WO2022027671A1 - Procédé, dispositif et produit programme d'ordinateur pour la communication sans fil - Google Patents

Procédé, dispositif et produit programme d'ordinateur pour la communication sans fil Download PDF

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Publication number
WO2022027671A1
WO2022027671A1 PCT/CN2020/107989 CN2020107989W WO2022027671A1 WO 2022027671 A1 WO2022027671 A1 WO 2022027671A1 CN 2020107989 W CN2020107989 W CN 2020107989W WO 2022027671 A1 WO2022027671 A1 WO 2022027671A1
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Prior art keywords
wireless communication
scheduling information
information
piece
communication method
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PCT/CN2020/107989
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English (en)
Inventor
Jianqiang DAI
Nan Zhang
Wei Cao
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Zte Corporation
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Priority to PCT/CN2020/107989 priority Critical patent/WO2022027671A1/fr
Publication of WO2022027671A1 publication Critical patent/WO2022027671A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users

Definitions

  • the present disclosure is generally directed to wireless communication.
  • the present disclosure is directed to a method, device, and computer program product for wireless communication.
  • the present disclosure relates to 5G wireless communication.
  • each user equipment (UE) is scheduled by a downlink control information (DCI) in physical layer (also referred to as L1) . If UEs with requesting many services are scheduled, significant physical downlink control channel (PDCCH) resources for DCI transmission would be needed, causing much L1 signaling overhead.
  • DCI downlink control information
  • L1 physical layer
  • NTN non-terrestrial network
  • IoT Internet of Things
  • satellites such as Geostationary Earth Orbit (GEO) satellites or Low Earth Orbit (LEO) satellites, can provide continental local or regional services.
  • GEO Geostationary Earth Orbit
  • LEO Low Earth Orbit
  • the locations of a group of UEs may be close, and the wireless channel state, interference environment, capability, timing delay, and frequency Doppler shift are similar. Also, the group of UEs may require the same service. Accordingly, the DCIs for the UEs may contain same or similar indication information.
  • scheduling information for may contain the same indication information as well.
  • the present disclosure relates to methods, devices, and computer program products for wireless communication, which can reduce the resource for transmitting transmission scheduling information, and avoid the congestion on the corresponding channel.
  • the wireless communication method includes: transmitting, by a wireless communication node to a plurality of wireless communication devices, a piece of scheduling information.
  • the piece of scheduling information is used to schedule the wireless communication devices.
  • the wireless communication method includes: detecting, by a wireless communication device from a wireless communication node, a piece of scheduling information.
  • the piece of scheduling information is used to schedule a plurality of wireless communication devices.
  • the communication device includes a communication unit and a processor.
  • the processor is configured to transmit a piece of scheduling information to a plurality of wireless communication devices by the communication unit, in which the piece of scheduling information is used to schedule the wireless communication devices.
  • the communication device includes a communication unit and a processor.
  • the processor is configured to detect a piece of scheduling information from a wireless communication node by the communication unit, in which the piece of scheduling information is used to schedule a plurality of wireless communication devices.
  • the method further includes transmitting, by the wireless communication node, a piece of the second scheduling information to one of the wireless communication devices.
  • a group identification is carried in a bit field of the piece of the scheduling information, and the group identification is corresponding to a group of wireless communication devices.
  • a group identification is carried in the scheduling information by being cyclic redundancy check scrambled with a temporary identity, and the group identification is corresponding to a group of wireless communication devices.
  • the piece of the scheduling information carries an enable indicator
  • a first group of bit fields corresponds to a group of wireless communication devices
  • a second group of bit fields corresponds to another group of wireless communication devices
  • the enable indicator is used to enable at least one of the first group of bit fields and the second group of bit fields.
  • the piece of the scheduling information carries information corresponding to all wireless communication devices in a cell.
  • the piece of the scheduling information includes group characteristic information specific to a group of wireless communication devices.
  • the piece of the scheduling information includes a channel state related indicator corresponding to a group of wireless communication devices.
  • the piece of the scheduling information includes at least one of indicators related to requirement of delay, reliability, time domain adjustment ability, frequency domain adjustment ability, positioning.
  • the piece of the scheduling information includes at least one of flag information, synchronization information, spatial related information, procedure control information, and transmission resource information corresponding to a group of wireless communication devices.
  • the piece of the scheduling information includes at least one of an acknowledgement feedback, a retransmission indicator, redundancy information, and a new data indicator.
  • the piece of the scheduling information includes a timing advance adjustment of a group of wireless communication devices.
  • the piece of the scheduling information includes modulation and coding scheme information.
  • the piece of the scheduling information includes repetition information.
  • the piece of the scheduling information includes at least one of time resource information, frequency resource information, space resource information, and reference signal resource information.
  • the piece of the scheduling information includes at least one of a BandWidth Part switching indicator and a beam switching indicator.
  • the piece of the scheduling information includes at least one of transmission configuration indication, information about a reference signal, and a BandWidth Part identity.
  • the second scheduling information contains partial information contained in third scheduling information, and the third scheduling information is capable of scheduling a corresponding wireless communication device.
  • the second scheduling information and the third scheduling information are cyclic redundancy check scrambled with the same temporary identity.
  • the piece of the scheduling information includes an amount of wireless communication devices in a group of wireless communication devices.
  • the piece of the scheduling information includes assistance information for decoding the pieces of second scheduling information.
  • the assistance information includes aggregation level information.
  • the method further includes configuring, by the wireless communication node to the wireless communication devices, an information element, wherein the information element includes an indicator enabling or disabling the piece of scheduling information.
  • a data transmission or configuration applying is performed after a time offset from both of the piece of scheduling information and the second scheduling information are detected.
  • the method further includes conducting, by the wireless communication device, a switching in response to the scheduling information contains a BandWidth Part switching indicator or a beam switching indicator.
  • the method further includes conducting, by the wireless communication device, a switching in response to the scheduling information comprising at least one of a transmission configuration indication, information about a reference signal, and a BandWidth Part identity.
  • the at least one of the transmission configuration indication, the information about the reference signal, and the BandWidth Part identity comprised in the scheduling information is different from a current serving or previous transmission configuration indication, information about a reference signal, or BandWidth Part identity.
  • the method further includes refraining, by the wireless communication device, from detecting other scheduling information during a valid period, in which the valid period starts from both of the scheduling information and the second scheduling information are detected and ends at a data transmission corresponding to the scheduling information and the second scheduling information is finished.
  • the method further includes detecting, by the wireless communication device, third scheduling information; aborting, by the wireless communication device, a data transmission scheduled by a combination of the scheduling information and the second scheduling information; and performing, by the wireless communication device, another data transmission according to the third scheduling information.
  • the method further includes stopping detecting third scheduling information after the scheduling information or the second scheduling information is detected; or stopping detecting the scheduling information and the second scheduling information after the third scheduling information is detected.
  • the method further includes detecting third scheduling information without concurrently detecting the scheduling information and the second scheduling information; or detecting the scheduling information and the second scheduling information without concurrently detecting the third scheduling information.
  • the method further includes detecting, by the wireless communication device from the wireless communication node, the piece of scheduling information, in response to the wireless communication device being configured with group information.
  • the method further includes detecting, by the wireless communication device from the wireless communication node, the piece of scheduling information in response to the reception of information element including an indicator to enable or disable the piece of scheduling information.
  • the present disclosure also relates to a computer program product including a computer-readable program medium code stored thereupon, the code, when executed by a processor, causing the processor to implement a wireless communication method recited in any of foregoing methods.
  • FIG. 1 illustrates a wireless communication method according to an embodiment of the present disclosure
  • FIG. 2 shows an example of for a wireless communication method according to an embodiment of the present disclosure
  • FIG. 3 illustrates a wireless communication method according to an embodiment of the present disclosure
  • Fig. 4 shows an example of a wireless communication method according to an embodiment of the present disclosure
  • FIG. 5 shows a schematic diagram of a wireless communication device according to an embodiment of the present disclosure.
  • FIG. 6 shows a schematic diagram of a wireless communication node according to an embodiment of the present disclosure.
  • the present disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. Additionally, the specific order and/or hierarchy of steps in the methods disclosed herein are merely exemplary approaches. Based upon design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be re-arranged while remaining within the scope of the present disclosure. Thus, those of ordinary skill in the art will understand that the methods and techniques disclosed herein present various steps or acts in a sample order, and the present disclosure is not limited to the specific order or hierarchy presented unless expressly stated otherwise.
  • the embodiments of the present disclosure can be used in TN or NTN area.
  • One aspect of the present disclosure is related to a wireless communication method.
  • FIG. 1 illustrates a wireless communication method 100 according to an embodiment of the present disclosure.
  • the wireless communication method 100 can be performed by using a wireless communication node.
  • a wireless communication node such as a BS or a satellite, will be used in a descriptive example, but the present disclosure is not limited in this regard. Details of the wireless communication node can be ascertained by referring to the paragraphs related to Fig. 6 below.
  • the wireless communication method 100 includes operation 110.
  • the wireless communication node transmits a piece of scheduling information to a plurality of wireless communication devices, in which the piece of scheduling information is used to schedule the wireless communication devices.
  • the wireless communication devices can be scheduled by the same piece of scheduling information, the resource for transmitting transmission scheduling information can be reduced, and the congestion on the corresponding channel can be avoided.
  • wireless communication devices respectively receive different pieces of scheduling information for scheduling.
  • the scheduling information can be DCI (e.g., the DCI comprises several bit fields) or contain information in a regular DCI.
  • the scheduling information is used to schedule the wireless communication devices for performing data transmissions.
  • the scheduling information is used to schedule the wireless communication devices to perform a configuration applying, such as perform a switching of the BandWidth Part (BWP) (i.e., switching the BWP of the wireless communication device from one to another) .
  • BWP BandWidth Part
  • the scheduling information contains all the information needed for scheduling the wireless communication devices.
  • the scheduling information may be considered as broadcast scheduling information and can be used in broadcast services.
  • a wireless communication node ND can transmit the scheduling information to wireless communication devices WD1-WD5, so as to schedule the wireless communication devices WD1-WD5 according to the scheduling information.
  • the scheduling information may only include a part of the information for scheduling the wireless communication devices.
  • the wireless communication method 100 further includes an operation of the wireless communication node transmitting a piece of the second scheduling information to one of the wireless communication devices.
  • the piece of the second scheduling information is used to schedule the one of the wireless communication devices.
  • the piece of the second scheduling information includes another part of the information for scheduling the one of the wireless communication devices which is not contained in the scheduling information.
  • the scheduling information and the second scheduling information are collaboratively used to schedule the one of the wireless communication devices.
  • the scheduling information and the second scheduling information are DCI or contain information in a regular DCI. In one embodiment, the scheduling information and the second scheduling information contain different information in a regular DCI.
  • the scheduling information contains information for multiple wireless communication devices, and the second scheduling information contains information for single wireless communication device.
  • the scheduling information may be considered as common scheduling information and the second scheduling information may be considered as device specific scheduling information.
  • the wireless communication node ND can transmit the same piece of the scheduling information (e.g., common scheduling information) to two wireless communication devices WD1, WD2, and separately transmit two pieces of the second scheduling information SSI#1, SSI#2 (e.g., device specific scheduling information) to the wireless communication devices WD1, WD2.
  • the common scheduling information and the second scheduling information SSI#1 are used to schedule the wireless communication device WD1, and common scheduling information and the second scheduling information SSI#2 are used to schedule the wireless communication device WD2.
  • the wireless communication node in broadcast service, does not transmit second scheduling information to the wireless communication devices, since the scheduling information contains all information needed to schedule the wireless communication devices.
  • scheduling information In the paragraphs below, details of the scheduling information and the second scheduling information will be described. It should be noted that, the features of the scheduling information described below are not limited to the broadcast scheduling information or the non-broadcast scheduling information (i.e., common scheduling information) , unless expressly stated otherwise.
  • a group identification is carried in a bit field of the piece of the scheduling information, and the group identification is corresponding to a group of the wireless communication devices.
  • the group identification is used to indicate a certain group (also called target group hereinafter) of the wireless communication devices the scheduling information being transmitted.
  • the group identification is used to indicate the scheduling information is being transmitted to the wireless communication devices WD1, WD2 in group GP1, or is being transmitted to the wireless communication devices WD3-WD5 in group GP2.
  • a group identification is carried in the scheduling information by being cyclic redundancy check (CRC) scrambled with a temporary identity, and the group identification is corresponding to a group of wireless communication devices (i.e., the wireless communication devices in the target group) .
  • the temporary identity may be a Radio Network Temporary Identity (RNTI) , but is not limited thereto.
  • the piece of the scheduling information carries or includes an enable indicator, a first group of bit fields corresponds to a group (e.g., the target group) of wireless communication devices, and a second group of bit fields corresponds to another group (e.g., another target group) of wireless communication devices.
  • the enable indicator is used to enable at least one of the first group of bit fields and the second group of bit fields.
  • the piece of the scheduling information may include a first group of bit fields, a second group of bit fields, a third group of bit fields or more groups.
  • the enable indicator can enable the first group of bit fields (e.g., when the enable indicator is “10” ) , to allow the first group of bit fields to be used as a group identification indicating the first group (e.g., group GP1) of the wireless communication devices to which the scheduling information is being transmitted.
  • the enable indicator can enable the second group of bit fields (e.g., when the enable indicator is “01” ) , to allow the second group of bit fields to be used as a group identification indicating the second group (e.g., group GP2) of the wireless communication devices to which the scheduling information is being transmitted.
  • the piece of the scheduling information carries information corresponding to all wireless communication devices in a cell.
  • the cell can be the service area of the wireless communication node.
  • the piece of the scheduling information carries the information indicating the scheduling information is transmitted to all the wireless communication devices within the service area of the wireless communication node.
  • the service area may be the area on surface of earth under the cover of a satellite radio beam.
  • the piece of the scheduling information includes group characteristic information specific to a group (e.g., the target group) of wireless communication devices.
  • the group characteristic information can be a piece of information that is applicable to all the wireless communication devices in the target group.
  • the piece of the scheduling information includes a channel state related indicator corresponding to a group (e.g., the target group) of wireless communication devices.
  • the channel state related indicator can include a channel state indicator.
  • the piece of the scheduling information may include a channel state related indicator corresponding to the wireless communication devices WD1, WD2 in group GP1 when the scheduling information is being transmitted to group GP1.
  • the piece of the scheduling information includes at least one of indicators related to requirement of delay, reliability, time domain adjustment ability, frequency domain adjustment ability, positioning. In one embodiment, this/these indicators correspond to the target group of the wireless communication devices.
  • the piece of the scheduling information may include indicators related to requirement of delay, reliability, time domain adjustment ability, frequency domain adjustment ability, positioning of the wireless communication devices WD1, WD2 in group GP1 when the scheduling information being transmitted to group GP1.
  • the piece of the scheduling information includes at least one of flag information, synchronization information, spatial related information, procedure control information, and transmission resource information corresponding to a group of wireless communication devices (e.g., the wireless communication devices in the target group) .
  • the flag information may include a flag indicating the format of the scheduling information, such as DCI format N0, DCI format N1, DCI format 6-0A, DCI format 6-1A, DCI format 6-0B, or DCI format 6-1B, but is not limited in this regard.
  • the piece of the scheduling information includes at least one of an acknowledgement feedback, a retransmission indicator, redundancy information, and a new data indicator.
  • this/these information/indicators correspond to the target group of the wireless communication devices.
  • the acknowledgement feedback may include an ACK or Fallback indicator.
  • the retransmission indicator may include a Hybrid Automatic Repeat Request (HARQ) process number.
  • the redundancy information may include information of a redundancy version.
  • the piece of the scheduling information includes a timing advance adjustment of a group (e.g., the target group) of wireless communication.
  • the piece of the scheduling information includes at least a piece of modulation and coding scheme (MCS) information.
  • MCS modulation and coding scheme
  • the at least a piece of MCS information may correspond to a group of wireless communication devices (e.g., the wireless communication devices in the target group) .
  • the MCS information may indicate an MCS adopted by both of the wireless communication devices WD1, WD2 when the scheduling information being transmitted to group GP1.
  • a default modulation scheme is set as QPSK (Quadrature Phase Shift Keying) . In this case, the information of modulation is no need to contained in the scheduling information.
  • the piece of the scheduling information includes at least a piece of repetition information. In one embodiment, this information correspond to the target group of the wireless communication devices. In one embodiment, the repetition information may include at least one of a NPUSCH repetition adjustment, repetition number information, and DCI subframe repetition information.
  • the piece of the scheduling information includes at least one of time resource information, frequency resource information, space resource information, and reference signal resource information. In one embodiment, this/these information correspond to the target group of the wireless communication devices. In one embodiment, the at least one of the time resource information, the frequency resource information, the space resource information, and the reference signal resource information may include at least one of a subcarrier indication, resource assignment information, and scheduling delay information.
  • the piece of the scheduling information includes at least one of a BWP switching indicator and a beam switching indicator. In one embodiment, these indicators correspond to the target group of the wireless communication devices. In one embodiment, the BWP switching indicator is used to make the wireless communication devices perform BWP switching. In another embodiment, the beam switching indicator is used to make the wireless communication devices perform beam switching.
  • the piece of the scheduling information includes at least one of transmission configuration indication (TCI) , information about a reference signal, and a BWP identity.
  • the reference signal may include a Channel State Information Reference Signal (CSI-RS) .
  • CSI-RS Channel State Information Reference Signal
  • the information mentioned above corresponds to the target group of the wireless communication devices. In one embodiment, the information mentioned above allows the wireless communication devices to determine whether to perform beam switching.
  • the second scheduling information contains partial information contained in third scheduling information, in which the third scheduling information is capable of scheduling a corresponding wireless communication device.
  • the third scheduling information contains all the information needed for scheduling a corresponding one wireless communication device.
  • the third scheduling information contains all the information needed for scheduling one of the wireless communication devices WD1-WD5 in Fig. 2.
  • the third scheduling information may be a regular DCI or contain all information in a regular DCI, but is not limited thereto.
  • the second scheduling information may contain some information set forth in DCI format N0.
  • the second scheduling information may contain at least one of subcarrier indication, scheduling delay, resource assignment, DCI subframe repetition number, redundancy version, new data indicator, number of scheduled TB for Unicast, and HARQ process number.
  • the scheduling information may contain whole information contained in the third scheduling information. In one embodiment, in non-broadcast services, the scheduling information may contain partial information contained in the third scheduling information which are not contained in the second scheduling information.
  • the second scheduling information and the third scheduling information are CRC scrambled with the same temporary identity.
  • the temporary identity may be a RNTI.
  • the piece of scheduling information may include assistance information for decoding the pieces of second scheduling information.
  • the assistance information includes a piece of aggregation level information but is not limited thereto.
  • the method 100 further includes an operation of configuring, by the wireless communication node to the wireless communication devices, an information element, in which the information element includes an indicator enabling or disabling the piece of scheduling information.
  • the information element may be a high layer signaling.
  • the information element may be configured to a UE before scheduling.
  • the information element may be used to configure the wireless communication devices before the wireless communication node schedules the wireless communication devices.
  • the scheduling information may contain an amount of wireless communication devices in a group (e.g., the target group) of wireless communication devices.
  • the scheduling information may contain information indicating that there are two wireless communication devices in group GP1 when the scheduling information is being transmitted to the wireless communication devices WD1, WD2 in group GP1.
  • the scheduling information may contain information indicating that there are three wireless communication devices in group GP2 when the scheduling information is being transmitted to the wireless communication devices WD3-WD5 in group GP2.
  • the scheduling information may further contain padding bits and/or reserved bits, but the present disclosure is not limited to such embodiments
  • scheduling information is provided in some examples below, but the present disclosure is not limited to these examples. Besides, although the scheduling information used in non-broadcast services are taken as examples in the paragraphs below, the present disclosure is not limited thereto.
  • the scheduling information may contain some information set forth in DCI format N0.
  • the scheduling information may contain a flag indicating that the scheduling information adopts DCI format N0 (e.g., 1 bit) .
  • the scheduling information may contain MCS (e.g., 4 bits) , repetition number (e.g., 3 bits) , and reserved bits in DCI format N0.
  • the scheduling information may also contain channel state indicator, in which the groups of the wireless communication devices can be classified according to channel state indicator.
  • the second scheduling information may contain Y-X bits.
  • N ⁇ Y bits are needed when using the regular DCI
  • X + N ⁇ (Y -X) bits are needed when using the common scheduling information and the device specific scheduling information.
  • the scheduling information may contain the flag indicating that the scheduling information adopts DCI format N0.
  • the scheduling information may contain scheduling delay (e.g., 2 bits) , HARQ process number (e.g., 1 bit) , and reserved bits in DCI format N0.
  • the scheduling information may also contain requirement of delay and procedure control information, in which the groups of the wireless communication devices can be classified according to requirement of delay and procedure control information.
  • the scheduling information may contain the flag indicating that the scheduling information adopts DCI format N0.
  • the scheduling information may contain timing advance adjustment (e.g., 6 bits) and reserved bits in DCI format N0.
  • the scheduling information may also contain synchronization information, in which the groups of the wireless communication devices can be classified according timing information adjustment ability.
  • the scheduling information may contain some information set forth in DCI format N1.
  • the scheduling information may contain a flag indicating that the scheduling information adopts DCI format N1 (e.g., 1 bit) .
  • the scheduling information may contain a group identification and number of wireless communication devices in the target group.
  • the scheduling information may contain MCS (e.g., 4 bits) , repetition number (e.g., 4 bits) , and reserved bits in DCI format N1.
  • the scheduling information may also contain channel state indicator, in which the groups of the wireless communication devices can be classified according to channel state indicator.
  • the scheduling information may contain some information set forth in DCI format 6-0A.
  • the scheduling information may contain a flag indicating that the scheduling information adopts DCI format 6-0A.
  • the scheduling information may contain MCS (e.g., 3 or 4 bits) , repetition number (e.g., 2 or 4 bits) , and reserved bits in DCI format 6-0A.
  • the scheduling information may also contain channel state indicator, in which the groups of the wireless communication devices can be classified according to channel state indicator.
  • the scheduling information may contain some information set forth in DCI format 6-1A.
  • the scheduling information may contain a flag indicating that the scheduling information adopts DCI format 6-1A.
  • the scheduling information may contain MCS (e.g., 4 bits) , repetition number (e.g., 2 bits) , and reserved bits in DCI format 6-1A.
  • the scheduling information may also contain channel state indicator, in which the groups of the wireless communication devices can be classified according to channel state indicator.
  • the scheduling information may contain some information set forth in DCI format 6-0B.
  • the scheduling information may contain a flag indicating that the scheduling information adopts DCI format 6-0A.
  • the scheduling information may contain MCS (e.g., 3 or 4 bits) , repetition number (e.g., 3 bits) , and reserved bits in DCI format 6-0B.
  • the scheduling information may also contain channel state indicator, in which the groups of the wireless communication devices can be classified according to channel state indicator.
  • the scheduling information may contain some information set forth in DCI format 6-1B.
  • the scheduling information may contain a flag indicating that the scheduling information adopts DCI format 6-1B.
  • the scheduling information may contain MCS (e.g., 4 bits) , repetition number (e.g., 2 bits) , and reserved bits in DCI format 6-1B.
  • the scheduling information may also contain channel state indicator, in which the groups of the wireless communication devices can be classified according to channel state indicator.
  • the scheduling information, second scheduling information, and third scheduling information can be or contain other formats of information, such as a format of Radio Resource Control (RRC) message.
  • RRC Radio Resource Control
  • the content of the scheduling information, second scheduling information, and third scheduling information should not be limited to the information related to DCI.
  • Another aspect of the present disclosure is related to another wireless communication method.
  • FIG. 3 shows a flowchart of a wireless communication method 300 according to an embodiment of the present disclosure.
  • the wireless communication method 300 can be performed by using a wireless communication device (e.g., a UE) .
  • a wireless communication device e.g., a UE
  • a wireless communication device will be used in a descriptive example, but the present disclosure is not limited in this regard. Details of the wireless communication device can be ascertained by referring to the paragraphs related to Fig. 5 below.
  • the wireless communication method 300 includes operation 310.
  • a wireless communication device detects a piece of scheduling information from a wireless communication node.
  • the piece of scheduling information is used to schedule a plurality of wireless communication devices.
  • one of the plurality of wireless communication devices detects the piece of scheduling information.
  • the resource for transmitting transmission scheduling information can be reduced, and the congestion on the corresponding channel can be avoided.
  • the wireless communication method 300 further includes an operation of the wireless communication device detecting a piece of second scheduling information from the wireless communication node.
  • a data transmission or configuration applying is performed after a time offset from both of the piece of scheduling information and the second scheduling information are detected.
  • both of the wireless communication devices WD1, WD2 in the target group detect the same piece of scheduling information.
  • the wireless communication device WD1, WD2 separately detect different pieces of second scheduling information (e.g., via carriers with different frequencies) .
  • the wireless communication device WD1, WD2 separately perform data transmission information (e.g., via carriers with different frequencies) or configuration applying during the period between time points t44 and t45.
  • the wireless communication device conducts a switching (e.g., a BWP or beam switching) in response to the scheduling information contains a BWP switching indicator or a beam switching indicator.
  • a switching e.g., a BWP or beam switching
  • the wireless communication device can switch the BWP of data transmission to another BWP indicated by the BWP switching indicator.
  • the wireless communication device can switch the beam of data transmission to another beam indicated by the beam switching indicator.
  • the wireless communication device conducts a switching (e.g., beam switching) in response to the scheduling information contains at least one of a TCI, information about a reference signal, and a BWP identity, in which the at least one of the TCI, the information about the reference signal, and the BWP identity contained by the scheduling information is different from a current serving or previous TCI, information about a reference signal, or BWP identity.
  • the reference signal reference signal may include a Channel State Information Reference Signal (CSI-RS) .
  • CSI-RS Channel State Information Reference Signal
  • the wireless communication device conducts a beam switching in response to any one of a current serving TCI, information about the reference signal, or BWP identity is different from their counterparts in the scheduling information.
  • the wireless communication device may also conduct a beam switching in response to any one of a previous serving TCI, information about the reference signal, or BWP identity is different from their counterparts in the scheduling information.
  • the wireless communication device refrains from detecting other scheduling information during a valid period, in which the valid period starts from both of the scheduling information and the second scheduling information are detected and ends at a data transmission corresponding to the scheduling information and the second scheduling information is finished.
  • the valid period can be the period between time points t43 and t45 in Fig. 4.
  • the wireless communication device would not detect other scheduling information until the current data transmission is done.
  • the other scheduling information can be the third scheduling information mentioned above, or another piece of the scheduling information or the second scheduling information.
  • the wireless communication device detects third scheduling information, aborts a data transmission scheduled by a combination of the scheduling information and the second scheduling information, and performs another data transmission according to the third scheduling information. In one embodiment, the wireless communication device aborts the data transmission according to the third scheduling information.
  • the wireless communication device would still detect the third scheduling information. If the wireless communication device the third scheduling information is detected, the wireless communication device would terminate the current data transmission and start scheduling or performing the data transmission corresponding to the detection of the third scheduling information.
  • the wireless communication device stops detecting third scheduling information after the scheduling information or the second scheduling information is detected. In one embodiment, the wireless communication device stops detecting the scheduling information and the second scheduling information after the third scheduling information is detected. In other words, the wireless communication device can be configured to concurrently detect the third scheduling information and the scheduling information or second scheduling information. However, after the scheduling information or second scheduling information is detected, the wireless communication device stops detecting the third scheduling information, and vice versa.
  • the wireless communication device detects third scheduling information without concurrently detecting the scheduling information and the second scheduling information. In one embodiment, the wireless communication device detects the scheduling information and the second scheduling information without concurrently detecting the third scheduling information. In other words, the wireless communication device is configured to be not able to concurrently detect the third scheduling information and the scheduling information or second scheduling information.
  • the wireless communication device detects the piece of scheduling information in response to the wireless communication device being configured with group information. In one embodiment, if the wireless communication device is not configured with the group information, the wireless communication device may not detect or monitor the piece of scheduling information.
  • the group information may be configured in high layer signaling, e.g. RRC parameters. In another embodiment, the group information is a configuration to a group of wireless communication devices.
  • the wireless communication device detects the piece of scheduling information in response to the reception of information element including an indicator to enable or disable the piece of scheduling information.
  • the piece of scheduling information is a common DCI.
  • FIG. 5 relates to a schematic diagram of a wireless communication device 50 (e.g., a wireless terminal) according to an embodiment of the present disclosure.
  • the wireless communication device 50 may be a user equipment (UE) , a mobile phone, a laptop, a tablet computer, an electronic book or a portable computer system and is not limited herein.
  • the wireless communication device 50 may include a processor 500 such as a microprocessor or Application Specific Integrated Circuit (ASIC) , a storage unit 510 and a communication unit 520.
  • the storage unit 510 may be any data storage device that stores a program code 512, which is accessed and executed by the processor 500.
  • Embodiments of the storage unit 510 include but are not limited to a subscriber identity module (SIM) , read-only memory (ROM) , flash memory, random-access memory (RAM) , hard-disk, and optical data storage device.
  • SIM subscriber identity module
  • ROM read-only memory
  • RAM random-access memory
  • the communication unit 520 may a transceiver and is used to transmit and receive signals (e.g. messages or packets) according to processing results of the processor 500.
  • the communication unit 520 transmits and receives the signals via at least one antenna 522 shown in FIG. 8.
  • the storage unit 510 and the program code 512 may be omitted and the processor 500 may include a storage unit with stored program code.
  • the processor 500 may implement any one of the steps in exemplified embodiments on the wireless communication device 50, e.g., by executing the program code 512.
  • the communication unit 520 may be a transceiver.
  • the communication unit 520 may as an alternative or in addition be combining a transmitting unit and a receiving unit configured to transmit and to receive, respectively, signals to and from a network device.
  • the wireless communication device 50 can be used to perform the operations described above (e.g., operations in the method 300, and other relevant operations) .
  • the processor 500 and the communication unit 520 collaboratively perform the operations described above. For example, the processor 500 performs operations and transmit or receive signals through the communication unit 520.
  • the processor 500 is configured to detect a piece of scheduling information from a wireless communication node by the communication unit 520, in which the piece of scheduling information is used to schedule a plurality of wireless communication devices.
  • FIG. 6 relates to a schematic diagram of a wireless communication node 60 (e.g., a network device) according to an embodiment of the present disclosure.
  • the wireless communication node 60 may be a satellite, a base station (BS) , a network entity, a Mobility Management Entity (MME) , Serving Gateway (S-GW) , Packet Data Network (PDN) Gateway (P-GW) , a radio access network (RAN) , a next generation RAN (NG-RAN) , a data network, a core network or a Radio Network Controller (RNC) , and is not limited herein.
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • PDN Packet Data Network Gateway
  • RAN radio access network
  • NG-RAN next generation RAN
  • RNC Radio Network Controller
  • the wireless communication node 60 may include (perform) at least one network function such as an access and mobility management function (AMF) , a session management function (SMF) , a user place function (UPF) , a policy control function (PCF) , an application function (AF) , etc.
  • the wireless communication node 60 may include a processor 600 such as a microprocessor or ASIC, a storage unit 610 and a communication unit 620.
  • the storage unit 610 may be any data storage device that stores a program code 612, which is accessed and executed by the processor 600. Examples of the storage unit 610 include but are not limited to a SIM, ROM, flash memory, RAM, hard-disk, and optical data storage device.
  • the communication unit 620 may be a transceiver and is used to transmit and receive signals (e.g. messages or packets) according to processing results of the processor 600.
  • the communication unit 620 transmits and receives the signals via at least one antenna 622 shown in FIG. 9.
  • the communication unit 620 may also transmit and receive the signals via physical wires/cables.
  • the storage unit 610 and the program code 612 may be omitted.
  • the processor 600 may include a storage unit with stored program code.
  • the processor 600 may implement any steps described in exemplified embodiments on the wireless communication node 60, e.g., via executing the program code 612.
  • the communication unit 620 may be a transceiver.
  • the communication unit 620 may as an alternative or in addition be combining a transmitting unit and a receiving unit configured to transmit and to receive, respectively, signals to and from a communication device (e.g. a user equipment) .
  • a communication device e.g. a user equipment
  • the communication device 60 can be used to perform the operations described above (e.g., operations in the method 100, and other relevant operations) .
  • the processor 600 and the communication unit 620 collaboratively perform the operations described above. For example, the processor 600 performs operations and transmit or receive signals through the communication unit 620.
  • the processor 600 is configured to transmit a piece of scheduling information to a plurality of wireless communication devices by the communication unit 620, in which the piece of scheduling information is used to schedule the wireless communication devices.
  • Another aspect of the present disclosure relates to a computer program product including a computer-readable program medium code stored thereupon, the code, when executed by a processor, causing the processor to implement a wireless communication method recited in any of foregoing methods.
  • any reference to an element herein using a designation such as “first, “ “second, “ and so forth does not generally limit the quantity or order of those elements. Rather, these designations can be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, a reference to first and second elements does not mean that only two elements can be employed, or that the first element must precede the second element in some manner.
  • any of the various illustrative logical blocks, units, processors, means, circuits, methods and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., a digital implementation, an analog implementation, or a combination of the two) , firmware, various forms of program or design code incorporating instructions (which can be referred to herein, for convenience, as "software” or a “software unit” ) , or any combination of these techniques.
  • a processor, device, component, circuit, structure, machine, unit, etc. can be configured to perform one or more of the functions described herein.
  • IC integrated circuit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the logical blocks, units, and circuits can further include antennas and/or transceivers to communicate with various components within the network or within the device.
  • a general purpose processor can be a microprocessor, but in the alternative, the processor can be any conventional processor, controller, or state machine.
  • a processor can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other suitable configuration to perform the functions described herein. If implemented in software, the functions can be stored as one or more instructions or code on a computer-readable medium. Thus, the steps of a method or algorithm disclosed herein can be implemented as software stored on a computer-readable medium.
  • Computer-readable media includes both computer storage media and communication media including any medium that can be enabled to transfer a computer program or code from one place to another.
  • a storage media can be any available media that can be accessed by a computer.
  • such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • unit refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. Additionally, for purpose of discussion, the various units are described as discrete units; however, as would be apparent to one of ordinary skill in the art, two or more units may be combined to form a single unit that performs the associated functions according embodiments of the present disclosure.
  • memory or other storage may be employed in embodiments of the present disclosure.
  • memory or other storage may be employed in embodiments of the present disclosure.
  • any suitable distribution of functionality between different functional units, processing logic elements or domains may be used without detracting from the present disclosure.
  • functionality illustrated to be performed by separate processing logic elements, or controllers may be performed by the same processing logic element, or controller.
  • references to specific functional units are only references to a suitable means for providing the described functionality, rather than indicative of a strict logical or physical structure or organization.
  • the present disclosure relates to method, device, and computer program product for wireless communication, which can reduce the resource for transmitting transmission scheduling information, and avoid the congestion on the corresponding channel.

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

Abstract

La présente invention concerne un procédé, un dispositif et un produit programme d'ordinateur destinés à la communication sans fil. Un procédé consiste à : transmettre, par un nœud de communication sans fil, à une pluralité de dispositifs de communication sans fil, un élément d'informations de planification, l'élément d'informations de planification étant utilisé pour planifier les dispositifs de communication sans fil.
PCT/CN2020/107989 2020-08-07 2020-08-07 Procédé, dispositif et produit programme d'ordinateur pour la communication sans fil WO2022027671A1 (fr)

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