WO2021179998A1 - Procédé et appareil de détermination d'informations spatiales - Google Patents

Procédé et appareil de détermination d'informations spatiales Download PDF

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Publication number
WO2021179998A1
WO2021179998A1 PCT/CN2021/079241 CN2021079241W WO2021179998A1 WO 2021179998 A1 WO2021179998 A1 WO 2021179998A1 CN 2021079241 W CN2021079241 W CN 2021079241W WO 2021179998 A1 WO2021179998 A1 WO 2021179998A1
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Prior art keywords
reference signal
data channel
spatial information
judgment result
case
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PCT/CN2021/079241
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English (en)
Chinese (zh)
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王化磊
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北京紫光展锐通信技术有限公司
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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
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present invention relates to the field of wireless communication, in particular to a method and device for determining spatial information.
  • NR supports beam-based transmission to improve system performance; specifically, the beam is characterized by a reference signal corresponding to spatial information or a reference signal corresponding to QCL-TypeD in TCI.
  • the protocol stipulates that the space information of the PUSCH scheduled by DCI0_0 corresponds to the PUCCH resource with the smallest ID of the active BWP of the cell where the PUSCH is located. ⁇ spatial information.
  • the Rel-16 protocol further regulates the default space information of the PUSCH scheduled by DCI 0_0. Specifically, if the active BWP of the cell where the PUSCH is located is not configured with PUCCH resources, the terminal considers that the space information of the PUSCH will refer to the space information configured on the data channel.
  • the CORESET with the smallest ID on the carrier or carrier group or the relevant BWP or the CORESET with the smallest ID configured on the carrier or carrier group or the relevant BWP where the data channel is located and associated with the search space monitored by the most recent time slot The QCL-TypeD reference signal in QCL; if the active BWP of the cell where the PUSCH is located is configured with PUCCH resources and the configured PUCCH resources are not configured with spatial information, the terminal considers that the spatial information of the PUSCH will correspond to the PUCCH configured on the relevant BWP The default spatial information of the resource.
  • the consistency of the path loss reference signal and the reference signal representing the spatial information is not considered, so that the path loss reference signal is different from the reference signal representing the spatial information. Affected system performance.
  • the present disclosure proposes a method and device for determining spatial information.
  • the technical solution is as follows:
  • a method for determining spatial information including:
  • the spatial information of the data channel is determined according to the reference signal type related to the data channel or the TCI state parameter of the data channel.
  • the determining the spatial information of the data channel according to the reference signal type related to the data channel includes: determining the configuration state of the PUCCH resource of the relevant BWP of the data channel, where , The related BWP includes the active BWP of the cell, carrier, or carrier group to which the data channel belongs; in the case that PUCCH resources are not configured in the related BWP, according to the type of the first reference signal related to the data channel , Determine the spatial information of the data channel, wherein the first reference signal includes the QCL-TypeD reference signal included in the TCI state corresponding to the first CORESET, and the first CORESET includes that no PUCCH resource is configured in the relevant BWP In the case, the CORESET of the smallest ID configured on the carrier or carrier group where the data channel is located, or the relevant BWP or the CORESET configured on the carrier or carrier group where the data channel is located, or the relevant BWP and is more recent The CORESET with the smallest ID associated with the search space for slot monitoring
  • the determining the spatial information of the data channel according to the type of the first reference signal related to the data channel when the PUCCH resource is not configured in the relevant BWP includes: In the case that the relevant BWP is not configured with PUCCH resources, it is determined whether the type of the first reference signal is a downlink reference signal or a channel, and the first determination result is obtained; in the case that the first determination result is yes, the The first reference signal is used as the spatial information of the data channel; in a case where the first judgment result is no, the second reference signal is used as the spatial information of the data channel.
  • the data channel is determined according to the PUCCH resource.
  • Spatial information includes: when the relevant BWP is configured with PUCCH resources, and the PUCCH resource is not configured with spatial information or QCL-TypeD reference signals, determining the carrier or carrier group where the data channel is located or on the related BWP Whether to configure CORESET to obtain the second judgment result; if the second judgment result is yes, determine the space of the data channel according to the type of the third reference signal or the second reference signal related to the data channel Information, wherein the third reference signal includes the QCL-TypeD reference signal included in the TCI state corresponding to the second CORESET, and the second CORESET includes, in the case where the relevant BWP is configured with PUCCH resources, configured in the data CORESET of the smallest ID on the carrier or carrier group where the channel is located or the relevant BWP or the smallest
  • determining the spatial information of the data channel including: in a case where the second judgment result is yes, judging whether the type of the third reference signal is a downlink reference signal or channel, and obtaining a third judgment result; If the third judgment result is yes, use the third reference signal as the spatial information of the data channel; if the third judgment result is no, use the second reference signal as the data channel.
  • the spatial information of the data channel in the case where the second judgment result is yes, according to the type of the third reference signal related to the second CORESET or the second reference signal related to the data channel Signal, determining the spatial information of the data channel, including: in a case where the second judgment result is yes, judging whether the type of the third reference signal is a downlink reference signal or channel, and obtaining a third judgment result; If the third judgment result is yes, use the third reference signal as the spatial information of the data channel; if the third judgment result is no, use the second reference signal as the data channel.
  • the spatial information of the data channel in the case where the second judgment result is yes
  • the PUCCH resource is configured in the relevant BWP, and at least one of the PUCCH resources is configured with spatial information or QCL-TypeD reference signal, corresponding to the spatial information included in the PUCCH resource
  • the type of the reference signal or the QCL-TypeD reference signal is determined, and the spatial information of the data channel is determined, including: configuring PUCCH resources in the relevant BWP, and at least one of the PUCCH resources is configured with spatial information or QCL-TypeD reference signals
  • select the PUCCH resource with the smallest ID as the PUCCH resource to be determined select the PUCCH resource with the smallest ID as the PUCCH resource to be determined; determine the reference signal or QCL-TypeD corresponding to the spatial information included in the PUCCH resource to be determined Whether the type of the reference signal is a downlink reference signal or channel, the fourth judgment result is obtained; if the fourth judgment result is yes, the reference signal or QCL-TypeD corresponding to the spatial information included in the PUCCH resource to be
  • the relevant BWP is configured with PUCCH resources, and at least one PUCCH resource is configured with spatial information or a QCL-TypeD reference signal, Determine whether CORESET is configured on the carrier or carrier group or related BWP where the data channel is located, and obtain the fifth judgment result; if the fifth judgment result is yes, judge whether the type of the third reference signal is a downlink reference signal or channel, and obtain The sixth judgment result; when the sixth judgment result is yes, the third reference signal is used as the spatial information of the data channel; when the sixth judgment result is no, the second reference signal is used as the spatial information of the data channel ; In the case where the fifth judgment result is no, the second reference signal is used as the spatial information of the data channel.
  • an apparatus for determining spatial information including:
  • the obtaining module is used to obtain the downlink control information DCI used to schedule the data channel; the determining module is used to determine the DCI according to the reference signal type related to the data channel or the TCI state parameter of the data channel according to the DCI.
  • the spatial information of the data channel is used to obtain the downlink control information DCI used to schedule the data channel; the determining module is used to determine the DCI according to the reference signal type related to the data channel or the TCI state parameter of the data channel according to the DCI.
  • the spatial information of the data channel is used to obtain the downlink control information DCI used to schedule the data channel.
  • the determining module is configured to determine the PUCCH resource configuration status of the relevant BWP of the data channel, where the relevant BWP includes the cell to which the data channel belongs, the carrier to which the data channel belongs, or the carrier to which the data channel belongs.
  • the active BWP of the group in the case that the relevant BWP is not configured with PUCCH resources, the spatial information of the data channel is determined according to the type of the first reference signal related to the data channel, wherein the first reference signal It includes the QCL-TypeD reference signal included in the TCI state corresponding to the first CORESET, where the first CORESET includes, in the case that the relevant BWP is not configured with PUCCH resources, configured in the carrier or carrier group or all of the data channels where the data channel is located.
  • the spatial information of the data channel is determined according to the PUCCH resources; or, the PUCCH resources are configured in the relevant BWP,
  • the spatial information of the data channel is determined according to the type of the reference signal or QCL-TypeD reference signal corresponding to the spatial information included in the PUCCH resource .
  • the determining module is further configured to: in the case that the relevant BWP is not configured with PUCCH resources, determine whether the type of the first reference signal is a downlink reference signal or channel, and obtain the first reference signal or channel. Judgment result; in the case where the first judgment result is yes, use the first reference signal as the spatial information of the data channel; in the case where the first judgment result is no, use the second reference signal As the spatial information of the data channel.
  • the determining module is further configured to: determine the data channel when the PUCCH resource is configured in the relevant BWP, and the PUCCH resource is not configured with spatial information or QCL-TypeD reference signal Whether CORESET is configured on the carrier or carrier group or the related BWP, the second judgment result is obtained; in the case that the second judgment result is yes, according to the type of the third reference signal or the data channel related
  • the second reference signal determines the spatial information of the data channel, where the third reference signal includes the QCL-TypeD reference signal included in the TCI state corresponding to the second CORESET, and the second CORESET includes, in the related BWP
  • the determining module is further configured to: in a case where the second determination result is yes, determine whether the type of the third reference signal is a downlink reference signal or a channel, and obtain the third Judgment result; if the third judgment result is yes, use the third reference signal as the spatial information of the data channel; if the third judgment result is no, set the second The reference signal is used as the spatial information of the data channel.
  • the determining module is further configured to: when the relevant BWP configures PUCCH resources, and at least one of the PUCCH resources is configured with spatial information or QCL-TypeD reference signals, from the configuration spatial information Or among the PUCCH resources of the QCL-TypeD reference signal, the PUCCH resource with the smallest ID is selected as the PUCCH resource to be judged; it is judged whether the type of the reference signal or the QCL-TypeD reference signal corresponding to the spatial information included in the PUCCH resource to be judged is Downlink reference signal or channel, obtain the fourth judgment result; in the case that the fourth judgment result is yes, use the reference signal or QCL-TypeD reference signal corresponding to the spatial information included in the PUCCH resource to be judged as the Spatial information of the data channel; in a case where the fourth judgment result is no, use the second or third reference signal as the spatial information of the data channel.
  • the determining module is further configured to configure PUCCH resources in the relevant BWP, and at least one PUCCH resource is configured with space information or QCL-TypeD reference if the fourth judgment result is no.
  • determine whether CORESET is configured on the carrier or carrier group or related BWP where the data channel is located, and obtain the fifth determination result; in the case of the fifth determination result as yes, determine whether the type of the third reference signal is a downlink reference Signal or channel, the sixth judgment result is obtained; if the sixth judgment result is yes, the third reference signal is used as the spatial information of the data channel; if the sixth judgment result is no, the first The second reference signal is used as the spatial information of the data channel; in a case where the fifth judgment result is no, the second reference signal is used as the spatial information of the data channel.
  • an apparatus for determining spatial information including: a processor; a memory for storing executable instructions of the processor; wherein the processor is configured to execute the method of the above-mentioned first aspect .
  • a non-volatile computer-readable storage medium having computer program instructions stored thereon, and when the computer program instructions are executed by a processor, the method of the first aspect described above is implemented.
  • the path reference signal of the data channel is determined according to the reference signal type related to the data channel or the TCI state parameter of the data channel, according to each of the disclosures.
  • the method and device for determining spatial information in the embodiments of the aspect can be used when the current spatial information determination method cannot be applied due to the change of the reference signal type related to the data channel, or the current parameter used to determine the spatial information is replaced Next, still ensure that the spatial information can be determined normally.
  • Fig. 1 shows a flowchart of a method for determining spatial information according to an embodiment of the present disclosure.
  • Fig. 2 shows a block diagram of an apparatus for determining spatial information according to an embodiment of the present disclosure.
  • Fig. 3 shows a block diagram of an apparatus for determining spatial information according to an embodiment of the present disclosure.
  • the spatial information (spatial information or spatial relation) of the data channel is of great significance.
  • the physical uplink shared channel (PUSCH, Physical Uplink Shared Channel) related to the terminal device can be scheduled through downlink control information (DCI, Downlink Control Information), According to the DCI, it is determined that the spatial information of the PUSCH will also change flexibly.
  • DCI Downlink Control Information
  • spatial information (spatial information or spatial relation) is defined by QCL-TypeD (Quasico-location TypeD, QCL- for short) in the state of reference signals or TCI (Transmission Configuration Indicator).
  • TypeD corresponding to the reference signal for characterization.
  • QCL-TypeD Quadasico-location TypeD, QCL- for short
  • TCI Transmission Configuration Indicator
  • TypeD corresponding to the reference signal for characterization.
  • the spatial information of PUSCH can be flexible according to the QCL-TypeD reference signal or spatial information included in the transmission configuration indicator (TCI, Transmission Configuration Indicator) state related to PUSCH Determined; in the case that the format of the DCI is DCI 0_1, the spatial information of the PUSCH can be flexibly determined according to the value of the channel sounding reference signal resource indicator (SRI, SRS Resource Indicator) field or the TCI field included in the DCI.
  • TCI Transmission Configuration Indicator
  • the QCL-TypeD reference signal included in the TCI state related to PUSCH is currently a downlink reference signal.
  • the QCL-TypeD reference signal included in the TCI state may be a downlink reference signal. , It can also be an uplink reference signal or channel.
  • this QCL-TypeD reference signal is an uplink reference signal or channel, it cannot be used as the path loss reference signal of the PUSCH. If it is still used as spatial information, it will cause The path loss reference signal is inconsistent with the reference signal representing the spatial information, which affects the system performance. Therefore, it cannot be used as the spatial information of the PUSCH, that is, the spatial information of the PUSCH cannot be determined by the current method.
  • this embodiment discloses an application example of a method for determining spatial information.
  • Fig. 1 shows a flowchart of a method for determining spatial information according to an embodiment of the present disclosure.
  • the method can be applied to user equipment (UE, User Equipment), where the UE can be a mobile phone, a tablet computer, a notebook computer, a handheld computer, Mobile Internet devices (MID, mobile Internet devices), wearable devices, virtual reality (VR, virtual reality) devices, augmented reality (AR, augmented reality) devices, wireless terminals in industrial control, wireless terminals in unmanned driving, remote surgery
  • the wireless terminal in the smart grid, the wireless terminal in the smart grid, the transportation safety (the wireless terminal in the smart city, the wireless terminal in the smart city, the wireless terminal in the smart home, the wireless terminal in the Internet of Vehicles, etc., are not done in this embodiment Specific limitations.
  • the method may include:
  • Step S11 Obtain downlink control information DCI for scheduling the data channel.
  • Step S12 According to the DCI, the spatial information of the data channel is determined according to the reference signal type related to the data channel or the TCI state parameter of the data channel.
  • the method can be implemented in the form of a software program that runs on a processor integrated inside a chip or a chip module.
  • the DCI format may be DCI 0_0, and the data channel scheduled by DCI may be PUSCH.
  • the spatial information of the data channel is determined according to the reference signal type related to the data channel or the TCI state parameter of the data channel, according to various aspects of the embodiments of the present disclosure.
  • the method and device for determining spatial information can still ensure that the spatial information can be determined normally when the current spatial information determination method cannot be applied due to the change of the reference signal type related to the data channel.
  • the method proposed in the embodiments of the present disclosure can flexibly change the determination method of spatial information according to the change of the reference signal type related to the data channel when the DCI format is DCI 0_0, so as to ensure the process of determining the spatial information as much as possible. Normally achieved.
  • the DCI 0_0 described in this article is a corresponding parameter used to schedule PUSCH in a possible implementation.
  • the name of the parameter for scheduling PUSCH changes, it can also be flexibly selected according to the actual situation, and the above disclosure can be modified accordingly.
  • the judgment conditions for determining the spatial information of the data channel in the embodiments are not limited to the following disclosed embodiments.
  • step S12 Can include:
  • Step S121 Determine the PUCCH resource configuration status of the relevant BWP of the data channel, where the relevant BWP includes the active BWP of the cell to which the data channel belongs, the carrier to which it belongs, or the carrier group to which it belongs.
  • Step S122 When the relevant BWP is not configured with PUCCH resources, determine the spatial information of the data channel according to the type of the first reference signal related to the data channel, where the first reference signal includes the TCI state corresponding to the first CORESET.
  • the first CORESET includes, when the relevant BWP is not configured with PUCCH resources, the CORESET with the smallest ID or the smallest ID configured on the carrier or carrier group where the data channel is located or the relevant BWP is configured in the relevant BWP.
  • Step S123 When the PUCCH resource is configured in the relevant BWP, and the PUCCH resource is not configured with spatial information or QCL-TypeD reference signal, the spatial information of the data channel is determined according to the PUCCH resource. or,
  • Step S124 in the case where the relevant BWP is configured with PUCCH resources and at least one PUCCH resource is configured with spatial information or QCL-TypeD reference signal, determine the data according to the type of the reference signal corresponding to the spatial information included in the PUCCH resource or the QCL-TypeD reference signal Spatial information of the channel.
  • the relevant part of the working bandwidth (BWP, Bandwidth part) of the data channel can be the active BWP of the cell where the data channel is located, or the active BWP of the carrier where the data channel is located, or the active BWP of the carrier group where the data channel is located.
  • the BWP may be configured with physical uplink control channel (PUCCH, Physical Uplink Control Channel) resources, or may not be configured with PUCCH resources. Therefore, as the PUCCH resource configuration on the relevant BWP is different, it can be configured according to steps S122 and S122, respectively.
  • S123 and S124 are used to flexibly determine the spatial information, so that no matter how the resources on the relevant BWP are configured, the normal realization of the spatial information determination process is ensured as much as possible.
  • the spatial information can be flexibly determined according to the type of the first reference signal.
  • the relevant carrier or In the resource control set (CORESET, Control resource set) configured on the BWP the CORESET with the smallest ID is selected as the first CORESET, and the QCL-TypeD reference signal included in the TCI state corresponding to this first CORESET is used as the first CORESET.
  • CORESET Control resource set
  • the relevant BWP when the relevant BWP is not configured with PUCCH resources, from the CORESET configured on the relevant BWP or carrier, select the search space associated with the latest slot monitoring CORESET (the CORESET associated with a monitored search space with the lowest CORESET-ID in the latest slot in which one or more CORESETs within the active BWP of the serving cell(s) or the serving cell) are monitored by the UE) as the first CORESET, and the QCL-TypeD reference signal included in the TCI state corresponding to this first CORESET is used as the first reference signal.
  • the search space associated with the latest slot monitoring CORESET the CORESET associated with a monitored search space with the lowest CORESET-ID in the latest slot in which one or more CORESETs within the active BWP of the serving cell(s) or the serving cell
  • the QCL-TypeD reference signal included in the TCI state corresponding to this first CORESET is used as the first reference signal.
  • the nearest time slot may be the time slot closest to the receiving time slot of the current data channel and the monitored search space is associated with CORESET.
  • the time slot receiving the current data channel PUSCH may be Denoted as N, before time slot N and time slot N, if the search space monitored by time slot N-1 is associated with CORESET, time slot N-1 can be regarded as the nearest time slot, if time slot N-1 does not need to be monitored If the PDCCH is selected, it is judged whether the search space monitored by the N-2 time slot is associated with CORESET, and so on, so that the nearest time slot can be determined.
  • three CORESETs can be configured on the relevant BWP, and the IDs of the three CORESETs are 3, 4, and 5 respectively.
  • the CORESET with ID 4 is associated with the search space monitored by the most recent time slot, then According to the above disclosed embodiments, the CORESET with the smallest ID, that is, the CORESET with ID 3 can be used as the first CORESET, or the CORESET with ID 4 can be used as the first CORESET, and when the CORESET with ID 3 is used as the first CORESET ,
  • the first reference signal is the QCL-TypeD reference signal included in the TCI state corresponding to CORESET with ID 3, and when CORESET with ID 4 is used as the first CORESET, the first reference signal is the one corresponding to CORESET with ID 4 QCL-TypeD reference signal included in the TCI state.
  • step S122 may include:
  • Step S1221 In the case where the PUCCH resource is not configured in the relevant BWP, determine whether the type of the first reference signal is a downlink reference signal or a channel, and obtain a first determination result.
  • Step S1222 in a case where the first judgment result is yes, use the first reference signal as the spatial information of the data channel.
  • Step S1223 In a case where the first judgment result is no, use the second reference signal as the spatial information of the data channel.
  • the first reference signal when the first reference signal is a downlink reference signal or a channel, the first reference signal can be directly used as the spatial information of the data channel.
  • the spatial information at this time may be a periodic reference signal.
  • the first reference signal is not a downlink reference signal or channel
  • the first reference signal is an uplink reference signal
  • the spatial information is determined as the first reference signal, the system performance will be affected.
  • the second reference signal may be further used as the spatial information of the data channel.
  • the second reference signal is a reference signal related to the data channel, and its specific implementation can be referred to the subsequent disclosed embodiments, which will not be expanded here.
  • the spatial information can be flexibly obtained from the reference signal related to the data channel, and the normal realization of the spatial information determination process can be ensured.
  • step S123 when the relevant BWP is configured with PUCCH resources, but there is no PUCCH resource configuration space information or QCL-TypeD reference signal, because the PUCCH resources are not configured with space information or The QCL-TypeD reference signal, therefore, the reference signal corresponding to the spatial information or the QCL-TypeD reference signal cannot be directly obtained from the PUCCH resource as the spatial information. Therefore, the spatial information of the data channel can be flexibly determined according to the PUCCH resource at this time.
  • step S123 may include:
  • Step S1231 When the relevant BWP is configured with PUCCH resources, and the PUCCH resources are not configured with spatial information or QCL-TypeD reference signals, it is judged whether the carrier or carrier group where the data channel is located or the relevant BWP is configured with CORESET, and the second judgment result is obtained.
  • Step S1232 in the case that the second judgment result is yes, determine the spatial information of the data channel according to the type of the third reference signal or the second reference signal related to the data channel, where the third reference signal includes the second CORESET
  • the corresponding TCI state includes the QCL-TypeD reference signal.
  • the second CORESET includes the CORESET with the smallest ID configured on the carrier or carrier group where the data channel is located, or on the data channel when the relevant BWP is configured with PUCCH resources.
  • the second reference signal includes the QCL-TypeD reference signal included in the active TCI state with the smallest ID related to the data channel.
  • Step S1233 In a case where the second judgment result is no, determine the spatial information of the data channel according to the type of the second reference signal related to the data channel.
  • each PUCCH resource is not configured with spatial information or QCL-TypeD reference signals
  • it can be first determined whether the data channel is located on the carrier or carrier group or on the relevant BWP.
  • CORESET is configured, and then according to the different configuration of CORESET on the carrier or carrier group or related BWP where the data channel is located, the corresponding method can be flexibly selected to determine the spatial information of the data channel.
  • the "second" and “first” in the second CORESET and the first CORESET are only used to distinguish the CORESET with the smallest ID of the carrier or carrier group where the data channel is located under different PUCCH resource configurations.
  • the CORESET with the smallest ID associated with the search space monitored by the latest time slot instead of limiting the implementation of the two CORESETs, that is, the specific configuration of the first CORESET and the second CORESET can be the same or different. There is no limitation in the disclosed embodiments.
  • the spatial information of the data channel can be determined according to the third reference signal or the second reference signal, where the determination process of the third reference signal can be : From the CORESET configured on the carrier or carrier group or related BWP where the data channel is located, the selected CORESET with the smallest ID or the CORESET with the smallest ID associated with the search space of the latest time slot monitoring will correspond to this second CORESET
  • the QCL-TypeD reference signal included in the TCI state is used as the third reference signal.
  • the determination process of the second reference signal can be: from the active TCI states related to the data channel, select the active TCI state with the smallest ID, and then use the QCL-TypeD reference signal included in the selected active TCI state, Come as the second reference signal.
  • step S1232 may include:
  • Step S12321 In a case where the second judgment result is yes, judge whether the type of the third reference signal is a downlink reference signal or a channel, and obtain a third judgment result.
  • Step S12322 in a case where the third judgment result is yes, use the third reference signal as the spatial information of the data channel.
  • Step S12323 in a case where the third judgment result is no, use the second reference signal as the spatial information of the data channel.
  • the spatial information of the data channel can be determined first according to the type of the third reference signal, that is, if the third reference signal is a downlink reference signal or channel,
  • the third reference signal can be directly used as the spatial information of the data channel, and if the third reference signal is a non-downlink reference signal or a channel, such as an uplink reference signal, in a possible implementation manner, the first
  • the second reference signal is used as the spatial information of the data channel.
  • the relevant BWP is configured with PUCCH resources, and each PUCCH resource is not configured with spatial information or QCL-TypeD reference signal, but the carrier or carrier group where the data channel is located or the relevant BWP is configured with CORESET
  • the process of determining the spatial information of the data channel according to the third reference signal type or the second reference signal may be:
  • the third reference signal is a downlink reference signal or channel
  • the third reference signal is used as the spatial information of the data channel.
  • the spatial information at this time may be a periodic reference signal; or,
  • the second reference signal is used as the spatial information of the data channel.
  • the spatial information at this time may be a periodic reference signal.
  • the relevant BWP or carrier is configured with PUCCH resources, and each PUCCH resource is not configured with spatial information or QCL-TypeD reference signal, but the carrier or carrier group where the data channel is located or the relevant BWP is configured with CORESET, according to the third reference signal Or the second reference signal is used to flexibly determine the spatial information of the data channel, which can improve the flexibility of the spatial information determination process, and can further ensure the complete realization of the spatial information determination process.
  • each PUCCH resource is not configured with spatial information or QCL-TypeD reference signal, and the carrier or carrier group where the data channel is located, or the relevant BWP is not configured with CORESET, the second reference signal
  • the second reference signal In the case of a downlink reference signal or channel, the second reference signal is directly used as the spatial information of the data channel.
  • the spatial information at this time may be a periodic reference signal.
  • step S124 when the relevant BWP is configured with PUCCH resources, and there is at least one PUCCH resource configured with spatial information or QCL-TypeD reference signals, it can be directly based on the spatial information included in the PUCCH resource
  • the type of the corresponding reference signal or QCL-TypeD reference signal is used to determine the spatial information of the data channel.
  • step S124 may include:
  • Step S1241 in the case where the relevant BWP is configured with PUCCH resources, and at least one PUCCH resource is configured with space information or QCL-TypeD reference signal, select the PUCCH resource with the smallest ID from the PUCCH resources of the configuration space information or QCL-TypeD reference signal , As the PUCCH resource to be judged.
  • Step S1242 It is judged whether the type of the reference signal or the QCL-TypeD reference signal corresponding to the spatial information included in the PUCCH resource to be judged is a downlink reference signal or a channel, and a fourth judgment result is obtained.
  • Step S1243 in a case where the fourth judgment result is yes, use the reference signal or QCL-TypeD reference signal corresponding to the spatial information included in the PUCCH resource to be judged as the spatial information of the data channel;
  • Step S1244 in a case where the fourth judgment result is no, use the third reference signal or the second reference signal as the spatial information of the data channel.
  • step S1244 may include:
  • Step S1441 When the relevant BWP is configured with PUCCH resources and at least one PUCCH resource is configured with space information or QCL-TypeD reference signal, it is judged whether CORESET is configured on the carrier or carrier group where the data channel is located or the relevant BWP, and a fifth judgment result is obtained.
  • Step S12442 in a case where the fifth judgment result is yes, judge whether the type of the third reference signal is a downlink reference signal or a channel, and obtain a sixth judgment result.
  • Step S124421 in a case where the sixth judgment result is yes, use the third reference signal as the spatial information of the data channel.
  • Step S124422 In a case where the sixth judgment result is no, use the second reference signal as the spatial information of the data channel.
  • Step S1243 in a case where the fifth judgment result is no, use the second reference signal as the spatial information of the data channel.
  • the PUCCH resource with the smallest ID is selected as the PUCCH resource to be judged. In this way, the reference signal or reference signal corresponding to the spatial information included in the PUCCH resource to be judged can be directly selected.
  • the reference signal or QCL-TypeD reference signal corresponding to the spatial information is used as the spatial information of the data channel; otherwise, the second reference signal mentioned in the above disclosed embodiment
  • the third reference signal or the second reference signal is used as the spatial information of the data channel and used as the spatial information.
  • DCI0_0 when the DCI format is DCI0_0, the various spatial information determination methods that are implemented with different judgment conditions can be flexibly combined according to the actual situation. There is no limitation in the disclosed embodiments.
  • the above disclosed embodiments show how to determine the spatial information of the data channel according to the reference signal type related to the data channel when the format of the DCI is DCI 0_0.
  • Fig. 2 shows a block diagram of an apparatus for determining spatial information according to an embodiment of the present disclosure.
  • the apparatus 20 includes:
  • the obtaining module 21 is configured to obtain downlink control information DCI for scheduling data channels;
  • the determining module 22 is configured to determine the spatial information of the data channel according to the DCI, the reference signal type related to the data channel or the TCI state parameter of the data channel.
  • the determining module 22 is configured to determine the PUCCH resource configuration status of the relevant BWP of the data channel, where the relevant BWP includes the active BWP of the cell to which the data channel belongs, the carrier to which the data channel belongs, or the carrier group to which it belongs;
  • the spatial information of the data channel is determined according to the type of the first reference signal related to the data channel, where the first reference signal includes the QCL-TypeD included in the TCI state corresponding to the first CORESET
  • the first CORESET includes, when the relevant BWP is not configured with PUCCH resources, the CORESET with the smallest ID configured on the carrier or carrier group or the related BWP where the data channel is located or configured on the carrier or carrier group or the related BWP where the data channel is located The CORESET with the smallest ID associated with the search space monitored by the most recent time slot; or, when the PUCCH resource is configured in the relevant BWP,
  • the determining module 22 is further configured to determine whether the type of the first reference signal is a downlink reference signal or channel when the PUCCH resource is not configured in the relevant BWP, to obtain the first determination result; In a case where the judgment result is yes, the first reference signal is used as the spatial information of the data channel; in the case where the first judgment result is no, the second reference signal is used as the spatial information of the data channel.
  • the determining module 22 is further configured to: when the PUCCH resource is configured in the relevant BWP, and the PUCCH resource is not configured with spatial information or QCL-TypeD reference signal, determine the carrier or carrier group or related information of the data channel.
  • the second judgment result is yes, the spatial information of the data channel is determined according to the type of the third reference signal or the second reference signal related to the data channel, where,
  • the third reference signal includes the QCL-TypeD reference signal included in the TCI state corresponding to the second CORESET, and the second CORESET includes, in the case that the relevant BWP is configured with PUCCH resources, the minimum value configured on the carrier or carrier group where the data channel is located or the relevant BWP
  • the second reference signal includes the active TCI state of the smallest ID associated with the data channel.
  • QCL-TypeD reference signal if the second judgment result is no, the second reference signal is used as the spatial information of the data channel.
  • the determining module 22 is further configured to: when the second judgment result is yes, judge whether the type of the third reference signal is a downlink reference signal or channel, and obtain the third judgment result; When the third judgment result is yes, the third reference signal is used as the spatial information of the data channel; when the third judgment result is no, the second reference signal is used as the spatial information of the data channel.
  • the determining module 22 is further configured to: when the relevant BWP configures PUCCH resources and at least one PUCCH resource is configured with spatial information or QCL-TypeD reference signals, refer to the configuration spatial information or QCL-TypeD Among the PUCCH resources of the signal, select the PUCCH resource with the smallest ID as the PUCCH resource to be determined; determine whether the reference signal or the type of the QCL-TypeD reference signal corresponding to the spatial information included in the PUCCH resource to be determined is a downlink reference signal or channel, and obtain The fourth judgment result; in the case that the fourth judgment result is yes, the reference signal or QCL-TypeD reference signal corresponding to the spatial information included in the PUCCH resource to be judged is used as the spatial information of the data channel; the fourth judgment result is no In the case of using the second or third reference signal as the spatial information of the data channel.
  • the determining module 22 is further configured to: if the fourth judgment result is no, configure PUCCH resources in the relevant BWP, and at least one PUCCH resource is configured with spatial information or QCL-TypeD reference signals In the case of, it is judged whether CORESET is configured on the carrier or carrier group or related BWP where the data channel is located, and the fifth judgment result is obtained; when the fifth judgment result is yes, it is judged whether the type of the third reference signal is a downlink reference signal Or channel, the sixth judgment result is obtained; in the case that the sixth judgment result is yes, the third reference signal is used as the spatial information of the data channel; in the case where the sixth judgment result is no, the second reference signal is used as the data Spatial information of the channel; in the case where the fifth judgment result is no, the second reference signal is used as the spatial information of the data channel.
  • Fig. 3 is a block diagram showing an apparatus 1300 for spatial information according to an exemplary embodiment.
  • the device 1300 may be provided as a server.
  • the apparatus 1300 includes a processing component 1322, which further includes one or more processors, and a memory resource represented by a memory 1332, for storing instructions executable by the processing component 1322, such as application programs.
  • the application program stored in the memory 1332 may include one or more modules each corresponding to a set of instructions.
  • the processing component 1322 is configured to execute instructions to perform the above-mentioned method.
  • the device 1300 may also include a power supply component 1326 configured to perform power management of the device 1300, a wired or wireless network interface 1350 configured to connect the device 1300 to a network, and an input output (I/O) interface 1358.
  • the device 1300 can operate based on an operating system stored in the storage 1332, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
  • a non-volatile computer-readable storage medium such as the memory 1332 including computer program instructions, which can be executed by the processing component 1322 of the device 1300 to complete the foregoing method.
  • the foregoing device may correspond to a chip with data processing function in user equipment, such as a baseband chip; or a chip module including a chip with data processing function in user equipment, or a user equipment.
  • modules/units contained in the various devices and products described in the above embodiments they may be software modules/units, hardware modules/units, or part software modules/units and part hardware modules/units.
  • the various modules/units contained therein can be implemented in the form of hardware such as circuits, or at least part of the modules/units can be implemented in the form of software programs. Runs on the integrated processor inside the chip, and the remaining (if any) part of the modules/units can be implemented by hardware methods such as circuits; for each device and product applied to or integrated in the chip module, the modules/units contained therein can be All are implemented by hardware such as circuits.
  • Different modules/units can be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least part of the modules/units can be implemented by software programs.
  • the software program runs on the processor integrated inside the chip module, and the remaining (if any) part of the modules/units can be implemented in hardware methods such as circuits; for each device and product that is applied to or integrated in the terminal, the modules contained therein All modules/units can be implemented by hardware such as circuits, and different modules/units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or at least part of the modules/units can be implemented in the form of software programs Implementation, the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules/units can be implemented in hardware such as circuits.
  • the present disclosure may be a system, method and/or computer program product.
  • the computer program product may include a computer-readable storage medium loaded with computer-readable program instructions for enabling a processor to implement various aspects of the present disclosure.
  • the computer-readable storage medium may be a tangible device that can hold and store instructions used by the instruction execution device.
  • the computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing.
  • Non-exhaustive list of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM) Or flash memory), static random access memory (SRAM), portable compact disk read-only memory (CD-ROM), digital versatile disk (DVD), memory stick, floppy disk, mechanical encoding device, such as a printer with instructions stored thereon
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable read-only memory
  • flash memory flash memory
  • SRAM static random access memory
  • CD-ROM compact disk read-only memory
  • DVD digital versatile disk
  • memory stick floppy disk
  • mechanical encoding device such as a printer with instructions stored thereon
  • the computer-readable storage medium used here is not interpreted as the instantaneous signal itself, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (for example, light pulses through fiber optic cables), or through wires Transmission of electrical signals.
  • the computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to various computing/processing devices, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and/or a wireless network.
  • the network may include copper transmission cables, optical fiber transmission, wireless transmission, routers, firewalls, switches, gateway computers, and/or edge servers.
  • the network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network, and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing/processing device .
  • the computer program instructions used to perform the operations of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or in one or more programming languages.
  • Source code or object code written in any combination, the programming language includes object-oriented programming languages such as Smalltalk, C++, etc., and conventional procedural programming languages such as "C" language or similar programming languages.
  • Computer-readable program instructions can be executed entirely on the user's computer, partly on the user's computer, executed as a stand-alone software package, partly on the user's computer and partly executed on a remote computer, or entirely on the remote computer or server implement.
  • the remote computer can be connected to the user's computer through any kind of network-including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (for example, using an Internet service provider to connect to the user's computer) connect).
  • LAN local area network
  • WAN wide area network
  • an electronic circuit such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), can be customized by using the status information of the computer-readable program instructions.
  • the computer-readable program instructions are executed to realize various aspects of the present disclosure.
  • These computer-readable program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine that makes these instructions when executed by the processor of the computer or other programmable data processing device , A device that implements the functions/actions specified in one or more blocks in the flowcharts and/or block diagrams is produced. It is also possible to store these computer-readable program instructions in a computer-readable storage medium. These instructions make computers, programmable data processing apparatuses, and/or other devices work in a specific manner. Thus, the computer-readable medium storing the instructions includes An article of manufacture, which includes instructions for implementing various aspects of the functions/actions specified in one or more blocks in the flowcharts and/or block diagrams.
  • each block in the flowchart or block diagram may represent a module, program segment, or part of an instruction, and the module, program segment, or part of an instruction contains one or more components for realizing the specified logical function.
  • Executable instructions may also occur in a different order from the order marked in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, or they can sometimes be executed in the reverse order, depending on the functions involved.
  • each block in the block diagram and/or flowchart, and the combination of the blocks in the block diagram and/or flowchart can be implemented by a dedicated hardware-based system that performs the specified functions or actions Or it can be realized by a combination of dedicated hardware and computer instructions.

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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 et un appareil de détermination d'informations spatiales, le procédé consistant à : acquérir des informations de commande de liaison descendante (DCI) utilisées pour planifier un canal de données ; et déterminer des informations spatiales du canal de données selon les DCI, et un type de signal de référence associé au canal de données ou à un paramètre d'état TCI du canal de données. Selon le procédé et l'appareil de détermination d'informations spatiales dans les modes de réalisation selon divers aspects de la présente invention, il peut encore être garanti que des informations spatiales peuvent être normalement déterminées lorsqu'un changement d'un type de signal de référence associé à un canal de données se traduit par le fait qu'il n'est pas possible d'appliquer les moyens de détermination d'informations spatiales actuels.
PCT/CN2021/079241 2020-03-13 2021-03-05 Procédé et appareil de détermination d'informations spatiales WO2021179998A1 (fr)

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