Method for processing time-frequency resources of pdcch candidates, apparatus, device, system, and medium

Abstract

Embodiments of the present disclosure provide a method for processing time-frequency resources of PDCCH candidates, an apparatus, a communication device, a communication system, and a storage medium. The method for processing time-frequency resources of PDCCH candidates comprises: a first base station receives first information sent by a terminal, wherein the first information is related to a first task, and the first task is used for the terminal to send a first signal to a first device; and the terminal receives the first information from the first device, wherein the first information is returned to the terminal by the first device on the basis of the first signal.

Description

Method, device, system and medium for processing time-frequency resources of PDCCH candidates Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a method and apparatus for processing time-frequency resources of Physical Downlink Control Channel (PDCCH) candidates, a communication device, a communication system, and a storage medium. Background Art

[0002] In order to improve coverage and network throughput, the subband full-duplex technology was proposed in the duplex enhancement project.

[0003] For example, a carrier component (CC) may include certain time-domain units of one or more subbands (SBs), in which some subbands are configured as uplink (UL) subbands and some subbands are configured as downlink (DL) subbands. This creates a subband full-duplex (SBFD) time-domain unit in the time domain.

[0004] Summary of the Invention

[0005] Embodiments of the present disclosure provide a method and apparatus for processing time-frequency resources of PDCCH candidates, a communication device, and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, a method for processing time-frequency resources of a PDCCH candidate is provided, including:

[0007] The terminal receives first information, where the first information is used to indicate time-frequency resources of a search space SS set;

[0008] The time domain unit where one or more first SSs in the SS set are located is an SBFD time domain unit, and the time-frequency resource position of the physical downlink control channel PDCCH candidate included in the first SS is determined according to the first information.

[0009] According to a second aspect of an embodiment of the present disclosure, a method for processing time-frequency resources of a PDCCH candidate is provided, comprising:

[0010] The access network device sends first information, wherein the first information is at least used to indicate the time-frequency resources of the physical downlink control channel PDCCH candidates included in the search space SS set;

[0011] The time domain units of one or more first SSs in the SS set are all SBFD time domain units.

[0012] According to a third aspect of an embodiment of the present disclosure, a method for processing time-frequency resources of a PDCCH candidate is provided, the method comprising:

[0013] The terminal executes the time-frequency resource processing method of the PDCCH candidate provided by any technical solution of the first aspect;

[0014] The access network device executes the time-frequency resource processing method of the PDCCH candidate provided by any technical solution of the second aspect.

[0015] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0016] The receiving module is configured to receive first information, wherein the first information is used to indicate the time-frequency resources of the search space SS set; the time domain units of one or more first SSs in the SS set are all SBFD time domain units;

[0017] The processing module is configured to determine the time-frequency resources of the physical downlink control channel PDCCH candidates included in the first SS according to the first information.

[0018] According to a fifth aspect of an embodiment of the present disclosure, an access network device is provided, comprising:

[0019] The sending module is configured to send first information, wherein the first information is at least used to indicate the time-frequency resources of the physical downlink control channel PDCCH candidates contained in the search space SS set; the time domain units where one or more first SSs in the SS set are located are all sub-band full-duplex SBFD time domain units.

[0020] According to a sixth aspect of an embodiment of the present disclosure, a communication device is provided, wherein the communication device includes:

[0021] one or more processors;

[0022] The processor is used to call instructions to enable the communication device to execute the time-frequency resource processing method of the PDCCH candidate provided by the first aspect and / or the second aspect.

[0023] According to the seventh aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the time-frequency resource processing method of the PDCCH candidate provided by the first aspect and / or the second aspect.

[0024] The technical solution provided by the embodiments of the present disclosure can enable more time-frequency resources of PDCCH candidates to be used for PDCCH transmission in this manner.

[0025] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the embodiments of the present disclosure.

[0027] FIG1A is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0028] FIG1B is a schematic diagram showing an SBFD symbol according to an exemplary embodiment;

[0029] FIG1C is a schematic diagram showing an SBFD symbol according to an exemplary embodiment;

[0030] FIG1D is a schematic diagram showing a resource configuration according to an exemplary embodiment;

[0031] FIG1E is a schematic diagram showing a resource configuration according to an exemplary embodiment;

[0032] FIG1F is a schematic diagram showing a resource configuration according to an exemplary embodiment;

[0033] FIG1G is a schematic diagram showing a resource configuration according to an exemplary embodiment;

[0034] FIG1H is a schematic diagram showing a resource configuration according to an exemplary embodiment;

[0035] FIG1I is a schematic diagram showing a resource configuration according to an exemplary embodiment;

[0036] FIG1J is a schematic diagram showing a resource configuration according to an exemplary embodiment;

[0037] FIG1K is a schematic flow chart showing a method for processing time-frequency resources of a PDCCH candidate according to an exemplary embodiment;

[0038] FIG2 is a schematic flow chart of a method for processing time-frequency resources of a PDCCH candidate according to an exemplary embodiment;

[0039] FIG3 is a schematic flow chart of a method for processing time-frequency resources of a PDCCH candidate according to an exemplary embodiment;

[0040] FIG4 is a schematic flow chart showing a method for processing time-frequency resources of a PDCCH candidate according to an exemplary embodiment;

[0041] FIG5 is a schematic structural diagram of a terminal according to an exemplary embodiment;

[0042] FIG6 is a schematic structural diagram of an access network device according to an exemplary embodiment;

[0043] FIG7 is a schematic structural diagram of a communication device according to an exemplary embodiment;

[0044] Fig. 8 is a schematic structural diagram showing a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0045] Embodiments of the present disclosure provide a method and apparatus for processing time-frequency resources of PDCCH candidates, a communication device, a communication system, and a storage medium.

[0046] With the development of technology, methods related to search space (SS) are proposed to improve the probability that time-frequency resources of PDCCH candidates corresponding to the SS can be used.

[0047] In a first aspect, an embodiment of the present disclosure provides a method for processing time-frequency resources of a PDCCH candidate, wherein the method includes:

[0048] The terminal receives first information, where the first information is used to indicate time-frequency resources of a search space SS set;

[0049] The time domain units of one or more first SSs in the SS set are all SBFD time domain units, and the time-frequency resources of the PDCCH candidates included in the first SSs are determined according to the first information.

[0050] Based on the above scheme, when the time domain unit of one or more SSs in the SS set is an SBFD time domain unit, the time-frequency resources of the PDCCH candidate included in the first SS will be determined using a corresponding method based on the first information and the UL frequency range and DL frequency range corresponding to the SBFD time domain unit. If the time-frequency resources of the PDCCH candidate are not occupied by other signals or channels, the time-frequency resources of the PDCCH candidate can be used for PDCCH transmission, thereby increasing the probability that the time-frequency resources of the PDCCH candidate will be used for PDCCH transmission.

[0051] In conjunction with some embodiments of the first aspect, the first information includes at least one of the following:

[0052] Configuration information of the control resource set CORESET with index m; the value of m is a positive integer;

[0053] Configuration information of the SS set associated with the CORESET;

[0054] A frequency domain range available for DL ​​transmission on the carrier component CC in the SBFD time domain unit;

[0055] The configuration information of the CORESET indicates that the first SS occupies Z1 time domain units in the time domain;

[0056] The configuration information of the SS set indicates that the number of PDCCH candidates with aggregation level A1 included in the first SS is X1, and the indexes of the X1 PDCCH candidates are 0 to X1-1;

[0057] The time-frequency resources of the PDCCH candidate with aggregation level A1 include A1 control channel elements CCE;

[0058] A1 is a positive integer;

[0059] X1 is a positive integer;

[0060] The Z1 is a value among 1, 2 and 3.

[0061] In conjunction with some embodiments of the first aspect, the method further includes:

[0062] Determine, according to the first information, an index k of the time slot where the first SS is located;

[0063] Determine, according to the index k of the timeslot where the first SS is located and the identifier of the terminal, the index of the control channel element CCE included in the PDCCH candidate located in the timeslot with index k;

[0064] Determine, according to the first information, a time-frequency resource of any CCE included in the first SS;

[0065] The time-frequency resources of the X1 PDCCH candidates are determined according to the indexes of the CCEs included in the PDCCH.

[0066] Based on the above scheme, a specific method is given for first determining the CCE index based on the first information, the time slot where the first SS is located, and the terminal identifier; determining the CCE time-frequency resources based on the CCE index; and finally determining the PDCCH candidate based on the CCE time-frequency resources. A specific method for determining the subsequent implementation of PDCCH is given.

[0067] With reference to some embodiments of the first aspect, the time domain units where the one or more second SSs in the SS set are located are all non-SBFD time domain units, and the number of PDCCH candidates of aggregation level A2 included in the second SS is X2;

[0068] The configuration information of the CORESET indicates that the second SS in the SS set occupies Z2 time domain units in the time domain;

[0069] A2 is a positive integer;

[0070] X2 is a positive integer;

[0071] Z2 is a value among 1, 2 and 3;

[0072] A2 is the same as or different from A1; and / or,

[0073] X2 is the same as or different from X1; and / or,

[0074] The Z2 is the same as or different from Z1.

[0075] Based on the above solution, the SS set may include a first SS and a second SS. The time domain unit of the first SS may be located in an SBFD time domain unit, while the time domain unit of the second SS may be located in a non-SBFD time domain unit. A non-SBFD time domain unit may be a time domain unit that is not mapped to both UL and DL frequency domain resources. In this case, the CORESET configuration information included in the first information may include at least one of the above contents.

[0076] In combination with some embodiments of the first aspect, the SBFD time domain unit is a time domain unit that includes a downlink connection DL subband and an uplink connection UL subband in the frequency domain; the non-SBFD time domain unit is a time domain unit that does not include a DL subband and a UL subband in the frequency domain.

[0077] Based on the above solution, a subband is a unit of frequency domain resources. However, in actual implementation, DL subbands can be replaced by DL frequency domain resources. UL subbands can replace UL frequency domain resources. Flexible resource configuration can be performed based on specific needs.

[0078] In combination with some embodiments of the first aspect, the SBFD time domain unit includes a guard band GB in the frequency domain; wherein the GB is located between the DL sub-band and the UL sub-band.

[0079] Based on the above solution, in order to reduce adjacent band interference, a GB is set between the UL sub-band and the DL sub-band, which can improve the communication quality of the SBFD time domain unit.

[0080] In conjunction with some embodiments of the first aspect, the first manner is used to determine the time-frequency resources of the PDCCH candidates included in the first SS; or, wherein the first manner includes a non-interleaved manner;

[0081] The second mode is used to determine the time-frequency resources of the PDCCH candidates included in the second SS, wherein the second mode is one of an interleaved mode and a non-interleaved mode, and the configuration information of the CORESET further indicates the second mode.

[0082] Based on the above solution, in order to enable the SS to retain more PDCCH candidates for transmitting downlink control information (DCI) corresponding to the PDCCH in the SBFD time domain unit, a first method is used for the first SS. This first method includes a non-interleaved method. The non-interleaved method can concentrate the frequency domain resources of the first SS in the frequency domain, thereby reducing the phenomenon of the first SS having PDCCH candidates scattered in the SBFD time domain unit entering the SBFD UL subband, thereby increasing the probability that the PDCCH candidates can be used for DCI transmission.

[0083] In combination with some embodiments of the first aspect, the first information is used to ensure that the frequency domain range of the first SS is within the first frequency domain range, and to ensure that the mapping of the CCE of the first SS to the resource element group REG satisfies the first condition.

[0084] Based on the above solution, when performing CORESET, SS and / or CCE configuration, the first information is configured based on the first condition, so that more correct PDCCH candidates can be used for DCI transmission.

[0085] In combination with some embodiments of the first aspect, the device identification of the reader further includes: a second part.

[0086] In combination with some embodiments of the first aspect, the first frequency domain range is: a frequency domain range of the bandwidth part BWP to which the CORESET belongs or the common frequency domain resources CFR of the multicast broadcast service MBS used for DL ​​transmission in the SBFD time domain unit.

[0087] Based on the above solution, the first frequency domain range is located in the DL frequency domain range, which is exactly the same as the direction of PDCCH transmission. In this way, the probability that the PDCCH candidate cannot be used for DCI transmission due to the frequency domain range of UL transmission is reduced.

[0088] In combination with some embodiments of the first aspect, the first information is used to ensure that the frequency domain range of the second SS is within the second frequency domain range, and the CCE used for the second SS satisfies the second condition when mapped to the resource element group REG.

[0089] Based on the above solution, if the second SS is not located in the SBFD time domain unit, the frequency domain resource determination method can use either interleaving or non-interleaving, depending on the current network environment. For example, if the current network environment has a lot of interference, to obtain frequency domain gain, the CORESET configuration information can indicate the use of interleaving; otherwise, the non-interleaving method can be indicated.

[0090] With reference to some embodiments of the first aspect, the first information includes:

[0091] A first configuration, used for configuration of the first SS;

[0092] The second configuration is used for the configuration of the second SS.

[0093] Based on the above solution, since the first SS and the second SS are in different time domain units, two sets of configurations are used to indicate the first SS and the second SS respectively. In this way, it can be ensured that even PDCCH candidates distributed in SBFD time domain units can be used for DCI transmission more.

[0094] In combination with some embodiments of the first aspect, for determining the time-frequency resources of the PDCCH candidate using an interleaved method or a non-interleaved method, the frequency domain range of the first SS indicated by the first configuration is different from the frequency domain range of the second SS indicated by the second configuration.

[0095] Based on the above scheme, in this case, the PDCCH candidates in the first SS can also be determined using the interleaved method and the non-interleaved method. However, in this case, the frequency ranges of the first SS and the second SS are different, so as to ensure that the PDCCH candidates in the first SS are more likely to be outside the range of UL transmission, thereby ensuring that more PDCCH candidates can be used for DCI.

[0096] In combination with some embodiments of the first aspect, the frequency domain range of the first SS is indicated by a first bit map of the first configuration; wherein, one bit in the first bit map is used to indicate whether a resource block group RBG containing 6 resource blocks RB belongs to the frequency domain range of the first SS.

[0097] Based on the above solution, the first configuration includes a first bitmap. In the first bitmap, one bit corresponds to one RBG, and the value of the bit can be used to indicate whether the RBG is located in the frequency domain of the first SS.

[0098] In combination with some embodiments of the first aspect, the frequency domain range of the second SS is indicated by a second bitmap of the second configuration; wherein, one bit in the second bitmap is used to indicate whether an RBG containing 6 RBs belongs to the frequency domain range of the second SS.

[0099] Based on the above solution, the second configuration includes a first bitmap. In the first bitmap, one bit corresponds to one RBG, and the value of the bit can be used to indicate whether the RBG is located in the frequency domain of the second SS.

[0100] In combination with some embodiments of the first aspect, a frequency domain range of the first SS of the first configuration is different from a frequency domain range of the second SS of the second configuration;

[0101] Each RB of an RBG is located in the frequency domain of the first SS, and the corresponding bit in the first bitmap has the first value or the second value;

[0102] Each RB of an RBG is located in the frequency domain of the second SS, and the corresponding bit in the second bitmap has the first value or the second value;

[0103] At least one RB of an RBG is located outside the frequency domain range of the first SS, and the corresponding bit in the first bitmap has a second value;

[0104] At least one RB of an RBG is located outside the frequency domain range of the second SS, and the corresponding bit in the second bitmap has a second value;

[0105] The first RB in the RBG corresponding to the first bit of the first bitmap is the first RB in the second frequency domain range;

[0106] The first RB in the RBG corresponding to the first bit of the second bitmap is the first RB in the second frequency domain range;

[0107] The second value is different from the first value.

[0108] Based on the above solution, the first value can be "0" and the second value can be "1", or the first value can be "1" and the second value can be "0". The above provides at least two meanings of different bit values ​​for each bit in the first bitmap and the second bitmap, so the first information can be flexibly configured and interpreted as needed.

[0109] In combination with some embodiments of the first aspect, the RBs included in one RBG are continuously distributed in the frequency domain; or, the RBs included in one RBG can be discontinuously distributed in the frequency domain.

[0110] The RBs included in the RBG here are discontinuously distributed in the frequency domain, which can be understood as: the RBs included in the RBG are discretely distributed in the frequency domain.

[0111] The first and second SSs are configured respectively using the first and second configurations. In this case, multiple RBs within an RBG can be distributed continuously or discontinuously in the frequency domain, thereby achieving high flexibility in frequency domain resource configuration of the first and second SSs.

[0112] With reference to some embodiments of the first aspect, with respect to the interleaving mode, the first condition is:

[0113] is a positive integer;

[0114] is a positive integer;

[0115] For the non-interleaved mode, the first condition is:

[0116] is an integer;

[0117] in, is the number of REGs included in the time-frequency resources of the first SS;

[0118] is the number of RBs included in the frequency domain range of the first SS;

[0119] is the number of time domain units Z1 included in the first SS;

[0120] L3 is the size of the REG bundle of the first SS;

[0121] R3 is the size of the interleaver of the first SS.

[0122] Based on the above scheme, when the time-frequency domain resources of the PDCCH candidates located in the first SS are determined using the interleaving mode and the second interleaving mode, the first condition will be met, so that more PDCCH candidates are located in the DL frequency domain and can be used for DCI transmission.

[0123] With reference to some embodiments of the first aspect, with respect to the interleaving mode, the second condition is:

[0124] is a positive integer;

[0125] is a positive integer;

[0126] For the non-interleaved mode, the second condition is:

[0127] is an integer;

[0128] in, is the number of REGs included in the time-frequency resources of the second SS;

[0129] is the number of RBs included in the frequency domain range of the second SS;

[0130] is the number of time domain units Z2 included in the second SS;

[0131] L3 is the size of the REG bundle of the second SS;

[0132] R3 is the size of the interleaver of the second SS.

[0133] Based on the above scheme, when the time-frequency domain resources of the PDCCH candidates located in the second SS are determined using the interleaving mode and the second interleaving mode, the second condition will be met, so that more PDCCH candidates are located in the DL frequency domain and can be used for DCI transmission.

[0134] In combination with some embodiments of the first aspect, for the interleaving mode, the first configuration indicates the preset size of the REG bundle of the first SS, and the first SS uses the preset size of the REG bundle; and / or, for the interleaving mode, the first configuration does not indicate the preset size of the REG bundle of the first SS.

[0135] In this manner, the preset size of the interleaver is configured through the first configuration and the second configuration, so that more PDCCH candidates in the first SS are located in the DL frequency domain.

[0136] In conjunction with some embodiments of the first aspect, the second configuration includes a frequency domain range configuration of the second SS;

[0137] Each RB of an RBG is located in the frequency domain of the second SS, and the corresponding bit in the second bitmap has a first value;

[0138] At least one RB of an RBG is located outside the frequency domain range of the second SS, and the corresponding bit in the second bitmap has a second value.

[0139] The first RB in the RBG corresponding to the first bit of the second bitmap is the first RB in the second frequency domain range;

[0140] The second value is different from the first value.

[0141] Based on the above scheme, in this case, the first configuration may not configure the frequency range of the first SS, and the frequency range of the first SS may be a subset of the aforementioned first frequency range. In this case, the first information may be configured as above, so that the PDCCH of the first SS may be subsequently more located within the DL frequency range, thereby making the PDCCH subsequently available for PDCCH transmission.

[0142] In combination with some embodiments of the first aspect, when the second bitmap has a bit with a first value and satisfies a third condition, the RBG corresponding to the bit with the first value is within a third frequency domain;

[0143] When the second bitmap has a bit with the first value and does not meet the third condition, the RBG corresponding to the bit with the first value is not within the third frequency domain;

[0144] The second bitmap has a bit with a second value, and the RBG corresponding to the bit with the second value is not within the third frequency domain.

[0145] Based on the above solution, when the configuration of the first information satisfies the third condition, more PDCCH candidates are located within the DL frequency range.

[0146] In combination with some embodiments of the first aspect, the third condition is: the RBGs corresponding to the bits with the first value in the second bit map are all located in the first frequency domain range; wherein, the first frequency domain range is: the bandwidth part BWP to which the CORESET belongs or the common frequency domain resources CFR of the multicast broadcast service MBS are used for DL ​​transmission on the SBFD time domain unit.

[0147] Based on the above solution, a configuration of first information that meets the third condition is provided, so that more PDCCH candidates of the first SS can be within the DL frequency range.

[0148] In combination with some embodiments of the first aspect, when there is a bit with a first value in the second bitmap and a fourth condition is met, the RB in the RBG corresponding to the bit with the first value and belonging to the first frequency domain is within the fourth frequency domain;

[0149] When the second bitmap has a bit with the first value and the fourth condition is not met, the RBG corresponding to the bit with the first value is not within the fourth frequency domain;

[0150] There are bits with a second value in the second bitmap, and the RBG corresponding to the bits with the second value is not within the fourth frequency domain.

[0151] Based on the above solution, a configuration of first information that meets the fourth condition is provided, so that more PDCCH candidates of the second SS can be within the DL frequency range.

[0152] In conjunction with some embodiments of the first aspect, the fourth condition is:

[0153] Part or all of the RBGs corresponding to the bits with the first value in the second bitmap are located within the first frequency domain range, wherein the first frequency domain range is: the frequency domain range of the bandwidth part BWP to which the CORESET belongs or the common frequency domain resources CFR of the multicast broadcast service MBS used for DL ​​transmission on the SBFD time domain unit.

[0154] In conjunction with some embodiments of the first aspect, the fourth condition is:

[0155] Part or all of the RBGs corresponding to the bits with the first value in the second bitmap are located within the first frequency domain range, wherein the first frequency domain range is: the frequency domain range of the bandwidth part BWP to which the CORESET belongs or the common frequency domain resources CFR of the multicast broadcast service MBS used for DL ​​transmission on the SBFD time domain unit.

[0156] In combination with some embodiments of the first aspect, the number of REGs included in the first SS does not exceed

[0157] is the maximum number of REGs included in the first SS;

[0158] is the number of RBs included in the third frequency domain range or the fourth frequency domain range;

[0159] is the number of time domain units Z1 contained in the first SS.

[0160] In combination with some embodiments of the first aspect, for the interleaving mode, the number of REGs of the first SS is and It has the following characteristics:

[0161] exist The value range of is the largest positive integer;

[0162] exist The value range of is the largest positive integer;

[0163] Wherein, L4 is the size of the REG bundle of the first SS; R4 is the size of the interleaver of the first SS;

[0164] and / or,

[0165] For the non-interleaved mode, the number of REGs of the first SS is and It has the following characteristics:

[0166] exist The value range is The largest positive integer.

[0167] Based on the above solution, a specific fourth condition that needs to be satisfied by the first information so that more PDCCH candidates are located within the DL frequency range is given.

[0168] In conjunction with some embodiments of the first aspect, the The time-frequency resources of REG are: The time-frequency resources of the remaining REGs after removing the N4 REGs with the largest REG index or removing the N4 REGs with the smallest REG index;

[0169] described The time-frequency resources of REG are: The time-frequency resources of the remaining REGs after removing the N5 REGs with the largest REG index or removing the N5 REGs with the smallest REG index.

[0170] In some embodiments of the first aspect, the first information carries two sets of configurations to ensure that the PDCCH candidates of the first and second SSs are more likely to be located within the DL frequency range. The mapping rule between REGs and control channel elements (CCEs) of the first SS is different from the mapping rule between REGs and CCEs of the second SS; alternatively, the mapping rule between REGs and control channel elements (CCEs) of the first SS is the same as the mapping rule between REGs and CCEs of the second SS. Both are supported. In this case, the access network device can flexibly configure the configuration based on network conditions, etc.

[0171] With reference to some embodiments of the first aspect, the time domain units of the first SS are all SBFD time domain units, and the time domain units where the second SS is located are all non-SBFD time domain units.

[0172] In a second aspect, an embodiment of the present disclosure provides a method for processing time-frequency resources of a PDCCH candidate, comprising:

[0173] The access network device sends first information, wherein the first information is used to indicate the time-frequency resources of the search space SS set;

[0174] The time domain units where one or more first SSs in the SS set are located are all sub-band full-duplex (SBFD) time domain units. The time-frequency resources of the PDCCH candidates included in the first SSs are determined according to the first information.

[0175] In some embodiments of the second aspect, the first information includes at least one of the following:

[0176] Configuration information of the control resource set CORESET with index m; the value of m is a positive integer;

[0177] Configuration information of the SS set associated with the CORESET;

[0178] A frequency domain range available for DL ​​transmission on the carrier component CC in the SBFD time domain unit;

[0179] The configuration information of the CORESET indicates that the first SS occupies Z1 time domain units in the time domain;

[0180] The configuration information of the SS set indicates that the number of PDCCH candidates with aggregation level A1 included in the first SS is X1, and the indexes of the X1 PDCCH candidates are 0 to X1-1;

[0181] The time-frequency resources of the PDCCH candidate with aggregation level A1 include A1 control channel elements CCE;

[0182] A1 is a positive integer;

[0183] X1 is a positive integer;

[0184] The Z1 is a value among 1, 2 and 3.

[0185] In some embodiments of the second aspect, the method further includes:

[0186] Determine, according to the first information, an index k of the time slot where the first SS is located;

[0187] Determine, according to the index k of the timeslot where the first SS is located and the identifier of the terminal, the index of the control channel element CCE included in the PDCCH candidate located in the timeslot with index k;

[0188] Determine, according to the first information, a time-frequency resource of any CCE included in the first SS;

[0189] The time-frequency resources of the X1 PDCCH candidates are determined according to the indexes of the CCEs included in the PDCCH.

[0190] In some embodiments of the second aspect, the time domain units where the one or more second SSs in the SS set are located are all non-SBFD time domain units, and the number of PDCCH candidates of aggregation level A2 included in the second SS is X2;

[0191] The configuration information of the CORESET indicates that the second SS in the SS set occupies Z2 time domain units in the time domain;

[0192] A2 is a positive integer;

[0193] X2 is a positive integer;

[0194] Z2 is a value among 1, 2 and 3;

[0195] A2 is the same as or different from A1; and / or,

[0196] X2 is the same as or different from X1; and / or,

[0197] The Z2 is the same as or different from Z1.

[0198] In some embodiments in combination with the second aspect, the SBFD time domain unit is a time domain unit including a downlink connection DL subband and an uplink connection UL subband in the frequency domain;

[0199] A non-SBFD time domain unit is a time domain unit that does not include a DL subband and a UL subband in the frequency domain.

[0200] In some embodiments of the second aspect, the SBFD time domain unit includes a guard band GB in the frequency domain; wherein the GB is located between the DL subband and the UL subband.

[0201] In some embodiments of the second aspect, the first manner is used to determine the time-frequency resources of the PDCCH candidates included in the first SS; or, wherein the first manner includes a non-interleaved manner;

[0202] The second mode is used to determine the time-frequency resources of the PDCCH candidates included in the second SS, wherein the second mode is one of an interleaved mode and a non-interleaved mode, and the configuration information of the CORESET further indicates the second mode.

[0203] In some embodiments of the second aspect, the first information is used to ensure that the frequency domain range of the first SS is within the first frequency domain range, and to ensure that the mapping of the CCE of the first SS to the resource element group REG satisfies the first condition.

[0204] In some embodiments of the second aspect, the first frequency domain range is: a frequency domain range used for DL ​​transmission in an SBFD time domain unit by a bandwidth part BWP to which the CORESET belongs or a common frequency domain resource CFR of a multicast broadcast service MBS.

[0205] In some embodiments of the second aspect, the first information is used to ensure that the frequency domain range of the second SS is within the second frequency domain range, and the CCE used for the second SS satisfies the second condition when mapped to the resource element group REG.

[0206] In some embodiments of the second aspect, the second frequency domain range is a frequency domain range of a bandwidth part BWP to which the CORESET belongs or a common frequency domain resource CFR of a multicast broadcast service MBS.

[0207] In some embodiments of the second aspect, the first information includes:

[0208] A first configuration, used for configuration of the first SS;

[0209] The second configuration is used for the configuration of the second SS.

[0210] In some embodiments of the second aspect, for determining the time-frequency resources of the PDCCH candidate using an interleaved method or a non-interleaved method, the frequency domain range of the first SS indicated by the first configuration is different from the frequency domain range of the second SS indicated by the second configuration.

[0211] In some embodiments of the second aspect, the frequency domain range of the first SS is indicated by a first bitmap of the first configuration; wherein one bit in the first bitmap is used to indicate whether a resource block group RBG including 6 resource blocks RB belongs to the frequency domain range of the first SS;

[0212] In some embodiments of the second aspect, the frequency domain range of the second SS is indicated by a second bitmap of the second configuration; wherein one bit in the second bitmap is used to indicate whether an RBG containing 6 RBs belongs to the frequency domain range of the second SS.

[0213] In some embodiments in combination with the second aspect, a frequency domain range of the first SS of the first configuration is different from a frequency domain range of the second SS of the second configuration;

[0214] Each RB of an RBG is located in the frequency domain of the first SS, and the corresponding bit in the first bitmap has the first value or the second value;

[0215] Each RB of an RBG is located in the frequency domain of the second SS, and the corresponding bit in the second bitmap has the first value or the second value;

[0216] At least one RB of an RBG is located outside the frequency domain range of the first SS, and the corresponding bit in the first bitmap has a second value;

[0217] At least one RB of an RBG is located outside the frequency domain range of the second SS, and the corresponding bit in the second bitmap has a second value;

[0218] The first RB in the RBG corresponding to the first bit of the first bitmap is the first RB in the second frequency domain range;

[0219] The first RB in the RBG corresponding to the first bit of the second bitmap is the first RB in the second frequency domain range;

[0220] The second value is different from the first value.

[0221] In some embodiments of the second aspect, the RBs included in one RBG are continuously distributed in the frequency domain;

[0222] or,

[0223] The RBs included in one RBG may be discontinuously distributed in the frequency domain.

[0224] In some embodiments of the second aspect, with respect to the interleaving mode, the first condition is:

[0225] is a positive integer;

[0226] is a positive integer;

[0227] For the non-interleaved mode, the first condition is:

[0228] is an integer;

[0229] in, is the number of REGs included in the time-frequency resources of the first SS;

[0230] is the number of RBs included in the frequency domain range of the first SS;

[0231] is the number of time domain units Z1 included in the first SS;

[0232] L3 is the size of the REG bundle of the first SS;

[0233] R3 is the size of the interleaver of the first SS.

[0234] In some embodiments of the second aspect, with respect to the interleaving mode, the second condition is:

[0235] is a positive integer;

[0236] is a positive integer;

[0237] For the non-interleaved mode, the second condition is:

[0238] is an integer;

[0239] in, is the number of REGs included in the time-frequency resources of the second SS;

[0240] is the number of RBs included in the frequency domain range of the second SS;

[0241] is the number of time domain units Z2 included in the second SS;

[0242] L3 is the size of the REG bundle of the second SS;

[0243] R3 is the size of the interleaver of the second SS.

[0244] In some embodiments of the second aspect, with respect to the interleaving mode, the first configuration indicates the preset size of the REG bundle of the first SS, and the first SS uses the preset size of the REG bundle; and / or, with respect to the interleaving mode, the first configuration does not indicate the preset size of the REG bundle of the first SS, and the first SS uses the preset size of the REG bundle indicated by the second configuration.

[0245] In some embodiments of the second aspect, with respect to the interleaving mode, the first configuration indicates a preset size of the interleaver of the first SS, and the first SS uses the preset size of the interleaver; and / or, with respect to the interleaving mode, the first configuration does not indicate a preset size of the interleaver of the first SS, and the first SS uses the preset size of the interleaver indicated by the second configuration.

[0246] In some embodiments in conjunction with the second aspect, the second configuration includes a frequency domain range configuration of the second SS;

[0247] Each RB of an RBG is located in the frequency domain of the second SS, and the corresponding bit in the second bitmap has a first value;

[0248] At least one RB of an RBG is located outside the frequency domain range of the second SS, and the corresponding bit in the second bitmap has a second value.

[0249] The first RB in the RBG corresponding to the first bit of the second bitmap is the first RB in the second frequency domain range;

[0250] The second value is different from the first value.

[0251] In some embodiments of the second aspect, when the second bitmap has a bit with a first value and satisfies a third condition, the RBG corresponding to the bit with the first value is within a third frequency domain;

[0252] When the second bitmap has a bit with the first value and does not meet the third condition, the RBG corresponding to the bit with the first value is not within the third frequency domain;

[0253] The second bitmap has a bit with a second value, and the RBG corresponding to the bit with the second value is not within the third frequency domain.

[0254] In some embodiments of the second aspect, the third condition is that all RBGs corresponding to bits with the first value in the second bitmap are located within the first frequency domain.

[0255] In some embodiments of the second aspect, when the second bitmap has a bit with the first value and the fourth condition is met, the RB in the RBG corresponding to the bit with the first value that belongs to the first frequency domain is within the fourth frequency domain;

[0256] When the second bitmap has a bit with the first value and the fourth condition is not met, the RBG corresponding to the bit with the first value is not within the fourth frequency domain;

[0257] There are bits with a second value in the second bitmap, and the RBG corresponding to the bits with the second value is not within the fourth frequency domain.

[0258] In some embodiments of the second aspect, the fourth condition is:

[0259] Part or all of the RBGs corresponding to the bits with the first value in the second bitmap are located within the first frequency domain.

[0260] In some embodiments of the second aspect, the number of REGs included in the first SS does not exceed

[0261] is the maximum number of REGs included in the first SS;

[0262] is the number of RBs included in the third frequency domain range or the fourth frequency domain range;

[0263] is the number of time domain units Z1 contained in the first SS.

[0264] In some embodiments of the second aspect, with respect to the interleaving mode, the number of REGs of the first SS is and It has the following characteristics:

[0265] exist The value range of is the largest positive integer;

[0266] exist The value range of is the largest positive integer;

[0267] Wherein, L4 is the size of the REG bundle of the first SS; R4 is the size of the interleaver of the first SS;

[0268] and / or,

[0269] For the non-interleaved mode, the number of REGs of the first SS is and It has the following characteristics:

[0270] exist The value range is The largest positive integer.

[0271] In some embodiments of the second aspect, the The time-frequency resources of REG are: The time-frequency resources of the remaining REGs after removing the N4 REGs with the largest REG index or removing the N4 REGs with the smallest REG index;

[0272] described The time-frequency resources of REG are: The time-frequency resources of the remaining REGs after removing the N5 REGs with the largest REG index or removing the N5 REGs with the smallest REG index.

[0273] In some embodiments of the second aspect, a mapping rule between REGs and control channel elements (CCEs) of the first SS is different from a mapping rule between REGs and CCEs of the second SS;

[0274] or,

[0275] The mapping rule between the REGs of the first SS and the control channel elements CCEs is the same as the mapping rule between the REGs of the second SS and the CCEs.

[0276] In some embodiments of the second aspect, the time domain units of the first SS are all SBFD time domain units, and the time domain units where the second SS is located are all non-SBFD time domain units.

[0277] In a third aspect, a method for processing time-frequency resources of a PDCCH candidate is provided, comprising:

[0278] The terminal executes the time-frequency resource processing method of the PDCCH candidate provided by any technical solution of the first aspect.

[0279] The access network device executes the time-frequency resource processing method of the PDCCH candidate provided by any technical solution of the second aspect.

[0280] According to a fourth aspect, a terminal is provided, comprising:

[0281] A receiving module is configured to receive first information, wherein the first information is used to indicate the time-frequency resources of the search space SS set;

[0282] The time domain units where one or more first SSs in the SS set are located are all sub-band full-duplex (SBFD) time domain units. The time-frequency resources of the physical downlink control channel (PDCCH) candidates included in the first SSs are determined according to the first information.

[0283] According to a fifth aspect, an access network device is provided, comprising:

[0284] A sending module is configured to send first information, wherein the first information is used to indicate the time-frequency resources of the search space SS set;

[0285] The time domain units where one or more first SSs in the SS set are located are all sub-band full-duplex (SBFD) time domain units. The time-frequency resources of the physical downlink control channel (PDCCH) candidates included in the first SSs are determined according to the first information.

[0286] In a sixth aspect, an embodiment of the present disclosure provides a communication device, the communication device including:

[0287] one or more processors;

[0288] The processor is used to call instructions to enable the communication device to execute the time-frequency resource processing method of the PDCCH candidate described in any optional implementation manner of the first aspect and / or the second aspect.

[0289] In the seventh aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, which, when the instructions are executed on a communication device, enable the communication device to execute the time-frequency resource processing method of the PDCCH candidate described in any optional implementation of the technical solution of the first aspect and / or the second aspect.

[0290] In an eighth aspect, an embodiment of the present disclosure provides a program product. When the program product is executed by a communication device, the communication device executes the time-frequency resource processing method of the PDCCH candidate described in the optional implementation manner of the first aspect, the second aspect, or the third aspect.

[0291] In a ninth aspect, an embodiment of the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the time-frequency resource processing method of the PDCCH candidate described in the optional implementation manner of the first aspect, the second aspect, or the third aspect.

[0292] It is understandable that the above-mentioned terminal, first device, access network device, communication device, communication system, storage medium, program product, and computer program are all used to execute the method provided by the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0293] The present disclosure provides a method and apparatus for processing time-frequency resources of a PDCCH candidate, a communication device, a communication system, and a storage medium. In some embodiments, the terms "method for processing time-frequency resources of a PDCCH candidate" and "information processing method" and "method for processing time-frequency resources of a PDCCH candidate" are interchangeable; the terms "information indicating device" and "information processing device" and "information transmission device" are interchangeable; and the terms "communication system" and "information processing system" are interchangeable.

[0294] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0295] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0296] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0297] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when articles such as "a", "an", "the" in English are used in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0298] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0299] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0300] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "in one case A, in another case B," or "in one case A, in another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, and C.

[0301] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0302] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0303] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0304] In some embodiments, terms such as "...", "determine...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0305] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0306] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0307] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0308] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "base station (cell)", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving base station", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0309] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0310] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0311] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0312] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0313] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0314] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0315] FIG1A is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0316] As shown in FIG1A , a communication system 100 includes a terminal 101 , an access network device 102 , and a core network device 103 .

[0317] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0318] In some embodiments, the access network device 102 can be, for example, a node or device that accesses the terminal to the wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0319] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0320] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0321] In some embodiments, the core network device 103 may be a single device including the first network element 1031, or may be multiple devices or a group of devices, each including the first network element 1031. A network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0322] In some embodiments, the first network element 1031 is, for example, an access and mobility management function (AMF).

[0323] In some embodiments, the first network element 1031 is, for example, a Mobility Management Entity (MME).

[0324] In some embodiments, the first network element 1031 is used for access and mobility management, such as registration management, connection management, and mobility management, etc., but the name is not limited thereto.

[0325] In some embodiments, the first network element 1031 may be a network element independent of the core network device.

[0326] In some embodiments, the core network may further include a second network element, etc. The second network element may include: User Data Management (UDM), etc.

[0327] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0328] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1A , or a portion thereof, but are not limited thereto. The entities shown in FIG1A are illustrative only. The communication system may include all or part of the entities shown in FIG1A , or may include other entities other than those shown in FIG1A . The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0329] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems using time-frequency resource processing methods for other PDCCH candidates, and next-generation systems based on these. In addition, multiple systems can also be combined (for example, a combination of LTE or LTE-A with 5G, etc.) for application.

[0330] FIG1B is a schematic diagram of an SBFD symbol.

[0331] In addition, a guard band (GB) may exist between the DL sub-band and the UL sub-band to reduce interference between DL signals in the DL sub-band and UL signals in the UL sub-band through frequency domain isolation.

[0332] In SBFD symbols, the frequency domain range available for DL ​​transmission may be discontinuous, including the following two cases:

[0333] GB and UL subbands cannot be used for DL ​​transmission, and DL subbands can be used for DL ​​transmission

[0334] UL subbands cannot be used for DL ​​transmission, DL subbands and GBs can be used for DL ​​transmission

[0335] In an SBFD symbol, the frequency domain range that can be used for DL ​​transmission can be referred to as the DL frequency domain range, and the frequency domain range that cannot be used for DL ​​transmission can be referred to as outside the DL frequency domain range. Based on the above analysis, it can be seen that the DL frequency domain ranges of non-SBFD symbols and SBFD symbols are different. The DL frequency domain range is the DL frequency domain range on the CC. In an SBFD symbol, the DL frequency domain range on a partial bandwidth (BandWidth Part, BWP) refers to the frequency domain range where the BWP overlaps with the DL frequency domain range on the CC.

[0336] Here, the DL frequency domain range may be a frequency domain range used for DL ​​transmission.

[0337] The UL frequency domain range may be a frequency domain range used for UL transmission.

[0338] As shown in Figure 1C, the network device configures one or more search spaces (SSs) for a UE. The SS configuration includes the SS period and the time slot, symbol, and frequency range of the SS within the period. Specifically, the network device configures the time-frequency locations of one or more SSs for each UE. Based on the index of the time slot in which the SS resides and information such as the UE's identifier, the network device determines the time-frequency location of a PDCCH candidate within the SS. The UE blindly detects PDCCH #1 at the time-frequency location of PDCCH candidate #1. Upon successful detection, the UE receives PDCCH #1.

[0339] The following situations may occur: the symbol where the SS is located in period #m is a non-SBFD symbol, and the symbol where it is located in period #n is a SBFD symbol. Alternatively, in period #m, the symbol where the SS is located in time slot #m1 is a non-SBFD symbol, and the symbol where it is located in time slot #m2 is a SBFD symbol. As shown in the figure below, the SS period is 5, and the SS is located in OFDM symbols #0-1 (OFDM symbol, OS) in time slots #0, 1, 5, 6…, 5k, 5k+1, where k is an integer. If the frequency domain ranges available for DL ​​transmission differ between non-SBFD and SBFD symbols, it is necessary to determine the frequency domain range of the SS on the SBFD symbols and the time-frequency resources used for PDCCH candidate transmission.

[0340] The following is a description of CORESET and PDCCH candidates.

[0341] Resource Element Group (REG): occupies one RB in the frequency domain and one OFDM symbol (OS) in the time domain.

[0342] REG bundle: A REG bundle consists of multiple REGs. The number of REGs included is L, which is determined by the parameter reg-BundleSize configured in the RRC parameter.

[0343] Control Channel Elements (CCE): Contains 6 REGs. According to the CCE-REG mapping method, the REG bundle contained in the CCE is determined, and then the time-frequency position of the REG contained in the CCE is determined, that is, the time-frequency position of the CCE is determined.

[0344] The mapping modes of CCE to REG include interleaving mode and non-interleaving mode.

[0345] A PDCCH candidate contains one or more CCEs. In this way, the time-frequency position of the PDCCH candidate can be determined based on the time-frequency position of the CCEs.

[0346] The following provides a configuration and understanding of CORESET:

[0347] Among them, controlResourceSetId:CORESET identifier.

[0348] frequencyDomainResources: 45-bit bitmap.

[0349] In one embodiment, the bitmap may configure the frequency domain range of the CORESET.

[0350] A bit corresponding to an RBG containing 6 RBs has a bit value of "1", indicating that the corresponding RBG is within the frequency domain of the CORESET. A bit value of 0 indicates that the corresponding RBG is not within the frequency domain of the CORESET. If not all RBs in an RBG are within the BWP to which the CORESET belongs, the bit corresponding to the RBG must be configured as "0".

[0351] Duration: The number of symbols, indicating the number of symbols that CORESET lasts in the time domain

[0352] reg-BundleSize: The size of the REG bundle during interleaving mapping, L. n2 represents 2 REGs, i.e., L = 2.

[0353] interleaverSize: the size R of the interleaver when interleaving mapping;

[0354] nonInterleaved: indicates that non-interleaved mapping is used for CCE-REG mapping. In this case, reg-BundleSize uses the default value n6, that is, L=6.

[0355] As shown in FIG1D , an example of a configuration is as follows: a BWP includes 36 RBs.

[0356] frequencyDomainResources:11111100000,…,0000 (39 zeros after 111111), indicating that the frequency domain range of CORESET is RB#0 to #35 within the BWP.

[0357] duration:2, indicating that CORESET occupies 2 symbols in the time domain.

[0358] REG index numbering method: the sequence number is sorted in the order of time domain priority within the CORESET.

[0359] The following provides a configuration and understanding of SS:

[0360] searchSpaceId: SS identifier.

[0361] controlResourceSetId: The identifier of the CORESET associated with the SS.

[0362] monitoringSlotPeriodicityAndOffset: The period of SS and the number of the starting time slot within the period.

[0363] Duration: The number of consecutive time slots containing the SS within the SS period.

[0364] monitoringSymbolsWithinSlot: A 14-bit bitmap indicating the specific position of the symbols occupied by an SS within a time slot. The number of symbols of an SS is equal to the number of symbols occupied by the CORESET corresponding to controlResourceSetId (i.e., duration in the CORESET configuration).

[0365] Referring to FIG1C , an SS configuration is provided, which may be specifically as follows:

[0366] An example of an SS configuration is as follows:

[0367] monitoringSlotPeriodicityAndOffset:{sl5 0}, indicating that the period is 5 and the starting time slot of the SS within the period is 0

[0368] duration = 2, there are SS in two consecutive time slots within the cycle, namely time slot 0 and time slot 1

[0369] monitoringSymbolsWithinSlot=1000000000000000, there is 1 SS in a time slot, the starting OS of SS is OS#2, and the number of OSs occupied by an SS in a time slot is 2 (the number of OSs is determined by the duration configured in the associated CORESET), so SS occupies OS#0 and OS#1 in the time slot.

[0370] The frequency domain range of SS is the frequency domain range configured by CORESET corresponding to controlResourceSetId.

[0371] The following is an example of CCE to REG mapping:

[0372] The number of REGs contained in CORESET is: in is the number of RBs contained in CORESET in the frequency domain, Is the number of symbols contained in the CORESET in the time domain, to ensure the correct mapping of CCE-REG:

[0373] In non-interleaved mode, the following conditions must be met: is an integer.

[0374] In interleaving mode, and is an integer.

[0375] The non-interleaving method here may also be referred to as a non-interleaving mapping method, and the interleaving method may also be referred to as an interleaving mapping method.

[0376] The non-interleaved mode can be understood as a continuous mapping mode.

[0377] 1E and 1F show an example of interleaving mapping, which may be specifically as follows:

[0378] The number of symbols in CORESET is 1, and it contains 36 REGs.

[0379] REG bundle contains 2 REGs, that is, L=2, CORESET has REG bundle

[0380] Interleaver size R = 3, configured by parameter interleaverSize, corresponding to the number of interleaver rows

[0381] Corresponding number of interleaved columns

[0382] A PDCCH contains 2 CCEs

[0383] The REG bundle contained in CCE#j is: {f(6j / L),f(6j / L+1),...,f(6j / L+6 / L-1)}, where f(·) is the interleaver. The interleaving result is shown in FIG1E and is as follows:

[0384] CCE#0 contains REG bundle {#0, 6, 12}

[0385] CCE#1 contains REG bundle {#1, 7, 13}

[0386] CCE#2 contains REG bundle {#2, 8, 14}

[0387] CCE#3 contains REG bundle {#3, 9, 15}

[0388] CCE#4 contains REG bundle {#4, 10, 16}

[0389] CCE#5 contains REG bundle {#5, 11, 17}

[0390] Assume that in an SBFD symbol, REG bundles #7, 8, 9, and 10 are outside the DL frequency domain, as shown in Figure 1F. Considering that REG bundles #7, 8, 9, and 10 are located in CCEs #1, 2, 3, and 4, respectively, the frequency domain of CCEs #1, 2, 3, and 4 overlaps with the DL frequency domain and cannot be used for PDCCH reception. Since PDCCH candidate #1 includes CCE #1, PDCCH candidate #2 includes CCEs #2 and 3, and PDCCH candidate #3 includes CCE #4, PDCCH candidates #1, 2, and 3 cannot be used for PDCCH transmission.

[0391] Similarly, when the REG bundle contains 6 REGs and other configuration parameters remain unchanged, PDCCH candidate #1 can be obtained, and 3 cannot perform PDCCH transmission.

[0392] 1G and 1H show an example of non-interleaved mapping, which may be specifically as follows:

[0393] The number of symbols in CORESET is 1, and it contains 36 REGs.

[0394] The REG bundle contains 6 REGs by default, that is, L=6, and CORESET has REG bundle

[0395] A PDCCH contains 2 CCEs

[0396] If non-interleaving is used, the interleaved CCEs are as follows:

[0397] CCE#0 contains REG bundle {#0}

[0398] CCE#1 contains REG bundle {#1}

[0399] CCE#2 contains REG bundle {#2}

[0400] CCE#3 contains REG bundle {#3}

[0401] CCE#4 contains REG bundle {#4}

[0402] CCE#5 contains REG bundle {#5}

[0403] Assume that in an SBFD symbol, REG bundle #2,3 overlaps outside the DL frequency domain, as shown in Figure 1H. Considering that REG bundle #2,3 is contained within CCE #2,3, the frequency domain of CCE #2,3 overlaps outside the DL frequency domain and cannot be used for PDCCH reception. PDCCH candidate #2 includes CCE #2,3. In this case, only PDCCH candidate #2 cannot be used for PDCCH transmission.

[0404] It can be understood that interleaved mapping causes REG bundles outside the DL frequency domain to be dispersed to CCE, resulting in a reduction in the number of PDCCH candidates available for PDCCH transmission (excluding PDCCH candidates bundled with REGs outside the DL frequency domain) compared to non-interleaved mapping.

[0405] It can be seen that when the frequency domain range configured by CORESET#m overlaps with the DL transmission frequency domain range, and the symbol located in the time slot #m1 of the SS associated with CORESET#m is a SBFD symbol, a new CCE-REG mapping method needs to be determined so that a larger number of PDCCH candidates can be used in the DL frequency domain range.

[0406] FIG2 is an interactive diagram illustrating a method for processing time-frequency resources of a PDCCH candidate according to an embodiment of the present disclosure. As shown in FIG2 , an embodiment of the present disclosure relates to a method for processing time-frequency resources of a PDCCH candidate, which is used in a communication system 100. In some embodiments, the communication system 100 may include: an access network device and a terminal. The method includes:

[0407] S2101: The access network device sends first information.

[0408] The access network equipment includes but is not limited to various types of base stations, such as eNB and / or gNB.

[0409] In some embodiments, the access network device broadcasts the first information.

[0410] In some embodiments, the access network device sends the first information by multicast.

[0411] In some other embodiments, the access network device unicasts the first information.

[0412] In some embodiments, the first information is used to indicate the time-frequency resources of the SS set.

[0413] In some embodiments, the time domain unit where one or more first SSs in the SS set are located is a SBFD time domain unit.

[0414] In some embodiments, any one SS in the SS set corresponds to a time-frequency domain resource configured by the network device. Any one SS may include one or more PDCCH candidates, which may be used for transmitting DCI.

[0415] In some embodiments, the SS may include a public SS and a UE-specific SS.

[0416] In some embodiments, the SBFD time-domain unit may include, but is not limited to, a SBFD slot, a SBFD mini-slot, and / or a SBFD symbol.

[0417] In some embodiments, the SBFD symbol may be an OFDM symbol including both DL frequency domain resources and UL frequency domain resources.

[0418] In some embodiments, the access network device sends an RRC message or a MAC control element (CE) or a system information block (SIB, etc.) carrying the first information.

[0419] In some embodiments, the first information may be considered as configuration information of the SS and / or CORESET.

[0420] In some embodiments, the first information may be considered as at least configuration information of the PDCCH candidate.

[0421] In some embodiments, the first information may include at least one of the following:

[0422] Configuration information of the control resource set CORESET with index m; the value of m is a positive integer;

[0423] Configuration information of the SS set associated with the CORESET;

[0424] A frequency domain range available for DL ​​transmission on the carrier component CC in the SBFD time domain unit;

[0425] The configuration information of the CORESET indicates that the first SS occupies Z1 time domain units in the time domain;

[0426] The configuration information of the SS set indicates that the number of PDCCH candidates with aggregation level A1 included in the first SS is X1, and the indexes of the X1 PDCCH candidates are 0 to X1-1;

[0427] The time-frequency resources of the PDCCH candidate with aggregation level A1 include A1 control channel elements CCE;

[0428] A1 is a positive integer;

[0429] X1 is a positive integer;

[0430] The Z1 is a value among 1, 2 and 3.

[0431] In the embodiment of the present disclosure, the value of m can be a natural number.

[0432] In some embodiments, the value of m may range from 0 to 16 or from 0 to 12.

[0433] In some embodiments, the value range of m is a positive integer, which excludes the configuration of the first information pair CORESET#0.

[0434] A CORESET with index m can be written as CORESET#m.

[0435] In some embodiments, the terminal receives first information.

[0436] Before the access network device sends the first information, it needs to configure the first information based on the characteristic that the time-frequency resources of the PDCCH candidates are located in the DL frequency range as much as possible.

[0437] For example, when configuring the first information, the first information may be determined according to the first SS and the second SS in the configured SS set.

[0438] In some embodiments, the time domain units of the first SS include at least SBFD time domain units, and the time domain units of the second SS do not include SBFD units, that is, the time domain units of the second SS include non-SBFD time domain units.

[0439] In some embodiments, the time domain units of the first SS are all SBDF time domain units, and the time domain units of the second SS are all non-SBFD units.

[0440] In some embodiments, the DL frequency domain resources and UL frequency domain of the SBFD time-domain unit can be distributed continuously or include a guard band (GB). The GB can reduce adjacent channel interference, thereby improving communication quality. Exemplarily, the SBFD time-domain unit includes a guard band (GB) in the frequency domain; wherein the GB is located between the DL sub-band and the UL sub-band.

[0441] In some embodiments, the frequency domain resources of the SBFD time domain unit include: DL resources and UL resources. For example, the SBFD time domain unit corresponds to both a DL subband and a UL subband.

[0442] In some embodiments, non-SBFD time domain units may include UL time domain units, DL time domain units, and / or flexible (F) time domain units. UL time domain units only cover the UL frequency range. DL time domain units only cover the DL frequency range. The frequency range of the F time domain unit is not specifically limited to uplink or downlink transmission and can be flexibly used by network devices and terminals.

[0443] In some embodiments, the time domain units where the one or more second SSs in the SS set are located are all non-SBFD time domain units, and the number of PDCCH candidates of aggregation level A2 included in the second SS is X2;

[0444] The configuration information of the CORESET indicates that the second SS in the SS set occupies Z2 time domain units in the time domain;

[0445] A2 is a positive integer;

[0446] X2 is a positive integer;

[0447] Z2 is a value among 1, 2 and 3;

[0448] A2 is the same as or different from A1; and / or,

[0449] X2 is the same as or different from X1; and / or,

[0450] The Z2 is the same as or different from Z1.

[0451] S2102: The terminal determines the time-frequency resources of the PDCCH candidates included in the first SS according to the first information.

[0452] In some embodiments, S2102 may include:

[0453] Determine, according to the first information, an index k of the time slot where the first SS is located;

[0454] Determine, according to the index k of the timeslot where the first SS is located and the identifier of the terminal, the index of the control channel element CCE included in the PDCCH candidate located in the timeslot with index k;

[0455] Determine, according to the first information, a time-frequency resource of any CCE included in the first SS;

[0456] The time-frequency resources of the X1 PDCCH candidates are determined according to the indexes of the CCEs included in the PDCCH.

[0457] For example, the k can be a natural number.

[0458] A PDCCH candidate may be composed of one or more CCEs. First, the index k of the time slot where the second SS is located is determined. Then, the index of the CCE included in the PDCCH candidate of the time slot indicated by the first information is determined.

[0459] Then, the time-frequency resource and index of any CCE included in the second SS are determined according to the first information.

[0460] Then, according to the index matching, the time-frequency resources of the PDCCH candidate can be determined according to the time-frequency resources of the CCE.

[0461] In some embodiments, the access network device sends DCI on one or more time-frequency resources of configured PDCCH candidates.

[0462] S2103: The terminal determines the video resources of the PDCCH candidates included in the second SS according to the first information.

[0463] In some embodiments, S2103 may include:

[0464] Determine, according to the first information, an index of a timeslot in which the second SS is located;

[0465] Determine, according to the timeslot where the second SS is located and the identifier of the terminal, an index of a control channel element (CCE) included in the PDCCH candidate located in the timeslot where the second SS is located;

[0466] Determine, according to the first information, a time-frequency resource of any CCE included in the second SS;

[0467] Determine the time-frequency resources of the X2 PDCCH candidates according to the index of the CCE included in the PDCCH.

[0468] For example, the k can be a natural number.

[0469] In some embodiments, after determining the time-frequency resources of the PDCCH candidate according to the first information, the terminal may perform DCI monitoring and DCI blind detection on the PDCCH candidate, thereby obtaining any instruction sent by the network device through the PDCCH.

[0470] In the present embodiment, when determining the PDCCH candidate, it is determined whether there is a first SS located on the SBFD time domain unit in the SS set, and its PDCCH candidate is determined for the first SS, so that the PDCCH candidate of the first SS is located within the DL frequency range as much as possible, thereby reducing the problem of the PDCCH candidate being unavailable for DCI transmission due to the PDCCH candidate being located within the UL frequency range.

[0471] The following are several options for S2102 to S2103:

[0472] Option 1:

[0473] When determining PDCCH candidates, the mapping between REG bundling and CCE used by the first SS and the mapping between REG bundling and CCE used by the second SS may be different, thereby reducing the probability that the first SS PDCCH candidate is located in the UL frequency range.

[0474] Based on this purpose, in some embodiments, a first method is used to determine the time-frequency resources of the PDCCH candidates included in the first SS; or, the first method includes a non-interleaved method.

[0475] The non-interleaved method here is a continuous mapping method, which can make the frequency resource range of CCE distribution smaller, thereby reducing the probability that one or more CCEs contained in a PDCCH candidate are located in the UL frequency range, so that more PDCCH candidates can be used for DCI transmission.

[0476] In some other embodiments, a second method is used to determine the time-frequency resources of the PDCCH candidates included in the second SS, wherein the second method is one of an interleaving method and a non-interleaving method.

[0477] Since the time domain unit of the second SS is not SBFD, the mapping between RBG bundling involved in the second SS and CCE can be flexibly set, that is, an interleaving mode or a non-interleaving mode can be flexibly adopted.

[0478] In some embodiments, the CORESET configuration information also indicates the second mode. Thus, the access network device uses the first information to indicate which mode to use. In this embodiment, the CORESET configuration information indicates the second mode. This can actually be indicated in a separate information element within the first information, and is not limited to being indicated through the CORESET configuration information.

[0479] In other embodiments, the first information may not indicate the method used to bundle the REGs involved in the second SS to the CCE mapping, but is determined by protocol agreement or the preferred interleaving method, so that the frequency domain resources of the PDCCH candidate are interleaved in the frequency domain, thereby improving the reliability of the PDCCH candidate transmission DCI.

[0480] Option 2:

[0481] When configuring each SS in the SS set, the resource location of each PDCCH candidate is located within the DL frequency domain.

[0482] That is, in some embodiments, the first information is used to ensure that the frequency domain range of the first SS is within the first frequency domain range.

[0483] Exemplarily, the first frequency range is a DL frequency range, which may be used for DL ​​transmission.

[0484] In some embodiments, the first frequency domain range is: a frequency domain range of a bandwidth part BWP to which the CORESET belongs or a common frequency domain resource (CFR) of a multicast and broadcast service (MBS) used for DL ​​transmission on a SBFD time domain unit.

[0485] The first frequency range may be configured by an RRC message or a system message block. Exemplarily, the first frequency range may be configured by SIB1 broadcast.

[0486] In some embodiments, the first frequency range may be configured by the first information. In this case, the first information also includes the configuration of the first frequency range.

[0487] Thus, even if the first SS is located on the SBFD time domain symbol, since the frequency range of the first SS is within the frequency range used for DL ​​transmission, the PDCCH candidates of the first SS must be within the DL frequency range, so that all PDCCH candidates can be used for DCI transmission.

[0488] If the first information ensures that all PDCCH candidates of the first SS are located within the DL frequency domain, then when determining the specific time-frequency resources of the PDCCH candidates, it is not limited to use the non-interleaving method.

[0489] That is, in the case of solution 2, even the first SS located in the SBFD time domain unit can adopt an interleaving method or a non-interleaving method to implement the mapping between REG bundling and CCE.

[0490] Specifically, how to make the frequency range of the first SS fall within the DL frequency range can be used to configure the first SS and the second SS separately.

[0491] In this case, the configuration of the first SS may be referred to as a first configuration, and the configuration of the second SS may be referred to as a second configuration.

[0492] That is, the first SS and the second SS in the SS set are configured according to different situations.

[0493] In this case, if an SS set includes both the first SS and the second SS, the first information will include two sets of configurations.

[0494] The following describes in detail the conditions under which the PDCCH candidate is located in the DL frequency range for the first configuration of the first SS and the second configuration of the second SS.

[0495] The difference between the first configuration and the second configuration may be reflected in one of the following:

[0496] The frequency ranges of the first SS and the second SS are different;

[0497] Mapping rules of REG bundling to CCE of the first SS and the second SS are different. Exemplarily, the different mapping rules may include: different sizes of REG bundling and / or different mapping modes. The mapping mode may include: interleaving mode and / or non-interleaving mode.

[0498] When both the first SS and the second SS use the interleaving method to implement mapping between REG bundling and CCE, the sizes of the interleavers used are different.

[0499] Of course, the above is merely an example of the difference between the first configuration and the second configuration, and the specific implementation is not limited to the above example.

[0500] Solution 2.1:

[0501] When the frequency ranges of the first SS and the second SS are configured differently, the following solutions are available:

[0502] Solution 2.1.1

[0503] The first configuration of the first SS and the second configuration of the second SS respectively configure their respective frequency ranges. In this case,

[0504] In some embodiments, the first information is further used to ensure that a first condition is satisfied when the CCE of the first SS is mapped to the resource element group REG.

[0505] In some embodiments, the first information satisfies a first condition when the first SS is mapped to the REG, which can be considered as a first configuration that satisfies the first condition when the first SS is mapped to the REG.

[0506] For the second SS, the first information is provided, which is used to ensure that the frequency domain range of the second SS is within the second frequency domain range, and the CCE used for the second SS satisfies the second condition when mapped to the resource element group REG.

[0507] There are many ways to implement the first condition. The following are some options:

[0508] For the interleaving mode, the first condition is:

[0509] is a positive integer;

[0510] is a positive integer;

[0511] For the non-interleaved mode, the first condition is:

[0512] is an integer;

[0513] in, is the number of REGs included in the time-frequency resources of the first SS;

[0514] is the number of RBs included in the frequency domain range of the first SS;

[0515] is the number of time domain units Z1 contained in the first SS; if the time domain unit is a symbol, then Represents the number of symbols;

[0516] L3 is the size of the REG bundle of the first SS;

[0517] R3 is the size of the interleaver of the first SS.

[0518] In this way, it is equivalent to making the second SS as a whole located within the DL frequency domain, and the PDCCH candidates of the second SS must also be located within the DL frequency range.

[0519] In some embodiments, the second frequency domain range is a frequency domain range of a bandwidth part BWP to which the CORESET belongs or a CFR of an MBS.

[0520] If the second frequency range is within the frequency range of the BWP and the CFR of the MBS indicated by the CORESET, the second SS must be located within the DL frequency range.

[0521] There are many ways to implement the second condition. The following are some options:

[0522] For the interleaving mode, the second condition is:

[0523] is a positive integer;

[0524] is a positive integer;

[0525] For the non-interleaved mode, the second condition is:

[0526] is an integer;

[0527] in, is the number of REGs included in the time-frequency resources of the second SS;

[0528] is the number of RBs included in the frequency domain range of the second SS;

[0529] is the number of time domain units Z2 included in the second SS;

[0530] L3 is the size of the REG bundle of the second SS;

[0531] R3 is the size of the interleaver of the second SS.

[0532] When solution 2.1.1 is adopted, the RBs included in an RBG are continuously distributed in the frequency domain; or, the RBs included in an RBG can be discontinuously distributed in the frequency domain.

[0533] In some embodiments, within the frequency domain of a first SS, an RBG includes RBs that are discontinuously distributed in the frequency domain. The RBs within the first frequency domain are numbered according to a first numbering scheme, where the RBs are numbered consecutively from smallest to largest based on their center frequencies. Each RBG includes six consecutively numbered RBs.

[0534] Solution 2.1.3

[0535] The frequency ranges of the first SS and the second SS are still configured differently. However, the first configuration of the first SS may not directly configure the frequency range of the first SS, but instead uses the second configuration of the second SS to determine the frequency range of the first SS.

[0536] In some embodiments, the second configuration includes a frequency domain range configuration of a second SS;

[0537] Each RB of an RBG is located in the frequency domain of the second SS, and the corresponding bit in the second bitmap has a first value;

[0538] At least one RB of an RBG is located outside the frequency domain range of the second SS, and the corresponding bit in the second bitmap has a second value.

[0539] The first RB in the RBG corresponding to the first bit of the second bitmap is the first RB in the second frequency domain range;

[0540] The second value is different from the first value.

[0541] For example, the first value and the second value here can be one of "0" and "1". If the first value is "0", the second value is "1". If the first value is "1", the second value is "0".

[0542] In some embodiments, the first bitmap of the first configuration is defaulted, and the second bitmap is reused to determine the third frequency range; the frequency range of the first SS is a subset of the third frequency range;

[0543] When the second bitmap has a bit with a first value and satisfies a third condition, the RBG corresponding to the bit with the first value is within a third frequency domain;

[0544] When the second bitmap has a bit with the first value and does not meet the third condition, the RBG corresponding to the bit with the first value is not within the third frequency domain;

[0545] The second bitmap has a bit with a second value, and the RBG corresponding to the bit with the second value is not within the third frequency domain.

[0546] In some embodiments, the third frequency range may be the maximum frequency range of the first SS.

[0547] In some embodiments, there are multiple third conditions. An optional method is provided below:

[0548] The third condition is that the RBGs corresponding to the bits with the first value in the second bitmap are all located within the first frequency domain range; wherein, the first frequency domain range is: the frequency domain range of the bandwidth part BWP to which the CORESET belongs or the common frequency domain resources CFR of the multicast broadcast service MBS used for DL ​​transmission on the SBFD time domain unit.

[0549] Solution 2.1.4

[0550] The frequency ranges of the first SS and the second SS are still configured differently. However, the first configuration of the first SS may not directly configure the frequency range of the first SS, but instead uses the second configuration of the second SS to determine the frequency range of the first SS.

[0551] In some embodiments, the first bitmap of the first configuration is defaulted, and the second bitmap is reused to determine a fourth frequency range; the frequency range of the first SS is a subset of the fourth frequency range;

[0552] When the second bitmap has a bit with the first value and satisfies the fourth condition, the RBs in the RBG corresponding to the bit with the first value and belonging to the first frequency domain are within the fourth frequency domain;

[0553] When the second bitmap has a bit with the first value and the fourth condition is not met, the RBG corresponding to the bit with the first value is not within the fourth frequency domain;

[0554] There are bits with a second value in the second bitmap, and the RBG corresponding to the bits with the second value is not within the fourth frequency domain.

[0555] The first bitmap of the first configuration is default, which is equivalent to the first configuration not including the frequency range of the first SS. In this case, the frequency range of the first SS is determined based on the second bitmap.

[0556] In some embodiments, the fourth frequency range may be the maximum frequency range of the first SS.

[0557] In some embodiments, part or all of the RBGs corresponding to the bits with the first value in the second bitmap are located within the first frequency domain range, wherein the first frequency domain range is: the bandwidth part BWP to which the CORESET belongs or the common frequency domain resources CFR of the multicast broadcast service MBS are used for DL ​​transmission on the SBFD time domain unit.

[0558] It is worth noting that: in both solutions 2.1.3 and 2.1.4, the second configuration has a frequency range configured for the second SS, and the frequency range of the second SS is indicated by the second bitmap.

[0559] In some embodiments, the second configuration includes a frequency domain range configuration of a second SS;

[0560] Each RB of an RBG is located in the frequency domain of the second SS, and the corresponding bit in the second bitmap has a first value;

[0561] At least one RB of an RBG is located outside the frequency domain range of the second SS, and the corresponding bit in the second bitmap has a second value.

[0562] The first RB in the RBG corresponding to the first bit of the second bitmap is the first RB in the second frequency domain range;

[0563] The second value is different from the first value.

[0564] That is, when configuring the first SS and the second SS, different configuration interpretation methods are adopted, and the frequency ranges of the first SS and the second SS are indicated simultaneously by using one bitmap, thereby reducing the signaling overhead of the first information.

[0565] At the same time, in schemes 2.1.3 and 2.1.4, the frequency range, CCE, control resource set and / or time-frequency resources of the PDCCH candidate of the first SS can be determined respectively in the following manners.

[0566] In some embodiments, the number of REGs included in the first SS does not exceed

[0567] is the maximum number of REGs included in the first SS;

[0568] is the number of RBs included in the third frequency domain range or the fourth frequency domain range;

[0569] is the number of time domain units Z1 contained in the first SS.

[0570] In some embodiments, for the interleaving mode, the number of REGs of the first SS is and It has the following characteristics:

[0571] exist The value range of is the largest positive integer;

[0572] exist The value range of is the largest positive integer;

[0573] Wherein, L4 is the size of the REG bundle of the first SS; R4 is the size of the interleaver of the first SS;

[0574] and / or,

[0575] For the non-interleaved mode, the number of REGs of the first SS is and It has the following characteristics:

[0576] exist The value range is The largest positive integer.

[0577] In some embodiments, the The time-frequency resources of REG are: The time-frequency resources of the remaining REGs after removing the N4 REGs with the largest REG index or removing the N4 REGs with the smallest REG index;

[0578] described The time-frequency resources of REG are: The time-frequency resources of the remaining REGs after removing the N5 REGs with the largest REG index or removing the N5 REGs with the smallest REG index.

[0579] In Plan 2.1.1, Plan 2.1.3 and Plan 2.1.4:

[0580] Differentiated configuration of REG bundling for the first SS and the second SS:

[0581] For the interleaving mode, the first configuration indicates a preset size of a REG bundle of the first SS, and the first SS uses the preset size of the REG bundle; and / or,

[0582] Regarding the interleaving mode, the first configuration does not indicate the preset size of the REG bundle of the first SS, and the first SS uses the preset size of the REG bundle indicated by the second configuration.

[0583] For the non-interleaved mode, the preset sizes of the REG bundles of the first SS and the second SS are both 6, and no configuration is required.

[0584] That is, whether it is necessary to implement differentiated configuration of the REG bundling sizes of the first SS and the second SS is determined based on whether the mapping mode between the REG bundling of the first SS and the CCE adopts the interleaving mode.

[0585] In Plan 2.1.1, Plan 2.1.3 and Plan 2.1.4:

[0586] Different configurations of the interleaver for the first SS and the second SS:

[0587] With respect to the interleaving mode, the first configuration indicates a preset size of an interleaver of the first SS, and the first SS uses the preset size of the interleaver, and / or,

[0588] Regarding the interleaving mode, the first configuration does not indicate a preset size of the interleaver of the first SS, and the first SS uses the preset size of the interleaver indicated by the second configuration.

[0589] In the non-interleaving mode, the first SS and the second SS do not use an interleaver, and the preset sizes of the interleavers of the first SS and the second SS do not need to be configured.

[0590] That is, whether it is necessary to implement differentiated configuration of the interleavers of the first SS and the second SS is determined based on whether the mapping mode between REGs bundled in the first SS and CCEs adopts the interleaving mode.

[0591] By adopting schemes 2.1.1, 2.1.3 and 2.1.4, the PDCCH candidates of the first SS can be configured within the DL frequency range as much as possible, and correct mapping between REG and control channel element CCE can be guaranteed.

[0592] When any of the solutions in Solution 2 is adopted, the configuration of the first SS and the second SS may also have the following characteristics:

[0593] A mapping rule between REGs and control channel elements (CCEs) of the first SS is different from a mapping rule between REGs and CCEs of the second SS;

[0594] or,

[0595] The mapping rule between the REGs of the first SS and the control channel elements CCEs is the same as the mapping rule between the REGs of the second SS and the CCEs.

[0596] That is, the mapping manners between REGs and CCEs of the first SS and the second SS may be the same or different, and thus can be flexibly configured.

[0597] FIG3 is an interactive diagram illustrating a method for processing the time-frequency resources of a PDCCH candidate according to an embodiment of the present disclosure. As shown in FIG3 , the embodiment of the present disclosure relates to a method for processing the time-frequency resources of a PDCCH candidate, which is executed by a terminal. The method includes:

[0598] S3101: Receive first information.

[0599] In some embodiments, first information sent by an access network device is received.

[0600] In some embodiments, the connected terminal receives the first information multicast, broadcast or unicast by the access network device.

[0601] For example, a connection release message is sent when a terminal in a connected state enters a non-connected state to receive the first information.

[0602] In some other embodiments, a terminal in a non-connected state receives first information broadcast or multicast by an access network device.

[0603] Illustratively, the non-connected state includes, but is not limited to, an idle state and / or an inactive state.

[0604] For the relevant description of the information content of the first information here, please refer to the embodiment shown in FIG2 .

[0605] S3102: Determine, according to the first information, the time-frequency resources of the PDCCH candidates included in the first SS.

[0606] The specific method of determining the time-frequency resources of the PDCCH candidates included in the first SS according to the first information can be found in the relevant description of S2102 in FIG. 2 , so it will not be repeated here.

[0607] S3103: Determine the time-frequency resources of the PDCCH candidates included in the second SS according to the first information.

[0608] Here, the step of determining the time-frequency resources of the PDCCH candidates included in the second SS according to the first information can be referred to the relevant description of S2103 in FIG. 2 , and thus will not be repeated here.

[0609] In some embodiments, S3101 and S3102 are implemented in combination, that is, S3103 is an optional step. For example, if the SS set configured by the first information only includes the first SS, S3103 does not need to be executed.

[0610] In some embodiments, S3101 and S3103 are implemented in combination, that is, step S3102 is an optional step. For example, if the SS set configured by the first information only includes the second SS, then S3102 does not need to be performed.

[0611] In some embodiments, after S3101 is executed, S3102 and S3103 are executed respectively. In this case, there is no specific order between S3102 and S3103. S3102 can be executed first and then S3103, or S3102 and S3103 can be executed simultaneously, or S3103 can be executed first and then S3102.

[0612] FIG4 is an interactive diagram illustrating a method for processing time-frequency resources of a PDCCH candidate according to an embodiment of the present disclosure. As shown in FIG4 , the embodiment of the present disclosure relates to a method for processing time-frequency resources of a PDCCH candidate, which is executed by a terminal. The method includes:

[0613] S4101: Send the first message.

[0614] In some embodiments, the access network device sends the first information.

[0615] In some embodiments, the access network device sends the first information to the terminal.

[0616] In other embodiments, the access network device receives the first information via broadcast, multicast, or unicast.

[0617] For the relevant description of the information content of the first information here, please refer to the embodiment shown in FIG2 .

[0618] In some embodiments, the method may further include:

[0619] Determine time-frequency resources of PDCCH candidates included in the first SS and / or the second SS;

[0620] The first information is generated according to the video resources of the PDCCH candidates included in the first SS and / or the second SS.

[0621] The step of generating the first information may be performed by the access network device according to a configuration rule, etc. In short, the description of the first information generated by the access network device can be found in the embodiment shown in FIG2 , and will not be repeated here.

[0622] The following takes the SBFD time domain unit as an SBFD symbol as an example, and exemplifies the configuration of a CORESET with an index of m (ie, CORESET#m), an SS, and a PDCCH candidate:

[0623] When the SS associated with CORESET#m is in SBFD symbols, the CCE-REG uses the non-interleaved mapping mode by default.

[0624] CORESET#m configures two sets of parameters for non-SBFD symbols and SBFD symbols respectively.

[0625] As shown in FIG. 1K , the method may include:

[0626] Step 1: Receive first information, where the first information may include configuration information of a CORESET with an index of m and / or configuration information of an SS set associated with the CORESET.

[0627] The SS set includes one or more first SSs: symbols of the first SSs are all SBFD symbols, and configuration information of the first SSs includes the number X1 of PDCCH candidates with aggregation level A1, where indexes of the X1 PDCCH candidates are 0 to X1-1.

[0628] The time-frequency resources of the PDCCH candidate with aggregation level A1 include A1 CCEs.

[0629] The first information may include configuration information of the CORESET.

[0630] The configuration information of CORESET includes that the first SS occupies Z1 time domain units.

[0631] The SS set includes one or more second SSs: symbols of the second SSs are all non-SBFD symbols, and configuration information of the second SSs includes the number X2 of PDCCH candidates with aggregation level A2, where the indexes of the X2 PDCCH candidates are 0 to X2-1.

[0632] The configuration information of CORESET includes that the second SS occupies Z2 time domain units.

[0633] m is a positive integer. A1 is a positive integer; X1 is a positive integer; Z1 is a value from 1, 2, and 3. A2 is a positive integer; X2 is a positive integer; Z2 is a value from 1, 2, and 3.

[0634] A2 is the same as or different from A1; and / or,

[0635] X2 is the same as or different from X1; and / or,

[0636] Z2 is the same as or different from Z1.

[0637] Step 2: Determine the index of A1 CCEs included in each PDCCH c candidate of the X1 PDCCH candidates in time slot k of the first SS according to the first information, the index k of the time slot where the first SS is located, and the identifier of the UE.

[0638] Determine, according to the first information, a time-frequency resource where any CCE in the first SS is located;

[0639] According to the time domain resource position of any one of the CCEs, the time-frequency resources of X1 PDCCH candidates are determined.

[0640] Option 2-1:

[0641] The first SS uses a non-interleaved method to determine the time-frequency position of the PDCCH candidate, and when the frequency domain range of the PDCCH candidate overlaps with the DL frequency domain range, the first SS does not detect the PDCCH on the PDCCH candidate.

[0642] The second SS uses the interleaving mode configured by the first information to determine the time-frequency position of the PDCCH candidate.

[0643] In Scheme 2-2 and Scheme 2-3:

[0644] The frequency domain range of the first SS is enabled to be within the first frequency domain range, and it is ensured that the CCE-REG can be correctly mapped.

[0645] The first frequency domain range may be a frequency domain range where the BWP or MBS CFR (Multicast and Broadcast Services common frequency resource) to which the CORESET belongs overlaps with the DL frequency domain range of the CC.

[0646] The frequency domain range of the second SS is enabled to be within the second frequency domain range, and it is ensured that the CCE-REG can be correctly mapped.

[0647] The second frequency domain range may be within the frequency domain range of the BWP or MBS CFR to which the CORESET belongs.

[0648] The first information includes a first configuration for the first SS and a second configuration for the second SS.

[0649] The frequency domain range of the first SS is indicated by a first bitmap of the first configuration, and one bit of the first bitmap is used to indicate whether an RBG including 6 RBs belongs to the first SS.

[0650] The frequency domain range of the second SS is indicated by the second bitmap of the first configuration, and one bit of the second bitmap is used to indicate whether an RBG including 6 RBs belongs to the second SS.

[0651] The leftmost bit of the first bitmap and the second bitmap corresponds to the first RBG in the BWP to which the CORESET belongs or in the MBS CFR.

[0652] Plan 2-2:

[0653] The frequency domain ranges of the first SS and the second SS are configured differently. In this case, optionally, for the interleaving mode, the REG bundling size and the interleaver size can be configured differently.

[0654] An example of configuring an SBFD symbol is as follows:

[0655] frequencyDomainResources_SBFD

[0656] reg-BundleSize_SBFD

[0657] interleaverSize_SBFD.

[0658] When the REG bundle size is configured differently, the REG bundle size of the SBFD symbol is reg-BundleSize_SBFD. Otherwise, the REG bundle size reg-BundleSize of the non-SBFD symbol is used.

[0659] When the interleaver size is configured differently, the interleaver size of the SBFD symbol is interleaverSize_SBFD, otherwise the interleaver size of the non-SBFD symbol is used.

[0660] The frequency domain range configuration in the SBFD symbol can be determined as follows:

[0661] In Plan 2-2-1 and Plan 2-2-2:

[0662] In the first bitmap, when all RBs in the RBG are within the first frequency domain, the corresponding bit value is 1 or 0, and / or when not all RBs in the RBG are within the first frequency domain, the corresponding bit value is 0.

[0663] In the second bitmap, when all RBs in the RBG are within the second frequency domain, the corresponding bit value is 1 or 0, and / or when not all RBs in the RBG are within the second frequency domain, the corresponding bit value is 0.

[0664] Solution 2-2-1: The RBs contained in an RBG are continuous in the frequency domain.

[0665] As shown in the RBG configuration in the first row of Figure 1I, RB#15-20 are outside the DL frequency domain range. The bits corresponding to the RBGs containing RB#15-20 need to be 0. At this time, the frequency domain range corresponding to the SBFD symbol includes RB#0-11 and 24-35, totaling 24 RBs.

[0666] Solution 2-2-2: The RBs contained in an RBG may be discontinuous in the frequency domain.

[0667] As shown in the second row of RBG configuration in Figure 1I, the third RBG includes RB#12, 13, 14, 21, 22, and 23. At this time, the frequency domain range corresponding to the SBFD symbol includes RB#0 to 14, 21 to 35, totaling 30 RBs.

[0668] The first SS uses the interleaving method, through scheme 2-2-1 and scheme 2-2-2, to enable the first SS. and is an integer. L3 and R3 are the number of REGs, REG bundling size, and interleaver size of the first SS respectively. is the number of RBs contained in the first SS in the frequency domain, is the number of symbols contained in the first SS time domain.

[0669] When the first SS uses the non-interleaved mode, schemes 2-2-1 and 2-2-2 are used to enable the first SS. is an integer

[0670] Option 2-3:

[0671] The frequency domain non-differentiated configurations of the first SS and the second SS may be as follows:

[0672] Optional: When interleaving, the REG bundle size and interleaver size can be configured differently

[0673] An example of configuring an SBFD symbol is as follows:

[0674] reg-BundleSize_SBFD

[0675] interleaverSize_SBFD

[0676] When the REG bundle size is configured differently, the REG bundle size of the SBFD symbol is reg-BundleSize_SBFD, otherwise the default size of the REG bundle of the non-SBFD symbol (reg-BundleSize) is used.

[0677] When the interleaver size is configured differently, the interleaver size of the SBFD symbol is interleaverSize_SBFD, otherwise the interleaver size of the non-SBFD symbol is used (interleaverSize).

[0678] The maximum frequency domain range of the first SS in the SBFD symbol can be determined as follows:

[0679] The third and fourth frequency domain ranges are determined based on the second bitmap. In this case, the first information does not configure the frequency range of the first service segment. The third and fourth frequency ranges can both be understood as the maximum frequency range of the first service segment under different configurations. That is, the frequency range of the first service segment can be a subset of the third or fourth frequency range.

[0680] Solution 2-3-1: The third frequency domain range can be as follows:

[0681] The RBG with a value of 1 in the second bitmap has no overlap with the first frequency domain range, and the RBG is within the third frequency domain range.

[0682] The RBG with a value of 1 in the second bitmap overlaps outside the first frequency domain range, and the RBG is not within the third frequency domain range.

[0683] The RBG with a value of 0 in the second bitmap is not within the third frequency domain.

[0684] Solution 2-3-2: The fourth frequency domain range can be as follows:

[0685] The RBG with a value of 1 in the second bitmap has no overlap with the outside of the first frequency domain range, and the RBG is within the fourth frequency domain range.

[0686] The RBG with a value of 1 in the second bitmap overlaps with the outside of the first frequency domain range, and the RB in the RBG that overlaps with the first frequency domain range is within the fourth frequency domain range.

[0687] The RBG with a value of 0 in the second bitmap is not within the fourth frequency domain.

[0688] The RBG configuration of the first row in FIG1J may be the configuration of scheme 2-3-1.

[0689] The RBG configuration of the second row in FIG. 1J may be the configuration of scheme 2-3-2.

[0690] When the first SS uses interleaving, the number of REGs contained in the first SS is understood as For no more than And enable and is the maximum integer, where L and R are the REG bundling size and interleaver size of the first SS respectively.

[0691] is the number of REGs determined according to solution 2-3-1 or 2-3-2, The time-frequency resources of a REG are The time-frequency resources of the remaining REGs after removing the N4 REGs with the largest REG index or the N4 REGs with the smallest REG index from the REGs.

[0692] Example: L=2,R=6, enabled when N4=6 and is an integer

[0693] When the first SS uses non-interleaving, the number of REGs contained in the first SS is understood as For no more than And enable The maximum number of integers.

[0694] is the number of REGs determined according to solution 2-3-1 or 2-3-2, The time-frequency resources of a REG are The time-frequency resources of the remaining REGs after removing the N5 REGs with the largest REG index or the N5 REGs with the smallest REG index from the REGs

[0695] Example: Enabled when N5=0 is an integer

[0696] In schemes 2-1, 2-2, and 2-3, the mapping rule between REGs and control channel elements (CCEs) of the first SS may be different from or the same as the mapping rule between REGs and CCEs of the second SS.

[0697] The SS configuration must meet the following constraints:

[0698] The symbols where the first SS is located are all SBFD symbols, and the symbols where the second SS is located are all non-SBFD symbols.

[0699] Base station side: The specific method is as described on the terminal side and will not be repeated here.

[0700] In summary: when the SS associated with CORESET#m is in SBFD symbols, the CCE-REG uses a non-interleaved mapping mode by default; and / or, CORESET#m is configured with two sets of parameters for non-SBFD symbols and SBFD symbols respectively.

[0701] The embodiments of the present disclosure also provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device or a core network device) in any of the above methods.

[0702] It should be understood that the division of the various units or modules in the above devices is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above devices, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0703] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0704] FIG5 is a schematic diagram of the structure of a terminal provided by an embodiment of the present disclosure. As shown in FIG5 , the terminal provided by an embodiment of the present disclosure includes:

[0705] The receiving module 501 is configured to receive first information, wherein the first information is used to indicate the time-frequency resources of the search space SS set; wherein the time domain unit where one or more first SSs in the SS set are located is a sub-band full-duplex (SBFD) time domain unit;

[0706] The processing module 502 is configured to determine the time-frequency resources of the PDCCH candidates included in the first SS according to the first information.

[0707] Optionally, the receiving module 501 may be configured to execute the steps related to information reception performed by the terminal in any of the above methods for processing time-frequency resources of PDCCH candidates, which will not be described in detail here. The above terminal may further include: a sending module configured to perform uplink transmission.

[0708] In some embodiments, the terminal may include one or more processing modules 502 , and the processing modules 502 may be used to perform information processing.

[0709] FIG6 is a schematic diagram of the structure of an access network device provided in an embodiment of the present disclosure. As shown in FIG6 , the access network device provided in an embodiment of the present disclosure includes:

[0710] The sending module 601 is configured to send first information, wherein the first information is at least used to indicate the time-frequency resources of the physical downlink control channel PDCCH candidates contained in the search space SS set; the time domain units where one or more first SSs in the SS set are located are all sub-band full-duplex SBFD time domain units.

[0711] Optionally, the sending module 601 may execute any sending action in the method executed by the access network device.

[0712] In some embodiments, the access network device further includes one or more processing modules, which can be used to perform information processing.

[0713] In other embodiments, the access network device may further include one or more receiving modules, which may be used to receive uplink transmissions from the terminal.

[0714] FIG7 is a schematic diagram of the structure of a communication device 8100 provided in an embodiment of the present disclosure. The communication device 8100 can be a terminal and a network device (e.g., an access network device or a core network device), or a terminal (e.g., a user equipment (UE)), or a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods for processing time-frequency resources of PDCCH candidates. The communication device 8100 can be used to implement the method for processing time-frequency resources of PDCCH candidates described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0715] As shown in Figure 7, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The processor 8101 is used to call instructions to enable the communication device 8100 to execute any of the above-mentioned time-frequency resource processing methods for PDCCH candidates.

[0716] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100. The memories 8102 store instructions for the processor 8101 to call.

[0717] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the communication steps such as sending and receiving in the above method are performed by the transceiver 8103, and the other steps are performed by the processor 8101.

[0718] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0719] Optionally, the communication device 8100 further includes one or more interface circuits 8104, which are connected to the memory 8102. The interface circuits 8104 can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices. For example, the interface circuits 8104 can read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0720] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: (1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0721] FIG8 is a schematic diagram of the structure of a chip 8200 provided in an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 8200 shown in FIG8 , but the present disclosure is not limited thereto.

[0722] The chip 8200 includes one or more processors 8201, and the processor 8201 is used to call instructions to enable the chip 8200 to execute any of the above methods for processing time-frequency resources of PDCCH candidates.

[0723] In some embodiments, chip 8200 further includes one or more interface circuits 8202, which are connected to memory 8203. Interface circuit 8202 can be used to receive signals from memory 8203 or other devices, and can be used to send signals to memory 8203 or other devices. For example, interface circuit 8202 can read instructions stored in memory 8203 and send the instructions to processor 8201. Optionally, the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.

[0724] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0725] The present disclosure also provides a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but may also be a transient storage medium.

[0726] The present disclosure further provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods for processing time-frequency resources of PDCCH candidates. Optionally, the program product is a computer program product.

[0727] The present disclosure also provides a computer program, which, when executed on a computer, enables the computer to execute any of the above methods for processing time-frequency resources of PDCCH candidates.

[0728] Other embodiments of the presently disclosed embodiments will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the presently disclosed embodiments that follow the general principles of the presently disclosed embodiments and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only, with the true scope and spirit of the presently disclosed embodiments being indicated by the following claims.

[0729] It should be understood that the embodiments of the present disclosure are not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the embodiments of the present disclosure is limited only by the appended claims.

Claims

1. A method for processing time-frequency resources of physical downlink control channel (PDCCH) candidates, wherein: The method comprises: The terminal receives first information, wherein the first information is used to indicate the time-frequency resources of the search space SS set; wherein the time domain unit where one or more first SSs in the SS set are located is a sub-band full-duplex SBFD time domain unit; According to the first information, the time-frequency resources of the PDCCH candidates included in the first SS are determined.

2. The method according to claim 1, wherein: The first information includes at least one of the following: Configuration information of the control resource set CORESET with index m; the value of m is a positive integer; Configuration information of the SS set associated to the CORESET; A frequency domain range available for DL ​​transmission on the carrier component CC in the SBFD time domain unit; The configuration information of the CORESET indicates that the first SS occupies Z1 time domain units in the time domain; The configuration information of the SS set indicates that the number of PDCCH candidates with aggregation level A1 in the first SS is X1, and the indexes of the X1 PDCCH candidates are 0 to X1-1; The time-frequency resources of the PDCCH candidate with aggregation level A1 include A1 control channel elements CCE; A1 is a positive integer; X1 is a positive integer; The Z1 is a value among 1, 2 and 3.

3. The method according to claim 2, wherein: The determining, according to the first information, time-frequency resources of the PDCCH candidates included in the first SS includes: Determine, according to the first information, an index k of the time slot where the first SS is located; Determine, according to the index k of the timeslot where the first SS is located and the identifier of the terminal, the index of the control channel element CCE included in the PDCCH candidate located in the timeslot of index k; Determine, according to the first information, a time-frequency resource of any CCE included in the first SS; The time-frequency resources of the X1 PDCCH candidates are determined according to the index of the CCE included in the PDCCH.

4. The method according to claim 2, wherein: The time domain units where one or more second SSs in the SS set are located are all non-SBFD time domain units, and the number of PDCCH candidates of aggregation level A2 included in the second SS is X2; The configuration information of the CORESET indicates that the second SS in the SS set occupies Z2 time domain units in the time domain; A2 is a positive integer; X2 is a positive integer; Z2 is a value among 1, 2 and 3; A2 is the same as or different from A1; and / or, X2 is the same as or different from X1; and / or, The Z2 is the same as or different from Z1.

5. The method according to claim 1, characterized in that The SBFD time domain unit is a time domain unit including a downlink connection DL subband and an uplink connection UL subband in the frequency domain; and / or, The non-SBFD time domain unit is a DL time domain unit, a UL time domain unit or a flexible time domain unit.

6. The method according to claim 5, characterized in that The SBFD time domain unit includes a guard band GB in the frequency domain; wherein the GB is located between the DL sub-band and the UL sub-band.

7. The method according to claim 4, wherein: A first mode is used to determine the time-frequency resources of the PDCCH candidates included in the first SS, wherein the first mode includes a non-interleaved mode; The second method is used to determine the time-frequency resources of the PDCCH candidates included in the second SS, wherein the second method is one of an interleaved method and a non-interleaved method, and the configuration information of the CORESET also indicates the second method.

8. The method according to any one of claims 1 to 7, wherein: The first information is used to ensure that the frequency domain range of the first SS is within the first frequency domain range, and to ensure that the mapping of the CCE of the first SS to the resource element group REG satisfies a first condition.

9. The method according to claim 8, wherein: The first frequency domain range is: a frequency domain range in which the bandwidth part BWP to which the control resource set CORESET belongs or the common frequency domain resources CFR of the multicast broadcast service MBS is used for DL ​​transmission in the SBFD time domain unit.

10. The method according to claim 4, wherein: The first information is used to ensure that the frequency domain range of the second SS is within the second frequency domain range, and the mapping of the CCE used for the second SS to the resource element group REG satisfies a second condition.

11. The method according to claim 10, wherein: The second frequency domain range is a frequency domain range of a bandwidth part BWP to which the CORESET belongs or a common frequency domain resource CFR of a multicast broadcast service MBS.

12. The method according to claim 4, wherein: The first information includes: A first configuration, used for configuration of the first SS; The second configuration is used for the configuration of the second SS.

13. The method according to claim 12, wherein: With respect to determining the time-frequency resources of the PDCCH candidate using an interleaved manner or a non-interleaved manner, a frequency domain range of a first SS indicated by the first configuration is different from a frequency domain range of a second SS indicated by the second configuration.

14. The method according to claim 12, wherein: The frequency domain range of the first SS is indicated by a first bitmap of the first configuration; wherein one bit in the first bitmap is used to indicate whether a resource block group RBG including 6 resource blocks RB belongs to the frequency domain range of the first SS.

15. The method according to claim 12, wherein: The frequency domain range of the second SS is indicated by a second bitmap of the second configuration; wherein one bit in the second bitmap is used to indicate whether an RBG including 6 RBs belongs to the frequency domain range of the second SS.

16. The method according to claim 14 or 15, wherein: A frequency domain range of the first SS of the first configuration is different from a frequency domain range of the second SS of the second configuration; Each RB of an RBG is located within the frequency domain of the first SS, and a corresponding bit in the first bitmap has a first value or a second value; Each RB of an RBG is located within the frequency domain of the second SS, and a corresponding bit in the second bitmap has a first value or a second value; At least one RB of an RBG is located outside the frequency domain range of the first SS, and the corresponding bit in the first bitmap has a second value; At least one RB of an RBG is located outside the frequency domain range of the second SS, and the corresponding bit in the second bitmap has a second value; The first RB in the RBG corresponding to the first bit of the first bitmap is the first RB in the second frequency domain range; The first RB in the RBG corresponding to the first bit of the second bitmap is the first RB in the second frequency domain range; The second value is different from the first value.

17. The method according to any one of claims 14 to 16, wherein: The RBs included in one RBG are continuously distributed in the frequency domain; or, The RBs included in one RBG may be distributed discontinuously in the frequency domain.

18. The method according to claim 8, wherein: For the interleaving mode, the first condition is: is a positive integer; is a positive integer; For the non-interleaved mode, the first condition is: is an integer; in, is the number of REGs included in the time-frequency resources of the first SS; is the number of RBs included in the frequency domain range of the first SS; is the number of time domain units Z1 included in the first SS; L3 is the size of the REG bundle of the first SS; R3 is the size of the interleaver of the first SS.

19. The method according to claim 10, wherein: For the interleaving mode, the second condition is: is a positive integer; is a positive integer; For the non-interleaved mode, the second condition is: is an integer; in, is the number of REGs included in the time-frequency resources of the second SS; is the number of RBs included in the frequency domain range of the second SS; is the number of time domain units Z2 included in the second SS; L3 is the size of the REG bundle of the second SS; R3 is the size of the interleaver of the second SS.

20. The method according to claim 12, wherein: For the interleaving mode, the first configuration indicates a preset size of a REG bundle of the first SS, and the first SS uses the preset size of the REG bundle; and / or, For the interleaving mode, the first configuration does not indicate a preset size of the REG bundle of the first SS, and the first SS uses the preset size of the REG bundle indicated by the second configuration.

21. The method according to claim 12, wherein: For the interleaving mode, the first configuration indicates a preset size of an interleaver of the first SS, and the first SS uses the preset size of the interleaver, and / or, Regarding the interleaving mode, the first configuration does not indicate a preset size of an interleaver of the first SS, and the first SS uses the preset size of the interleaver indicated by the second configuration.

22. The method according to claim 12 or 15, wherein: The second configuration includes a frequency domain range configuration of a second SS; Each RB of an RBG is located within the frequency domain of the second SS, and a corresponding bit in the second bitmap has a first value; At least one RB of an RBG is located outside the frequency domain range of the second SS, and the corresponding bit in the second bitmap has a second value. The first RB in the RBG corresponding to the first bit of the second bitmap is the first RB in the second frequency domain range; The second value is different from the first value.

23. The method according to claim 22, wherein: The first bitmap of the first configuration is default, and the second bitmap is reused to determine the third frequency range; the frequency range of the first SS is a subset of the third frequency range; When the second bitmap has a bit with a first value and satisfies a third condition, the RBG corresponding to the bit with the first value is within a third frequency domain; When the second bitmap has a bit with the first value and does not meet the third condition, the RBG corresponding to the bit with the first value is not within the third frequency domain; The second bitmap has a bit with a second value, and the RBG corresponding to the bit with the second value is not within the third frequency domain.

24. The method according to claim 23, wherein: The third condition is that all RBGs corresponding to bits with the first value in the second bitmap are located within the first frequency domain range; wherein the first frequency domain range is: the frequency domain range of the bandwidth part BWP to which the CORESET belongs or the common frequency domain resources CFR of the multicast broadcast service MBS used for DL ​​transmission on the SBFD time domain unit.

25. The method according to claim 22, wherein: The first bitmap of the first configuration is default, and the second bitmap is reused to determine the fourth frequency range; the frequency range of the first SS is a subset of the fourth frequency range; When the second bitmap has a bit with the first value and satisfies the fourth condition, the RBs in the RBG corresponding to the bit with the first value and belonging to the first frequency domain are within the fourth frequency domain; When the second bitmap has a bit with the first value and does not meet the fourth condition, the bit with the first value corresponds to RBG is not within the fourth frequency domain; There are bits with a second value in the second bitmap, and the RBG corresponding to the bits with the second value is not within the fourth frequency domain.

26. The method according to claim 25, wherein: The fourth condition is: Part or all of the RBGs corresponding to the bits with the first value in the second bitmap are located within the first frequency domain range, wherein the first frequency domain range is: the frequency domain range of the bandwidth part BWP to which the CORESET belongs or the common frequency domain resources CFR of the multicast broadcast service MBS used for DL ​​transmission on the SBFD time domain unit.

27. The method according to any one of claims 22 to 26, wherein: The number of REGs included in the first SS does not exceed is the maximum number of REGs included in the first SS; is the number of RBs included in the third frequency domain range or the fourth frequency domain range; is the number of time domain units Z1 contained in the first SS.

28. The method according to claim 20, 21 or 27, wherein: For the interleaving mode, the number of REGs of the first SS is and It has the following features: exist The value range of is the largest positive integer; exist The value range of is the largest positive integer; Wherein, L4 is the size of the REG bundle of the first SS; R4 is the size of the interleaver of the first SS; and / or, For the non-interleaved mode, the number of REGs of the first SS is and It has the following features: exist The value range is The largest positive integer.

29. The method according to claim 28, wherein: Said The time-frequency resources of REG are: The time-frequency resources of the REGs remaining after removing the N4 REGs with the largest REG index or removing the N4 REGs with the smallest REG index; Said The time-frequency resources of REG are: The time-frequency resources of the remaining REGs after removing the N5 REGs with the largest REG index or removing the N5 REGs with the smallest REG index.

30. The method according to any one of claims 4 to 29, wherein: A mapping rule between REGs of the first SS and control channel elements CCEs is different from a mapping rule between REGs of the second SS and CCEs; or, The mapping rule between the REG of the first SS and the control channel element CCE is the same as the mapping rule between the REG of the second SS and the CCE.

31. The method according to any one of claims 4 to 29, wherein: The time domain units of the first SS are all SBFD time domain units, and the time domain units where the second SS is located are all non-SBFD time domain units.

32. A method for processing time-frequency resources of PDCCH candidates, wherein: The method comprises: The access network device sends first information, wherein the first information is at least used to indicate the time-frequency resources of the physical downlink control channel PDCCH candidates included in the search space SS set; The time domain units where one or more first SSs in the SS set are located are all sub-band full-duplex SBFD time domain units.

33. The method of claim 32, wherein: The first information includes at least one of the following: Configuration information of the control resource set CORESET with index m; the value of m is a positive integer; Configuration information of the SS set associated to the CORESET; A frequency domain range available for DL ​​transmission on the carrier component CC in the SBFD time domain unit; The configuration information of the CORESET indicates that the first SS occupies Z1 time domain units in the time domain; The configuration information of the SS set indicates that the number of PDCCH candidates with aggregation level A1 in the first SS is X1, and the indexes of the X1 PDCCH candidates are 0 to X1-1; The time-frequency resources of the PDCCH candidate with aggregation level A1 include A1 control channel elements CCE; A1 is a positive integer; X1 is a positive integer; The Z1 is a value among 1, 2 and 3.

34. The method of claim 33, wherein: The method further comprises: Determine, according to the first information, an index k of the time slot where the first SS is located; Determine, according to the index k of the timeslot where the first SS is located and the identifier of the terminal, the index of the control channel element CCE included in the PDCCH candidate located in the timeslot of index k; Determine, according to the first information, a time-frequency resource of any CCE included in the first SS; The time-frequency resources of the X1 PDCCH candidates are determined according to the index of the CCE included in the PDCCH.

35. The method of claim 34, wherein: The time domain units where one or more second SSs in the SS set are located are all non-SBFD time domain units, and the number of PDCCH candidates of aggregation level A2 included in the second SS is X2; The configuration information of the CORESET indicates that the second SS in the SS set occupies Z2 time domain units in the time domain; A2 is a positive integer; X2 is a positive integer; Z2 is a value among 1, 2 and 3; A2 is the same as or different from A1; and / or, X2 is the same as or different from X1; and / or, The Z2 is the same as or different from Z1.

36. The method according to claim 32, characterized in that The SBFD time domain unit is a time domain unit including a downlink connection DL subband and an uplink connection UL subband in the frequency domain; The non-SBFD time domain unit is a time domain unit that does not include a DL subband and a UL subband in the frequency domain.

37. The method according to claim 36, characterized in that The SBFD time domain unit includes a guard band GB in the frequency domain; wherein the GB is located between the DL sub-band and the UL sub-band.

38. The method of claim 35, wherein: A first mode is used to determine the time-frequency resources of the PDCCH candidates included in the first SS; or, wherein the first mode includes a non-interleaved mode; The second method is used to determine the time-frequency resources of the PDCCH candidates included in the second SS, wherein the second method is one of an interleaved method and a non-interleaved method, and the configuration information of the CORESET also indicates the second method.

39. The method according to any one of claims 32 to 38, wherein: The first information is used to ensure that the frequency domain range of the first SS is within the first frequency domain range, and to ensure that the mapping of the CCE of the first SS to the resource element group REG satisfies a first condition.

40. The method of claim 39, wherein: The first frequency domain range is: a frequency domain range used for DL ​​transmission in a SBFD time domain unit by a bandwidth part BWP to which a control resource set CORESET belongs or a common frequency domain resource CFR of a multicast broadcast service MBS.

41. The method of claim 35, wherein: The first information is used to ensure that the frequency domain range of the second SS is within the second frequency domain range, and the mapping of the CCE used for the second SS to the resource element group REG satisfies a second condition.

42. The method according to claim 41, wherein: The second frequency domain range is a frequency domain range of a bandwidth part BWP to which the CORESET belongs or a common frequency domain resource CFR of a multicast broadcast service MBS.

43. The method of claim 35, wherein: The first information includes: A first configuration, used for configuration of the first SS; The second configuration is used for the configuration of the second SS.

44. The method of claim 43, wherein: With respect to determining the time-frequency resources of the PDCCH candidate using an interleaved manner or a non-interleaved manner, a frequency domain range of a first SS indicated by the first configuration is different from a frequency domain range of a second SS indicated by the second configuration.

45. The method of claim 43, wherein: The frequency domain range of the first SS is indicated by a first bitmap of the first configuration; wherein one bit in the first bitmap is used to indicate whether a resource block group RBG including 6 resource blocks RB belongs to the frequency domain range of the first SS.

46. ​​The method of claim 43, wherein: The frequency domain range of the second SS is indicated by a second bitmap of the second configuration; wherein one bit in the second bitmap is used to indicate whether an RBG including 6 RBs belongs to the frequency domain range of the second SS.

47. The method according to claim 45 or 46, wherein: A frequency domain range of the first SS of the first configuration is different from a frequency domain range of the second SS of the second configuration; Each RB of an RBG is located within the frequency domain of the first SS, and a corresponding bit in the first bitmap has a first value or a second value; Each RB of an RBG is located within the frequency domain of the second SS, and a corresponding bit in the second bitmap has a first value or a second value; At least one RB of an RBG is located outside the frequency domain range of the first SS, and the corresponding bit in the first bitmap has a second value; At least one RB of an RBG is located outside the frequency domain range of the second SS, and the corresponding bit in the second bitmap has a second value; The first RB in the RBG corresponding to the first bit of the first bitmap is the first RB in the second frequency domain range; The first RB in the RBG corresponding to the first bit of the second bitmap is the first RB in the second frequency domain range; The second value is different from the first value.

48. A method according to any one of claims 45 to 47, wherein: The RBs included in one RBG are continuously distributed in the frequency domain; or, The RBs included in one RBG may be distributed discontinuously in the frequency domain.

49. The method of claim 40, wherein: For the interleaving mode, the first condition is: is a positive integer; is a positive integer; For the non-interleaved mode, the first condition is: is an integer; in, is the number of REGs included in the time-frequency resources of the first SS; is the number of RBs included in the frequency domain range of the first SS; is the number of time domain units Z1 included in the first SS; L3 is the size of the REG bundle of the first SS; R3 is the size of the interleaver of the first SS.

50. The method of claim 41, wherein: For the interleaving mode, the second condition is: is a positive integer; is a positive integer; For the non-interleaved mode, the second condition is: is an integer; in, is the number of REGs included in the time-frequency resources of the second SS; is the number of RBs included in the frequency domain range of the second SS; is the number of time domain units Z2 included in the second SS; L3 is the size of the REG bundle of the second SS; R3 is the size of the interleaver of the second SS.

51. The method of claim 43, wherein: For the interleaving mode, the first configuration indicates a preset size of a REG bundle of the first SS, and the first SS uses the preset size of the REG bundle; and / or, For the interleaving mode, the first configuration does not indicate a preset size of the REG bundle of the first SS, and the first SS uses the preset size of the REG bundle indicated by the second configuration.

52. The method of claim 43, wherein: With respect to the interleaving mode, the first configuration indicates a preset size of an interleaver of the first SS, and the first SS uses the preset size of the interleaver; and / or, Regarding the interleaving mode, the first configuration does not indicate a preset size of an interleaver of the first SS, and the first SS uses the preset size of the interleaver indicated by the second configuration.

53. The method of claim 43 or 46, wherein: The second configuration includes a frequency domain range configuration of a second SS; Each RB of an RBG is located within the frequency domain of the second SS, and a corresponding bit in the second bitmap has a first value; At least one RB of an RBG is located outside the frequency domain range of the second SS, and the corresponding bit in the second bitmap has a second value. The first RB in the RBG corresponding to the first bit of the second bitmap is the first RB in the second frequency domain range; The second value is different from the first value.

54. The method of claim 53, wherein: When the second bitmap has a bit with a first value and satisfies a third condition, the RBG corresponding to the bit with the first value is within a third frequency domain; When the second bitmap has a bit with the first value and does not meet the third condition, the RBG corresponding to the bit with the first value is not within the third frequency domain; The second bitmap has a bit with a second value, and the RBG corresponding to the bit with the second value is not within the third frequency domain.

55. The method of claim 54, wherein: The third condition is that the RBGs corresponding to the bits with the first value in the second bitmap are all located in the first frequency domain.

56. The method according to claim 53, when there is a bit with a first value in the second bitmap and a fourth condition is met, the RBs in the RBG corresponding to the bit with the first value and belonging to the first frequency domain are within the fourth frequency domain; When the second bitmap has a bit with the first value and the fourth condition is not met, the RBG corresponding to the bit with the first value is not within the fourth frequency domain; There are bits with a second value in the second bitmap, and the RBG corresponding to the bits with the second value is not within the fourth frequency domain.

57. The method of claim 56, wherein: The fourth condition is: Part or all of the RBGs corresponding to the bits with the first value in the second bitmap are located within the first frequency domain.

58. A method according to any one of claims 53 to 57, wherein: The number of REGs included in the first SS does not exceed is the maximum number of REGs included in the first SS; is the number of RBs included in the third frequency domain range or the fourth frequency domain range; is the number of time domain units Z1 contained in the first SS.

59. The method of claim 56, 57 or 58, wherein: For the interleaving mode, the number of REGs of the first SS is and It has the following features: exist The value range of is the largest positive integer; exist The value range of is the largest positive integer; Wherein, L4 is the size of the REG bundle of the first SS; R4 is the size of the interleaver of the first SS; and / or, For the non-interleaved mode, the number of REGs of the first SS is and It has the following features: exist The value range is The largest positive integer.

60. The method of claim 59, wherein: Said The time-frequency resources of REG are: The time-frequency resources of the REGs remaining after removing the N4 REGs with the largest REG index or removing the N4 REGs with the smallest REG index; Said The time-frequency resources of REG are: The time-frequency resources of the remaining REGs after removing the N5 REGs with the largest REG index or removing the N5 REGs with the smallest REG index.

61. The method according to any one of claims 35 to 60, wherein: A mapping rule between REGs of the first SS and control channel elements CCEs is different from a mapping rule between REGs of the second SS and CCEs; or, The mapping rule between the REG of the first SS and the control channel element CCE is the same as the mapping rule between the REG of the second SS and the CCE.

62. The method according to any one of claims 35 to 60, wherein: The time domain units of the first SS are all SBFD time domain units, and the time domain units where the second SS is located are all non-SBFD time domain units.

63. A method for processing time-frequency resources of PDCCH candidates, wherein: include: The terminal executes the method according to any one of claims 1 to 31; The access network device executes the method described in any one of claims 32 to 62.

64. A terminal, wherein: include: The receiving module is configured to receive first information, wherein the first information is used to indicate the time-frequency resources of the search space SS set; the time domain units where one or more first SSs in the SS set are located are all sub-band full-duplex SBFD time domain units; The processing module is configured to determine the time-frequency resources of the physical downlink control channel PDCCH candidates included in the first SS according to the first information.

65. An access network device, wherein: include: A sending module is configured to send first information. Among them, the first information is at least used to indicate the time-frequency resources of the physical downlink control channel PDCCH candidates contained in the search space SS set; the time domain units where one or more first SSs in the SS set are located are all sub-band full-duplex SBFD time domain units.

66. A communication device, wherein: The communication device comprises: one or more processors; The processor is used to call instructions to enable the communication device to execute the time-frequency resource processing method of the PDCCH candidate described in any one of claims 1 to 31 or claims 32 to 62.

67. A storage medium, wherein: The storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the time-frequency resource processing method for PDCCH candidates described in any one of claims 1 to 31 or claims 32 to 62.

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