Communication method, communication device, storage medium, and program product

Abstract

Embodiments of the present disclosure provide a communication method, a communication device, a storage medium, and a program product. The method is executed by a network device. The method comprises: sending first information to a terminal, wherein the first information is used for indicating that a secondary cell (SCell) is a first-type SCell, the first-type SCell is configured with UL carriers and is not configured with DL carriers, or the first-type SCell is configured with UL carriers and DL carriers, and the number of the UL carriers is greater than or equal to the number of the DL carriers. In the embodiments of the present disclosure, UP carriers and DL carriers can be flexibly used for cells.

Description

Communication methods, communication equipment, storage media and software products Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a communication method, communication device, storage medium, and program product. Background Technology

[0002] In the field of communication technology, the carrier of wireless communication includes uplink (UP) carrier and downlink (DL) carrier. Summary of the Invention

[0003] After the introduction of UP carriers and DL carriers, how to apply UP carriers and DL carriers to cells is a question that needs to be considered.

[0004] According to a first aspect of the present disclosure, a communication method is proposed, which is performed by a network device. The method includes: sending first information to a terminal; wherein the first information is used to indicate that a secondary cell (SCell) is a first type SCell, the first type SCell is configured with UL carriers and the first type SCell cell is not configured with DL carriers, or the first type SCell is configured with both UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers.

[0005] According to a second aspect of the present disclosure, a communication method is proposed, which is executed by a terminal. The method includes: receiving first information sent by a network device; wherein the first information is used to indicate that the SCell is a first type of SCell, the first type of SCell is configured with a UL carrier and the first type of SCell cell is not configured with a DL carrier, or the first type of SCell is configured with both a UL carrier and a DL carrier, and the number of UL carriers is greater than or equal to the number of DL carriers.

[0006] According to a third aspect of the embodiments of this disclosure, a communication device is provided for performing the method described in an optional implementation of the first or second aspect.

[0007] According to a fourth aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on a communication device, cause the communication device to perform the method as described in an optional implementation of the first or second aspect.

[0008] According to a fifth aspect of the present disclosure, a program product is provided, comprising a computer program or instructions that, when executed by a processor, implement the method as described in the optional implementations of the first or second aspect.

[0009] In this embodiment of the disclosure, UP carriers and DL carriers can be flexibly applied to a cell. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0011] Figure 1 is a schematic diagram of the structure of a communication system according to an embodiment of the present disclosure.

[0012] Figure 2A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0013] Figure 3A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0014] Figure 3B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0015] Figure 4A is a schematic diagram illustrating a wireless communication according to an embodiment of the present disclosure.

[0016] Figure 4B is a schematic diagram illustrating a wireless communication according to an embodiment of the present disclosure.

[0017] Figure 5A is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure.

[0018] Figure 5B is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure.

[0019] Figure 6A is a schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure.

[0020] Figure 6B is a schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. Detailed Implementation

[0021] This disclosure provides a communication method, communication device, communication system, storage medium, and program product.

[0022] In a first aspect, embodiments of this disclosure propose a communication method, which is executed by a network device. The method includes: sending first information to a terminal; wherein the first information is used to indicate that the SCell is a first type of SCell, the first type of SCell is configured with a UL carrier and the first type of SCell cell is not configured with a DL carrier, or the first type of SCell is configured with both a UL carrier and a DL carrier, and the number of UL carriers is greater than or equal to the number of DL carriers.

[0023] In the above embodiments, the first information sent to the terminal can indicate that the SCell is a first type of SCell configured with UL carriers and not configured with DL carriers, or indicate that the SCell is a first type of SCell configured with both UL carriers and DL carriers and the number of UL carriers is greater than or equal to the number of DL carriers. In this way, the terminal can clearly determine its own carrier configuration, so that the terminal can apply UL carriers and DL carriers more flexibly based on its own carrier configuration.

[0024] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes one of the following: a first identifier; configuration information, in the case where the first type of SCell is configured with a UL carrier and the first type of SCell cell is not configured with a DL carrier, the configuration information indicates the configuration of the UL carrier, or in the case where the first type of SCell is configured with both UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers, the configuration information indicates the configuration of both the UL carriers and the DL carriers.

[0025] In the above embodiments, the SCell can be flexibly designated as a first type of SCell based on the first identifier or configuration information.

[0026] In conjunction with some embodiments of the first aspect, in some embodiments, when the first type of SCell is configured with a UL carrier and the first type of SCell cell is not configured with a DL carrier, the configuration of the UL carrier is indicated by a first signaling or a second signaling, wherein the first signaling is signaling carrying the configuration of the UL carrier and the second signaling is signaling without carrying the configuration of the DL carrier; when the first type of SCell is configured with both UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers, the configuration of the UL carriers and the configuration of the DL carriers are indicated by a third signaling, wherein the third signaling is signaling carrying the configuration of the UL carriers and the configuration of the DL carriers.

[0027] In the above embodiments, different signaling indication configurations can be adopted based on the configuration of the UL carrier and DL carrier of the first type of SCell, so that the signaling for transmission configuration can be adapted to the first type of SCell.

[0028] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: sending second information to the terminal; wherein the second information includes at least one of the following: a second identifier, the second identifier being used to indicate a first cell, the first cell being a cell that schedules SCells via carrier; an index of the SCell, the SCell being scheduled by the first cell according to the index; a third identifier, the third identifier being used to indicate a second cell, the second cell being a cell associated with the SCell, the second cell being used to assist the SCell in providing services; and configuration information of a reference signal, the reference signal being a signal transmitted in the second cell, the reference signal being used to assist the SCell in providing services.

[0029] In the above embodiments, since the second information sent to the terminal includes at least one of the second identifier, index, third identifier, and configuration information, the terminal can more reliably perform communication operations with SCell based on the second identifier, index, third identifier, and configuration information after receiving the second information.

[0030] In conjunction with some embodiments of the first aspect, in some embodiments, the reference signal includes a channel state information reference signal (CSI-RS) and / or a synchronization signal / pbch block (SSB).

[0031] The above embodiments are adaptable to scenarios using different reference signals, and are highly adaptable.

[0032] In conjunction with some embodiments of the first aspect, in some embodiments, the reference signal is associated with a random access channel occasion (RO) for accessing the SCell.

[0033] In the above embodiments, since the reference signal is associated with the RO used to access the SCell, the terminal can explicitly determine the RO based on the reference signal.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments, the system frame number (SFN) and / or time slot of the second cell are used to determine the resources used by the terminal in the SCell, including one or more of configured grant (CG) resources and dynamic grant (DG) resources.

[0035] In the above embodiments, the resources used by the terminal in the SCell can be explicitly determined based on the SFN and / or time slot of the second cell, making the method of determining resources more flexible.

[0036] In conjunction with some embodiments of the first aspect, in some embodiments, the measurement results of the reference signal are used for at least one of the following: carrier management of the SCell; supplementary uplink (SUL) selection of the SCell; non-NUL selection of the SCell; uplink retransmission determination of the SCell; beam selection of the SCell; and RO access to the SCell.

[0037] In the above embodiments, the measurement results of the reference signal can be used for SCell carrier management, SCell auxiliary uplink SUL selection, SCell non-auxiliary uplink NUL selection, SCell uplink retransmission determination, SCell beam selection and / or access SCell RO. The measurement results can be applied to different scenarios.

[0038] In conjunction with some embodiments of the first aspect, in some embodiments, the path loss of the terminal in the second cell is used to determine the path loss of the terminal in the SCell.

[0039] In the above embodiments, the terminal can explicitly determine the path loss of the terminal in the SCell based on the path loss in the second cell.

[0040] In conjunction with some embodiments of the first aspect, in some embodiments, the path loss is determined based on an offset value, a transmit power, and a receive power; wherein the offset value is used to adjust the path loss of the SCell, the transmit power is the power of transmitting an SSB on a reference carrier, and the receive power is the power of receiving an SSB on a reference carrier.

[0041] In the above embodiments, the path loss can be clearly determined based on the offset value, transmit power, and receive power, so that the path loss is adapted to the SSB's receive power, transmit power, and offset value, making the path loss more accurate.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments the method further includes: sending third information to the terminal; wherein the third information is used to indicate an offset value.

[0043] In the above embodiments, the network device can indicate the offset value through third information, so that the terminal can determine the path loss based on the offset value based on the network's indication.

[0044] In conjunction with some embodiments of the first aspect, in some embodiments, the offset value is associated with at least one of the following: the operating frequency of the terminal; and the terminal's mobility information, which is used to indicate the mobility of the terminal.

[0045] In the above embodiments, the offset value can be adapted to the terminal's operating frequency and the terminal's mobility.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, the number of offset values ​​is multiple, and different offset values ​​are associated with different bandwidth portions (BWP).

[0047] In the above embodiments, the third information can indicate multiple offset values, and the offset values ​​can be associated with the BWP, or associated with the BWP and the narrowband included in the BWP, making the usage more flexible.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, when each BWP includes a narrowband, the third information is used to indicate multiple offset values ​​and the BWP and narrowband associated with each offset value; when each BWP does not include a narrowband, the third information is used to indicate multiple offset values ​​and the BWP associated with each offset value.

[0049] In the above embodiments, the content indicated by the third information may be different depending on whether the BWP includes or does not include the narrowband. Thus, the third information can be adapted to whether the BWP includes or does not include the narrowband, making the implementation more flexible.

[0050] Secondly, embodiments of this disclosure propose a communication method, which is executed by a terminal. The method includes: receiving first information sent by a network device; wherein the first information is used to indicate that the SCell is a first type of SCell, the first type of SCell is configured with a UL carrier and the first type of SCell cell is not configured with a DL carrier, or the first type of SCell is configured with both a UL carrier and a DL carrier, and the number of UL carriers is greater than or equal to the number of DL carriers.

[0051] In conjunction with the embodiments of the second aspect, in some embodiments, the first information includes one of the following: a first identifier; configuration information, in which the configuration information indicates the configuration of the UL carrier when the first type of SCell is configured with a UL carrier and the first type of SCell cell is not configured with a DL carrier, or in which the configuration information indicates the configuration of the UL carrier and the configuration of the DL carrier when the first type of SCell is configured with both UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers.

[0052] In conjunction with the embodiments of the second aspect, in some embodiments, when the first type of SCell is configured with a UL carrier and the first type of SCell cell is not configured with a DL carrier, the configuration of the UL carrier is indicated by a first signaling or a second signaling, wherein the first signaling is signaling carrying the configuration of the UL carrier and the second signaling is signaling without carrying the configuration of the DL carrier; when the first type of SCell is configured with both UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers, the configuration of the UL carriers and the configuration of the DL carriers are indicated by a third signaling, wherein the third signaling is signaling carrying the configuration of the UL carriers and the configuration of the DL carriers.

[0053] In conjunction with embodiments of the second aspect, in some embodiments, the method further includes: receiving second information sent by a network device; wherein the second information includes at least one of the following: a second identifier, the second identifier being used to indicate a first cell, the first cell being a cell that schedules SCells via carrier; an index of the SCell, the SCell being scheduled by the first cell according to the index; a third identifier, the third identifier being used to indicate a second cell, the second cell being a cell associated with the SCell, the second cell being used to assist the SCell in providing services; and configuration information of a reference signal, the reference signal being a signal transmitted in the second cell, the reference signal being used to assist the SCell in providing services.

[0054] In conjunction with embodiments of the second aspect, in some embodiments, the reference signal includes CSI-RS and / or SSB.

[0055] In conjunction with embodiments of the second aspect, in some embodiments, the reference signal is associated with the RO used for accessing the SCell.

[0056] In conjunction with the embodiments of the second aspect, in some embodiments, the SFN and / or time slot of the second cell are used to determine the resources used by the terminal in the SCell, including one or more of CG resources and DG resources;

[0057] In conjunction with embodiments of the second aspect, in some embodiments, the measurement results of the reference signal are used for at least one of the following: carrier management of the SCell; auxiliary uplink SUL selection of the SCell; non-auxiliary uplink NUL selection of the SCell; uplink retransmission determination of the SCell; beam selection of the SCell; and RO access to the SCell.

[0058] In conjunction with the embodiments of the second aspect, in some embodiments, the path loss of the terminal in the second cell is used to determine the path loss of the terminal in the SCell.

[0059] In conjunction with embodiments of the second aspect, in some embodiments, the method includes: determining path loss based on transmit power, receive power, and offset value; wherein the offset value is used to adjust the path loss of the SCell, the transmit power is the power of transmitting an SSB on a reference carrier, and the receive power is the power of receiving an SSB on a reference carrier.

[0060] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes: receiving third information sent by a network device; wherein the third information is used to indicate an offset value.

[0061] In conjunction with embodiments of the second aspect, in some embodiments, the offset value is associated with at least one of the following: the operating frequency of the terminal; and the terminal's mobility information, which is used to indicate the mobility of the terminal.

[0062] In conjunction with the embodiments of the second aspect, in some embodiments, the number of offset values ​​is multiple, and different offset values ​​are associated with different BWPs.

[0063] In conjunction with embodiments of the second aspect, in some embodiments, when each BWP includes a narrowband, the third information is used to indicate multiple offset values ​​and the BWP and narrowband associated with each offset value; when each BWP does not include a narrowband, the third information is used to indicate multiple offset values ​​and the BWP associated with each offset value.

[0064] Thirdly, this disclosure provides a terminal, including: a transceiver module configured to: send first information to the terminal; wherein the first information is used to indicate that the SCell is a first type of SCell, the first type of SCell is configured with a UL carrier and the first type of SCell cell is not configured with a DL carrier, or the first type of SCell is configured with both a UL carrier and a DL carrier, and the number of UL carriers is greater than or equal to the number of DL carriers.

[0065] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module is further configured such that: the first information includes one of the following: a first identifier; configuration information, in the case where the first type of SCell is configured with a UL carrier and the first type of SCell cell is not configured with a DL carrier, the configuration information indicates the configuration of the UL carrier, or in the case where the first type of SCell is configured with both UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers, the configuration information indicates the configuration of both the UL carriers and the DL carriers.

[0066] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module is further configured to: when a first type of SCell is configured with a UL carrier and the first type of SCell cell is not configured with a DL carrier, indicate the configuration of the UL carrier through a first signaling or a second signaling, wherein the first signaling is signaling carrying the configuration of the UL carrier and the second signaling is signaling without carrying the configuration of the DL carrier; when a first type of SCell is configured with both UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers, indicate the configuration of the UL carriers and the configuration of the DL carriers through a third signaling, wherein the third signaling is signaling carrying the configuration of the UL carriers and the configuration of the DL carriers.

[0067] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module is further configured to: send second information to the terminal; wherein the second information includes at least one of the following: a second identifier, the second identifier being used to indicate a first cell, the first cell being a cell that schedules SCells via carrier; an index of the SCell, the SCell being scheduled by the first cell according to the index; a third identifier, the third identifier being used to indicate a second cell, the second cell being a cell associated with the SCell, the second cell being used to assist the SCell in providing services; and configuration information of a reference signal, the reference signal being a signal transmitted in the second cell, the reference signal being used to assist the SCell in providing services.

[0068] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module is further configured such that the reference signal includes CSI-RS and / or SSB.

[0069] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module is further configured such that the reference signal is associated with the RO used for accessing the SCell.

[0070] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module is further configured such that the SFN and / or time slot of the second cell are used to determine the resources used by the terminal in the SCell, including one or more of CG resources and DG resources.

[0071] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module is further configured to use the measurement results of the reference signal for at least one of the following: carrier management of the SCell; auxiliary uplink SUL selection of the SCell; non-auxiliary uplink NUL selection of the SCell; uplink retransmission determination of the SCell; beam selection of the SCell; and RO access to the SCell.

[0072] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module is further configured to: use the path loss of the terminal in the second cell to determine the path loss of the terminal in the SCell.

[0073] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module is further configured such that: the path loss is determined based on an offset value, a transmit power, and a receive power; wherein the offset value is used to adjust the path loss of the SCell, the transmit power is the power of transmitting an SSB on a reference carrier, and the receive power is the power of receiving an SSB on a reference carrier.

[0074] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module is further configured to: send third information to the terminal; wherein the third information is used to indicate an offset value.

[0075] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module is further configured such that the offset value is associated with at least one of the following: the operating frequency of the terminal; or the terminal's mobility information, which is used to indicate the mobility of the terminal.

[0076] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module is further configured such that the number of offset values ​​is multiple, and different offset values ​​are associated with different BWPs.

[0077] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module is further configured to: when each BWP includes a narrowband, the third information is used to indicate multiple offset values ​​and the BWP and narrowband associated with each offset value; when each BWP does not include a narrowband, the third information is used to indicate multiple offset values ​​and the BWP associated with each offset value.

[0078] Fourthly, embodiments of this disclosure provide a terminal, including: a transceiver module configured to: receive first information sent by a network device; wherein the first information is used to indicate that the SCell is a first type of SCell, the first type of SCell is configured with a UL carrier and the first type of SCell cell is not configured with a DL carrier, or the first type of SCell is configured with both a UL carrier and a DL carrier, and the number of UL carriers is greater than or equal to the number of DL carriers.

[0079] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured such that: the first information includes one of the following: a first identifier; configuration information, in the case where a first type of SCell is configured with a UL carrier and the first type of SCell cell is not configured with a DL carrier, the configuration information indicates the configuration of the UL carrier, or in the case where a first type of SCell is configured with both a UL carrier and a DL carrier, and the number of UL carriers is greater than or equal to the number of DL carriers, the configuration information indicates the configuration of both the UL carrier and the DL carrier.

[0080] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured to: when a first type of SCell is configured with a UL carrier and the first type of SCell cell is not configured with a DL carrier, indicate the configuration of the UL carrier through a first signaling or a second signaling, wherein the first signaling is signaling carrying the configuration of the UL carrier and the second signaling is signaling without carrying the configuration of the DL carrier; when a first type of SCell is configured with both UL and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers, indicate the configuration of the UL carrier and the configuration of the DL carrier through a third signaling, wherein the third signaling is signaling carrying the configuration of the UL carrier and the configuration of the DL carrier.

[0081] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured such that the method further includes: sending second information to the terminal; wherein the second information includes at least one of the following: a second identifier, the second identifier being used to indicate a first cell, the first cell being a cell that schedules SCells via carrier; an index of the SCell, the SCell being scheduled by the first cell according to the index; a third identifier, the third identifier being used to indicate a second cell, the second cell being a cell associated with the SCell, the second cell being used to assist the SCell in providing services; and configuration information of a reference signal, the reference signal being a signal transmitted in the second cell, the reference signal being used to assist the SCell in providing services.

[0082] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured such that the reference signal includes CSI-RS and / or SSB.

[0083] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured such that the reference signal is associated with the RO used for accessing the SCell.

[0084] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured to: use the SFN and / or time slot of the second cell to determine the resources used by the terminal in the SCell, the resources including one or more of CG resources and DG resources;

[0085] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured to use the measurement results of the reference signal for at least one of the following: carrier management of the SCell; auxiliary uplink SUL selection of the SCell; non-auxiliary uplink NUL selection of the SCell; uplink retransmission determination of the SCell; beam selection of the SCell; and access RO of the SCell.

[0086] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured to use the path loss of the terminal in the second cell to determine the path loss of the terminal in the SCell.

[0087] In conjunction with some embodiments of the fourth aspect, in some embodiments, the terminal includes a processing module configured to: determine path loss based on transmit power, receive power, and offset value; wherein the offset value is used to adjust the path loss of the SCell, the transmit power is the power of transmitting an SSB on a reference carrier, and the receive power is the power of receiving an SSB on a reference carrier.

[0088] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured to: receive third information sent by the network device; wherein the third information is used to indicate an offset value.

[0089] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured such that the offset value is associated with at least one of the following: the operating frequency of the terminal; and the terminal's mobility information, which is used to indicate the mobility of the terminal.

[0090] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured such that the number of offset values ​​is multiple, and different offset values ​​are associated with different BWPs.

[0091] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured to: when each BWP includes a narrowband, use third information to indicate multiple offset values ​​and the BWP and narrowband associated with each offset value; and when each BWP does not include a narrowband, use third information to indicate multiple offset values ​​and the BWP associated with each offset value.

[0092] Fifthly, embodiments of this disclosure provide a communication device including one or more processors; wherein the communication device is used to perform the methods described in the embodiments or optional implementations of the first and / or second aspects.

[0093] In a sixth aspect, embodiments of this disclosure provide a communication device for performing the method as described in optional implementations of the first and / or second aspects.

[0094] In a seventh aspect, embodiments of this disclosure provide a communication system including a network device and a terminal, wherein the network device is used to perform the method described in the optional implementation of the first aspect, and the terminal is used to perform the method described in the optional implementation of the second aspect.

[0095] Eighthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method as described in the optional implementations of the first and / or second aspects.

[0096] In a ninth aspect, embodiments of this disclosure provide a program product comprising a computer program or instructions that, when executed by a processor, implement the method as described in the optional implementations of the first and / or second aspects.

[0097] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in optional implementations of the first and / or second aspects.

[0098] Eleventhly, embodiments of this disclosure provide a chip or chip system including processing circuitry configured to perform the methods described in alternative implementations of the first and / or second aspects above.

[0099] It is understood that the aforementioned network devices, terminals, communication devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods provided in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0100] This disclosure provides a communication method, network device, terminal, communication equipment, communication system, program product, and storage medium. In some embodiments, terms such as communication method and information processing method may be used interchangeably.

[0101] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular 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 particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0102] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0103] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0104] In the embodiments disclosed herein, "multiple" refers to two or more.

[0105] In some embodiments, the terms “at least one of A or B, at least one of A and B”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0106] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0107] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.

[0108] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0109] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0110] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0111] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0112] In some embodiments, the terms “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 lower than,” and “above” can be used interchangeably, as can the terms “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”.

[0113] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0114] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0115] 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," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0116] 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", and "client" can be used interchangeably.

[0117] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0118] 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, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0119] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0120] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0121] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0122] Figure 1 is a schematic diagram of the architecture of a communication system 100 according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 may include: a terminal 101 and a network device 102.

[0123] In some embodiments, network device 102 may include at least one of an access network device and a core network device.

[0124] In some embodiments, terminal 101 includes, for example, at least one of the following: mobile phone, wearable device, Internet of Things (IoT) device or terminal, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home, but is not limited thereto.

[0125] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved Node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a wireless fidelity (WiFi) system.

[0126] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0127] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0128] In some embodiments, the core network equipment may be a single device, a first network element, or a second network element, or multiple devices or a group of devices, respectively including all or part of the aforementioned first network element and / or second network element. Both the first network element and / or the second network element may be virtual or physical. The core network may include, for example, at least one of the following: evolved packet core (EPC), 5G core network (5GCN), next-generation core (NGC), and 6G core network (6GCN).

[0129] In some embodiments, the first network element may be a sensing function control (SF-C) node, but is not limited thereto.

[0130] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions provided in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in this disclosure are also applicable to similar technical problems.

[0131] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. ​​The number and form of each main body are arbitrary. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0132] The embodiments disclosed herein 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), 6th Generation Mobile Communication System (6G), 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), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, ultra-wideband (UWB), Bluetooth (a 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, systems utilizing other communication methods, and next-generation systems built upon them. Furthermore, multiple systems can be combined (e.g., LTE or LTE-A combined with 5G, 5G combined with 5G, 5G combined with 6G, etc.) for application.

[0133] In some embodiments, in 4G or 5G carrier aggregation, the carriers participating in carrier aggregation are configured at the cell level, divided into primary cells (PCells) and SCells. The PCell is responsible for receiving system broadcast information, paging, and radio resource control (RRC) signaling connection management and mobility, while the system broadcast information on the SCell is configured through RRC dedicated signaling, and the SCell is responsible for data transmission and reception.

[0134] In some embodiments, each cell participating in carrier aggregation can have a physical downlink control channel (PDCCH) for self-scheduling, or can perform cross-carrier scheduling through RRC configuration.

[0135] In some embodiments, hybrid automatic repeat request (HARQ) feedback and channel state information (CSI) reporting for all carriers within the PUCCH set can be implemented on the PCell and at most one SCell via the physical uplink control channel (PUCCH).

[0136] In some embodiments, when configuring SCells, each SCell is associated with an SCell index, using the Cell as the basic unit. Furthermore, when configuring DL carrier configuration information, UL carrier configuration information can be nested. Therefore, the SCell currently configuring carrier aggregation can configure only DL carriers, or both DL and UL carriers simultaneously, resulting in a number of DL carriers that is always greater than the number of UL carriers. Due to the diversity of services, some services have UL throughput exceeding DL throughput, and the current carrier aggregation configuration method cannot meet the diverse service requirements. Moreover, there is a one-to-one association between DL and UL carriers, making carrier management inflexible and unable to meet future service demands for high UL data throughput.

[0137] In some embodiments, during mobility operations, due to the specific functional responsibilities of PCel1, any change in PCel will trigger a handover process, even if the target cell is a current SCell. Handover involves key changes leading to Media Access Control (MAC) resets, Packet Data Convergence Protocol (PDCP) or Radio Link Control (RLC) reconstruction, resulting in service interruptions and packet loss, impacting service performance. Simultaneously, a radio link failure (RLF) in PCel, regardless of whether the SCell experiences an RLF, will trigger a PCel RLF, thereby triggering RRC connection reconstruction, which will also lead to service interruptions and packet loss, impacting service performance.

[0138] In some embodiments, traditional mobile communication system designs are based on the assumption that DL (Layered Continuous) traffic is the primary service. However, future 6G networks present use cases with high uplink traffic loads, including remote driving, machine vision, and factory video surveillance. In these use cases, UL (Ultra-Layered) traffic will be significantly higher due to limited DL data traffic. In PCells, time division duplex (TDD) configurations are typically designed to support more DL slots, which is not UL-friendly. Therefore, synchronization signal / pbch block-less (SSB-less) SCells can be primarily used to support the additional UL traffic in such scenarios with high UL usage. DL services and network signaling will be offloaded to PCells or other SCells. Since only UL traffic can be scheduled in SSB-less SCells, from an energy-saving perspective, the network can correspondingly shut down the transmitters in SSB-less SCells. Therefore, significant network energy-saving gains are foreseeable.

[0139] In the embodiments disclosed herein, how to flexibly apply UP carriers and DL carriers to a cell is an issue that needs to be considered.

[0140] In some embodiments, the SCell in this disclosure may be the SCell of the first base station, and the SCell may be a UL only SCell.

[0141] In some embodiments, the serving cell of the terminal may be a cell of a second base station. This serving cell may be a PCell associated with the SCell, and the SCell and PCell jointly provide services to the terminal. The network device in this disclosure may be, but is not limited to, a second base station, and may also be other network devices.

[0142] Figure 2A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2A, the embodiment of the present disclosure relates to a communication method used in a communication system 100, the method including:

[0143] Step S2101: The network device sends the first information to the terminal.

[0144] In some embodiments, the terminal receives first information sent by the network device.

[0145] In some embodiments, the network device sends an RRC message to the terminal, the RRC message carrying first information.

[0146] In some embodiments, the first information is indication information, configuration information, or cell information. Of course, the name of the first information can also be other, and this disclosure does not specifically limit it.

[0147] In some embodiments, before the network device sends the first information to the terminal, the network device performs one of the following: configures a UL carrier for the SCell but does not configure a DL carrier for the SCell; configures a UL carrier and a DL carrier for the SCell, wherein the number of UL carriers is greater than or equal to the number of DL carriers.

[0148] In some embodiments, the network device configures a UL carrier for the SCell based on the uplink and downlink traffic of the terminal, but does not configure a DL carrier for the SCell.

[0149] In some embodiments, when the uplink traffic of the terminal is greater than or equal to the downlink traffic, the network device configures a UL carrier for the SCell but does not configure a DL carrier for the SCell.

[0150] In some embodiments, the network device configures UL carriers and DL carriers for SCell based on the uplink and downlink traffic of the terminal, wherein the number of UL carriers is greater than or equal to the number of DL carriers.

[0151] In some embodiments, when the uplink traffic of the terminal is greater than or equal to the downlink traffic, the network device configures UL carriers and DL carriers for the SCell, and the number of UL carriers is greater than or equal to the number of DL carriers.

[0152] In some embodiments, when the network device configures a UL carrier for the SCell but not a DL carrier for the SCell, the network device sends first information to the terminal.

[0153] In some embodiments, when the network device configures UL carriers and DL carriers for SCell and the number of UL carriers is greater than or equal to the number of DL carriers, the network device sends first information to the terminal.

[0154] In some embodiments, when the network device configures a UL carrier for the SCell but not a DL carrier, the first information sent by the network device to the terminal is used to indicate that the SCell is a first type SCell. The first type SCell is configured with a UL carrier but not with a DL carrier. The first type SCell can be a UL only SCell.

[0155] In some embodiments, when the network device configures UL carriers and DL carriers for the SCell and the number of UL carriers is greater than or equal to the number of DL carriers, the first information sent by the network device to the terminal is used to indicate that the SCell is a first type of SCell, and the first type of SCell is configured with UL carriers and DL carriers and the number of UL carriers is greater than or equal to the number of DL carriers.

[0156] In some embodiments, when the network device configures a UL carrier for the SCell but not a DL carrier, the first information sent by the network device to the terminal is a first identifier. The first identifier indicates that the SCell is a first-type SCell, which is configured with a UL carrier but not with a DL carrier. For example, the first identifier is a flag, and when the flag value is "1", it indicates that the SCell is a first-type SCell.

[0157] In some embodiments, when the network device configures UL carriers and DL carriers for the SCell and the number of UL carriers is greater than or equal to the number of DL carriers, the first information sent by the network device to the terminal is a first identifier. The first identifier is used to indicate that the SCell is a first type of SCell, and the first type of SCell is configured with UL carriers and DL carriers and the number of UL carriers is greater than or equal to the number of DL carriers.

[0158] In some embodiments, when the network device configures a UL carrier for the SCell but not a DL carrier for the SCell, the first information sent by the network device to the terminal is configuration information, which indicates the configuration of the UL carrier.

[0159] In some embodiments, when the network device configures UL carriers and DL carriers for the SCell and the number of UL carriers is greater than or equal to the number of DL carriers, the first information sent by the network device to the terminal is configuration information, which indicates the configuration of UL carriers and the configuration of DL carriers.

[0160] In some embodiments, when a first type of SCell is configured with a UL carrier but the first type of SCell cell is not configured with a DL carrier, the configuration of the UL carrier is indicated by a first signaling message, which is a signaling message carrying the configuration of the UL carrier. The first signaling message can be RRC signaling. Here, the first signaling message can also be referred to as explicit signaling.

[0161] In some embodiments, when a first-type SCell is configured with a UL carrier and the first-type SCell cell is not configured with a DL carrier, the configuration of the UL carrier is indicated by a second signaling, which is signaling that does not carry the configuration of the DL carrier. The second signaling can be RRC signaling. Here, the second signaling can also be referred to as implicit signaling.

[0162] In some embodiments, when a first type of SCell is configured with UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers, the configuration of the UL carriers and DL carriers is indicated by a third signaling. This third signaling is signaling carrying the configuration of the UL carriers and DL carriers. The third signaling can be RRC signaling. Here, the third signaling can also be referred to as explicit signaling.

[0163] In step S2102, the network device sends the second information to the terminal.

[0164] In some embodiments, the terminal receives second information sent by the network device.

[0165] In some embodiments, the network device sends an RRC message to the terminal, the RRC message carrying second information.

[0166] In some embodiments, the second information may be instruction information or reference information. Of course, the name of the first information may also be other, and this disclosure does not specifically limit it.

[0167] In some embodiments, the second information includes at least one of the configuration information of the second identifier, the third identifier, and the reference signal.

[0168] In some embodiments, the second identifier is used to indicate a first cell, which is a cell that schedules the SCell via a carrier. Here, the first cell may also be referred to as a serving cell or a scheduling serving cell, and the second identifier may also be referred to as a serving cell identifier, but is not limited thereto. Here, the serving cell or scheduling serving cell may be a cell that transmits random access messages for accessing the SCell via a DL carrier.

[0169] In some embodiments, SCells are scheduled by a first cell based on an index. Here, different indices correspond to different SCells, and a first cell can schedule multiple SCells.

[0170] In some embodiments, the third identifier is used to indicate a second cell, which is a cell associated with the SCell and is used to assist the SCell in providing services. Here, the second cell may also be referred to as a reference cell.

[0171] In some embodiments, the reference signal is a signal transmitted in the second cell, used to assist the SCell in providing services. The reference signal may include CSI-RS and / or SSB.

[0172] In some embodiments, the signal coverage of the second cell is the same as that of the SCell.

[0173] In some embodiments, the signal coverage of the second cell differs from that of the SCell.

[0174] In some embodiments, when the second information is a second identifier, after the network device sends the second information to the terminal, the terminal can receive a random access message for accessing the SCell on the DL carrier of the first cell indicated by the second identifier. Here, the random access message can be a 2-step random access message or a 4-step random access message. For example, the random access message can be MSG B in 2-step random access and MSG2 in 4-step random access, etc.

[0175] In some embodiments, when the second information is a third identifier, after the network device sends the second information to the terminal, the terminal can determine the path loss in the SCell based on the RSRP of the reference signal in the second cell indicated by the third identifier. For example, the path loss of the SCell can be determined based on the difference between the transmit power of the reference signal in the second cell and the detected RSRP.

[0176] In some embodiments, when the second information is a third identifier, after the network device sends the second information to the terminal, the terminal can determine the resources used by the terminal in the SCell based on the SFN of the second cell indicated by the third identifier. The resources include one or more of CG resources and DG resources.

[0177] In some embodiments, when the second information is a third identifier, after the network device sends the second information to the terminal, the terminal can determine the resources used by the terminal in the SCell based on the time slot of the second cell indicated by the third identifier. The resources include one or more of CG resources and DG resources.

[0178] In some embodiments, the resources include time-domain resources and / or frequency-domain resources.

[0179] In some embodiments, when the second information is a third identifier, after the network device sends the second information to the terminal, the terminal can determine the path loss of the terminal in the SCell based on the path loss of the second cell indicated by the third identifier. For example, the path loss of the second cell can be directly used as the path loss in the SCell, or the path loss of the second cell can be increased or decreased by an offset value and then used as the path loss in the SCell.

[0180] In some embodiments, when the second information includes a third identifier, after the network device sends the second information to the terminal, the terminal determines the path loss of the SCell based on the offset value, the transmit power of the SSB in the second cell indicated by the third identifier, and the receive power of the SSB in the second cell indicated by the third identifier.

[0181] In some embodiments, when the second information is configuration information of a reference signal, after receiving the third information sent by the network device, the terminal determines the RO for accessing the SCell based on the reference signal, and the reference signal is associated with the RO for accessing the SCell.

[0182] In some embodiments, when the second information is configuration information for a reference signal, after receiving the third information sent by the network device, the terminal performs carrier management of the SCell based on the measurement results of the reference signal. Carrier management may include adding a carrier, deleting a carrier, modifying a carrier, activating a carrier, or deactivating a carrier. For example, when the RSRP value indicated by the measurement results of the reference signal transmitted on the first carrier is less than the RSRP threshold (e.g., 10 watts), the terminal may delete the first carrier.

[0183] In some embodiments, when the second information is configuration information for a reference signal, after receiving the third information sent by the network device, the terminal performs SUL selection for the SCell based on the measurement result of the reference signal. Here, different measurement results correspond to different SULs. For example, if the measurement result is a first result, the terminal selects the first SUL; if the measurement result is a second result, the terminal selects the second SUL.

[0184] In some embodiments, when the second information is configuration information for a reference signal, after receiving the third information sent by the network device, the terminal performs NUL selection for the SCell based on the measurement result of the reference signal. Here, different measurement results correspond to different NULs. For example, if the measurement result is a first result, the terminal selects the first NUL; if the measurement result is a second result, the terminal selects the second NUL.

[0185] In some embodiments, when the second information is configuration information for a reference signal, after receiving the third information sent by the network device, the terminal performs an uplink repetition determination (UL repetition determination) of the SCell based on the measurement result of the reference signal. For example, when the RSRP value indicated by the measurement result is less than a threshold (e.g., 10 watts), the terminal determines to perform an uplink repetition.

[0186] In some embodiments, when the second information is configuration information for a reference signal, after receiving the third information sent by the network device, the terminal performs beam selection for the SCell based on the measurement results of the reference signal. For example, the reference signal measurement can be performed for different beams to obtain measurement results, and the terminal will determine the beam corresponding to the measurement results within a predetermined range as the selected beam.

[0187] In some embodiments, when the second information is configuration information for a reference signal, after receiving the third information sent by the network device, the terminal determines the RO (Redirect Origin) for accessing the SCell based on the measurement result of the reference signal. Here, different measurement results correspond to different ROs. For example, if the measurement result is a first measurement result, the terminal determines the RO for accessing the SCell as the first RO; if the measurement result is a second measurement result, the terminal determines the RO for accessing the SCell as the second RO.

[0188] In the above embodiments, the terminal can correct the measurement results based on the correction value before applying the measurement results.

[0189] In some embodiments, the measurement result may be the result obtained by performing a radio resource measurement (RRM).

[0190] In step S2103, the network device sends third information to the terminal.

[0191] In some embodiments, the terminal receives third information sent by the network device.

[0192] In some embodiments, the third information may be parameter information or indication information. Of course, the name of the first information may also be other, and this disclosure does not specifically limit it.

[0193] In some embodiments, the third information is used to indicate an offset value, which is used to adjust the path loss of the SCell.

[0194] In some embodiments, the offset value may be statically configured to the terminal. For example, the network device sends an RRC message to the terminal, and the RRC message carries third-party information.

[0195] In some embodiments, the offset value can be dynamically configured to the terminal. For example, the network device sends downlink control information (DCI) to the terminal, and the DCI carries third information.

[0196] In some embodiments, the offset value is associated with at least one of the following: the operating frequency of the terminal; and the terminal's mobility information, which indicates the terminal's mobility. For example, different operating frequencies correspond to different offset values, and different mobility levels correspond to different offset values.

[0197] In some embodiments, when the offset value is associated with the operating frequency of the terminal, the network device determines the offset value based on the operating frequency of the terminal, and the number of offset values ​​determined by the terminal can be one or more.

[0198] In some embodiments, when the offset value is associated with the terminal's mobility information, the network device determines the offset value based on the terminal's mobility information, and the number of offset values ​​determined by the terminal can be one or more.

[0199] In some embodiments, when the number of offset values ​​determined by the network device is a single value, the third information sent by the network device to the terminal is used to indicate the offset value, which is associated with the bandwidth portion (BWP) configured for the terminal.

[0200] In some embodiments, when the number of offset values ​​determined by the network device is a single value, the third information sent by the network device to the terminal is used to indicate the BWP configured for the terminal and the offset value, the offset value being associated with the BWP configured for the terminal.

[0201] In some embodiments, when the number of offset values ​​determined by the network device is multiple, the number of offset values ​​indicated by the third information sent by the network device to the terminal is also multiple, with different offset values ​​associated with different BWPs, each BWP including a narrowband. Here, when the BWP includes a narrowband, different narrowbands are associated with different numbers.

[0202] In some embodiments, when the number of offset values ​​determined by the network device is multiple, the number of offset values ​​indicated by the third information sent by the network device to the terminal is multiple, and different offset values ​​are associated with different BWPs, each BWP not including narrowband.

[0203] In some embodiments, where the number of offset values ​​determined by the network device is multiple and each BWP includes a narrowband, the third information is used to indicate the multiple offset values ​​and the BWP and narrowband associated with each offset value.

[0204] In some embodiments, where the number of offset values ​​determined by the network device is multiple and each BWP does not include a narrowband, the third information is used to indicate the multiple offset values ​​and the BWP associated with each offset value.

[0205] In some embodiments, each narrowband corresponds to a number, and different narrowbands have different numbers.

[0206] Step S2104: The terminal performs the operation.

[0207] In some embodiments, the terminal performs the following operation: the terminal receives a random access message.

[0208] In some embodiments, when the terminal receives first information from the network device indicating that the SCell is a first-type SCell and the first-type SCell is configured with a UL carrier and not configured with a DL carrier, the terminal can receive a random access message for accessing the SCell on the DL carrier of the reference cell. The reference cell can be a PScell.

[0209] In some embodiments, when the terminal receives first information from the network device indicating that the SCell is a first-type SCell and the first-type SCell is configured with a UL carrier and not configured with a DL carrier, the terminal can receive a random access message for accessing the SCell on a reference carrier. The reference cell can be a PScell. The reference carrier can be a carrier of the reference cell.

[0210] In some embodiments, when a terminal receives first information from a network device indicating that the SCell is a first-type SCell and that the first-type SCell is configured with both a UL carrier and a DL carrier, the terminal can receive a random access message for accessing the SCell on the DL carrier of the SCell. The reference cell can be a PScell.

[0211] In some embodiments, the terminal performs the following operation: the terminal determines the SCell type.

[0212] In some embodiments, when the terminal receives first information sent by the network device including a first identifier, the terminal determines that the first identifier is used to indicate that the SCell is a first type of SCell, the terminal determines that the SCell is configured with a UL carrier and the SCell cell is not configured with a DL carrier, or the terminal determines that the SCell is configured with both UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers.

[0213] In some embodiments, when the terminal receives configuration information sent by the network device, the terminal determines that the configuration information is used to indicate that the SCell is a first type of SCell, the terminal determines that the SCell is configured with a UL carrier and the SCell cell is not configured with a DL carrier, or the terminal determines that the SCell is configured with both UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers.

[0214] In some embodiments, the terminal performs the following operation: the terminal determines the carrier configuration.

[0215] In some embodiments, when the terminal receives configuration information, the terminal determines the configuration of the UL carrier based on the configuration information.

[0216] In some embodiments, when the terminal receives configuration information, the terminal determines the configuration of the UL carrier and the configuration of the DL carrier based on the configuration information.

[0217] In some embodiments, the terminal performs the following operation: the terminal determines the cell to schedule the SCell.

[0218] In some embodiments, when the terminal receives second information from the network device including a second identifier, the terminal determines the cell that the SCell is scheduled via carrier as the first cell.

[0219] In some embodiments, the terminal performs the following operation: the terminal determines the index of the first cell scheduling SCell.

[0220] In some embodiments, when the terminal receives second information from the network device that includes the index of the SCell, the terminal determines that the first cell schedules the SCell according to the index.

[0221] In some embodiments, the terminal performs the following operation: the terminal determines a second cell that provides services to SCell.

[0222] In some embodiments, if the terminal receives second information sent by the network device that includes a third identifier, the terminal determines that the second cell auxiliary SCell indicated by the third identifier provides services.

[0223] In some embodiments, the terminal performs the following operation: the terminal determines the resources to be used in the SCell.

[0224] In some embodiments, when the terminal receives second information sent by the network device that includes a third identifier, the terminal determines the resources used by the terminal in the SCell based on the SFN of the second cell indicated by the third identifier. The resources include one or more of CG resources and DG resources.

[0225] In some embodiments, when the terminal receives second information sent by the network device that includes a third identifier, the terminal determines the resources used by the terminal in the SCell based on the time slot indicated by the third identifier. The resources include one or more of CG resources and DG resources.

[0226] In some embodiments, the terminal performs the following operation: the terminal determines the configuration information of the reference signal.

[0227] In some embodiments, when the terminal receives second information from the network device that includes configuration information of the reference signal, the terminal assists SCell in providing services based on the reference signal.

[0228] In some embodiments, the terminal performs the following operations: based on the measurement results of the reference signal, the terminal performs carrier management of the SCell, SUL selection of the SCell, NUL selection of the SCell, uplink retransmission of the SCell, beam selection of the SCell, and / or determines the RO of the access SCell.

[0229] In some embodiments, when the terminal receives second information from the network device including configuration information for a reference signal, the terminal performs carrier management of the SCell based on the measurement results of the reference signal. Carrier management may include adding a carrier, deleting a carrier, modifying a carrier, activating a carrier, or deactivating a carrier. For example, when the RSRP value indicated by the measurement results of the reference signal transmitted on the first carrier is less than the RSRP threshold (e.g., 10 watts), the first carrier may be deleted.

[0230] In some embodiments, when the terminal receives second information from the network device including configuration information of the reference signal, the terminal performs SUL selection for the SCell based on the measurement result of the reference signal. Different measurement results correspond to different SULs. For example, if the measurement result is a first result, the terminal selects the first SUL; if the measurement result is a second result, the terminal selects the second SUL.

[0231] In some embodiments, when the terminal receives second information from the network device including configuration information of the reference signal, the terminal performs NUL selection for the SCell based on the measurement result of the reference signal. Here, different measurement results correspond to different NULs. For example, if the measurement result is a first result, the terminal selects the first NUL; if the measurement result is a second result, the terminal selects the second NUL.

[0232] In some embodiments, when the terminal receives second information from the network device that includes configuration information for the reference signal, the terminal performs uplink retransmission of the SCell based on the measurement results of the reference signal. For example, when the RSRP value indicated by the measurement results is less than a threshold (e.g., 10 watts), the terminal determines to perform uplink retransmission.

[0233] In some embodiments, when the terminal receives second information from the network device that includes configuration information for a reference signal, the terminal performs beam selection for the SCell based on the measurement results of the reference signal. For example, the reference signal measurement can be performed for different beams to obtain measurement results, and the terminal will determine the beam corresponding to the measurement results within a predetermined range as the selected beam.

[0234] In some embodiments, when the terminal receives second information from the network device including configuration information for a reference signal, the terminal determines the RO for accessing the SCell based on the measurement result of the reference signal. Here, the reference signal is associated with the RO for accessing the SCell. Different measurement results correspond to different ROs; for example, if the measurement result is a first measurement result, the terminal determines the RO for accessing the SCell as the first RO; if the measurement result is a second measurement result, the terminal determines the RO for accessing the SCell as the second RO.

[0235] In some embodiments, the operation performed by the terminal is: the terminal determines the path loss of the terminal in the SCell.

[0236] In some embodiments, the terminal determines its path loss in the SCell based on the path loss of the terminal in the second cell. Alternatively, the path loss of the second cell indicated by the second information can be directly determined as the path loss in the SCell.

[0237] In some embodiments, the terminal determines the path loss based on an offset value, transmit power, and receive power; wherein the offset value is used to adjust the path loss of the SCell, the transmit power is the power of transmitting an SSB on a reference carrier, and the receive power is the power of receiving an SSB on a reference carrier.

[0238] In some embodiments, the terminal performs the following operation: the terminal determines the offset value to be used.

[0239] In some embodiments, the terminal determines the uplink path loss based on an offset value, transmit power, and receive power; wherein the offset value is used to adjust the path loss of the SCell, the transmit power is the power used to transmit an SSB on the reference carrier, and the receive power is the power used to receive an SSB on the reference carrier. Here, the receive power can be RSRP.

[0240] In some embodiments, the reference carrier is a DL carrier, and the terminal determines the uplink path loss based on the offset value, transmit power, and receive power; wherein, the offset value is used to adjust the path loss of the SCell, the transmit power is the power used to transmit an SSB on the DL carrier, and the receive power is the power used to receive an SSB on the DL carrier. Here, the receive power can be RSRP.

[0241] In some embodiments, the terminal determines the uplink path loss based on an offset value, transmit power, and receive power; wherein the offset value is used to adjust the path loss of the SCell, the transmit power is the power used to transmit an SSB in the first cell, and the receive power is the power used to receive an SSB in the first cell. Here, the receive power can be RSRP.

[0242] In some embodiments, when the number of offset values ​​indicated by the third information sent by the network device is a single value, the offset value used by the terminal is the offset value indicated by the third information.

[0243] In some embodiments, when the number of offset values ​​indicated by the third information sent by the network device is multiple, since different offset values ​​are associated with different BWPs, the offset value used by the terminal can be an offset value determined from the multiple offset values ​​based on the BWP configured for the terminal.

[0244] In some embodiments, when the number of offset values ​​indicated by the third information sent by the network device is multiple, since different offset values ​​are associated with different BWPs and narrowbands, the offset value used by the terminal can be an offset value determined from the multiple offset values ​​based on the BWP and narrowband configured for the terminal.

[0245] In some embodiments, the BWP and / or narrowband used by the terminal may be determined based on protocol specifications, network configuration and / or predefined information, and are not limited herein.

[0246] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0247] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0248] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0249] In some embodiments, terms such as "certain", "preset", "default", "set", "indicated", "a certain", "any", and "first" can be used interchangeably. "Certain A", "preset A", "default A", "set A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0250] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2104. For example, step S2101 can be implemented as a standalone embodiment; step S2102 can be implemented as a standalone embodiment; step S2103 can be implemented as a standalone embodiment; and step S2104 can be implemented as a standalone embodiment. For example, a combination of steps S2101 and S2104 can be implemented as a standalone embodiment, a combination of steps S2102 and S2104 can be implemented as a standalone embodiment, a combination of steps S2103 and S2104 can be implemented as a standalone embodiment, and a combination of steps S2101, S2102, S2103, and S2104 can be implemented as a standalone embodiment.

[0251] In some embodiments, step S2102 may be optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0252] In some embodiments, step S2103 may be optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0253] In the embodiments disclosed herein, each embodiment can be implemented individually or in combination with each other, and the steps in each embodiment can be distinguished by their order.

[0254] Figure 3A is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3A, the present disclosure relates to a communication method, which includes:

[0255] Step S3101: The network device sends the first information to the terminal.

[0256] In step S3102, the terminal receives the first information sent by the network device.

[0257] In some embodiments, the first information is used to indicate that the SCell is a first type of SCell, the first type of SCell is configured with an uplink UL carrier and the first type of SCell cell is not configured with a downlink DL carrier, or the first type of SCell is configured with both UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers.

[0258] In some embodiments, when the network device configures a UL carrier for the SCell but not a DL carrier, the first information sent by the network device to the terminal indicates that the SCell is a first-type SCell, which is configured with a UL carrier but not with a DL carrier. The first-type SCell can be a UL-only SCell. After receiving the first information, the terminal can determine that the SCell is configured with a UL carrier but not with a DL carrier.

[0259] In some embodiments, when the network device configures SCell with UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers, the first information sent by the network device to the terminal indicates that the SCell is a first-type SCell, and the first-type SCell is configured with UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers. After receiving the first information, the terminal can determine that the SCell is configured with both UL carriers and DL carriers.

[0260] In some embodiments, when the network device configures a UL carrier for the SCell but not a DL carrier, the first information sent by the network device to the terminal is a first identifier. The first identifier indicates that the SCell is a first-type SCell, and that the first-type SCell is configured with a UL carrier but not a DL carrier. For example, the first identifier is a flag; when the flag value is "1", it indicates that the SCell is a first-type SCell. After receiving the first information, the terminal can determine that the SCell is configured with a UL carrier but not a DL carrier.

[0261] In some embodiments, when the network device configures UL carriers and DL carriers for the SCell, and the number of UL carriers is greater than or equal to the number of DL carriers, the first information sent by the network device to the terminal is a first identifier. The first identifier is used to indicate that the SCell is a first-type SCell, and the first-type SCell is configured with UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers. After receiving the first information, the terminal can determine that the SCell is configured with both UL carriers and DL carriers.

[0262] In some embodiments, when the network device configures a UL carrier for the SCell but not a DL carrier, the first information sent by the network device to the terminal is configuration information, which indicates the configuration of the UL carrier. After receiving the first information, the terminal can determine that the SCell is configured with a UL carrier and not with a DL carrier.

[0263] In some embodiments, when the network device configures SCell with UL carriers and DL carriers, and the number of UL carriers is greater than or equal to the number of DL carriers, the first information sent by the network device to the terminal is configuration information, which indicates the configuration of UL carriers and DL carriers. After receiving the first information, the terminal can determine that SCell is configured with UL carriers and DL carriers. Optional implementations of steps S3101 and S3102 can be found in the optional implementations of steps S2101 to S2104 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0264] The communication method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3102. For example, step S3101 may be implemented as a standalone embodiment; step S3102 may be implemented as a standalone embodiment. For example, a combination of steps S3101 and S3102 may be implemented as a standalone embodiment.

[0265] In the embodiments disclosed herein, each embodiment can be implemented individually or in combination with each other, and the steps in each embodiment can be distinguished by their order.

[0266] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0267] Figure 3B is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3B, the embodiments of the present disclosure relate to a communication method, which includes:

[0268] Step S3201: The network device sends the second information to the terminal.

[0269] In step S3202, the terminal receives the second information sent by the network device.

[0270] In some embodiments, the second information includes at least one of the configuration information of the second identifier, the third identifier, and the reference signal.

[0271] In some embodiments, when the second information is a second identifier, after the network device sends the second information to the terminal, the terminal can receive a random access message for accessing the SCell on the DL carrier of the first cell indicated by the second identifier.

[0272] In some embodiments, when the second information is a third identifier, after the network device sends the second information to the terminal, the terminal can determine the path loss in the SCell based on the RSRP of the reference signal in the second cell indicated by the third identifier.

[0273] In some embodiments, when the second information is a third identifier, after the network device sends the second information to the terminal, the terminal can determine the resources used by the terminal in the SCell based on the SFN of the second cell indicated by the third identifier. The resources include one or more of CG resources and DG resources.

[0274] In some embodiments, when the second information is a third identifier, after the network device sends the second information to the terminal, the terminal can determine the resources used by the terminal in the SCell based on the time slot of the second cell indicated by the third identifier. The resources include one or more of CG resources and DG resources.

[0275] In some embodiments, the resources include time-domain resources and / or frequency-domain resources.

[0276] In some embodiments, when the second information is a third identifier, after the network device sends the second information to the terminal, the terminal can determine the path loss of the terminal in the SCell based on the path loss of the second cell indicated by the third identifier.

[0277] In some embodiments, when the second information includes a third identifier, after the network device sends the second information to the terminal, the terminal determines the path loss of the SCell based on the offset value, the transmit power of the SSB in the second cell indicated by the third identifier, and the receive power of the SSB in the second cell indicated by the third identifier.

[0278] In some embodiments, when the second information is configuration information of a reference signal, after receiving the third information sent by the network device, the terminal determines the RO for accessing the SCell based on the reference signal, and the reference signal is associated with the RO for accessing the SCell.

[0279] In some embodiments, when the second information is configuration information of a reference signal, after receiving the third information sent by the network device, the terminal performs carrier management of the SCell based on the measurement results of the reference signal.

[0280] In some embodiments, when the second information is configuration information of the reference signal, after receiving the third information sent by the network device, the terminal performs SUL selection of SCell based on the measurement result of the reference signal.

[0281] In some embodiments, when the second information is configuration information of a reference signal, after receiving the third information sent by the network device, the terminal performs NUL selection of SCell based on the measurement result of the reference signal.

[0282] In some embodiments, when the second information is configuration information of the reference signal, after receiving the third information sent by the network device, the terminal performs uplink retransmission determination of SCell based on the measurement result of the reference signal.

[0283] In some embodiments, when the second information is configuration information of a reference signal, after receiving the third information sent by the network device, the terminal performs beam selection of the SCell based on the measurement results of the reference signal.

[0284] In some embodiments, when the second information is configuration information of a reference signal, after receiving the third information sent by the network device, the terminal determines the RO of accessing the SCell based on the measurement result of the reference signal.

[0285] The optional implementations of steps S3201 and S3202 can be found in the optional implementations of steps S2101 to S2104 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0286] The communication method disclosed herein may include at least one of steps S3201 to S3202. For example, step S3201 may be implemented as a standalone embodiment; step S3202 may be implemented as a standalone embodiment. For example, a combination of steps S3201 and S3202 may be implemented as a standalone embodiment.

[0287] In the embodiments disclosed herein, each embodiment can be implemented individually or in combination with each other, and the steps in each embodiment can be distinguished by their order.

[0288] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0289] To better understand the embodiments of this disclosure, the technical solutions of this disclosure are further described below through some exemplary embodiments:

[0290] Example 1, see Figure 4A, which shows a scenario where the reference cell (corresponding to the first cell) and the UL only SCell have the same signal coverage.

[0291] In some embodiments, a UL-only SCell is configured via RRC signaling, where the configuration includes only the UL carrier and no DL carrier. The UL-only SCell can be configured via explicit or implicit signaling. For example, a flag (e.g., 1 bit, corresponding to a first identifier) ​​can be used to indicate that the SCell is a UL-only SCell. Alternatively, it can be indicated implicitly, such as by not configuring a DL carrier, to imply that the SCell is a UL-only SCell.

[0292] In some embodiments, the identifiers of other serving cells (corresponding to the second identifier) ​​for cross-carrier scheduling of the SCell and the index of the SCell in the serving cell of the scheduling carrier are configured through RRC dedicated signaling.

[0293] In some embodiments, the DL timing reference cell (corresponding to the second cell) of the SCell is configured via RRC dedicated signaling. The system frame number SFN, slot, etc. of the DL reference timing cell are also used to determine the time domain location of CG resources, the time domain location of dynamically retrieved DG, etc.

[0294] In some embodiments, the Radio Resource Management (RRM) reference cell (corresponding to a second cell) of the SCell is configured via RRC dedicated signaling. This is the SSB RRM measurement result of the RRM reference cell or a modified value based on the SSB RRM measurement result of the RRM reference cell, used for carrier management of the SCell. Carrier management includes adding, deleting, modifying, activating, and / or deactivating carriers for the SCell. It is also used for SUL or NUL selection, uplink repetition determination, good beam judgment and selection, etc.

[0295] In some embodiments, a path loss reference cell (corresponding to a second cell) for the SCell is configured via RRC dedicated signaling to calculate the path loss of the SCell, etc.

[0296] In some embodiments, the RACH reference cell (corresponding to the second cell) of the SCell is configured through RRC dedicated signaling. The SSB reference signal based on the RACH reference cell is used to associate with the RO of the SCell for receiving MSG2, MSG4 or MSG B, etc.

[0297] Example 2, see Figure 4B, shows a scenario where the reference cell (corresponding to the first cell) and the UL only SCell have different signal coverage.

[0298] In some embodiments, a UL-only SCell is configured via RRC signaling, where the configuration includes only the UL carrier and no DL carrier. The UL-only SCell can be configured via explicit or implicit signaling. For example, a flag (e.g., 1 bit, corresponding to a first identifier) ​​can be used to indicate that the SCell is a UL-only SCell. Alternatively, it can be indicated implicitly, such as by not configuring a DL carrier, to imply that the SCell is a UL-only SCell.

[0299] In some embodiments, the identifiers of other serving cells (corresponding to the second identifier) ​​for cross-carrier scheduling of the SCell and the index of the SCell in the serving cell of the scheduling carrier are configured through RRC dedicated signaling.

[0300] In some embodiments, the DL timing reference cell (corresponding to the second cell) of the SCell is configured through RRC dedicated signaling. The SFN, slot, etc. of the DL reference timing cell are also used to determine the time domain location of CG resources, the time domain location of dynamically retrieved DG, etc.

[0301] In some embodiments, the Radio Resource Management (RRM) reference cell (corresponding to a second cell), at least one dedicated CSI-RS, and / or SSB reference signal for the SCell are configured via RRC dedicated signaling. This involves using the SSB RRM measurement results of the RRM reference cell, or a modified value based on those results, for carrier management of the SCell. Carrier management includes adding, deleting, modifying, activating, and / or deactivating carriers for the SCell. It is also used for SUL or NUL selection, uplink repetition determination, good beam judgment and selection, etc.

[0302] In some embodiments, a path loss reference cell (corresponding to a second cell) for the SCell is configured via RRC dedicated signaling to calculate the path loss of the SCell, etc.

[0303] In some embodiments, the configuration of the RACH reference cell (corresponding to the second cell) and at least one dedicated CSI-RS or SSB reference signal of the SCell is configured through RRC dedicated signaling. The SSB reference signal of the RACH reference cell is used to associate with the RO of the SCell and to receive MSG2, MSG4 or MSG B, etc.

[0304] Example 3, a scenario for obtaining path loss.

[0305] In some embodiments, pathloss can be used for UL power control, transmitting UL power of MSG1 during the RACH procedure, and / or selecting a preamble group during the RACH procedure, i.e., Group A or Group B, etc. The value of pathloss is related to many factors of the UE, such as the UE's location and the spectrum in which the UE operates.

[0306] In some embodiments, a frequency-domain related pathloss offset, denoted as pathloss-offset1, is configured via RRC dedicated signaling. The network side instructs the UE to move the related pathloss offset, denoted as pathloss-offset2, via DCI or MAC CE. Then, the UE's pathloss on the UL-only SCell is: (SSB transmit power of the reference carrier - SSB RSRP of the reference carrier) + pathloss-offset1 + pathloss-offset2.

[0307] In some embodiments, since the network may switch BWPs while the UE is operating, the path loss may differ depending on the BWP the UE is using. Therefore, when the network indicates the path loss offset, it also associates the BWP ID information in the MAC CE or DCI. Furthermore, the MAC CE or DCI contains the path loss offset associated with all configured UL BWPs. If the UE changes its BWP, the UE selects the appropriate path loss offset based on the active BWP.

[0308] At this point, the path loss of the UE on the UL-only SCell is: (SSB transmit power of the reference carrier - SSB RSRP of the reference carrier) + path loss - offset1 + path loss - offset2. Alternatively, the path loss is: (SSB transmit power of the reference carrier - SSB RSRP of the reference carrier) + path loss - offset2.

[0309] In some embodiments, if the configured BWP is wide enough, the path loss may differ when transmitting uplink at different frequency domain locations of the BWP. Therefore, the network side can divide the BWP into several narrowbands, numbered 0, 1, 2…n, and associate the BWP ID information and narrowband label information in the MAC CE or DCI. Furthermore, the MAC CE or DCI contains the path loss offset corresponding to all narrowbands associated with all configured UL BWPs. If the UE changes the BWP, or schedules time-frequency resources at different narrowband locations of a BWP, the UE selects an appropriate path loss offset based on the activated BWP and the scheduled frequency domain resource location.

[0310] At this point, the path loss of the UE on the UL-only SCell is: (SSB transmit power of the reference carrier - SSB RSRP of the reference carrier) + path loss - offset1 + path loss - offset2. Or the path loss is: (SSB transmit power of the reference carrier - SSB RSRP of the reference carrier) + path loss - offset2.

[0311] In this embodiment of the disclosure, some or all of the steps and their optional implementations can be arbitrarily combined with some or all of the steps in other embodiments, or arbitrarily combined with the optional implementations in other embodiments.

[0312] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed, which includes units or modules for implementing the steps performed by the terminal in any of the above methods. Another apparatus is also proposed, including units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods. Here, the core network device may include, but is not limited to, at least one of the following: a first network element and a second network element, etc.

[0313] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through a configuration file, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0314] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a CPU, microprocessor, graphics processing unit (GPU) (which can be understood as a microprocessor), or digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable, such as hardware circuits implemented by processor ASICs or PLDs, such as FPGAs. In reconfigurable hardware circuits, the process of the processor loading a configuration document and configuring the hardware circuit 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. Furthermore, 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), tensor processing unit (TPU), deep learning processing unit (DPU), etc.

[0315] Figure 5A is a schematic diagram of the structure of a terminal 5100 provided in an embodiment of this disclosure. As shown in Figure 5A, the terminal 5100 includes a transceiver module 5101. In some embodiments, the transceiver module 5101 is used to receive information, etc. Optionally, the transceiver module 5101 is used to perform at least one of the sending and / or receiving steps performed by the terminal 5100 in any of the above methods, which will not be described in detail here. In some embodiments, the terminal 5100 may include a processing module 5102.

[0316] Figure 5B is a schematic diagram of the structure of a network device 5200 provided in an embodiment of this disclosure. As shown in Figure 5B, the network device 5200 includes a transceiver module 5201. In some embodiments, the transceiver module 5201 is used to send information, etc. Optionally, the transceiver module 5201 is used to perform at least one of the sending and / or receiving steps performed by the network device 5200 in any of the above methods, which will not be described in detail here. In some embodiments, the network device 5200 may include a processing module 5202.

[0317] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver. Exemplarily, the transceiver module described above includes a transmitting module and / or a receiving module.

[0318] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0319] Figure 6A is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal, a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0320] As shown in Figure 6A, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 6100 can be used to execute any of the above methods. Optionally, one or more processors 6101 can be used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0321] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 6101 performs at least one of the other steps. In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0322] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Optionally, all or part of the memories 6103 may be located outside the communication device 6100. In optional embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memories 6103 and can be used to receive data from the memories 6103 or other devices, and to send data to the memories 6103 or other devices. For example, the interface circuits 6104 can read data stored in the memories 6103 and send that data to the processor 6101.

[0323] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0324] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of chip 6200 shown in Figure 6B, but it is not limited thereto.

[0325] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0326] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Optionally, all or part of the memories 6203 may be located outside chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data from memory 6203 or other devices, and interface circuit 6202 can be used to send data to memory 6203 or other devices. For example, interface circuit 6202 can read data stored in memory 6203 and send the data to processor 6201.

[0327] In some embodiments, the interface circuit 6202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 6202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 6202 performs data interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

[0328] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0329] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 6100, cause the communication device 6100 to perform 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 not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0330] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0331] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method characterized by comprising: The method is performed by a network device, and the method comprises: sending first information to a terminal; wherein the first information is used to indicate that a secondary cell (SCell) is a first type of SCell, the first type of SCell is configured with an uplink (UL) carrier and the first type of SCell is not configured with a downlink (DL) carrier, or the first type of SCell is configured with a UL carrier and a DL carrier, and the number of the UL carriers is greater than or equal to the number of the DL carriers.

2. The method of claim 1, wherein, The first information comprises one of: a first identifier; configuration information, in the case that the first type of SCell is configured with the UL carrier and the first type of SCell is not configured with the DL carrier, the configuration information indicates the configuration of the UL carrier, or in the case that the first type of SCell is configured with the UL carrier and the DL carrier, and the number of the UL carriers is greater than or equal to the number of DL carriers, the configuration information indicates the configuration of the UL carrier and the configuration of the DL carrier.

3. The method of claim 1, wherein, In the case that the first type of SCell is configured with the UL carrier and the first type SCell is not configured with the DL carrier, the configuration of the UL carrier is indicated by first signaling or second signaling, the first signaling is signaling carrying the configuration of the UL carrier, and the second signaling is signaling not carrying the configuration of the DL carrier; In the case that the first type of SCell is configured with the UL carrier and the DL carrier and the number of the UL carriers is greater than or equal to the number of the DL carriers, the configuration of the UL carrier and the configuration of the DL carrier are indicated by third signaling, the third signaling is signaling carrying the configuration of the UL carrier and the configuration of the DL carrier.

4. The method according to any one of claims 1 to 3, characterized in that, The method further comprises: sending second information to the terminal; wherein the second information comprises at least one of: a second identifier, the second identifier is used to indicate a first cell, the first cell is a cell scheduling the SCell by a carrier; an index of the SCell, the SCell is scheduled by the first cell according to the index; a third identifier, the third identifier is used to indicate a second cell, the second cell is a cell associated with the SCell, and the second cell is used to assist the SCell to provide services; configuration information of a reference signal, the reference signal is a signal transmitted in the second cell, and the reference signal is used to assist the SCell to provide services.

5. The method of claim 4, wherein, The reference signal comprises a channel state information reference signal (CSI-RS) and / or a synchronization signal block (SSB).

6. The method of claim 4, wherein, The reference signal is associated with a random access channel occasion (RO) used to access the SCell.

7. The method of claim 4, wherein, A system frame number (SFN) and / or a time slot of the second cell are used to determine resources used by the terminal in the SCell, the resources comprising one or more of a configured grant (CG) resource and a dynamic grant (DG) resource.

8. The method of claim 4, wherein, A measurement result of the reference signal is used for at least one of: carrier management of the SCell; auxiliary uplink (SUL) selection of the SCell; Non-UL assistance of the SCell; UL retransmission determination of the SCell; Beam selection of the SCell; Determining an RO for accessing the SCell.

9. The method of claim 4, wherein, The path loss of the second cell is used to determine the path loss of the terminal in the SCell.

10. The method of claim 9, wherein, The path loss is determined according to an offset value, a transmission power, and a reception power; wherein the offset value is used to adjust the path loss of the SCell, the transmission power is the power of transmitting SSB on a reference carrier, and the reception power is the power of receiving SSB on the reference carrier.

11. The method of claim 10, wherein, The method further comprises: sending third information to the terminal; wherein the third information is used to indicate the offset value.

12. The method according to claim 9 or 10, characterized in that, The offset value is associated with at least one of: a working frequency of the terminal; movement information of the terminal, the movement information being used to indicate the mobility of the terminal.

13. The method according to claim 11 or 12, characterized in that, The number of offset values is a plurality, and different offset values are associated with different bandwidth parts (BWPs).

14. The method of claim 13, wherein, In the case where each BWP includes a narrowband, the third information is used to indicate a plurality of offset values and a BWP and a narrowband associated with each offset value. In the case where each BWP does not include a narrowband, the third information is used to indicate a plurality of offset values and a B WP associated with each offset value.

15. A method of communication, comprising: The method is performed by a terminal, and the method comprises: receiving first information sent by a network device; wherein the first information is used to indicate that a secondary cell (SCell) is a first type of SCell, the first type of SCell is configured with an uplink (UL) carrier and the first type of SCell is not configured with a downlink (DL) carrier, or the first type of SCell is configured with a UL carrier and a DL carrier, and the number of UL carriers is greater than or equal to the number of DL carriers.

16. The method of claim 15, wherein, The first information comprises one of: a first identifier; configuration information, in the case where the first type of SCell is configured with the UL carrier and the first type of SCell is not configured with the DL carrier, the configuration information indicates the configuration of the UL carrier, or in the case where the first type of SCell is configured with the UL carrier and the DL carrier, and the number of UL carriers is greater than or equal to the number of DL carrier, the configuration information indicates the configuration of the UL carrier and the configuration of the DL carrier.

17. The method of claim 15, wherein, In the case where the first type of SCell is configured with the UL carrier and the first type SCell is not configured with the DL carrier, the configuration of the UL carrier is indicated by first signaling or second signaling, the first signaling carries the configuration of the UL carrier, and the second signaling is signaling that does not carry the configuration of the DL carrier; In the case where the first type of SCell is configured with the UL carrier and the DL carrier and the number of UL carriers is greater than or equal to the number of DL carriers, the configuration of the UL carrier and the configuration of the DL carrier are indicated by third signaling, and the third signaling is signaling that carries the configuration of the UL carrier and the configuration of the DL carrier.

18. The method of any one of claims 15-17, wherein, The method further comprises: receiving second information sent by the network device; wherein the second information comprises at least one of: a second identifier, the second identifier being used to indicate a first cell, the first cell being a cell scheduling the SCell via a carrier; an index of the SCell, the SCell being scheduled by the first cell according to the index; a third identifier, the third identifier being used to indicate a second cell, the second cell being a cell associated with the SCell, the second cell being used to assist the SCell to provide service; configuration information of a reference signal, the reference signal being a signal sent in the second cell, the reference signal being used to assist the SCell to provide service.

19. The method of claim 18, wherein, The reference signal comprises a channel state information reference signal (CSI-RS) and / or a synchronization signal block (SSB).

20. The method of claim 18, wherein, The reference signal is associated with a random access channel occasion (RO) used to access the SCell.

21. The method of claim 18, wherein, A system frame number (SFN) and / or a time slot of the second cell are used to determine a resource used by the terminal in the SCell, the resource comprising one or more of a configured grant (CG) resource and a dynamic grant (DG) resource.

22. The method of claim 18, wherein, A measurement result of the reference signal is used for at least one of: carrier management of the SCell; supplementary uplink (SUL) selection of the SCell; non-supplementary uplink (NUL) selection of the SCell; uplink retransmission determination of the SCell; beam selection of the SCell; determination of an RO used to access the SCell.

23. The method of claim 18, wherein, A path loss of the terminal in the second cell is used to determine a path loss of the terminal in the SCell.

24. The method of claim 18, wherein, The method comprises: determining the path loss based on a transmit power, a receive power, and an offset value; wherein the offset value is used to adjust the path loss of the SCell, the transmit power is a power of transmitting an SSB on a reference carrier, and the receive power is a power of receiving an SSB on the reference carrier.

25. The method of claim 24, wherein, The method further comprises: receiving third information sent by the network device; wherein the third information is used to indicate the offset value.

26. The method of claim 24 or 25, wherein, The offset value is associated with at least one of: an operating frequency of the terminal; movement information of the terminal, the movement information being used to indicate a mobility of the terminal.

27. The method of claim 25 or 26, wherein, The number of the offset values is a plurality, and different offset values are associated with different BWPs.

28. The method of claim 27, wherein, In a case where each of the BWPs comprises a narrow band, the third information is used to indicate a plurality of the offset values and a BWP and a narrow band associated with each offset value. In a case where each of the BWPs does not comprise a narrow band, the third information is used to indicate a plurality of the offset values and a corresponding BWP.

29. A communications device, characterized by The communication device is configured to perform the communication method of any one of claims 1-14 and 15-28.

30. A storage medium, the storage medium storing instructions, wherein, The instructions, when executed on the communication device, cause the communication device to perform the communication method of any one of claims 1-14 and 15-28 31. A program product comprising at least one of a program, instructions, characterized in that At least one of the program and the instructions, when executed by the communication device, implement the communication method of any one of claims 1-14 and 15-28.

Images