WO2022206533A1 - 波束失败恢复方法和装置 - Google Patents
波束失败恢复方法和装置 Download PDFInfo
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- WO2022206533A1 WO2022206533A1 PCT/CN2022/082687 CN2022082687W WO2022206533A1 WO 2022206533 A1 WO2022206533 A1 WO 2022206533A1 CN 2022082687 W CN2022082687 W CN 2022082687W WO 2022206533 A1 WO2022206533 A1 WO 2022206533A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
- H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
- H04B7/06964—Re-selection of one or more beams after beam failure
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- H—ELECTRICITY
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- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
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- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
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- H04W76/19—Connection re-establishment
Definitions
- the present application relates to the field of communication technologies, and more particularly, to a beam failure recovery method and apparatus.
- the 5th generation (5G) mobile communication system adopts high-frequency communication based on analog beams.
- the signal coverage of the analog beams is narrow, and it is easy to be blocked by obstacles and beam failures occur.
- a beam failure recovery (BFR) process is proposed.
- the process includes: the network device configures the terminal device with a set of beam failure detection Beam failure detection resources and a set of candidate beam resources used to determine candidate beams for the current beam. When the terminal device detects that the quality of each resource in the set of beam failure detection resources is lower than the threshold 1, it determines that a beam failure has occurred.
- the terminal device may determine a candidate beam to perform beam failure recovery, and the candidate beam is a set of candidate beam resources with a quality higher than threshold 2.
- the terminal device needs to perform beam failure detection and recovery for each TRP in the one cell.
- TRPs transmission reception points
- the terminal device determines that a beam failure has occurred and performs beam failure recovery only when the quality of all beam failure detection resources configured by the network device is lower than the threshold 1, resulting in The terminal equipment cannot perform beam failure recovery in time.
- the present application provides a beam failure recovery method, which can recover the beam failure in time.
- a beam failure recovery method including:
- the terminal device receives configuration information of the cell, where the configuration information of the cell includes M beam failure detection resource groups and M candidate beam resource groups, and the M beam failure detection resource groups correspond to the M candidate beam resource groups one-to-one , M is an integer;
- the terminal device When M is an integer greater than 1, and a beam failure occurs in at least one beam failure detection resource group in the M beam failure detection resource groups, the terminal device sends the beam failure of the cell through the first medium access control element MAC CE restore information.
- the device may be the above-mentioned terminal equipment, or may be a chip or a functional module therein, including:
- a receiving unit configured to receive configuration information of a cell, where the configuration information of the cell includes M beam failure detection resource groups and M candidate beam resource groups, the M beam failure detection resource groups and the M candidate beam resource groups Beam resource groups are in one-to-one correspondence, and M is an integer;
- a sending unit configured to send the described message through the first medium access control element (MAC CE) when M is an integer greater than 1 and at least one beam failure detection resource group in the M beam failure detection resource groups has a beam failure
- the beam failure recovery information corresponding to the cell.
- the M beam failure detection resource groups and the M candidate beam resource groups included in the configuration information of the cell are information configured by the network device to the terminal device. It can be understood that when M is equal to 1, the above M beam failure detection resource groups and the above M candidate beam resource groups are configured by one network device. At this time, the above cell can be understood as a single TRP cell. When M is an integer greater than 1, the M number of beam failure detection resource groups and the M number of candidate beam resource groups are configured by M network devices. In this case, the above cell can be understood as a multi-TRP cell.
- the above-mentioned cell is a multi-TRP cell (that is, M is an integer greater than 1)
- the downlink signals in the above-mentioned cell are simultaneously sent to the terminal equipment through multiple TRPs, and at this time, the multiple TRPs may be used.
- the multiple TRPs can be regarded as one network device at the same time, or the multiple TRPs can be regarded as multiple transmitters of the entire network device.
- “multiple TRPs are used” “multiple beam failure detection resource groups are configured”, “multiple alternative beam resource groups are configured”, and "these descriptions are equivalent to each other. In the case of not emphasizing the difference, the meanings of these descriptions are the same.
- the configuration information of the cell may further include a scheduling request (scheduling requirement, SR) resource.
- SR scheduling request
- the network device configures multiple cells for a terminal device, and at least one of the multiple cells is a multi-TRP cell, the network device needs to configure multiple SR resources for the terminal device, and the multiple SR resources One-to-one correspondence with multiple TRPs, or the network device configures one SR resource, but the one SR resource has multiple spatial relation (spatial relation) parameters (ie, uplink transmit beams).
- spatial relation spatial relation
- the network device only needs to configure one SR resource, and the one SR resource has only a single spatial relation parameter.
- the configuration information received by the above-mentioned terminal equipment not only includes the configuration information of the above-mentioned cells, but also includes the removal of the cells in the plurality of cells. Configuration information of other cells other than the above-mentioned cells.
- the terminal device when the terminal device determines that the above cell is a multi-TRP cell (that is, M is an integer greater than 1), and a beam failure occurs in at least one beam failure detection resource group in the M beam failure detection resource groups configured for the cell. , the terminal device can report the beam failure recovery information corresponding to the at least one beam failure detection resource group through the first MAC CE.
- the beam failure recovery method provided by this application is used in a multi-TRP cell, as long as the terminal device determines that a TRP in the multi-TRP cell fails to occur beams, the terminal device can report the occurrence of the beam through the first MAC CE.
- the beam failure recovery information corresponding to the failed TRP can realize timely recovery of the failed beam in the multi-TRP cell.
- the first MAC CE includes a bitmap
- the configuration information of the cell corresponding to any bit includes N beam failure detection resource groups and N candidate beam resource groups, and N is 0 or 1, the The value is the first value by default, and the first value is used to indicate that no beam failure has occurred in the cell corresponding to any bit.
- the terminal equipment when the first MAC CE includes a cell corresponding to any bit in a bitmap and is a single TRP cell, no matter how much the value of any bit is equal to (for example, 0 or 1), the terminal equipment By default, no beam failure has occurred in a cell corresponding to any one bit. It can also be understood that when the configuration information of the cell corresponding to any bit includes N beam failure detection resource groups and N candidate beam resource groups, N is 0 or 1, in this case, the value of any bit is selected. The value is the first value by default, the first value is used to indicate that the cell corresponding to any bit does not have beam failure, and the first value may be equal to 0 or 1.
- the first MAC CE provided in the embodiment of the present application is only used to report the recovery information of beam failures in multiple TRP cells.
- the first MAC CE described above is also It is not used to report beam failure recovery information of the single TRP cell.
- any bit in the bitmap corresponds to M bytes
- the M bytes are in one-to-one correspondence with the M beam failure detection resource groups; or,
- the M bytes are in one-to-one correspondence with the M candidate beam resource groups; or,
- the M bytes are in one-to-one correspondence with the M transmission and reception nodes TRP.
- the above-mentioned M beam failure detection resource groups and the above-mentioned M candidate beam resource groups are configured by the above-mentioned M TRPs. It can be understood that, in the embodiments of the present application, "TRP”, “beam failure detection resource group”, and “alternative beam resource group” are equivalent to each other. The meanings of these descriptions are the same.
- any of the above bits corresponds to M bytes, which can be understood as a bit corresponding to a cell configured by the network device for the terminal device, and a cell corresponding to any bit is a multi-TRP cell with beam failures.
- beam failure may occur in one TRP in the multi-TRP cell.
- beam failure may occur in some or all of the TRPs in the multi-TRP cell.
- the terminal device detects that a beam failure occurs in the M beam failure detection resource groups included in the configuration information of the one cell.
- each of the M bytes includes a first field, where the first field is used to indicate that the beam corresponding to each byte fails Detecting if a beam was detected in a resource group failed.
- the beam failure detection resource group and the TRP may be equivalent to each other. That is to say, the above-mentioned first field may also be used to indicate whether a beam failure occurs in the TRP corresponding to each byte.
- the length of the first field may be 1 bit, and in this case, the first field may be located in the first bit or the second bit of the byte where the first field is located.
- the length of the first field may also be a larger number of bits.
- the length of the first field may also be 2 bits, and in this case, the first field may use any 2 bits (for example, the first 2 bits) of the byte where the first field is located.
- the remaining fields in each byte Is empty.
- each of the M bytes further includes a second field
- the second field is used to indicate whether the candidate beam resource group corresponding to each byte has candidate beam resources that meet the quality requirement.
- the above-mentioned second field is used to indicate whether there is alternative beam resource information in each byte.
- the candidate beam resource group and the TRP may be equivalent to each other. That is, the second field may also be used to indicate whether the TRP corresponding to each byte has an alternative beam resource that meets the quality requirement.
- the length of the second field may be 1 bit, and in this case, the second field may be located in the first bit, the second bit or the third bit of the byte where the second field is located.
- the length of the second field may also be a larger number of bits.
- the length of the second field may also be 2 bits. In this case, the second field may use any 2 bits (for example, the first 2 bits) of the byte where the second field is located.
- the second field indicates that there are alternative beam resources that meet the quality requirements in the alternative beam resource group corresponding to the byte where the second field is located, there are other remaining fields in the byte where the second field is located. Further beam failure recovery information.
- the second field indicates that there is no candidate beam resource meeting the quality requirement in the candidate beam resource group corresponding to the byte where the second field is located, the remaining fields in the byte where the second field is located are null, that is, there is no beam
- the failure recovery information can be ignored by the terminal device.
- each of the M bytes further includes a third field
- the third field is used to indicate the information of the candidate beam resource that meets the quality requirement determined in the candidate beam resource group corresponding to each byte.
- the candidate beam resource group and the TRP may be equivalent to each other. That is to say, the third field may also be used to indicate whether the TRP corresponding to each byte has the information of the candidate beam resource that meets the quality requirement.
- the length of the third field may be 6 bits or 5 bits. For example, when the length of the third field is 6 bits, the third field may specifically be the last 6 bits of the byte where the field is located. For example, when the length of the third field is 5 bits, the third field may specifically be the last 5 bits of the byte where the field is located.
- the length of the third field may also be other values, which are not specifically limited.
- first MAC CE One type of first MAC CE is provided in the above technical solution, which is denoted as the first type of first MAC CE. It can be understood that, in some implementation manners, one bit in the bitmap included in the first MAC CE of the first type corresponds to one field, and the one field corresponds to one cell. In other implementations, the first MAC CE of the first type includes multiple fields, each of the multiple fields corresponds to a cell, and each of the multiple fields uses multiple bits ( 2 bits or more), in this case, the plurality of fields can be regarded as one bitmap as a whole. That is to say, at this time, one field in the bitmap included in the first MAC CE includes multiple bits, and the one field corresponds to one cell.
- the first field included in the first MAC CE of the first type is used to indicate whether the beam failure detection resource group corresponding to the byte where the field is located has a beam failure
- the first MAC CE of the first type includes the second field.
- the field is used to indicate whether the candidate beam resource group corresponding to the beam failure detection resource group corresponding to the byte of this field has an alternative beam resource that meets the quality requirements
- the third field included in the first MAC CE of the first type is used.
- the first MAC CE of the above-mentioned first type may include any one of the following fields: the above-mentioned first field, the above-mentioned second field and the above-mentioned third field.
- the network device can determine the beam failure recovery strategy according to the first MAC CE of the first type, which can realize timely detection of occurrences in multiple TRP cells. Failed beams are recovered.
- any bit in the bitmap corresponds to one or more bytes.
- a fourth field exists in the first byte of the one or more bytes
- the fourth field is used to indicate the number of bytes corresponding to any one bit.
- the cell corresponding to any one bit can be understood as a multi-TRP cell with beam failures, and the specific number of bytes corresponding to any one bit is equal to the multi-TRP cell corresponding to any one bit.
- the number of TRPs with beam failures in the cell Specifically, when there is only one TRP in the multi-TRP cell corresponding to any bit, the beam failure occurs, and the any bit corresponds to only one byte, that is, the first MAC CE of the second type only includes the corresponding one of the bits. of a byte. For example, there are 2 TRPs in a multi-TRP cell.
- the bit corresponding to the multi-TRP cell in the above bitmap only corresponds to 1 byte.
- octets correspond to the TRP in which beam failure occurs, and at this time, only one octet corresponding to any one bit is included in the first MAC CE of the second type.
- the any bit corresponds to only a plurality of bytes, that is, the above-mentioned bit map includes the plurality of bytes corresponding to the any bit. For example, there are 2 TRPs in a multi-TRP cell.
- the bits in the above bitmap corresponding to the multi-TRP cell only correspond to 2 bytes.
- the first MAC CE of the above-mentioned second type includes 2 bytes corresponding to any one bit.
- the number of TRPs that have beam failures in the multi-TRP cell corresponding to any bit in the bitmap can be determined according to the fourth field, and the number of bytes corresponding to any bit can be dynamically adjusted, which is conducive to reducing resource overhead. .
- the fourth field can also be understood as being used to indicate the number of TRPs that have beam failures in the multi-TRP cell.
- the above fourth field can also be understood as the number of beam failure detection resource groups used to indicate beam failures in the multi-TRP cell.
- the fourth field may be defined as 0 to indicate that a single TRP in the multi-TRP cell has a beam failure, and the fourth field may be defined to be equal to 1 to indicate that the beam failure occurs for multiple TRPs in the multi-TRP cell.
- the above fourth field can also be understood as being used to indicate a beam failure type, and the beam failure type may include: a single TRP in a multi-TRP cell has a beam failure, multiple TRPs in a multi-TRP cell have a beam failure, and multiple TRPs in a multi-TRP cell have a beam failure.
- Beam failure occurs for all TRPs in the TRP cell.
- cell #1 is a cell that transmits multiple TRPs, and cell #1 includes 4 TRPs in total, and the 4 TRPs communicate with the same terminal device.
- the fourth field may be used to indicate that beam failure occurs for 1 TRP, 2 TRPs, 3 TRPs or 4 TRPs in cell #1.
- the fourth field is a field in the first byte of the one or more bytes
- the fourth field is used to indicate whether the next byte of the first byte carries beam failure recovery information of the cell.
- the above-mentioned fourth field may be located in the first bit or the second bit in the first byte, and in this case, the length of the fourth field is 1 bit.
- the length of the fourth field may also be a larger number of bits.
- the length of the fourth field may also be 2 bits, and in this case, the fourth field may use any 2 bits (for example, the first 2 bits) of the byte where the fourth field is located.
- the above-mentioned fourth field is used to indicate whether the next byte of the first byte carries the beam failure recovery information of the cell. It can also be understood that the fourth field can be used to indicate whether the first MAC CE exists or not.
- the second byte of the cell corresponding to any bit.
- the above-mentioned fourth field may be located in the first bit or the second bit in the first byte, and in this case, the length of the fourth field is 1 bit.
- the length of the fourth field may also be a larger number of bits.
- the length of the fourth field may also be 2 bits, and in this case, the fourth field may use the first 2 bits of the byte where the fourth field is located.
- the first byte of the one or more bytes further includes a fifth field
- the fifth field is used to indicate the information of the TRP in which beam failure occurs.
- the information type of the TRP in which beam failure occurs is not limited.
- the information of the TRP in which the beam failure occurred may be the index information of the TRP in which the beam failure occurred
- the index of the TRP may be the index of a beam failure detection resource group, that is, the index of the beam failure detection resource group corresponding to the TRP
- the index of the TRP may also be an index of an alternative beam resource group, that is, an index of an alternative beam resource group corresponding to the TRP
- the index of the TRP may also be an index of a CORESET group, that is, CORESETPoolIndex.
- the above-mentioned first MAC CE may further include a plurality of the above-mentioned fifth fields.
- the first MAC CE may include 3 fifth fields, denoted as the fifth field #1, the fifth field #2 and the fifth field #3, wherein the fifth field #1 is used to indicate the TRP in which beam failure occurs
- the index of the grouping is used to indicate the fourth field #1, the fifth field #2 and the fifth field #3, wherein the fifth field #1 is used to indicate the TRP in which beam failure occurs
- the length of the fifth field may be 1 bit, and the length of the fifth field may also be more bits.
- the length of the fifth field may also be 2 bits, and in this case, the fifth field may use any 2 bits (for example, the first 2 bits) of the byte where the fifth field is located.
- each of the one or more bytes further includes a sixth field, where the sixth field is used to indicate that each byte corresponds to The beam failure detection resource group, or the candidate beam resource group corresponding to each byte.
- the length of the sixth field may be 1 bit, and the length of the sixth field may also be more bits, which is not specifically limited.
- each of the above-mentioned one or more bytes further includes a seventh field, and the seventh field is used to indicate the candidate corresponding to each byte Whether there are alternative beams that meet the quality requirements or alternative beam resources that meet the quality requirements in the beam resource group.
- the seventh field is used to indicate whether candidate beam resource information exists in each byte.
- the candidate beam resource group and the TRP may be equivalent to each other.
- the seventh field may also be used to indicate whether the TRP corresponding to each byte has an alternative beam resource that meets the quality requirement.
- the length of the seventh field may be 1 bit, and the position of the seventh field may be the first bit, the second bit or the third bit in the corresponding byte.
- the seventh field in the first byte of the multiple bytes can be located in the third bit of the first byte, and the multiple bytes
- the seventh field in the second byte can also be in the third bit in the second byte, or the seventh field in the second byte can also be in the first bits.
- the length of the seventh field may also be a larger number of bits, which is not specifically limited.
- each byte in the above-mentioned one or more bytes further includes an eighth field, and the eighth field is used to indicate the device corresponding to each byte.
- the candidate beam resource group and the TRP may be equivalent to each other.
- the eighth field can also be used to indicate whether the TRP corresponding to each byte has information about whether the candidate beam resource that meets the quality requirement exists.
- the length of the third field may be 6 bits or 5 bits.
- the third field may specifically be the last 6 bits of the byte where the field is located.
- the third field may specifically be the last 5 bits of the byte where the field is located.
- the length of the eighth field may also be other values, which are not specifically limited. It can be understood that there are two ways of defining the eighth field in this embodiment of the present application, and the above eighth field is used to indicate the candidate beam resources that meet the quality requirements determined in the candidate beam resource group corresponding to each byte. information, which is the first definition mode of the eighth field provided in this embodiment of the present application.
- first MAC CE which is denoted as the second type of first MAC CE.
- the first MAC CE of the second type includes multiple fields, each of the multiple fields corresponds to a cell, and each of the multiple fields uses multiple bits ( 2 bits or more), in this case, the plurality of fields can be regarded as one bitmap as a whole. That is to say, at this time, one field in the bitmap included in the first MAC CE includes multiple bits, and the one field corresponds to one cell.
- the first MAC CE of the second type may include any one of the following fields: the above-mentioned fourth field, the above-mentioned fifth field, the above-mentioned seventh field and the above-mentioned eighth field.
- the network device After the network device receives the first MAC CE of the second type sent by the terminal device, the network device can determine the beam failure recovery strategy according to the first MAC CE of the second type, so as to realize timely detection of the first MAC CE in the multi-TRP cell. The failed beam is recovered.
- each of the one or more bytes includes the fourth field, the sixth field, the seventh field, and the eighth field at the same time.
- first MAC CE which is denoted as the third type of first MAC CE.
- the third type of first MAC CE includes multiple fields, each of the multiple fields corresponds to a cell, and each of the multiple fields uses multiple bits ( 2 bits or more), in this case, the multiple fields of the corresponding cell can be regarded as a bitmap as a whole. That is to say, at this time, one field in the bitmap included in the first MAC CE includes multiple bits, and the one field corresponds to one cell.
- the first MAC CE of the third type may include the above-mentioned fourth field, the above-mentioned sixth field, the above-mentioned seventh field and the above-mentioned eighth field.
- the network device After the network device receives the first MAC CE of the third type sent by the terminal device, the network device can determine the beam failure recovery strategy according to the first MAC CE of the third type, so as to realize timely correction of the first MAC CE in the multi-TRP cell. The failed beam is recovered.
- the specific formats of the above three types of first MAC CEs provided by the embodiments of the present application are only for illustration and do not constitute any limitation on the specific formats of the first MAC CEs provided by the embodiments of the present application.
- the first MAC CE provided in this embodiment of the present application may include the above-mentioned multiple fields (the multiple fields include: the first field, the second field, the third field, the fourth field, the Five fields, sixth field, seventh field and eighth field) any one field or any kind of fields.
- the above-mentioned first MAC CE may only include the above-mentioned first field.
- the above-mentioned first MAC CE may include the above-mentioned fourth field.
- the above-mentioned first MAC CE may include the above-mentioned sixth field.
- the above-mentioned first MAC CE may include the above-mentioned first field and the above-mentioned second field.
- the above-mentioned first MAC CE may further include the above-mentioned first field, the above-mentioned second field and the above-mentioned fourth field.
- the above-mentioned first MAC CE may further include the above-mentioned fourth field and the above-mentioned fifth field.
- each of the one or more bytes further includes an eighth field, and the value of the eighth field includes a plurality of field values, One of the plurality of field values is used to indicate that there is no candidate beam resource that meets the quality requirement in the candidate beam resource group corresponding to each byte, and the one field value is excluded from the plurality of field values Each field value of is used to indicate the information of a candidate beam resource that meets the quality requirement.
- the above-mentioned eighth field is the second definition manner provided by this embodiment of the present application.
- the number of bits included in the eighth field may be multiple, for example, the eighth field includes 4 bits, 5 bits, 6 bits or 7 bits, and so on.
- the first MAC CE further includes a tenth field
- the tenth field is used to indicate the type of beam failure.
- the type of beam failure includes: a beam failure occurs in the first beam failure detection resource group in the M beam failure detection resource group, the M beam failure detection resource group A beam failure occurs in the second beam failure detection resource group in the M beam failure detection resource groups, and beam failure occurs in both beam failure detection resource groups in the M beam failure detection resource groups.
- M may be equal to, but not limited to, 2, and M may also be other integers greater than 1, for example, M may also be equal to 3, 4, or 5, and so on.
- the tenth field used to indicate the types of beam failures may include more types.
- the tenth field used to indicate the type of beam failure may include: a beam failure occurs in the first beam failure detection resource group in the three beam failure detection resource groups, and the three beam failure detection resource groups Fail to detect the second beam in the resource group Fail to detect the beam failure in the resource group, the 3 beams fail to detect the third beam in the resource group Fail to detect the beam failure in the resource group, the 3 beams fail to detect the resource group A beam failure occurs in any two beam failure detection resource groups in , and beam failure occurs in all three beam failure detection resource groups.
- the tenth field includes 2 bits
- Each of the 2 bits corresponds to one beam failure detection resource group in the M beam failure detection resource groups, and each bit is used to indicate whether a beam failure occurs in the corresponding one beam failure detection resource group.
- any one bit corresponds to two bytes
- any one bit corresponds to one byte.
- the tenth field used to indicate the type of beam failure may specifically include: a beam failure occurs in the first beam failure detection resource group in the M beam failure detection resource groups, the M beam failure detection resource group Beam failure detection occurs in the second beam failure detection resource group in the M beam failure detection resource groups, beam failure detection occurs in the third beam failure detection resource group in the M beam failure detection resource groups, and beam failure detection occurs in the M beam failure detection resource groups. Beam failure occurred in all three beam failure detection resource groups in the resource group.
- the above tenth field may further include a larger number (eg, 3 bits, etc.) of bits.
- the embodiment of the present application also provides another type of first MAC CE, which is denoted as the fifth type of first MAC CE.
- the fifth type of the first MAC CE provided by the embodiment of the present application includes: a bitmap. It can be understood that the definition of a bitmap included in the first MAC CE of the fifth type is the same as the definition of a bitmap included in the first MAC CE of the first type, and is not described in detail here. For details, refer to the definition of a bitmap included in the first MAC CE of the first type above. Or, the definition of a bitmap included in the first MAC CE of the fifth type is the same as the definition of a bitmap included in the first MAC CE of the fourth type, and the content not described in detail here is specific Reference may be made to the definition of a bitmap included in the above-mentioned fourth type of first MAC CE.
- any bit in the above bitmap corresponds to one or more bytes
- the first MAC CE of the fifth type includes the above tenth field. That is, the fifth type of the first MAC CE provided in the embodiment of the present application can be understood as the first MAC CE including the tenth field, and other fields included in the fifth type of the first MAC CE are not specifically limited.
- the first MAC CE of the fifth type may further include the above-mentioned seventh field and the above-mentioned eighth field of the first definition manner.
- the first MAC CE of the fifth type may further include the eighth field of the above-mentioned second definition manner.
- the first MAC CE of the fifth type may further include the above-mentioned seventh field and the above-mentioned eighth field of the second definition manner.
- the first MAC CE may also include any one of the following fields: one or any number of fields:
- Field 1 is used to indicate the number of TRPs with beam failures in the multi-TRP cell, or field 1 is used to indicate the number of beam failure detection resource groups with beam failures in the multi-TRP cell.
- Field 2 is used to indicate the beam failure type that occurs in the multi-TRP cell.
- the beam failure type can include one or more of the following: a single TRP in the multi-TRP cell has a beam failure, and some TRPs in the multi-TRP cell Beam failure occurs, and beam failure occurs for all TRPs in a multi-TRP cell.
- the beam failure types can also include one or more of the following: Beam failure occurs in the first TRP, beam failure occurs in the second TRP, and beam failure occurs in both TRPs Fail, no beam failure has occurred for both TRPs.
- field 2 includes 2 bits, the field 2 corresponds to 4 field values, and each field value corresponds to one of the above-mentioned types.
- the beam failure types may also include one or more of the following: beam failure occurs in the first TRP, beam failure occurs in the second TRP, and beam failure occurs in both TRPs.
- Field 2 includes 2 bits, corresponding to 4 field values, wherein three field values respectively indicate that the first TRP has a beam failure, the second TRP has a beam failure, and both TRPs have a beam failure.
- Field 3 a TRP corresponding to field 3, field 3 is used to indicate whether beam failure occurs in the TRP corresponding to field 3.
- field 3 corresponds to a beam failure detection resource group, and field 3 is used to indicate whether a beam failure is detected in the beam failure detection resource group corresponding to field 3.
- the number of the above fields 3 may be M, respectively corresponding to M TRPs, or respectively corresponding to M beam failure detection resource groups, or respectively corresponding to M TRPs, or respectively corresponding to M CORESET groups.
- Field 4 is used to indicate the information of the TRP in which the beam failure occurs, such as the index of the TRP.
- the index of the above-mentioned TRP may be the index of a beam failure detection resource group, that is, the index of the beam failure detection resource group corresponding to the TRP; it may also be the index of an alternative beam resource group, that is, the corresponding candidate beam resource group of the TRP. index; it can also be an index of a CORESET group, that is, CORESETPoolIndex.
- a plurality of the above fields may also be included to indicate a plurality of TRPs with beam failures or the indexes of beam failure detection resource groups/alternative beam resource groups/CORESET groups corresponding to the TRPs.
- the information type of the TRP in which beam failure occurs is not limited.
- the information of the TRP in which the beam failure occurred may be the index information of the TRP in which the beam failure occurred
- the index of the TRP may be the index of a beam failure detection resource group, that is, the index of the beam failure detection resource group corresponding to the TRP
- the index of the TRP may also be an index of an alternative beam resource group, that is, an index of an alternative beam resource group corresponding to the TRP
- the index of the TRP may also be an index of a CORESET group, that is, CORESETPoolIndex.
- the above-mentioned first MAC CE may further include a plurality of above-mentioned fields 4.
- the first MAC CE may include three fields 4, wherein the first field 4 is used to indicate the index of the beam failure detection resource group corresponding to the TRP in which beam failure occurs, and the second field 4 is used to indicate the occurrence of beam failure.
- the index of the candidate beam detection resource group corresponding to the TRP, and the third field 4 is used to indicate the index of the CORESET group corresponding to the TRP in which beam failure occurs.
- Field 5 is used to indicate the number of candidate beam resources reported by the terminal device.
- Field 6 corresponds to a TRP, and field 6 is used to indicate whether a TRP corresponding to field 6 has candidate beam resources that meet the quality requirements.
- field 6 corresponds to an alternative beam resource group, and field 6 is used to indicate whether there is an alternative beam resource that meets the quality requirement in the alternative beam resource group corresponding to this field 6 .
- the remaining fields in the byte where this field is located have no specific meaning and can be ignored by the terminal device.
- the number of the above-mentioned fields 6 may be M, respectively corresponding to M TRPs, or respectively corresponding to M beam failure detection resource groups, or respectively corresponding to M TRPs, or respectively corresponding to M CORESET groups.
- Field 7 is used to indicate the information of the alternative beam resources.
- the number of the above fields 7 may be M, respectively corresponding to M TRPs, or respectively corresponding to M beam failure detection resource groups, or respectively corresponding to M TRPs, or respectively corresponding to M CORESET groups.
- a field value of field 7 may be reserved to indicate that there is no alternative beam resource that meets the quality requirement. For example, when the values of all bits corresponding to field 7 are all 0 or all 1, it indicates that there is no candidate beam resource that meets the quality requirement.
- the remaining field values indicate information about a candidate beam resource that meets the quality requirement.
- the multiple candidate beam resources indicated by the above-mentioned multiple fields 7 can be understood as resources in multiple candidate beam resource groups, that is, the The multiple candidate beam resources are in one-to-one correspondence with the multiple candidate beam resource groups.
- the arrangement order of the above-mentioned multiple candidate beam resources in the first MAC CE may be performed according to the order of the candidate beam resource groups corresponding to the above-mentioned multiple candidate beam resources (for example, index size order or configuration order) arrangement.
- the above information on the candidate beam resources may be, but not limited to, an index of the candidate beam resources.
- Field 8 is used to indicate which TRP the reported candidate beam resource belongs to, or field 8 is used to indicate which candidate beam resource group the reported candidate beam resource belongs to.
- the first MAC CRE may include multiple fields 8, and the multiple fields 8 are used to indicate which TRP the multiple reported alternative beam resources belong to respectively. , or, the multiple fields 8 are used to indicate which candidate beam resource group the multiple candidate beam resources respectively belong to.
- Method 1 The terminal device sends another first MAC CE to notify the network device that another beam failure detection resource group also has a beam failure, and reports the information of the alternative beam resources corresponding to the beam failure detection resource group, such as whether it exists The candidate beam resources that meet the quality requirements and the specific candidate beam resource information.
- the terminal device can send another first MAC CE to notify the network device that beam failures have occurred in both beam failure detection resource groups, and report the information about the alternative beam resources corresponding to the two beam failure detection resource groups, such as Whether there are alternative beam resources that meet the quality requirements and information on specific alternative beam resources. It can also be specified that the terminal device does not send other first MAC CEs until the previous beam failure recovery procedure is completed. In other words, it is necessary for the terminal device to send another first MAC CE response message after receiving the response message of the previous first MAC CE, or after receiving the response message and after a certain period of time, such as the time corresponding to 28 symbols. MAC CE to notify the network device that another beam failure detection resource group also has a beam failure.
- method 1 and method 2 which one the terminal device uses can be determined according to conditions. Specifically, when the first condition is satisfied, method 1 is adopted. The second condition is adopted when the second condition is satisfied.
- the first condition can be a combination of one or more of the following:
- the terminal device has received the corresponding response message after sending the previous first MAC CE;
- the current time has not reached a certain time since receiving the response message of the previous first MAC CE, such as the time corresponding to 28 symbols.
- the second condition can be a combination of one or more of the following:
- the terminal device After the terminal device sends the previous first MAC CE, it has not yet received the corresponding response message.
- the method further includes:
- the terminal device When M is equal to 1, and a beam failure occurs in the M beam failure detection resource groups, the terminal device sends the beam failure recovery information corresponding to the cell through the second MAC CE.
- One type of second MAC CE is provided in the above technical solution, which is denoted as the first type of second MAC CE.
- the above-mentioned cell is a single-TRP cell
- the terminal equipment can report the beam failure recovery information corresponding to the single-TRP cell with beam failure through the second MAC CE of the above-mentioned first type, so as to realize timely correction of the beam failure.
- the failed beam in a single TRP cell is recovered.
- the second MAC CE includes a bitmap, and for a bit in the bitmap, the one bit corresponds to a byte,
- the above-mentioned one byte also includes a seventh field, and the seventh field is used to indicate whether there is an alternative beam that meets the quality requirement or an alternative beam that meets the quality requirement in the alternative beam resource group corresponding to the one byte.
- beam resources Alternatively, the seventh field is used to indicate whether candidate beam resource information exists in the one byte.
- the candidate beam resource group and the TRP may be equivalent to each other.
- the seventh field may also be used to indicate whether the TRP corresponding to the one byte has an alternative beam resource that meets the quality requirement.
- the length of the seventh field is 1 bit
- the position of the seventh field may be the first bit, the second bit or the third bit in the corresponding byte.
- the seventh field in the first byte of the multiple bytes can be located in the third bit of the first byte, and the multiple bytes
- the seventh field in the second byte can also be in the third bit in the second byte, or the seventh field in the second byte can also be in the first bits.
- the above-mentioned one byte also includes an eighth field, and the eighth field is used to indicate the information of the candidate beam that meets the quality requirement determined in the candidate beam resource group corresponding to the one byte or the information that meets the quality requirement.
- Information about alternative beam resources In this embodiment of the present application, the candidate beam resource group and the TRP may be equivalent to each other.
- the eighth field can also be used to indicate whether the TRP corresponding to the one byte has the information of the candidate beam resource that meets the quality requirement.
- the length of the third field may be 6 bits or 5 bits.
- the second MAC CE includes a bitmap
- any bit in the bitmap if the configuration information of the cell corresponding to any bit includes M beam failure detection resource groups and M candidate beam resource groups, M is an integer greater than 1, and the any bit The value of is the second value by default, and the second value is used to indicate that no beam failure has occurred in the cell corresponding to any bit.
- the configuration information of the cell corresponding to the any bit includes M beam failure detection resource groups and M candidate beam resource groups, M is an integer greater than 1, the value of any bit is 0 or 1 by default, and the value of any bit is used to indicate that no beam failure has occurred in the cell corresponding to any bit. That is to say, if the value of any bit is equal to 0 or 1, it indicates that no beam failure has occurred in the cell corresponding to any bit.
- the second MAC CE of the first type includes a cell corresponding to a bit in a bitmap
- a multi-TRP cell is used, no matter whether the multi-TRP cell has a beam failure, the above-mentioned first type of cell Neither the second MAC CE is used to report beam failure recovery information corresponding to the multiple TRP cells.
- the second MAC CE includes a bitmap, and any bit in the one bitmap corresponds to a multi-TRP cell.
- any of the above bits may be equal to 0 or 1.
- the value of any bit is equal to 0 to indicate that a TRP in a multi-TRP cell corresponding to any bit has a beam failure
- the value of any bit can be defined to be equal to 1 to indicate that a corresponding one of the bits has failed. Beam failure occurs with multiple TRPs in a multi-TRP cell.
- the above technical solution provides another type of second MAC CE, which is denoted as the second type of second MAC CE.
- the terminal device can report the beam failure recovery information corresponding to the multi-TRP cell in which the beam failure occurs through the second MAC CE of the above-mentioned second type, which can realize the timely recovery of the failed beam in the multi-TRP cell.
- the first aspect when a beam failure occurs in a multi-TRP cell corresponding to any bit in a bitmap included in the second MAC CE, there is a One byte, and the one byte corresponds to any of the bits.
- the one byte includes a ninth field
- the definition of the ninth field can be any of the following:
- the ninth field is used to indicate the information of the TRP in which the beam failure has occurred, or the ninth field is used to indicate the information of the beam failure detection resource group in which the beam failure has been detected, or the ninth field is used to indicate the alternative for reporting Information about the candidate beam resource group corresponding to the beam resource.
- the above ninth field is used to indicate the information of the TRP in which beam failure occurs. It can be understood that the ninth field is used to indicate the beam failure recovery information corresponding to the multi-TRP cell corresponding to the byte of the ninth field.
- the ninth field is used to indicate the number of TRPs with beam failures, or, the ninth field is used to indicate the types of beam failures, where the types of beam failures include: beam failure occurs in a single TRP in a multi-TRP cell, multi-TRP cells Beam failure occurs in some or all of the TRPs.
- the configuration information of the cell includes two candidate beam resource groups, and each candidate beam resource group includes 4 candidate beam resources.
- the numbers of the 4 resources in the first candidate beam resource group may be ⁇ #0, #1, #2, #3 ⁇ , and the numbers of the 4 resources in the second candidate beam resource group may be ⁇ # 4, #5, #6, #7 ⁇ , in this case, it can be considered that the candidate beam resources of the candidate beam resource group configured by the network device to the above-mentioned cell are configured in a cross-resource group numbering manner.
- the ninth field is used to indicate a reserved field, that is, the ninth field is empty and has no specific meaning.
- the one byte includes an eighth field
- the eighth field is used to indicate the information of the candidate beam that meets the quality requirement or the information of the candidate beam resource that meets the quality requirement determined in the candidate beam resource group corresponding to the one byte.
- the candidate beam resource group and the TRP may be equivalent to each other.
- the eighth field may also be used to indicate whether the TRP corresponding to the one byte has information about the candidate beam resources that meet the quality requirement.
- the length of the third field may be 6 bits or 5 bits.
- the terminal equipment can report the beam failure recovery information corresponding to the single TRP cell and the multi-TRP cell in which the beam failure occurs through the second MAC CE of the above-mentioned second type, which can realize the timely recovery of the single TRP cell and the multi-TRP cell.
- the failed beams are recovered. It can be understood that, if the cell corresponding to any bit in a bitmap included in the second type of second MAC CE is a single TRP cell, then the R field corresponding to any bit has no specific meaning.
- the R field corresponding to any bit is used to indicate the cell corresponding to the byte where the R field is located.
- Corresponding beam failure recovery information or indicating the number of TRPs in which beam failures occurred, or indicating the types of beam failures.
- the first logical channel identifier LCID corresponding to the first MAC CE is different from the second LCID corresponding to the second MAC CE.
- the second LCID is 50 or 51
- the first LCID is any one of the following logical channel identifiers: 35, 36, 37, 38, 39, 40, 41, 42, 43, 44 or 47.
- the specific value of the above-mentioned first LCID and the specific value of the above-mentioned second LCID are only for illustration and do not constitute any limitation. That is to say, under the condition that the value of the first LCID is guaranteed to be different from the value of the second LCID, the value of the first LCID may be other values, and the value of the second LCID may also be for other values.
- the specific format of the first MAC CE and the specific format of the second MAC CE described in the first aspect are only for illustration and do not constitute any limitation.
- the above-mentioned first MAC CE or the above-mentioned second MAC CE may further include other fields (for example, reserved fields).
- other fields for example, reserved fields.
- a beam failure recovery method comprising:
- the network device sends configuration information of the cell, where the configuration information of the cell includes M beam failure detection resource groups and M candidate beam resource groups, and the M beam failure detection resource groups correspond to the M candidate beam resource groups one-to-one , M is an integer;
- the network device receives a first medium access control element MAC CE, the first MAC CE carries beam failure recovery information corresponding to the cell, and the first MAC CE is at least one of the M beam failure detection resource groups for the terminal device Sent when a beam failure occurs in the beam failure detection resource group, and M is an integer greater than 1;
- the network device determines, according to the first MAC CE, whether to switch the first beam to a second beam, where the first beam is a beam used to transmit the at least one beam failure detection resource group, and the second beam is used to transmit the M
- the beams of at least one candidate beam resource group in the candidate beam resource groups, the at least one candidate beam resource group is in one-to-one correspondence with the at least one beam failure detection resource group.
- the network device when the network device receives the first medium access control element MAC CE, it can be understood that the terminal device determines that M is an integer greater than 1, and a beam failure occurs in at least one beam failure detection resource group in the M beam failure detection resource groups When the terminal device sends the beam failure detection resource corresponding to the cell through the first MAC CE, correspondingly, the network device that communicates with the terminal device receives the first MAC CE.
- first MAC CE described in the second aspect is the same as the first MAC CE described in the first aspect. Therefore, the format of the first MAC CE that is not described in detail in the second aspect can be referred to. The above description of the first aspect.
- the network device can determine, according to the received first MAC CE, a TRP with beam failure in a multi-TRP cell, and an alternative beam resource corresponding to the TRP with beam failure.
- the network device may switch the TRP in which the beam failure occurs from the current beam (that is, the above-mentioned first beam) to the beam used for transmitting the alternative beam resources ( That is, the above-mentioned second beam) can realize timely recovery of the failed beam in the multi-TRP cell.
- the network device determines whether to switch the first beam to the second beam according to the first MAC CE, including:
- the network device determines, according to the first MAC CE, that the candidate beam resource group corresponding to the at least one beam failure detection resource group has a first candidate beam resource that meets the quality requirement, and that the first candidate beam resource that meets the quality requirement has a information;
- the network device switches the first beam to the second beam.
- the method further includes:
- the network device receives a second MAC CE, and the second MAC CE carries beam failure recovery information corresponding to the cell, and the second MAC CE is sent by the terminal device when a beam failure occurs in the M beam failure detection resource groups, and M is an integer equal to 1;
- the network device determines whether to switch a third beam to a fourth beam according to the second MAC CE, where the third beam is a beam used for transmitting the M beam failure detection resource groups, and the fourth beam is used for transmitting the M beams beams of candidate beam resource groups, the M beam failure detection resource groups correspond to the M candidate beam resource groups.
- the second MAC CE described in the second aspect above is the same as the second MAC CE of the first type described in the first aspect above. Therefore, the second MAC CE not described in detail in the second aspect above is the same. For details, please refer to the relevant description of the first aspect above.
- the network device can determine the TRP in which the beam failure occurs in the single TRP cell according to the received second MAC CE (that is, the second MAC CE of the first type), and the equipment corresponding to the TRP in which the beam failure occurs. Select beam resources.
- the network device may switch the TRP in which the beam failure occurs from the current beam (that is, the above-mentioned third beam) to the beam used for transmitting the alternative beam resources ( That is, the above-mentioned fourth beam) can realize timely recovery of the failed beam in a single TRP cell.
- the network device determines whether to switch the third beam to the fourth beam according to the second MAC CE, including:
- the network device determines, according to the second MAC CE, that the candidate beam resource group corresponding to the M beam failure detection resource groups has a second candidate beam resource that meets the quality requirement, and that the second candidate beam resource that meets the quality requirement information;
- the network device switches the third beam to the fourth beam.
- the first logical channel identifier LCID corresponding to the first MAC CE is different from the second LCID corresponding to the second MAC CE.
- the second LCID is 50 or 51
- the first LCID is any one of the following logical channel identifiers: 35, 36, 37, 38, 39, 40, 41, 42, 43, 44 or 47.
- first MAC CE described in the foregoing second aspect is the same as the first MAC CE described in the foregoing first aspect
- the second MAC CE described in the foregoing second aspect is the same as the first MAC CE described in the foregoing first aspect.
- the two MAC CEs are the same. Therefore, for the formats of the first MAC CE and the second MAC CE that are not described in detail in the second aspect, please refer to the description of the first aspect.
- a communication apparatus including each module or unit for performing the method in the first aspect and any possible implementation manner of the first aspect.
- a communication apparatus including a processor.
- the processor is coupled to the memory, and can be configured to execute instructions in the memory, so as to implement the method in the first aspect and any possible implementation manner of the first aspect.
- the communication device further includes a memory.
- the communication device further includes a communication interface, and the processor is coupled to the communication interface.
- the communication apparatus is a terminal device.
- the communication interface may be a transceiver, or an input/output interface.
- the communication device is a chip configured in the terminal device.
- the communication interface may be an input/output interface.
- the transceiver may be a transceiver circuit.
- the input/output interface may be an input/output circuit.
- a communication apparatus including various modules or units for performing the method in the second aspect and any possible implementation manner of the second aspect.
- a communication apparatus including a processor.
- the processor is coupled to the memory and can be used to execute instructions in the memory to implement the method in the second aspect and any possible implementation manner of the second aspect.
- the communication device further includes a memory.
- the communication device further includes a communication interface, and the processor is coupled to the communication interface.
- the communication apparatus is a network device.
- the communication interface may be a transceiver, or an input/output interface.
- the communication device is a chip configured in a network device.
- the communication interface may be an input/output interface.
- the transceiver may be a transceiver circuit.
- the input/output interface may be an input/output circuit.
- a processor including: an input circuit, an output circuit, and a processing circuit.
- the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method of the first aspect to the second aspect and any possible implementation manner of the first aspect to the second aspect.
- the above-mentioned processor may be a chip
- the input circuit may be an input pin
- the output circuit may be an output pin
- the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
- the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
- the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter
- the circuit can be the same circuit that acts as an input circuit and an output circuit at different times.
- the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
- a processing apparatus including a processor and a memory.
- the processor is configured to read the instructions stored in the memory, and can receive signals through the receiver and transmit signals through the transmitter, so as to execute the first aspect to the second aspect and any possible implementation manner of the first aspect to the second aspect Methods.
- the processor is one or more, and the memory is one or more.
- the memory may be integrated with the processor, or the memory may be provided separately from the processor.
- the memory can be a non-transitory memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be separately set in different On the chip, the embodiment of the present application does not limit the type of the memory and the setting manner of the memory and the processor.
- ROM read only memory
- the relevant data interaction process such as sending measurement configuration information
- receiving information may be a process of receiving information by the processor.
- the data output by the processing can be output to the transmitter, and the input data received by the processor can be from the receiver.
- the transmitter and the receiver may be collectively referred to as a transceiver.
- the processing device in the eighth aspect above may be a chip, and the processor may be implemented by hardware or software.
- the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor may be a logic circuit or an integrated circuit.
- the processor can be a general-purpose processor, which is realized by reading software codes stored in a memory, and the memory can be integrated in the processor or located outside the processor and exist independently.
- a computer program product comprising: a computer program (also referred to as code, or instructions), which, when the computer program is executed, causes the computer to execute the above-mentioned first to second aspects and the method in any possible implementation manner of the first aspect to the second aspect.
- a computer program also referred to as code, or instructions
- a computer-readable medium is provided, the computer-readable medium is stored with a computer program (also referred to as code, or instruction) when it runs on a computer, causing the computer to execute the above-mentioned first to second aspects Aspects and methods of any possible implementations of the first to second aspects.
- a computer program also referred to as code, or instruction
- a communication system including the aforementioned network device and terminal device.
- FIG. 1 is a schematic diagram of a communication system 100 suitable for an embodiment of the present application.
- FIG. 2 is a schematic diagram of a communication system 200 suitable for an embodiment of the present application.
- FIG. 3 is a schematic diagram of a hardware structure of a network device and a terminal device provided by an embodiment of the present application.
- FIG. 4 is a schematic diagram of the format of a MAC CE suitable for a beam failure recovery method.
- FIG. 5 is a schematic diagram of a beam failure recovery method 500 provided by an embodiment of the present application.
- FIG. 6 is a schematic diagram of a format of a first type of first MAC CE provided by an embodiment of the present application.
- FIG. 7 is a schematic diagram of a format of a first type of first MAC CE provided by an embodiment of the present application.
- FIG. 8 is a schematic diagram of a format of a second type of first MAC CE provided by an embodiment of the present application.
- FIG. 9 is a schematic diagram of a format of a second type of first MAC CE provided by an embodiment of the present application.
- FIG. 10 is a schematic diagram of a format of a third type of first MAC CE provided by an embodiment of the present application.
- FIG. 11 is a schematic diagram of a format of a third type of first MAC CE provided by an embodiment of the present application.
- FIG. 12 is a schematic diagram of the format of the fourth type of the first MAC CE provided by the embodiment of the present application.
- FIG. 13 is a schematic diagram of the format of the fourth type of the first MAC CE provided by the embodiment of the present application.
- FIG. 14 is a schematic diagram of the format of the fifth type of the first MAC CE provided by the embodiment of the present application.
- FIG. 15 is a schematic diagram of the format of the fifth type of the first MAC CE provided by the embodiment of the present application.
- 16 is a schematic diagram of a format of a second type of second MAC CE provided by an embodiment of the present application.
- FIG. 17 is a schematic block diagram of a communication apparatus 1000 provided by an embodiment of the present application.
- FIG. 18 is a schematic block diagram of a communication apparatus 1100 provided by an embodiment of the present application.
- FIG. 19 is another schematic block diagram of a communication apparatus 1200 provided by an embodiment of the present application.
- association relationship means that there can be three kinds of relationships, for example, A and/or B, it can be expressed as: the existence of A alone, the existence of A and B at the same time, and the existence of B alone.
- at least one refers to one or Multiple
- multiple refers to two or more.
- the words “first” and “second” do not limit the quantity and execution order, and the words “first” and “second” are also combined Not necessarily different.
- indication may include direct indication and indirect indication, as well as explicit indication and implicit indication.
- the information indicated by a certain field is called information to be indicated, and in the specific implementation process, there are many ways to indicate the information to be indicated.
- the information to be indicated may be directly indicated, wherein the information to be indicated itself or an index of the information to be indicated, etc.
- the information to be indicated may also be indirectly indicated by indicating other information, wherein there is an association relationship between the other information and the information to be indicated.
- only a part of the information to be indicated may be indicated, while other parts of the information to be indicated are known or agreed in advance.
- the indication of specific information can also be implemented by means of the arrangement order of each information pre-agreed (for example, stipulated by the protocol), thereby reducing the indication overhead to a certain extent.
- TRP can be replaced with "beam failure detection resource group", “alternative beam resource group”, or “CORESET group”.
- the intended meaning is the same of.
- the essence of a beam failure of a TRP is that a beam failure occurs in the beam failure detection resource group corresponding to the TRP, or a beam failure is detected in the beam failure detection resource group corresponding to the TRP. Therefore, "beam failure occurs in a TRP” can be replaced with "beam failure is detected from a beam failure detection resource group corresponding to the one TRP".
- the meaning to be expressed is the same.
- the specific meaning of detecting a beam failure from a beam failure detection resource group is that the resource quality in the beam failure detection resource group is lower than the first threshold.
- one TRP is in one-to-one correspondence with one beam failure detection resource group and one candidate beam resource group, and the TRP index can be specifically represented as the index of the one beam failure detection resource group, or the An index of one candidate beam resource group, or other associated indexes, such as an index of a CORESET group (eg, CORESETPoolIndex).
- CORESET group eg, CORESETPoolIndex
- the embodiment of the beam in the NR protocol can be a spatial domain filter, or a spatial filter, or a spatial domain parameter, a spatial parameter, and a spatial domain setting. setting), spatial setting, or quasi-colocation (QCL) information, QCL assumption, QCL indication, etc.
- a beam may also be indicated by a transmission configuration index state (TCI-state) parameter, or by a spatial relation parameter.
- TCI-state transmission configuration index state
- the beam can be replaced by a spatial filter, a spatial filter, a spatial parameter, a spatial parameter, a spatial setting, a spatial setting, QCL information, QCL assumption, QCL indication, TCI-state (for example, downlink (down link, DL) TCI-state, uplink (up link, UL) TCI-state), or spatial relationship, etc.
- a spatial filter for example, downlink (down link, DL) TCI-state, uplink (up link, UL) TCI-state
- QCL information for example, downlink (down link, DL) TCI-state, uplink (up link, UL) TCI-state
- spatial relationship for example, downlink (down link, DL) TCI-state, uplink (up link, UL) TCI-state
- TCI-state for example, downlink (down link, DL) TCI-state, uplink (up link, UL) TCI-state
- the beam may also be replaced by other terms representing the beam, which are not specifically limited in this embodiment
- the beam used to transmit the signal can be called the transmission beam (transmission beam, Tx beam), also can be called the spatial domain transmission filter (spatial domain transmission filter), the spatial transmission filter (spatial transmission filter), the spatial domain transmission parameter (spatial domain) transmission parameter) or spatial transmission parameter, spatial domain transmission setting or spatial transmission setting.
- Downlink transmit beams can be indicated by TCI-state.
- the transmitting beam may refer to the distribution of signal strength in different directions in space after the signal is transmitted by the antenna
- the receiving beam may refer to the signal strength distribution of the wireless signal received from the antenna in different directions in space.
- the beams may be wide beams, or narrow beams, or other types of beams.
- the beamforming technique may be beamforming or other techniques.
- the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology.
- Beams generally correspond to resources. For example, when performing beam measurement, network equipment uses different resources to measure different beams. The terminal equipment feeds back the measured resource quality, and the network equipment knows the quality of the corresponding beam. During data transmission, beam information is also indicated by its corresponding resources. For example, the network device indicates the information of the physical downlink shared channel (PDSCH) beam of the terminal device through the transmission configuration indicator (TCI) resource in the downlink control information (DCI).
- PDSCH physical downlink shared channel
- TCI transmission configuration indicator
- multiple beams with the same or similar communication characteristics are regarded as one beam.
- One or more antenna ports may be included in a beam for transmitting data channels, control channels, sounding signals, etc.
- One or more antenna ports forming a beam can also be viewed as a set of antenna ports.
- the beam refers to the transmission beam of the network device.
- each beam of the network device corresponds to a resource, so the beam corresponding to the resource can be uniquely identified by the index of the resource.
- the network device configures one or more beam failure detection resources (RadioLinkMonitoringRS) for the terminal device through radio resource control (radio resource control, RRC) signaling to detect whether a beam failure occurs.
- RadioLinkMonitoringRS includes multiple parameters, and the explanation of each parameter is as follows.
- the configuration related to beam failure detection is included in the RadioLinkMonitoringConfig IE.
- RadioLinkMonitoringConfig:: SEQUENCE ⁇
- failureDetectionResourcesToAddModList SEQUENCE(SIZE(1..maxNrofFailureDetectionResources))OF RadioLinkMonitoringRS
- failureDetectionResourcesToReleaseList SEQUENCE(SIZE(1..maxNrofFailureDetectionResources))OF RadioLinkMonitoringRS-Id
- RadioLinkMonitoringRS:: SEQUENCE ⁇
- this resource when configured as beamFailure, indicates that the resource is a beam failure detection resource
- the type of the resource whether it is an SSB resource or a CSI-RS resource
- the network device configures a beam failure recovery configuration (BeamFailureRecoveryConfig) for the terminal device through RRC signaling, which includes parameters related to beam failure recovery of the cell, such as resources for new beam discovery.
- BeamFailureRecoveryConfig a beam failure recovery configuration for the terminal device through RRC signaling, which includes parameters related to beam failure recovery of the cell, such as resources for new beam discovery.
- BeamFailureRecoveryConfig:: SEQUENCE ⁇
- One or more resources for new beam discovery from which new beams are available are available.
- candidateBeamRSList SEQUENCE(SIZE(1..maxNrofCandidateBeams))OF PRACH-
- the timer of BFR if the time specified by the timer is exceeded and the BFR is not successful, it will not continue.
- the parameters may include one or more of the following: delay spread (delay spread), Doppler spread (doppler spread), Doppler shift (doppler shift), average delay (average delay), average Gain, spatial Rx parameters.
- the spatial reception parameters may include one or more of the following: angle of arrival (AOA), average AOA, AOA extension, angle of departure (AOD), average departure angle AOD, AOD extension, reception Antenna spatial correlation parameters, transmit antenna spatial correlation parameters, transmit beams, receive beams, and resource identifiers.
- AOA angle of arrival
- AOA extension angle of departure
- AOD angle of departure
- AOD extension angle of departure
- reception Antenna spatial correlation parameters transmit antenna spatial correlation parameters, transmit beams, receive beams, and resource identifiers.
- the above angle may be a decomposition value of different dimensions, or a combination of decomposition values of different dimensions.
- Antenna ports are antenna ports with different antenna port numbers, and/or, antenna ports with the same antenna port number that transmit or receive information in different time and/or frequency and/or code domain resources, and/or, have different antenna ports
- the antenna port number is the antenna port that transmits or receives information in different time and/or frequency and/or code domain resources.
- Resource identifiers may include: CSI-RS resource identifiers, or SRS resource identifiers, or SSB resource identifiers, or resource identifiers of preamble sequences transmitted on a physical random access channel (PRACH), or a demodulation reference signal ( demodulation reference signal, DMRS) resource identifier, used to indicate the beam on the resource.
- CSI-RS resource identifiers or SRS resource identifiers, or SSB resource identifiers, or resource identifiers of preamble sequences transmitted on a physical random access channel (PRACH), or a demodulation reference signal ( demodulation reference signal, DMRS) resource identifier, used to indicate the beam on the resource.
- PRACH physical random access channel
- DMRS demodulation reference signal
- the QCL relationship can be divided into the following four types based on different parameters:
- Type A Doppler shift, Doppler spread, average delay, delay spread;
- Type B Doppler shift, Doppler spread
- Type C Doppler shift, average delay
- Type D The space receives parameters.
- the QCL involved in the embodiments of the present application is a type D QCL.
- the QCL may be understood as a QCL of type D, that is, a QCL defined based on spatial reception parameters.
- the QCL relation refers to the QCL relation of type D, it can be considered as a spatial QCL.
- the QCL relationship between the port of the downlink signal and the port of the downlink signal, or between the port of the uplink signal and the port of the uplink signal can be that the two signals have the same AOA or AOD, using to indicate having the same receive beam or transmit beam.
- the AOA and AOD of the two signals can have a corresponding relationship, or the AOD and AOA of the two signals have a corresponding relationship, that is, the beam can be used. Reciprocity, the uplink transmit beam is determined based on the downlink receive beam, or the downlink receive beam is determined based on the uplink transmit beam.
- the transmitting end if two antenna ports are spatially QCL, it may mean that the corresponding beam directions of the two antenna ports are spatially consistent. From the perspective of the receiving end, if the two antenna ports are QCL in the spatial domain, it may mean that the receiving end can receive the signals sent by the two antenna ports in the same beam direction.
- the signal transmitted on the port with the spatial QCL relationship may also have a corresponding beam, and the corresponding beam includes at least one of the following: the same receive beam, the same transmit beam, and the transmit beam corresponding to the receive beam (corresponding to a reciprocal beam). scene), the receive beam corresponding to the transmit beam (corresponding to the scene with reciprocity).
- a signal transmitted on a port with a spatial QCL relationship can also be understood as using the same spatial filter to receive or transmit a signal.
- the spatial filter can be at least one of the following: precoding, weight of antenna ports, phase deflection of antenna ports, and amplitude gain of antenna ports.
- the signal transmitted on the port with the spatial QCL relationship can also be understood as having a corresponding beam pair link (BPL), and the corresponding BPL includes at least one of the following: the same downlink BPL, the same uplink BPL, and the downlink BPL The corresponding upstream BPL, and the downstream BPL corresponding to the upstream BPL.
- BPL beam pair link
- the spatial reception parameter ie, the QCL of type D
- the spatial reception parameter can be understood as a parameter for indicating the direction information of the reception beam.
- the spatial relationship may also be referred to as an uplink transmission configuration indicator (UL TCI).
- UL TCI uplink transmission configuration indicator
- the spatial relationship can be used to determine the transmit beam for uplink signals. This spatial relationship can be determined by beam training.
- the reference signal used for beam training may be, for example, an uplink reference signal, such as SRS, or a downlink reference signal, such as SSB or CSI-RS.
- the terminal device may determine the transmit beam based on the spatial relationship indicated by the network device, and the network device may determine the receive beam based on the same spatial relationship.
- the spatial relationship may also include related parameters of uplink transmission power control, including one or more of the following: a path loss estimation reference signal (Pathloss Reference RS), reference power, compensation coefficient (Alpha), open loop or closed loop Power control indication, closed loop power control number (closedLoopIndex), etc.
- a path loss estimation reference signal Pathloss Reference RS
- reference power reference power
- compensation coefficient Alpha
- open loop or closed loop Power control indication open loop or closed loop Power control indication
- closed loop power control number closedLoopIndex
- SR is configured by network equipment to each terminal equipment, the following is a format of SR.
- Control resource set (CORESET)
- a CORESET resource set for transmitting downlink control information may also be referred to as a control resource region, or a physical downlink control channel resource set.
- Each CORESET may be a set of resource element groups (REGs).
- REG is a basic unit for downlink control signaling to allocate physical resources, and is used to define the mapping of downlink control signaling to REs.
- one REG may be composed of four consecutive non-reference signal (reference signal, RS) resource elements (resource elements, REs) in the frequency domain.
- RS non-reference signal
- REs resource elements
- a CORESET can be understood as a set of resources that may be used for sending PDCCH; for a terminal device, the resources corresponding to the search space of the PDCCH of each terminal device belong to the CORESET.
- the network device may determine the resource used for sending the PDCCH from the CORESET, and the terminal device may determine the search space of the PDCCH according to the CORESET.
- the CORESET may include time-frequency resources, for example, it may be a segment of bandwidth, or one or more subbands in the frequency domain; it may be one or more symbols in the time domain; a control resource set may be continuous in the time-frequency domain Or discontinuous resource units, such as continuous resource blocks (resource blocks, RBs) or discontinuous RBs.
- the CORESET may also include a TCI state (TCI-state).
- CORESET may include multiple TCI-states, and the activated TCI-state may be one of the multiple TCI-states.
- the resource used to transmit the PDCCH may specifically use one of the multiple TCI-states.
- Which TCI-state to use is specified by the network device. For example, the network device sends a MAC-CE to the terminal device, and the MAC-CE carries a TCI-state index, and the TCI-state index is used to indicate that the PDCCH corresponding to the CORESET adopts the TCI-state.
- the network device can also modify the TCI-state of the PDCCH through the MAC-CE.
- the network device can configure one or more CORESETs for the terminal device to transmit different types of PDCCH.
- CORESET can be configured through the ControlResourceSet information element in the high-level parameters.
- the high-layer parameters may include, for example, an identifier (identifier, ID) of the CORESET, frequency domain resources, the number of symbols included in the duration (duration), and the like. This application does not limit the specific parameters for configuring CORESET.
- the TCI-state is configured by the network device to each terminal device. TCI-state can be used to indicate the QCL relationship between the two reference signals.
- Each TCI-state may include a serving cell index (ServeCellIndex), a bandwidth part (band width part, BWP) identifier (identifier, ID), and a reference signal resource identifier.
- ServeCellIndex serving cell index
- BWP bandwidth part
- ID bandwidth part
- reference signal resource identifier identifier, ID
- the reference signal resource identifier may be, for example, at least one of the following: a non-zero power (non-zero power, NZP) CSI-RS reference signal resource identifier (NZP-CSI-RS-ResourceId), a non-zero power CSI-RS reference signal Resource set identifier (NZP-CSI-RS-ResourceSetId) or SSB index (SSB-Index).
- NZP non-zero power
- NZP-CSI-RS-ResourceId CSI-RS reference signal resource identifier
- NZP-CSI-RS-ResourceSetId non-zero power CSI-RS reference signal Resource set identifier
- SSB-Index SSB index
- the information of the transmit beam (ie, the transmit beam of the network device or the receive beam of the terminal device) can be indicated by TCI-state.
- Each TCI-state includes an own index (tci-StateId) and two QCI information (QCI information, QC1-Info).
- Each QCl-Info may include a reference signal resource (referenceSignal), which indicates that the resource using the TCI-state forms a QCL relationship with the reference signal resource included in the QCL-Info. For example, if a TCI-state is configured for resource 1, and the resource included in the QCL-Info included in the TCI-state is resource 2, it means that resource 1 and resource 2 are QCL.
- the TCI-state is configured by the network device to each terminal device.
- the following is a format of the TCI-state.
- the terminal device may determine the receiving beam based on the TCI-state indicated by the network device, and the network device may determine the transmitting beam based on the same TCI-state.
- TCI-state can be configured globally. In TCI-states configured for different cells (cells) and different BWPs, if the indices of the TCI-states are the same, the configurations of the corresponding TCI-states are also the same.
- the cell is described by the upper layer from the perspective of resource management or mobility management or serving unit.
- the coverage of each network device can be divided into one or more serving cells, and the serving cells can be regarded as composed of certain frequency domain resources.
- "cell” and "serving cell” may be used interchangeably, and the meanings to be expressed are the same when the difference is not emphasized.
- TCI can be used to indicate TCI-state.
- the network device may configure a TCI-state list (list) for the terminal device through high-level signaling (such as radio resource control (RRC)).
- RRC radio resource control
- the network device may use the TCI in the RRC message -state add mode list (tci-StatesToAddModList) to configure the TCI-state list for end devices.
- the TCI-state list may include multiple TCI-states, for example, the network device may configure a maximum of 64 TCI-states for each BWP in each cell.
- the network device may activate one or more TCI-states through higher-layer signaling (eg, medium access control-control element (MAC-CE)).
- the activated TCI-state is a subset of the TCI-state list configured in the above RRC message.
- the network device may activate up to 8 TCI-states for each BWP in each cell.
- the network device may also indicate a selected TCI-state through the TCI field in physical layer signaling (eg, downlink control information (DCI)).
- DCI downlink control information
- the DCI may be suitable for scheduling the DCI of physical downlink resources.
- the configuration information of one TCI-state may include the identifiers of one or two reference signal resources, and the associated QCL type.
- the terminal device can demodulate the physical downlink control channel (PDCCH) or the physical downlink shared channel (physical downlink shared channel) according to the indication of the TCI-state. downlink shared channel, PDSCH).
- the terminal device can know which transmit beam the network device uses to transmit signals, and then can determine which receive beam to use to receive signals according to the beam pairing relationship determined by the channel measurement described above.
- the terminal device can determine the receiving beam for receiving the PDSCH according to the TCI field in the DCI on the PDCCH.
- a single TRP cell also known as a cell using a single TRP transmission.
- a single TRP cell includes only one TRP, and the network side implements data transmission of the cell through one TRP.
- the network side may configure one or more single TRP cells for the terminal device, and each single TRP cell corresponds to a set of configuration information, including one beam failure detection resource group and one candidate beam resource group. It can be understood that, in a single TRP cell, only a single beam failure detection resource group and a single candidate beam resource group are needed to implement beam failure recovery in the cell. It should be understood that TRP is a network device.
- cell #1 is a cell that uses a single TRP (TRP #1) for transmission, and the network side transmits data of cell #1 to a terminal device through this TRP #1.
- TRP #1 TRP
- the network side transmits data of cell #1 to a terminal device through this TRP #1.
- TRP cell TRP cell.
- the number of beam failure detection resource groups and the number of candidate beam resource groups configured to the terminal device are both one.
- a multi-TRP cell is also called a cell using multiple TRP transmissions.
- a multi-TRP cell includes multiple TRPs, and the network side implements data transmission of the cell through the multiple TRPs.
- the network side may configure one or more multi-TRP cells for the terminal device, and each multi-TRP cell corresponds to a set of configuration information, which includes multiple beam failure detection resource groups and multiple candidate beam resource groups. It can be understood that, in a multi-TRP cell, multiple beam failure detection resource groups and multiple candidate beam resource groups are required to implement beam failure recovery of the cell.
- cell #1 adopts two TRPs (TRP1#1 and TRP#2), and the network side transmits the data of cell #1 to a terminal device through TRP#1 and TRP#2. At this time, it can be considered that the cell #1 is a multi-TRP cell. At this time, the number of beam failure detection resource groups and the number of candidate beam resource groups configured to the terminal device are both two.
- the embodiments of the present application may be applied to beam-based communication systems, for example, fifth generation (5th generation, 5G) systems, new radio (NR), long term evolution (LTE) systems, LTE frequency division dual A frequency division duplex (FDD) system, an LTE time division duplex (TDD), a universal mobile telecommunication system (UMTS) or other evolved communication systems, etc.
- 5G fifth generation
- NR new radio
- LTE long term evolution
- FDD frequency division dual A frequency division duplex
- TDD LTE time division duplex
- UMTS universal mobile telecommunication system
- the communication system to which the embodiments of this application are applied may include one or more network devices and one or more terminal devices.
- a network device can transmit data or control signaling to one or more terminal devices.
- multiple network devices may simultaneously transmit data or control signaling for one terminal device.
- FIG. 1 is a schematic diagram of a communication system 100 applicable to this embodiment of the present application.
- the communication system 100 includes a network device 110 and a plurality of terminal devices 120 (the terminal device 120a and the terminal device 120b as shown in FIG. 1 ).
- the network device 110 can transmit multiple analog beams simultaneously through multiple radio frequency channels to transmit data or control signaling for multiple terminal devices.
- the network device simultaneously transmits beam 1 and beam 2, wherein beam 1 is used to transmit data or control signaling for terminal device 120a, and beam 2 is used to transmit data or control signaling for terminal device 120b.
- Beam 1 may be referred to as the serving beam for terminal device 120a
- beam 2 may be referred to as the serving beam for terminal device 120b.
- Terminal device 120a and terminal device 120b may belong to the same cell. It can be understood that the above communication system 100 is a scenario of a single TRP transmission.
- FIG. 2 is a schematic diagram of a communication system 200 applicable to this embodiment of the present application.
- the communication system 200 may include at least two network devices (such as the network device 210a and the network device 210b shown in FIG. 2), and the communication system 200 may also include at least one terminal device, for example, as shown in FIG. 2 Terminal device 220 is shown.
- the terminal device 220 may establish a wireless link with the network device 210a and the network device 210b through a dual connectivity (dual connectivity, DC) technology or a multi-connection technology.
- the network device 210a may be, for example, a primary base station
- the network device 210b may be, for example, a secondary base station.
- the network device 210a is the network device when the terminal device 220 initially accesses, and is responsible for the radio resource control (RRC) communication with the terminal device 220, and the network device 210b may be added during RRC reconfiguration , which is used to provide additional radio resources.
- RRC radio resource control
- FIG. 1 and FIG. 2 are for illustration only, and do not constitute any limitation to the communication system applicable to the embodiments of the present application.
- the terminal equipment in the embodiments of the present application may also be referred to as: user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), access terminal, subscriber unit, subscriber station, Mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user equipment, etc.
- user equipment user equipment
- MS mobile station
- MT mobile terminal
- access terminal subscriber unit, subscriber station, Mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user equipment, etc.
- the terminal device may be a device that provides voice/data connectivity to the user, such as a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
- some examples of terminals are: mobile phone (mobile phone), tablet computer, notebook computer, PDA, mobile internet device (MID), wearable device, virtual reality (virtual reality, VR) device, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart grids wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, cellular phone, cordless phone, session initiation protocol Session initiation protocol (SIP) telephones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices, or other devices connected to wireless modems Processing equipment, vehicle-mounted equipment, wearable equipment, terminal equipment in a 5G network, or terminal equipment in a public land mobile network (PLMN) evolved in the future, etc., are not
- the terminal device may also be a wearable device.
- Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
- a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
- wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
- the terminal device may also be a terminal device in an Internet of Things (IoT) system.
- IoT Internet of Things
- IoT is an important part of the future development of information technology, and its main technical feature is that items pass through communication technology Connect with the network, so as to realize the intelligent network of human-machine interconnection and interconnection of things.
- the network device in this embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be referred to as an access network device or a wireless access network device.
- the names of network devices may be different.
- network devices may be transmission reception points (TRPs) or evolved base stations in LTE systems ( evolved NodeB, eNB, or eNodeB), can also be a home base station (for example, home evolved NodeB, or home Node B, HNB), a base band unit (base band unit, BBU), and can also be a cloud radio access network (cloud radio access network).
- TRPs transmission reception points
- eNB evolved NodeB
- eNodeB evolved NodeB
- eNodeB evolved NodeB
- HNB home evolved NodeB
- BBU base band unit
- cloud radio access network cloud radio access network
- the wireless controller in the scenario of network, CRAN can also be the base transceiver station (Base Transceiver in the global system for mobile communication, GSM) or code division multiple access (code division multiple access, CDMA) network Station, BTS), or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a 5G network or a network device in a future evolved PLMN network, etc., and can be an access point in a WLAN (access point, AP), which may be a gNB in a new radio system (new radio, NR) system, which is not limited in this embodiment of the present application.
- GSM Global System for mobile communication
- CDMA code division multiple access
- BTS code division multiple access
- the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a 5G network or a network device in a future evolved PLMN network, etc.
- AP access point
- a network device may include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node, or a control plane CU node (CU).
- CU centralized unit
- DU distributed unit
- RAN device including a CU node and a DU node, or a control plane CU node (CU).
- CU-UP nodes user plane CU nodes
- the network equipment provides services for the cell, and the terminal equipment communicates with the cell through transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network equipment, and the cell may belong to a macro base station (for example, a macro eNB or a macro gNB, etc.) , can also belong to the base station corresponding to the small cell, where the small cell can include: urban cell (metro cell), micro cell (micro cell), pico cell (pico cell), femto cell (femto cell), etc. , these small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
- a macro base station for example, a macro eNB or a macro gNB, etc.
- the small cell can include: urban cell (metro cell), micro cell (micro cell), pico cell (pico cell), femto cell (femto cell), etc.
- these small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission
- the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
- the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
- FIG. 3 is a schematic diagram of a hardware structure of a network device and a terminal device provided by an embodiment of the present application.
- the terminal device includes at least one processor 101 , at least one memory 102 and at least one transceiver 103 .
- the processor 101, the memory 102 and the transceiver 103 are connected by a bus.
- the processor 101 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more modules for controlling the execution of the programs of the present application. integrated circuit.
- the processor 101 may also include multiple CPUs, and the processor 101 may be a single-CPU processor or a multi-CPU processor.
- a processor herein may refer to one or more devices, circuits, or processing cores for processing data (eg, computer program instructions).
- the memory 102 may be read-only memory (ROM) or other type of static storage device that can store static information and instructions, random access memory (RAM), or other type of static storage device that can store information and instructions It can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc-only memory (CD-ROM), or other optical-disc storage, optical-disc storage (including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being stored by a computer Any other medium taken, this embodiment of the present application does not impose any limitation on this.
- ROM read-only memory
- RAM random access memory
- EEPROM electrically erasable programmable read-only memory
- CD-ROM compact disc-only memory
- optical-disc storage including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.
- the memory 102 may exist independently and be connected to the processor 101 through a bus.
- the memory 102 may also be integrated with the processor 101 .
- the memory 102 is used for storing the application program code for executing the solution of the present application, and the execution is controlled by the processor 101 .
- the processor 101 is configured to execute the computer program codes stored in the memory 102, so as to implement the methods provided by the embodiments of the present application.
- Transceiver 103 includes transmitter 1031 and receiver 1032 .
- the transceiver 103 may use any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), and the like.
- RAN radio access network
- WLAN wireless local area networks
- the terminal device may further include an output device and an input device (not shown in FIG. 3 ).
- the output device communicates with the processor 101 and can display information in various ways.
- the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector), etc.
- the input device communicates with the processor 101 and can receive user input in a variety of ways.
- the input device may be a mouse, a keyboard, a touch screen device, or a sensor device, or the like. Input and output respectively correspond to receiving and sending in the method embodiment.
- the network device includes at least one processor 201 , at least one memory 202 and at least one transceiver 203 .
- the processor 201, the memory 202 and the transceiver 203 are connected by a bus.
- the description of the processor 201, the memory 202 and the transceiver 203 reference may be made to the description of the processor 101, the memory 102 and the transceiver 103 in the terminal device, and details are not repeated here.
- FIG. 4 is a schematic diagram of the format of a MAC CE suitable for a beam failure recovery method.
- the format of the existing MAC CE is introduced by taking the network equipment configuring 8 cells for a terminal device, and each cell is configured with 1 beam failure detection resource group and 1 candidate beam resource group as an example.
- each of the 8 cells is configured with 1 beam failure detection resource group and 1 candidate beam resource group, that is to say, the 8 cells are all cells with a single TRP.
- the MAC CE shown in FIG. 4 includes a bitmap and 8 bits in the bitmap, and the 8 bits are respectively marked as: C 0 , C 1 , C 2 , C 3 , C 4 , C 5 , C 6 and C 7 , these 8 bits correspond to 8 cells one-to-one. If the cell corresponding to any bit is a single TRP cell with beam failure, then there is 1 byte corresponding to any bit in the MAC CE. If the cell corresponding to any bit is a single TRP cell without beam failure TRP cell, then there is no 1 byte corresponding to any bit in the MAC CE.
- the 1 byte may include: AC field, R field and alternative RS ID field, where the AC field is used to indicate whether there is a quality requirement.
- Alternative beam resources the R field is a reserved field and has no specific meaning; the alternative RS ID field is used to indicate the index of the alternative beam resources.
- the candidate RS ID field is empty. For example, when the AC field is equal to 0, indicating that there is no candidate beam resource that meets the quality requirement, the candidate RS ID field is empty.
- the alternative RS ID field indicates the identity of the new available beam.
- any bit in the bitmap included in the definition MAC CE is equal to 1, it means that the cell with a single TRP corresponding to the arbitrary bit has a beam failure, and defining any bit equal to 0 means that the cell with a single TRP corresponding to the arbitrary bit fails.
- a beam failure has occurred.
- the terminal device determines that a beam failure has occurred in the single TRP cell corresponding to the second bit C 1 in the 8 bits, and C 1 is equal to 1, then there is 1 byte corresponding to the second bit C 1 in the MAC CE.
- the 1 byte may include the AC field, the R field and the alternative RS ID field, or the 1 byte may include the AC field and the R field.
- the MAC CE format shown in Figure 4 is only applicable to the reporting of beam failure recovery information of a single TRP cell, but not applicable to the reporting of beam failure recovery information of multiple TRP cells. That is to say, the existing beam failure recovery method and the existing MAC CE format are applied to the communication system including multi-TRP cells, when beam failure occurs in the multi-TRP cells, the existing method cannot perform the relevant beam failure recovery information. report.
- the embodiment of the present application provides a beam failure recovery method, which can be applied to a communication system including a multi-TRP cell and a single-TRP cell, and the method can recover the beam failure in time.
- the beam failure recovery method provided by the embodiment of the present application will be described in detail with reference to FIG. 5 to FIG. 16 .
- the names of messages between network elements or the names of parameters or fields in the messages in the embodiments of the present application are just an example, and other names may also be used in the specific implementation. This is not specifically limited.
- FIG. 5 is a schematic diagram of a beam failure recovery method 500 provided by an embodiment of the present application.
- the method 500 includes steps 510 to 530 , and the steps 510 to 530 will be described in detail below.
- the method 500 may be, but is not limited to, applied to the communication system shown in FIG. 2 above.
- the execution body of the method 500 may include the terminal device 220 in FIG. 2 , and the network device 210 a and the network device 210 b in FIG. 2 .
- Step 510 The terminal device receives the configuration information of the cell sent by the network device.
- the configuration information of the cell includes M beam failure detection resource groups and M alternative beam resource groups, and M beam failure detection resource groups and M alternative beam resources The groups correspond one-to-one, and M is an integer.
- the above-mentioned M beam failure detection resource groups and M candidate beam resource groups may be understood as resources configured by the network device to the same terminal device in the cell.
- M is equal to 1.
- the terminal device in step 510 above is the terminal device 120b in FIG. 1
- the one beam failure detection resource group is used to detect whether the network device 110 has a beam failure.
- M is greater than 1, for example, when M is equal to 2, in conjunction with FIG. 2, for example, when the terminal device in the above step 510 is the terminal device 220 in FIG.
- the configuration information of the cell includes 2 beam failure detection resource groups (ie Beam failure detection resource group #1 and beam failure detection resource group #2) and 2 alternative beam resource groups (ie, alternative beam resource group #1 and alternative beam resource group #2), beam failure detection resource group #1 and the candidate beam resource group #1 may correspond to the network device 210a, and the beam failure detection resource group #2 and the candidate beam resource group #2 may correspond to the network device 210b.
- the beam failure detection resource group #1 is used for detecting whether a beam failure occurs in the network device 210a
- the beam failure detection resource group #2 is used for detecting whether a beam failure occurs in the network device 210b.
- the above-mentioned two beam failure detection resource groups and two candidate beam resource groups may be delivered to the terminal device 220 through the RRC signaling of the network device 210a, or may be issued to the terminal device through the RRC signaling of the network device 210b. 220's.
- the configuration information of the cell includes M beam failure detection resource groups and M candidate beam resource groups, each beam failure detection resource group may include S beam failure detection resources, and each candidate beam resource group may include Q beam failure detection resources
- each beam failure detection resource group may include S beam failure detection resources
- each candidate beam resource group may include Q beam failure detection resources
- Candidate beam resources each beam failure detection resource is used for beam failure detection
- each candidate beam resource is used to identify a new available beam
- S and Q are integers greater than or equal to 1.
- One candidate beam resource group and its corresponding beam failure detection resource group can be used for beam failure recovery of one TRP.
- the specific values of S and Q may be configured by the network device, or the specific values of S and Q may also be reported by the terminal device to the network device through the terminal capability, which is not specifically limited.
- the manner of one-to-one correspondence between the M beam failure detection resource groups and the M candidate beam resource groups is not specifically limited.
- the beam failure detection resource group with the same index may correspond to the candidate beam resource group.
- the kth beam failure detection resource group may correspond to the kth candidate beam resource group in a configuration order.
- the indexes of the resources in the above-mentioned M candidate beam resource groups may adopt independent numbers within the resource groups. For example, when M is equal to 2, the configuration information of the cell includes two candidate beam resource groups, and each candidate beam resource group includes 4 resources. The numbers of the four candidate beam resources in each candidate beam resource group may all be ⁇ #0, #1, #2, #3 ⁇ .
- the indexes of the resources in the M candidate beam resource groups are numbered jointly across resource groups.
- the configuration information of the cell includes two candidate beam resource groups, and each candidate beam resource group includes 4 candidate beam resources.
- the numbers of the 4 resources in the first candidate beam resource group may be ⁇ #0, #1, #2, #3 ⁇ , and the numbers of the 4 resources in the second candidate beam resource group may be ⁇ # 4, #5, #6, #7 ⁇ .
- the total number of resources in the two candidate beam resource groups is 128, and the number of resources in each candidate beam resource group is equal to 64.
- the number of resources in all candidate beam resource groups is equal.
- the total number of resources in the two candidate beam resource groups is 64, and the number of resources in one candidate beam resource group is at most 63.
- the total number of resources in the two candidate beam resource groups is 128, and the number of resources in one candidate beam resource group is at most 127.
- the cell in the foregoing step 510 may be any one of the following two types of cells:
- Cell type 1 a single TRP cell, in which a single TRP cell only needs to use a single beam failure detection resource group and a single candidate beam resource group to perform beam failure recovery.
- the above cell can be understood as a single TRP cell. That is to say, if the network device only configures one beam failure detection resource group and one candidate beam resource group for the cell, it can be considered that the cell is a single TRP cell, where the cell is the cell serving the terminal device, and the cell is a single TRP cell. Only one TRP that communicates with the terminal device is included in the cell.
- single TRP cell and “cell configured with a single beam failure detection resource group”, “cell configured with a single candidate beam resource group”, “configured with a single CORESET group”, or “configured with a single CORESET group”
- the single beam failure detection timer/counter these descriptions are equivalent to each other.
- Cell type 2 a multi-TRP cell, wherein a multi-TRP cell needs to use multiple (two or more) beam failure detection resource groups and multiple candidate beam resource groups for beam failure recovery.
- the above cell can be understood as a multi-TRP cell. That is, if the network device configures M beam failure detection resource groups and M candidate beam resource groups for the cell, and M is an integer greater than 1, then the cell can be considered as a multi-TRP cell, where the cell is A cell serving a terminal device, and the cell includes M TRPs that communicate with the terminal device.
- the cell is a multi-TRP cell.
- the downlink signal in the cell is simultaneously sent to the terminal device through multiple TRPs.
- the multiple TRPs can be regarded as one network device at the same time, or the Consider the multiple TRPs as multiple transmitters for the entire network device.
- multiple TRPs are used
- multiple beam failure detection resource groups are configured
- multiple alternative beam resource groups are configured
- multiple CORESET groups are configured
- configured multiple beam failure detection timers/counters these descriptions are equivalent to each other.
- the configuration information of a cell is a resource configured by a network device (for example, a base station) to a terminal device in the cell. If the network device only configures one cell for the terminal device, the configuration information sent by the network device to the terminal device includes the configuration information of the one cell, and the configuration information of the above cell can be understood as the configuration of the one cell information. In other words, when the above-mentioned terminal equipment receives the configuration information of the cell, it can be understood that the terminal equipment receives the configuration information from the network equipment.
- a carrier aggregation carrier aggregation, CA
- a network device usually configures multiple cells (ie, serving cells) for a terminal device.
- the configuration information sent by the network device to the terminal device includes the configuration information of the K cells, and the configuration information of the above cells can be understood as The configuration information of one cell in the configuration information of the K cells.
- the terminal device receives the configuration information of the cell, it can be understood that the terminal device receives the configuration information from the network device, and obtains the configuration information of the cell from the configuration information.
- some cells are single-TRP cells, and some cells are multi-TRP cells, which are not specifically limited.
- one of the K cells is a single-TRP cell, it is only necessary for the network device to configure a single beam failure detection resource group and a single candidate beam resource group for the one cell. If one of the K cells is a multi-TRP cell, the network device is required to configure multiple beam failure detection resource groups and multiple candidate beam resource groups for the one cell.
- a network device configures 8 cells (see Table 1 below) for the same terminal device.
- these 8 cells are respectively recorded as cell 1, cell 2, and cell 3.
- each of cell 1, cell 2, cell 3 and cell 4 is a cell using two TRP transmissions (that is, an example of a multi-TRP cell), and the TRP is required for each of the four cells.
- Cell 1 includes 2 TRPs that communicate with the same terminal equipment.
- the beam failure detection resource group configured for the terminal equipment is The number of resource groups is equal to 2, and the number of candidate beam resource groups allocated to the terminal device is also equal to 2.
- Cell 5, Cell 6, Cell 7, and Cell 8 are all single TRP cells, and the network device is required to configure a single beam failure detection resource group and a single candidate beam resource group for each of the four cells. Take cell 5 as an example to introduce how TRP allocates resources in a multi-single cell.
- the cell 5 includes one TRP that communicates with the same terminal device, and the one TRP configures one beam failure detection resource group and one candidate beam resource group for the terminal device.
- the configuration information of the cell may further include scheduling request (scheduling request, SR) resources.
- SR scheduling request
- the network device configures multiple cells for a terminal device, and at least one of the multiple cells is a multi-TRP cell (for example, cell 1 in Table 1), at this time, the network device needs to configure multiple cells for the terminal device.
- SR resources, and the multiple SR resources are in one-to-one correspondence with multiple TRPs, or the network device configures one SR resource, but the one SR resource has multiple spatial relation parameters (ie, uplink transmit beams).
- all cells configured by the network device for the terminal device are single TRP cells (for example, cell 6 in Table 1), at this time, the network device only needs to configure one SR resource, and the one SR resource has only a single spatial relation )parameter.
- the manner in which the network device configures the configuration information of the cell to the terminal device is not specifically limited.
- the network device may configure information to the terminal device in an explicit manner, for example, the network device may also configure information to the terminal device in an implicit manner.
- the following is an example of how a network device configures a beam failure detection resource group to a terminal device:
- the configuration information includes M beam failure detection resource groups, and each beam failure detection resource group in the M beam failure detection resource groups includes one or more beam failure detection resources.
- the first mode can be understood as that the network device configures the beam failure detection resource group to the terminal device in an explicit manner.
- each beam failure detection resource group in the configuration information may be configured in the following form:
- RadioLinkMonitoringRSSet Beam Failure Detection Resource Set
- Beam failure detection resource group index for example, RadioLinkMonitoringRSSetID
- Beam failure detection resource list for example, RadioLinkMonitoringRSList
- the beam failure detection resource group index is used to identify the beam failure detection resource group, and the beam failure detection resource list includes M beam failure detection resources.
- the configuration information includes M CORESET groups, or includes K CORESET groups constituting M CORESET groups, where K is a positive integer greater than or equal to M.
- the second way can be understood as that the network device implicitly configures the beam failure detection resource group to the terminal device.
- the QCL resource of the CORESET in each CORESET group is used as a beam failure detection resource group.
- the QCL resources of all CORESETs in a CORESET group may be used as a beam failure detection resource group.
- CORESET QCL resources in the CORESET group may be limited to be used as a beam failure detection resource group.
- the K CORESETs with the smallest or largest index may be used, or the first K CORESETs or the last K CORESETs may be used according to the CORESET configuration order.
- the above-mentioned QCL resource may be a QCL resource of type A, typeB, typeC or typeD.
- K and M may be configured by the network device, or reported by the terminal device to the network device through the terminal capability.
- the resources used for beam failure detection are only exemplary, and the resources used for beam failure detection are called beam failure detection resources, and the resources used for identifying new available beams are called alternative beam resources.
- the resources used for beam failure detection and/or the resources used for identifying new available beams may also have other names, and the embodiments of the present application do not specifically limit the names of the above two types of resources.
- Step 520 The terminal device performs beam failure detection.
- the beam failure detection resource group #1 can be understood as being any beam failure detection resource group among the M beam failure detection resource groups in the above step 510, and the beam failure detection resource group among the M candidate beam failure detection resource groups is the same as the beam failure detection resource group.
- the candidate beam resource group corresponding to #1 is the candidate beam resource group #1.
- the terminal device may measure each beam failure detection resource in the beam failure detection resource group #1, and when the quality of each beam failure detection resource is lower than the first threshold value, the terminal device determines the Beam failure detection A beam failure occurs in resource group #1.
- the configuration information of the cell includes M beam failure detection resource groups and M candidate beam resource groups, and M is an integer greater than 1.
- the terminal device determines that a beam failure has occurred in at least one beam failure detection resource group in the M beam failure detection resource groups. It can be understood that when M is greater than 1, the cell is a multi-TRP cell. In this case, only one beam failure detection resource group in the above-mentioned M beam failure detection resource groups detects that a beam failure has occurred, and the terminal device can It is determined that beam failure occurs in this cell.
- the configuration information of the cell includes M beam failure detection resource groups and M candidate beam resource groups, and M is equal to 1.
- the terminal device After performing the beam failure detection on each of the M beam failure detection resource groups, the terminal device determines that a beam failure has occurred in the M beam failure detection resource groups. It can be understood that when M is equal to 1, the cell is a single TRP cell, and beam failure is detected in the above M beam failure detection resource groups, that is, the terminal device detects 1 beam failure detection resource group configured for the cell. until beam failure occurs.
- the above-mentioned M beam failure detection resource groups correspond to M TRPs, and are respectively used to detect whether beam failures occur in the M TRPs. Therefore, detecting the occurrence of beam failure from a certain beam failure resource group is equivalent to the occurrence of beam failure in the TRP corresponding to the beam failure detection resource group.
- beam failure detection resource group #1 corresponds to TRP #1, and beam failure is detected from beam failure detection resource group #1, which is equivalent to the occurrence of beam failure in TRP #1.
- Step 530 when M is an integer greater than 1, and a beam failure occurs in at least one beam failure detection resource group in the M beam failure detection resource groups, the terminal device sends the beam failure recovery information corresponding to the cell through the first MAC CE.
- M is an integer greater than 1, and the above cell can be understood as a multi-TRP cell.
- the terminal device can send the cell through the first MAC CE. Corresponding beam failure recovery information.
- the configuration information of the cell includes 2 beam failure check resource groups and 2 candidate beam resource groups. If the terminal device detects that a beam failure occurs in one of the two beam failure check resource groups, the terminal device can send the beam failure recovery information corresponding to the cell through the first MAC CE. Alternatively, if the terminal device detects that beam failures have occurred in the two beam failure check resource groups, the terminal device may also send beam failure recovery information corresponding to the cell through the first MAC CE.
- the beam failure detection resource group #1 includes k resources in total, and when the k resources are all lower than the preset threshold, it can be considered that beam failure occurs in the beam failure detection resource group #1, and k is an integer.
- the beam failure detection resource group #1 when a beam failure occurs in a beam failure detection resource group, it can also be understood that some resources in the beam failure detection resource group are lower than a preset threshold value.
- the beam failure detection resource group #1 includes a total of 6 resources, and when 4 of the 6 resources are all lower than the preset threshold, it can be considered that beam failure occurs in the beam failure detection resource group #1.
- the beam failure detected in at least one beam failure check resource group can be subdivided into the following two cases:
- Case 1 In the M (M>1) beam failure detection resource groups of the cell, a beam failure is detected in some beam failure detection resource groups.
- the first MAC CE can be used to send the beam failure recovery information corresponding to the cell.
- This method can be applied to but not limited to the following cells: the cell is the primary cell (primary cell, Pcell), the cell is the primary cell (primary SCG cell, PScell) in the secondary cell group, and the cell is the secondary cell (secondary cell, Scell) ).
- the SCG (secondary cell group) may be a secondary cell group in the two configured cell groups.
- the other cell group is the master cell group (MCG).
- Case 2 In M (M>1) beam failure detection resource groups of a cell, beam failures are detected in all beam failure detection resource groups, and the information on how to recover from beam failures depends on the cell type. If the cell is a Scell, the first MAC CE may be used to send beam failure recovery information corresponding to the cell. If the cell is a Pcell, a random access procedure may be used to send beam failure recovery information corresponding to the cell. If the cell is a PScell, the first MAC CE can be used to send the beam failure recovery information corresponding to the cell, or the random access procedure can be used to send the beam failure recovery information corresponding to the cell.
- the terminal device when the cell is a multi-TRP cell, the terminal device sends the beam failure recovery information corresponding to the cell through the first MAC CE.
- the beam failure recovery information corresponding to the cell may include the following information: the beam failure recovery information corresponding to the beam failure detection resource group in which the beam failure is detected in the M beam failure detection resource groups, and the beam failure recovery information not detected in the M beam failure detection resource groups Information about the beam failure detection resource group in which the beam failure occurred.
- the beam failure recovery information corresponding to the beam failure detection resource group in which the beam failure is detected in the M beam failure detection resource groups includes at least: information.
- the beam failure recovery information corresponding to the beam failure detection resource group in which the beam failure is detected in the M beam failure detection resource groups may also include: whether there is an alternative beam that meets the requirements of the beam failure detection resource group in which the beam failure occurs. resource.
- the beam failure recovery information corresponding to the beam failure detection resource group in which the beam failure is detected in the M beam failure detection resource groups may further include: the beam failure detection in the M beam failure detection resource groups where the beam failure is detected Information about the candidate beam resource group corresponding to the resource group.
- the beam failure recovery information corresponding to the cell may include the following information: beam failure recovery information corresponding to the beam failure detection resource group in which beam failure is detected in the M beam failure detection resource groups, and M beam failure detection resource groups The information of the beam failure detection resource group in which the beam failure has not been detected.”
- the format of the first MAC CE of the first type provided in the embodiment of the present application is introduced.
- the format of the first MAC CE of the first type is the format of the first MAC CE of the first type:
- the first type of first MAC CE provided by this embodiment of the present application includes: a bitmap, where the one bitmap may include P bits (bits), and at least one bit (that is, the bitmap) in the one bitmap At least one field in the bitmap) corresponds to a cell configured by the network device to the terminal device, and the value of this bit may be equal to 0 or 1. That is to say, there may be some bits in the above P bits that do not correspond to any cell, and no special design is made in this application for the bits that do not correspond to any cell. In some implementations, when the one bitmap includes 8 bits, the above P may be a positive integer not greater than 8.
- the one bit bitmap may include 8 bits (ie, P is equal to 8), and the 8 bits correspond to 8 cells one-to-one.
- the one bit bitmap may include 8 bits (that is, P is equal to 8), only 3 bits among the 8 bits correspond to 3 cells one-to-one, and the remaining 5 bits among the 8 bits do not correspond any neighborhood.
- the one bitmap may include 5 bits (that is, P is equal to 5), only 3 bits among the 5 bits correspond to 3 cells one-to-one, and the remaining 2 bits among the 5 bits do not correspond any neighborhood. Among them, for the bits that do not correspond to any cell, no special design is made in this application.
- a bit in the bitmap corresponds to a configured cell, and the value of the bit is used to indicate whether a beam failure occurs in the cell corresponding to the bit, wherein the cell corresponding to the bit can be a single TRP cell or Multi-TRP cells.
- the terminal device When the cell corresponding to the one bit is a single TRP cell, the one bit is a null value, the terminal device ignores the value of the bit, and regards the one bit as a reserved field without information. It can also be understood that when the cell corresponding to the one bit is a single TRP cell, the value of the one bit is the first value by default, and the network device cannot set the value of the one bit to another value, or regardless of whether the network device sets the one bit value to another value. No matter what the value of the bit is set to, the terminal device regards the value of one bit as the first value.
- the first value is used to indicate that no beam failure has occurred in the cell corresponding to the one bit, for example, the first value may be equal to 0 or 1.
- the above method can also be used, that is, one bit corresponding to the cell is a null value, or the default value is 0. is the first value.
- the value of the one bit is used to indicate whether a beam failure occurs in the cell.
- the value of the one bit is equal to 1, indicating that at least one TRP in the cell corresponding to the bit has a beam failure, that is, a beam failure is detected in at least one beam failure detection resource group.
- the value of this bit is equal to 0 to indicate that no beam failure has occurred in the cell corresponding to this bit, that is, no beam failure has been detected in all beam failure detection resource groups, and the first MAC CE does not exist in the first MAC CE. or multiple bytes.
- the value of the one bit is equal to 0 to indicate that at least one TRP in the cell corresponding to the one bit has a beam failure, and the value of the one bit equal to 1 indicates that the cell corresponding to the bit has no beam failure occurred.
- Whether a beam failure occurs in the above-mentioned one multi-TRP cell can be understood as whether a beam failure is detected in at least one beam failure detection resource group configured for the one multi-TRP cell.
- the correspondence between bits and cells includes, but is not limited to: the i-th bit in the bitmap or the bit named C i corresponds to the cell with index i, where i is an integer greater than or equal to 0.
- the bit in the bitmap can only correspond to a multi-TRP cell, and the value of the bit is used to indicate whether a beam failure occurs in the cell corresponding to the bit.
- the value of this bit is equal to 1, indicating that at least one TRP in the cell corresponding to this bit has a beam failure, that is, a beam failure is detected in at least one beam failure detection resource group, and there is still one or more in the first MAC CE.
- Multiple bytes, including beam failure recovery information of the cell corresponding to this field; the value of this bit equal to 0 indicates that no beam failure has occurred in the cell corresponding to this bit, that is, no beam failure has been detected in all beam failure detection resource groups.
- the value of the bit equal to 0 indicates that at least one TRP in the cell corresponding to the bit has a beam failure
- the value of the bit equal to 1 indicates that the cell corresponding to the bit does not have a beam failure.
- bits and cells including but not limited to: the i-th bit in the bitmap or the i-th bit in the multi-TRP cell corresponding to the configuration of the bit named C i or the i-th smallest index or the i-th largest index
- i is an integer greater than or equal to 0.
- the network device configures 8 cells for a terminal device, among which cell 1, cell 3, cell 5 and cell 7 are multi-TRP cells, then C 0 , C 1 , C 2 , and C 3 in the above bitmap Corresponding to cell 1, cell 3, cell 5 and cell 7 respectively.
- the first MAC CE of the above-mentioned first type is only used to report beam failure recovery information of multiple TRP cells. For a single TRP cell, even if a beam failure occurs in the single TRP cell, the first type of the above-mentioned first MAC CE is used. The first MAC CE is also not used to report beam failure recovery information of the single TRP cell.
- a bit in a bitmap included in the first MAC CE of the first type corresponds to M bytes (octet or byte),
- M bytes are in one-to-one correspondence with M beam failure detection resource groups; or,
- M bytes are in one-to-one correspondence with M candidate beam resource groups; or,
- M bytes are in one-to-one correspondence with M TRPs;
- M bytes are in one-to-one correspondence with M CORESET packets.
- one bit corresponding to M bytes can be understood as, if the value of the one bit is the second value, there are M bytes in the first MAC CE, which are used to carry the beam failure recovery information of the cell corresponding to the one bit, Otherwise, the above-mentioned M bytes do not exist.
- the second value indicates that a beam failure occurs in the cell corresponding to the one bit.
- Each beam failure detection resource group and its associated candidate beam resource group in the above-mentioned M beam failure detection resource groups and the above-mentioned M alternative beam resource groups correspond to a TRP, and are used for detecting and summarizing the beam failure of the TRP. recover.
- the above-mentioned M bytes are in one-to-one correspondence with the M beam failure detection resource groups.
- the j-th byte in the above-mentioned M bytes may correspond to the j-th beam failure detection resource in the above-mentioned M beam failure detection resource groups.
- the above jth beam failure detection resource group may be the jth beam failure detection resource group sorted according to the configuration order or the index size order.
- the above-mentioned M bytes are in one-to-one correspondence with the M candidate beam resource groups.
- the j-th byte in the above-mentioned M bytes may correspond to the j-th standby beam in the above-mentioned M candidate beam resource groups.
- the above jth candidate beam resource group may be the jth candidate beam resource group sorted according to the configuration order or the index size order.
- the above-mentioned M bytes are in one-to-one correspondence with the M CORESET groups, specifically, the j-th byte in the above-mentioned M bytes corresponds to the j-th CORESET group in the above-mentioned M CORESET groups.
- the above jth CORESET group may be the jth CORESET group sorted according to the configuration order or the index size order, where j is a positive integer less than or equal to M.
- the above-mentioned one bit corresponds to M bytes, and the one bit can be understood as one bit corresponding to one cell configured by the network device for the terminal device, and the cell corresponding to the one bit is a multi-TRP cell in which beam failure occurs.
- beam failure may occur in one TRP in the multi-TRP cell.
- beam failure may occur in some or all of the TRPs in the multi-TRP cell.
- the terminal device detects that a beam failure occurs in at least one beam failure detection resource group among the M beam failure detection resource groups included in the configuration information of the one cell.
- the first bit C 0 in a bit map included in the first MAC CE of the first type above corresponds to cell 1, and the network device configures M beam failure detection resource groups and M beam failure detection resource groups for this cell 1.
- M is an integer greater than 1. If a beam failure occurs in at least one beam failure detection resource group in the M beam failure detection resource groups, there are M bytes corresponding to the first bit C 0 in the first MAC CE, and the M bytes can be combined with The M beam failure detection resource groups are in one-to-one correspondence, or the M bytes are in a one-to-one correspondence with the M candidate beam resource groups, or the M bytes are in a one-to-one correspondence with the M transmitting and receiving nodes TRP.
- each of the above-mentioned M bytes includes a first field (field), and the first field is used to indicate whether a beam failure is detected in the beam failure detection resource group corresponding to each byte.
- the beam failure detection resource group and the TRP may be equivalent to each other.
- the first field may also be used to indicate whether beam failure occurs in the TRP corresponding to each byte.
- the length of the first field may be 1 bit, and in this case, the first field may be located in the first bit or the second bit of the byte where the first field is located.
- the first field indicates that a beam failure is detected in the beam failure detection resource group corresponding to the byte where the first field is located
- other fields remaining in the byte where the first field is located carry further beam failure recovery information.
- the first field indicates that beam failure is detected in the beam failure detection resource group corresponding to the byte where the first field is located
- the remaining fields in the byte where the first field is located are null, that is, there is no beam failure recovery information, End devices can be ignored.
- the length of the first field may also be a larger number of bits.
- the length of the first field may also be 2 bits, and in this case, the first field may use the first 2 bits of the byte where the first field is located.
- each byte in the above-mentioned M bytes also includes a second field, and the second field is used to indicate whether the candidate beam resource group corresponding to each byte has the candidate beam resource that meets the quality requirements. .
- the second field is used to indicate whether candidate beam resource information exists in each byte.
- the candidate beam resource group and the TRP may be equivalent to each other.
- the second field may also be used to indicate whether the TRP corresponding to each byte has an alternative beam resource that meets the quality requirement.
- the length of the second field may be 1 bit, and in this case, the second field may be located in the first bit, the second bit or the third bit of the byte where the second field is located.
- the second field indicates that there are alternative beam resources meeting the quality requirements in the candidate beam resource group corresponding to the byte where the second field is located, there are other fields remaining in the byte where the second field is located to carry further beam failure recovery information.
- the second field indicates that there is no candidate beam resource meeting the quality requirement in the candidate beam resource group corresponding to the byte where the second field is located, the remaining fields in the byte where the second field is located are null, that is, there is no beam
- the failure recovery information can be ignored by the terminal device.
- the length of the second field may also be a larger number of bits.
- the length of the second field may also be 2 bits, and in this case, the second field may use the first 2 bits of the byte where the second field is located.
- each byte in the above-mentioned M bytes also includes a third field, and the third field is used to indicate the candidate beam that meets the quality requirement determined in the candidate beam resource group corresponding to each byte. resource information.
- the candidate beam resource group and the TRP may be equivalent to each other.
- the third field can also be used to indicate whether the TRP corresponding to each byte has information about whether there is an alternative beam resource that meets the quality requirement.
- the length of the third field may be 6 bits or 5 bits.
- the third field may specifically be the last 6 bits of the byte where the field is located.
- the third field may specifically be the last 5 bits of the byte where the field is located.
- the length of the third field may also be other values, which are not specifically limited.
- the above-mentioned third field may also be used for whether there is an alternative beam resource that meets the quality requirement in the alternative beam resource group corresponding to each byte.
- one field value of the third field is used to indicate that there is no candidate beam resource that meets the quality requirement, and the other field values indicate information about a specific candidate beam resource that meets the quality requirement.
- the length of the third field is 6 bits
- the field value 000000 indicates that there is no candidate beam resource that meets the quality requirement
- the other field values indicate information about a specific candidate beam resource that meets the quality requirement.
- the field value 111111 indicates that there is no candidate beam resource that meets the quality requirement
- the other field values indicate information about a specific candidate beam resource that meets the quality requirement.
- the remaining 63 field values may respectively indicate one of the 63 candidate beam resources.
- the candidate beam resource group configured by the network device for the terminal device includes at most 63 candidate beam resources.
- the two candidate beam resource groups configured by the network device for the terminal device contain a maximum of 63 candidate beam resources in total.
- the length of the third field is 5 bits
- the field value 00000 indicates that there is no candidate beam resource that meets the quality requirement
- the other field values indicate information about a specific candidate beam resource that meets the quality requirement.
- the field value 11111 indicates that there is no candidate beam resource that meets the quality requirement
- the other field values indicate information about a specific candidate beam resource that meets the quality requirement.
- the remaining 31 field values may respectively indicate one of the 31 candidate beam resources.
- the candidate beam resource group configured by the network device for the terminal device includes at most 31 candidate beam resources.
- the two candidate beam resource groups configured by the network device for the terminal device include a total of 31 candidate beam resources at most.
- the length of the third field is 7 bits
- the field value 0000000 indicates that there is no alternative beam resource that meets the quality requirement
- the other field values indicate information about a specific alternative beam resource that meets the quality requirement.
- the field value 1111111 indicates that there is no candidate beam resource that meets the quality requirement
- the other field values indicate information about a specific candidate beam resource that meets the quality requirement.
- the remaining 127 field values may respectively indicate one of the 127 candidate beam resources. It can be specified that the candidate beam resource group configured by the network device for the terminal device includes a maximum of 127 candidate beam resources. Alternatively, it is stipulated that the two candidate beam resource groups configured by the network device for the terminal device contain at most 127 candidate beam resources in total.
- each byte in the above-mentioned M bytes may only include any one of the above-mentioned fields. That is, each of the above-mentioned M bytes may only include the above-mentioned one first field. Alternatively, each of the above-mentioned M bytes may only include the above-mentioned one second field. Alternatively, each of the above-mentioned M bytes may also include only the above-mentioned one third field.
- each byte in the above-mentioned M bytes may include any plurality of fields in the above-mentioned fields at the same time.
- each of the above-mentioned M bytes may include a first field and a second field at the same time.
- each of the above-mentioned M bytes may include a first field, a second field and a third field at the same time.
- each of the above-mentioned M bytes may include a first field and a third field at the same time.
- the any one of the above-mentioned M bytes indicates that no beam failure is detected in the beam failure detection resource group corresponding to the any one byte, in this case, the any one The remaining fields in the bytes are empty.
- any one of the M bytes includes: a first field and a second field
- the first field in the any one byte indicates the beam failure detection resource group corresponding to the any one byte No beam failure has been detected in , in which case the second field in this arbitrary byte is empty.
- the network device can determine that no beam failure has occurred in the beam failure detection resource group corresponding to any one byte. If any one of the M bytes includes: the first field, the second field and the third field, if the first field in the any one byte indicates the beam failure detection resource group corresponding to the any one byte In this case, the second and third fields in this arbitrary byte are empty.
- any one of the M bytes includes: the first field, the second field and the third field, if the first field in the any one byte indicates the beam failure detection resource group corresponding to the any one byte If a beam failure is detected in the , the second field in the arbitrary byte is used to indicate that there is no candidate beam resource that meets the quality requirement in the candidate beam resource group corresponding to the arbitrary byte. In this case, the arbitrary beam resource group The third field in a byte is empty.
- the network device can determine that a beam failure has occurred in the beam failure detection resource group corresponding to any one byte, and there is no candidate beam resource corresponding to the beam failure detection resource group.
- the first MAC CE of the first type above is to report beam failure recovery information of multiple TRP cells.
- the first MAC CE is not used to report the beam failure recovery information of the single TRP cell to the network device.
- the network device configures terminal device #1 with only one beam failure detection resource group #1 and one alternative beam resource group #1, that is, the terminal device #1 communicates with the network device
- the cell is a single TRP cell.
- the terminal device defaults that the single TRP cell corresponding to the bit does not have a beam failure.
- the beam fails, so there will not be a byte corresponding to this bit in the first MAC CE, and the terminal device will not send the beam failure recovery information of the single TRP cell corresponding to this bit through the first MAC CE.
- the first MAC CE of the first type described above corresponds to a field, and this field corresponds to a cell
- the first MAC CE of the above-mentioned first type includes multiple fields, each field in the multiple fields corresponds to a cell, and each field adopts multiple bits (2 bits or more than 2 bits) , in this case, the multiple fields can be regarded as a bitmap as a whole, and at this time, one "bit" in the one bitmap is equal to one "field", and the field includes multiple bits.
- the terminal device needs to send the beam failure recovery information corresponding to the cell through the first MAC CE, it is necessary to ensure that the first MAC CE
- One bit in the included bitmap corresponds to a cell, and the terminal device detects that a beam failure has occurred in the cell, and the configuration information of the cell includes M beam failure detection resource groups and M candidate beam resource groups, where M is greater than 1 (ie, the cell is a multi-TRP cell). That is to say, in the above situation, the terminal device can send the beam failure recovery information corresponding to the cell through the first MAC CE.
- the network device may also allocate other cells except the above-mentioned cells to the terminal device, and for the convenience of description, other cells except the above-mentioned cells will be excluded.
- the other cell may be a single TRP cell, that is, the configuration information of the other cell includes one beam failure detection resource group and one candidate beam resource group.
- a bit in a bitmap included in the first MAC CE corresponds to another cell, and regardless of the value of the one bit, the terminal device defaults that no beam failure has occurred in the other cell.
- the first MAC CE There is no 1 byte corresponding to this one bit in .
- the other cell may also be a multi-TRP cell, that is, the configuration information of the other cell includes multiple (for example, the multiple is S, and S is an integer greater than 1, S may be equal to M, or S It may also not be equal to M) beam failure detection resource group and multiple candidate beam resource groups.
- a bit in a bitmap included in the first MAC CE corresponds to another cell, and when a beam failure occurs in at least one beam failure detection resource group in the multiple beam failure detection resource groups, the first MAC CE also includes The multiple bytes corresponding to the one bit are in one-to-one correspondence with multiple beam failure detection resource groups configured for other cells.
- the format of the first MAC CE of the first type provided by the embodiments of the present application is described in detail in conjunction with the text. Below, the format of the first MAC CE of the above-mentioned first type will be introduced with reference to FIG. 6 and FIG. 7 .
- the first MAC CE of the first type provided by the embodiment of the present application includes: a bitmap (including 8 bits (that is, 8 fields, each field adopts one bit), which are respectively recorded as: C 0 , C 1 , C 2 , C 3 , C 4 , C 5 , C 6 and C 7 , and the 8 bits correspond to 8 cells one-to-one), and with the i-th in the one-bit bitmap M bytes corresponding to the bit C i (i is an integer greater than or equal to 0 and less than or equal to 7), and the cell corresponding to the i-th bit C i is a multi-TRP cell with beam failure.
- a bitmap including 8 bits (that is, 8 fields, each field adopts one bit), which are respectively recorded as: C 0 , C 1 , C 2 , C 3 , C 4 , C 5 , C 6 and C 7 , and the 8 bits correspond to 8 cells one-to-one
- the number of bytes corresponding to the i-th bit C i is equal to the number of beam failure detection resource groups or candidate beam resource groups included in the cell corresponding to the i-th bit C i
- the M corresponding to the i-th bit C i The bytes may correspond one-to-one with the M beam failure detection resource groups, or the M bytes corresponding to the i-th bit C i may be in one-to-one correspondence with the M candidate beam resource groups, or, the i-th bit C
- the M bytes corresponding to i may be in one-to-one correspondence with the M TRPs.
- the above-mentioned first bitmap corresponds to a single TRP cell.
- the byte corresponding to this one bit does not exist in the MAC CE.
- the multi-TRP cell corresponding to the first bit C0 in a bitmap included in the first MAC CE (the configuration information of the cell includes M beam failure detection resource groups and M candidate beam resources, M is an integer greater than 1) and a beam failure occurs, then there are M bytes corresponding to the first bit C 0 in the first MAC CE, and the M bytes may be in one-to-one correspondence with the M beam failure detection resource groups.
- the first byte of the M bytes may include: an F1 field (ie, an example of the above-mentioned first field), an AC 1 field (ie, an example of the above-mentioned second field) and an alternative RS ID 1 field ( That is, an example of the above-mentioned third field), wherein the value of the F1 field is used to indicate that the beam failure detection resource group corresponding to the 1 byte has a beam failure, and the value of the AC1 field is used to indicate the word of the field.
- an F1 field ie, an example of the above-mentioned first field
- an AC 1 field ie, an example of the above-mentioned second field
- an alternative RS ID 1 field That is, an example of the above-mentioned third field
- the first byte of the M bytes may only include: the F 1 field (that is, an example of the first field) and the AC 1 field (that is, an example of the second field), where F The value of the 1 field is used to indicate that a beam failure has occurred in the beam failure detection resource group corresponding to the 1 byte, and the value of the AC 1 field is used to indicate that the candidate beam resource group corresponding to the byte where this field is located does not exist in the candidate beam resource group that meets the quality requirements.
- each of the above-mentioned M bytes except the first byte only includes: the F1 field (that is, an example of the above-mentioned first field), and the value of the F1 field is used to indicate There is no beam failure in the beam failure detection resource group corresponding to the byte in which this field is located.
- the FM field in FIG. 6 may be located in the second bit of each byte, and the AC M field in FIG. 6 may be located in the first bit of each byte, in this case , the positions of the FM field and the AC M field in FIG. 6 need to be exchanged.
- the length of the alternative RS ID M field in FIG. 6 may also be 5 bits.
- the length of the alternative RS ID field in one byte in FIG. 6 can also be a smaller number of bits (for example, 5 bits), and the length of the AC field can also be a larger number. bits (eg, 2 bits).
- the length of the R field can be 1 bit
- the length of the AC field can be 2 bits
- the alternative RS ID field can be 5 bits.
- FIG. 6 8 cells are configured for a terminal device by "the network device, and each cell is configured with M beam failure detection resource groups and M candidate beam resource groups, where M is greater than 1" as an example, the specific format of the first MAC CE of the first type provided in the embodiment of the present application is introduced. That is to say, the above-mentioned FIG. 6 is for illustration only, and does not constitute any limitation to the first MAC CE format of the first type provided by the embodiment of the present application.
- the format of the first MAC CE of the first type shown in FIG. 6 is used as an example for introduction.
- the network device configures three cells for a terminal device, which are cell 0, cell 1, and cell 2, where cell 0 is configured with three beam failure detection resource groups and three alternative beam resource groups.
- Cell 1 is a cell configured with two beam failure detection resource groups and two alternative beam resource groups
- cell 2 is a cell configured with one beam failure detection resource group and one alternative beam resource group.
- cell 0 corresponds to the first bit C 0 in the bitmap included in the first MAC CE
- cell 1 corresponds to the second bit C 1 in the bitmap included in the first MAC CE
- cell 2 corresponds to the first bit C 1 included in the first MAC CE.
- the third bit C 2 in the bitmap of .
- the terminal device detects 2 beam failure detection resource groups in the 3 beam failure detection resource groups configured for cell 0 (beam failure detection resource group #1, beam failure detection resource group #2, and beam failure detection resource group #3) (Beam failure detection resource group #1 and beam failure detection resource group #3) Beam failure occurs, and there are only the candidate beam resources corresponding to beam failure detection resource group #1 in the three candidate beam resource groups.
- beam failure The detection resource group #1 corresponds to the first byte of the 3 bytes corresponding to the first bit C 0
- the beam failure detection resource group #2 corresponds to the second byte of the 3 bytes corresponding to the first bit C 0
- beam failure detection resource group #3 corresponds to the 3rd byte among the 3 bytes corresponding to the first bit C 0 .
- the terminal device detects 1 beam failure detection resource group (ie, the beam failure detection resource group) in the 2 beam failure detection resource groups (beam failure detection resource group #1 and beam failure detection resource group #2) configured for cell 1 #2)
- 1 beam failure detection resource group ie, the beam failure detection resource group
- beam failure detection resource group #1 and beam failure detection resource group #2 configured for cell 1 #2
- a beam failure occurs, and in the three candidate beam resource groups, only the candidate beam resources corresponding to the beam failure detection resource group #1 and the candidate beam resources corresponding to the beam failure detection resource group #3 exist, wherein the beam The failure detection resource group #1 corresponds to the first byte of the 2 bytes corresponding to the second bit C 1
- the beam failure detection resource group #2 corresponds to the second byte of the 2 bytes corresponding to the second bit C 1 . corresponding bytes.
- the terminal device detects that the number of beam failure detection resource groups configured for cell 2 and the number of candidate beam resource groups are both 1, so there is no byte corresponding to the third bit C 2 in the first MAC CE, and the third bit C The value of 2 defaults to 0 or 1.
- the value of a bit in the bitmap corresponding to the multiple TRP cells is equal to 1, indicating that beam failure occurs in the multiple TRP transmissions
- the value of one bit in the bitmap corresponding to the multiple TRP transmissions is defined.
- a value equal to 0 indicates that no beam failure has occurred for the multiple TRP transmissions.
- the value of the first field in each byte of the multiple bytes corresponding to the one bit is equal to 1, indicating that a beam failure occurs in the beam failure detection resource group corresponding to each byte.
- the value of the first field in each byte of the plurality of bytes is equal to 0, indicating that no beam failure has occurred in the beam failure detection resource group corresponding to each byte.
- the specific contents of the 3 bytes corresponding to the first bit C 0 and the 2 bytes corresponding to the second bit C 1 can be referred to in FIG. 7 .
- the field in the byte corresponding to C 0 is empty, which means that the field has no specific meaning.
- the F 2 field in the second byte corresponding to the first bit C 0 is equal to 0, indicating that no beam failure has occurred in the beam failure detection resource group corresponding to the second byte, so the rest of the second byte Field is empty.
- FIG. 6 and FIG. 7 are for illustration only, and do not constitute any limitation on the format of the first type of the first MAC CE provided in the embodiment of the present application.
- the format of the first MAC CE obtained according to the definition of the format of the first type of the first MAC CE provided by the embodiment of the present application belongs to the format of the MAC CE claimed by the embodiment of the present application.
- the beam failure recovery information corresponding to the cell may include the following information: beam failure recovery information corresponding to the beam failure detection resource group in which beam failure is detected in the M beam failure detection resource groups, and M beam failure detection resource groups The information of the beam failure detection resource group in which the beam failure has not been detected.”
- the format of the first MAC CE of the first type provided by the embodiment of the present application is introduced.
- taking "beam failure recovery information corresponding to a cell may include: beam failure recovery information corresponding to a beam failure detection resource group in which beam failures are detected in M beam failure detection resource groups" as an example, the information provided by the embodiments of the present application is introduced.
- the second type of first MAC CE includes: a bitmap. It can be understood that the definition of a bitmap included in the first MAC CE of the second type is the same as the definition of a bitmap included in the first MAC CE of the first type, and is not described in detail here. For details, refer to the definition of a bitmap included in the first MAC CE of the first type above.
- one bit in the above bitmap corresponds to one or more bytes.
- the first MAC CE further includes a fourth field, where the fourth field is used to indicate the number of bytes corresponding to one bit.
- the cell corresponding to the above-mentioned one bit can be understood as a multi-TRP cell with beam failure, and the specific number of bytes corresponding to the one bit is equal to the number of TRPs with beam failure in the multi-TRP cell corresponding to the one bit, or equal to the detection
- the number of beam failure recovery resource groups in which beam failure occurs in the multi-TRP cell corresponding to the one bit Specifically, when only one TRP in the multi-TRP cell corresponding to one bit has beam failure, the one bit corresponds to only one byte, that is, the first MAC CE of the second type only includes one word corresponding to the one bit. Festival. For example, there are 2 TRPs in a multi-TRP cell.
- the bit corresponding to the multi-TRP cell in the above bitmap only corresponds to 1 byte.
- octets correspond to the TRP in which the beam failure occurred, or correspond to the beam failure detection resource group in which the occurrence of the beam failure is detected.
- the first MAC CE of the second type only includes one byte corresponding to the one bit.
- the one bit corresponds to only multiple bytes, that is, the above bitmap includes multiple bytes corresponding to the one bit. For example, there are 2 TRPs in a multi-TRP cell.
- the bits in the above bitmap corresponding to the multi-TRP cell correspond to 2 bytes.
- the first MAC CE of the above-mentioned second type includes 2 corresponding to the bit. byte.
- the above fourth field can also be understood as the number of TRPs used to indicate beam failures in multi-TRP cells, or the fourth field can also be understood as beam failure detection used to indicate beam failures in multi-TRP cells. The number of resource groups.
- the fourth field may be defined as 0 to indicate that a single TRP in the multi-TRP cell has a beam failure, and the fourth field may be defined to be equal to 1 to indicate that the beam failure occurs for multiple TRPs in the multi-TRP cell.
- the fourth field may be defined to be equal to 1 to indicate that a single TRP in the multi-TRP cell has a beam failure, and the fourth field may be defined to be equal to 0 to indicate that a beam failure occurs to multiple TRPs in the multi-TRP cell.
- the first MAC CE Only one or more bytes corresponding to any one bit exist in the MAC CE, and the beam failure detection resource group corresponding to the one or more bytes is the beam failure detection resource group in which beam failure occurs.
- the above-mentioned fourth field may be a field in the first byte of one or more bytes corresponding to the above-mentioned cell, and the fourth field is used to indicate whether the next byte of the first byte is not. Carrying the beam failure recovery information of the cell, or the fourth field is used to indicate whether there is the second byte of the cell in the first MAC CE.
- the above-mentioned fourth field may be located in the first bit or the second bit in the first byte, and in this case, the length of the fourth field is 1 bit.
- the length of the fourth field may also be a larger number of bits.
- the length of the fourth field may also be 2 bits, and in this case, the fourth field may use the first 2 bits of the byte where the fourth field is located.
- the first byte of the above one or more bytes further includes a fifth field, where the fifth field is used to indicate the information of the TRP in which the beam failure occurs.
- the information of the TRP in which the beam failure occurs includes, but is not limited to, the index of the TRP in which the beam failure occurs, or the index of the beam failure detection resource group in which the beam failure is detected. It should be understood that the index of the TRP, the index of the beam failure detection resource group corresponding to the TRP, the index of the alternative beam resource group corresponding to the TRP, and the index of the CORESET grouping, these descriptions are equivalent, that is, the meanings expressed by these descriptions are consistent.
- the fifth field is used to indicate the information of the TRP in which the beam failure occurs or the information of the beam failure detection resource group in which the beam failure is detected.
- the value of the fifth field may be empty, that is, there is no specific information, and the terminal device may ignore it.
- the M bytes are in one-to-one correspondence with the M beam failure detection resource groups, or the M bytes are in a one-to-one correspondence with the M candidate beam resource groups, or the M bytes are in a one-to-one correspondence with the M TRPs, or M bytes are in one-to-one correspondence with M COREEST packets, and the specific correspondence can refer to the first MAC CE format of the first type.
- the length of the fifth field may be 1 bit, and the length of the fifth field may also be more bits, which is not specifically limited.
- the length of the fifth field may also be 2 bits, and in this case, the fifth field may use the first 2 bits of the byte where the fifth field is located.
- each of the one or more bytes further includes a seventh field
- the seventh field is used to indicate whether there is an alternative beam that meets the quality requirements in the alternative beam resource group corresponding to each byte.
- alternative beam resources that meet quality requirements are used to indicate whether candidate beam resource information exists in each byte.
- the candidate beam resource group and the TRP may be equivalent to each other.
- the seventh field may also be used to indicate whether the TRP corresponding to each byte has an alternative beam resource that meets the quality requirement.
- the length of the seventh field is 1 bit
- the position of the seventh field may be the first bit, the second bit or the third bit in the corresponding byte.
- the seventh field in the first byte of the multiple bytes can be located in the third bit of the first byte, and the multiple bytes
- the seventh field in the second byte can also be in the third bit in the second byte, or the seventh field in the second byte can also be in the first bit, or the second bit, that is, the seventh field uses one bit at this time.
- the length of the seventh field may also be a larger number of bits, which is not specifically limited.
- each of the above one or more bytes further includes an eighth field.
- the embodiment of the present application further provides two definitions of the eighth field, and the following specifically introduces the two definitions of the eighth field.
- the eighth field is used to indicate the information of the candidate beams that meet the quality requirements or the information of the candidate beam resources that meet the quality requirements determined in the candidate beam resource group corresponding to each byte.
- the candidate beam resource group and the TRP may be equivalent to each other.
- the eighth field may also be used to indicate the information of the candidate beam resources of the TRP corresponding to each byte that meet the quality requirement.
- the length of the third field may be 6 bits or 5 bits.
- the third field may specifically be the last 6 bits of the byte where the field is located.
- the third field may specifically be the last 5 bits of the byte where the field is located.
- the length of the eighth field may also be other values, which are not specifically limited.
- the value of the eighth field may include multiple field values, and one of the multiple field values is used to indicate that the candidate beam resource group corresponding to each byte does not exist in the candidate beam resource group that satisfies the
- each field value in the remaining field values except one field value among the plurality of field values is used to represent information of a candidate beam resource that satisfies the quality requirement.
- some of the remaining field values may also contain information that some of the field values do not represent the candidate beam resources that meet the quality requirements, that is, not every field value in the remaining field values is used to represent the candidate beams that meet the quality requirements. resource information.
- the length of the eighth field is 6 bits
- the field value 000000 indicates that there is no candidate beam resource that meets the quality requirement
- the remaining field values (eg, 111100) indicate information about a specific candidate beam resource that meets the quality requirement.
- the field value 111111 indicates that there is no candidate beam resource that meets the quality requirement
- the other field values (eg, 111000) indicate information about a specific candidate beam resource that meets the quality requirement. That is, the remaining 63 field values may respectively indicate one of the 63 candidate beam resources. It can be specified that the candidate beam resource group configured by the network device for the terminal device includes at most 63 candidate beam resources.
- the two candidate beam resource groups configured by the network device for the terminal device contain a maximum of 63 candidate beam resources in total.
- the length of the eighth field is 5 bits
- the field value 00000 indicates that there is no candidate beam resource that meets the quality requirement
- the other field values indicate information about a specific candidate beam resource that meets the quality requirement.
- the field value 11111 indicates that there is no candidate beam resource that meets the quality requirement
- the other field values indicate information about a specific candidate beam resource that meets the quality requirement. That is, the remaining 31 field values may respectively indicate one of the 31 candidate beam resources.
- the candidate beam resource group configured by the network device for the terminal device includes at most 31 candidate beam resources.
- the two candidate beam resource groups configured by the network device for the terminal device include a total of 31 candidate beam resources at most.
- the length of the eighth field is 7 bits
- the field value 0000000 indicates that there is no candidate beam resource that meets the quality requirement
- the remaining field values indicate information about a specific candidate beam resource that meets the quality requirement.
- the field value 1111111 indicates that there is no candidate beam resource that meets the quality requirement
- the other field values indicate information about a specific candidate beam resource that meets the quality requirement. That is, the remaining 127 field values may respectively indicate one of the 127 candidate beam resources.
- the candidate beam resource group configured by the network device for the terminal device includes a maximum of 127 candidate beam resources.
- it is stipulated that the two candidate beam resource groups configured by the network device for the terminal device contain at most 127 candidate beam resources in total.
- each of the one or more bytes corresponding to the above-mentioned one bit may only include any one of the above-mentioned fields. That is, each of the one or more bytes corresponding to the above-mentioned one bit may only include the above-mentioned one fourth field. Each of the above-mentioned one bit corresponding to one or more bytes may only include the above-mentioned one fifth field. Each of the above-mentioned one bit corresponding to one or more bytes may only include the above-mentioned one seventh field.
- the above-mentioned one bit corresponds to one or more bytes, and each byte may only include the above-mentioned one eighth field (for example, the eighth field of the above-mentioned first definition method, or the eighth field of the above-mentioned second definition method. ).
- each of the one or more bytes corresponding to the above-mentioned one bit may include multiple fields of the above-mentioned fields at the same time.
- each of the above-mentioned one bit corresponding to one or more bytes may include a fourth field and a fifth field at the same time.
- each of the above-mentioned one bit corresponding to one or more bytes may simultaneously include: a fourth field, a fifth field, a seventh field and an eighth field (that is, the above-mentioned first definition method the eighth field), when the seventh field is used to indicate that the TRP corresponding to the byte where the seventh field is located does not have an alternative beam resource that meets the quality requirement, the value of the eighth field may be empty.
- the format of the first MAC CE of the second type provided by the embodiment of the present application is described in detail in conjunction with the text. Below, the format of the first MAC CE of the second type is introduced in conjunction with FIG. 8 and FIG. 9 .
- the second type of the first MAC CE includes: a bitmap (including 8 bits (that is, 8 fields, each field uses one bit), respectively denoted as: C 0 , C 1 , C 2 , C 3 , C 4 , C 5 , C 6 and C 7 , and the 8 bits correspond to 8 cells one-to-one), and any bit C in the one-bit bitmap One or more bytes corresponding to i (i is an integer greater than or equal to 0 and less than or equal to 7), wherein the cell corresponding to any bit C i is a multi-TRP cell where beam failure occurs, and any bit C i corresponds to The number of bytes is the same as the number of beam failures in the multi-TRP cell corresponding to any bit C i .
- the section may include: an E field (ie, an example of the above-mentioned fourth field), a T field (ie, an example of the above-mentioned fifth field), an AC 1 field (ie, an example of the above-mentioned seventh field) and an alternative RS ID 1 field (that is, an example of the above-mentioned eighth field), wherein the E field is used to indicate that only one TRP in the multi-TRP cell corresponding to any bit C i has a beam failure, and the T field is used to indicate the beam failure of the 1 information of a TRP (for example, the index of the TRP), the AC 1 field is used to indicate that there is an alternative beam that meets the quality requirement or an alternative beam resource that meets the quality requirement in the alternative beam resource group corresponding to the
- the 1 byte may further include: an E field (that is, an example of the above fourth field), a T field (that is, an example of the above fifth field), and an AC 1 field (that is, an example of the above seventh field.
- the AC 1 field is used to indicate that the candidate beam resource group corresponding to the 1 byte does not have an alternative beam that meets the quality requirement or an alternative beam resource that meets the quality requirement.
- the value of the candidate RS ID 1 field corresponding to the 1 byte is null.
- the M corresponding to any of the bits C i bytes, the first byte of the M bytes may include: E field (ie, an example of the fourth field), T field (ie, an example of the fifth field), AC 1 field (ie, an example of the fifth field) , an example of the above-mentioned seventh field) and an alternative RS ID 1 field (that is, an example of the above-mentioned eighth field), wherein the E field is used to indicate that the multi-TRP cell corresponding to any bit C i has a beam failure, and T The value of the field is empty, the AC 1 field is used to indicate that there is an alternative beam that meets the quality requirement or an alternative beam resource that meets the quality requirement in the alternative beam resource group corresponding to the 1 byte, and the alternative RS ID 1 field It is used to indicate the information
- Each of the M bytes except the first byte may include: an R field, an AC field and an alternative RS ID field.
- the second byte may include: an R field, an AC 2 field and an alternative RS ID 2 field, where the R field is a reserved field and has no specific meaning , the AC 2 field is used to indicate that there are alternative beams that meet the quality requirements or alternative beam resources that meet the quality requirements in the alternative beam resource group corresponding to the 2 bytes, and the alternative RS ID 2 field is used to indicate that the two Information about the candidate beams that meet the quality requirements or information about the candidate beam resources that meet the quality requirements determined in the candidate beam resource group corresponding to the byte.
- the second byte may also include: an R field and an AC 2 field, where the R field is a reserved field and has no specific meaning, and the AC 2 field is used to indicate the candidate beam corresponding to the two bytes There are no alternative beams that meet the quality requirements or alternative beam resources that meet the requirements in the resource group.
- the second byte also includes the alternative RS ID 2 field, but the alternative RS ID 2 The value of the field is empty.
- the E field shown in (b) in FIG. 8 may also be a field in the remaining bytes in the M bytes corresponding to any bit C i .
- the E field, T field, AC field, and R field use one bit
- the alternative RS ID field uses 5 bits as an example for introduction.
- the number of bits used in the above fields may also be Other values are not specifically limited.
- the number of bits used in the different bytes included in the MAC CE in FIG. 8 corresponding to the same field (for example, the AC field) may also be different.
- the format of the first MAC CE of the second type shown in FIG. 8 is used as an example for introduction.
- the network device configures three cells for a terminal device, which are cell 0, cell 1, and cell 2, where cell 0 is configured with three beam failure detection resource groups and three alternative beam resource groups.
- Cell 1 is a cell configured with two beam failure detection resource groups and two alternative beam resource groups
- cell 2 is a cell configured with two beam failure detection resource groups and two alternative beam resource groups.
- cell 0 corresponds to the first bit C 0 in the bitmap included in the first MAC CE
- cell 1 corresponds to the second bit C 1 in the bitmap included in the first MAC CE
- cell 2 corresponds to the first bit C 1 included in the first MAC CE.
- the third bit C 2 in the bitmap of .
- the terminal device detects 3 beam failure detection resource groups in the 3 beam failure detection resource groups configured for cell 0 (beam failure detection resource group #1, beam failure detection resource group #2, and beam failure detection resource group #3) Beam failures occur in all the three candidate beam resource groups, and only the candidate beam resources corresponding to beam failure detection resource group #2 and the candidate beam resources corresponding to beam failure detection resource group #3 exist in the three candidate beam resource groups.
- beam failure detection resource group #3 corresponds to the first byte of the 3 bytes corresponding to the first bit C 0
- beam failure detection resource group #2 corresponds to the second word of the 3 bytes corresponding to the first bit C 0
- Section corresponding to the beam failure detection resource group #3 corresponds to the 3rd byte in the 3 bytes corresponding to the first bit C0 .
- the terminal device detects 1 beam failure detection resource group (ie, the beam failure detection resource group) in the 2 beam failure detection resource groups (beam failure detection resource group #1 and beam failure detection resource group #2) configured for cell 1 #2) A beam failure occurs, and in the three candidate beam resource groups, only the candidate beam resources corresponding to the beam failure detection resource group #1 and the candidate beam resources corresponding to the beam failure detection resource group #3 exist, wherein the beam The failure detection resource group # 1 corresponds to 1 byte corresponding to the second bit C1.
- the terminal device detects that no beam failure has occurred in the two beam failure detection resource groups configured for cell 2, so there is no byte corresponding to the third bit C 2 in the first MAC CE.
- the value of a bit in the bitmap corresponding to the multiple TRP cells is equal to 1, indicating that beam failure occurs in the multiple TRP transmissions, and the value of one bit in the bitmap corresponding to the multiple TRP transmissions is defined.
- a value equal to 0 indicates that no beam failure has occurred for the multiple TRP transmissions.
- the value of the fifth field in the first byte of the multiple bytes corresponding to the one bit is equal to 1, indicating that the multiple beams corresponding to the first byte fail to detect multiple beam failures in the resource group
- the value of the fifth field in the first byte of the multiple bytes corresponding to one bit is equal to 0, indicating that the first byte corresponds to multiple beam failure detection resources Only one beam failure detection resource group in the group has a beam failure.
- the specific contents of the 3 bytes corresponding to the above-mentioned first bit C 0 and the 2 bytes corresponding to the above-mentioned second bit C 1 can be referred to FIG.
- the E field is an example of the above-mentioned fourth field
- the AC 1 , AC 2 or AC 3 field is an example of the above-mentioned seventh field
- the alternative RS ID 1 field or the alternative RS ID 2 field is an example of the above-mentioned eighth field.
- FIG. 8 and FIG. 9 are described by taking “a bit in the bitmap included in the first MAC CE of the second type described above corresponds to a field, and the field corresponds to a cell” as an example.
- the first MAC CE of the second type in FIG. 8 and FIG. 9 may include multiple fields, each of the multiple fields corresponds to a cell, and each field Using multiple bits (2 bits or more than 2 bits), in this case, the multiple fields can be regarded as a bit map as a whole, and one "bit" in the one bit map is equal to one "Field", which includes a number of bits.
- FIG. 8 and FIG. 9 are described by taking “a bit in the bitmap included in the first MAC CE of the second type described above corresponds to a field, and the field corresponds to a cell” as an example.
- the first MAC CE of the second type in FIG. 8 and FIG. 9 may include multiple fields, each of the multiple fields corresponds to a cell, and each field Using multiple bits (2 bits or more than 2 bits
- the format of the first MAC CE obtained according to the definition of the format of the second type of the first MAC CE provided by the embodiment of the present application belongs to the format of the MAC CE claimed by the embodiment of the present application.
- the third type of the first MAC CE provided by the embodiment of the present application includes: a bitmap. It can be understood that the definition of a bitmap included in the first MAC CE of the third type is the same as the definition of a bitmap included in the first MAC CE of the first type, and is not described in detail here. For details, refer to the definition of a bitmap included in the first MAC CE of the first type above.
- any bit in the above bitmap corresponds to one or more bytes
- the first MAC CE also includes a fourth field, where the fourth field is used to indicate the number of bytes corresponding to any bit.
- the fourth field is a field in the first byte of the one or more bytes, and the fourth field is used to indicate whether the next byte of the first byte carries the beam failure recovery of the cell information.
- the fourth field may be located in the first bit or the second bit in the first byte.
- each of the one or more bytes further includes a sixth field, and the sixth field is used to indicate the beam failure detection resource group corresponding to each byte, or the backup device corresponding to each byte.
- the sixth field is used to indicate the beam failure detection resource group corresponding to each byte, or the backup device corresponding to each byte.
- the length of the sixth field can be 1 bit, and the length of the sixth field can also be more bits, which is not specifically limited.
- each of the one or more bytes further includes a seventh field, and the seventh field is used to indicate whether there is an alternative beam that meets the quality requirements in the alternative beam resource group corresponding to each byte. Or alternative beam resources that meet quality requirements.
- the seventh field For the specific characteristics of the seventh field, reference may be made to the first MAC CE format of the second type.
- each byte in the one or more bytes further includes an eighth field, and the eighth field is used to indicate an alternative beam resource group corresponding to each byte that meets the quality requirements determined.
- Information about beams or information about alternative beam resources that meet quality requirements may be made to the first MAC CE format of the second type.
- each of the one or more bytes corresponding to the above-mentioned one bit may only include any one of the above-mentioned fields. That is, each of the one or more bytes corresponding to the above-mentioned one bit may only include the above-mentioned one fourth field. Each of the above-mentioned one bit corresponding to one or more bytes may only include the above-mentioned one sixth field. Each of the above-mentioned one bit corresponding to one or more bytes may only include the above-mentioned one seventh field. Each of the above-mentioned one bit corresponding to one or more bytes may only include the above-mentioned one eighth field.
- each of the one or more bytes corresponding to the above-mentioned one bit may include multiple fields of the above-mentioned fields at the same time.
- each of the above-mentioned one bit corresponding to one or more bytes may include a fourth field and a sixth field at the same time.
- each of the above-mentioned one bit corresponding to one or more bytes may simultaneously include: a fourth field, a sixth field, a seventh field and an eighth field (that is, the above-mentioned first definition method the eighth field), when the seventh field is used to indicate that the TRP corresponding to the byte where the seventh field is located does not have an alternative beam resource that meets the quality requirement, the value of the eighth field may be empty.
- the fourth field, the seventh field and the eighth field in each byte in the format of the first MAC CE of the third type are the same as the format of the first MAC CE of the second type.
- the specific definitions of the fourth field, the seventh field and the eighth field in each byte are the same, and the content that is not described in detail here can specifically refer to the above-mentioned description of the format of the first MAC CE of the second type.
- the definition of the format of the first MAC CE of the third type provided by the embodiment of the present application is described in detail in conjunction with the text.
- the format of the first MAC CE of the third type is introduced in conjunction with FIG. 10 and FIG. 11 .
- the third type of the first MAC CE includes: a bitmap (including 8 bits (that is, 8 fields, each field adopts one bit), which are respectively recorded as: C 0 , C 1 , C 2 , C 3 , C 4 , C 5 , C 6 and C 7 , and the 8 bits correspond to 8 cells one-to-one), and any bit C in the one-bit bitmap One or more bytes corresponding to i (i is an integer greater than or equal to 0 and less than or equal to 7), wherein the cell corresponding to any bit C i is a multi-TRP cell where beam failure occurs, and any bit C i corresponds to The number of bytes is the same as the number of beam failures in the multi-TRP cell corresponding to any bit C i .
- the section may include: E field (ie, an example of the above-mentioned fourth field), T1 field (ie, an example of the above-mentioned sixth field), AC 1 field (ie, an example of the above-mentioned seventh field), and an alternative RS ID 1 field (that is, an example of the above eighth field), wherein the E field is used to indicate that only one TRP in the multi-TRP cell corresponding to any bit C i has a beam failure, and the T 1 field is used to indicate the 1 word Section corresponding beam failure detection resource group, or the T 1 field is used to indicate the candidate beam resource group corresponding to the 1 byte, and the AC 1 field is used to indicate that the candidate beam resource group corresponding to the 1 byte exists in the The candidate beam that meets the quality requirement or the candidate
- the 1 byte may further include: an E field (that is, an example of the above fourth field), a T field (that is, an example of the above fifth field), and an AC 1 field (that is, an example of the above seventh field.
- the AC 1 field is used to indicate that the candidate beam resource group corresponding to the 1 byte does not have an alternative beam that meets the quality requirement or an alternative beam resource that meets the quality requirement.
- the value of the candidate RS ID 1 field corresponding to the 1 byte is null.
- the M corresponding to any bit C i bytes, the first byte of the M bytes may include: E field (ie, an example of the fourth field), T1 field (ie, an example of the sixth field), AC 1 field ( That is, an example of the above-mentioned seventh field) and an alternative RS ID 1 field (that is, an example of the above-mentioned eighth field), wherein the E field is used to indicate that there is only one multi-TRP cell corresponding to any bit C i A beam failure occurs in TRP, the T1 field is used to indicate the beam failure detection resource group corresponding to the 1 byte, or the T1 field is used to indicate the alternative beam resource group corresponding to the 1 byte, and the AC 1 field is used to indicate In the candidate beam resource group corresponding to the 1 byte, there are candidate beams that meet the
- Each of the M bytes except the first byte may include: an R field, a T field, an AC field and an alternative RS ID field.
- the second byte may include: an R field, a T2 field, an AC2 field, and an alternative RS ID 2 field , where the R field is a reserved field , no specific meaning, the T 2 field is used to indicate the beam failure detection resource group corresponding to the 2 bytes, or the T 2 field is used to indicate the candidate beam resource group corresponding to the 2 bytes, and the AC 2 field is used to indicate In the candidate beam resource group corresponding to the 2 bytes, there are candidate beams that meet the quality requirements or candidate beam resources that meet the quality requirements, and the candidate RS ID 2 field is used to indicate the candidate beams corresponding to the 2 bytes.
- the second byte may also include: an R field, a T 2 field, and an AC 2 field, where the R field is a reserved field and has no specific meaning, and the T 2 field is used to indicate that the two bytes correspond to The beam failure detection resource group of the The required alternative beam or the alternative beam resource that meets the quality requirements, in this case, it can also be understood that the second byte also includes the alternative RS ID 2 field, but the value of the alternative RS ID 2 field is null.
- the E field shown in (b) in FIG. 10 may also be a field in the remaining bytes of the M bytes corresponding to any bit C i .
- the E field, T field, AC field, and R field use one bit, and the alternative RS ID field uses 5 bits as an example.
- the number of bits used in the above fields may also be Other values are not specifically limited.
- the number of bits used in different bytes included in the MAC CE corresponding to the same field (for example, the AC field) in FIG. 10 may also be different.
- the format of the third type of the first MAC CE shown in FIG. 10 is used as an example for introduction.
- the network device configures three cells for a terminal device, which are cell 0, cell 1, and cell 2, where cell 0 is configured with three beam failure detection resource groups and three alternative beam resource groups.
- Cell 1 is a cell configured with two beam failure detection resource groups and two alternative beam resource groups
- cell 2 is a cell configured with two beam failure detection resource groups and two alternative beam resource groups.
- cell 0 corresponds to the first bit C 0 in the bitmap included in the first MAC CE
- cell 1 corresponds to the second bit C 1 in the bitmap included in the first MAC CE
- cell 2 corresponds to the first bit C 1 included in the first MAC CE.
- the third bit C 2 in the bitmap of .
- the terminal device detects 3 beam failure detection resource groups in the 3 beam failure detection resource groups configured for cell 0 (beam failure detection resource group #1, beam failure detection resource group #2, and beam failure detection resource group #3) Beam failures occur in all the three candidate beam resource groups, and only the candidate beam resources corresponding to beam failure detection resource group #2 and the candidate beam resources corresponding to beam failure detection resource group #3 exist in the three candidate beam resource groups.
- beam failure detection resource group #3 corresponds to the first byte of the 3 bytes corresponding to the first bit C 0
- beam failure detection resource group #2 corresponds to the second word of the 3 bytes corresponding to the first bit C 0
- Section corresponding to the beam failure detection resource group #3 corresponds to the 3rd byte in the 3 bytes corresponding to the first bit C0 .
- the terminal device detects 1 beam failure detection resource group (ie, the beam failure detection resource group) in the 2 beam failure detection resource groups (beam failure detection resource group #1 and beam failure detection resource group #2) configured for cell 1 #2) A beam failure occurs, and in the three candidate beam resource groups, only the candidate beam resources corresponding to the beam failure detection resource group #1 and the candidate beam resources corresponding to the beam failure detection resource group #3 exist, wherein the beam The failure detection resource group # 1 corresponds to 1 byte corresponding to the second bit C1.
- the terminal device detects that no beam failure has occurred in the two beam failure detection resource groups configured for cell 2, so there is no byte corresponding to the third bit C 2 in the first MAC CE.
- the value of a bit in the bitmap corresponding to the multiple TRP cells is equal to 1, indicating that beam failure occurs in the multiple TRP transmissions, and the value of one bit in the bitmap corresponding to the multiple TRP transmissions is defined.
- a value equal to 0 indicates that no beam failure has occurred for the multiple TRP transmissions.
- the value of the fifth field in the first byte of the multiple bytes corresponding to the one bit is equal to 1, indicating that the multiple beams corresponding to the first byte fail to detect multiple beam failures in the resource group
- the value of the fifth field in the first byte of the multiple bytes corresponding to one bit is equal to 0, indicating that the first byte corresponds to multiple beam failure detection resources Only one beam failure detection resource group in the group has a beam failure.
- the specific contents of the 3 bytes corresponding to the above-mentioned first bit C 0 and the 2 bytes corresponding to the above-mentioned second bit C 1 can be referred to FIG.
- the E field is an example of the above-mentioned fourth field
- the T 1 , T 2 or T 3 field is an example of the above seventh field
- the AC 1 , AC 2 or AC 3 field is an example of the above seventh field
- the alternative RS ID 1 field or the alternative RS ID 2 field is the above An example of the eighth field.
- the candidate RS ID 2 field of the first byte of the 3 bytes corresponding to the first bit C 0 is empty, that is, the first byte of the 3 bytes corresponding to the first bit C 0
- the AC 1 field indicates that there is no candidate beam resource that meets the quality requirement in the candidate beam resource group corresponding to the byte where this field is located.
- FIGS. 10 and 11 are described by taking “a bit in the bitmap included in the third type of the first MAC CE corresponds to a field, and the field corresponds to a cell” as an example.
- the first MAC CE of the third type in the above-mentioned FIG. 10 and FIG. 11 includes multiple fields, each field in the multiple fields corresponds to a cell, and each field adopts Multiple bits (2 bits or more than 2 bits), in this case, the multiple fields can be regarded as a bitmap as a whole, and one "bit" in the one bitmap is equal to one "bit” field", which includes multiple bits. 10 and FIG.
- the format of the first MAC CE obtained according to the definition of the format of the third type of the first MAC CE provided by the embodiment of the present application belongs to the format of the MAC CE claimed by the embodiment of the present application.
- the format of the first MAC CE of the first type, the format of the first MAC CE of the second type, and the format of the first MAC CE of the third type provided by the embodiments of the present application are described in detail.
- the description is given by taking "a bit in the bitmap included in the first MAC CE corresponds to a field, and this field corresponds to a cell (for example, a multi-TRP cell or a single-TRP cell)" as an example.
- the first MAC CE of the fourth type is abbreviated as the first MAC CE of the fourth type.
- the above-mentioned fourth type of the first MAC CE format includes one or more fields, and each field corresponds to a configured cell.
- the above-mentioned one or more fields can be regarded as a bitmap as a whole (for example, the bitmap in the MAC CE format shown in FIG. 6 ), and multiple bits in the bitmap are regarded as one field.
- the cell corresponding to the one field is a single TRP cell, the field is a null value, the terminal device ignores the value of the field, and regards the field as a reserved field without information.
- the terminal device regards the value of this field as the first value.
- the first value is used to indicate that no beam failure has occurred in the cell corresponding to this field, for example, the first value may be equal to 00, 01, 10 or 11.
- the above method can also be used, that is, the field corresponding to the cell is null or defaults to the first value.
- the value of this field is used to indicate the number of TRPs that have failed beams in this cell, or the value of this field is used to indicate that multiple beams of this cell have failed.
- the number of beam failure detection resource groups in which beam failures are detected in the detection resource group, or the value of this field is used to indicate the number of bytes corresponding to the cell in the MAC CE.
- the first byte corresponds to the first beam failure detection resource group
- the second byte corresponds to the second beam failure detection resource group.
- the value of this field is equal to 00, indicating that the number of TRPs in the cell with beam failure is 0, or indicating that the number of beam failure detection resource groups that have detected beam failure is 0, or indicating that the number of bytes corresponding to the cell in the MAC CE is 0 0, the value of this field is equal to 01, indicating that the number of TRPs in the cell with beam failures is 1, or the number of beam failure detection resource groups that have detected beam failures is 1, or the number of bytes corresponding to the cell in the MAC CE is 1.
- this field is equal to 10, indicating that the number of TRPs in the cell with beam failures is 2, or the number of beam failure detection resource groups that have detected beam failures is 2, or the number of bytes corresponding to the cell in the MAC CE is 2. 2, and so on.
- the field can also be used to indicate the beam failure situation in the corresponding cell.
- the beam failure situation includes: two. There is no beam failure in the first beam failure detection resource group, a beam failure occurs in the first beam failure detection resource group, a beam failure occurs in the second beam failure detection resource group, and a beam failure occurs in both beam failure detection resource groups.
- the one field may include 2 bits, and the value of the one field may be one of 00, 01, 10, and 11, and each value is used to indicate one of the above four situations.
- 00 indicates that no beam failure has occurred in both beam failure detection resource groups
- 01 indicates that a beam failure has occurred in the first beam failure detection resource group
- 10 indicates that a beam failure has occurred in the second beam failure detection resource group
- 11 indicates that both Beam failure occurs in all beam failure detection resource groups.
- 00 indicates that no beam failure has occurred in the two beam failure detection resource groups
- 10 indicates that a beam failure has occurred in the first beam failure detection resource group
- 01 indicates that a beam failure has occurred in the second beam failure detection resource group
- 11 Indicates that beam failure has occurred in both beam failure detection resource groups.
- the two bits of one field can also be regarded as two independent fields of 1 bit.
- the two 1 bits may be two consecutive bits or two discontinuous bits.
- Each 1-bit field respectively indicates whether a beam failure occurs in a corresponding beam failure detection resource group.
- the first bit corresponds to the first beam failure detection resource group, and the second bit corresponds to the second beam failure detection resource group; or, the first bit corresponds to the second beam failure detection resource group, and the second bit corresponds to the second beam failure detection resource group.
- the first bit corresponds to the first beam failure detection resource group, and the second bit corresponds to the second beam failure detection resource group.
- a bit value of 0 indicates that no beam failure has occurred in the corresponding beam failure detection resource group, and a bit value of 1 indicates that a beam failure has occurred in the corresponding beam failure detection resource group; or, a bit value of 0 indicates that the corresponding beam failure detection resource group has When a beam failure occurs, the bit value is 0, indicating that no beam failure occurs in the corresponding beam failure detection resource group.
- the beam failure condition indicated by this field is that both beam failure detection resource groups have beam failures
- there are two bytes in the MAC CE which are used to carry the two TRPs of the cell or the two beam failure detection resource groups. Beam failure recovery information.
- the first byte corresponds to the first beam failure detection resource group
- the second byte corresponds to the second beam failure detection resource group.
- the above-mentioned fourth type of the first MAC CE format includes one or more fields, and each field corresponds to a multi-TRP cell.
- the above-mentioned one or more fields can be regarded as a bitmap as a whole, and multiple bits in the bitmap are regarded as one field.
- the correspondence between each field and each multi-TRP cell may be that the i-th field corresponds to the i-th multi-TRP cell or the multi-TRP cell with the i-th smallest index or the multi-TRP cell with the i-th largest index.
- the value of each field is used to indicate the number of TRPs in which beam failures occur in the corresponding cell, or the number of beam failure detection resource groups in which beam failures are detected in multiple beam failure detection resource groups of the corresponding cell, or the number of beam failure detection resource groups in which beam failures are detected.
- the number of bytes corresponding to the corresponding cell in the MAC CE is equal to 00, indicating that the number of TRPs in the corresponding cell with beam failures is 0, or the number of beam failure detection resource groups in which beam failures are detected is 0, or the number of bytes corresponding to the corresponding cell in the MAC CE is 0 0, the value of this field is equal to 01, indicating that the number of TRPs with beam failures in the corresponding cell is 1, or the number of beam failure detection resource groups where beam failures are detected is 1, or the number of bytes corresponding to the corresponding cell in the MAC CE is 1.
- this field is equal to 10, indicating that the number of TRPs in the corresponding cell with beam failures is 2, or the number of beam failure detection resource groups in which beam failures are detected is 2, or the number of bytes corresponding to the corresponding cell in the MAC CE is 2 2, and so on.
- the above-mentioned first MAC CE may further include a fifth field.
- the above-mentioned first MAC CE may further include a sixth field.
- the above-mentioned first MAC CE further includes a seventh field.
- the above-mentioned first MAC CE further includes an eighth field.
- the above-mentioned one field occupies multiple (2 or more) bits in the above-mentioned bitmap.
- the first MAC CE in the above-mentioned fourth type may include any one of the above-mentioned fields or any kind of fields, which is not specifically limited.
- the first MAC CE in the above fourth type may only include the above fifth field.
- the first MAC CE in the above-mentioned fourth type may only include the above-mentioned seventh field and the above-mentioned eighth field.
- the specific functions of the fifth field, the sixth field, the seventh field and the eighth field included in the first MAC CE in the above-mentioned fourth type can be found in the first MAC CE in the above-mentioned second type.
- the fifth field, the specific functions of the seventh field and the eighth field, and referring to the sixth field included in the first MAC CE in the third type above, the specific functions of the seventh field and the eighth field are not mentioned here. Describe in detail.
- a specific format of a fourth type of the first MAC CE provided by the embodiment of the present application is described below with reference to FIG. 12 .
- 2 bits in the bitmap included in the first MAC CE correspond to a field
- 4 cells are configured for a terminal device with a network device
- M is configured for each cell (M is greater than 1).
- Integer) beam failure detection resource groups and M candidate beam resource groups are taken as examples to introduce the format of the fourth type of the first MAC CE provided by the embodiment of the present application. Among them, these four cells can be understood as all multi-TRP cells.
- the fourth type of first MAC CE may include: 4 fields, which are respectively denoted as: C 0 , C 1 , C 2 , and C 3 , and each field occupies 2 bits, and the 4 fields correspond to 4 cells one-to-one), and one or more bytes corresponding to each field (i is an integer greater than or equal to 0 and less than or equal to 3), wherein the cell corresponding to each field is a multi-TRP cell with beam failure, and the number of bytes corresponding to each field is the same as the number of beam failures in the multi-TRP cell corresponding to each field.
- the four fields included in the first MAC CE of the fourth type can be regarded as a bitmap as a whole (for example, the bitmap included in the MAC CE shown in FIG. 6 ).
- the field C i corresponds to 1 byte
- the 1 byte can be It includes: a T field (ie, an example of the fifth field), an AC 1 field (ie, an example of the seventh field) and an alternative RS ID 1 field (ie, an example of the eighth field), wherein the T field
- the information (for example, the index of the TRP) used to indicate the 1 TRP where beam failure occurs, and the AC 1 field is used to indicate that there is an alternative beam that meets the quality requirements in the alternative beam resource group corresponding to the 1 byte or
- the candidate beam resources that meet the quality requirements, the candidate RS ID 1 field is used to indicate the information of the candidate beams that meet the quality requirements determined in
- the 1 byte may further include: a T field (ie, an example of the fifth field) and an AC 1 field (ie, an example of the seventh field).
- the AC 1 field is used to indicate the In the candidate beam resource group corresponding to 1 byte, there is no candidate beam that meets the quality requirements or candidate beam resources that meet the quality requirements.
- the candidate RS ID corresponding to the 1 byte can also be understood The value of the 1 field is empty.
- the first byte of the M bytes may include: a T field (ie, an example of the fifth field), an AC 1 field (ie, an example of the seventh field), and an alternative RS ID 1 field (ie, an example of the seventh field).
- the value of the T field is empty, at this time, it is not necessary to determine the information of the beam failure detection resource group that detects the occurrence of beam failure through the T field, but according to the M bytes and M
- the correspondence between the beam failure detection resource groups or the M candidate beam resource groups determines the beam failure detection resource group or the candidate beam resource group corresponding to each byte, and the specific correspondence can refer to the foregoing.
- the AC 1 field is used to indicate that the candidate beam resource group corresponding to the 1 byte has candidate beams that meet the quality requirements or the candidate beam resources that meet the quality requirements
- the candidate RS ID 1 field is used to indicate the 1 word Information about the candidate beams that meet the quality requirement or information about the candidate beam resources that meet the quality requirement determined in the candidate beam resource group corresponding to the section.
- Each of the M bytes except the first byte may include: an R field, an AC field and an alternative RS ID field.
- the second byte may include: an R field, an AC 2 field and an alternative RS ID 2 field, where the R field is a reserved field and has no specific meaning , the AC 2 field is used to indicate that there are alternative beams that meet the quality requirements or alternative beam resources that meet the quality requirements in the alternative beam resource group corresponding to the 2 bytes, and the alternative RS ID 2 field is used to indicate that the two The information of the candidate beams that meet the quality requirements or the information of the candidate beam resources that meet the quality requirements determined in the candidate beam resource group corresponding to the byte.
- the second byte may also include: an R field and an AC 2 field, where the R field is a reserved field and has no specific meaning, and the AC 2 field is used to indicate the candidate beam corresponding to the two bytes There is no information about the candidate beams that meet the quality requirements or the information of the candidate beam resources that meet the quality requirements in the resource group.
- the second byte also includes the candidate RS ID 2 field, but the Select the value of the RS ID 2 field to be empty.
- the above-mentioned T field may also be located in other bytes except the first byte among the M bytes.
- the T field in the first byte of the M bytes can be exchanged with the R field in the second byte of the M bytes.
- the T field is located in the 2nd byte.
- the T field, the AC field, and the R field use one bit, and the alternative RS ID field uses 6 bits as an example for introduction.
- the number of bits used in the above fields is also Other values may be used, which are not specifically limited.
- the number of bits used for the same field (for example, the AC field) in different bytes included in the MAC CE in FIG. 12 may also be different.
- the following introduces a specific format of another fourth type of first MAC CE provided by the embodiment of the present application with reference to FIG. 13 .
- 2 bits in the bitmap included in the first MAC CE correspond to a field
- 4 cells are configured for a terminal device with a network device
- M is configured for each cell (M is greater than 1).
- Integer) beam failure detection resource groups and M candidate beam resource groups are taken as examples to introduce the format of the fourth type of the first MAC CE provided by the embodiment of the present application. Among them, these four cells can be understood as all multi-TRP cells.
- the fourth type of first MAC CE may include: 4 fields, which are respectively denoted as: C 0 , C 1 , C 2 , and C 3 , and each field occupies 2 bits, and the 4 fields are in one-to-one correspondence with the 4 cells), and one or more bytes corresponding to any field C i (i is an integer greater than or equal to 0 and less than or equal to 3), wherein any of the fields
- the cell corresponding to C i is a multi-TRP cell with beam failure, and the number of bytes corresponding to any field C i is the same as the number of beam failures in the multi-TRP cell corresponding to any field C i .
- the four fields included in the first MAC CE of the fourth type can be regarded as a bitmap as a whole (for example, the bitmap included in the MAC CE shown in FIG. 6 ).
- the bytes may include: a T field (ie, an example of the above-mentioned sixth field), an AC field (ie, an example of the above-mentioned seventh field) and an alternative RS ID field (ie, an example of the above-mentioned eighth field), wherein T field is used to indicate the beam failure detection resource group corresponding to the byte where the T field is located, or the T field is used to indicate the alternative beam resource group corresponding to the byte where the T field is located, and the AC field is used to indicate the byte where the AC field is located corresponds to There is an alternative beam that meets the quality requirement or an alternative beam resource that meets the quality requirement in the alternative beam resource group, and the alternative RS ID field is used to indicate that the RS ID field is located in the corresponding alternative
- the 1st byte among the M bytes includes a T1 field (ie, an example of the sixth field above), an AC1 field and an alternative RS ID1 field.
- the second byte among the M bytes includes a T 2 field (ie, an example of the sixth field above), an AC 2 field and an alternative RS ID 2 field.
- each of the M bytes may further include: a T field (that is, an example of the sixth field) and an AC field (that is, an example of the seventh field).
- the AC field It is used to indicate that there is no alternative beam that meets the quality requirements or alternative beam resources that meet the quality requirements in the candidate beam resource group corresponding to the byte where the AC field is located. In this case, you can also understand the byte where the AC field is located.
- the value of the corresponding candidate RS ID 1 field is null.
- FIG. 12 and FIG. 13 are for illustration only, and do not constitute any limitation on the format of the fourth type of the first MAC CE provided in the embodiment of the present application.
- the number of bits in the bitmap included in the first MAC CE of the first type corresponds to a field, and the multiple fields correspond to a cell (for example, , multi-TRP cell or single-TRP cell)" as an example.
- the format of the first MAC CE of the fifth type is the format of the first MAC CE of the fifth type:
- the fifth type of the first MAC CE provided by the embodiment of the present application includes: a bitmap. It can be understood that the definition of a bitmap included in the first MAC CE of the fifth type is the same as the definition of a bitmap included in the first MAC CE of the first type, and is not described in detail here. For details, refer to the definition of a bitmap included in the first MAC CE of the first type above. Or, the definition of a bitmap included in the first MAC CE of the fifth type is the same as the definition of a bitmap included in the first MAC CE of the fourth type, and the content not described in detail here is specific Reference may be made to the definition of a bitmap included in the above-mentioned fourth type of first MAC CE.
- any bit in the above bitmap corresponds to one or more bytes
- the first MAC CE further includes a tenth field, and the tenth field is used to indicate the type of beam failure.
- the type of beam failure may include: the first beam failure detection in the M beam failure detection resource groups Beam failure occurs in a resource group, M beam failure detection occurs in the second beam failure detection resource group Beam failure occurs in the resource group, M beam failure detection occurs in two beam failure detection resource groups Both beam failures in the resource group are detected, etc. .
- the tenth field may be located in the first byte of the above-mentioned one or more bytes.
- the tenth field may include 2 bits, for example, the tenth field may be the first 2 bits in the first byte. It can be understood that, the tenth field may also include more bits (eg, 3 bits, etc.), which is not specifically limited.
- each of the 2 bits corresponds to one beam failure detection resource group in M (M is equal to 2) beam failure detection resource groups, and each bit It is used to indicate whether a beam failure occurs in a corresponding beam failure detection resource group.
- M is equal to 2
- beam failure detection resource groups are configured for the cell
- the values of the tenth field correspond to four types.
- Field value: 00, 01, 10, 11, each of these four field values can be used to indicate any of the following: a beam failure occurs in the first beam failure detection resource group, and the second beam failure detection A beam failure occurs in a resource group, and beam failure occurs in both beam failure detection resource groups.
- 01 indicates that a beam failure occurred in the first beam failure detection resource group
- 10 indicates that a beam failure occurred in the second beam failure detection resource group
- 00 or 11 indicates that a beam failure occurred in both beam failure detection resource groups.
- 10 indicates that a beam failure occurs in the first beam failure detection resource group
- 01 indicates that a beam failure occurs in the second beam failure detection resource group
- 00 or 11 indicates that beam failure occurs in both beam failure detection resource groups.
- 00 indicates that a beam failure occurred in the first beam failure detection resource group
- 01 indicates that a beam failure occurred in the second beam failure detection resource group
- 10 or 11 indicates that both beam failure detection resource groups have beam failures.
- the tenth field when the tenth field includes 2 bits (that is, the tenth field occupies 2 bits), and 2 (that is, M is equal to 2) beam failure detection resource groups are configured for the cell, the tenth field also contains 2 bits. It can be regarded as two 1-bit independent fields, each 1-bit field indicates whether a beam failure occurs in a corresponding beam failure detection resource group, wherein the two 1-bits can be two consecutive bits, or are two non-consecutive bits.
- the first bit corresponds to the first beam failure detection resource group, and the second bit corresponds to the second beam failure detection resource group; or, the first bit corresponds to the second beam failure detection resource group, and the second bit corresponds to the second beam failure detection resource group.
- a bit value of 0 indicates that no beam failure has occurred in the corresponding beam failure detection resource group
- a bit value of 1 indicates that a beam failure has occurred in the corresponding beam failure detection resource group
- a bit value of 0 indicates that the corresponding beam failure detection resource
- the bit value is 0, indicating that no beam failure occurs in the corresponding beam failure detection resource group.
- the tenth field includes 2 bits and M is equal to 2 as an example for description, but the functions of the tenth field provided by the embodiments of the present application are not limited. In some implementations, the tenth field may also include a greater number of bits, eg, 3 bits, and so on.
- any bit corresponds to two bytes; when the tenth field indicates M beam failure detection resource groups When a beam failure in a resource group detects a beam failure in the resource group, any bit corresponds to one byte. That is, when M is equal to 2, and the type of beam failure indicated by the tenth field is that both beam failure detection resource groups in the M beam failure detection resource groups have beam failures, there are two beam failure detection resource groups in the first MAC CE. Byte, used to carry the beam failure recovery information of the two TRPs or two beam failure detection resource groups of the cell.
- the first byte corresponds to the first beam failure detection resource group
- the second byte corresponds to the second beam failure detection resource group.
- the beam failure information indicated in the tenth field is that a beam failure occurs in one of the M beam failure detection resource groups, for example, a beam failure occurs in the first beam failure detection resource group or a beam failure occurs in the second beam failure detection resource group.
- a beam failure occurs in each beam failure detection resource group
- there is a byte in the first MAC CE for carrying the beam failure recovery information of the TRP or the beam failure detection resource group in which the beam failure occurred.
- the beam failure recovery information includes indication information of whether there is an alternative beam resource that meets the quality requirement, and information about the alternative beam resource that meets the quality requirement.
- each of the one or more bytes further includes a seventh field, and the seventh field is used to indicate whether there is an alternative beam that meets the quality requirements in the alternative beam resource group corresponding to each byte. resource.
- the seventh field is used to indicate whether there is an alternative beam that meets the quality requirements in the alternative beam resource group corresponding to each byte. resource.
- the seventh field reference may be made to the first MAC CE format of the second type.
- each byte in the one or more bytes further includes an eighth field, and the eighth field is used to indicate an alternative beam resource group corresponding to each byte that meets the quality requirements determined.
- Information about beam resources For the specific features of the eighth field, reference may be made to the first MAC CE format of the second type.
- the fifth type of the first MAC CE includes: a bitmap (including 8 bits (that is, 8 fields, each field adopts one bit) , respectively recorded as: C 0 , C 1 , C 2 , C 3 , C 4 , C 5 , C 6 and C 7 , and the 8 bits correspond to 8 cells one-to-one), and the one bit map One or more bytes corresponding to any bit C i (i is an integer greater than or equal to 0 and less than or equal to 7), wherein the cell corresponding to any bit C i is a multi-TRP cell where beam failure occurs, any The number of bytes corresponding to one bit C i is the same as the number of beam failures in the multi-TRP cell corresponding to any one bit C i .
- the section may include: E field (ie, an example of the tenth field above), AC 1 field (ie, an example of the seventh field above) and an alternative RS ID 1 field (ie, the eighth field in the first definition method above) example of a field).
- the E field is used to indicate that the first beam failure detection resource group in the M (M is an integer greater than 1, for example, M is equal to 2) beam failure detection resource groups of the cell corresponding to the any bit C i occurs beams Failure
- the E field may include 2 bits, each of the 2 bits corresponds to a beam failure detection resource group, and 1 of the 2 bits (for example, the 1 bit is equal to 0) is used to indicate the corresponding beam failure No beam failure has occurred in the detection resource group, and another 1 bit in the 2 bits (for example, the 1 bit is equal to 1) is used to indicate that a beam failure has occurred in the corresponding beam failure detection resource group.
- the AC 1 field includes 1 bit, and the AC 1 field is used to indicate that a candidate beam resource that meets the quality requirement exists in the candidate beam resource group corresponding to the 1 byte.
- the candidate RS ID 1 field includes 5 bits, and the candidate RS ID 1 field is used to indicate the information of the candidate beam resource that meets the quality requirement determined in the candidate beam resource group corresponding to the 1 byte.
- one byte corresponding to any bit C i may further include a reserved field, and the value of the reserved field is empty.
- the first MAC CE of the fifth type as shown in (b) of FIG. 14 includes a bitmap whose definition is the same as the first MAC CE of the fifth type as shown in (a) of FIG. 14 .
- the definition of a bitmap included in a MAC CE is the same, and details are not repeated here.
- the number of beam failures in the multi-TRP cell corresponding to any bit C i is M (M is an integer greater than 1, for example, M is equal to 2), then the number of any bit C i The M bytes corresponding to i .
- the first byte of the M bytes may include: an E field (ie, an example of the tenth field above), an AC 1 field (ie, an example of the seventh field above) and an alternative RS ID 1 field (ie, an example of the above-mentioned seventh field) , an example of the eighth field in the first definition method above).
- the E field is used to indicate that beam failure occurs in M (M is an integer greater than 1, for example, M is equal to 2) beam failure detection resource groups of the cell corresponding to any bit C i .
- the E field is used to indicate that a beam failure occurs in M (M is an integer greater than 1, for example, M is equal to 2) beam failure detection resource groups of the cell corresponding to the any bit C i , and the E field may include M bits, Each of the M bits corresponds to a beam failure detection resource group, and each of the M bits is used to indicate that a beam failure occurs in the corresponding beam failure detection resource group.
- Each byte after the first byte may include: an R field (ie, a reserved field), an AC field (ie, an example of the seventh field above) and an alternative RS ID field (ie, the first definition above) An example of the eighth field in the method).
- bitmap included in the first MAC CE of the fifth type shown in (a) in FIG. 15 and (b) in FIG. 15 is the same as that shown in (a) in FIG. 14 .
- the definition of a bitmap included in the first MAC CE of the fifth type is the same, and for details that are not described in detail, refer to the description of the bitmap in (a) in FIG. 14 above.
- the 1 word A section may include: an E field (ie, an example of the tenth field above) and an alternative RS ID 1 field (ie, an example of the eighth field in the second definition manner above).
- the E field is used to indicate that the first beam failure detection resource group in the M (M is an integer greater than 1, for example, M is equal to 2) beam failure detection resource groups of the cell corresponding to the any bit C i occurs beams Failure
- the E field may include 2 bits, each of the 2 bits corresponds to a beam failure detection resource group, and 1 of the 2 bits (for example, the 1 bit is equal to 1) is used to indicate the corresponding beam failure No beam failure has occurred in the detection resource group, and another 1 bit of the 2 bits (for example, the 1 bit is equal to 0) is used to indicate that a beam failure has occurred in the corresponding beam failure detection resource group.
- the optional RS ID 1 field can occupy 6 bits, and the optional RS ID 1 field can be used to indicate that there is no candidate beam resource that meets the quality requirement in the candidate beam resource group corresponding to the 1 byte, and that the candidate beam resource that meets the quality requirement does not exist. Select beam resource information.
- the function of the candidate RS ID 1 field includes: the function of the AC 1 field in the first byte shown in (a) of FIG. 14 , and the function of the first byte shown in (a) of FIG. 14 Function of the alternate RS ID 1 field in octets.
- one byte corresponding to any bit C i may further include a reserved field, and the value of the reserved field is empty.
- the number of beam failures in the multi-TRP cell corresponding to any bit C i is M (M is an integer greater than 1, for example, M is equal to 2), then the any bit C i The corresponding M bytes.
- the first byte of the M bytes may include: an E field (that is, an example of the tenth field above) and an alternative RS ID 1 field (that is, an example of the eighth field in the second definition manner above) ).
- the E field is used to indicate that beam failure occurs in M (M is an integer greater than 1, for example, M equals 2) beam failure detection resource groups of the cell corresponding to any bit C i , and the E field may include M bits , each of the M bits corresponds to a beam failure detection resource group, and each of the M bits is used to indicate that a beam failure occurs in the corresponding beam failure detection resource group.
- Each byte after the first byte may include: an R field (ie, a reserved field) and an alternative RS ID field (ie, an example of the eighth field in the above-mentioned second definition manner).
- FIG. 14 and FIG. 15 are for illustration only, and do not constitute any limitation on the specific format of the fifth type of the first MAC CE provided in the embodiment of the present application.
- C i in the bitmap shown in (a) of FIG. 14 may occupy a larger number of bits, for example, C i may also occupy 2 bits.
- C i in the bitmap shown in (a) of FIG. 15 may occupy a larger number of bits, for example, C i may also occupy 2 bits.
- each type of first MAC CEs is only applicable to the terminal equipment reporting beam failure recovery information corresponding to multiple TRP cells.
- each type of the first MAC CE provided in the embodiment of the present application is not used by the terminal equipment to report beam failure recovery information corresponding to a single TRP cell.
- the formats of the above-mentioned five types of the first MAC CE do not constitute any limitation on the formats of the first MAC CE provided by the embodiments of the present application. For example, a greater number of bits (eg, 3 bits) in the bitmap corresponds to one field (eg, the fourth field) in some implementations.
- a first MAC CE format may include a 2-bit field in a fourth type of first MAC CE for indicating beam failure information in a cell, and a fifth field in a second type of first MAC , this first MAC CE format is also within the scope of protection of this application.
- first MAC CE may also include any one or any of the following fields:
- Field 1 is used to indicate the number of TRPs with beam failures in the multi-TRP cell, or field 1 is used to indicate the number of beam failure detection resource groups with beam failures in the multi-TRP cell.
- Field 2 is used to indicate the beam failure type that occurs in the multi-TRP cell.
- the beam failure type can include one or more of the following: a single TRP in the multi-TRP cell has a beam failure, and some TRPs in the multi-TRP cell Beam failure occurs, and beam failure occurs for all TRPs in a multi-TRP cell.
- the beam failure types can also include one or more of the following: Beam failure occurs in the first TRP, beam failure occurs in the second TRP, and beam failure occurs in both TRPs Fail, no beam failure has occurred for both TRPs.
- field 2 includes 2 bits, the field 2 corresponds to 4 field values, and each field value corresponds to one of the above-mentioned types.
- the beam failure types may also include one or more of the following: beam failure occurs in the first TRP, beam failure occurs in the second TRP, and beam failure occurs in both TRPs.
- Field 2 includes 2 bits, corresponding to 4 field values, wherein three field values respectively indicate that the first TRP has a beam failure, the second TRP has a beam failure, and both TRPs have a beam failure.
- Field 3 a TRP corresponding to field 3, field 3 is used to indicate whether beam failure occurs in the TRP corresponding to field 3.
- field 3 corresponds to a beam failure detection resource group, and field 3 is used to indicate whether a beam failure is detected in the beam failure detection resource group corresponding to field 3.
- the number of the above fields 3 may be M, respectively corresponding to M TRPs, or respectively corresponding to M beam failure detection resource groups, or respectively corresponding to M TRPs, or respectively corresponding to M CORESET groups.
- Field 4 is used to indicate the information of the TRP in which the beam failure occurs, such as the index of the TRP.
- the index of the above-mentioned TRP may be the index of a beam failure detection resource group, that is, the index of the beam failure detection resource group corresponding to the TRP; it may also be the index of an alternative beam resource group, that is, the corresponding candidate beam resource group of the TRP. index; it can also be an index of a CORESET group, that is, CORESETPoolIndex.
- a plurality of the above fields may also be included to indicate a plurality of TRPs with beam failures or the indexes of beam failure detection resource groups/alternative beam resource groups/CORESET groups corresponding to the TRPs.
- the information type of the TRP in which beam failure occurs is not limited.
- the information of the TRP in which the beam failure occurred may be the index information of the TRP in which the beam failure occurred
- the index of the TRP may be the index of a beam failure detection resource group, that is, the index of the beam failure detection resource group corresponding to the TRP
- the index of the TRP may also be an index of an alternative beam resource group, that is, an index of an alternative beam resource group corresponding to the TRP
- the index of the TRP may also be an index of a CORESET group, that is, CORESETPoolIndex.
- the above-mentioned first MAC CE may further include a plurality of above-mentioned fields 4.
- the first MAC CE may include three fields 4, wherein the first field 4 is used to indicate the index of the beam failure detection resource group corresponding to the TRP in which beam failure occurs, and the second field 4 is used to indicate the occurrence of beam failure.
- the index of the candidate beam detection resource group corresponding to the TRP, and the third field 4 is used to indicate the index of the CORESET group corresponding to the TRP in which beam failure occurs.
- Field 5 is used to indicate the number of candidate beam resources reported by the terminal device.
- Field 6 corresponds to a TRP, and field 6 is used to indicate whether a TRP corresponding to field 6 has candidate beam resources that meet the quality requirements.
- field 6 corresponds to an alternative beam resource group, and field 6 is used to indicate whether there is an alternative beam resource that meets the quality requirement in the alternative beam resource group corresponding to this field 6 .
- the remaining fields in the byte where this field is located have no specific meaning and can be ignored by the terminal device.
- the number of the above-mentioned fields 6 may be M, respectively corresponding to M TRPs, or respectively corresponding to M beam failure detection resource groups, or respectively corresponding to M TRPs, or respectively corresponding to M CORESET groups.
- Field 7 is used to indicate the information of the alternative beam resources.
- the number of the above fields 7 may be M, respectively corresponding to M TRPs, or respectively corresponding to M beam failure detection resource groups, or respectively corresponding to M TRPs, or respectively corresponding to M CORESET groups.
- a field value of field 7 may be reserved to indicate that there is no alternative beam resource that meets the quality requirement. For example, when the values of all bits corresponding to field 7 are all 0 or all 1, it indicates that there is no candidate beam resource that meets the quality requirement.
- the remaining field values indicate information about a candidate beam resource that meets the quality requirement.
- the multiple candidate beam resources indicated by the above-mentioned multiple fields 7 can be understood as resources in multiple candidate beam resource groups, that is, the The multiple candidate beam resources are in one-to-one correspondence with the multiple candidate beam resource groups.
- the arrangement order of the above-mentioned multiple candidate beam resources in the first MAC CE may be performed according to the order of the candidate beam resource groups corresponding to the above-mentioned multiple candidate beam resources (for example, index size order or configuration order) arrangement.
- the above information on the candidate beam resources may be, but not limited to, an index of the candidate beam resources.
- Field 8 is used to indicate which TRP the reported candidate beam resource belongs to, or field 8 is used to indicate which candidate beam resource group the reported candidate beam resource belongs to.
- the first MAC CRE may include multiple fields 8, and the multiple fields 8 are used to indicate which TRP the multiple reported alternative beam resources belong to respectively. , or, the multiple fields 8 are used to indicate which candidate beam resource group the multiple candidate beam resources respectively belong to.
- Method 1 The terminal device sends another first MAC CE to notify the network device that another beam failure detection resource group also has a beam failure, and reports the information of the alternative beam resources corresponding to the beam failure detection resource group, such as whether it exists The candidate beam resources that meet the quality requirements and the specific candidate beam resource information.
- the terminal device can send another first MAC CE to notify the network device that beam failures have occurred in both beam failure detection resource groups, and report the information about the alternative beam resources corresponding to the two beam failure detection resource groups, such as Whether there are alternative beam resources that meet the quality requirements and information on specific alternative beam resources. It can also be specified that the terminal device does not send other first MAC CEs until the previous beam failure recovery procedure is completed. In other words, it is necessary for the terminal device to send another first MAC CE response message after receiving the response message of the previous first MAC CE, or after receiving the response message and after a certain period of time, such as the time corresponding to 28 symbols. MAC CE to notify the network device that another beam failure detection resource group also has a beam failure.
- method 1 and method 2 which one the terminal device uses can be determined according to conditions. Specifically, when the first condition is satisfied, method 1 is adopted. The second condition is adopted when the second condition is satisfied.
- the first condition can be a combination of one or more of the following:
- the terminal device has received the corresponding response message after sending the previous first MAC CE;
- the current time has not reached a certain time since receiving the response message of the previous first MAC CE, such as the time corresponding to 28 symbols.
- the second condition can be a combination of one or more of the following:
- the terminal device After the terminal device sends the previous first MAC CE, it has not yet received the corresponding response message.
- the terminal device may also perform the following step 540 (not shown in FIG. 5 ):
- the terminal device When M is equal to 1, and the occurrence of beam failure is detected in the M beam failure detection resource groups, the terminal device sends the beam failure recovery information corresponding to the cell through the second MAC CE.
- the method described in the foregoing step 540 can be applied to the communication system shown in FIG. 1 . That is to say, the execution subject of step 540 may include the network device 110 in FIG. 1 and the terminal device 120a and/or the terminal device 120b in FIG. 1 . It can be further specified that the above method is only applicable to Scell. Specifically, a beam failure is detected in a cell where only a single beam failure detection resource group is configured.
- the second MAC CE is used to generate beam failure recovery information; if the cell is a Pcell, the random access procedure is adopted.
- the beam failure recovery information occurs; if the cell is a PScell, the beam failure recovery information is generated using the second MAC CE, or the beam failure recovery information is generated using the random access process.
- the above-mentioned second MAC CE includes a bitmap, and for any bit in the bitmap, if the configuration information of the cell corresponding to the any bit includes M beam failure detection resource groups and M alternative beam resource groups , M is equal to 1, when the value of any bit is the first value, it indicates that the cell corresponding to the bit does not have a beam failure, and when the value of any bit is the second value, it indicates that the cell corresponding to the bit has a beam failure, wherein, The first value is not the same as the second value. For example, the first value is equal to 0 and the second value is equal to 1. For example, the first value is equal to 1 and the second value is equal to 0.
- the 1 byte includes an AC field and an alternative RS ID. field
- the AC field is used to indicate whether the alternative beam resource group corresponding to the 1 byte has an alternative beam resource that meets the quality requirements
- the alternative RS ID field is used to indicate the alternative beam resource group corresponding to the 1 byte.
- the terminal device ignores the value of this bit and regards it as a reserved field with no information. It can also be understood that the value of this bit is the first value by default, and the network device cannot set the value of this bit to another value, or no matter what the value of the bit is set to by the network device, the terminal device regards it as the first value. .
- the first value indicates that no beam failure has occurred in the corresponding cell.
- the terminal device can report the beam failure recovery information corresponding to the single TRP cell in which the beam failure occurs through the second MAC CE of the first type.
- the second MAC CE of the first type is not used to report beam failure recovery information corresponding to a multi-TRP cell in which beam failure occurs.
- the first logical channel identifier LCID corresponding to the above-mentioned first MAC CE provided in the embodiment of the present application is different from the second LCID corresponding to the above-mentioned second MAC CE.
- the second LCID may be 50 or 51
- the first LCID may be any one of the following logical channel identifiers: 35, 36, 37, 38, 39, 40, 41 , 42, 43, 44 or 47.
- the format of the first type of second MAC CE provided in the embodiment of the present application is only applicable to reporting beam recovery information corresponding to beam failure in a single TRP cell.
- the format of the second MAC CE of the second type is the same as the format shown in FIG. 4 above, but the definition of the R field in the format of the second MAC CE of the second type is the same as that shown in the above figure.
- the definitions of the R fields in the format of the MAC CE described in 4 are different, and the format of the second MAC CE of the second type can refer to the format of the MAC CE shown in the above-mentioned FIG. 4 .
- a beam failure recovery reporting method is introduced, that is, the terminal equipment reports the beam failure recovery information of the multi-TRP cell with beam failure through the first MAC CE, and the terminal equipment reports the occurrence of the beam failure through the second MAC CE of the first type. Beam failure recovery information of a single TRP cell with beam failure.
- another beam failure recovery reporting method is introduced, that is, the terminal equipment reports the beam failure recovery information of a single TRP cell and a multi-TRP cell in which beam failure occurs through the second type of second MAC CE. That is to say, no matter whether a beam failure occurs in a single TRP cell or a beam failure occurs in multiple TRP cells, the beam failure recovery information is reported through the second MAC CE of the second type.
- the second type of second MAC CE is introduced below.
- the terminal device can report the beam failure recovery information of a single TRP cell and a multi-TRP cell in which beam failure occurs through the second type of second MAC CE.
- the second MAC CE of the above-mentioned second type includes a bitmap, a bit in the bitmap corresponds to a cell, and the cell can be a single TRP cell or a multi-TRP cell, and the bit is used to indicate whether the cell has a beam fail.
- the value of this bit is equal to 0 or 1.
- it can be defined that the value of this bit is equal to 1 to indicate that a beam failure occurs in the cell, and the value of this bit is equal to 0 to indicate that no beam failure occurs in the cell.
- the value of this bit is equal to 0 to indicate that a beam failure has occurred in the cell, and the value of this bit is equal to 1 to indicate that no beam failure has occurred in the cell.
- the one byte corresponds to the bit, including beam failure recovery information of the cell.
- the one byte may further include a field #1, and the field #1 is used to report whether the candidate beam resource group corresponding to the byte where the one field #1 is located has candidate beam resources that meet the quality requirement.
- the one byte may further include a field #2 (that is, an example of the ninth field above), and the one field #2 is used to report beam failure recovery information corresponding to the cell corresponding to the byte where the one field #2 is located, or , the R field is used to indicate the number of TRPs with beam failures, or the R field is used to indicate the type of beam failures, or the field #2 is a reserved field, that is, the field #2 has no specific meaning.
- the one byte may also include a field #3, and the one field #3 is used to report the candidate beam that meets the quality requirement determined in the candidate beam resource group corresponding to the byte where the one field #3 is located. resource information.
- the AC field is used to represent the one field #1
- the R field is used to represent the one field #2
- the alternative RS ID field is used to represent the one field #3 for description. It can be understood that the above one field# 1.
- the above-mentioned one field #2 and the above-mentioned one field #3 may also be defined by other names, which are not specifically limited.
- the R field in the above-mentioned second MAC CE may be the second bit of the byte where the R field is located.
- the configuration information of the cell corresponding to the bit includes M beam failure detection resource groups and M candidate beam resource groups, M is an integer greater than 1, and the second MAC CE
- the definition of the R field in can be any of the following:
- the R field is used to indicate the information of the TRP in which the beam failure occurred (for example, the index of the TRP in which the beam failure occurred), or the R field is used to indicate the information of the beam failure detection resource group in which the beam failure has been detected, or the R field is used for Indicates the information of the candidate beam resource group corresponding to the reported candidate beam resource.
- the R field is used to indicate the number of TRPs with beam failures, or the R field is used to indicate the types of beam failures, where the types of beam failures include: beam failures occur in a single TRP in a multi-TRP cell, part of or in a multi-TRP cell Beam failure occurs in all TRPs.
- it may be defined that R 1 indicates that a single TRP in a multi-TRP cell has a beam failure
- the terminal device can determine which TRP the candidate beam resource belongs to through the reported index of the candidate beam resource.
- the network device is required to be configured to
- the candidate beam resources of the candidate beam resource group in one cell are numbered across resource groups (for details, refer to step 510 above).
- the format of the second MAC CE of the second type may be the MAC CE shown in (a) of FIG. 16 .
- the second MAC CE of the second type includes a bitmap and 1 byte corresponding to any bit in the one bitmap.
- the one bit map includes 8 bits, which are respectively denoted as: C 0 , C 1 , C 2 , C 3 , C 4 , C 5 , C 6 and C 7 , and these 8 bits are configured with the network equipment to
- the 8 multi-TRP cells of a terminal device are in one-to-one correspondence, wherein the network device configures M beam failure detection resource groups and M candidate beam resource groups for any of the 8 multi-TRP cells, where M is An integer greater than 1, the cell corresponding to any bit is a multi-TRP cell with beam failure.
- M An integer greater than 1
- the cell corresponding to any bit is a multi-TRP cell with beam failure.
- the format of the second type of second MAC CE may be the format shown in (b) of FIG. 16 .
- the configuration information of the cell corresponding to the bit includes M beam failure detection resource groups and M candidate beam resource groups, M is equal to 1, and in the second MAC CE above
- the R field can be understood as a reserved field. In this case, the R field is empty, that is, the R field has no specific meaning.
- the AC field, the R field use one bit, and the alternative RS ID field uses 6 bits as an example for introduction.
- the number of bits used in the above fields may also be other Numerical value, which is not specifically limited.
- the number of bits used for the same field (for example, the AC field) in different bytes included in the MAC CE in FIG. 16 may also be different. That is to say, the above-mentioned FIG. 16 is only for illustration, and does not constitute any limitation on the format of the second MAC CE of the second type provided in the embodiment of the present application.
- the format of the second type of second MAC CE provided in the embodiment of the present application is suitable for reporting beam recovery information corresponding to beam failures in multiple TRP cells and single TRP cells. It can be understood that, if the cell corresponding to any bit in a bitmap included in the second type of second MAC CE is a single TRP cell, then the R field corresponding to any bit has no specific meaning. If the cell corresponding to any bit in a bitmap included in the second MAC CE of the second type is a multi-TRP cell, the R field corresponding to any bit is used to indicate the cell corresponding to the byte where the R field is located. Corresponding beam failure recovery information, or indicating the number of TRPs in which beam failures occurred, or indicating the types of beam failures.
- Method 1 The terminal device reports the beam failure recovery information of the multi-TRP cell with beam failure through the first MAC CE of any of the above types, and reports the beam failure recovery information of the single TRP cell with the beam failure through the second MAC CE of the first type. Beam failure recovery information.
- Method 2 The terminal device reports the beam failure recovery information of the single TRP cell and the multi-TRP cell in which the beam failure occurs through the second MAC CE of the second type.
- the following introduces the third beam failure recovery reporting method. Specifically, when a single TRP in a multi-TRP cell has a beam failure, the first MAC CE of any type described above is used to report beam failure recovery information. When beam failure occurs in all TRPs in the multi-TRP cell, or when beam failure occurs in a single TRP cell, the second MAC CE of the second type above is used to report beam failure recovery information.
- the format of the first MAC CE of any type and the specific format of the second MAC CE of any type of the above are only for illustration and do not constitute any limitation.
- the first MAC CE of any one of the above types or the second MAC CE of any of the above types may further include other fields.
- the multiple fields provided above the first field, the second field, the third field, the The MAC CE obtained by combining the four fields, the fifth field, the sixth field, the seventh field, and the eighth field) belong to the format of the MAC CE claimed in the embodiment of the present application.
- the terminal device can report the beam failure recovery information corresponding to the multi-TRP cell in which beam failure occurs through the first MAC CE of any one type and the second MAC CE of the second type, so as to realize timely It can recover the failed beams in multiple TRP cells.
- the terminal equipment reports the beam failure recovery information corresponding to the single TRP cell in which the beam failure occurs through any one of the above-mentioned second MAC CEs, so that the beam failure in the single TRP cell can be recovered in time.
- each network element such as a transmitter device or a receiver device
- each network element includes hardware structures and/or software modules corresponding to performing each function in order to implement the above functions.
- Those skilled in the art should realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
- the transmitting-end device or the receiving-end device may be divided into functional modules according to the foregoing method examples.
- each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. middle.
- the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation. The following description will be given by taking as an example that each function module is divided corresponding to each function.
- FIG. 17 is a schematic block diagram of a communication apparatus 1000 provided by an embodiment of the present application.
- the communication apparatus 1000 may include a communication unit 1010 and a processing unit 1020 .
- the communication unit 1010 can communicate with the outside, and the processing unit 1020 is used for data processing.
- the communication unit 1010 may also be referred to as a communication interface or a transceiving unit, and the transceiving unit may include a sending unit and a receiving unit, which respectively perform the steps of sending and receiving in the method embodiment.
- the communication interface is used to input and/or output information including at least one of instructions and data.
- the communication device may be a chip or a system of chips.
- the communication interface may be an input/output interface, an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit, etc. on the chip or a chip system.
- the processor may also be embodied as a processing circuit or a logic circuit. Input and output respectively correspond to receiving and sending in the method embodiment.
- the communication apparatus 1000 may implement the steps or processes performed by the terminal device corresponding to the above method embodiments, for example, it may be a terminal device, or a chip or a chip system configured in the terminal device or circuit. In this case, the communication apparatus 1000 may be referred to as a terminal device.
- the communication unit 1010 is configured to perform the transceiving related operations on the terminal device side in the above method embodiments
- the processing unit 1020 is configured to perform processing related operations on the terminal device side in the above method embodiments.
- the communication unit 1010 is configured to: receive configuration information of a cell, where the configuration information of the cell includes M beam failure detection resource groups and M candidate beam resource groups, the M beam failure detection resources The group is in one-to-one correspondence with the M candidate beam resource groups, where M is an integer.
- the processing unit 1020 is configured to: determine that M is an integer greater than 1, and a beam failure occurs in at least one beam failure detection resource group in the M beam failure detection resource groups.
- the communication unit 1010 is further configured to: send the beam failure recovery information corresponding to the cell through the first medium access control element MAC CE.
- the first MAC CE includes a bitmap
- the configuration information of the cell corresponding to any bit includes N beam failure detection resource groups and N candidate beam resource groups, and N is 0 or 1, the The value is the first value by default, and the first value is used to indicate that no beam failure has occurred in the cell corresponding to any bit.
- any bit in the bitmap corresponds to M bytes
- the M bytes are in one-to-one correspondence with the M beam failure detection resource groups; or,
- the M bytes are in one-to-one correspondence with the M candidate beam resource groups; or,
- the M bytes are in one-to-one correspondence with the M transmission and reception nodes TRP.
- each of the M bytes includes a first field, where the first field is used to indicate whether a beam failure is detected in the beam failure detection resource group corresponding to each byte.
- the remaining fields in each byte are empty.
- each of the M bytes further includes a second field
- the second field is used to indicate whether the candidate beam resource group corresponding to each byte has candidate beam resources that meet the quality requirement.
- each of the M bytes further includes a third field
- the third field is used to indicate the information of the candidate beam resource that meets the quality requirement determined in the candidate beam resource group corresponding to each byte.
- any bit in the bitmap corresponds to one or more bytes.
- the fourth field is used to indicate whether the next byte of the first byte carries the beam failure of the cell Recovery information, or the fourth field is used to indicate the number of bytes corresponding to any one bit.
- the first byte of the one or more bytes further includes a fifth field
- the fifth field is used to indicate the information of the TRP in which beam failure occurs.
- each of the one or more bytes further includes a sixth field, where the sixth field is used to indicate the beam failure detection resource group corresponding to each byte, or the The candidate beam resource group corresponding to the section.
- each of the one or more bytes further includes a seventh field
- the seventh field is used to indicate whether there is an alternative beam that meets the quality requirement or an alternative beam resource that meets the quality requirement in the alternative beam resource group corresponding to each byte.
- each of the one or more bytes further includes an eighth field
- the eighth field is used to indicate the information of the candidate beams that meet the quality requirement determined in the candidate beam resource group corresponding to each byte or the information of the candidate beam resources that meet the quality requirement.
- each of the one or more bytes further includes an eighth field, and the value of the eighth field includes multiple field values
- One of the plurality of field values is used to indicate that there is no candidate beam resource that meets the quality requirement in the candidate beam resource group corresponding to each byte, and the one field value is excluded from the plurality of field values
- Each field value of is used to indicate the information of a candidate beam resource that meets the quality requirement.
- the first MAC CE further includes a tenth field
- the tenth field is used to indicate the type of beam failure.
- the type of beam failure includes: a beam failure occurs in the first beam failure detection resource group in the M beam failure detection resource group, the M beam failure detection resource group A beam failure occurs in the second beam failure detection resource group in the M beam failure detection resource groups, and beam failure occurs in both beam failure detection resource groups in the M beam failure detection resource groups.
- the tenth field includes 2 bits
- Each of the 2 bits corresponds to one beam failure detection resource group in the M beam failure detection resource groups, and each bit is used to indicate whether a beam failure occurs in the corresponding one beam failure detection resource group.
- any one bit corresponds to two bytes
- any one bit corresponds to one byte.
- the processing unit 1020 is further configured to: determine that M is equal to 1, and a beam failure occurs in the M beam failure detection resource groups.
- the communication unit 1010 is further configured to: send the beam failure recovery information corresponding to the cell through the second MAC CE.
- the second MAC CE includes a bitmap
- N is an integer greater than 1
- the any bit The value of is the second value by default, and the second value is used to indicate that no beam failure has occurred in the cell corresponding to any bit.
- the first logical channel identifier LCID corresponding to the first MAC CE is different from the second LCID corresponding to the second MAC CE.
- the second LCID is 50 or 51
- the first LCID is any one of the following logical channel identifiers: 35, 36, 37, 38, 39, 40, 41, 42, 43, 44 or 47.
- FIG. 18 is a schematic block diagram of a communication apparatus 1100 provided by an embodiment of the present application.
- the communication apparatus 1100 may include a communication unit 1110 and a processing unit 1120 .
- the communication unit 1110 can communicate with the outside, and the processing unit 1120 is used for data processing.
- the communication unit 1110 may also be referred to as a communication interface or a transceiving unit, and the transceiving unit may include a sending unit and a receiving unit, which respectively perform the steps of sending and receiving in the method embodiment.
- the communication interface is used to input and/or output information including at least one of instructions and data.
- the communication device may be a chip or a chip system.
- the communication interface may be an input/output interface, an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit, etc. on the chip or a chip system.
- the processor may also be embodied as a processing circuit or a logic circuit. Input and output respectively correspond to receiving and sending in the method embodiment.
- the communication apparatus 1100 may implement steps or processes corresponding to those performed by the network device in the above method embodiments, for example, it may be a network device, or a chip or a chip system configured in the network device or circuit. At this time, the communication apparatus 1100 may be referred to as a network device.
- the communication unit 1110 is configured to perform the transceiving related operations on the network device side in the above method embodiments, and the processing unit 1120 is configured to perform the network device processing related operations in the above method embodiments.
- the communication unit 1110 is used for:
- the configuration information of the cell includes M beam failure detection resource groups and M candidate beam resource groups, the M beam failure detection resource groups and the M candidate beam resource groups are in one-to-one correspondence, and M is an integer;
- the communication unit 1110 is also used for:
- the first MAC CE carries beam failure recovery information corresponding to the cell, and the first MAC CE is at least one beam failure detection of the terminal equipment in the M beam failure detection resource groups Sent when a beam failure occurs in the resource group, and M is an integer greater than 1;
- the processing unit 1120 is used to:
- Whether to switch the first beam to a second beam is determined according to the first MAC CE, where the first beam is a beam used to transmit the at least one beam failure detection resource group, and the second beam is used to transmit the M candidates Beams of at least one candidate beam resource group in the beam resource group, the at least one candidate beam resource group is in one-to-one correspondence with the at least one beam failure detection resource group.
- processing unit 1120 is further configured to:
- the first beam is switched to the second beam.
- the communication unit 1110 is also used for:
- the second MAC CE carries the beam failure recovery information corresponding to the cell
- the second MAC CE is sent by the terminal device in the case of beam failure in the M beam failure detection resource groups, and M is An integer equal to 1.
- the processing unit 1120 is also used for:
- the M beam failure detection resource groups correspond to the M candidate beam resource groups.
- processing unit 1120 is further configured to:
- the M beam failure detection resource group corresponding to the candidate beam resource group has a second candidate beam resource that meets the quality requirement, and the information of the second candidate beam resource that meets the quality requirement;
- the third beam is switched to the fourth beam.
- the first logical channel identifier LCID corresponding to the first MAC CE is different from the second LCID corresponding to the second MAC CE.
- the second LCID is 50 or 51
- the first LCID is any one of the following logical channel identifiers: 35, 36, 37, 38, 39, 40, 41, 42, 43, 44 or 47.
- FIG. 19 is another schematic block diagram of a communication apparatus 1200 provided by an embodiment of the present application.
- the communication device 1200 includes a processor 1210 , a memory 1220 and a transceiver 1230 .
- the memory 1220 stores a program
- the processor 1210 is configured to execute the program stored in the memory 1220 and execute the program stored in the memory 1220 , so that the processor 1210 is configured to execute the relevant processing steps in the above method embodiments, and the program stored in the memory 1220 is executed, so that the processor 1210 controls the transceiver 1230 to perform the above method embodiments.
- the communication apparatus 1200 is configured to perform the actions performed by the terminal device in the above method embodiments.
- the program stored in the memory 1220 is executed, so that the processor 1210 is configured to perform the above method embodiments.
- the execution of the program stored in the memory 1220 causes the processor 1210 to control the transceiver 1230 to perform the receiving and sending steps on the terminal device side in the above method embodiments.
- the communication apparatus 1200 is configured to perform the actions performed by the network device in the above method embodiments.
- the program stored in the memory 1220 is executed, so that the processor 1210 is configured to perform the above method implementation.
- the execution of the program stored in the memory 1220 causes the processor 1210 to control the transceiver 1230 to perform the receiving and sending steps on the network device side in the above method embodiments.
- the disclosed system, apparatus and method may be implemented in other manners.
- the apparatus embodiments described above are only illustrative.
- the division of the units is only a logical function division. In actual implementation, there may be other division methods.
- multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
- the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
- the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
- the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
- the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
- the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .
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Abstract
Description
Claims (67)
- 一种波束失败恢复方法,其特征在于,所述方法包括:终端设备接收小区的配置信息,所述小区的配置信息包括M个波束失败检测资源组和M个备选波束资源组,所述M个波束失败检测资源组和所述M个备选波束资源组一一对应,M为整数;当M为大于1的整数,且所述M个波束失败检测资源组中的至少一个波束失败检测资源组发生波束失败时,所述终端设备通过第一媒体接入控制元素MAC CE发送所述小区对应的波束失败恢复信息。
- 根据权利要求1所述的方法,其特征在于,所述第一MAC CE包括一个比特位图,所述比特位图中的一个比特对应一个小区,所述一个比特用于指示一个小区是否发生波束失败。
- 根据权利要求2所述的方法,其特征在于,所述一个比特对应一个或多个字节。
- 根据权利要求3所述的方法,其特征在于,所述第一MAC CE包括一个第一字段,所述第一字段用于指示所述一个比特对应一个或多个字节。
- 根据权利要求4所述的方法,其特征在于,所述一个或多个字节中的第一个字节中包括第二字段,所述第二字段用于指示发生波束失败的波束失败检测资源组的信息。
- 根据权利要求5所述的方法,其特征在于,所述第一字段指示所述一个比特对应一个字节时,所述第二字段用于指示发生波束失败的波束失败检测资源组的信息。
- 根据权利要求5所述的方法,其特征在于,所述第一字段指示所述一个比特对应多个字节时,所述第二字段缺省。
- 根据权利要求3-7任一项所述的方法,其特征在于,所述一个或多个字节中的每个字节中还包括一个第三字段,所述第三字段用于指示所述每个字节对应的波束失败检测资源组,或所述每个字节对应的备选波束资源组。
- 根据权利要求3-8任一项所述的方法,其特征在于,所述一个或多个字节中的每个字节还包括一个第四字段,所述第四字段用于指示所述每个字节对应的备选波束资源组中是否存在满足质量要求的备选波束或满足质量要求的备选波束资源。
- 根据权利要求3-9任一项所述的方法,其特征在于,所述一个或多个字节中的每个字节中还包括一个第五字段,所述第五字段用于指示所述每个字节对应的备选波束资源组中确定的满足质量要求的备选波束的信息或满足质量要求的备选波束资源的信息。
- 根据权利要求1-10任一项所述的方法,其特征在于,所述第一MAC CE对应的逻辑信道标识为以下逻辑信道标识中的任意一种:35,36,37,38,39,40,41,42,43,44或47。
- 根据权利要求1所述的方法,其特征在于,所述第一MAC CE包括一个比特位图,对于所述比特位图中的任一比特,如果所述任一比特对应的小区的配置信息包括N个 波束失败检测资源组和N个备选波束资源组,N为0或1,所述任一比特的取值默认为第一值,所述第一值用于指示所述任一比特对应的小区未发生波束失败。
- 根据权利要求12所述的方法,其特征在于,所述比特位图中的任一比特对应M个字节,所述M个字节与所述M个波束失败检测资源组一一对应;或者,所述M个字节与所述M个备选波束资源组一一对应;或者,所述M个字节与M个传输接收节点TRP一一对应。
- 根据权利要求13所述的方法,其特征在于,所述M个字节中的每个字节中包括一个第一字段,所述第一字段用于指示所述每个字节对应的波束失败检测资源组中是否检测到波束失败。
- 根据权利要求14所述的方法,其特征在于,如果所述第一字段指示所述每个字节对应的波束失败检测资源组中未检测到波束失败,所述每个字节中的剩余字段为空。
- 根据权利要求13-15任一项所述的方法,其特征在于,所述M个字节中的每个字节中还包括一个第二字段,所述第二字段用于指示所述每个字节对应的备选波束资源组是否存在满足质量要求的备选波束资源。
- 根据权利要求13-16任一项所述的方法,其特征在于,所述M个字节中的每个字节中还包括一个第三字段,所述第三字段用于指示所述每个字节对应的备选波束资源组中确定的满足质量要求的备选波束资源的信息。
- 根据权利要求12所述的方法,其特征在于,所述比特位图中的任一比特对应一个或多个字节。
- 根据权利要求18所述的方法,其特征在于,所述一个或多个字节中的第一个字节中存在一个第四字段,所述第四字段用于指示所述第一个字节的下一字节是否携带所述小区的波束失败恢复信息,或者所述第四字段用于指示所述任一比特对应的字节数量。
- 根据权利要求18或19所述的方法,其特征在于,所述一个或多个字节中的第一个字节中还包括第五字段,所述第五字段用于指示发生波束失败的TRP的信息。
- 根据权利要求20所述的方法,其特征在于,所述一个或多个字节中的每个字节中还包括一个第六字段,所述第六字段用于指示所述每个字节对应的波束失败检测资源组,或所述每个字节对应的备选波束资源组。
- 根据权利要求18-21任一项所述的方法,其特征在于,所述一个或多个字节中的每个字节还包括一个第七字段,所述第七字段用于指示所述每个字节对应的备选波束资源组中是否存在满足质量要求的备选波束或满足质量要求的备选波束资源。
- 根据权利要求18-22任一项所述的方法,其特征在于,所述一个或多个字节中的每个字节中还包括一个第八字段,所述第八字段用于指示所述每个字节对应的备选波束资源组中确定的满足质量要求 的备选波束的信息或满足质量要求的备选波束资源的信息。
- 根据权利要求18-22任一项所述的方法,其特征在于,所述一个或多个字节中的每个字节中还包括一个第八字段,所述第八字段的取值包括多个字段值,所述多个字段值中的一个字段值用于表示所述每个字节对应的备选波束资源组中不存在满足质量要求的备选波束资源,所述多个字段值中除去所述一个字段值之外的每个字段值用于表示一个满足质量要求的备选波束资源的信息。
- 根据权利要求12或18所述的方法,其特征在于,所述第一MAC CE还包括一个第十字段,所述第十字段用于指示波束失败的类型,当M等于2时,所述波束失败的类型包括:所述M个波束失败检测资源组中的第一个波束失败检测资源组中发生波束失败,所述M个波束失败检测资源组中的第二个波束失败检测资源组中发生波束失败,所述M个波束失败检测资源组中的两个波束失败检测资源组都发生波束失败。
- 根据权利要求25所述的方法,其特征在于,所述第十字段包括2比特,所述2比特中的每个比特对应所述M个波束失败检测资源组中的一个波束失败检测资源组,所述每个比特用于表示对应的一个波束失败检测资源组中是否发生波束失败。
- 根据权利要求25或26所述的方法,其特征在于,当所述第十字段指示所述M个波束失败检测资源组中的所述两个波束失败检测资源组都发生波束失败时,所述任一比特对应两个字节;当所述第十字段指示所述M个波束失败检测资源组中的一个波束失败检测资源组发生波束失败时,所述任一比特对应一个字节。
- 根据权利要求1所述的方法,其特征在于,所述方法还包括:当M等于1,且所述M个波束失败检测资源组发生波束失败时,所述终端设备通过第二MAC CE发送所述小区对应的波束失败恢复信息。
- 根据权利要求28所述的方法,其特征在于,所述第二MAC CE包括一个比特位图,对于所述比特位图中的任一比特,如果所述任一比特对应的小区的配置信息包括N个波束失败检测资源组和N个备选波束资源组,N为大于1的整数,所述任一比特的取值默认为第二值,所述第二值用于指示所述任一比特对应的小区未发生波束失败。
- 根据权利要求29所述的方法,其特征在于,所述第一MAC CE对应的第一逻辑信道标识LCID与所述第二MAC CE对应的第二LCID不相同。
- 根据权利要求30所述的方法,其特征在于,所述第二LCID为50或51,所述第一LCID为以下逻辑信道标识中的任意一种标识:35,36,37,38,39,40,41,42,43,44或47。
- 一种终端设备,其特征在于,包括:接收单元,用于接收小区的配置信息,所述小区的配置信息包括M个波束失败检测资源组和M个备选波束资源组,所述M个波束失败检测资源组和所述M个备选波束资源组一一对应,M为整数;发送单元,用于当M为大于1的整数,且所述M个波束失败检测资源组中的至少一个波束失败检测资源组发生波束失败时,通过第一媒体接入控制元素MAC CE发送所述小区对应的波束失败恢复信息。
- 根据权利要求32所述的终端设备,其特征在于,所述第一MAC CE包括一个比特位图,所述比特位图中的一个比特对应一个小区,所述一个比特用于指示一个小区是否发生波束失败。
- 根据权利要求33所述的终端设备,其特征在于,所述一个比特对应一个或多个字节。
- 根据权利要求33所述的终端设备,其特征在于,所述第一MAC CE包括一个第一字段,所述第一字段用于指示所述一个比特对应一个或多个字节。
- 根据权利要求35所述的终端设备,其特征在于,所述一个或多个字节中的第一个字节中包括第二字段,所述第二字段用于指示发生波束失败的波束失败检测资源组的信息。
- 根据权利要求36所述的终端设备,其特征在于,所述第一字段指示所述一个比特对应一个字节时,所述第二字段用于指示发生波束失败的波束失败检测资源组的信息。
- 根据权利要求36所述的终端设备,其特征在于,所述第一字段指示所述一个比特对应多个字节时,所述第二字段缺省。
- 根据权利要求34-38任一项所述的终端设备,其特征在于,所述一个或多个字节中的每个字节中还包括一个第三字段,所述第三字段用于指示所述每个字节对应的波束失败检测资源组,或所述每个字节对应的备选波束资源组。
- 根据权利要求34-39任一项所述的终端设备,其特征在于,所述一个或多个字节中的每个字节还包括一个第四字段,所述第四字段用于指示所述每个字节对应的备选波束资源组中是否存在满足质量要求的备选波束或满足质量要求的备选波束资源。
- 根据权利要求34-40任一项所述的终端设备,其特征在于,所述一个或多个字节中的每个字节中还包括一个第五字段,所述第五字段用于指示所述每个字节对应的备选波束资源组中确定的满足质量要求的备选波束的信息或满足质量要求的备选波束资源的信息。
- 根据权利要求32-41任一项所述的终端设备,其特征在于,所述第一MAC CE对应的逻辑信道标识为以下逻辑信道标识中的任意一种:35,36,37,38,39,40,41,42,43,44或47。
- 根据权利要求32所述的终端设备,其特征在于,所述第一MAC CE包括一个比特位图,对于所述比特位图中的任一比特,如果所述任一比特对应的小区的配置信息包括N个波束失败检测资源组和N个备选波束资源组,N为0或1,所述任一比特的取值默认为第一值,所述第一值用于指示所述任一比特对应的小区未发生波束失败。
- 根据权利要求43所述的终端设备,其特征在于,所述比特位图中的任一比特对应M个字节,所述M个字节与所述M个波束失败检测资源组一一对应;或者,所述M个字节与所述M个备选波束资源组一一对应;或者,所述M个字节与M个传输接收节点TRP一一对应。
- 根据权利要求44所述的终端设备,其特征在于,所述M个字节中的每个字节中包括一个第一字段,所述第一字段用于指示所述每个字节对应的波束失败检测资源组中是否检测到波束失败。
- 根据权利要求45所述的终端设备,其特征在于,如果所述第一字段指示所述每个字节对应的波束失败检测资源组中未检测到波束失败,所述每个字节中的剩余字段为空。
- 根据权利要求44-46任一项所述的终端设备,其特征在于,所述M个字节中的每个字节中还包括一个第二字段,所述第二字段用于指示所述每个字节对应的备选波束资源组是否存在满足质量要求的备选波束资源。
- 根据权利要求44-47任一项所述的终端设备,其特征在于,所述M个字节中的每个字节中还包括一个第三字段,所述第三字段用于指示所述每个字节对应的备选波束资源组中确定的满足质量要求的备选波束资源的信息。
- 根据权利要求43所述的终端设备,其特征在于,所述比特位图中的任一比特对应一个或多个字节。
- 根据权利要求49所述的终端设备,其特征在于,所述一个或多个字节中的第一个字节中存在一个第四字段,所述第四字段用于指示所述第一个字节的下一字节是否携带所述小区的波束失败恢复信息,或者所述第四字段用于指示所述任一比特对应的字节数量。
- 根据权利要求49或50所述的终端设备,其特征在于,所述一个或多个字节中的第一个字节中还包括第五字段,所述第五字段用于指示发生波束失败的TRP的信息。
- 根据权利要求51所述的终端设备,其特征在于,所述一个或多个字节中的每个字节中还包括一个第六字段,所述第六字段用于指示所述每个字节对应的波束失败检测资源组,或所述每个字节对应的备选波束资源组。
- 根据权利要求49-52任一项所述的终端设备,其特征在于,所述一个或多个字节中的每个字节还包括一个第七字段,所述第七字段用于指示所述每个字节对应的备选波束资源组中是否存在满足质量要求的备选波束或满足质量要求的备选波束资源。
- 根据权利要求49-53任一项所述的终端设备,其特征在于,所述一个或多个字节中的每个字节中还包括一个第八字段,所述第八字段用于指示所述每个字节对应的备选波束资源组中确定的满足质量要求的备选波束的信息或满足质量要求的备选波束资源的信息。
- 根据权利要求49-53任一项所述的终端设备,其特征在于,所述一个或多个字节中的每个字节中还包括一个第八字段,所述第八字段的取值包括多个字段值,所述多个字段值中的一个字段值用于表示所述每个字节对应的备选波束资源组中不存在满足质量要求的备选波束资源,所述多个字段值中除去所述一个字段值之外的每个字 段值用于表示一个满足质量要求的备选波束资源的信息。
- 根据权利要求43或49所述的终端设备,其特征在于,所述第一MAC CE还包括一个第十字段,所述第十字段用于指示波束失败的类型,当M等于2时,所述波束失败的类型包括:所述M个波束失败检测资源组中的第一个波束失败检测资源组中发生波束失败,所述M个波束失败检测资源组中的第二个波束失败检测资源组中发生波束失败,所述M个波束失败检测资源组中的两个波束失败检测资源组都发生波束失败。
- 根据权利要求56所述的终端设备,其特征在于,所述第十字段包括2比特,所述2比特中的每个比特对应所述M个波束失败检测资源组中的一个波束失败检测资源组,所述每个比特用于表示对应的一个波束失败检测资源组中是否发生波束失败。
- 根据权利要求56或57所述的终端设备,其特征在于,当所述第十字段指示所述M个波束失败检测资源组中的所述两个波束失败检测资源组都发生波束失败时,所述任一比特对应两个字节;当所述第十字段指示所述M个波束失败检测资源组中的一个波束失败检测资源组发生波束失败时,所述任一比特对应一个字节。
- 根据权利要求32所述的终端设备,其特征在于,所述发送单元还用于:当M等于1,且所述M个波束失败检测资源组发生波束失败时,通过第二MAC CE发送所述小区对应的波束失败恢复信息。
- 根据权利要求59所述的终端设备,其特征在于,所述第二MAC CE包括一个比特位图,对于所述比特位图中的任一比特,如果所述任一比特对应的小区的配置信息包括N个波束失败检测资源组和N个备选波束资源组,N为大于1的整数,所述任一比特的取值默认为第二值,所述第二值用于指示所述任一比特对应的小区未发生波束失败。
- 根据权利要求60所述的终端设备,其特征在于,所述第一MAC CE对应的第一逻辑信道标识LCID与所述第二MAC CE对应的第二LCID不相同。
- 根据权利要求61所述的终端设备,其特征在于,所述第二LCID为50或51,所述第一LCID为以下逻辑信道标识中的任意一种标识:35,36,37,38,39,40,41,42,43,44或47。
- 一种通信装置,其特征在于,包括至少一个处理器和通信接口,所述至少一个处理器,用于执行计算机程序或指令,以使得所述通信装置执行如权利要求1至31任一项所述的方法。
- 根据权利要求63所述的通信装置,其特征在于,所述装置还包括至少一个存储器,所述至少一个存储器与所述至少一个处理器耦合,所述计算机程序或指令存储在所述至少一个存储器中。
- 一种通信系统,其特征在于,包括:网络设备和终端设备,所述网络设备,用于发送小区的配置信息,所述小区的配置信息包括:包括M个波束失败检测资源组和M个备选波束资源组,所述M个波束失败检测资源组和所述M个备 选波束资源组一一对应,M为整数;所述终端设备,用于接收所述小区的配置信息;所述终端设备还用于:当M为大于1的整数,且所述M个波束失败检测资源组中的至少一个波束失败检测资源组发生波束失败时,通过第一媒体接入控制元素MAC CE发送所述小区对应的波束失败恢复信息。
- 一种计算机可读存储介质,其特征在于,用于存储计算机指令,当所述计算机指令被执行时,如权利要求1至31中任一项所述的方法被实现。
- 一种芯片,其特征在于,包括:处理器和接口,用于从存储器中调用并运行所述存储器中存储的计算机程序,执行如权利要求1至31中任一项所述的方法。
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See also references of EP4304239A4 |
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MX2023011512A (es) | 2023-10-04 |
EP4304239A4 (en) | 2024-08-21 |
US20240064538A1 (en) | 2024-02-22 |
BR112023020016A2 (pt) | 2023-11-14 |
AU2022251417A1 (en) | 2023-10-05 |
KR20230156783A (ko) | 2023-11-14 |
EP4304239A1 (en) | 2024-01-10 |
JP2024511531A (ja) | 2024-03-13 |
CA3213793A1 (en) | 2022-10-06 |
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