后即可。
第三种方式:
在接收到来自网络侧的反馈后,当满足第三条件时,在重传资源的索引指示的资源重新发送数据包;
所述第三条件包括:所述反馈是公共的下行控制信息,且所述公共的 下行控制信息包含重传资源的索引的指示信息;
所述第三条件还包括以下至少之一:
在所述免授予资源后的第三预设时隙接收到来自网络侧的反馈;
所述公共的下行控制信息指示数据包的接收状态是检测到数据包但解码失败。
在实际实施时,所述重传资源的的索引指示的资源满足以下至少之一:
所述重传资源的索引指示的资源包括连续K个时隙;
所述重传资源的索引指示的资源默认开始于接收到所述反馈的时隙后的第五预设时隙。
这里,并不对第五预设时隙与其他预设时隙的前后关系进行限定,只需确保第五预设时隙位于反馈的时隙之后即可。
第四种方式:
在接收到来自网络侧的反馈后,当满足第四条件时,提前终止所述数据包在所述免授予资源的发送,并且在重传资源的索引指示的资源重新发送数据包
所述第四条件包括:所述反馈是公共的下行控制信息,且所述公共的下行控制信息包含重传资源的索引的指示信息;
所述第四条件还包括以下至少之一:
从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束,接收到来自网络侧的反馈;
所述公共的下行控制信息指示数据包的接收状态是检测到数据包但解码失败。
这里,所述重传资源的索引指示的资源满足以下之一:
所述重传资源的索引指示的资源默认开始于接收到所述反馈的时隙后的第六预设时隙,以及默认结束于所述免授予资源的最后1个时隙;
所述重传资源的索引指示的资源包括连续K个时隙,并且默认开始于接收到所述反馈的时隙后的第六预设时隙。
这里,并不对第六预设时隙与其他预设时隙的前后关系进行限定,只需确保第六预设时隙位于反馈的时隙之后即可。
对于第四种方式,在一个可选的实施例中,所述提前终止所述数据包在所述免授予资源的发送,可以包括:
默认在所述重传资源的索引指示的资源前的第1个时隙,提前终止所述数据包在所述免授予资源的发送。
第五种方式:
在接收到来自网络侧的反馈后,当满足第五条件时,在所述用于上行授予的下行控制信息指示的资源重新发送数据包;
所述第五条件包括:在所述免授予资源后的第三预设时隙,接收到反馈;所述反馈是用于上行授予的下行控制信息;
第六种方式:
在接收到来自网络侧的反馈后,当满足第六条件时,提前终止所述数据包在所述免授予资源的发送并且在所述用于上行授予的下行控制信息指示的资源重新发送数据包;
所述第六条件包括:从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束,接收到来自网络侧的反馈;所述反馈是用于上行授予的下行控制信息。
对于第六种方式,在一个可选的实施例中,所述提前终止所述数据包在所述免授予资源的发送,可以包括:
默认在上行授予的资源之前的第1个时隙,提前终止所述数据包在免授予资源的发送;或者,默认在接收到所述反馈的时隙后的第八预设时隙,提前终止所述数据包在所述免授予资源的发送;或者,通过下行控制信息 指示所述数据包在所述免授予资源的发送的提前终止时隙,在所述提前终止时隙,提前终止所述数据包在所述免授予资源的发送。
这里,并不对第八预设时隙与其他预设时隙的前后关系进行限定,只需确保第八预设时隙位于反馈的时隙之后即可。
对于第五种方式和第六种方式,在一个可选的实施例中,所述用于上行授予的下行控制信息指示的资源满足以下至少之一:
所述用于上行授予的下行控制信息指示的资源包括连续Z个时隙,所述Z是大于0的整数且Z的值通过用于上行授予的下行控制信息指示;
所述用于上行授予的下行控制信息指示的资源默认开始于接收到所述反馈的时隙后的第七预设时隙,或者通过用于上行授予的下行控制信息指示。
这里,Z的值与K的值无关,而且,不对第七预设时隙与其他预设时隙的前后关系进行限定,只需确保第七预设时隙位于反馈的时隙之后即可。
特别地,当终端设备同时接收到所述用于上行授予的下行控制信息和所述公共的下行控制信息时,将所述公共的下行控制信息忽略,按照用于上行授予的下行控制信息重新发送数据包。换句话说,与公共的下行控制信息相比,用于上行授予的下行控制信息的优先级更高。需要说明的是,如果所述用于上行授予的下行控制信息是在所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束接收到的,则终端设备的操作还包括提前终止数据包在免授予资源的发送。
在一种实施例中,在所述免授予资源之后,终端设备可以不再接收所述反馈,或者,根据所述K的大小确定是否接收所述反馈;例如,在根据根据所述K的大小确定是否接收所述反馈时,如果K大于设定的阈值或预配置的阈值,则不接收反馈,否则,终端设备可以接收反馈。
第二实施例
在本发明第一实施例的基础上,进行举例说明。
图2为本发明第二实施例的免授予资源的示意图;
如图2所示,所有可利用的免授予资源位于同一个频带中;该频带是预配置给终端设备的,例如通过终端设备专有的无线资源控制(Radio Resource Control,RRC)消息为终端设备配置免授予资源所在的频带信息;任一个免授予资源包括该频带的连续8(即K=8)个时隙;该频带的任何一个时隙都可以作为一个免授予资源包括的连续8个时隙中的第一个时隙,也就是说,一个免授予资源可以开始于该频带的任何一个时隙。
基于本发明第二实施例,采用免授予资源发送数据包时,由于可以使用对应频带的任一个时隙作为免授予资源的第一个时隙,所以可以使数据包的发送延时最小化;本发明第二实施例的缺陷是:由于免授予资源的第一个时隙的不确定性,导致不利于支持混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)合并,另外,由于免授予资源的第一个时隙的不确定性,网络侧无法确定连续K个时隙最后的终止时刻,从而不好判断当前是否要触发重传。
第三实施例
在本发明第一实施例的基础上,进行举例说明。
图3为本发明第三实施例的免授予资源的示意图,如图3所示,所有可利用的免授予资源位于同一个频带中;该频带是预配置给终端设备的,例如通过终端设备专有的RRC消息为终端设备配置免授予资源所在的频带信息;任一个免授予资源包括该频带的连续8(即K=8)个时隙;该频带的满足以下条件的一个时隙可作为一个免授予资源包括的连续8个时隙中的第一个时隙:
I
slotmod K=I
slotmod 8=0,
其中,该I
slot表示一个免授予资源包括的连续8个时隙中的第一个时隙的时隙索引;也就是说,一个免授予资源只可以开始于该频带的每连续8个时隙中的第一个时隙。
基于本发明第三实施例,采用免授予资源发送数据包时,一个免授予资源只可开始于该频带的每连续8个时隙中的特定时隙,这样有利于支持HARQ合并;通过与提前终止机制(即在一个数据包被网络成功接收时,终端设备提前结束该数据包在免授予资源的发送)的结合,一个免授予资源包括的连续K个时隙中的靠后的时隙冲突概率更小,从而有利于提高终端设备接收性能。
第四实施例
图4为本发明第四实施例的免授予资源的示意图,如图4所示,所有可利用的免授予资源位于同一个频带中;该频带是预配置给终端设备的,例如通过终端设备专有的RRC消息为终端设备配置免授予资源所在的频带信息;任一个免授予资源包括该频带的连续8(即K=8)个时隙;该频带的满足以下条件的一个时隙可作为一个免授予资源包括的连续8个时隙中的第一个时隙:
I
slotmod K=I
slotmod 8=4n,n=0,1,
其中,该I
slot表示一个免授予资源包括的连续8个时隙中的第一个时隙的时隙索引;也就是说,一个免授予资源只可以开始于该频带的每连续4个时隙中的第一个时隙。
本发明第四实施例采用了本发明第二实施例和第三实施例的折中方案,即同时兼顾了数据包的发送延时和HARQ合并的支持。
第五实施例
图5为本发明第五实施例的免授予资源的示意图,如图5所示,所有可利用的免授予资源分布于两个频带中(即免授予资源所在的免授予资源 池包括两个频带);该两个频带是预配置给终端设备的,例如通过终端设备专有RRC消息为终端设备预配置免授予资源所在的两个频带的位置信息;任一个免授予资源包括第一个或第二个频带的连续8(即K=8)个时隙。
这里,第一个频带的满足以下条件的一个时隙可作为第一个频带的一个免授予资源包括的连续8个时隙中的第一个时隙:
其中,该I
slot
1表示第一个频带的一个免授予资源包括的连续8个时隙中的第一个时隙的时隙索引;也就是说,第一个频带的一个免授予资源只可以开始于第一个频带的每连续8个时隙中的第一个时隙。
第二个频带的满足以下条件的一个时隙可作为第二个频带的一个免授予资源包括的连续8个时隙中的第一个时隙:
其中,该I
slot
2表示第二个频带的一个免授予资源包括的连续8个时隙中的第一个时隙的时隙索引;也就是说,第二个频带的一个免授予资源只可以开始于第二个频带的每连续8个时隙中的第5个时隙。
基于本发明第五实施例,第一个频带和第二个频带的一个免授予资源的开始时刻存在固定4个时隙的偏置。该方法的优势是同时解决了HARQ合并和数据包发送延时的问题;通过与提前终止机制的结合,一个免授予资源包括的连续K个时隙中的靠后的时隙冲突概率更小,从而有利于提高接收性能;缺陷是需要预配置更多的频带,从而导致资源利用效率相对不高。
基于本实施例所示的方法,终端设备根据数据包到达时刻确定选择哪一个免授予资源发送该数据包。例如,数据包在第2个时隙到达,则在任一个频带的所有免授予资源中,位于第2个时隙后且最接近第2个时隙的免授予资源是第二个频带的开始于第5个时隙的免授予资源;此时,终端 设备选择该第二个频带的开始于第5个时隙的免授予资源发送数据包,即终端设备根据数据包到达时刻选择发送延时最小的免授予资源发送数据包。
第六实施例
图6为本发明第六实施例用于上行授予的下行控制信息触发终端设备在授予的资源上重传数据包的示意图,如图6所示,填充有散点的矩形框表示用于上行授予的下行控制信息,填充有斜线的矩形框表示上行免授予资源,填充有交叉线的矩形框表示上行授予资源;可以看出,一个免授予资源包括连续8个时隙;在利用免授予资源的第1个时隙发送数据包之后,终端在免授予资源的第3个时隙开始接收来自网络侧的反馈直到免授予资源第6个时隙结束;反馈包括用于上行授予的下行控制信息和公共的下行控制信息。
其中,用于上行授予的下行控制信息用于触发终端设备提前终止在免授予资源范围内的数据包的发送并在上行授予的资源上重新发送数据包。如图6所示,在免授予资源的第3个时隙上用于上行授予的下行控制信息被接收,上行授予的资源只包括1个时隙且默认开始于用于上行授予的下行控制信息后的第2个时隙(即免授予资源的第5个时隙);终端设备在免授予资源内的数据包的发送提前终止于在上行授予的资源前的第1个时隙(即免授予资源的第4个时隙)并在上行授予的资源上重传数据包。
公共的下行控制信息用于指示数据包的接收状态是解码成功(ACK)还是没有解码成功(非ACK);如果该数据包的接收状态是ACK,公共的下行控制信息还用于触发终端设备立即终止在免授予资源范围内的数据包的发送。公共的下行控制信息的CRC加扰标识(终端设备利用该标识盲检测公共的下行控制信息)是网络侧半静态配置给终端设备的。在公共的下行控制信息中与终端设备对应的反馈信息的位置也是半静态配置给终端设 备的,例如设想公共的下行控制信息的有效载荷包括16比特,通过终端专有RRC消息指示与该终端设备对应的反馈信息是16个比特中的第4个比特。采用半静态的配置方式提高了网络操作的灵活性,从而网络可根据实际业务情况自适应的调整需要的公共下行控制信息的数量以及更高效的利用公共的下行控制信息比特,从而提高了反馈的资源利用效率。
需要说明的是,在本实施例中,上行授予的资源默认开始于用于上行授予的下行控制信息后的第2个时隙,但实际中并不局限于此,例如从提高调度灵活性角度,还可以通过用于上行授予的下行控制信息动态指示上行授予的资源的开始时隙;在这种情况下,终端设备在免授予资源内的数据包的发送总是提前终止于在上行授予的资源之前的第1个时隙,或者,总是提前终止于在上行授予的下行控制信息之后的固定时隙(该固定时隙依赖于解码下行控制信息需要的解码时间,例如如果该解码时间为1个时隙,则该固定时隙是在上行授予的下行控制信息之后的第2个时隙),或者,通过用于上行授予的下行控制信息指示在免授予资源内数据包发送的提前终止时隙。考虑到网络发送上行授予的目的是希望尽快将数据包的发送切换到上行授予的资源从而减少与其它数据包的碰撞,所以在免授予资源内的数据包的发送提前终止于在上行授予的下行控制信息之后的固定时隙相对更优。
第七实施例
图7为本发明第七实施例的公共下行控制信息触发终端设备在重传资源索引指示的资源上重传数据包的示意图,如图7所示,填充有散点的矩形框表示公共的下行控制信息,填充有斜线的矩形框表示上行免授予资源,填充有交叉线的矩形框表示预配置的第一重传资源,填充有横线的矩形框表示预配置的第二重传资源;可以看出,在本实施例中,一个免授予资源包括连续8个时隙;在利用免授予资源的第1个时隙发送数据包之后,终 端设备在免授予资源的第3个时隙开始接收来自网络侧的反馈直到免授予资源的第6个时隙结束;反馈包括用于上行授予的下行控制信息和公共的下行控制信息。
其中,用于上行授予的下行控制信息用于触发终端设备提前终止在免授予资源范围内的数据包的发送并在上行授予的资源上重新发送数据包;示例如图6所示(可参考第六实施例的对应内容)。
公共的下行控制信息用于指示数据包的接收状态是解码成功(ACK)或者检测到数据包但解码失败(NACK)或者没有检测到数据包(DTX)。如果该数据包的接收状态是ACK,则公共的下行控制信息还用于触发终端设备立即终止在免授予资源范围内的数据包的发送;如果数据包的接收状态是NACK,则公共的下行控制信息还指示重传资源的索引给终端设备,以及触发终端设备提前终止在免授予资源范围内的数据包的发送,并在重传资源的索引所指示的资源上重新发送数据包;其中,重传资源属于预配置的重传资源的集合。如图7所示,在免授予资源的第3个时隙上公共的下行控制信息被接收;终端设备在免授予资源范围内的数据包的发送提前终止于公共的下行控制信息之后的第1个时隙(即免授予资源的第4个时隙);预配置的重传资源的集合包括两个重传资源(表示为预配置的第一重传资源和预配置的第二重传资源),并且全部开始于公共的下行控制信息之后的第2个时隙(即免授予资源的第5个时隙)和全部结束于免授予资源的最后1个时隙(即免授予资源的第8个时隙);公共的下行控制信息指示给终端设备的重传资源的索引对应的重传资源是预配置的第一重传资源,终端设备在预配置的第一重传资源上重传数据包。
第八实施例
图8为本发明第八实施例用于上行授予的下行控制信息触发终端设备在授予的资源上重传数据包的示意图,图8中,填充有散点的矩形框表示 用于上行授予的下行控制信息,填充有斜线的矩形框表示上行免授予资源,填充有交叉线的矩形框表示上行授予资源;图9为本发明第八实施例的公共下行控制信息触发终端设备在预设的重传资源上重传数据包的示意图,图9中,填充有散点的矩形框表示公共的下行控制信息,填充有斜线的矩形框表示上行免授予资源,填充有交叉线的矩形框表示预设的重传资源;如图8和9所示,在本实施例中,一个免授予资源包括连续8个时隙;在利用免授予资源的连续8个时隙发送数据包后,终端在免授予资源后的第2个时隙接收来自网络侧的反馈;反馈包括用于上行授予的下行控制信息和公共的下行控制信息。
其中,用于上行授予的下行控制信息用于触发终端设备在上行授予的资源上重新发送数据包,如图8所示,在免授予资源后的第2个时隙上用于上行授予的下行控制信息被接收,上行授予的资源只包括1个时隙且默认开始于用于上行授予的下行控制信息后的第2个时隙;终端设备在该上行授予的资源上重新发送数据包。
公共的下行控制信息指示数据包的接收状态是解码成功(ACK)或没有解码成功(NACK);如果该数据包的接收状态是NACK,则公共的下行控制信息还用于触发终端设备在预设的重传资源上重新发送数据包。或者,公共的下行控制信息用于指示数据包的接收状态是解码成功(ACK)或检测到数据包但解码失败(NACK)或没有检测到数据包(DTX);如果该数据包的接收状态是NACK,或者是NACK和DTX中的任一个,则公共的下行控制信息还用于触发终端设备在预设的重传资源上重新发送数据包。如图9所示,在免授予资源后的第2个时隙上公共的下行控制信息被接收;预设的重传资源与免授予资源位于相同频带,同样包括连续8个时隙且默认开始于公共的下行控制信息后的第2个时隙;终端设备在该预设的重传资源上重新发送该数据包。
需要说明的是,如果在免授予资源后的第2个时隙同时存在用于上行授予的下行控制信息反馈和公共的下行控制信息反馈,则终端设备忽略公共的下行控制信息反馈(即用于上行授予的下行控制信息反馈优先级更高);这样,有助于减轻不同终端设备的数据包在预设的重传资源的碰撞。
第九实施例
图10为本发明第九实施例的公共下行控制信息触发终端设备在重传资源索引指示的资源上重传数据包的示意图,图10中,填充有散点的矩形框表示公共的下行控制信息,填充有斜线的矩形框表示上行免授予资源,填充有交叉线的矩形框表示预配置的第一重传资源,填充有横线的矩形框表示预配置的第二重传资源;如图10所示,在本实施例中,一个免授予资源包括连续8个时隙;在利用免授予资源的连续8个时隙发送数据包之后,终端设备在免授予资源后的第2个时隙接收来自网络侧的反馈;反馈包括用于上行授予的下行控制信息和公共的下行控制信息。
其中,用于上行授予的下行控制信息用于触发终端设备在上行授予的资源上重新发送数据包。示例如图8所示(参考本发明第八实施例的说明)。
公共的下行控制信息用于指示数据包的接收状态是解码成功(ACK)或检测到数据包但解码失败(NACK)或没有检测到数据包(DTX)。如果该数据包的接收状态是NACK,则公共的下行控制信息还指示重传资源的索引给终端设备并触发终端设备在重传资源的索引所指示的资源上重新发送数据包;其中重传资源的索引所指示的资源属于预配置的重传资源的集合。如图10所示,在免授予资源之后的第2个时隙上公共的下行控制信息被接收;预配置的重传资源的集合包括两个重传资源(表示为预配置的第一重传资源和预配置的第二重传资源),该两个重传资源中的任一个同样包括连续8个时隙并且默认开始于公共的下行控制信息之后的第2个时隙;公共的下行控制信息指示给终端设备的重传资源的索引对应的重传资源是 预配置的第一重传资源,终端设备在预配置的第一重传资源上重新发送数据包。
第十实施例
在本发明第一实施例至本发明第九实施例的基础上,本发明第十实施例提出了一种数据发送装置,该装置位于终端设备中。
图11为本发明实施例的数据发送装置的结构示意图,如图11所示,该装置包括:选择模块1101和发送模块1102;其中,
选择模块1101,配置为选择一个免授予资源;
发送模块1102,配置为利用所选择的免授予资源发送数据包;
所述免授予资源为:一个频带的连续K个时隙,其中,所述K是大于0的整数。
在一种实施例中,所述一个频带为以下之一:
预配置的一个频带;
预配置的多个频带中的一个频带。
在一种实施例中,所述一个频带为预配置的一个频带时,所述连续K个时隙中的第1个时隙为以下之一:
所述一个频带的所有时隙中的任意一个时隙;
所述一个频带的第一时隙集合中的一个时隙。
在一种实施例中,所述第一时隙集合中的一个时隙的时隙索引I
slot满足以下条件:
I
slotmod K=n·(K/N),n=0,1,2,…,N-1,
其中,所述N是大于0的整数。
在一种实施例中,当所述一个频带为预配置的多个频带中的第x个频带时,所述连续K个时隙中的第1个时隙是所述第x个频带的第二时隙集合中的一个时隙;其中,所述x是大于0且小于X的整数,所述X表示所 述预配置的多个频带的数目。
在一种实施例中,所述第二时隙集合中的一个时隙的时隙索引I
slot(2)满足以下条件:
I
slot(2)mod K=(x-1)·(K/X)。
在一种实施例中,所述发送模块1102,配置为在所述一个频带为预配置的多个频带中的一个频带时,根据所述数据包到达的时刻选择发送所述数据包的免授予资源。
在一种实施例中,所述发送模块1102,配置为选择以下免授予资源作为所述发送数据包的免授予资源:在所述预配置的多个频带的所有免授予资源中位于数据包到达时刻后且最接近数据包到达时刻的免授予资源。
在一种实施例中,所述装置还包括:接收模块1103,配置为在所述免授予资源的第1个时隙之后,接收来自网络侧的反馈;
所述反馈包括以下至少之一:终端设备专有信号、用于上行授予的下行控制信息、公共的下行控制信息。
在一种实施例中,所述接收模块1103,配置为在所述免授予资源的第1个时隙后的设定时间接收来自网络侧的反馈;
所述设定时间包括以下至少之一:
在所述免授予资源后的第三预设时隙;
从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束。
在一种实施例中,所述用于上行授予的下行控制信息包括一个或者多个终端设备的上行授予信息。
在一种实施例中,所述公共的下行控制信息用于同时向多个终端设备指示对应数据包的接收状态;
其中,所述接收状态包括以下至少之一:解码成功、没有解码成功、 检测到数据包但解码失败、没有检测到数据包。
在一种实施例中,所述接收模块1103,还配置为在接收到来自网络侧的反馈后,通知发送模块;
所述发送模块1102,还配置为在收到通知后,当满足第一条件时,提前终止所述数据包的发送;
所述第一条件包括以下至少之一:
从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束,接收到来自网络侧的反馈;
所述反馈是公共的下行控制信息,所述公共的下行控制信息指示数据包的接收状态是解码成功。
在一种实施例中,所述接收模块1103,还配置为在接收到来自网络侧的反馈后,通知发送模块;
所述发送模块1102,还配置为在收到通知后,当满足第二条件时,在预设的重传资源重新发送所述数据包;
所述第二条件包括以下至少之一:
在所述免授予资源后的第三预设时隙接收到来自网络侧的反馈;
所述反馈是所述公共的下行控制信息;所述公共的下行控制信息指示数据包的接收状态是以下之一:没有解码成功、检测到数据包但解码失败、没有检测到数据包;当所述接收状态是检测到数据包但解码失败时,所述公共的下行控制信息不包含重传资源的索引的指示信息。
在一种实施例中,所述接收模块1103,还配置为在接收到来自网络侧的反馈后,通知发送模块;
所述发送模块1102,还配置为在收到通知后,当满足第三条件时,在重传资源的索引指示的资源重新发送数据包;
所述第三条件包括:所述反馈是公共的下行控制信息,且所述公共的 下行控制信息包含重传资源的索引的指示信息;
所述第三条件还包括以下至少之一:
在所述免授予资源后的第三预设时隙接收到来自网络侧的反馈;
所述公共的下行控制信息指示数据包的接收状态是检测到数据包但解码失败。
在一种实施例中,所述接收模块1103,还配置为在接收到来自网络侧的反馈后,通知发送模块;
所述发送模块1102,还配置为在收到通知后,当满足第四条件时,提前终止所述数据包在所述免授予资源的发送,并且在重传资源的索引指示的资源重新发送数据包;
所述第四条件包括:所述反馈是公共的下行控制信息,且所述公共的下行控制信息包含重传资源的索引的指示信息;
所述第四条件还包括以下至少之一:
从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束,接收到来自网络侧的反馈;
所述公共的下行控制信息指示数据包的接收状态是检测到数据包但解码失败。
在一种实施例中,所述接收模块1103,还配置为在接收到来自网络侧的反馈后,通知发送模块;
所述发送模块1102,还配置为在收到通知后,当满足第五条件时,在所述用于上行授予的下行控制信息指示的资源重新发送数据包;
所述第五条件包括:在所述免授予资源后的第三预设时隙,接收到反馈;所述反馈是用于上行授予的下行控制信息。
在一种实施例中,所述接收模块1103,还配置为在接收到来自网络侧的反馈后,通知发送模块;
所述发送模块1102,还配置为在收到通知后,当满足第六条件时,提前终止所述数据包在所述免授予资源的发送并且在所述用于上行授予的下行控制信息指示的资源重新发送数据包;
所述第六条件包括:从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束,接收到来自网络侧的反馈;所述反馈是用于上行授予的下行控制信息。
在实际应用中,选择模块1101、发送模块1102和接收模块1103均可由位于终端中的中央处理器(Central Processing Unit,CPU)、微处理器(Micro Processor Unit,MPU)、数字信号处理器(Digital Signal Processor,DSP)、或现场可编程门阵列(Field Programmable Gate Array,FPGA)等实现。
第十一实施例
本发明第十一实施例提出了一种反馈方法,该反馈方法可以应用于基站等网络侧设备中。
本发明第十一实施例的反馈方法可以包括:
通过终端设备专有信号反馈以下之一:
数据包解码成功、数据包解码失败。
在一种可选的实施例中,在确定所述数据包解码成功时,向终端设备发送所述终端设备专有信号。换句话说,网络侧设备只有在确定数据包解码成功时,才向终端设备发送终端设备专有信号;否则,不向终端设备发送终端设备专有信号。相应地,终端设备在成功检测到终端设备专有信号时,确定数据包解码成功;否则,确定数据包解码失败。
在另一种可选的实施例中,在确定所述数据包解码失败时,向终端设备发送所述终端设备专有信号。换句话说,网络设备只有在确定数据包解码失败时,才向终端设备发送终端设备专有信号;否则,不向终端设备发 送终端设备专有信号。相应地,终端设备在成功检测到终端设备专有信号时,确定数据包解码失败;否则,确定数据包解码成功。
其中,终端设备检测终端设备专有信号的方式包括:当终端设备专有信号的接收能量超过设定或预配置的门限值时,确定检测到终端设备专有信号;否则,确定没有检测到终端设备专有信号。
这里,预配置以下至少之一:
所述终端设备专有信号所使用的序列;
允许用于发送所述终端设备专有信号的时频资源。
这里,预配置包括以下至少之一:
通过动态信令配置、通过广播信令配置、通过终端设备专有的射频资源控制RRC消息配置。
作为一种实施方式,可以允许用于发送终端设备专有信号的时频资源默认开始于数据包的一次或多次发送结束后的设定时隙(例如第4个时隙),通过终端设备专有的RRC消息配置在该设定时隙中允许用于发送终端设备专有信号的时频资源(例如配置为系统带宽中的第1个可用资源块)。
作为一种实施方式,可以通过终端设备专有的RRC消息向终端设备配置终端设备专有信号序列相关参数,其中,该相关参数包括以下之一:终端设备专有信号使用的序列在设定的序列集合中的索引,其中,该设定的序列集合是由终端设备专有信号可以使用的所有序列构成的集合;设定的参数,其中,根据该设定的参数可以计算出终端设备专有信号所使用的序列。
这里,终端设备专有信号使用的序列为以下之一:
伪噪声PN序列、Zadoff-Chu序列、Zadoff-Chu序列的循环扩展序列、Zadoff-Chu序列与伪噪声PN序列的乘积、Zadoff-Chu序列的循环扩展序列与伪噪声PN序列的乘积。
作为一种实施方式,在终端设备专有信号所使用的序列的长度值是一个质数(例如11或61等)时,终端设备专有信号使用的序列的类型(或形式)是Zadoff-Chu序列或者是Zadoff-Chu序列与伪噪声PN序列的乘积;
否则,终端设备专有信号使用的序列的类型(或形式)是伪噪声PN序列或者是Zadoff-Chu序列的循环扩展序列或者是Zadoff-Chu序列的循环扩展序列与伪噪声PN序列的乘积。
可以看出,采用本发明第十一实施例的方法进行反馈后,终端不需要进行解调和解码过程,只需要通过对终端设备专有信号的接收能量检测即可判断数据包是否解码成功,从而减少了终端设备在接收反馈时的功率损耗。
第十二实施例
在本发明第十一实施例的基础上,本发明第十二实施例提出了一种反馈装置,该装置位于基站等网络侧设备中。
图12为本发明实施例的反馈装置的结构示意图,如图12所示,该装置包括:通知模块1201和反馈模块1202
通知模块1201,配置为通知反馈模块;
反馈模块1202,配置为在收到通知后,通过终端设备专有信号反馈以下之一:数据包解码成功、数据包解码失败。
在实际应用中,通知模块1201和反馈模块1202均可由位于网络侧设备中的中央处理器(Central Processing Unit,CPU)、微处理器(Micro Processor Unit,MPU)、数字信号处理器(Digital Signal Processor,DSP)、或现场可编程门阵列(Field Programmable Gate Array,FPGA)等实现。
本发明实施例中,如果以软件功能模块的形式实现上述的数据发送方法或数据反馈方法,并作为独立的产品销售或使用时,也可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明实施例的技术方案本 质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read Only Memory)、磁碟或者光盘等各种可以存储程序代码的介质。这样,本发明实施例不限制于任何特定的硬件和软件结合。
对应地,本发明实施例提供一种计算机可读存储介质,其上存储有计算机程序,该计算机程序被处理器执行时实现所述的数据发送方法的步骤;或者,该计算机程序被处理器执行时实现所述的数据反馈方法的步骤。
对应地,本发明实施例提供一种数据发送设备,包括存储器和处理器,所述存储器存储有可在处理器上运行的计算机程序,所述处理器执行所述程序时实现权利要求上述的数据发送方法的步骤。
对应地,本发明实施例提供一种数据反馈设备,包括存储器和处理器,所述存储器存储有可在处理器上运行的计算机程序,所述处理器执行所述程序时实现上述的数据反馈方法的步骤。
计算机程序(也被称为程序、软件、软件应用、脚本或代码)能够以任何编程语言形式(包括汇编语言或解释语言、说明性语言或程序语言)书写,并且能够以任何形式(包括作为独立程序,或者作为模块、组件、子程序、对象或其它适用于计算环境中的单元)部署。计算机程序可以但非必要地对应于文件系统中的文件。程序能够被存储在文件的保存其它程序或数据(例如,存储在标记语言文档中的一个或多个脚本)的部分中,在专用于所关注程序的单个文件中,或者在多个协同文件(例如,存储一个或多个模块、子模块或代码部分的文件)中。计算机程序能够被部署为在一个或多个计算机上执行,该一个或多个计算机位于一个站点处,或者 分布在多个站点中且通过通信网络互连。
说明书中描述的过程和逻辑流能够由一个或多个可编程处理器执行,该一个或多个可编程处理器执行一个或多个计算机程序以通过操作输入数据和生成输出来执行动作。上述过程和逻辑流还能够由专用逻辑电路执行,并且装置还能够被实现为专用逻辑电路,例如,FPGA或ASIC。
适用于执行计算机程序的处理器例如包括通用微处理器和专用微处理器,以及任何数字计算机类型的任何一个或多个处理器。通常来说,处理器会从只读存储器或随机访问存储器或以上两者接收指令和数据。计算的主要元件是用于按照指令执行动作的处理器以及一个或多个用于存储指令和数据的存储器。通常来说,计算机还会包括一个或多个用于存储数据的大容量存储设备(例如,磁盘、磁光盘、或光盘),或者操作地耦接以从其接收数据或向其发送数据,或者两者均是。然而,计算机不需要具有这样的设备。而且,计算机能够被嵌入在另一设备中,例如,移动电话、个人数字助手(PDA)、移动音频播放器或移动视频播放器、游戏控制台、全球定位系统(GPS)接收机或移动存储设备(例如,通用串行总线(USB)闪盘),以上仅为举例。适用于存储计算机程序指令和数据的设备包括所有形式的非易失性存储器、媒体和存储设备,例如包括半导体存储设备(例如,EPROM、EEPROM和闪存设备)、磁盘(例如,内部硬盘或移动硬盘)、磁光盘、以及CD-ROM和DVD-ROM盘。处理器和存储器能够由专用逻辑电路补充或者包含到专用逻辑电路中。
虽然说明书包含许多的实施细节,但是这些实施细节不应当被解释为对任何权利要求的范围的限定,而是对专用于特定实施方式的特征的描述。说明书中在独立实施方式前后文中描述的特定的特征同样能够以单个实施方式的结合中实现。相反地,单个实施方式的上下文中描述的各个特征同样能够在多个实施方式中单独实现或者以任何合适的子结合中实现。而且, 尽管特征可以在上文中描述为在特定结合中甚至如最初所要求的作用,但是在一些情况下所要求的结合中的一个或多个特征能够从该结合中去除,并且所要求的结合可以为子结合或者子结合的变型。
类似地,虽然在附图中以特定次序描绘操作,但是这不应当被理解为要求该操作以所示的特定次序或者以相继次序来执行,或者所示的全部操作都被执行以达到期望的结果。在特定环境下,多任务处理和并行处理可以是有利的。此外,上述实施方式中各个系统组件的分离不应当被理解为要求在全部实施方式中实现该分离,并且应当理解的是所描述的程序组件和系统通常能够被共同集成在单个软件产品中或被封装为多个软件产品。
因此,已经对主题的特定实施方式进行了描述。其它实施方式在以下权利要求的范围内。在一些情况下,权利要求中所限定的动作能够以不同的次序执行并且仍能够达到期望的结果。此外,附图中描绘的过程并不必须采用所示出的特定次序、或相继次序来达到期望的结果。在特定实施方式中,可以使用多任务处理或并行处理。
本实施例中,选择一个免授予资源发送数据包;所述免授予资源为:一个频带的连续K个时隙,其中,所述K是大于0的整数;这样,对于上行的免授予资源给出了设置方式,使终端设备可以更好的利用免授予资源;且按照该方法,一个免授予资源至多可支持数据包的K次重复传输,这提高了采用免授予方式发送数据包的可靠性。此外,通过终端设备专有信号反馈以下之一:数据包解码成功、数据包解码失败;这样,终端设备不需要解调和解码过程,只需要通过对终端设备专有信号的接收能量的检测即可判断数据包是否解码成功,从而减少了终端设备在接收反馈时的功率损耗。
Claims (65)
- 一种数据发送方法,所述方法包括:选择一个免授予资源;利用所选择的免授予资源发送数据包;所述免授予资源为:一个频带的连续K个时隙,其中,所述K是大于0的整数。
- 根据权利要求1所述的方法,所述一个频带为以下之一:预配置的一个频带;预配置的多个频带中的一个频带。
- 根据权利要求2所述的方法,当所述一个频带为预配置的一个频带时,所述连续K个时隙中的第1个时隙为以下之一:所述一个频带的所有时隙中的任意一个时隙;所述一个频带的第一时隙集合中的一个时隙。
- 根据权利要求3所述的方法,所述第一时隙集合中的一个时隙的时隙索引I slot满足以下条件:I slotmod K=n·(K/N),n=0,1,2,…,N-1,其中,所述N是大于0的整数。
- 根据权利要求2所述的方法,当所述一个频带为预配置的多个频带中的第x个频带时,所述连续K个时隙中的第1个时隙是所述第x个频带的第二时隙集合中的一个时隙;其中,所述x是大于0且小于X的整数,所述X表示所述预配置的多个频带的数目。
- 根据权利要求5所述的方法,所述第二时隙集合中的一个时隙的时隙索引I slot(2)满足以下条件:I slot(2)mod K=(x-1)·(K/X)。
- 根据权利要求2所述的方法,所述选择一个免授予资源发送数据包,包括:当所述一个频带为预配置的多个频带中的一个频带时,根据所述数据包到达的时刻选择发送所述数据包的免授予资源。
- 根据权利要求7所述的方法,所述根据所述数据包到达的时刻选择发送所述数据包的免授予资源,包括:选择以下免授予资源作为所述发送数据包的免授予资源:在所述预配置的多个频带的所有免授予资源中位于数据包到达时刻后且最接近数据包到达时刻的免授予资源。
- 根据权利要求1所述的方法,所述方法还包括:在所述免授予资源的第1个时隙之后,接收来自网络侧的反馈;所述反馈包括以下至少之一:终端设备专有信号、用于上行授予的下行控制信息、公共的下行控制信息。
- 根据权利要求9所述的方法,所述在所述免授予资源的第1个时隙之后,接收来自网络侧的反馈,包括:在所述免授予资源的第1个时隙后的设定时间接收来自网络侧的反馈;所述设定时间包括以下至少之一:在所述免授予资源后的第三预设时隙;从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束。
- 根据权利要求9所述的方法,所述用于上行授予的下行控制信息包括一个或者多个终端设备的上行授予信息。
- 根据权利要求9所述的方法,所述公共的下行控制信息用于同时向多个终端设备指示对应数据包的接收状态;其中,所述接收状态包括以下至少之一:解码成功、没有解码成功、 检测到数据包但解码失败、没有检测到数据包。
- 根据权利要求12所述的方法,当所述公共的下行控制信息指示数据包的接收状态是检测到数据包但解码失败时,所述公共的下行控制信息还用于指示以下信息至少之一:终端设备发射功率的调整量、重传资源的索引;其中,所述重传资源属于预配置的重传资源的集合。
- 根据权利要求9所述的方法,所述方法还包括:根据以下方式至少之一确定公共的下行控制信息的循环冗余校验CRC加扰标识:设置固定的CRC加扰标识、采用预配置的CRC加扰标识、根据免授予资源所在的免授予资源池的索引确定CRC加扰标识。
- 根据权利要求9所述的方法,所述方法还包括:根据以下方式至少之一确定终端设备对应的反馈信息在公共的下行控制信息中的位置:采用预配置的终端设备对应的反馈信息的位置、根据预配置给终端设备的解调参考信号的索引确定终端设备对应的反馈信息的位置。
- 根据权利要求9所述的方法,所述终端设备专有信号用于向所述终端设备指示所述数据包解码成功。
- 根据权利要求16所述的方法,所述方法还包括:在检测到所述终端设备专有信号时,确定所述数据包解码成功。
- 根据权利要求9所述的方法,当所述反馈包括所述终端设备专有信号时,通过预配置的方式确定以下至少之一:所述终端设备专有信号所使用的序列;允许用于发送所述终端设备专有信号的时频资源。
- 根据权利要求9、16、17或18所述的方法,所述终端设备专有信号使用的序列为以下之一:伪噪声PN序列、Zadoff-Chu序列、Zadoff-Chu序列的循环扩展序列、Zadoff-Chu序列与伪噪声PN序列的乘 积、Zadoff-Chu序列的循环扩展序列与伪噪声PN序列的乘积。
- 根据权利要求2、3、5、7、8、13、14、15或18所述的方法,所述预配置包括以下至少之一:通过动态信令配置、通过广播信令配置、通过终端设备专有的射频资源控制RRC消息配置。
- 根据权利要求9所述的方法,在接收到来自网络侧的反馈后,所述方法还包括:当满足第一条件时,提前终止所述数据包的发送;所述第一条件包括以下至少之一:从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束,接收到来自网络侧的反馈;所述反馈是公共的下行控制信息,所述公共的下行控制信息指示数据包的接收状态是解码成功。
- 根据权利要求9所述的方法,在接收到来自网络侧的反馈后,所述方法还包括:当满足第二条件时,在预设的重传资源重新发送所述数据包;所述第二条件包括以下至少之一:在所述免授予资源后的第三预设时隙接收到来自网络侧的反馈;所述反馈是所述公共的下行控制信息;所述公共的下行控制信息指示数据包的接收状态是以下之一:没有解码成功、检测到数据包但解码失败、没有检测到数据包;当所述接收状态是检测到数据包但解码失败时,所述公共的下行控制信息不包含重传资源的索引的指示信息。
- 根据权利要求22所述的方法,所述预设的重传资源满足以下至少之一:所述预设的重传资源占用的频带与所述免授予资源的频带相同;所述预设的重传资源包括连续K个时隙;所述预设的重传资源默认开始于接收到所述反馈的时隙后的第四预设时隙。
- 根据权利要求9所述的方法,在接收到来自网络侧的反馈后,所述方法还包括:当满足第三条件时,在重传资源的索引指示的资源重新发送数据包;所述第三条件包括:所述反馈是公共的下行控制信息,且所述公共的下行控制信息包含重传资源的索引的指示信息;所述第三条件还包括以下至少之一:在所述免授予资源后的第三预设时隙接收到来自网络侧的反馈;所述公共的下行控制信息指示数据包的接收状态是检测到数据包但解码失败。
- 根据权利要求24所述的方法,所述重传资源的索引指示的资源满足以下至少之一:所述重传资源的索引指示的资源包括连续K个时隙;所述重传资源的索引指示的资源默认开始于接收到所述反馈的时隙后的第五预设时隙。
- 根据权利要求9所述的方法,在接收到来自网络侧的反馈后,所述方法还包括:当满足第四条件时,提前终止所述数据包在所述免授予资源的发送,并且在重传资源的索引指示的资源重新发送数据包;所述第四条件包括:所述反馈是公共的下行控制信息,且所述公共的下行控制信息包含重传资源的索引的指示信息;所述第四条件还包括以下至少之一:从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束,接收到来自网络侧的反馈;所述公共的下行控制信息指示数据包的接收状态是检测到数据包但解码失败。
- 根据权利要求26所述的方法,所述重传资源的索引指示的资源满足以下之一:所述重传资源的索引指示的资源默认开始于接收到所述反馈的时隙后的第六预设时隙,以及默认结束于所述免授予资源的最后1个时隙;所述重传资源的索引指示的资源包括连续K个时隙,并且默认开始于接收到所述反馈的时隙后的第六预设时隙。
- 根据权利要求26所述的方法,所述提前终止所述数据包在所述免授予资源的发送,包括:默认在所述重传资源的索引指示的资源前的第1个时隙,提前终止所述数据包在所述免授予资源的发送。
- 根据权利要求9所述的方法,在接收到来自网络侧的反馈后,所述方法还包括:当满足第五条件时,在所述用于上行授予的下行控制信息指示的资源重新发送数据包;所述第五条件包括:在所述免授予资源后的第三预设时隙,接收到反馈;所述反馈是用于上行授予的下行控制信息。
- 根据权利要求29所述的方法,所述用于上行授予的下行控制信息指示的资源满足以下至少之一:所述用于上行授予的下行控制信息指示的资源包括连续Z个时隙,所述Z是大于0的整数且Z的值通过用于上行授予的下行控制信息指示;所述用于上行授予的下行控制信息指示的资源默认开始于接收到所述反馈的时隙后的第七预设时隙,或者通过用于上行授予的下行控制信息指示。
- 根据权利要求9所述的方法,在接收到来自网络侧的反馈后, 所述方法还包括:当满足第六条件时,提前终止所述数据包在所述免授予资源的发送并且在所述用于上行授予的下行控制信息指示的资源重新发送数据包;所述第六条件包括:从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束,接收到来自网络侧的反馈;所述反馈是用于上行授予的下行控制信息。
- 根据权利要求31所述的方法,所述用于上行授予的下行控制信息指示的资源满足以下至少之一:所述用于上行授予的下行控制信息指示的资源包括连续Z个时隙,所述Z是大于0的整数且Z的值通过用于上行授予的下行控制信息指示;所述用于上行授予的下行控制信息指示的资源默认开始于接收到所述反馈的时隙后的第七预设时隙,或者通过用于上行授予的下行控制信息指示。
- 根据权利要求32所述的方法,所述提前终止所述数据包在所述免授予资源的发送,包括:默认在上行授予的资源之前的第1个时隙,提前终止所述数据包在免授予资源的发送;或者,默认在接收到所述反馈的时隙后的第八预设时隙,提前终止所述数据包在所述免授予资源的发送;或者,通过下行控制信息指示所述数据包在所述免授予资源的发送的提前终止时隙,在所述提前终止时隙,提前终止所述数据包在所述免授予资源的发送。
- 根据权利要求9所述的方法,所述用于上行授予的下行控制信息包含新数据包指示符。
- 根据权利要求9所述的方法,所述方法还包括:在同时接收到所述用于上行授予的下行控制信息和所述公共的下行控制信息时,按照用于上行授予的下行控制信息重新发送所述数据包。
- 根据权利要求1所述的方法,所述方法还包括:在所述免授予资源之后,停止接收所述反馈,或者,根据所述K的大小确定是否接收所述反馈。
- 根据权利要求1所述的方法,所述数据包使用的混合自动重复请求HARQ进程的编号是0或1。
- 一种反馈方法,所述方法包括:通过终端设备专有信号反馈以下之一:数据包解码成功、数据包解码失败。
- 根据权利要求38所述的方法,所述通过终端设备专有信号反馈数据包解码成功,包括:在确定所述数据包解码成功时,向终端设备发送所述终端设备专有信号。
- 根据权利要求38所述的方法,所述通过终端设备专有信号反馈数据包解码失败,包括:在确定所述数据包解码失败时,向终端设备发送所述终端设备专有信号。
- 根据权利要求38所述的方法,所述方法还包括:预配置以下至少之一:所述终端设备专有信号所使用的序列;允许用于发送所述终端设备专有信号的时频资源。
- 根据权利要求41所述的方法,所述预配置包括以下至少之一:通过动态信令配置、通过广播信令配置、通过终端设备专有的射频资源控制RRC消息配置。
- 根据权利要求38所述的方法,所述终端设备专有信号使用的序列为以下之一:伪噪声PN序列、Zadoff-Chu序列、Zadoff-Chu序列的循环扩展序列、Zadoff-Chu序列与伪噪声PN序列的乘积、Zadoff-Chu序列的循环扩展序列与伪噪声PN序列的乘积。
- 一种数据发送装置,所述装置包括:选择模块和发送模块;其中,选择模块,配置为选择一个免授予资源;发送模块,配置为利用所选择的免授予资源发送数据包;所述免授予资源为:一个频带的连续K个时隙,其中,所述K是大于0的整数。
- 根据权利要求44所述的装置,所述一个频带为以下之一:预配置的一个频带;预配置的多个频带中的一个频带。
- 根据权利要求45所述的装置,所述一个频带为预配置的一个频带时,所述连续K个时隙中的第1个时隙为以下之一:所述一个频带的所有时隙中的任意一个时隙;所述一个频带的第一时隙集合中的一个时隙。
- 根据权利要求46所述的装置,所述第一时隙集合中的一个时隙的时隙索引I slot满足以下条件:I slotmod K=n·(K/N),n=0,1,2,…,N-1,其中,所述N是大于0的整数。
- 根据权利要求45所述的装置,当所述一个频带为预配置的多个频带中的第x个频带时,所述连续K个时隙中的第1个时隙是所述第x个频带的第二时隙集合中的一个时隙;其中,所述x是大于0且小于X的整数,所述X表示所述预配置的多个频带的数目。
- 根据权利要求48所述的装置,所述第二时隙集合中的一个时隙的时隙索引I slot(2)满足以下条件:I slot(2)mod K=(x-1)·(K/X)。
- 根据权利要求45所述的装置,所述发送模块,配置为在所述一个频带为预配置的多个频带中的一个频带时,根据所述数据包到达的时刻选择发送所述数据包的免授予资源。
- 根据权利要求50所述的装置,所述发送模块,配置为选择以下免授予资源作为所述发送数据包的免授予资源:在所述预配置的多个频带的所有免授予资源中位于数据包到达时刻后且最接近数据包到达时刻的免授予资源。
- 根据权利要求39所述的装置,所述装置还包括:接收模块,配置为在所述免授予资源的第1个时隙之后,接收来自网络侧的反馈;所述反馈包括以下至少之一:终端设备专有信号、用于上行授予的下行控制信息、公共的下行控制信息。
- 根据权利要求52所述的装置,所述接收模块,配置为在所述免授予资源的第1个时隙后的设定时间接收来自网络侧的反馈;所述设定时间包括以下至少之一:在所述免授予资源后的第三预设时隙;从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束。
- 根据权利要求52所述的装置,所述用于上行授予的下行控制信息包括一个或者多个终端设备的上行授予信息。
- 根据权利要求52所述的装置,所述公共的下行控制信息用于同时向多个终端设备指示对应数据包的接收状态;其中,所述接收状态包括以下至少之一:解码成功、没有解码成功、检测到数据包但解码失败、没有检测到数据包。
- 根据权利要求52所述的装置,所述接收模块,还配置为在接收到来自网络侧的反馈后,通知发送模块;所述发送模块,还配置为在收到通知后,当满足第一条件时,提前终止所述数据包的发送;所述第一条件包括以下至少之一:从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束,接收到来自网络侧的反馈;所述反馈是公共的下行控制信息,所述公共的下行控制信息指示数据包的接收状态是解码成功。
- 根据权利要求52所述的装置,所述接收模块,还配置为在接收到来自网络侧的反馈后,通知发送模块;所述发送模块,还配置为在收到通知后,当满足第二条件时,在预设的重传资源重新发送所述数据包;所述第二条件包括以下至少之一:在所述免授予资源后的第三预设时隙接收到来自网络侧的反馈;所述反馈是所述公共的下行控制信息;所述公共的下行控制信息指示数据包的接收状态是以下之一:没有解码成功、检测到数据包但解码失败、没有检测到数据包;当所述接收状态是检测到数据包但解码失败时,所述公共的下行控制信息不包含重传资源的索引的指示信息。
- 根据权利要求52所述的装置,所述接收模块,还配置为在接收到来自网络侧的反馈后,通知发送模块;所述发送模块,还配置为在收到通知后,当满足第三条件时,在重传资源的索引指示的资源重新发送数据包;所述第三条件包括:所述反馈是公共的下行控制信息,且所述公共的下行控制信息包含重传资源的索引的指示信息;所述第三条件还包括以下至少之一:在所述免授予资源后的第三预设时隙接收到来自网络侧的反馈;所述公共的下行控制信息指示数据包的接收状态是检测到数据包但解码失败。
- 根据权利要求52所述的装置,所述接收模块,还配置为在接收到来自网络侧的反馈后,通知发送模块;所述发送模块,还配置为在收到通知后,当满足第四条件时,提前终止所述数据包在所述免授予资源的发送,并且在重传资源的索引指示的资源重新发送数据包;所述第四条件包括:所述反馈是公共的下行控制信息,且所述公共的下行控制信息包含重传资源的索引的指示信息;所述第四条件还包括以下至少之一:从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束,接收到来自网络侧的反馈;所述公共的下行控制信息指示数据包的接收状态是检测到数据包但解码失败。
- 根据权利要求52所述的装置,所述接收模块,还配置为在接收到来自网络侧的反馈后,通知发送模块;所述发送模块,还配置为在收到通知后,当满足第五条件时,在所述用于上行授予的下行控制信息指示的资源重新发送数据包;所述第五条件包括:在所述免授予资源后的第三预设时隙,接收到反馈;所述反馈是用于上行授予的下行控制信息。
- 根据权利要求52所述的装置,所述接收模块,还配置为在接收到来自网络侧的反馈后,通知发送模块;所述发送模块,还配置为在收到通知后,当满足第六条件时,提前 终止所述数据包在所述免授予资源的发送并且在所述用于上行授予的下行控制信息指示的资源重新发送数据包;所述第六条件包括:从所述免授予资源的第1个时隙后的第一预设时隙开始至所述免授予资源的最后1个时隙前的第二预设时隙结束,接收到来自网络侧的反馈;所述反馈是用于上行授予的下行控制信息。
- 一种反馈装置,所述装置包括通知模块和反馈模块;其中,通知模块,配置为通知反馈模块;反馈模块,配置为在收到通知后,通过终端设备专有信号反馈以下之一:数据包解码成功、数据包解码失败。
- 一种计算机可读存储介质,其上存储有计算机程序,该计算机程序被处理器执行时实现权利要求1至37任一项所述的数据发送方法的步骤;或者,该计算机程序被处理器执行时实现权利要求38至43任一项所述的数据反馈方法的步骤。
- 一种数据发送设备,包括存储器和处理器,所述存储器存储有可在处理器上运行的计算机程序,所述处理器执行所述程序时实现权利要求1至37任一项所述的数据发送方法的步骤。
- 一种数据反馈设备,包括存储器和处理器,所述存储器存储有可在处理器上运行的计算机程序,所述处理器执行所述程序时实现权利要求38至43任一项所述的数据反馈方法的步骤。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113498153A (zh) * | 2020-04-02 | 2021-10-12 | 展讯通信(上海)有限公司 | 边链路监听方法、设备及存储介质 |
WO2022082675A1 (zh) * | 2020-10-22 | 2022-04-28 | 华为技术有限公司 | 通信方法及装置 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108631953B (zh) * | 2017-03-24 | 2022-06-28 | 中兴通讯股份有限公司 | 一种数据发送、反馈方法及装置 |
KR102395189B1 (ko) * | 2017-08-17 | 2022-05-06 | 삼성전자주식회사 | 무선 통신 시스템에서 비-승인 통신을 위한 장치 및 방법 |
US11012996B2 (en) * | 2017-11-27 | 2021-05-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Devices and methods for scheduling data transmissions in a wireless communication system |
CN110351020B (zh) * | 2018-04-03 | 2021-06-15 | 华为技术有限公司 | 一种传输数据的方法、装置和系统 |
US10945256B2 (en) * | 2018-05-22 | 2021-03-09 | Mediatek Singapore Pte. Ltd. | Method and apparatus for reporting hybrid automatic repeat request-acknowledgement information for different service types in mobile communications |
US11864176B2 (en) * | 2019-07-26 | 2024-01-02 | Qualcomm Incorporated | Extended slot aggregation scheduling in IAB network |
CN112312559B (zh) * | 2019-08-02 | 2022-07-22 | 华为技术有限公司 | 通信方法和通信装置 |
US11540310B2 (en) | 2019-08-12 | 2022-12-27 | Qualcomm Incorporated | Group scheduling applications |
CN113141234B (zh) * | 2020-01-19 | 2022-11-29 | 中国移动通信有限公司研究院 | 一种重复传输的方法、终端及基站 |
CN113347600B (zh) * | 2021-06-02 | 2022-04-22 | 中车青岛四方机车车辆股份有限公司 | 一种实现资源调度的方法、系统、设备及列车 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104918335A (zh) * | 2014-03-10 | 2015-09-16 | 苹果公司 | 在免许可射频频段分量载波上的上行链路传输 |
CN105101223A (zh) * | 2014-05-16 | 2015-11-25 | 北京三星通信技术研究有限公司 | 一种在免许可频段上进行数据传输的方法和设备 |
CN105284172A (zh) * | 2013-03-08 | 2016-01-27 | 华为技术有限公司 | 用于上行链路免授权传输方案的系统和方法 |
CN106507497A (zh) * | 2015-09-08 | 2017-03-15 | 华为技术有限公司 | 用于上行数据传输的方法、终端设备和网络设备 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6151312A (en) * | 1996-02-12 | 2000-11-21 | Stanford Telecommunications, Inc. | Network protocol for wireless broadband-ISDN using ATM |
US8254394B1 (en) * | 1999-06-29 | 2012-08-28 | Cisco Technology, Inc. | Technique for providing constant bit rate (CBR) service over a time-slotted access channel |
US8045574B2 (en) * | 2008-02-27 | 2011-10-25 | Bae Systems Information And Electronic Systems Integration Inc. | Contention protocols for wireless medium access in communication networks |
CN101621361B (zh) * | 2008-07-01 | 2013-07-24 | 上海无线通信研究中心 | 广播、组播反馈信令的传输方法 |
JP5628170B2 (ja) * | 2008-08-11 | 2014-11-19 | コーニンクレッカ フィリップス エヌ ヴェ | ボディエリアネットワークにおける効率的なデータ伝送のための技術 |
US8879497B2 (en) * | 2011-01-05 | 2014-11-04 | Panasonic Intellectual Property Corporation Of America | Terminal device, base station device, transmitting method and receiving method |
CN102916767B (zh) * | 2011-08-05 | 2015-01-28 | 华为技术有限公司 | 一种高速专用物理控制信道上行反馈方法及相关设备 |
JP6190889B2 (ja) * | 2012-11-09 | 2017-08-30 | インターデイジタル パテント ホールディングス インコーポレイテッド | ビーム形成方法およびビームを使用するための方法 |
US20150006422A1 (en) * | 2013-07-01 | 2015-01-01 | Eharmony, Inc. | Systems and methods for online employment matching |
HUE042226T2 (hu) * | 2014-03-21 | 2019-06-28 | Sun Patent Trust | Ütemezéskérési eljárás D2D kommunikációhoz |
CN111867120B (zh) * | 2014-04-04 | 2024-05-31 | 北京三星通信技术研究有限公司 | 数据传输的方法、基站及终端 |
CN105814963B (zh) * | 2014-05-27 | 2019-09-20 | 华为技术有限公司 | 一种数据传输方法、设备及系统 |
US11057921B2 (en) * | 2014-10-01 | 2021-07-06 | Samsung Electronics Co., Ltd. | System and method for improving spectral efficiency and coverage for user equipments |
US10735166B2 (en) * | 2015-05-29 | 2020-08-04 | Huawei Technologies Co., Ltd. | System and method of UE-centric radio access procedure |
CN111654914B (zh) * | 2015-09-08 | 2023-02-14 | 华为技术有限公司 | 用于上行数据传输的方法、网络设备和终端设备 |
CN106804116B (zh) * | 2015-09-25 | 2020-04-28 | 华为技术有限公司 | 一种反馈信息的传输方法和基站以及用户设备 |
US11076370B2 (en) * | 2016-06-07 | 2021-07-27 | Texas Instruments Incorporated | Node synchronization for networks |
US10187183B2 (en) * | 2016-07-29 | 2019-01-22 | Huawei Technologies Co., Ltd. | System and method for retransmission of grant-free traffic |
US10673593B2 (en) * | 2016-11-03 | 2020-06-02 | Huawei Technologies Co., Ltd. | HARQ signaling for grant-free uplink transmissions |
US10869333B2 (en) * | 2016-12-16 | 2020-12-15 | Huawei Technologies Co., Ltd. | Systems and methods for mixed grant-free and grant-based uplink transmissions |
US10652866B2 (en) * | 2017-03-20 | 2020-05-12 | Huawei Technologies Co., Ltd. | Systems and methods for supporting asynchronous uplink HARQ and multiple simultaneous transmissions |
CN108631953B (zh) * | 2017-03-24 | 2022-06-28 | 中兴通讯股份有限公司 | 一种数据发送、反馈方法及装置 |
CN111095988B (zh) * | 2017-08-11 | 2021-07-06 | 中兴通讯股份有限公司 | 搜索空间监视 |
-
2017
- 2017-03-24 CN CN201710184699.5A patent/CN108631953B/zh active Active
-
2018
- 2018-02-26 WO PCT/CN2018/077277 patent/WO2018171387A1/zh active Application Filing
- 2018-02-26 US US16/497,274 patent/US11343811B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105284172A (zh) * | 2013-03-08 | 2016-01-27 | 华为技术有限公司 | 用于上行链路免授权传输方案的系统和方法 |
CN104918335A (zh) * | 2014-03-10 | 2015-09-16 | 苹果公司 | 在免许可射频频段分量载波上的上行链路传输 |
CN105101223A (zh) * | 2014-05-16 | 2015-11-25 | 北京三星通信技术研究有限公司 | 一种在免许可频段上进行数据传输的方法和设备 |
CN106507497A (zh) * | 2015-09-08 | 2017-03-15 | 华为技术有限公司 | 用于上行数据传输的方法、终端设备和网络设备 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113498153A (zh) * | 2020-04-02 | 2021-10-12 | 展讯通信(上海)有限公司 | 边链路监听方法、设备及存储介质 |
CN113498153B (zh) * | 2020-04-02 | 2022-12-09 | 展讯通信(上海)有限公司 | 边链路监听方法、设备及存储介质 |
WO2022082675A1 (zh) * | 2020-10-22 | 2022-04-28 | 华为技术有限公司 | 通信方法及装置 |
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