Resource configuration method and apparatus

Abstract

The embodiment of the application discloses a resource configuration method and device. The method comprises the following steps: receiving random access channel (RACH) configuration information for multiple PRACH transmission sent by a network device; determining configuration resources for multiple PRACH transmission according to the RACH configuration information for multiple PRACH transmission; and performing multiple PRACH transmission on the configuration resources. Thus, the terminal device can perform multiple PRACH transmission in one attempt of random access, the coverage of the physical random access channel (PRACH) is improved, the success rate of random access of the terminal device is effectively improved, and the system communication efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a resource configuration method and device. Background Art

[0002] In the 5G NR (New Radio) system, a terminal device can initiate a random access (RA) process to a network device, where the random access process can be a four-step random access or a two-step random access.

[0003] One of the bottlenecks of uplink coverage is the Physical Random Access Channel (PRACH). To improve PRACH coverage, 3GPP Release 18 is developing a solution based on multiple PRACH transmissions. The NR system also supports configuring different PRACH resources for devices with different feature combinations. How to configure resources for multiple PRACH transmissions is a key consideration. Summary of the Invention

[0004] A first embodiment of the present application provides a resource configuration method, which is executed by a terminal device and includes:

[0005] receiving random access channel (RACH) configuration information for multiple PRACH transmissions sent by a network device;

[0006] Determining, according to the RACH configuration information for the multiple PRACH transmissions, configured resources for the multiple PRACH transmissions;

[0007] Perform multiple PRACH transmissions on the configured resources.

[0008] Optionally, the RACH configuration information for multi-PRACH transmission includes at least one of the following:

[0009] a first RACH resource configuration, where the first RACH resource configuration is applicable to a terminal device supporting a feature combination of coverage enhancement;

[0010] a second RACH resource configuration, where the second RACH resource configuration is applicable to a terminal device supporting other feature combinations;

[0011] The third RACH resource configuration is applicable to a terminal device that does not support the feature combination.

[0012] Optionally, the configured resource for the multiple PRACH transmission is at least one of the following:

[0013] Random access occasion RO shared with RACH configuration resources not used for multiple PRACH transmissions;

[0014] An independent random access opportunity RO is dedicated to the multiple PRACH transmissions.

[0015] Optionally, in response to the configuration resource of the multiple PRACH transmission being a shared random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the shared random access opportunity RO:

[0016] Preamble received target power preambleReceivedTargetPower;

[0017] Power ramping step powerRampingStep;

[0018] The maximum number of preamble transmissions preambleTransMax;

[0019] Random access response window ra-ResponseWindow;

[0020] Random access synchronization signal block opportunity mask index ra-ssb-OccasionMaskIndex;

[0021] Reference signal received power threshold rsrp-ThresholdSSB-SUL;

[0022] Preamble start offset;

[0023] Number of preambles;

[0024] The number of times the multi-PRACH is transmitted.

[0025] Optionally, in response to the configuration resource for the multiple PRACH transmission being an independent random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the independent random access opportunity RO:

[0026] prach-ConfigurationIndex;

[0027] msg1-FDM;

[0028] msg1-FrequencyStart;

[0029] zeroCorrelationZoneConfig;

[0030] preambleReceivedTargetPower;

[0031] preambleTransMax;

[0032] powerRampingStep;

[0033] ra-ResponseWindow;

[0034] totalNumberOfRA-Preambles;

[0035] ssb-perRACH-OccasionAndCB-PreamblesPerSSB;

[0036] rsrp-ThresholdSSB-SUL;

[0037] ra-ContentionResolutionTimer;

[0038] prach-RootSequenceIndex;

[0039] msg1-SubcarrierSpacing;

[0040] restrictedSetConfig;

[0041] msg3-transformPrecoder;

[0042] ra-PrioritizationForAccessIdentity;

[0043] prach-RootSequenceIndex;

[0044] The number of times the multi-PRACH is transmitted.

[0045] Optionally, there is a corresponding relationship between the number of multi-PRACH transmissions and the terminal device; or,

[0046] There is a corresponding relationship between the number of multiple PRACH transmissions and the portion of bandwidth where the multiple PRACH transmissions are located; or,

[0047] There is a corresponding relationship between the number of times the multiple PRACH transmissions are performed and the RACH configuration information used for the multiple PRACH transmissions.

[0048] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes first indication information, and the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission.

[0049] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the second RACH resource configuration, the feature combination indication information in the second RACH resource configuration includes second indication information, and the second indication information is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission.

[0050] Optionally, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access and / or RACH resource configuration information for two-step random access.

[0051] Optionally, in response to the RACH configuration information for multi-PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes RACH resource configuration information for four-step random access.

[0052] Optionally, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information of contention-based random access (CBRA) and / or RACH resource configuration information of non-contention-based random access (CFRA).

[0053] Optionally, the RACH configuration information for multi-PRACH transmission includes at least one of the following indication information:

[0054] the number of multi-PRACH transmissions;

[0055] Position indication information of multiple random access opportunities RO where the multiple PRACH transmissions are located;

[0056] multiple preamble indexes of the multiple PRACH transmissions;

[0057] The multiple synchronization signal block SSB indexes of the multiple PRACH transmissions.

[0058] Optionally, the RACH resource configuration information of the CFRA includes at least one of the following:

[0059] RACH resource configuration based on CFRA triggered by the physical downlink control channel instruction PDCCH order;

[0060] RACH resource configuration based on CFRA triggered by cell handover;

[0061] RACH resource configuration based on CFRA triggered by addition or change of primary and secondary cells;

[0062] RACH resource configuration for CFRA triggered by beam failure recovery (BFR).

[0063] Optionally, the RACH resource configuration information of the CBRA includes at least one of the following:

[0064] RACH resource configuration for CBRA triggered by beam failure recovery (BFR);

[0065] RACH resource configuration based on CBRA triggered by cell handover;

[0066] RACH resource configuration based on CBRA triggered by addition or change of primary and secondary cells.

[0067] A second aspect of the present application provides a resource configuration method, which is performed by a network device and includes:

[0068] Sending random access channel (RACH) configuration information for multiple PRACH transmissions to the terminal device;

[0069] The RACH configuration information for multiple PRACH transmissions is used to determine the configuration resources for the multiple PRACH transmissions;

[0070] The configured resources are used for performing multiple PRACH transmissions.

[0071] Optionally, the RACH configuration information for multi-PRACH transmission includes at least one of the following:

[0072] a first RACH resource configuration, where the first RACH resource configuration is applicable to a terminal device supporting a feature combination of coverage enhancement;

[0073] a second RACH resource configuration, where the second RACH resource configuration is applicable to a terminal device supporting other feature combinations;

[0074] The third RACH resource configuration is applicable to a terminal device that does not support the feature combination.

[0075] Optionally, the configured resource for the multiple PRACH transmission is at least one of the following:

[0076] Random access occasion RO shared with RACH configuration resources not used for multiple PRACH transmissions;

[0077] An independent random access opportunity RO is dedicated to the multiple PRACH transmissions.

[0078] Optionally, in response to the configuration resource of the multiple PRACH transmission being a shared random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the shared random access opportunity RO:

[0079] Preamble received target power preambleReceivedTargetPower;

[0080] Power ramping step powerRampingStep;

[0081] The maximum number of preamble transmissions preambleTransMax;

[0082] Random access response window ra-ResponseWindow;

[0083] Random access synchronization signal block opportunity mask index ra-ssb-OccasionMaskIndex;

[0084] Reference signal received power threshold rsrp-ThresholdSSB-SUL;

[0085] Preamble start offset;

[0086] Number of preambles;

[0087] The number of times the multi-PRACH is transmitted.

[0088] Optionally, in response to the configuration resource for the multiple PRACH transmission being an independent random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the independent random access opportunity RO:

[0089] prach-ConfigurationIndex;

[0090] msg1-FDM;

[0091] msg1-FrequencyStart;

[0092] zeroCorrelationZoneConfig;

[0093] preambleReceivedTargetPower;

[0094] preambleTransMax;

[0095] powerRampingStep;

[0096] ra-ResponseWindow;

[0097] totalNumberOfRA-Preambles;

[0098] ssb-perRACH-OccasionAndCB-PreamblesPerSSB;

[0099] rsrp-ThresholdSSB-SUL;

[0100] ra-ContentionResolutionTimer;

[0101] prach-RootSequenceIndex;

[0102] msg1-SubcarrierSpacing;

[0103] restrictedSetConfig;

[0104] msg3-transformPrecoder;

[0105] ra-PrioritizationForAccessIdentity;

[0106] prach-RootSequenceIndex;

[0107] The number of times the multi-PRACH is transmitted.

[0108] Optionally, there is a corresponding relationship between the number of multi-PRACH transmissions and the terminal device; or,

[0109] There is a corresponding relationship between the number of multiple PRACH transmissions and the portion of bandwidth where the multiple PRACH transmissions are located; or,

[0110] There is a corresponding relationship between the number of times the multiple PRACH transmissions are performed and the RACH configuration information used for the multiple PRACH transmissions.

[0111] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes first indication information, and the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission.

[0112] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the second RACH resource configuration, the feature combination indication information in the second RACH resource configuration includes second indication information, and the second indication information is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission.

[0113] Optionally, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access and / or RACH resource configuration information for two-step random access.

[0114] Optionally, in response to the RACH configuration information for multi-PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes RACH resource configuration information for four-step random access.

[0115] Optionally, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information of contention-based random access (CBRA) and / or RACH resource configuration information of non-contention-based random access (CFRA).

[0116] Optionally, the RACH configuration information for multi-PRACH transmission includes at least one of the following indication information:

[0117] the number of multi-PRACH transmissions;

[0118] Position indication information of multiple random access opportunities RO where the multiple PRACH transmissions are located;

[0119] multiple preamble indexes of the multiple PRACH transmissions;

[0120] The multiple synchronization signal block SSB indexes of the multiple PRACH transmissions.

[0121] Optionally, the RACH resource configuration information of the CFRA includes at least one of the following:

[0122] RACH resource configuration based on CFRA triggered by the physical downlink control channel instruction PDCCH order;

[0123] RACH resource configuration based on CFRA triggered by cell handover;

[0124] RACH resource configuration based on CFRA triggered by addition or change of primary and secondary cells;

[0125] RACH resource configuration for CFRA triggered by beam failure recovery (BFR).

[0126] Optionally, the RACH resource configuration information of the CBRA includes at least one of the following:

[0127] RACH resource configuration for CBRA triggered by beam failure recovery (BFR);

[0128] RACH resource configuration based on CBRA triggered by cell handover;

[0129] RACH resource configuration based on CBRA triggered by addition or change of primary and secondary cells.

[0130] A third aspect of the present application provides a resource configuration device, which is applied to a terminal device and includes:

[0131] A transceiver unit, configured to receive random access channel (RACH) configuration information for multiple PRACH transmissions sent by a network device;

[0132] a processing unit, configured to determine, according to the RACH configuration information for the multiple PRACH transmission, a configuration resource for the multiple PRACH transmission;

[0133] The transceiver unit is further configured to perform multiple PRACH transmissions on the configured resources.

[0134] Optionally, the RACH configuration information for multi-PRACH transmission includes at least one of the following:

[0135] a first RACH resource configuration, where the first RACH resource configuration is applicable to a terminal device supporting a feature combination of coverage enhancement;

[0136] a second RACH resource configuration, where the second RACH resource configuration is applicable to a terminal device supporting other feature combinations;

[0137] The third RACH resource configuration is applicable to a terminal device that does not support the feature combination.

[0138] Optionally, the configured resource for the multiple PRACH transmission is at least one of the following:

[0139] Random access occasion RO shared with RACH configuration resources not used for multiple PRACH transmissions;

[0140] An independent random access opportunity RO is dedicated to the multiple PRACH transmissions.

[0141] Optionally, in response to the configuration resource of the multiple PRACH transmission being a shared random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the shared random access opportunity RO:

[0142] Preamble received target power preambleReceivedTargetPower;

[0143] Power ramping step powerRampingStep;

[0144] The maximum number of preamble transmissions preambleTransMax;

[0145] Random access response window ra-ResponseWindow;

[0146] Random access synchronization signal block opportunity mask index ra-ssb-OccasionMaskIndex;

[0147] Reference signal received power threshold rsrp-ThresholdSSB-SUL;

[0148] Preamble start offset;

[0149] Number of preambles;

[0150] The number of times the multi-PRACH is transmitted.

[0151] Optionally, in response to the configuration resource for the multiple PRACH transmission being an independent random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the independent random access opportunity RO:

[0152] prach-ConfigurationIndex;

[0153] msg1-FDM;

[0154] msg1-FrequencyStart;

[0155] zeroCorrelationZoneConfig;

[0156] preambleReceivedTargetPower;

[0157] preambleTransMax;

[0158] powerRampingStep;

[0159] ra-ResponseWindow;

[0160] totalNumberOfRA-Preambles;

[0161] ssb-perRACH-OccasionAndCB-PreamblesPerSSB;

[0162] rsrp-ThresholdSSB-SUL;

[0163] ra-ContentionResolutionTimer;

[0164] prach-RootSequenceIndex;

[0165] msg1-SubcarrierSpacing;

[0166] restrictedSetConfig;

[0167] msg3-transformPrecoder;

[0168] ra-PrioritizationForAccessIdentity;

[0169] prach-RootSequenceIndex;

[0170] The number of times the multi-PRACH is transmitted.

[0171] Optionally, there is a corresponding relationship between the number of multi-PRACH transmissions and the terminal device; or,

[0172] There is a corresponding relationship between the number of multiple PRACH transmissions and the portion of bandwidth where the multiple PRACH transmissions are located; or,

[0173] There is a corresponding relationship between the number of times the multiple PRACH transmissions are performed and the RACH configuration information used for the multiple PRACH transmissions.

[0174] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes first indication information, and the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission.

[0175] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the second RACH resource configuration, the feature combination indication information in the second RACH resource configuration includes second indication information, and the second indication information is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission.

[0176] Optionally, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access and / or RACH resource configuration information for two-step random access.

[0177] Optionally, in response to the RACH configuration information for multi-PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes RACH resource configuration information for four-step random access.

[0178] Optionally, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information of contention-based random access (CBRA) and / or RACH resource configuration information of non-contention-based random access (CFRA).

[0179] Optionally, the RACH configuration information for multi-PRACH transmission includes at least one of the following indication information:

[0180] the number of multi-PRACH transmissions;

[0181] Position indication information of multiple random access opportunities RO where the multiple PRACH transmissions are located;

[0182] multiple preamble indexes of the multiple PRACH transmissions;

[0183] The multiple synchronization signal block SSB indexes of the multiple PRACH transmissions.

[0184] Optionally, the RACH resource configuration information of the CFRA includes at least one of the following:

[0185] RACH resource configuration based on CFRA triggered by the physical downlink control channel instruction PDCCH order;

[0186] RACH resource configuration based on CFRA triggered by cell handover;

[0187] RACH resource configuration based on CFRA triggered by addition or change of primary and secondary cells;

[0188] RACH resource configuration for CFRA triggered by beam failure recovery (BFR).

[0189] Optionally, the RACH resource configuration information of the CBRA includes at least one of the following:

[0190] RACH resource configuration for CBRA triggered by beam failure recovery (BFR);

[0191] RACH resource configuration based on CBRA triggered by cell handover;

[0192] RACH resource configuration based on CBRA triggered by addition or change of primary and secondary cells.

[0193] A fourth aspect of the present application provides a resource configuration device, which is applied to a network device and includes:

[0194] A transceiver unit, configured to send random access channel (RACH) configuration information for multiple PRACH transmissions to a terminal device;

[0195] The RACH configuration information for multiple PRACH transmissions is used to determine the configuration resources for the multiple PRACH transmissions;

[0196] The configured resources are used for performing multiple PRACH transmissions.

[0197] Optionally, the RACH configuration information for multi-PRACH transmission includes at least one of the following:

[0198] a first RACH resource configuration, where the first RACH resource configuration is applicable to a terminal device supporting a feature combination of coverage enhancement;

[0199] a second RACH resource configuration, where the second RACH resource configuration is applicable to a terminal device supporting other feature combinations;

[0200] The third RACH resource configuration is applicable to a terminal device that does not support the feature combination.

[0201] Optionally, the configured resource for the multiple PRACH transmission is at least one of the following:

[0202] Random access occasion RO shared with RACH configuration resources not used for multiple PRACH transmissions;

[0203] An independent random access opportunity RO is dedicated to the multiple PRACH transmissions.

[0204] Optionally, in response to the configuration resource of the multiple PRACH transmission being a shared random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the shared random access opportunity RO:

[0205] Preamble received target power preambleReceivedTargetPower;

[0206] Power ramping step powerRampingStep;

[0207] The maximum number of preamble transmissions preambleTransMax;

[0208] Random access response window ra-ResponseWindow;

[0209] Random access synchronization signal block opportunity mask index ra-ssb-OccasionMaskIndex;

[0210] Reference signal received power threshold rsrp-ThresholdSSB-SUL;

[0211] Preamble start offset;

[0212] Number of preambles;

[0213] The number of times the multi-PRACH is transmitted.

[0214] Optionally, in response to the configuration resource for the multiple PRACH transmission being an independent random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the independent random access opportunity RO:

[0215] prach-ConfigurationIndex;

[0216] msg1-FDM;

[0217] msg1-FrequencyStart;

[0218] zeroCorrelationZoneConfig;

[0219] preambleReceivedTargetPower;

[0220] preambleTransMax;

[0221] powerRampingStep;

[0222] ra-ResponseWindow;

[0223] totalNumberOfRA-Preambles;

[0224] ssb-perRACH-OccasionAndCB-PreamblesPerSSB;

[0225] rsrp-ThresholdSSB-SUL;

[0226] ra-ContentionResolutionTimer;

[0227] prach-RootSequenceIndex;

[0228] msg1-SubcarrierSpacing;

[0229] restrictedSetConfig;

[0230] msg3-transformPrecoder;

[0231] ra-PrioritizationForAccessIdentity;

[0232] prach-RootSequenceIndex;

[0233] The number of times the multi-PRACH is transmitted.

[0234] Optionally, there is a corresponding relationship between the number of multi-PRACH transmissions and the terminal device; or,

[0235] There is a corresponding relationship between the number of multiple PRACH transmissions and the portion of bandwidth where the multiple PRACH transmissions are located; or,

[0236] There is a corresponding relationship between the number of times the multiple PRACH transmissions are performed and the RACH configuration information used for the multiple PRACH transmissions.

[0237] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes first indication information, and the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission.

[0238] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the second RACH resource configuration, the feature combination indication information in the second RACH resource configuration includes second indication information, and the second indication information is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission.

[0239] Optionally, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access and / or RACH resource configuration information for two-step random access.

[0240] Optionally, in response to the RACH configuration information for multi-PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes RACH resource configuration information for four-step random access.

[0241] Optionally, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information of contention-based random access (CBRA) and / or RACH resource configuration information of non-contention-based random access (CFRA).

[0242] Optionally, the RACH configuration information for multi-PRACH transmission includes at least one of the following indication information:

[0243] the number of multi-PRACH transmissions;

[0244] Position indication information of multiple random access opportunities RO where the multiple PRACH transmissions are located;

[0245] multiple preamble indexes of the multiple PRACH transmissions;

[0246] The multiple synchronization signal block SSB indexes of the multiple PRACH transmissions.

[0247] Optionally, the RACH resource configuration information of the CFRA includes at least one of the following:

[0248] RACH resource configuration based on CFRA triggered by the physical downlink control channel instruction PDCCH order;

[0249] RACH resource configuration based on CFRA triggered by cell handover;

[0250] RACH resource configuration based on CFRA triggered by addition or change of primary and secondary cells;

[0251] RACH resource configuration for CFRA triggered by beam failure recovery (BFR).

[0252] Optionally, the RACH resource configuration information of the CBRA includes at least one of the following:

[0253] RACH resource configuration for CBRA triggered by beam failure recovery (BFR);

[0254] RACH resource configuration based on CBRA triggered by cell handover;

[0255] RACH resource configuration based on CBRA triggered by addition or change of primary and secondary cells.

[0256] The fifth aspect embodiment of the present application proposes a communication device, which includes a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory so that the device executes the resource configuration method described in the first aspect embodiment above.

[0257] The sixth aspect embodiment of the present application proposes a communication device, which includes a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory so that the device executes the resource configuration method described in the second aspect embodiment above.

[0258] The seventh aspect embodiment of the present application proposes a communication device, which includes a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the resource configuration method described in the first aspect embodiment above.

[0259] The eighth embodiment of the present application proposes a communication device, which includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to enable the device to execute the resource configuration method described in the second embodiment above.

[0260] The ninth aspect of the present application provides a computer-readable storage medium for storing instructions. When the instructions are executed, the resource configuration method described in the first aspect of the present application is implemented.

[0261] The tenth embodiment of the present application proposes a computer-readable storage medium for storing instructions. When the instructions are executed, the resource configuration method described in the second embodiment above is implemented.

[0262] The eleventh embodiment of the present application proposes a computer program, which, when executed on a computer, enables the computer to execute the resource configuration and allocation method described in the first embodiment.

[0263] The twelfth embodiment of the present application proposes a computer program, which, when running on a computer, enables the computer to execute the resource configuration method described in the second embodiment.

[0264] A resource configuration method and apparatus provided in an embodiment of the present application receives random access channel (RACH) configuration information for multiple PRACH transmissions sent by a network device, determines, based on the RACH configuration information for multiple PRACH transmissions, configuration resources for multiple PRACH transmissions, and performs multiple PRACH transmissions on the configuration resources, so that a terminal device can perform multiple PRACH transmissions in one random access attempt, thereby improving the coverage of the physical random access channel (PRACH), effectively improving the success rate of random access of the terminal device, and improving the communication efficiency of the system.

[0265] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0266] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0267] Figure 1 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0268] Figure 2 This is a flow chart of a resource configuration method provided in an embodiment of the present application;

[0269] Figure 3 This is a flow chart of a resource configuration method provided in an embodiment of the present application;

[0270] Figure 4 This is a flow chart of a resource configuration method provided in an embodiment of the present application;

[0271] Figure 5 This is a flow chart of a resource configuration method provided in an embodiment of the present application;

[0272] Figure 6 This is a flow chart of a resource configuration method provided in an embodiment of the present application;

[0273] Figure 7 This is a flow chart of a resource configuration method provided in an embodiment of the present application;

[0274] Figure 8 This is a schematic diagram of the structure of a resource configuration device provided in an embodiment of the present application;

[0275] Figure 9 This is a schematic diagram of the structure of a resource configuration device provided in an embodiment of the present application;

[0276] Figure 10 This is a schematic diagram of the structure of another resource configuration device provided in an embodiment of the present application;

[0277] Figure 11 This is a schematic diagram of the structure of a chip provided in an embodiment of the present application. DETAILED DESCRIPTION

[0278] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numbers in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0279] The terms used in the embodiments of this application are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of this application. The singular forms "a" and "the" used in the embodiments of this application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0280] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present application, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at the time of" or "when" or "in response to a determination."

[0281] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0282] In order to better understand the resource configuration method disclosed in the embodiment of the present application, the communication system to which the embodiment of the present application is applicable is first described below.

[0283] See Figure 1 , Figure 1 This is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. The communication system may include but is not limited to a network device and a terminal device. Figure 1 The number and form of the devices shown are for example only and do not constitute a limitation on the embodiments of the present application. In actual applications, two or more network devices and two or more terminal devices may be included. Figure 1 The communication system shown includes a network device 101 and a terminal device 102 as an example.

[0284] It should be noted that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as Long Term Evolution (LTE) systems, fifth-generation mobile communication systems, 5G new air interface systems, or other future new mobile communication systems.

[0285] The network device 101 in the embodiment of the present application is an entity on the network side for transmitting or receiving signals. For example, the network device 101 may be an evolved NodeB (eNB), a transmission point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device. The network device provided in the embodiment of the present application may be composed of a centralized unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit. The CU-DU structure may be used to split the protocol layer of a network device, such as a base station, and the functions of some protocol layers are placed in the CU for centralized control, while the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

[0286] The terminal device 102 in the embodiment of the present application is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device can also be called a terminal device (terminal), user equipment (UE), mobile station (MS), mobile terminal device (MT), etc. The terminal device can be a car with communication function, a smart car, a mobile phone (Mobile Phone), a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (Industrial Control), a wireless terminal device in self-driving (Self-Driving), a wireless terminal device in remote medical surgery (Remote Medical Surgery), a wireless terminal device in smart grid (Smart Grid), a wireless terminal device in transportation safety (Transportation Safety), a wireless terminal device in smart city (Smart City), a wireless terminal device in smart home (Smart Home), etc. The embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal device.

[0287] In the 5G NR (New Radio) system, the terminal device 102 can initiate a random access (RA) process to the network device 101, where the random access process can be a four-step random access (4-stepRA) or a two-step random access (2-stepRA).

[0288] One of the bottlenecks of uplink coverage is the Physical Random Access Channel (PRACH). To improve PRACH coverage, 3GPP Release 18 is developing a solution based on multiple PRACH transmissions.

[0289] The NR system also supports configuring different PRACH resources for terminal devices with different feature combinations. The feature combination supports the following feature combinations:

[0290] Coverage Enhancement; Reduced Capability (RedCap); Small Data Transmission (SDT); Slice.

[0291] How to configure the configuration resources for multiple PRACH transmissions is an issue that needs to be considered.

[0292] It can be understood that the communication system described in the embodiment of the present application is for the purpose of more clearly illustrating the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided by the embodiment of the present application. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present application is also applicable to similar technical problems.

[0293] The resource configuration method and device provided by this application are described in detail below with reference to the accompanying drawings.

[0294] See Figure 2 , Figure 2 This is a flow chart of a resource configuration method provided by an embodiment of the present application. It should be noted that the resource configuration method of the embodiment of the present application is executed by a terminal device. This method can be executed independently or in combination with any other embodiment of the present application. Figure 2 As shown, the method may include the following steps:

[0295] Step 201: Receive random access channel (RACH) configuration information for multiple PRACH transmissions sent by a network device.

[0296] In an embodiment of the present application, a terminal device receives RACH (Random Access Channel) configuration information for multi-PRACH transmission sent by a network device.

[0297] In some implementations, the RACH configuration information for multiple PRACH transmissions includes at least one of the following:

[0298] a first RACH resource configuration, where the first RACH resource configuration is applicable to a terminal device supporting a feature combination of coverage enhancement;

[0299] a second RACH resource configuration, where the second RACH resource configuration is applicable to a terminal device supporting other feature combinations;

[0300] The third RACH resource configuration is applicable to a terminal device that does not support the feature combination.

[0301] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the first RACH resource configuration, the first RACH resource configuration is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission.

[0302] In one possible implementation, the first RACH resource configuration may include first indication information, where the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission. In another possible implementation, the first RACH resource configuration is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission; that is, upon receiving the first RACH resource configuration, the terminal device can determine that the first RACH resource configuration is used for the multiple PRACH transmission.

[0303] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the second RACH resource configuration, the characteristic combination indication information in the second RACH resource configuration is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission.

[0304] In one possible implementation, the characteristic combination indication information of the second RACH resource configuration may include second indication information, where the second indication information is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission. In another possible implementation, the second RACH resource configuration or the characteristic combination indication information of the second RACH resource configuration is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission; that is, when the terminal device receives the second RACH resource configuration or the characteristic combination indication information of the second RACH resource configuration, it can determine that the second RACH resource configuration is used for the multiple PRACH transmission.

[0305] In some implementations, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access and / or RACH resource configuration information for two-step random access.

[0306] That is, as a possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access.

[0307] As another possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for two-step random access.

[0308] As another possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access and RACH resource configuration information for two-step random access.

[0309] Optionally, in response to the RACH configuration information for multi-PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes RACH resource configuration information for four-step random access, that is, the coverage enhancement feature combination does not include RACH resource configuration information for two-step random access.

[0310] In some implementations, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for contention-based random access (CBRA) and / or RACH resource configuration information for non-contention-based random access (CFRA).

[0311] That is, as a possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information of contention-based random access (CBRA).

[0312] As another possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information of non-contention-based random access CFRA.

[0313] As another possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for contention-based random access (CBRA) and RACH resource configuration information for non-contention-based random access (CFRA).

[0314] In some implementations, the RACH configuration information for multiple PRACH transmissions includes at least one of the following indication information:

[0315] The number of times the multi-PRACH is transmitted;

[0316] Position indication information of multiple random access occasions RO (RACHOccasion) where the multiple PRACH transmissions are located;

[0317] Multiple preamble indices (preambleindex) of the multiple PRACH transmissions;

[0318] The indexes of multiple synchronization signal blocks SSB (Synchronization Signal Block) transmitted by the multiple PRACHs.

[0319] Optionally, the RACH resource configuration information of the CFRA includes at least one of the following:

[0320] RACH resource configuration based on CFRA triggered by the physical downlink control channel instruction PDCCH order;

[0321] RACH resource configuration based on CFRA triggered by cell handover;

[0322] Add or change the RACH resource configuration of the triggered CFRA based on the primary secondary cell (PSCell);

[0323] RACH resource configuration based on CFRA triggered by beam failure recovery (BFR).

[0324] Optionally, the RACH resource configuration information of the CBRA includes at least one of the following:

[0325] RACH resource configuration for CBRA triggered by beam failure recovery (BFR);

[0326] RACH resource configuration based on CBRA triggered by cell handover;

[0327] RACH resource configuration based on CBRA triggered by addition or change of primary and secondary cells.

[0328] Step 202: Determine the configured resources for the multiple PRACH transmission according to the RACH configuration information for the multiple PRACH transmission.

[0329] In an embodiment of the present application, the terminal device can determine the configuration resources for the multi-PRACH transmission based on the RACH configuration information sent by the network device.

[0330] In some implementations, the configured resource for the multiple PRACH transmissions is at least one of the following:

[0331] Random access occasion RO shared with RACH configuration resources not used for multiple PRACH transmissions;

[0332] An independent random access opportunity RO is dedicated to the multiple PRACH transmissions.

[0333] The random access opportunity RO shared with the RACH configuration resources not used for multiple PRACH transmissions refers to: a RO shared by the RACH resources used for multiple PRACH transmissions and the RACH resources not used for multiple PRACH transmissions.

[0334] Optionally, in response to the configuration resource of the multiple PRACH transmission being a shared random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the shared random access opportunity RO:

[0335] Preamble received target power preambleReceivedTargetPower;

[0336] Power ramping step powerRampingStep;

[0337] The maximum number of preamble transmissions preambleTransMax;

[0338] Random access response window ra-ResponseWindow;

[0339] Random access synchronization signal block opportunity mask index ra-ssb-OccasionMaskIndex;

[0340] Reference signal received power threshold rsrp-ThresholdSSB-SUL;

[0341] Preamble start offset;

[0342] Number of preambles;

[0343] The number of times the multi-PRACH is transmitted.

[0344] Optionally, in response to the configuration resource for the multiple PRACH transmission being an independent random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the independent random access opportunity RO:

[0345] prach-ConfigurationIndex;

[0346] msg1-FDM;

[0347] msg1-FrequencyStart;

[0348] zeroCorrelationZoneConfig;

[0349] preambleReceivedTargetPower;

[0350] preambleTransMax;

[0351] powerRampingStep;

[0352] ra-ResponseWindow;

[0353] totalNumberOfRA-Preambles;

[0354] ssb-perRACH-OccasionAndCB-PreamblesPerSSB;

[0355] rsrp-ThresholdSSB-SUL;

[0356] ra-ContentionResolutionTimer;

[0357] prach-RootSequenceIndex;

[0358] msg1-SubcarrierSpacing;

[0359] restrictedSetConfig;

[0360] msg3-transformPrecoder;

[0361] ra-PrioritizationForAccessIdentity;

[0362] prach-RootSequenceIndex;

[0363] The number of times the multi-PRACH is transmitted.

[0364] It should be noted that, in the embodiments of the present application, the definitions of the above parameters may refer to the 3GPP technical specification TS38.331.

[0365] Optionally, the number of times the multi-PRACH is transmitted corresponds to the terminal device; or,

[0366] There is a corresponding relationship between the number of times the multiple PRACH transmissions are transmitted and the portion of the bandwidth where the multiple PRACH transmissions are located; or,

[0367] There is a corresponding relationship between the number of times the multiple PRACH transmission is performed and the RACH configuration information used for the multiple PRACH transmission.

[0368] That is, the number of multi-PRACH transmissions corresponding to each terminal device can be configured according to each terminal device, and different terminal devices can correspond to different transmission numbers; the number of multi-PRACH transmissions corresponding to the partial bandwidth BWP (BandwidthPart) where the multi-PRACH transmission is located can be configured, and the number of PRACH transmissions in different BWPs can be different; the number of multi-PRACH transmissions corresponding to the RACH configuration information can also be configured according to the RACH configuration information used for multi-PRACH transmission, and different RACH configuration information can correspond to different configurations of PRACH transmission numbers.

[0369] Step 203: Perform multiple PRACH transmissions on the configured resources.

[0370] In an embodiment of the present application, the terminal device can perform multiple PRACH transmissions on the configuration resources determined according to the RACH configuration information for multiple PRACH transmissions.

[0371] In some implementations, the terminal device may map the multiple PRACH transmissions to a plurality of determined configuration resources according to a certain mapping rule for transmission.

[0372] In summary, by receiving the random access channel RACH configuration information for multiple PRACH transmissions sent by the network device, determining the configuration resources for multiple PRACH transmissions according to the RACH configuration information for multiple PRACH transmissions, and performing multiple PRACH transmissions on the configuration resources, the terminal device can perform multiple PRACH transmissions in one random access attempt, thereby improving the coverage of the physical random access channel PRACH, effectively improving the success rate of random access of the terminal device, and improving the communication efficiency of the system.

[0373] See Figure 3 , Figure 3 This is a flow chart of a resource configuration method provided by an embodiment of the present application. It should be noted that the resource configuration method of the embodiment of the present application is executed by a terminal device. This method can be executed independently or in combination with any other embodiment of the present application. Figure 3 As shown, the method may include the following steps:

[0374] Step 301: Receive RACH configuration information for multi-PRACH transmission sent by a network device, where the RACH configuration information includes at least one of the following: a first RACH resource configuration, a second RACH resource configuration, and a third RACH resource configuration.

[0375] In an embodiment of the present application, a terminal device receives RACH configuration information for multi-PRACH transmission sent by a network device.

[0376] The first RACH resource configuration is applicable to a terminal device supporting a feature combination of coverage enhancement;

[0377] The second RACH resource configuration is applicable to terminal devices supporting other feature combinations;

[0378] The third RACH resource configuration is applicable to terminal devices that do not support the feature combination.

[0379] Among them, other feature combinations can be at least one of: reduced capability (RedCap, Reduced Capability), small data transmission (SDT, Small Data Transmission) and slice.

[0380] In some implementations, the configured resource for the multiple PRACH transmissions may be at least one of the following:

[0381] Random access opportunity RO (sharedRO) shared with RACH configuration resources not used for multiple PRACH transmissions;

[0382] A separate random access opportunity RO (separateRO) is dedicated to the multiple PRACH transmissions.

[0383] The random access opportunity RO shared with the RACH configuration resources not used for multiple PRACH transmissions refers to: a RO shared by the RACH resources used for multiple PRACH transmissions and the RACH resources not used for multiple PRACH transmissions.

[0384] Optionally, in response to the configuration resource for the multiple PRACH transmission being a shared RO (sharedRO), the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the multiple PRACH transmission:

[0385] Preamble received target power preambleReceivedTargetPower;

[0386] Power ramping step powerRampingStep;

[0387] The maximum number of preamble transmissions preambleTransMax;

[0388] Random access response window ra-ResponseWindow;

[0389] Random access synchronization signal block opportunity mask index ra-ssb-OccasionMaskIndex;

[0390] Reference signal received power threshold rsrp-ThresholdSSB-SUL;

[0391] Preamble start offset;

[0392] Number of preambles;

[0393] The number of times the multi-PRACH is transmitted.

[0394] Optionally, in response to the configuration resource for the multiple PRACH transmission being a separate RO (separateRO), the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the multiple PRACH transmission:

[0395] prach-ConfigurationIndex;

[0396] msg1-FDM;

[0397] msg1-FrequencyStart;

[0398] zeroCorrelationZoneConfig;

[0399] preambleReceivedTargetPower;

[0400] preambleTransMax;

[0401] powerRampingStep;

[0402] ra-ResponseWindow;

[0403] totalNumberOfRA-Preambles;

[0404] ssb-perRACH-OccasionAndCB-PreamblesPerSSB;

[0405] rsrp-ThresholdSSB-SUL;

[0406] ra-ContentionResolutionTimer;

[0407] prach-RootSequenceIndex;

[0408] msg1-SubcarrierSpacing;

[0409] restrictedSetConfig;

[0410] msg3-transformPrecoder;

[0411] ra-PrioritizationForAccessIdentity;

[0412] prach-RootSequenceIndex;

[0413] The number of times the multi-PRACH is transmitted.

[0414] It should be noted that, in the embodiments of the present application, the definitions of the above parameters may refer to the 3GPP technical specification TS38.331.

[0415] Optionally, in an embodiment of the present application, the number of transmissions of the multi-PRACH transmission may correspond to the terminal device; or correspond to the partial bandwidth BWP where the multi-PRACH transmission is located; or correspond to the RACH configuration information used for the multi-PRACH transmission.

[0416] That is, the number of multi-PRACH transmissions corresponding to each terminal device can be configured according to the terminal device, and different terminal devices can correspond to different transmission numbers; the number of multi-PRACH transmissions corresponding to the partial bandwidth BWP where the multi-PRACH transmission is located can also be configured according to the BWP, and the number of PRACH transmissions in different BWPs can be different; the number of multi-PRACH transmissions corresponding to the RACH configuration information can also be configured according to the RACH configuration information used for multi-PRACH transmission, and different RACH configuration information can correspond to different configurations of PRACH transmission numbers.

[0417] Optionally, in this embodiment of the present application, in response to the RACH configuration information for multiple PRACH transmission including the first RACH resource configuration, the first RACH resource configuration is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission.

[0418] In a possible implementation manner, the first RACH resource configuration may include first indication information, where the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission.

[0419] That is, if the RACH configuration information for multiple PRACH transmissions uses a RACH resource configuration applicable to a coverage-enhanced terminal device, the RACH resource configuration applicable to the coverage-enhanced terminal device includes indication information indicating that the RACH resource configuration is applicable to the multiple PRACH transmissions.

[0420] In another possible implementation, the first RACH resource configuration is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission; that is, when the terminal device receives the first RACH resource configuration, it can determine that the first RACH resource configuration is used for the multiple PRACH transmission.

[0421] As an example, a new IE may be added to the Information Element (IE) FeatureCombinationPreambles, and the added IE is used to indicate that the first RACH resource configuration may be used for multiple PRACH transmissions.

[0422] As another example, if the first RACH resource configuration uses a random access opportunity RO dedicated to the coverage enhanced terminal device, first indication information may be included in the RACH-ConfigCommon in the first RACH resource configuration to indicate that the RACH resource configuration may be used for multiple PRACH transmissions.

[0423] Optionally, in an embodiment of the present application, in response to the RACH configuration information for multiple PRACH transmission including the second RACH resource configuration, the characteristic combination indication information in the second RACH resource configuration is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission.

[0424] In a possible implementation manner, the characteristic combination indication information of the second RACH resource configuration may include second indication information, where the second indication information is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission.

[0425] That is, if the RACH configuration information for multiple PRACH transmissions uses a RACH resource configuration applicable to terminal devices with other feature combinations, the RACH resource configuration applicable to terminal devices with other feature combinations includes indication information indicating that the RACH resource configuration is applicable to the multiple PRACH transmissions.

[0426] In another possible implementation, the second RACH resource configuration or the characteristic combination indication information of the second RACH resource configuration is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission; that is, when the terminal device receives the second RACH resource configuration or the characteristic combination indication information of the second RACH resource configuration, it can determine that the second RACH resource configuration is used for the multiple PRACH transmission.

[0427] As an example, an enumeration type IE may be added to the information element featureCombination, and the IE may be set as an optional IE. If the value of the newly added IE is true, it indicates that the second RACH resource configuration can be used for the multi-PRACH transmission.

[0428] Optionally, the coding rule NeedCode of the newly added IE can be set to NeedR. The IE is set as an optional IE, and NeedR indicates that if the second RACH resource configuration does not carry the IE during a certain reception process, the configuration of the IE will be released before this reception.

[0429] Step 302: Determine the configured resources for the multiple PRACH transmission according to the RACH configuration information for the multiple PRACH transmission.

[0430] In an embodiment of the present application, the terminal device can determine the configuration resources for the multi-PRACH transmission based on the RACH configuration information sent by the network device.

[0431] As mentioned above, in some implementations, the configured resource for the multi-PRACH transmission may be at least one of the following:

[0432] Random access opportunity RO (sharedRO) shared with RACH configuration resources not used for multiple PRACH transmissions;

[0433] A separate random access opportunity RO (separateRO) is dedicated to the multiple PRACH transmissions.

[0434] The random access opportunity RO shared with the RACH configuration resources not used for multiple PRACH transmissions refers to: a RO shared by the RACH resources used for multiple PRACH transmissions and the RACH resources not used for multiple PRACH transmissions.

[0435] The terminal device can determine the configuration resources for the multi-PRACH transmission according to the configuration parameters of the sharedRO and the configuration parameters of the separateRO.

[0436] Step 303: Perform multiple PRACH transmissions on the configured resources.

[0437] In an embodiment of the present application, the terminal device can perform multiple PRACH transmissions on the configuration resources determined according to the RACH configuration information for multiple PRACH transmissions.

[0438] In some implementations, the terminal device may map the multiple PRACH transmissions to a plurality of determined configuration resources according to a certain mapping rule for transmission.

[0439] In summary, by receiving RACH configuration information for multiple PRACH transmissions sent by a network device, the RACH configuration information includes at least one of the following: a first RACH resource configuration, a second RACH resource configuration, and a third RACH resource configuration, and according to the RACH configuration information for multiple PRACH transmissions, determining the configuration resources for multiple PRACH transmissions, and performing multiple PRACH transmissions on the configuration resources, the terminal device can perform multiple PRACH transmissions in one random access attempt, thereby improving the coverage of the physical random access channel PRACH, effectively improving the success rate of random access of the terminal device, and improving the communication efficiency of the system.

[0440] See Figure 4 , Figure 4 This is a flow chart of a resource configuration method provided by an embodiment of the present application. It should be noted that the resource configuration method of the embodiment of the present application is executed by a terminal device. This method can be executed independently or in combination with any other embodiment of the present application. Figure 4 As shown, the method may include the following steps:

[0441] Step 401: Receive RACH configuration information for multi-PRACH transmission sent by a network device, where the RACH configuration information includes RACH resource configuration information for four-step random access and / or RACH resource configuration information for two-step random access.

[0442] In an embodiment of the present application, a terminal device receives RACH configuration information for multi-PRACH transmission sent by a network device.

[0443] As a possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access.

[0444] As another possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for two-step random access.

[0445] As another possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access and RACH resource configuration information for two-step random access.

[0446] Optionally, in an embodiment of the present application, if the RACH configuration information for multiple PRACH transmission includes a RACH resource configuration using four-step random access (4-stepRA), the RACH resource configuration of the four-step random access may include indication information indicating that the RACH resource configuration is applicable to the multiple PRACH transmission.

[0447] As an example, for four-step random access, indication information may be included in RACH-ConfigCommon to indicate the RACH resource configuration for the multiple PRACH transmissions. The indication information may be an explicit indicator, IE, or parameter that explicitly indicates that the RACH resource configuration is applicable to the multiple PRACH transmissions, or may be an implicit indication through a format or other attributes that indicates that the RACH resource configuration is applicable to the multiple PRACH transmissions.

[0448] Optionally, in an embodiment of the present application, if the RACH configuration information for multiple PRACH transmissions includes a RACH resource configuration using two-step random access (2-stepRA), the RACH resource configuration for the two-step random access may also include indication information indicating that the RACH resource configuration is applicable to the multiple PRACH transmissions.

[0449] As an example, for two-step random access, an indication information may be included in MsgA-ConfigCommon to indicate the RACH resource configuration for the multiple PRACH transmission. The indication information may be an explicit indicator or IE or parameter that explicitly indicates that the RACH resource configuration is applicable to the multiple PRACH transmission, or an implicit indication that the RACH resource configuration is applicable to the multiple PRACH transmission through a format or other attributes.

[0450] In some embodiments, in response to the RACH configuration information for multiple PRACH transmissions including the first RACH resource configuration, the first RACH resource configuration includes RACH resource configuration information for four-step random access. That is, in some embodiments, the RACH resource configuration for a coverage enhancement feature combination supporting multiple PRACH transmissions includes only RACH resource configuration information for four-step random access, and does not include RACH resource configuration information for two-step random access.

[0451] Step 402: Determine the configured resources for the multiple PRACH transmission according to the RACH configuration information for the multiple PRACH transmission.

[0452] In an embodiment of the present application, the terminal device can determine the configuration resources for the multi-PRACH transmission based on the RACH configuration information sent by the network device.

[0453] Step 403: Perform multiple PRACH transmissions on the configured resources.

[0454] In an embodiment of the present application, the terminal device can perform multiple PRACH transmissions on the configuration resources determined according to the RACH configuration information for multiple PRACH transmissions.

[0455] In some implementations, the terminal device may map the multiple PRACH transmissions to a plurality of determined configuration resources according to a certain mapping rule for transmission.

[0456] In summary, by receiving RACH configuration information for multiple PRACH transmissions sent by a network device, the RACH configuration information includes RACH resource configuration information for four-step random access and / or RACH resource configuration information for two-step random access. According to the RACH configuration information for multiple PRACH transmissions, the configuration resources for multiple PRACH transmissions are determined, and multiple PRACH transmissions are performed on the configuration resources, so that the terminal device can perform multiple PRACH transmissions in one random access attempt, thereby improving the coverage of the physical random access channel PRACH, effectively improving the success rate of random access of the terminal device, and improving the communication efficiency of the system.

[0457] See Figure 5 , Figure 5 This is a flow chart of a resource configuration method provided by an embodiment of the present application. It should be noted that the resource configuration method of the embodiment of the present application is executed by a terminal device. This method can be executed independently or in combination with any other embodiment of the present application. Figure 5 As shown, the method may include the following steps:

[0458] Step 501: Receive RACH configuration information for multi-PRACH transmission sent by a network device, where the RACH configuration information includes RACH resource configuration information for contention-based random access (CBRA) and / or RACH resource configuration information for non-contention-based random access (CFRA).

[0459] In an embodiment of the present application, a terminal device receives RACH configuration information for multi-PRACH transmission sent by a network device.

[0460] As a possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information of contention-based random access (CBRA).

[0461] As another possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information of non-contention-based random access CFRA.

[0462] As another possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for contention-based random access (CBRA) and RACH resource configuration information for non-contention-based random access (CFRA).

[0463] Optionally, the RACH resource configuration information of the CFRA includes at least one of the following:

[0464] RACH resource configuration based on CFRA triggered by the physical downlink control channel instruction PDCCH order;

[0465] RACH resource configuration based on CFRA triggered by cell handover;

[0466] RACH resource configuration based on CFRA triggered by addition or change of primary and secondary cells;

[0467] RACH resource configuration for CFRA triggered by beam failure recovery (BFR).

[0468] Optionally, the RACH resource configuration information of the CFRA includes the RACH resource configuration of the CFRA triggered based on the physical downlink control channel instruction PDCCHorder. As an example, the RACH resource configuration of the CFRA supporting multiple PRACH transmissions can be carried in the PDCCHorder, and the RACH resource configuration of the CFRA supporting multiple PRACH transmissions can also be carried in RACH-ConfigCommon.

[0469] Optionally, the RACH resource configuration information for the CFRA includes the RACH resource configuration of the CFRA triggered based on cell switching, or the RACH resource configuration information for the CFRA includes the RACH resource configuration of the CFRA triggered based on the addition or change of primary and secondary cells. As an example, the RACH resource configuration of the CFRA can be an RO shared with the RACH resource configuration of the CFRA that supports single PRACH transmission (does not support multiple PRACH transmission), or it can be an independent RO dedicated to the RACH resource configuration of the CFRA that supports multiple PRACH transmission.

[0470] As another example, the RACH resource configuration of the CFRA may also multiplex the RACH resource configuration of the CFRA supporting single PRACH transmission (not supporting multiple PRACH transmission).

[0471] As another example, the RACH resource configuration of the CFRA supporting multiple PRACH transmissions may be carried in the information element cfra, the RACH resource configuration of the CFRA supporting multiple PRACH transmissions may be carried in the information element cfra-TwoStep, or the RACH resource configuration of the CFRA supporting multiple PRACH transmissions may be carried in both the information element cfra and the information element cfra-TwoStep.

[0472] As another example, the CFRA may optionally support only four-step random access. For a CFRA supporting only four-step random access, the configuration of the CFRA supporting multiple PRACH transmissions does not include the configuration in cfra-TwoStep. The RACH resource configuration of the CFRA supporting multiple PRACH transmissions is carried in cfra.

[0473] Optionally, the RACH resource configuration information for the CFRA includes the RACH resource configuration of the CFRA triggered based on beam failure recovery BFR. As an example, the RACH resource configuration of the CFRA can be an RO shared with the RACH resource configuration of the CFRA that supports single PRACH transmission (does not support multiple PRACH transmission), or it can be an independent RO dedicated to the RACH resource configuration of the CFRA that supports multiple PRACH transmission.

[0474] As an example, the configuration of the CFRA supporting multiple PRACH transmissions may include at least one of the following parameters:

[0475] rootSequenceIndex-BFR;

[0476] preambleReceivedTargetPower;

[0477] powerRampingStep;

[0478] preambleTransMax;

[0479] ra-ResponseWindow;

[0480] candidateBeamRSList;

[0481] rsrp-ThresholdSSB;

[0482] ssb-perRACH-Occasion;

[0483] ra-ssb-OccasionMaskIndex;

[0484] recoverySearchSpaceId;

[0485] ra-Prioritization;

[0486] msg1-SubcarrierSpacing.

[0487] It should be noted that, in the embodiments of the present application, the definitions of the above parameters may refer to the 3GPP technical specification TS38.331.

[0488] As another example, the RACH resource configuration of the CFRA may also multiplex the RACH resource configuration of the CFRA supporting single PRACH transmission (not supporting multiple PRACH transmission).

[0489] As another example, the primary cell and the secondary cell can separately configure the RACH resource configuration of the CFRA, that is, the RACH resource configuration of the CFRA supporting multiple PRACH transmissions is carried in the configuration BeamFailureRecoveryConfig of the primary cell, and the RACH resource configuration of the CFRA supporting multiple PRACH transmissions is also carried in the configuration BeamFailureRecoverySCellConfig of the secondary cell. The RACH resource configuration of the CFRA of the primary cell and the secondary cell can be the same or different.

[0490] Optionally, the RACH resource configuration information of the CBRA includes at least one of the following:

[0491] RACH resource configuration for CBRA triggered by beam failure recovery (BFR);

[0492] RACH resource configuration based on CBRA triggered by cell handover;

[0493] RACH resource configuration based on CBRA triggered by addition or change of primary and secondary cells.

[0494] Optionally, the RACH resource configuration information of the CBRA includes the RACH resource configuration of the CBRA triggered based on beam failure recovery (BFR). As an example, the configuration of the CBRA supporting multiple PRACH transmissions may include at least one of the following parameters:

[0495] preambleReceivedTargetPower;

[0496] powerRampingStep;

[0497] preambleTransMax;

[0498] ra-ResponseWindow;

[0499] ra-Prioritization;

[0500] ra-PrioritizationTwoStep;

[0501] msg1-SubcarrierSpacing.

[0502] It should be noted that, in the embodiments of the present application, the definitions of the above parameters may refer to the 3GPP technical specification TS38.331.

[0503] Optionally, the RACH resource configuration information of the CBRA includes a RACH resource configuration of the CBRA triggered by cell switching, or the RACH resource configuration information of the CBRA includes a RACH resource configuration of the CBRA triggered by adding or changing a primary or secondary cell. As an example, the configuration of the CBRA supporting multiple PRACH transmissions may include at least one of the following parameters:

[0504] preambleReceivedTargetPower;

[0505] powerRampingStep;

[0506] preambleTransMax;

[0507] ra-ResponseWindow;

[0508] ra-Prioritization;

[0509] ra-PrioritizationTwoStep;

[0510] msg1-SubcarrierSpacing.

[0511] It should be noted that, in the embodiments of the present application, the definitions of the above parameters may refer to the 3GPP technical specification TS38.331.

[0512] Step 502: Determine the configured resources for the multiple PRACH transmission according to the RACH configuration information for the multiple PRACH transmission.

[0513] In an embodiment of the present application, the terminal device can determine the configuration resources for the multi-PRACH transmission based on the RACH configuration information sent by the network device.

[0514] Step 503: Perform multiple PRACH transmissions on the configured resources.

[0515] In an embodiment of the present application, the terminal device can perform multiple PRACH transmissions on the configuration resources determined according to the RACH configuration information for multiple PRACH transmissions.

[0516] In some implementations, the terminal device may map the multiple PRACH transmissions to a plurality of determined configuration resources according to a certain mapping rule for transmission.

[0517] In summary, by receiving RACH configuration information for multiple PRACH transmissions sent by a network device, the RACH configuration information includes RACH resource configuration information for contention-based random access CBRA and / or RACH resource configuration information for non-contention-based random access CFRA. According to the RACH configuration information for multiple PRACH transmissions, the configuration resources for multiple PRACH transmissions are determined, and multiple PRACH transmissions are performed on the configuration resources, so that the terminal device can perform multiple PRACH transmissions in one random access attempt, thereby improving the coverage of the physical random access channel PRACH, effectively improving the success rate of random access of the terminal device, and improving the system communication efficiency.

[0518] See Figure 6 , Figure 6 This is a flow chart of a resource configuration method provided by an embodiment of the present application. It should be noted that the resource configuration method of the embodiment of the present application is executed by a terminal device. This method can be executed independently or in combination with any other embodiment of the present application. Figure 6 As shown, the method may include the following steps:

[0519] Step 601: Receive RACH configuration information for multiple PRACH transmissions sent by a network device, where the RACH configuration information includes at least one of the following indication information: the number of multiple PRACH transmissions, position indication information of multiple random access opportunities RO where the multiple PRACH transmissions are located, multiple preamble code indexes of the multiple PRACH transmissions, and multiple synchronization signal block SSB indexes of the multiple PRACH transmissions.

[0520] In an embodiment of the present application, the RACH configuration information for multiple PRACH transmissions further includes at least one of the following indication information: the number of multiple PRACH transmissions, the position indication information of multiple random access opportunities RO where the multiple PRACH transmissions are located, the multiple preamble code indexes of the multiple PRACH transmissions, and the multiple synchronization signal block SSB indexes of the multiple PRACH transmissions.

[0521] The terminal device can determine the resources configured for the multiple PRACH transmissions, as well as the multiple preambles transmitted in the PRACH, and / or the multiple SSBs transmitted in the PRACH based on the at least one indication information.

[0522] In some implementations, the position indication information of the multiple random access opportunities (ROs) where the multiple PRACH transmissions are located may indicate at least one of the following:

[0523] The starting RO in the multiple ROs and the number of the multiple ROs; the position of each RO in the multiple ROs; the number of the multiple ROs.

[0524] As a possible implementation manner, the location indication information of the multiple ROs may indicate a starting RO among the multiple ROs and the number of the multiple ROs.

[0525] As an example, for SSB-mapped ROs, the PRACH Mask Index can be used to indicate the starting RO among the multiple ROs. It should be noted that the value of the PRACH Mask Index should only represent the position of one RO (for example, PRACH Mask Index values ​​1 to 8 represent RO#1-RO#8 respectively).

[0526] As another example, for the RO mapped to the CSI-RS, the ra-OccasionList may be used to indicate the starting RO among the multiple ROs, and the ra-OccasionList carries the index of the starting RO.

[0527] As another possible implementation manner, the location indication information of the multiple ROs may also indicate the location of each RO in the multiple ROs.

[0528] As an example, for SSB-mapped ROs, the position of each RO can be indicated by a PRACH Mask Index. It should be noted that, similarly, the PRACH Mask Index value should only represent the position of one RO (for example, PRACH Mask Index values ​​1 to 8 represent RO#1 to RO#8, respectively).

[0529] As another example, for the RO mapped by the CSI-RS, the position of each RO in the multiple ROs may be indicated by using ra-OccasionList, and the ra-OccasionList carries the index of each RO in the multiple ROs.

[0530] As another possible implementation manner, the location indication information of the multiple ROs may further indicate the number of the multiple ROs.

[0531] As an example, for the RO mapped to SSB, the position of each RO in the multiple ROs can be indicated by the PRACH Mask Index. For example, when PRACH Mask Index = 0, it means that all ROs are available, when PRACH Mask Index = 9, it means that ROs with even indexes are available, and when PRACH Mask Index = 10, it means that ROs with odd indexes are available. The terminal device can select X (X is a positive integer) ROs from these available ROs to send PRACH. The value of X depends on the mapping rules of M and N. The positions of the X ROs can be the first X or last X of the multiple available ROs, or X equally spaced ROs in the multiple available ROs, etc., which are not limited here.

[0532] As another example, for the RO mapped to the CSI-RS, the position of each RO in the multiple ROs can be indicated by the ra-OccasionList, which carries the index index of each RO in the multiple ROs. The terminal device can select X (X is a positive integer) ROs from the multiple ROs indicated in the ra-OccasionList to send PRACH. The value of X depends on the mapping rules of M and N. The positions of the X ROs can be the first X or last X of the multiple available ROs, or the X equally spaced ROs in the multiple available ROs, etc., which are not limited here.

[0533] It should be noted that in the above example, the mapping rules of M and N are:

[0534] A mapping rule between the multiple preamble index digits M of the multiple PRACH transmissions and the number of times N of the multiple PRACH transmissions; or

[0535] A mapping rule between the multiple SSB index digits M of the multiple PRACH transmissions and the number of times N of the multiple PRACH transmissions; or

[0536] The mapping rule between the number of times the multiple PRACHs are transmitted and the number N of positions of the multiple ROs.

[0537] It should be noted that both M and N are positive integers.

[0538] In an embodiment of the present application, as an example, the terminal device maps M preamble indexes to N PRACH transmissions according to a certain rule. The mapping rule between M and N is the mapping rule between the multiple preamble index digits M of the multi-PRACH transmission and the number of times N of the multi-PRACH transmission. The mapping rule can be a 1:1 mapping, a 1:N mapping, or other mapping rules.

[0539] In an embodiment of the present application, as an example, the terminal device maps M SSB indexes to N PRACH transmissions according to a certain rule. The mapping rule between M and N is the mapping rule between the multiple SSB index digits M of the multi-PRACH transmission and the number of times N of the multi-PRACH transmission. The mapping rule can be a 1:1 mapping, a 1:N mapping, or other mapping rules.

[0540] In the embodiment of the present application, as an example, the terminal device maps M PRACH transmissions to N ROs according to a certain mapping rule. The mapping rule between M and N is the mapping rule between the number of multiple PRACH transmissions and the number of positions N of the multiple ROs. The mapping rule can be a 1:1 mapping, a 1:N mapping, or other mapping rules.

[0541] Step 602: Determine the configured resources for the multiple PRACH transmission according to the RACH configuration information for the multiple PRACH transmission.

[0542] In an embodiment of the present application, the terminal device can determine the configuration resources for the multi-PRACH transmission based on the RACH configuration information sent by the network device.

[0543] Step 603: Perform multiple PRACH transmissions on the configured resources.

[0544] In an embodiment of the present application, the terminal device can perform multiple PRACH transmissions on the configuration resources determined according to the RACH configuration information for multiple PRACH transmissions.

[0545] In some implementations, as described above, the terminal device may map the multiple PRACH transmissions to a plurality of determined configuration resources according to a certain mapping rule for transmission.

[0546] In summary, by receiving RACH configuration information for multiple PRACH transmissions sent by a network device, the RACH configuration information includes at least one of the following indication information: the number of multiple PRACH transmissions, the position indication information of the multiple random access opportunities RO where the multiple PRACH transmissions are located, the multiple preamble code indexes of the multiple PRACH transmissions, the multiple synchronization signal block SSB indexes of the multiple PRACH transmissions, and according to the RACH configuration information for multiple PRACH transmissions, the configuration resources for the multiple PRACH transmissions are determined, and multiple PRACH transmissions are performed on the configuration resources, so that the terminal device can perform multiple PRACH transmissions in one random access attempt, thereby improving the coverage of the physical random access channel PRACH, effectively improving the success rate of random access of the terminal device, and improving the system communication efficiency.

[0547] See Figure 7 , Figure 7 This is a flow chart of a resource configuration method provided by an embodiment of the present application. It should be noted that the resource configuration method of the embodiment of the present application is executed by a network device. This method can be executed independently or in combination with any other embodiment of the present application. Figure 7 As shown, the method may include the following steps:

[0548] Step 701: Send random access channel RACH configuration information for multiple PRACH transmission to a terminal device. The RACH configuration information for multiple PRACH transmission is used to determine configuration resources for multiple PRACH transmission. The configuration resources are used for multiple PRACH transmission.

[0549] In an embodiment of the present application, the network device can send RACH configuration information for multiple PRACH transmission to the terminal device, and the RACH configuration information for multiple PRACH transmission is used by the terminal device to perform multiple PRACH transmission.

[0550] In some implementations, the RACH configuration information for multiple PRACH transmissions includes at least one of the following:

[0551] A first RACH resource configuration, where the first RACH resource configuration is applicable to a terminal device supporting a feature combination of coverage enhancement;

[0552] a second RACH resource configuration, where the second RACH resource configuration is applicable to a terminal device supporting other feature combinations;

[0553] The third RACH resource configuration is applicable to a terminal device that does not support the feature combination.

[0554] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the first RACH resource configuration, the first RACH resource configuration is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission.

[0555] In one possible implementation, the first RACH resource configuration may include first indication information, where the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission. In another possible implementation, the first RACH resource configuration is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission; that is, upon receiving the first RACH resource configuration, the terminal device can determine that the first RACH resource configuration is used for the multiple PRACH transmission.

[0556] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the second RACH resource configuration, the characteristic combination indication information in the second RACH resource configuration is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission.

[0557] In one possible implementation, the first RACH resource configuration may include first indication information, where the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission. In another possible implementation, the second RACH resource configuration or the characteristic combination indication information of the second RACH resource configuration is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission; that is, when the terminal device receives the second RACH resource configuration or the characteristic combination indication information of the second RACH resource configuration, it can determine that the second RACH resource configuration is used for the multiple PRACH transmission.

[0558] In some implementations, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access and / or RACH resource configuration information for two-step random access.

[0559] That is, as a possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access.

[0560] As another possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for two-step random access.

[0561] As another possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access and RACH resource configuration information for two-step random access.

[0562] Optionally, in response to the RACH configuration information for multi-PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes RACH resource configuration information for four-step random access, that is, the coverage enhancement feature combination does not include RACH resource configuration information for two-step random access.

[0563] In some implementations, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for contention-based random access (CBRA) and / or RACH resource configuration information for non-contention-based random access (CFRA).

[0564] That is, as a possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information of contention-based random access (CBRA).

[0565] As another possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information of non-contention-based random access CFRA.

[0566] As another possible implementation manner, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for contention-based random access (CBRA) and RACH resource configuration information for non-contention-based random access (CFRA).

[0567] In some implementations, the RACH configuration information for multiple PRACH transmissions includes at least one of the following indication information:

[0568] The number of times the multi-PRACH is transmitted;

[0569] Position indication information of multiple random access opportunities RO where the multiple PRACH transmissions are located;

[0570] multiple preamble indexes of the multiple PRACH transmissions;

[0571] The multiple synchronization signal block SSB indices of the multi-PRACH transmission.

[0572] Optionally, the RACH resource configuration information of the CFRA includes at least one of the following:

[0573] RACH resource configuration based on CFRA triggered by the physical downlink control channel instruction PDCCH order;

[0574] RACH resource configuration based on CFRA triggered by cell handover;

[0575] RACH resource configuration based on CFRA triggered by addition or change of primary and secondary cells;

[0576] RACH resource configuration for CFRA triggered by beam failure recovery (BFR).

[0577] Optionally, the RACH resource configuration information of the CBRA includes at least one of the following:

[0578] RACH resource configuration for CBRA triggered by beam failure recovery (BFR);

[0579] RACH resource configuration based on CBRA triggered by cell handover;

[0580] RACH resource configuration based on CBRA triggered by addition or change of primary and secondary cells.

[0581] In the embodiment of the present application, the RACH configuration information sent by the network device can determine the configuration resources of the multiple PRACH transmissions.

[0582] In some implementations, the configured resource for the multiple PRACH transmissions is at least one of the following:

[0583] Random access occasion RO shared with RACH configuration resources not used for multiple PRACH transmissions;

[0584] An independent random access opportunity RO is dedicated to the multiple PRACH transmissions.

[0585] The random access opportunity RO shared with the RACH configuration resources not used for multiple PRACH transmissions refers to: a RO shared by the RACH resources used for multiple PRACH transmissions and the RACH resources not used for multiple PRACH transmissions.

[0586] Optionally, in response to the configuration resource of the multiple PRACH transmission being a shared random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the shared random access opportunity RO:

[0587] Preamble received target power preambleReceivedTargetPower;

[0588] Power ramping step powerRampingStep;

[0589] The maximum number of preamble transmissions preambleTransMax;

[0590] Random access response window ra-ResponseWindow;

[0591] Random access synchronization signal block opportunity mask index ra-ssb-OccasionMaskIndex;

[0592] Reference signal received power threshold rsrp-ThresholdSSB-SUL;

[0593] Preamble start offset;

[0594] Number of preambles;

[0595] The number of times the multi-PRACH is transmitted.

[0596] Optionally, in response to the configuration resource for the multiple PRACH transmission being an independent random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the independent random access opportunity RO:

[0597] prach-ConfigurationIndex;

[0598] msg1-FDM;

[0599] msg1-FrequencyStart;

[0600] zeroCorrelationZoneConfig;

[0601] preambleReceivedTargetPower;

[0602] preambleTransMax;

[0603] powerRampingStep;

[0604] ra-ResponseWindow;

[0605] totalNumberOfRA-Preambles;

[0606] ssb-perRACH-OccasionAndCB-PreamblesPerSSB;

[0607] rsrp-ThresholdSSB-SUL;

[0608] ra-ContentionResolutionTimer;

[0609] prach-RootSequenceIndex;

[0610] msg1-SubcarrierSpacing;

[0611] restrictedSetConfig;

[0612] msg3-transformPrecoder;

[0613] ra-PrioritizationForAccessIdentity;

[0614] prach-RootSequenceIndex;

[0615] The number of times the multi-PRACH is transmitted.

[0616] It should be noted that, in the embodiments of the present application, the definitions of the above parameters may refer to the 3GPP technical specification TS38.331.

[0617] Optionally, the number of times the multi-PRACH is transmitted corresponds to the terminal device; or,

[0618] There is a corresponding relationship between the number of times the multiple PRACH transmissions are transmitted and the portion of the bandwidth where the multiple PRACH transmissions are located; or,

[0619] There is a corresponding relationship between the number of times the multiple PRACH transmission is performed and the RACH configuration information used for the multiple PRACH transmission.

[0620] That is, the number of multi-PRACH transmissions corresponding to each terminal device can be configured according to the terminal device, and different terminal devices can correspond to different transmission numbers; the number of multi-PRACH transmissions corresponding to the partial bandwidth BWP where the multi-PRACH transmission is located can also be configured according to the BWP, and the number of PRACH transmissions in different BWPs can be different; the number of multi-PRACH transmissions corresponding to the RACH configuration information can also be configured according to the RACH configuration information used for multi-PRACH transmission, and different RACH configuration information can correspond to different configurations of PRACH transmission numbers.

[0621] In the embodiment of the present application, the configuration resources determined by the RACH configuration information for multiple PRACH transmission can be used for multiple PRACH transmission.

[0622] In some implementations, the terminal device may map the multiple PRACH transmissions to a plurality of determined configuration resources according to a certain mapping rule for transmission.

[0623] In summary, by sending random access channel RACH configuration information for multiple PRACH transmissions to the terminal device, the RACH configuration information for multiple PRACH transmissions is used to determine the configuration resources for multiple PRACH transmissions, and the configuration resources are used for multiple PRACH transmissions, so that the terminal device can perform multiple PRACH transmissions in one random access attempt, thereby improving the coverage of the physical random access channel PRACH, effectively improving the success rate of random access of the terminal device, and improving the system communication efficiency.

[0624] Corresponding to the resource configuration methods provided in the above-mentioned embodiments, the present application also provides a resource configuration device. Since the resource configuration device provided in the embodiments of the present application corresponds to the methods provided in the above-mentioned embodiments, the implementation method of the resource configuration method is also applicable to the resource configuration device provided in the following embodiments and will not be described in detail in the following embodiments.

[0625] See Figure 8 , Figure 8 A schematic diagram of the structure of a resource configuration device provided in an embodiment of the present application.

[0626] like Figure 8 As shown, the resource configuration device 800 includes: a transceiver unit 810 and a processing unit 820, wherein:

[0627] The transceiver unit 810 is configured to receive random access channel (RACH) configuration information for multiple PRACH transmissions sent by a network device;

[0628] The processing unit 820 is configured to determine the configured resources for the multiple PRACH transmission according to the RACH configuration information for the multiple PRACH transmission;

[0629] The transceiver unit 810 is further configured to perform multiple PRACH transmissions on the configured resources.

[0630] Optionally, the RACH configuration information for multi-PRACH transmission includes at least one of the following:

[0631] A first RACH resource configuration, where the first RACH resource configuration is applicable to a terminal device supporting a feature combination of coverage enhancement;

[0632] a second RACH resource configuration, where the second RACH resource configuration is applicable to a terminal device supporting other feature combinations;

[0633] The third RACH resource configuration is applicable to a terminal device that does not support the feature combination.

[0634] Optionally, the configured resource for the multi-PRACH transmission is at least one of the following:

[0635] Random access occasion RO shared with RACH configuration resources not used for multiple PRACH transmissions;

[0636] An independent random access opportunity RO is dedicated to the multiple PRACH transmissions.

[0637] Optionally, in response to the configuration resource for the multiple PRACH transmission being a shared random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the shared random access opportunity RO:

[0638] Preamble received target power preambleReceivedTargetPower;

[0639] Power ramping step powerRampingStep;

[0640] The maximum number of preamble transmissions preambleTransMax;

[0641] Random access response window ra-ResponseWindow;

[0642] Random access synchronization signal block opportunity mask index ra-ssb-OccasionMaskIndex;

[0643] Reference signal received power threshold rsrp-ThresholdSSB-SUL;

[0644] Preamble start offset;

[0645] Number of preambles;

[0646] The number of times the multi-PRACH is transmitted.

[0647] Optionally, in response to the configuration resource for the multiple PRACH transmission being an independent random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the independent random access opportunity RO:

[0648] prach-ConfigurationIndex;

[0649] msg1-FDM;

[0650] msg1-FrequencyStart;

[0651] zeroCorrelationZoneConfig;

[0652] preambleReceivedTargetPower;

[0653] preambleTransMax;

[0654] powerRampingStep;

[0655] ra-ResponseWindow;

[0656] totalNumberOfRA-Preambles;

[0657] ssb-perRACH-OccasionAndCB-PreamblesPerSSB;

[0658] rsrp-ThresholdSSB-SUL;

[0659] ra-ContentionResolutionTimer;

[0660] prach-RootSequenceIndex;

[0661] msg1-SubcarrierSpacing;

[0662] restrictedSetConfig;

[0663] msg3-transformPrecoder;

[0664] ra-PrioritizationForAccessIdentity;

[0665] prach-RootSequenceIndex;

[0666] The number of times the multi-PRACH is transmitted.

[0667] Optionally, the number of times the multi-PRACH is transmitted corresponds to the terminal device; or,

[0668] There is a corresponding relationship between the number of times the multiple PRACH transmissions are transmitted and the portion of the bandwidth where the multiple PRACH transmissions are located; or,

[0669] There is a corresponding relationship between the number of times the multiple PRACH transmission is performed and the RACH configuration information used for the multiple PRACH transmission.

[0670] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes first indication information, and the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission.

[0671] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the second RACH resource configuration, the characteristic combination indication information in the second RACH resource configuration includes second indication information, and the second indication information is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission.

[0672] Optionally, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access and / or RACH resource configuration information for two-step random access.

[0673] Optionally, in response to the RACH configuration information for multi-PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes RACH resource configuration information for four-step random access.

[0674] Optionally, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information of contention-based random access CBRA and / or RACH resource configuration information of non-contention-based random access CFRA.

[0675] Optionally, the RACH configuration information for multiple PRACH transmission includes at least one of the following indication information:

[0676] The number of times the multi-PRACH is transmitted;

[0677] Position indication information of multiple random access opportunities RO where the multiple PRACH transmissions are located;

[0678] multiple preamble indexes of the multiple PRACH transmissions;

[0679] The multiple synchronization signal block SSB indices of the multi-PRACH transmission.

[0680] Optionally, the RACH resource configuration information of the CFRA includes at least one of the following:

[0681] RACH resource configuration based on CFRA triggered by the physical downlink control channel instruction PDCCH order;

[0682] RACH resource configuration based on CFRA triggered by cell handover;

[0683] RACH resource configuration based on CFRA triggered by addition or change of primary and secondary cells;

[0684] RACH resource configuration for CFRA triggered by beam failure recovery (BFR).

[0685] Optionally, the RACH resource configuration information of the CBRA includes at least one of the following:

[0686] RACH resource configuration for CBRA triggered by beam failure recovery (BFR);

[0687] RACH resource configuration based on CBRA triggered by cell handover;

[0688] RACH resource configuration based on CBRA triggered by addition or change of primary and secondary cells.

[0689] The resource configuration device of this embodiment can receive random access channel RACH configuration information for multiple PRACH transmissions sent by a network device, determine the configuration resources for multiple PRACH transmissions based on the RACH configuration information for multiple PRACH transmissions, and perform multiple PRACH transmissions on the configuration resources, so that the terminal device can perform multiple PRACH transmissions in one random access attempt, thereby improving the coverage of the physical random access channel PRACH, effectively improving the success rate of random access of the terminal device, and improving the communication efficiency of the system.

[0690] See Figure 9 , Figure 9 A schematic diagram of the structure of a resource configuration device provided in an embodiment of the present application.

[0691] like Figure 9 As shown, the resource configuration device 900 includes: a transceiver unit 910, wherein:

[0692] The transceiver unit 910 is configured to send random access channel (RACH) configuration information for multiple PRACH transmissions to a terminal device;

[0693] The RACH configuration information for multiple PRACH transmissions is used to determine the configuration resources for the multiple PRACH transmissions;

[0694] The configured resources are used for multiple PRACH transmissions.

[0695] Optionally, the RACH configuration information for multi-PRACH transmission includes at least one of the following:

[0696] A first RACH resource configuration, where the first RACH resource configuration is applicable to a terminal device supporting a feature combination of coverage enhancement;

[0697] a second RACH resource configuration, where the second RACH resource configuration is applicable to a terminal device supporting other feature combinations;

[0698] The third RACH resource configuration is applicable to a terminal device that does not support the feature combination.

[0699] Optionally, the configured resource for the multi-PRACH transmission is at least one of the following:

[0700] Random access occasion RO shared with RACH configuration resources not used for multiple PRACH transmissions;

[0701] An independent random access opportunity RO is dedicated to the multiple PRACH transmissions.

[0702] Optionally, in response to the configuration resource for the multiple PRACH transmission being a shared random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the shared random access opportunity RO:

[0703] Preamble received target power preambleReceivedTargetPower;

[0704] Power ramping step powerRampingStep;

[0705] The maximum number of preamble transmissions preambleTransMax;

[0706] Random access response window ra-ResponseWindow;

[0707] Random access synchronization signal block opportunity mask index ra-ssb-OccasionMaskIndex;

[0708] Reference signal received power threshold rsrp-ThresholdSSB-SUL;

[0709] Preamble start offset;

[0710] Number of preambles;

[0711] The number of times the multi-PRACH is transmitted.

[0712] Optionally, in response to the configuration resource for the multiple PRACH transmission being an independent random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the independent random access opportunity RO:

[0713] prach-ConfigurationIndex;

[0714] msg1-FDM;

[0715] msg1-FrequencyStart;

[0716] zeroCorrelationZoneConfig;

[0717] preambleReceivedTargetPower;

[0718] preambleTransMax;

[0719] powerRampingStep;

[0720] ra-ResponseWindow;

[0721] totalNumberOfRA-Preambles;

[0722] ssb-perRACH-OccasionAndCB-PreamblesPerSSB;

[0723] rsrp-ThresholdSSB-SUL;

[0724] ra-ContentionResolutionTimer;

[0725] prach-RootSequenceIndex;

[0726] msg1-SubcarrierSpacing;

[0727] restrictedSetConfig;

[0728] msg3-transformPrecoder;

[0729] ra-PrioritizationForAccessIdentity;

[0730] prach-RootSequenceIndex;

[0731] The number of times the multi-PRACH is transmitted.

[0732] Optionally, the number of times the multi-PRACH is transmitted corresponds to the terminal device; or,

[0733] There is a corresponding relationship between the number of times the multiple PRACH transmissions are transmitted and the portion of the bandwidth where the multiple PRACH transmissions are located; or,

[0734] There is a corresponding relationship between the number of times the multiple PRACH transmission is performed and the RACH configuration information used for the multiple PRACH transmission.

[0735] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes first indication information, and the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmission.

[0736] Optionally, in response to the RACH configuration information for multiple PRACH transmission including the second RACH resource configuration, the characteristic combination indication information in the second RACH resource configuration includes second indication information, and the second indication information is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmission.

[0737] Optionally, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information for four-step random access and / or RACH resource configuration information for two-step random access.

[0738] Optionally, in response to the RACH configuration information for multi-PRACH transmission including the first RACH resource configuration, the first RACH resource configuration includes RACH resource configuration information for four-step random access.

[0739] Optionally, the RACH configuration information for multi-PRACH transmission includes: RACH resource configuration information of contention-based random access CBRA and / or RACH resource configuration information of non-contention-based random access CFRA.

[0740] Optionally, the RACH configuration information for multiple PRACH transmission includes at least one of the following indication information:

[0741] The number of times the multi-PRACH is transmitted;

[0742] Position indication information of multiple random access opportunities RO where the multiple PRACH transmissions are located;

[0743] multiple preamble indexes of the multiple PRACH transmissions;

[0744] The multiple synchronization signal block SSB indices of the multi-PRACH transmission.

[0745] Optionally, the RACH resource configuration information of the CFRA includes at least one of the following:

[0746] RACH resource configuration based on CFRA triggered by the physical downlink control channel instruction PDCCH order;

[0747] RACH resource configuration based on CFRA triggered by cell handover;

[0748] RACH resource configuration based on CFRA triggered by addition or change of primary and secondary cells;

[0749] RACH resource configuration for CFRA triggered by beam failure recovery (BFR).

[0750] Optionally, the RACH resource configuration information of the CBRA includes at least one of the following:

[0751] RACH resource configuration for CBRA triggered by beam failure recovery (BFR);

[0752] RACH resource configuration based on CBRA triggered by cell handover;

[0753] RACH resource configuration based on CBRA triggered by addition or change of primary and secondary cells.

[0754] The resource configuration device of this embodiment can send random access channel RACH configuration information for multiple PRACH transmissions to the terminal device. The RACH configuration information for multiple PRACH transmissions is used to determine the configuration resources for multiple PRACH transmissions. The configuration resources are used for multiple PRACH transmissions, so that the terminal device can perform multiple PRACH transmissions in one random access attempt, thereby improving the coverage of the physical random access channel PRACH, effectively improving the success rate of random access of the terminal device, and improving the system communication efficiency.

[0755] In order to implement the above embodiment, the embodiment of the present application further proposes a communication device, comprising: a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to enable the device to perform Figures 2 to 6 The method shown in the embodiment.

[0756] In order to implement the above embodiment, the embodiment of the present application further proposes a communication device, comprising: a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to enable the device to perform Figure 7 The method shown in the embodiment.

[0757] In order to implement the above embodiment, the embodiment of the present application also proposes a communication device, comprising: a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, the processor is used to run the code instructions to execute Figures 2 to 6 The method shown in the embodiment.

[0758] In order to implement the above embodiment, the embodiment of the present application also proposes a communication device, comprising: a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, the processor is used to run the code instructions to execute Figure 7 The method shown in the embodiment.

[0759] See Figure 10 , Figure 10 This is a schematic diagram of the structure of another resource configuration device provided in an embodiment of the present application. Resource configuration device 1000 can be a network device or a terminal device, or a chip, chip system, or processor that supports the network device in implementing the above-mentioned method, or a chip, chip system, or processor that supports the terminal device in implementing the above-mentioned method. This device can be used to implement the method described in the above-mentioned method embodiment. For details, please refer to the description of the above-mentioned method embodiment.

[0760] Resource configuration apparatus 1000 may include one or more processors 1001. Processor 1001 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit (CPU). The baseband processor may be used to process communication protocols and communication data, while the CPU may be used to control resource configuration apparatuses (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs), execute computer programs, and process computer program data.

[0761] Optionally, the resource configuration apparatus 1000 may further include one or more memories 1002, on which a computer program 1003 may be stored. The processor 1001 executes the computer program 1003, so that the resource configuration apparatus 1000 performs the method described in the above method embodiment. The computer program 1003 may be fixed in the processor 1001. In this case, the processor 1001 may be implemented by hardware.

[0762] Optionally, data may also be stored in the memory 1002. The resource configuration device 1000 and the memory 1002 may be provided separately or integrated together.

[0763] Optionally, resource configuration apparatus 1000 may further include a transceiver 1005 and an antenna 1006. Transceiver 1005 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, and is configured to implement transceiver functions. Transceiver 1005 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, and is configured to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, and is configured to implement a transmitting function.

[0764] Optionally, the resource configuration apparatus 1000 may further include one or more interface circuits 1007. The interface circuit 1007 is configured to receive code instructions and transmit the instructions to the processor 1001. The processor 1001 executes the code instructions to enable the resource configuration apparatus 1000 to perform the method described in the above method embodiment.

[0765] In one implementation, processor 1001 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and transmitting functions may be separate or integrated. The transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or may be used for transmitting or delivering signals.

[0766] In one implementation, the resource configuration device 1000 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiments. The processor and transceiver described in this application can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0767] The resource configuration device described in the above embodiments may be a network device or a terminal device, but the scope of the resource configuration device described in this application is not limited thereto, and the structure of the resource configuration device may not be limited thereto. Figure 8-Figure 9 The resource configuration device may be an independent device or may be part of a larger device. For example, the resource configuration device may be:

[0768] (1) An independent integrated circuit (IC), or chip, or chip system or subsystem;

[0769] (2) a collection of one or more ICs, optionally including a storage component for storing data and computer programs;

[0770] (3) ASIC, such as modem;

[0771] (4) Modules that can be embedded in other devices;

[0772] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0773] (6)Others, etc.

[0774] For the case where the resource configuration device can be a chip or a chip system, see Figure 11 Schematic diagram of the chip structure shown. Figure 11 The chip shown includes a processor 1101 and an interface 1102. There may be one or more processors 1101 and there may be more than one interface 1102.

[0775] For the case where the chip is used to implement the functions of the network device in the embodiment of the present application:

[0776] Interface 1102, used for transmitting code instructions to the processor;

[0777] Processor 1101 is used to execute code instructions to perform the following Figures 2 to 6 method.

[0778] For the case where the chip is used to implement the functions of the terminal device in the embodiments of the present application:

[0779] Interface 1102, used for transmitting code instructions to the processor;

[0780] Processor 1101 is used to execute code instructions to perform the following Figure 7 method.

[0781] Optionally, the chip further includes a memory 1103, which is used to store necessary computer programs and data.

[0782] Those skilled in the art will also appreciate that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the functions for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present application.

[0783] The embodiment of the present application also provides a communication system, which includes the aforementioned Figure 8-Figure 9 In the embodiment, the resource configuration device as the terminal device and the resource configuration device as the network device, or the system includes the aforementioned Figure 10 In the embodiment, the resource configuration device is used as a terminal device and the resource configuration device is used as a network device.

[0784] The present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

[0785] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0786] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. Available media may be magnetic media (eg, floppy disks, hard disks, tapes), optical media (eg, high-density digital video discs (DVDs)), or semiconductor media (eg, solid state disks (SSDs)).

[0787] Those skilled in the art will understand that the various numerical numbers such as first and second involved in this application are only for the convenience of description and are not used to limit the scope of the embodiments of this application, and also indicate the order of precedence.

[0788] In this application, at least one can also be described as one or more, and multiple can be two, three, four or more, which is not limited in this application. In the embodiments of this application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", and there is no order of precedence or size between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0789] The correspondences shown in the tables in this application can be configured or predefined. The values ​​of the information in each table are examples only and can be configured to other values, which are not limited by this application. When configuring the correspondence between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables in this application, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values ​​or representations of the parameters can also use other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.

[0790] The predefined in this application may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0791] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0792] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0793] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the embodiments of the present application can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in the present invention can be achieved, and this document is not limited here.

[0794] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A resource configuration method, characterized in that: The method is executed by a terminal device, and includes: Receiving random access channel (RACH) configuration information for multiple PRACH transmissions sent by a network device; the RACH configuration information for multiple PRACH transmissions includes a first RACH resource configuration, where the first RACH resource configuration is applicable to a terminal device supporting a feature combination with coverage enhancement; the first RACH resource configuration includes first indication information and RACH resource configuration information for four-step random access, where the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmissions; wherein the RACH resource configuration for the feature combination with coverage enhancement supporting multiple PRACH transmissions includes only RACH resource configuration information for four-step random access, and does not include RACH resource configuration information for two-step random access; Determining, according to the RACH configuration information for the multiple PRACH transmission, a configuration resource for the multiple PRACH transmission; wherein the configuration resource for the multiple PRACH transmission is at least one of the following: a random access opportunity (RO) shared with a RACH configuration resource not used for the multiple PRACH transmission; an independent random access opportunity (RO) dedicated to the multiple PRACH transmission; Perform multiple PRACH transmissions on the configured resources.

2. The method according to claim 1, characterized in that The RACH configuration information for multiple PRACH transmissions further includes at least one of the following: a second RACH resource configuration, where the second RACH resource configuration is applicable to a terminal device supporting other feature combinations; The third RACH resource configuration is applicable to a terminal device that does not support the feature combination.

3. The method according to claim 1, characterized in that In response to the configuration resource of the multiple PRACH transmission being a shared random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the shared random access opportunity RO: Preamble received target power preambleReceivedTargetPower; Power ramping step powerRampingStep; The maximum number of preamble transmissions preambleTransMax; Random access response window ra-ResponseWindow; Random access synchronization signal block opportunity mask index ra-ssb-OccasionMaskIndex; Reference signal received power threshold rsrp-ThresholdSSB-SUL; Preamble start offset; Number of preambles; The number of times the multi-PRACH is transmitted.

4. The method according to claim 1, wherein In response to the configuration resource of the multiple PRACH transmission being an independent random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the independent random access opportunity RO: prach-ConfigurationIndex; msg1-FDM; msg1-FrequencyStart; zeroCorrelationZoneConfig; preambleReceivedTargetPower; preambleTransMax; powerRampingStep; ra-ResponseWindow; totalNumberOfRA-Preambles; ssb-perRACH-OccasionAndCB-PreamblesPerSSB; rsrp-ThresholdSSB-SUL; ra-ContentionResolutionTimer; prach-RootSequenceIndex; msg1-SubcarrierSpacing; restrictedSetConfig; msg3-transformPrecoder; ra-PrioritizationForAccessIdentity; prach-RootSequenceIndex; The number of times the multi-PRACH is transmitted.

5. The method according to claim 3 or 4, characterized in that There is a corresponding relationship between the number of multiple PRACH transmissions and the terminal device; or, There is a corresponding relationship between the number of multiple PRACH transmissions and the portion of bandwidth where the multiple PRACH transmissions are located; or, There is a corresponding relationship between the number of times the multiple PRACH transmissions are performed and the RACH configuration information used for the multiple PRACH transmissions.

6. The method according to claim 2, characterized in that In response to the RACH configuration information for multiple PRACH transmissions including the second RACH resource configuration, the characteristic combination indication information in the second RACH resource configuration includes second indication information, where the second indication information is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmissions.

7. The method according to claim 2, characterized in that The RACH configuration information used for multi-PRACH transmission includes: RACH resource configuration information for four-step random access and / or RACH resource configuration information for two-step random access.

8. The method according to claim 2, characterized in that The RACH configuration information used for multi-PRACH transmission includes: RACH resource configuration information of contention-based random access (CBRA) and / or RACH resource configuration information of non-contention-based random access (CFRA).

9. The method according to claim 8, characterized in that The RACH configuration information for multiple PRACH transmission includes at least one of the following indication information: the number of multi-PRACH transmissions; Position indication information of multiple random access opportunities RO where the multiple PRACH transmissions are located; multiple preamble indexes of the multiple PRACH transmissions; The multiple synchronization signal block SSB indexes of the multiple PRACH transmissions.

10. The method according to claim 8, characterized in that The RACH resource configuration information of the CFRA includes at least one of the following: RACH resource configuration based on CFRA triggered by the physical downlink control channel instruction PDCCH order; RACH resource configuration based on CFRA triggered by cell handover; RACH resource configuration based on CFRA triggered by addition or change of primary and secondary cells; RACH resource configuration for CFRA triggered by beam failure recovery (BFR).

11. The method according to claim 8, characterized in that The RACH resource configuration information of the CBRA includes at least one of the following: RACH resource configuration for CBRA triggered by beam failure recovery (BFR); RACH resource configuration based on CBRA triggered by cell handover; RACH resource configuration based on CBRA triggered by addition or change of primary and secondary cells.

12. A resource allocation method, characterized in that: The method is performed by a network device, and includes: Sending random access channel (RACH) configuration information for multiple PRACH transmissions to a terminal device; the RACH configuration information for multiple PRACH transmissions includes a first RACH resource configuration, where the first RACH resource configuration is applicable to a terminal device supporting a feature combination with coverage enhancement; the first RACH resource configuration includes first indication information and RACH resource configuration information for four-step random access, where the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmissions; wherein the RACH resource configuration for the feature combination with coverage enhancement supporting multiple PRACH transmissions includes only RACH resource configuration information for four-step random access, and does not include RACH resource configuration information for two-step random access; The RACH configuration information for multiple PRACH transmission is used to determine the configuration resources for the multiple PRACH transmission; wherein the configuration resources for the multiple PRACH transmission are at least one of the following: a random access opportunity (RO) shared with a RACH configuration resource not used for multiple PRACH transmission; an independent random access opportunity (RO) dedicated to the multiple PRACH transmission; The configured resources are used for performing multiple PRACH transmissions.

13. The method according to claim 12, characterized in that The RACH configuration information for multiple PRACH transmissions further includes at least one of the following: a second RACH resource configuration, where the second RACH resource configuration is applicable to a terminal device supporting other feature combinations; The third RACH resource configuration is applicable to a terminal device that does not support the feature combination.

14. The method according to claim 12, characterized in that In response to the configuration resource of the multiple PRACH transmission being a shared random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the shared random access opportunity RO: Preamble received target power preambleReceivedTargetPower; Power ramping step powerRampingStep; The maximum number of preamble transmissions preambleTransMax; Random access response window ra-ResponseWindow; Random access synchronization signal block opportunity mask index ra-ssb-OccasionMaskIndex; Reference signal received power threshold rsrp-ThresholdSSB-SUL; Preamble start offset; Number of preambles; The number of times the multi-PRACH is transmitted.

15. The method according to claim 12, characterized in that In response to the configuration resource of the multiple PRACH transmission being an independent random access opportunity RO, the RACH configuration information for the multiple PRACH transmission is used to configure at least one of the following parameters of the independent random access opportunity RO: prach-ConfigurationIndex; msg1-FDM; msg1-FrequencyStart; zeroCorrelationZoneConfig; preambleReceivedTargetPower; preambleTransMax; powerRampingStep; ra-ResponseWindow; totalNumberOfRA-Preambles; ssb-perRACH-OccasionAndCB-PreamblesPerSSB; rsrp-ThresholdSSB-SUL; ra-ContentionResolutionTimer; prach-RootSequenceIndex; msg1-SubcarrierSpacing; restrictedSetConfig; msg3-transformPrecoder; ra-PrioritizationForAccessIdentity; prach-RootSequenceIndex; The number of times the multi-PRACH is transmitted.

16. The method according to claim 14 or 15, characterized in that There is a corresponding relationship between the number of multiple PRACH transmissions and the terminal device; or, There is a corresponding relationship between the number of multiple PRACH transmissions and the portion of bandwidth where the multiple PRACH transmissions are located; or, There is a corresponding relationship between the number of times the multiple PRACH transmissions are performed and the RACH configuration information used for the multiple PRACH transmissions.

17. The method according to claim 13, wherein In response to the RACH configuration information for multiple PRACH transmissions including the second RACH resource configuration, the characteristic combination indication information in the second RACH resource configuration includes second indication information, where the second indication information is used to indicate that the second RACH resource configuration is used for the multiple PRACH transmissions.

18. The method according to claim 13, characterized in that The RACH configuration information used for multi-PRACH transmission includes: RACH resource configuration information for four-step random access and / or RACH resource configuration information for two-step random access.

19. The method according to claim 13, wherein The RACH configuration information used for multi-PRACH transmission includes: RACH resource configuration information of contention-based random access (CBRA) and / or RACH resource configuration information of non-contention-based random access (CFRA).

20. The method according to claim 19, wherein The RACH configuration information for multiple PRACH transmission includes at least one of the following indication information: the number of multi-PRACH transmissions; Position indication information of multiple random access opportunities RO where the multiple PRACH transmissions are located; multiple preamble indexes of the multiple PRACH transmissions; The multiple synchronization signal block SSB indexes of the multiple PRACH transmissions.

21. The method according to claim 19, wherein The RACH resource configuration information of the CFRA includes at least one of the following: RACH resource configuration based on CFRA triggered by the physical downlink control channel instruction PDCCH order; RACH resource configuration based on CFRA triggered by cell handover; RACH resource configuration based on CFRA triggered by addition or change of primary and secondary cells; RACH resource configuration for CFRA triggered by beam failure recovery (BFR).

22. The method according to claim 19, wherein The RACH resource configuration information of the CBRA includes at least one of the following: RACH resource configuration for CBRA triggered by beam failure recovery (BFR); RACH resource configuration based on CBRA triggered by cell handover; RACH resource configuration based on CBRA triggered by addition or change of primary and secondary cells.

23. A resource allocation device, characterized in that: The device is applied to a terminal device, and includes: A transceiver unit, configured to receive random access channel (RACH) configuration information for multiple PRACH transmissions sent by a network device; the RACH configuration information for multiple PRACH transmissions includes a first RACH resource configuration, where the first RACH resource configuration is applicable to a terminal device supporting a feature combination with coverage enhancement; the first RACH resource configuration includes first indication information and RACH resource configuration information for four-step random access, where the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmissions; wherein the RACH resource configuration for the feature combination with coverage enhancement supporting multiple PRACH transmissions includes only RACH resource configuration information for four-step random access, and does not include RACH resource configuration information for two-step random access; a processing unit, configured to determine, based on the RACH configuration information for the multiple PRACH transmission, a configuration resource for the multiple PRACH transmission; wherein the configuration resource for the multiple PRACH transmission is at least one of the following: a random access opportunity (RO) shared with a RACH configuration resource not used for the multiple PRACH transmission; and an independent random access opportunity (RO) dedicated to the multiple PRACH transmission; The transceiver unit is further configured to perform multiple PRACH transmissions on the configured resources.

24. A resource allocation device, characterized in that: The device is applied to a network device, and includes: A transceiver unit, configured to send random access channel (RACH) configuration information for multiple PRACH transmissions to a terminal device; the RACH configuration information for multiple PRACH transmissions includes a first RACH resource configuration, where the first RACH resource configuration is applicable to a terminal device supporting a feature combination with coverage enhancement; the first RACH resource configuration includes first indication information and RACH resource configuration information for four-step random access, where the first indication information is used to indicate that the first RACH resource configuration is used for the multiple PRACH transmissions; wherein the RACH resource configuration for the feature combination with coverage enhancement supporting multiple PRACH transmissions includes only RACH resource configuration information for four-step random access, and does not include RACH resource configuration information for two-step random access; The RACH configuration information for multiple PRACH transmission is used to determine the configuration resources for the multiple PRACH transmission; wherein the configuration resources for the multiple PRACH transmission are at least one of the following: a random access opportunity (RO) shared with a RACH configuration resource not used for multiple PRACH transmission; an independent random access opportunity (RO) dedicated to the multiple PRACH transmission; The configured resources are used for performing multiple PRACH transmissions.

25. A communication device, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device performs the method according to any one of claims 1 to 11.

26. A communication device, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to enable the device to perform the method according to any one of claims 12 to 22.

27. A communication device, characterized in that: include: processor and interface circuits; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method according to any one of claims 1 to 11.

28. A communication device, characterized in that: include: processor and interface circuits; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method according to any one of claims 12 to 22.

29. A computer-readable storage medium storing instructions, which, when executed, enable the method according to any one of claims 1 to 11 to be implemented.

30. A computer-readable storage medium storing instructions, which, when executed, enable the method according to any one of claims 12 to 22 to be implemented.

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