Communication methods, terminal, network device and storage medium
Patent Information
- Application Number
- PCT/CN2024/089224
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-03-27
- Filing Date
- 2024-04-22
- Publication Date
- 2025-10-02
Smart Images
Figure CN2024089224_02102025_PF_FP_ABST
Abstract
Description
Communication method, terminal, network device and storage medium
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This disclosure is based on PCT patent application number PCT / CN2024 / 084217, filed on March 27, 2024.
[0003] and claims the benefit of priority from that PCT patent application, the entire contents of which are incorporated herein by reference into this disclosure. Technical Field
[0004] The present disclosure relates to the field of communication technology, and in particular to a communication method, a terminal, a network device, and a storage medium. Background Art
[0005] In wireless communication technology, there are downlink (DL) symbols, uplink (UL) symbols, flexible (F) symbols, and subband full-duplex (SBFD) symbols. A symbol that includes both DL and UL subbands in the frequency domain is called an SBFD symbol. Similarly, a timeslot containing multiple symbols that includes at least one SBFD symbol is called an SBFD timeslot. For SBFD timeslots, terminals that can recognize SBFD symbol configurations have been introduced.
[0006] Summary of the Invention
[0007] After the introduction of terminals that can recognize SBFD symbol configuration, it is necessary to clarify the random access channel (RACH) resources used by different types of terminals.
[0008] The embodiments of the present disclosure disclose a communication method, a terminal, a network device, and a storage medium.
[0009] According to a first aspect of an embodiment of the present disclosure, a communication method is provided, where the method is performed by a first type terminal, and the method includes:
[0010] receiving first information sent by a network device;
[0011] The first information is used to indicate one of the following:
[0012] A first random access channel RACH resource for random access RA of a first type of terminal and a second type of terminal;
[0013] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
[0014] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, the method being performed by a network device, the method comprising:
[0015] Sending first information to the terminal;
[0016] The first information is used to indicate one of the following:
[0017] A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal;
[0018] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
[0019] According to a third aspect of an embodiment of the present disclosure, a communication method is provided, where the method is performed by a communication system, and the method includes:
[0020] The network device sends first information to the terminal;
[0021] The first information is used to indicate one of the following:
[0022] A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal;
[0023] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
[0024] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, comprising:
[0025] The transceiver module is configured as follows:
[0026] receiving first information sent by a network device;
[0027] The first information is used to indicate one of the following:
[0028] A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal;
[0029] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
[0030] According to a fifth aspect of an embodiment of the present disclosure, a network device is provided, the network device including:
[0031] The transceiver module is configured as follows:
[0032] Sending first information to the terminal;
[0033] The first information is used to indicate one of the following:
[0034] A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal;
[0035] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
[0036] According to the sixth aspect of an embodiment of the present disclosure, a communication system is provided, which includes a terminal and a network device; the terminal is configured to implement any communication method implemented by the terminal, and the network device is configured to implement any communication method implemented by the network device.
[0037] According to a seventh aspect of an embodiment of the present disclosure, a terminal is provided, comprising:
[0038] one or more processors;
[0039] The terminal is used to execute any communication method implemented by the terminal.
[0040] According to an eighth aspect of an embodiment of the present disclosure, a network device is provided, wherein the network device includes:
[0041] one or more processors;
[0042] Wherein, the network device is used to implement any communication method implemented by the network device.
[0043] According to a ninth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the communication method provided by the first aspect or the second aspect.
[0044] The technical solution provided by the present disclosure clarifies the use of RACH resources.
[0045] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0046] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.
[0047] FIG1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;
[0048] FIG1b is a schematic diagram showing a time-frequency resource according to an exemplary embodiment;
[0049] FIG1c is a schematic diagram showing a time-frequency resource according to an exemplary embodiment;
[0050] FIG1d is a schematic diagram showing a time-frequency resource according to an exemplary embodiment;
[0051] FIG1e is a schematic diagram showing a time-frequency resource according to an exemplary embodiment;
[0052] FIG2a is a schematic flow chart showing a communication method according to an exemplary embodiment;
[0053] FIG3a is a schematic flow chart showing a communication method according to an exemplary embodiment;
[0054] FIG3 b is a schematic flow chart showing a communication method according to an exemplary embodiment;
[0055] FIG4a is a schematic flow chart showing a communication method according to an exemplary embodiment;
[0056] FIG4b is a schematic flow chart showing a communication method according to an exemplary embodiment;
[0057] FIG5a is a schematic flow chart showing a communication method according to an exemplary embodiment;
[0058] FIG6a is a schematic diagram showing a time-frequency resource according to an exemplary embodiment;
[0059] FIG6b is a schematic diagram showing a time-frequency resource according to an exemplary embodiment;
[0060] FIG6c is a schematic diagram showing a time-frequency resource according to an exemplary embodiment;
[0061] FIG6 d is a schematic flow chart showing a communication method according to an exemplary embodiment;
[0062] FIG7a is a schematic structural diagram of a terminal according to an exemplary embodiment;
[0063] FIG7b is a schematic structural diagram of a network device according to an exemplary embodiment;
[0064] FIG8a is a schematic structural diagram of a UE according to an exemplary embodiment;
[0065] Fig. 8b is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION
[0066] Embodiments of the present disclosure provide a communication method, a terminal, a network device, and a storage medium.
[0067] In a first aspect, an embodiment of the present disclosure provides a communication method, which is performed by a first type of terminal, and includes:
[0068] receiving first information sent by a network device;
[0069] The first information is used to indicate one of the following:
[0070] A first random access channel RACH resource for random access RA of a first type of terminal and a second type of terminal;
[0071] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
[0072] In the above embodiment, the network device can jointly configure the first random access channel RACH resources of the random access RA of the first type terminal and the second type terminal through the first information, and can also separately configure the second RACH resources for RA of the second type terminal and the third RACH resources for RA of the first type terminal through the first information. In this way, the RACH resources used after the introduction of the first type terminal are clarified, and the reliability of resource utilization is improved.
[0073] In combination with the embodiments of the first aspect, in some embodiments, the first type of terminal is a terminal that can recognize sub-band full-duplex (SBFD) time-frequency configuration; and the second type of terminal is a terminal that cannot recognize SBFD time-frequency configuration.
[0074] In the above embodiment, the RACH resources used by the first type of terminals that can identify the sub-band full-duplex SBFD time-frequency configuration and the second type of terminals that cannot identify the SBFD time-frequency configuration are clarified, thereby improving the reliability of resource use.
[0075] In combination with the embodiments of the first aspect, in some embodiments, the first RACH resource includes a first type of random access opportunity RO and / or a second type of random access opportunity RO; or, the second RACH resource includes a second type of RO, and the third RACH resource includes a first type of RO and / or a second type of RO; wherein the first type of RO is an RO including a first type of sub-band full-duplex SBFD time unit; and the second type of RO is an RO that does not include a first type of SBFD time unit.
[0076] In the above embodiment, different types of ROs in the first RACH resource, the second RACH resource and / or the third RACH resource can be flexibly configured.
[0077] In conjunction with the embodiments of the first aspect, in some embodiments, the first information is used to indicate the first RACH resource; and the method further includes:
[0078] It is determined whether the first RACH resource includes or does not include a first type of RO.
[0079] In the above embodiment, the first type of terminal may clearly determine whether the first RACH resource includes the first type of RO.
[0080] In conjunction with the embodiments of the first aspect, in some embodiments, the first-type SBFD time unit is one of the following:
[0081] The time unit configured as the downlink (DL) by the time division duplex (TDD) uplink and downlink common configuration (TDD-UL-DL-ConfigCommon) is also configured as the SBFD time unit.
[0082] The time unit is configured by TDD-UL-DL-ConfigCommon as a DL time unit or a flexible time unit and is configured as a SBFD time unit.
[0083] In conjunction with the embodiments of the first aspect, in some embodiments, the condition that the first RACH resource includes the first type RO includes at least one of the following:
[0084] The first configuration information includes a first mapping criterion and a second mapping criterion, the first mapping criterion and the second mapping criterion are different, the first mapping criterion is a mapping criterion between the first type RO and the synchronization signal block SSB, and the second mapping criterion is a mapping criterion between the second type RO and the SSB;
[0085] The first configuration information includes first resource configuration information and second resource configuration information, the first resource configuration information and the second resource configuration information are different, the first resource configuration information is the time domain and / or frequency domain configuration information of the first type of RO, and the second resource configuration information is the time domain and / or frequency domain configuration information of the second type of RO;
[0086] The first configuration information includes first preamble format configuration information and second preamble format configuration information, the first preamble format configuration information and the second preamble format configuration information are different, the first preamble format configuration information is the Preamble format information of the first type RO, and the second preamble format configuration is the Preamble format information of the second type RO.
[0087] In the above embodiment, whether the first RACH resource includes the first type of RO may be determined based on different conditions.
[0088] In combination with the embodiments of the first aspect, in some embodiments, the first configuration information indicates whether the first RACH resource includes or does not include the first type of RO.
[0089] In the above embodiment, the first configuration information may be used to directly indicate whether the first RACH resource includes or does not include the first type of RO.
[0090] In conjunction with the embodiments of the first aspect, in some embodiments, the first information is used to indicate the first RACH resource; and the method further includes:
[0091] Determining an RO used by the first type of terminal;
[0092] The RO is the RO in the first RACH resource.
[0093] In the above embodiment, the first type of terminal can determine the available RO.
[0094] In conjunction with the embodiments of the first aspect, in some embodiments, determining the RO used by the first type of terminal includes:
[0095] The RO used by the first type of terminal is determined based on a magnitude relationship between the wireless transmission quality of the received SSB and a first threshold.
[0096] In the above embodiment, the RO used by the first type of terminal may be determined based on the quality of wireless transmission.
[0097] In conjunction with the embodiments of the first aspect, in some embodiments, determining the RO used by the first type of terminal based on the relationship between the wireless transmission quality of the received SSB and the first threshold includes at least one of the following:
[0098] Determining that the wireless transmission quality of all received SSBs is less than the first threshold, and determining that the RO to be used is the second type RO;
[0099] Determining that the wireless transmission quality of at least one received SSB is not less than the first threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO;
[0100] Determine that the wireless transmission quality of at least one received SSB is not less than the first threshold, and determine, based on protocol information, high-layer configuration information, or dynamic indication information, whether the RO to be used is a first-category RO or a second-category RO.
[0101] In the above embodiment, different ROs to be used may be determined based on different wireless transmission qualities.
[0102] In conjunction with the embodiments of the first aspect, in some embodiments, determining the RO used by the first type of terminal includes at least one of the following:
[0103] Determining, based on protocol information, high-layer configuration information, or dynamic indication information, that the RO to be used is a second-category RO;
[0104] Determining, based on protocol information, high-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO;
[0105] Based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO to be used is a first type RO or a second type RO.
[0106] In the above embodiment, different ROs to be used may be determined based on protocol information, high-layer configuration information, or dynamic indication information.
[0107] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes one of the following:
[0108] Determining that the available RO is the second-type RO, and determining the second-type RO and / or Preamble associated with the SSB based on a second mapping criterion;
[0109] Determining that the available RO is the first type RO, and determining the first type RO and / or Preamble associated with the SSB based on a first mapping criterion;
[0110] The usable ROs are determined to be first-type ROs and second-type ROs, the first-type RO and / or Preamble associated with the SSB are determined based on a first mapping criterion, and the second-type RO and / or Preamble associated with the SSB are determined based on a second mapping criterion.
[0111] In the above embodiment, when the available ROs are of different types, the second type of RO and / or Preamble associated with the SSB may be determined based on different mapping criteria.
[0112] In combination with the embodiments of the first aspect, in some embodiments, the time domain and / or frequency domain configurations of the first type RO and the second type RO are the same or different.
[0113] In conjunction with the embodiments of the first aspect, in some embodiments, the first information is used to indicate the second RACH resource and the third RACH resource; and the method further includes:
[0114] Determine the third RACH resource as a RACH resource for the first type of terminal.
[0115] In the foregoing embodiment, the first type terminal may determine that the third RACH resource is a RACH resource for the first type terminal.
[0116] In conjunction with the embodiments of the first aspect, in some embodiments, determining that the third RACH resource is a RACH resource for the first type of terminal includes one of the following:
[0117] Determining, based on a name of the configuration of the third RACH resource, that the third RACH resource is a RACH resource for the first type of terminal; wherein the name of the configuration of the third RACH resource is used to indicate that the third RACH resource is for the first type of terminal;
[0118] Based on a feature combination parameter, the third RACH resource is determined to be a RACH resource for the first type of terminal; wherein, if the feature combination parameter includes an SBFD feature, the third RACH resource is used for the first type of terminal.
[0119] In the above embodiment, the third RACH resource may be determined as the RACH resource for the first type of terminal based on different methods.
[0120] In conjunction with the embodiments of the first aspect, in some embodiments, the first information is used to indicate the second RACH resource and the third RACH resource; and the method further includes:
[0121] Determining an RO used by the first type of terminal;
[0122] The RO is an RO in the second RACH resource and / or the third RACH resource.
[0123] In the above embodiment, when the first information is used to indicate the second RACH resource and the third RACH resource, the first type terminal may determine the RO that the first type terminal can use.
[0124] In conjunction with the embodiments of the first aspect, in some embodiments, determining the RO used by the first type of terminal includes:
[0125] The RO used by the first type of terminal is determined based on a magnitude relationship between the wireless transmission quality of the received SSB and a second threshold.
[0126] In the above embodiment, the RO used by the first type terminal may be determined based on the wireless transmission quality of the received SSB.
[0127] In conjunction with the embodiments of the first aspect, in some embodiments, determining the RO used by the first type of terminal based on the relationship between the wireless transmission quality of the received SSB and the second threshold includes at least one of the following:
[0128] determining that the wireless transmission quality of all received SSBs is less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a second type RO in the third RACH resource;
[0129] determining that the wireless transmission quality of all received SSBs is less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource;
[0130] determining that the wireless transmission quality of at least one received SSB is not less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first type RO in a third RACH resource;
[0131] determining that the wireless transmission quality of at least one received SSB is not less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the first type RO in the third RACH resource and the second type RO in the third RACH resource;
[0132] Determine that the wireless transmission quality of at least one received SSB is not less than the second threshold, and based on protocol information, high-layer configuration information or dynamic indication information, determine that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource.
[0133] In the above embodiment, different ROs to be used may be determined based on different levels of wireless transmission quality of the SSB.
[0134] In conjunction with the embodiments of the first aspect, in some embodiments, determining the RO used by the first type of terminal includes one of the following:
[0135] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a second type of RO in the third RACH resource;
[0136] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource;
[0137] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO in a third RACH resource;
[0138] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-type RO in a third RACH resource or a second-type RO in the third RACH resource;
[0139] Based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource and the second type RO in the second RACH resource.
[0140] In the above embodiment, different ROs for use may be determined based on protocol information, high-layer configuration information, or dynamic indication information.
[0141] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes one of the following:
[0142] Determine that the RO to be used is the second type of RO in the third RACH resource, and determine the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0143] Determining that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource, determining the second type RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, and determining the second type RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0144] Determining that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource, determining the second type RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, and determining the first type RO, the second type RO, and / or the Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0145] Determining that the RO to be used is the first type of RO in the third RACH resource, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0146] Determining that the RO to be used is the first type of RO in the third RACH resource and the second type of RO in the third RACH resource, determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion;
[0147] Determining that the RO to be used is the first type RO in the third RACH resource and the second type RO in the third RACH resource, and determining the first type RO, the second type RO and / or the Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0148] Determining that the RO to be used is the first type of RO in the third RACH resource, the second type of RO in the third RACH resource, and the second type of RO in the second RACH resource, determining the second type of RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion;
[0149] Determine that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource, determine the second type RO and / or Preamble in the second RACH resource associated with the SSB based on the first mapping criterion, and determine the first type RO, the second type RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion.
[0150] In the above embodiment, when different types of ROs are determined to be used, different types of ROs and / or Preambles may be determined based on different mapping criteria.
[0151] In combination with the embodiments of the first aspect, in some embodiments, the first mapping criterion is the same as or different from the second mapping criterion.
[0152] In conjunction with the embodiments of the first aspect, in some embodiments, the first mapping criterion and / or the second mapping criterion includes at least one of the following:
[0153] N SSBs are mapped to one RO, where N is a number greater than 0;
[0154] An SSB associated preamble.
[0155] In conjunction with the embodiments of the first aspect, in some embodiments, the second RACH resource and the third RACH resource meet one of the following conditions:
[0156] The first condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at the same time domain and / or frequency domain position, and the second type RO of the second RACH resource and the second type RO at the same time and frequency position of the third RACH resource contain the same preamble;
[0157] The second condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at the same time domain and / or frequency domain position, and the second type RO of the second RACH resource and the second type RO at the same time and frequency position of the third RACH resource contain different preambles;
[0158] The third condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located in different time domain and / or frequency domain locations. In conjunction with the embodiment of the first aspect, in some embodiments, the first condition further includes at least one of the following:
[0159] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0160] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions;
[0161] An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
[0162] In conjunction with the embodiments of the first aspect, in some embodiments, the second condition further includes at least one of the following:
[0163] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0164] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions;
[0165] An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
[0166] In conjunction with the embodiments of the first aspect, in some embodiments, the first condition further includes:
[0167] The second type RO in the third RACH resource is the same as the second type RO in the second RACH resource.
[0168] In conjunction with the embodiments of the first aspect, in some embodiments, the second condition further includes:
[0169] For the first type of terminal, the starting Preamble, the number of Preambles associated with an SSB and / or the Preamble index associated with an SSB in the second type of RO are configured.
[0170] In conjunction with the embodiments of the first aspect, in some embodiments, the third condition further includes one of the following:
[0171] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0172] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain locations.
[0173] With reference to the embodiments of the first aspect, in some embodiments, the random access RA is contention-based random access CBRA or the RA is non-contention-based random access CFRA.
[0174] With reference to the embodiments of the first aspect, in some embodiments, the CFRA is a CFRA triggered based on a higher layer or a CFRA triggered based on a physical downlink control channel PDCCH.
[0175] In combination with the embodiment of the first aspect, in some embodiments, the RA is a 2-step random access or the RA is a 4-step random access.
[0176] In conjunction with the embodiments of the first aspect, in some embodiments, the first information includes third configuration information of the first RACH resource, and the method further includes:
[0177] The first RACH resource is determined based on the third configuration information.
[0178] In the above embodiment, the first RACH resource may be determined based on the third configuration information.
[0179] In conjunction with the embodiments of the first aspect, in some embodiments, determining the first RACH resource based on the third configuration information includes:
[0180] Determine a time domain position of the first type of RO in the first RACH resource based on the first RACH configuration index prach-ConfigurationIndex indicated by the third configuration information and a first predetermined mapping relationship.
[0181] In the above embodiment, the time domain position of the first type of RO in the first RACH resource may be determined based on the first RACH configuration index prach-ConfigurationIndex and a first predetermined mapping relationship.
[0182] In conjunction with the embodiments of the first aspect, in some embodiments, the first information includes fourth configuration information of the third RACH resource, and the method further includes:
[0183] The third RACH resource is determined based on the fourth configuration information.
[0184] In the above embodiment, the third RACH resource may be determined based on the fourth configuration information.
[0185] In conjunction with the embodiments of the first aspect, in some embodiments, determining the third RACH resource based on the fourth configuration information includes one of the following:
[0186] Determine the time domain position of the first type RO in the third RACH resource based on the third RACH configuration index prach-ConfigurationIndex indicated by the fourth configuration information and a first predetermined mapping relationship;
[0187] The time domain position of the first type RO and the time domain position of the second type RO in the third RACH resource are determined based on the third RACH configuration index prach-ConfigurationIndex indicated by the fourth configuration information and a first predetermined mapping relationship.
[0188] In the above embodiment, the time domain position of the first type RO in the third RACH resource can be determined based on the third RACH configuration index prach-ConfigurationIndex and the first predetermined mapping relationship, or the time domain position of the first type RO and the time domain position of the second type RO in the third RACH resource can be determined based on the third RACH configuration index prach-ConfigurationIndex and the first predetermined mapping relationship.
[0189] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:
[0190] The first predetermined mapping relationship is determined.
[0191] In the above embodiment, the first predetermined mapping relationship can be clearly determined.
[0192] In conjunction with the embodiments of the first aspect, in some embodiments, determining the first predetermined mapping relationship includes one of the following:
[0193] Determining the first predetermined mapping relationship based on the communication protocol rule information;
[0194] Determining the first predetermined mapping relationship based on the high-level configuration information;
[0195] The first predetermined mapping relationship is determined based on the indication information dynamically sent by the network device.
[0196] In the above embodiment, the first predetermined mapping relationship may be determined based on different methods.
[0197] In conjunction with the embodiments of the first aspect, in some embodiments, determining the first predetermined mapping relationship includes:
[0198] Determining the first predetermined mapping relationship based on a type of a frequency range FR in which the first RACH resource and / or the third RACH resource are located;
[0199] Here, FR is frequency range 1 FR1 or frequency range 2 FR2.
[0200] In the above embodiment, the first predetermined mapping relationship may be clearly determined based on the type of the FR.
[0201] In conjunction with the embodiments of the first aspect, in some embodiments, determining the first predetermined mapping relationship based on the type of the frequency range FR in which the first RACH resource and / or the third RACH resource are located includes:
[0202] Determining that the first RACH resource or the third RACH resource is in FR1, and the first predetermined mapping relationship is one of the following:
[0203] A second predetermined mapping relationship, where the second predetermined mapping relationship is used for configuration of random access for paired spectrum or supplementary uplink in FR1;
[0204] a third predetermined mapping relationship, where the third predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR1;
[0205] A fourth predetermined mapping relationship is used for configuring random access of the non-paired spectrum in FR1 of the first type terminal.
[0206] In the above embodiment, the first predetermined mapping relationship between the first RACH resource or the third RACH resource in the FR1 situation may be clearly determined.
[0207] In conjunction with the embodiments of the first aspect, in some embodiments, determining the first predetermined mapping relationship based on the type of the frequency range FR in which the first RACH resource and / or the third RACH resource are located includes:
[0208] Determining that the first RACH resource or the third RACH resource is in FR2, and the first predetermined mapping relationship is one of the following:
[0209] a fifth predetermined mapping relationship, where the fifth predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR2;
[0210] A sixth predetermined mapping relationship is used for configuring random access of the first type terminal in the non-paired spectrum in FR2.
[0211] In the above embodiment, the first predetermined mapping relationship between the first RACH resource or the third RACH resource in the FR1 situation may be clearly determined.
[0212] In combination with the embodiments of the first aspect, in some embodiments, the second predetermined mapping relationship, the third predetermined mapping relationship, the fourth predetermined mapping relationship, the fifth predetermined mapping relationship and / or the sixth predetermined mapping relationship are mapping relationships determined according to protocol rule information.
[0213] In a second aspect, an embodiment of the present disclosure provides a communication method, which is performed by a network device and includes:
[0214] Sending first information to the terminal;
[0215] The first information is used to indicate one of the following:
[0216] A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal;
[0217] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
[0218] In combination with the embodiments of the second aspect, in some embodiments, the first type of terminal is a terminal that can recognize sub-band full-duplex SBFD time-frequency configuration; the second type of terminal is a terminal that cannot recognize SBFD time-frequency configuration.
[0219] In combination with the embodiments of the second aspect, in some embodiments, the first RACH resource includes a first type of random access opportunity RO and / or a second type of random access opportunity RO; or, the second RACH resource includes a second type of RO, and the third RACH resource includes a first type of RO and / or a second type of RO; wherein the first type of RO is an RO including a first type of sub-band full-duplex SBFD time unit; and the second type of RO is an RO that does not include a first type of SBFD time unit.
[0220] In conjunction with the embodiments of the second aspect, in some embodiments, the first information is used to indicate the first RACH resource; and the method further includes:
[0221] It is determined whether the first RACH resource includes or does not include a first type of RO.
[0222] In conjunction with the embodiments of the second aspect, in some embodiments, the first-type SBFD time unit is one of the following:
[0223] The time unit is configured as a downlink (DL) time unit by the time division duplex (TDD) uplink and downlink common configuration (TDD-UL-DL-ConfigCommon) and is also configured as a SBFD time unit.
[0224] A time unit configured by TDD-UL-DL-ConfigCommon as a DL time unit or a flexible time unit and configured as a SBFD time unit.
[0225] In conjunction with the embodiments of the second aspect, in some embodiments, determining whether the first RACH resource includes or does not include the first type of random access opportunity RO includes:
[0226] Based on the first configuration information included in the first information, it is determined whether the first RACH resource includes or does not include the first type of RO.
[0227] In conjunction with the embodiments of the second aspect, in some embodiments, the condition that the first RACH resource includes the first type RO includes at least one of the following:
[0228] The first configuration information includes a first mapping criterion and a second mapping criterion, the first mapping criterion and the second mapping criterion are different, the first mapping criterion is a mapping criterion between the first type RO and the synchronization signal block SSB, and the second mapping criterion is a mapping criterion between the second type RO and the SSB;
[0229] The first configuration information includes first resource configuration information and second resource configuration information, the first resource configuration information and the second resource configuration information are different, the first resource configuration information is the time domain and / or frequency domain configuration information of the first type of RO, and the second resource configuration information is the time domain and / or frequency domain configuration information of the second type of RO;
[0230] The first configuration information includes first preamble format configuration information and second preamble format configuration information, the first preamble format configuration information and the second preamble format configuration information are different, the first preamble format configuration information is the Preamble format information of the first type RO, and the second preamble format configuration is the Preamble format information of the second type RO.
[0231] In combination with the embodiments of the second aspect, in some embodiments, the first configuration information indicates whether the first information includes or does not include the first type of RO.
[0232] In conjunction with the embodiments of the second aspect, in some embodiments, the first information is used to indicate the first RACH resource; and the method further includes:
[0233] Determining an RO used by the first type of terminal;
[0234] The RO is the RO in the first RACH resource.
[0235] In conjunction with the embodiments of the second aspect, in some embodiments, determining the RO used by the first type of terminal includes:
[0236] The RO used by the first type of terminal is determined based on a magnitude relationship between the wireless transmission quality of the received SSB and a first threshold.
[0237] In conjunction with the embodiments of the second aspect, in some embodiments, determining the RO used by the first type of terminal based on the relationship between the wireless transmission quality of the received SSB and the first threshold includes at least one of the following:
[0238] Determining that the wireless transmission quality of all received SSBs is less than the first threshold, and determining that the RO to be used is the second type RO;
[0239] Determining that the wireless transmission quality of at least one received SSB is not less than the first threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO;
[0240] Determine that the wireless transmission quality of at least one received SSB is not less than the first threshold, and determine, based on protocol information, high-layer configuration information, or dynamic indication information, whether the RO to be used is a first-category RO or a second-category RO.
[0241] In conjunction with the embodiments of the second aspect, in some embodiments, determining the RO used by the first type of terminal includes at least one of the following:
[0242] Determining, based on protocol information, high-layer configuration information, or dynamic indication information, that the RO to be used is a second-category RO;
[0243] Determining, based on protocol information, high-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO;
[0244] Based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO to be used is a first type RO or a second type RO.
[0245] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes one of the following:
[0246] Determining that the RO to be used is the second type RO, and determining the second type RO and / or Preamble associated with the SSB based on a second mapping criterion;
[0247] Determining that the RO to be used is the first type RO, and determining the first type RO and / or Preamble associated with the SSB based on a first mapping criterion;
[0248] The RO used is determined to be a first type RO and a second type RO, the first type RO and / or Preamble associated with the SSB is determined based on a first mapping criterion, and the second type RO and / or Preamble associated with the SSB is determined based on a second mapping criterion.
[0249] In combination with the embodiments of the second aspect, in some embodiments, the time domain and / or frequency domain configurations of the first type RO and the second type RO are the same or different.
[0250] In conjunction with the embodiments of the second aspect, in some embodiments, the first information is used to indicate the second RACH resource and the third RACH resource; and the method further includes:
[0251] Determine the third RACH resource as a RACH resource for the first type of terminal.
[0252] In conjunction with the embodiments of the second aspect, in some embodiments, determining that the third RACH resource is a RACH resource for the first type of terminal includes one of the following:
[0253] Determining, based on a name of the configuration of the third RACH resource, that the third RACH resource is a RACH resource for the first type of terminal; wherein the name of the configuration of the third RACH resource is used to indicate that the third RACH resource is for the first type of terminal;
[0254] Based on a feature combination parameter, the third RACH resource is determined to be a RACH resource for the first type of terminal; wherein, if the feature combination parameter includes an SBFD feature, the third RACH resource is used for the first type of terminal.
[0255] In conjunction with the embodiments of the second aspect, in some embodiments, the first information is used to indicate the second RACH resource and the third RACH resource; and the method further includes:
[0256] Determining an RO used by the first type of terminal;
[0257] The RO is an RO in the second RACH resource and / or the third RACH resource.
[0258] In conjunction with the embodiments of the second aspect, in some embodiments, determining the RO used by the first type of terminal includes:
[0259] The RO used by the first type of terminal is determined based on a magnitude relationship between the wireless transmission quality of the received SSB and a second threshold.
[0260] In conjunction with the embodiments of the second aspect, in some embodiments, determining the RO used by the first type of terminal based on the relationship between the wireless transmission quality of the received SSB and the second threshold includes at least one of the following:
[0261] determining that the wireless transmission quality of all received SSBs is less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a second type RO in the third RACH resource;
[0262] determining that the wireless transmission quality of all received SSBs is less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource;
[0263] determining that the wireless transmission quality of at least one received SSB is not less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first type RO in a third RACH resource;
[0264] determining that the wireless transmission quality of at least one received SSB is not less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the first type RO in the third RACH resource and the second type RO in the third RACH resource;
[0265] Determine that the wireless transmission quality of at least one received SSB is not less than the second threshold, and based on protocol information, high-layer configuration information or dynamic indication information, determine that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource.
[0266] In conjunction with the embodiments of the second aspect, in some embodiments, determining the RO used by the first type of terminal includes one of the following:
[0267] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a second type of RO in the third RACH resource;
[0268] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource;
[0269] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO in a third RACH resource;
[0270] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-type RO in a third RACH resource or a second-type RO in the third RACH resource;
[0271] Based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource and the second type RO in the second RACH resource.
[0272] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes one of the following:
[0273] Determining that the RO to be used is the second type of RO in the third RACH resource, and determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a fourth mapping criterion;
[0274] Determining that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource, determining the second type RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, and determining the second type RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0275] Determining that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource, determining the second type RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, and determining the first type RO, the second type RO, and / or the Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0276] Determining that the RO to be used is the first type of RO in the third RACH resource, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0277] Determining that the RO to be used is the first type of RO in the third RACH resource and the second type of RO in the third RACH resource, determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion;
[0278] Determining that the RO to be used is the first type RO in the third RACH resource and the second type RO in the third RACH resource, and determining the first type RO, the second type RO and / or the Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0279] Determining that the RO to be used is the first type of RO in the third RACH resource, the second type of RO in the third RACH resource, and the second type of RO in the second RACH resource, determining the second type of RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion;
[0280] Determine that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource, determine the second type RO and / or Preamble in the second RACH resource associated with the SSB based on the first mapping criterion, and determine the first type RO, the second type RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion.
[0281] In combination with the embodiments of the second aspect, in some embodiments, the first mapping criterion is the same as or different from the second mapping criterion.
[0282] In conjunction with the embodiments of the second aspect, in some embodiments, the first mapping criterion and / or the second mapping criterion includes at least one of the following:
[0283] N SSBs are mapped to one RO, where N is a number greater than 0;
[0284] An SSB associated preamble.
[0285] In conjunction with the embodiments of the second aspect, in some embodiments,
[0286] The second RACH resource and the third RACH resource meet one of the following conditions:
[0287] The first condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at the same time domain and / or frequency domain position, and the second type RO of the second RACH resource and the second type RO at the same time and frequency position of the third RACH resource contain the same preamble;
[0288] The second condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at the same time domain and / or frequency domain position, and the second type RO of the second RACH resource and the second type RO at the same time and frequency position of the third RACH resource contain different preambles;
[0289] The third condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at different time domain and / or frequency domain locations.
[0290] In conjunction with the embodiments of the second aspect, in some embodiments, the first condition further includes at least one of the following:
[0291] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0292] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions;
[0293] An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
[0294] In conjunction with the embodiments of the second aspect, in some embodiments, the second condition further includes at least one of the following:
[0295] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0296] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions;
[0297] An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
[0298] In conjunction with the embodiments of the second aspect, in some embodiments, the first condition further includes:
[0299] The second type RO in the third RACH resource is the same as the second type RO in the second RACH resource.
[0300] In conjunction with the embodiments of the second aspect, in some embodiments, the second condition further includes:
[0301] For the first type of terminal, the starting Preamble, the number of Preambles associated with an SSB and / or the Preamble index associated with an SSB in the second type of RO are configured.
[0302] In conjunction with the embodiments of the second aspect, in some embodiments, the third condition further includes one of the following:
[0303] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0304] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain locations.
[0305] In combination with the embodiments of the second aspect, in some embodiments, the random access RA is contention-based random access CBRA or the RA is non-contention-based random access CFRA.
[0306] In combination with the embodiments of the second aspect, in some embodiments, the CFRA is a CFRA triggered based on a higher layer or a CFRA triggered based on a physical downlink control channel PDCCH.
[0307] In combination with the embodiments of the second aspect, in some embodiments, the RA is a 2-step random access or the RA is a 4-step random access.
[0308] In a third aspect, an embodiment of the present disclosure provides a communication method, which is performed by a communication system and includes:
[0309] The network device sends first information to the terminal;
[0310] The first information is used to indicate one of the following:
[0311] A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal;
[0312] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
[0313] In a fourth aspect, an embodiment of the present disclosure provides a terminal, comprising:
[0314] The transceiver module is configured as follows:
[0315] receiving first information sent by a network device;
[0316] The first information is used to indicate one of the following:
[0317] A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal;
[0318] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
[0319] In a fifth aspect, an embodiment of the present disclosure provides a network device, the network device comprising:
[0320] The transceiver module is configured as follows:
[0321] Sending first information to the terminal;
[0322] The first information is used to indicate one of the following:
[0323] A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal;
[0324] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
[0325] In a sixth aspect, an embodiment of the present disclosure provides a communication system, wherein the communication system includes a terminal and a network device, the terminal is configured to implement the communication method described in the optional implementation manner of the first aspect, and the network device is configured to implement the communication method described in the optional implementation manner of the second aspect.
[0326] In a seventh aspect, an embodiment of the present disclosure provides a terminal, the terminal including:
[0327] one or more processors;
[0328] The terminal is used to execute the communication method provided by the first aspect.
[0329] In an eighth aspect, an embodiment of the present disclosure provides a network device, the network device including:
[0330] one or more processors;
[0331] The network device is used to execute the communication method provided in the second aspect.
[0332] In a ninth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, which, when executed on a communication device, enable the communication device to execute the communication method described in the optional implementation of the first and second aspects.
[0333] In a tenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.
[0334] In an eleventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.
[0335] In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.
[0336] It is understandable that the above-mentioned terminals, storage media, program products, computer programs, chips or chip systems are all used to execute the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.
[0337] The present disclosure provides a communication method, a terminal, a network device, and a storage medium. In some embodiments, the terms communication method, information processing method, information transmission method, etc. can be used interchangeably, and the terms communication system, information processing system, etc. can be used interchangeably.
[0338] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
[0339] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.
[0340] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.
[0341] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.
[0342] In the embodiments of the present disclosure, “plurality” refers to two or more.
[0343] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.
[0344] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.
[0345] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is similar when there are more branches such as A, B, C, etc.
[0346] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.
[0347] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
[0348] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.
[0349] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.
[0350] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.
[0351] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.
[0352] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.
[0353] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.
[0354] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
[0355] In some embodiments, data, information, etc. may be obtained with the user's consent.
[0356] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.
[0357] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.
[0358] As shown in FIG. 1 a , a communication system 100 includes a terminal 101 and a network device 102 .
[0359] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.
[0360] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.
[0361] In some embodiments, the access network device may be, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.
[0362] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.
[0363] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.
[0364] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).
[0365] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.
[0366] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1a, or a portion thereof, but are not limited thereto. The entities shown in FIG1a are illustrative only. The communication system may include all or a portion of the entities shown in FIG1a, or may include other entities other than those shown in FIG1a. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.
[0367] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).
[0368] To better understand the embodiments of the present disclosure, the following examples illustrate relevant scenarios:
[0369] In order to improve uplink (UL) coverage and throughput, duplex enhancement (duplex enhancement) has been studied on subband full duplex (SBFD).
[0370] In some embodiments, a carrier component (CC) is divided into multiple subbands (SBs) in the frequency domain on a downlink (DL) symbol or a flexible (F) symbol. The multiple SBs include one UL subband and at least one (e.g., one or two) DL subbands. A base station can transmit DL signals on the DL subband and simultaneously receive UL signals on the UL subband. The DL or F symbols can be configured in at least one of the following ways:
[0371] TDD-UL-DL-ConfigCommon configuration;
[0372] TDD-UL-DL-ConfigDedicated configuration;
[0373] TDD-UL-DL-ConfigCommon and TDD-UL-DL-ConfigDedicated configurations; and
[0374] Downlink Control Information (DCI) format 2-0 (DCI format 2-0) indication.
[0375] When a symbol includes both a DL subband and a UL subband in the frequency domain, it may be called an SBFD symbol.
[0376] In some embodiments, when a time slot includes at least one SBFD symbol, the time slot may be referred to as an SBFD time slot. For example, referring to Figure 1b , time slot 0 is a DL time slot including 14 DL symbols, time slots 1 through 3 are SBFD time slots, each including 14 SBFD symbols, and time slot 4 is a UL time slot including 14 UL symbols.
[0377] In some embodiments, a DL or F symbol can be configured as SBFD via semi-static signaling, referred to as semi-SBFD. Alternatively, a DL or F symbol can be configured as SBFD via dynamic signaling, referred to as dynamic-SBFD. Furthermore, a SBFD symbol can be modified to a DL, UL, or F symbol via dynamic signaling.
[0378] In some embodiments, a guard band (GB) may exist between the DL sub-band and the UL sub-band to reduce interference between DL signals in the DL sub-band and UL signals in the UL sub-band through frequency domain isolation.
[0379] In some embodiments, in a SBFD symbol, the frequency domain range available for UL transmission may be discontinuous.
[0380] In some embodiments, GB and DL subbands are unavailable for UL transmission, and UL subbands are available for UL transmission.
[0381] In some embodiments, the DL subband is unavailable for UL transmission, and the UL subband and GB are available for UL transmission.
[0382] In some embodiments, in an SBFD symbol, the frequency domain range that can be used for UL transmission can be referred to as the UL frequency domain range, and the frequency domain range that cannot be used for UL transmission can be referred to as outside the UL frequency domain range. Based on the above analysis, it can be seen that the UL frequency domain ranges of non-SBFD symbols and SBFD symbols are different. The UL frequency domain range is the UL frequency domain range on the CC. In an SBFD symbol, the UL frequency domain range on the UL bandwidth part (BWP) refers to the frequency domain range where the BWP overlaps with the UL frequency domain range on the CC. Unless otherwise specified, the UL frequency domain range in this disclosure refers to the UL frequency domain range on the BWP.
[0383] In some embodiments, when the terminal is in the Radio Resource Control (RRC) idle state, when initially accessing a cell, the terminal will measure information such as the received signal strength of the synchronization broadcast block (SSB) beam and select the optimal SSB beam. In the direction of the optimal SSB beam, a physical random access channel (PRACH) signal is sent at the random access channel occasion (RO) for random access. In addition, in other states, the terminal may also send a PRACH signal at the RO for random access. Random access includes contention-based random access (CBRA) and contention-free random access (CFRA). In CBRA, if multiple terminals use the same preamble, random access will fail.
[0384] In some embodiments, the SSB referred to below may be the SSB selected by the UE mentioned above.
[0385] In some embodiments, during SBFD symbols, the UE can transmit uplink signals in the UL SB. Therefore, as shown in Figure 1c, configuring ROs in SBFD symbols increases the number of ROs compared to configuring them only in UL or F symbols. SBFD-aware UEs (UEs that can recognize SBFD symbol configurations) can perform random access using ROs in SBFD symbols, reducing access latency and the probability of PUSCH transmission collisions between different UEs in CBRA.
[0386] In some embodiments, a RO is considered valid if it meets certain conditions. Considering that a cell may contain both SBFD-aware UEs and legacy UEs (UEs that cannot recognize SBFD symbol configurations), SBFD-aware UEs can recognize both additional ROs (e.g., ROs configured in SBFD symbols) and legacy ROs (e.g., ROs configured in UL or F symbols), while legacy UEs can only recognize legacy ROs. An additional RO refers to an RO that includes at least one SBFD symbol, while a legacy RO refers to an RO that does not include SBFD symbols. Therefore, when ROs are configured in SBFD symbols, SBFD-aware UEs and legacy UEs can recognize different numbers of valid ROs.
[0387] In some embodiments, there is a mapping relationship between SSB, Valid RO and Preamble. The base station can determine that the beam used by the UE is SSB#m based on the time-frequency position of the Valid RO and the preamble sent by the UE.
[0388] Exemplarily, referring to FIG. 1d , in the relevant configuration, a total of 6 SSBs are mapped to valid ROs, wherein 1 (or each) SSB is mapped to 2 valid ROs.
[0389] For SBFD-aware UEs, the association between available ROs and SSBs within a PRACH configuration period is as follows: there are eight additional valid ROs (e.g., ROs #0-3, 6-9 as shown in Figure 1d) and four legacy valid ROs (e.g., ROs #4, 5, 10, and 11 as shown in Figure 1d). ROs #0-1, 2-3, 4-5, 6-7, 8-9, and 10-11 correspond to SSBs #0, #1, #2, #3, #4, and #5, respectively.
[0390] For legacy UEs, there are four legacy valid ROs (e.g., RO#4, 5, 10, 11 as shown in Figure 1d). When one SSB is mapped to one RO, RO#4 and 5 correspond to SSB#0, and RO#10 and 11 correspond to SSB#1.
[0391] As can be seen above, for different types of UEs, such as SBFD-aware UEs and legacy UEs, the same RO may be associated with different SSBs. For example, for SBFD-aware UEs and legacy UEs, ROs #4, 5, 10, and 11 are associated with different SSBs. Therefore, when an SBFD-aware UE (UE #1) and a legacy UE (UE #2) simultaneously transmit a preamble in, for example, RO #4, the base station, lacking prior information about the UEs, cannot determine that the optimal beam for UE #1 is SSB #2 and the optimal beam for UE #2 is SSB #0, and thus cannot proceed with the subsequent random access process.
[0392] In addition, when the interference is severe, the base station may not allow the SBFD aware UE to use the additional valid RO to send the PRACH.
[0393] Therefore, when SBFD aware UEs and legacy UEs coexist, at least one of the following problems needs to be solved: ensuring that the SSB associated with a preamble in the legacy RO is the same for SBFD aware UEs and legacy UEs; notifying SBFD aware UEs of specific valid ROs that can be used.
[0394] It should be noted that the mapping between SSB and RO mentioned below refers to the mapping between SSB and valid RO.
[0395] In some embodiments, the time-frequency position of a valid RO, the number of SSBs, and the mapping relationship between SSBs and valid ROs are determined according to parameters configured by (RRC, Radio Resource Control).
[0396] In some embodiments, the time domain location of the RO is determined according to the index prach-ConfigurationIndex and a predetermined table (eg, Table 1).
[0397] Table 1:
[0398] PRACH configuration index: prach-ConfigurationIndex configured in RRC;
[0399] Preamble format: use preamble format B4;
[0400] n f mod x=y: the RO configuration period (PRACH configuration period) is 2 frames (x=2), and the RO is on an odd frame (y=1) in the 2 frames;
[0401] Subframe number: RO is on subframes 2, 3, 4, 7, 8, and 9 in odd frames;
[0402] Starting Symbol: The starting symbol of RO in a subframe is 0;
[0403] Number of PRACH slots within a subframe: The number of PRACH slots within a subframe is 1 (the length of the subframe is 1ms, and the corresponding SCS is 15KHz. In this case, the length of the PRACH slot is 1ms and the SCS is 15KHz);
[0404] Number of time-domain PRACH occasions within a PRACH slot: In the time domain, a PRACH slot contains 1 RO; PRACH duration: The length of an RO symbol is 12 symbols.
[0405] In some embodiments, the frequency domain where the RO is located is determined according to the following parameters: msg1-FDM; msg1-FrequencyStart.
[0406] Among them, msg1-FDM: the number of ROs in a PRACH time slot in the frequency domain; msg1-FrequencyStart: the starting RB in the frequency domain.
[0407] For example, please refer to Figure 1d again,
[0408] As shown in FIG1d , RO is in subframes #2, 3, 4, 7, 8, and 9.
[0409] As shown in FIG1d , in the time domain, a PRACH time slot contains one RO. In a subframe, the symbol range of the first RO is OS#0, OS#1, OS#2, OS#3…OS#11.
[0410] As shown in FIG1d , in the frequency domain, one PRACH slot contains two ROs.
[0411] In some embodiments, after determining the time-frequency position of the RO, whether a RO is a valid RO is determined according to certain criteria, which are not limited in this disclosure. The index of the valid RO is determined according to the criterion of first determining the frequency domain and then the time domain.
[0412] In some embodiments, the parameter totalNumberOfRA-Preambles represents the number N_total of preambles used for random access. If not configured, N_total=64.
[0413] In some embodiments, when an SSB is associated with one or more valid ROs, the UE transmits a PRACH signal in the Valid RO#n associated with the optimal SSB#m, and the base station determines that the optimal beam of the UE corresponds to SSB#m based on the time-frequency position of the valid RO.
[0414] In some embodiments, a configuration is: ssb-perRACH-OccasionAndCB-PreamblesPerSSB CHOICE{one n64}, which means that one SSB is mapped to one valid RO, that is, one SSB is mapped to one valid RO, one SSB includes 64 preambles, and the preamble index is 0-63.
[0415] For example, please refer to Figure 1e. There are 12 valid ROs in the PRACH configuration period, there are 8 SSBs in total, 1 SSB is mapped to 1 valid RO, and one SSB contains R=64 preambles; SSB#0 is mapped to RO#0, SSB#1 is mapped to RO#1, and the SSB indexes mapped to other ROs can be obtained by analogy.
[0416] In some embodiments, when SBFD aware UEs and legacy UEs coexist, the following problems may occur: the SSB associated with a Preamble in the legacy RO may be different for the SBFD aware UE and the legacy UE; and the specific valid RO that the SBFD aware UE can use is unknown.
[0417] FIG2a is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2a, the present disclosure embodiment relates to a communication method for a communication system 100, the method comprising:
[0418] Step S2101: The network device sends first information to the terminal.
[0419] In some embodiments, the network device sends the first information to the first type terminal and / or the second type terminal.
[0420] In some embodiments, the first type terminal and / or the second type terminal receives the first information sent by the network device.
[0421] In some embodiments, the first type of terminal (SBFD aware UE) is a terminal that can recognize sub-band full-duplex SBFD time-frequency configuration.
[0422] In some embodiments, the second type of terminal (legacy UE) is a terminal that cannot recognize SBFD time-frequency configuration.
[0423] In some embodiments, the first information is used to indicate: a first random access channel RACH resource used for random access RA of the first type of terminals and the second type of terminals.
[0424] In some embodiments, the first information is used to indicate: a second RACH resource for RA of the second type of terminals and a third RACH resource for RA of the first type of terminals.
[0425] In some embodiments, the first RACH resource includes a first type of random access opportunity RO and / or a second type of random access opportunity RO; or, the second RACH resource includes a second type of RO, and the third RACH resource includes a first type of RO and / or a second type of RO; wherein the first type of RO is an RO including a first type of sub-band full-duplex SBFD time unit; and the second type of RO is an RO not including a first type of SBFD time unit.
[0426] In some embodiments, an SSB associated with a preamble in a second type of random access opportunity (RO) configured for the second type of terminal is the same for the second type of terminal and the first type of terminal. For example, an SSB associated with a preamble in a legacy RO configured for a legacy UE (or corresponding to the legacy RO) is the same for an SBFD aware UE and a legacy UE. In some embodiments, the first type of SBFD time unit is one of the following:
[0427] The time unit is configured as a downlink (DL) time unit by the time division duplex (TDD) uplink and downlink common configuration (TDD-UL-DL-ConfigCommon) and is also configured as a SBFD time unit.
[0428] The time unit is configured by TDD-UL-DL-ConfigCommon as a DL time unit or a flexible time unit and is configured as a SBFD time unit.
[0429] In some embodiments, the first type of SBFD time unit is one of the following:
[0430] A time unit configured as a downlink (DL) time unit by the time division duplex (TDD) uplink and downlink common configuration TDD-UL-DL-ConfigCommon and a time unit configured as an SBFD time unit by the first information;
[0431] The time unit is configured by TDD-UL-DL-ConfigCommon as a DL time unit or a flexible time unit, and is configured by the first information as a SBFD time unit.
[0432] Step S2102: The first type terminal determines whether the first RACH resource includes or does not include the first type RO.
[0433] It should be noted that step S2102 is a step in a scenario where the first information indicates a first RACH resource. When the first information indicates a second RACH resource and a third RACH resource, step S2102 is not a necessary step.
[0434] In some embodiments, the first type of RO is an RO including a first type of SBFD time unit.
[0435] In some embodiments, based on first configuration information included in the first information, it is determined whether the first RACH resource includes or does not include the first type of RO.
[0436] In some embodiments, the first type of RO is an additional RO.
[0437] Exemplarily, according to a configuration parameter in the first RACH resource, it is implicitly indicated whether the first RACH resource includes the additional RO.
[0438] In some embodiments, the condition that the first RACH resource includes the first type of RO includes at least one of the following:
[0439] The first configuration information includes a first mapping criterion and a second mapping criterion, the first mapping criterion and the second mapping criterion are different, the first mapping criterion is a mapping criterion between the first type RO and the synchronization signal block SSB, and the second mapping criterion is a mapping criterion between the second type RO and the SSB;
[0440] The first configuration information includes first resource configuration information and second resource configuration information, the first resource configuration information and the second resource configuration information are different, the first resource configuration information is the time domain and / or frequency domain configuration information of the first type of RO, and the second resource configuration information is the time domain and / or frequency domain configuration information of the second type of RO;
[0441] The first configuration information includes first preamble format configuration information and second preamble format configuration information, the first preamble format configuration information and the second preamble format configuration information are different, the first preamble format configuration information is the Preamble format information of the first type RO, and the second preamble format configuration is the Preamble format information of the second type RO.
[0442] Exemplarily, mapping criteria of additional RO and legacy RO are differentially configured for the first RACH resource, the legacy RO uses the second mapping criterion, and the additional RO uses the first mapping criterion, implicitly indicating that the first RACH resource includes the additional RO.
[0443] Exemplarily, the time domain and / or frequency domain configurations of the additional RO and the legacy RO are differentially configured for the first RACH resource. If the time domain and / or frequency domain configuration is that of the additional RO, it is implicitly indicated that the first RACH resource includes the additional RO.
[0444] Exemplarily, the Preamble formats of the additional RO and the legacy RO are differentially configured for the first RACH resource. If the Preamble format of the additional RO is used, it is implicitly indicated that the first RACH resource includes the additional RO.
[0445] In some embodiments, the first configuration information indicates whether the first RACH resource includes or does not include the first type of RO.
[0446] Exemplarily, in the first RACH resource, a newly added configuration parameter explicitly indicates whether the first RACH resource includes an additional RO.
[0447] In some embodiments, when the configuration parameters in the first RACH resource cannot implicitly indicate whether the first RACH resource includes the additional RO, a new configuration parameter is used to explicitly indicate whether the first RACH resource includes the additional RO.
[0448] In some embodiments, the random access RA is a contention-based random access CBRA or the RA is a non-contention-based random access CFRA.
[0449] In some embodiments, protocol defaults or higher-layer configurations or dynamic indications apply to both CBRA and CFRA.
[0450] In some embodiments, the CFRA is a CFRA triggered based on a higher layer or a CFRA triggered based on a physical downlink control channel PDCCH.
[0451] For example, the CFRA triggered by a physical downlink control channel (PDCCH) instruction may use other dynamic indication signaling or add indication information to the PDCCH instruction to implement dynamic indication.
[0452] Exemplarily, the bit of the newly added indication information may use the reserved bit in the PDCCH instruction.
[0453] In some embodiments, RA is a 2-step random access or RA is a 4-step random access.
[0454] Step S2103: The first type terminal determines that the third RACH resource is a RACH resource for the first type terminal.
[0455] It should be noted that step S2103 is a step in the scenario where the first information indicates the second RACH resource and the third RACH resource. When the first information indicates the third RACH resource, step S2103 is not a necessary step.
[0456] In some embodiments, the first information is used to indicate the second RACH resource and the third RACH resource; and the third RACH resource is determined to be a RACH resource for the first type of terminal.
[0457] In some embodiments, based on a configured name of the third RACH resource, the third RACH resource is determined to be a RACH resource for the first type of terminal; wherein the configured name of the third RACH resource is used to indicate that the third RACH resource is for the first type of terminal.
[0458] Exemplarily, the name of the third RACH resource configuration is different from that of the second RACH resource configuration, such as the name of the third RACH resource configuration indicates that it is for SBFD aware UEs. For example, the third RACH resource configuration is configured in AdditionalRACH-Config, and the name indicates that it is for SBFD aware UEs.
[0459] In some embodiments, based on a feature combination parameter (FeatureCombination parameter), the third RACH resource is determined to be a RACH resource for the first type of terminal; wherein, if the feature combination parameter includes an SBFD feature, the third RACH resource is used for the first type of terminal.
[0460] Exemplarily, the third RACH resource is configured in AdditionalRACH-Config, and the third RACH resource is configured with a FeatureCombination parameter including the SBFD feature, indicating that the third RACH resource is used for SBFD aware UE.
[0461] Step S2104: The first type terminal determines the RO to be used.
[0462] In some embodiments, the first type terminal determines the RO that can be used.
[0463] In some embodiments, the RO is an RO in the first RACH resource.
[0464] In some embodiments, the RO is an RO in the second RACH resource and / or the third RACH resource.
[0465] In some embodiments, the first information is used to indicate the first RACH resource; the first type terminal determines the RO that the first type terminal can use.
[0466] In some embodiments, the RO that can be used by the first type of terminal is determined based on the size relationship between the wireless transmission quality of the received SSB and a first threshold.
[0467] In some embodiments, the wireless transmission quality may be Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), or Signal to Interference plus Noise Ratio (SINR).
[0468] In some embodiments, it is determined that the radio transmission quality of all received SSBs is less than the first threshold, and the usable RO is determined to be the second type RO. This scenario can be performed when the first RACH resource explicitly or implicitly indicates that the first type RO is included.
[0469] In some embodiments, it is determined that the wireless transmission quality of at least one received SSB is not less than the first threshold, and based on protocol information, high-level configuration information or dynamic indication information, it is determined that the RO that can be used is a first-class RO; this scenario can be performed when the first RACH resource is explicitly or implicitly indicated to include a first-class RO.
[0470] In some embodiments, it is determined that the wireless transmission quality of at least one received SSB is not less than the first threshold, and based on protocol information, high-level configuration information or dynamic indication information, it is determined that the RO that can be used is a first type RO and a second type RO; this scenario can be performed when the first RACH resource is explicitly or implicitly indicated to include a first type RO.
[0471] Exemplarily, a new parameter RSRP threshold#1 is added. When the RSRP of all SSBs is lower than RSRP threshold#1, the second type of RO is used. When the RSRP of at least one SSB is not less than RSRP threshold#1, the first type of RO is used, or the first type of RO and the second type of RO are used according to the protocol default, high-level configuration or dynamic indication.
[0472] In some embodiments, based on protocol information, higher layer configuration information or dynamic indication information, it is determined that the available RO is a second type RO. This scenario can be performed when the first RACH resource is explicitly or implicitly indicated to include a first type RO.
[0473] In some embodiments, based on protocol information, higher layer configuration information or dynamic indication information, it is determined that the available RO is a first type RO. This scenario can be performed when the first RACH resource is explicitly or implicitly indicated to include the first type RO.
[0474] In some embodiments, based on protocol information, high-layer configuration information, or dynamic indication information, it is determined that the available ROs are first-type ROs and second-type ROs. This scenario can be performed when the first RACH resource is explicitly or implicitly indicated to include the first-type RO.
[0475] In some embodiments, the usable RO is determined to be the second type RO, and the second type RO and / or Preamble associated with the SSB is determined based on a second mapping criterion.
[0476] In some embodiments, the usable RO is determined to be the first type RO, and the first type RO and / or Preamble associated with the SSB is determined based on a first mapping criterion.
[0477] In some embodiments, the ROs that can be used are determined to be first-class ROs and second-class ROs, the first-class ROs and / or Preambles associated with the SSB are determined based on first mapping criteria, and the second-class ROs and / or Preambles associated with the SSB are determined based on second mapping criteria.
[0478] In some embodiments, the time domain and / or frequency domain configurations of the first type RO and the second type RO are the same or different.
[0479] In some embodiments, the first mapping criterion is the same as or different from the second mapping criterion.
[0480] In some embodiments, the SSB is mapped to the legacy valid RO and Preamble according to a second mapping criterion.
[0481] In some embodiments, the SSB is mapped to additional valid RO and Preamble according to a first mapping criterion.
[0482] In some embodiments, the first mapping criterion and / or the second mapping criterion include at least one of the following:
[0483] N SSBs are mapped to one RO, where N is a number greater than 0;
[0484] An SSB associated preamble.
[0485] In some embodiments, the first information is used to indicate the second RACH resource and the third RACH resource; and to determine the RO that can be used by the first type terminal.
[0486] In some embodiments, the RO that can be used by the first type of terminal is determined based on the size relationship between the wireless transmission quality of the received SSB and a second threshold.
[0487] In some embodiments, it is determined that the wireless transmission quality of all received SSBs is less than the second threshold, and based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO that can be used is the second type RO in the third RACH resource.
[0488] In some embodiments, it is determined that the wireless transmission quality of all received SSBs is less than the second threshold, and based on protocol information, high-level configuration information or dynamic indication information, it is determined that the RO that can be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource.
[0489] In some embodiments, it is determined that the wireless transmission quality of at least one received SSB is not less than the second threshold, and based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO that can be used is the first type RO in the third RACH resource.
[0490] In some embodiments, it is determined that the wireless transmission quality of at least one received SSB is not less than the second threshold, and based on protocol information, high-level configuration information or dynamic indication information, it is determined that the RO that can be used is the first type RO in the third RACH resource and the second type RO in the third RACH resource.
[0491] In some embodiments, it is determined that the wireless transmission quality of at least one received SSB is not less than the second threshold, and based on protocol information, high-level configuration information or dynamic indication information, it is determined that the RO that can be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource.
[0492] In some embodiments, based on protocol information, higher layer configuration information or dynamic indication information, it is determined that the RO that can be used is the second type RO in the third RACH resource.
[0493] In some embodiments, based on protocol information, high-layer configuration information, or dynamic indication information, it is determined that the RO that can be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource.
[0494] In some embodiments, based on protocol information, higher layer configuration information or dynamic indication information, it is determined that the RO that can be used is the first type of RO in the third RACH resource.
[0495] In some embodiments, based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the ROs that can be used are the first type ROs in the third RACH resource and the second type ROs in the third RACH resource.
[0496] In some embodiments, based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the available ROs are the first type ROs in the third RACH resource, the second type ROs in the third RACH resource and the second type ROs in the second RACH resource.
[0497] In some embodiments, the usable RO is determined to be a second type of RO in the third RACH resource, and the second type of RO and / or Preamble in the third RACH resource associated with the SSB is determined based on a second mapping criterion.
[0498] In some embodiments, the RO that can be used is determined to be the second type RO in the third RACH resource and the second type RO in the second RACH resource, and the second type RO and / or Preamble in the second RACH resource associated with the SSB is determined based on the first mapping criterion and the second type RO and / or Preamble in the third RACH resource associated with the SSB is determined based on the second mapping criterion.
[0499] In some embodiments, the RO that can be used is determined to be the second type RO in the third RACH resource and the second type RO in the second RACH resource, the second type RO and / or Preamble in the second RACH resource associated with the SSB is determined based on the first mapping criterion, and the first type RO, the second type RO and / or Preamble in the third RACH resource associated with the SSB are determined based on the second mapping criterion.
[0500] In some embodiments, the usable RO is determined to be a first type RO in a third RACH resource, and the first type RO and / or Preamble in the third RACH resource associated with the SSB is determined based on a second mapping criterion.
[0501] In some embodiments, the RO that can be used is determined to be the first type of RO in the third RACH resource and the second type of RO in the third RACH resource, and the second type of RO and / or Preamble in the third RACH resource associated with the SSB is determined based on the second mapping criterion, and the first type of RO and / or Preamble in the third RACH resource associated with the SSB is determined based on the second mapping criterion.
[0502] In some embodiments, the RO that can be used is determined to be the first type RO in the third RACH resource and the second type RO in the third RACH resource, and the first type RO, the second type RO and / or Preamble in the third RACH resource associated with the SSB are determined based on a second mapping criterion.
[0503] In some embodiments, the RO that can be used is determined to be the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource, and the second type RO and / or Preamble in the second RACH resource associated with the SSB is determined based on a first mapping criterion, the second type RO and / or Preamble in the third RACH resource associated with the SSB is determined based on a second mapping criterion, and the first type RO and / or Preamble in the third RACH resource associated with the SSB is determined based on the second mapping criterion.
[0504] In some embodiments, the RO that can be used is determined to be the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource, and the second type RO and / or Preamble in the second RACH resource associated with the SSB is determined based on a first mapping criterion, and the first type RO, the second type RO and / or Preamble in the third RACH resource associated with the SSB are determined based on a second mapping criterion.
[0505] In some embodiments, the mapping criterion for the second RACH resource configuration is the second mapping criterion, and the mapping criterion for the third RACH resource configuration is the first mapping criterion.
[0506] In some embodiments, the SSB is mapped to the legacy valid RO and Preamble of the second RACH resource according to a second mapping criterion.
[0507] In some embodiments, the SSB is mapped to the legacy valid RO and Preamble of the third RACH resource according to the first mapping criterion.
[0508] In some embodiments, the SSB is mapped to the additional valid RO and Preamble of the third RACH resource according to the first mapping criterion.
[0509] In some embodiments, the SSB is jointly mapped to the additional valid RO, the legacy valid RO, and the Preamble of the third RACH resource according to the first mapping criterion.
[0510] In some embodiments, the second RACH resource and the third RACH resource satisfy one of the following conditions:
[0511] The first condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at the same time domain and / or frequency domain position, and the second type RO of the second RACH resource and the second type RO at the same time and frequency position of the third RACH resource contain the same preamble;
[0512] The second condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at the same time domain and / or frequency domain position, and the second type RO of the second RACH resource and the second type RO at the same time and frequency position of the third RACH resource contain different preambles;
[0513] The third condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at different time domain and / or frequency domain locations.
[0514] Exemplarily, the first condition includes: the time-frequency positions of the legacy ROs in the two sets of RACH resources are the same, and the included preambles are the same (shared legacy RO and same preambles in shared legacy RO).
[0515] Exemplarily, the second condition includes: the time-frequency positions of the legacy ROs in the two sets of RACH resources are the same, and the preambles contained therein are different (shared legacy RO and separate preambles in shared legacy RO).
[0516] Illustratively, the third condition includes: the time domain and / or frequency domain positions of the legacy ROs in the two sets of RACH resources are different, and whether the preambles used by the second RACH resource and the first RACH resource are the same is not limited (Separate legacy RO).
[0517] In some embodiments, the first condition further includes at least one of the following:
[0518] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0519] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions;
[0520] An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
[0521] In some embodiments, the second condition further includes at least one of the following:
[0522] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0523] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions;
[0524] An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
[0525] Exemplarily, in the third RACH resource, the legacy RO and the additional RO are located at the same frequency domain position.
[0526] Exemplarily, in the third RACH resource, the frequency domain position where the RO is located may not be configured, and the RO frequency domain configuration in the second RACH configuration is used.
[0527] Exemplarily, in the third RACH resource, the legacy RO and the additional RO are located in different frequency domain positions.
[0528] Exemplarily, in the third RACH resource, the frequency domain position of the additional RO may be separately configured.
[0529] Exemplarily, the ROs available to SBFD aware UEs in Shared legacy ROs and / or additional ROs may be configured. For example, when an SSB is associated with 1 / N valid ROs, SharedRO-MaskIndex is used to indicate that the SBFD aware UE may use one or more of the 1 / N ROs.
[0530] In some embodiments, the first condition further includes:
[0531] The second type RO in the third RACH resource is the same as the second type RO in the second RACH resource.
[0532] Exemplarily, in the first condition, the legacy valid RO in the third RACH resource and the legacy valid RO in the second RACH resource are the same resource.
[0533] Exemplarily, the SBFD-aware UE uses the additional valid RO in the third RACH resource, and the SSB is mapped to the additional valid RO and Preamble in the third RACH resource according to the second mapping criterion.
[0534] Exemplarily, the SBFD-aware UE uses the additional valid RO and legacy valid RO in the third RACH resource, maps the SSB to the legacy valid RO and preamble of the third RACH resource according to the second mapping criterion; and maps the SSB to the additional valid RO and preamble of the third RACH resource according to the second mapping criterion. The first mapping criterion and the second mapping criterion may be consistent.
[0535] Exemplarily, the SBFD-aware UE uses the additional valid RO and legacy valid RO in the third RACH resource and the legacy valid RO in the second RACH resource, maps the SSB to the legacy valid RO and preamble of the second RACH resource according to a first mapping criterion; maps the SSB to the legacy valid RO and preamble of the third RACH resource according to a second mapping criterion; and maps the SSB to the additional valid RO and preamble of the third RACH resource according to the second mapping criterion. The first mapping criterion and the second mapping criterion may be consistent.
[0536] For example, the SBFD-aware UE uses the legacy valid RO in the third RACH resource. The SSB is mapped to the legacy valid RO and preamble in the third RACH resource according to the second mapping criterion. The first mapping criterion and the second mapping criterion may be consistent.
[0537] Exemplarily, an SBFD-aware UE uses a legacy valid RO in a third RACH resource and a legacy valid RO in a second RACH resource. The SSB is mapped to the legacy valid RO and preamble of the second RACH resource according to a first mapping criterion; and the SSB is mapped to the legacy valid RO and preamble of the third RACH resource according to a second mapping criterion. The first mapping criterion and the second mapping criterion may be consistent.
[0538] Exemplarily, the SBFD-aware UE uses the additional valid RO in the third RACH resource to map the SSB to the additional valid RO and Preamble in the third RACH resource according to the second mapping criterion, wherein the first mapping criterion is inconsistent with the second mapping criterion.
[0539] Exemplarily, the SBFD-aware UE uses the additional valid RO and legacy valid RO in the third RACH resource, maps the SSB to the legacy valid RO and preamble of the third RACH resource according to a first mapping criterion, and maps the SSB to the additional valid RO and preamble of the third RACH resource according to a second mapping criterion, wherein the first mapping criterion is inconsistent with the second mapping criterion.
[0540] Exemplarily, the SBFD-aware UE uses the additional valid RO and legacy valid RO in the third RACH resource and the legacy valid RO in the second RACH resource, maps the SSB to the legacy valid RO and preamble of the second RACH resource according to a first mapping criterion; maps the SSB to the legacy valid RO and preamble of the third RACH resource according to the first mapping criterion; and maps the SSB to the additional valid RO and preamble of the third RACH resource according to a second mapping criterion. The first mapping criterion is inconsistent with the second mapping criterion.
[0541] Exemplarily, the SBFD-aware UE uses the legacy valid RO in the third RACH resource. The SSB is mapped to the additional valid RO and preamble in the third RACH resource according to a first mapping criterion, wherein the first mapping criterion is inconsistent with the second mapping criterion.
[0542] Exemplarily, an SBFD-aware UE uses a legacy valid RO in a third RACH resource and a legacy valid RO in a second RACH resource. The SSB is mapped to the legacy valid RO and preamble of the second RACH resource according to a first mapping criterion; and the SSB is mapped to the additional valid RO and preamble of the third RACH resource according to the first mapping criterion. The first mapping criterion is inconsistent with the second mapping criterion.
[0543] In some embodiments, the second condition further includes:
[0544] For the first type of terminal, the starting Preamble, the number of Preambles associated with an SSB and / or the Preamble index associated with an SSB in the second type of RO are configured.
[0545] In some embodiments, for SBFD aware UE, the starting preamble in the shared legacy RO and / or the number of preambles associated with an SSB and / or the preamble index associated with an SSB are configured.
[0546] In some embodiments, in the third RACH resource, the SBFD aware UE uses the same or different Preamble in the additional RO and the Shared legacy RO.
[0547] In some embodiments, if the Preamble used by the SBFD aware UE in the additional RO is different from that used by the legacy UE in the Shared legacy RO, the SBFD aware UE in the additional RO may use the Preamble used by the SBFD aware UE and the legacy UE in the Shared legacy RO at the same time.
[0548] In some embodiments, the third condition further includes one of the following:
[0549] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0550] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain locations.
[0551] In some embodiments, in the third RACH resource, the legacy RO and the additional RO are located at the same frequency domain location.
[0552] In some embodiments, in the third RACH resource, an RO frequency domain configuration is configured for legacy RO and additional RO.
[0553] In some embodiments, in the third RACH resource, the legacy RO and the additional RO are located at different frequency domain locations.
[0554] In some embodiments, the third RACH resource is configured with the frequency domain configuration of the legacy RO and the frequency domain configuration of the additional RO, respectively. In some embodiments, the term "information" can be interchangeably with "message," "signal," "signaling," "report," "configuration," "indication," "instruction," "command," "channel," "parameter," "field," and "data."
[0555] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".
[0556] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2104. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, step S2103 can be implemented as an independent embodiment, and step S2104 can be implemented as an independent embodiment. For example, step S2102 combined with step S2104 can be implemented as an independent embodiment, step S2103 combined with step S2104 can be implemented as an independent embodiment, step S2101 combined with step S2102 and step S2104 can be implemented as an independent embodiment, and step S2101 combined with step S2103 and step S2104 can be implemented as an independent embodiment, but is not limited to this. Different steps can be executed in a reversed order if there is no contradiction, and this is not limited here.
[0557] In some embodiments, referring to FIG. 2 a again, the steps in FIG. 2 a may further include:
[0558] Step S2105: The first type terminal determines RACH resources.
[0559] In some embodiments, the first information includes third configuration information of the first RACH resource.
[0560] In some embodiments, the first type terminal determines the first RACH resource based on the third configuration information.
[0561] In some embodiments, the first RACH resource includes a first type of random access opportunity RO and / or a second type of random access opportunity RO; wherein the first type of RO is an RO including a first type of subband full-duplex SBFD time unit; and the second type of RO is an RO not including a first type of SBFD time unit.
[0562] In some embodiments, the time domain position of the first type of RO in the first RACH resource is determined based on the first RACH configuration index prach-ConfigurationIndex indicated by the third configuration information and a first predetermined mapping relationship.
[0563] In some embodiments, the first information includes fourth configuration information of the third RACH resource.
[0564] In some embodiments, the third RACH resource is determined based on the fourth configuration information.
[0565] In some embodiments, the third RACH resource includes a first type RO and / or a second type RO; wherein the first type RO is an RO including a first type sub-band full-duplex SBFD time unit; and the second type RO is an RO not including a first type SBFD time unit.
[0566] In some embodiments, the time domain position of the first type RO in the third RACH resource is determined based on the third RACH configuration index prach-ConfigurationIndex indicated by the fourth configuration information and a first predetermined mapping relationship.
[0567] In some embodiments, the time domain position of the first type RO and the time domain position of the second type RO in the third RACH resource are determined based on the third RACH configuration index prach-ConfigurationIndex indicated by the fourth configuration information and a first predetermined mapping relationship.
[0568] In some embodiments, the first type terminal determines the first predetermined mapping relationship.
[0569] In some embodiments, the first predetermined mapping relationship is determined based on communication protocol rule information.
[0570] In some embodiments, the first predetermined mapping relationship is determined based on high-level configuration information.
[0571] In some embodiments, the first predetermined mapping relationship is determined based on indication information dynamically sent by the network device.
[0572] In some embodiments, the first predetermined mapping relationship is determined based on a type of a frequency range FR where the first RACH resource and / or the third RACH resource are located.
[0573] In some embodiments, FR is frequency range 1 FR1 or frequency range 2 FR2.
[0574] In some embodiments, it is determined that the first RACH resource or the third RACH resource is in FR1, and the first predetermined mapping relationship is one of the following:
[0575] A second predetermined mapping relationship, where the second predetermined mapping relationship is used for configuration of random access for paired spectrum or supplementary uplink in FR1;
[0576] a third predetermined mapping relationship, where the third predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR1;
[0577] A fourth predetermined mapping relationship is used for configuring random access of the non-paired spectrum in FR1 of the first type terminal.
[0578] In some embodiments, the determining the first predetermined mapping relationship based on a type of a frequency range FR in which the first RACH resource and / or the third RACH resource are located includes:
[0579] Determining that the first RACH resource or the third RACH resource is in FR2, and the first predetermined mapping relationship is one of the following:
[0580] a fifth predetermined mapping relationship, where the fifth predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR2;
[0581] A sixth predetermined mapping relationship is used for configuring random access of the first type terminal in the non-paired spectrum in FR2.
[0582] In some embodiments, the second predetermined mapping relationship, the third predetermined mapping relationship, the fourth predetermined mapping relationship, the fifth predetermined mapping relationship and / or the sixth predetermined mapping relationship are mapping relationships determined according to protocol rule information.
[0583] In some embodiments, the second predetermined mapping relationship may be used for first type terminals and / or second type terminals.
[0584] In some embodiments, the third predetermined mapping relationship may be used for first type terminals and / or second type terminals.
[0585] In some embodiments, the fifth predetermined mapping relationship may be used for first type terminals and / or second type terminals.
[0586] It should be noted that step S2105 can be performed independently or in combination with at least one of steps S2101 to S2104. Different steps can be performed in a different order if there is no conflict, which is not limited here.
[0587] In order to better understand the technical solution of step S2105, some exemplary embodiments are described below:
[0588] In some embodiments, determining the first RACH resource according to the first RACH resource configuration information (corresponding to the third configuration information of the present disclosure) includes:
[0589] The time domain position of the additional RO (corresponding to the first type of RO in the present disclosure) in the first RACH resource is determined according to the first PRACH configuration index prach-ConfigurationIndex in the first RACH resource configuration information and the first predefined table (corresponding to the first predetermined mapping relationship in the present disclosure).
[0590] In some embodiments, determining the third RACH resource according to the second RACH resource configuration information (corresponding to the fourth configuration information of the present disclosure) includes one of the following:
[0591] Determine the time domain position of the additional RO in the third RACH resource according to the second PRACH configuration index prach-ConfigurationIndex in the second RACH resource configuration information and the first predefined table;
[0592] The time domain positions of the additional RO and the legacy RO in the third RACH resource are determined according to the second PRACH configuration index prach-ConfigurationIndex in the second RACH resource configuration information and the first predefined table.
[0593] In some embodiments, when the first RACH resource or the third RACH resource is in FR1, the first predefined table is the second predefined table, the third predefined table or the fourth predefined table in the protocol.
[0594] In some embodiments, the second predefined table is a predefined table for random access configuration of paired spectrum or supplementary uplink in frequency range 1 (FR1 and paired spectrum / supplementary uplink).
[0595] In some embodiments, the third predefined table is a predefined table for random access configuration of unpaired spectrum in frequency range 1 (FR1 and unpaired spectrum).
[0596] In some embodiments, the fourth predefined table is a predefined table newly added in the protocol for random access configuration of non-paired spectrum in frequency domain range 1 for SBFD aware UEs.
[0597] Exemplarily, the second predefined table is Table 6.3.3.2-2 in 3GPP TS 38.211.
[0598] Exemplarily, the third predefined table is Table 6.3.3.2-3 in 3GPP TS 38.211.
[0599] Exemplarily, the fourth predefined table is a random access configuration table for non-paired spectrum in frequency domain range 1 for SBFD aware UEs newly added in 3GPP TS 38.211.
[0600] In some embodiments, the first predefined table is determined to be the second predefined table, the third predefined table or the fourth predefined table according to protocol default, high-level configuration or dynamic indication.
[0601] In some embodiments, when the first RACH resource or the third RACH resource is in FR2, the first predefined table is the fifth predefined table or the sixth predefined table.
[0602] In some embodiments, the fifth predefined table is a predefined table for random access configuration in frequency range 2 and unpaired spectrum.
[0603] In some embodiments, the sixth predefined table is a table newly added in the protocol and predefined for random access configuration of non-paired spectrum in frequency domain range 2 for SBFD aware UEs.
[0604] In some embodiments, the fifth predefined table is Table 6.3.3.2-4 in 3GPP TS 38.211.
[0605] In some embodiments, the sixth predefined table is a random access configuration table for non-paired spectrum in frequency domain range 2 for SBFD aware UEs newly added in 3GPP TS 38.211.
[0606] In some embodiments, the first predefined table is determined to be the fifth predefined table or the sixth predefined table according to protocol default, high-layer configuration, or dynamic indication.
[0607] Figure 3a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 3a, the communication method according to the embodiment of the present disclosure is executed by a terminal, and the method includes:
[0608] Step S3101: Obtain first information.
[0609] In some embodiments, first information sent by a network device is received.
[0610] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
[0611] Step S3102: Determine whether the first RACH resource includes or does not include the first type of RO.
[0612] In some embodiments, the optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
[0613] Step S3103: Determine that the third RACH resource is a RACH resource for the first type of terminal.
[0614] In some embodiments, the optional implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
[0615] Step S3104: Determine the RO to be used.
[0616] In some embodiments, the optional implementation of step S3104 can refer to the optional implementation of step S2104 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
[0617] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3104. For example, step S3101 can be implemented as an independent embodiment, step S3102 can be implemented as an independent embodiment, step S3103 can be implemented as an independent embodiment, and step S3104 can be implemented as an independent embodiment. For example, step S3102 combined with step S3104 can be implemented as an independent embodiment, step S3103 combined with step S3104 can be implemented as an independent embodiment, step S3101 combined with step S3102 and step S3104 can be implemented as an independent embodiment, and step S3101 combined with step S3103 and step S3104 can be implemented as an independent embodiment, but is not limited to this. Different steps can be executed in a reversed order if there is no contradiction, and this is not limited here.
[0618] In some embodiments, referring to FIG. 3 a again, the steps in FIG. 3 a may further include:
[0619] Step S3105: Determine RACH resources.
[0620] It should be noted that step S3105 can be implemented independently or in combination with at least one of steps S3101 to S3104. Different steps can be executed in a different order if there is no contradiction, and this is not limited here.
[0621] Figure 3b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 3b, the embodiment of the present disclosure relates to a communication method, which is executed by a terminal and includes:
[0622] Step S3201: Receive first information sent by a network device;
[0623] The first information is used to indicate one of the following:
[0624] A first random access channel RACH resource for random access RA of a first type of terminal and a second type of terminal;
[0625] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
[0626] In some embodiments, the optional implementation of step S3201 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
[0627] In some embodiments, the first type of terminal is a terminal that can recognize sub-band full-duplex (SBFD) time-frequency configuration; and the second type of terminal is a terminal that cannot recognize SBFD time-frequency configuration.
[0628] In some embodiments, the first RACH resource includes a first type of random access opportunity RO and / or a second type of random access opportunity RO; or, the second RACH resource includes a second type of RO, and the third RACH resource includes a first type of RO and / or a second type of RO; wherein the first type of RO is an RO including a first type of sub-band full-duplex SBFD time unit; and the second type of RO is an RO not including a first type of SBFD time unit.
[0629] In some embodiments, the first information is used to indicate the first RACH resource; and the method further includes:
[0630] determining whether the first RACH resource includes or does not include a first type of RO;
[0631] The first type of RO is an RO that includes a first type of SBFD time unit.
[0632] In some embodiments, the first type of SBFD time unit is one of the following:
[0633] The time unit is configured as a downlink (DL) time unit by the time division duplex (TDD) uplink and downlink common configuration (TDD-UL-DL-ConfigCommon) and is also configured as a SBFD time unit.
[0634] The time unit is configured by TDD-UL-DL-ConfigCommon as a DL time unit or a flexible time unit and is configured as a SBFD time unit.
[0635] In some embodiments, determining whether the first RACH resource includes or does not include a first type of random access opportunity RO includes:
[0636] Based on the first configuration information included in the first information, it is determined whether the first RACH resource includes or does not include the first type of RO.
[0637] In some embodiments, the condition that the first RACH resource includes the first type of RO includes at least one of the following:
[0638] The first configuration information includes a first mapping criterion and a second mapping criterion, the first mapping criterion and the second mapping criterion are different, the first mapping criterion is a mapping criterion between the first type RO and the synchronization signal block SSB, and the second mapping criterion is a mapping criterion between the second type RO and the SSB;
[0639] The first configuration information includes first resource configuration information and second resource configuration information, the first resource configuration information and the second resource configuration information are different, the first resource configuration information is the time domain and / or frequency domain configuration information of the first type of RO, and the second resource configuration information is the time domain and / or frequency domain configuration information of the second type of RO;
[0640] The first configuration information includes first preamble format configuration information and second preamble format configuration information, the first preamble format configuration information and the second preamble format configuration information are different, the first preamble format configuration information is the Preamble format information of the first type RO, and the second preamble format configuration is the Preamble format information of the second type RO.
[0641] In some embodiments, the first configuration information indicates whether the first RACH resource includes or does not include the first type of RO.
[0642] In some embodiments, the first information is used to indicate the first RACH resource; and the method further includes:
[0643] Determining an RO used by the first type of terminal;
[0644] The RO is the RO in the first RACH resource.
[0645] In some embodiments, determining the RO used by the first type of terminal includes:
[0646] The RO used by the first type of terminal is determined based on a magnitude relationship between the wireless transmission quality of the received SSB and a first threshold.
[0647] In some embodiments, determining the RO used by the first type of terminal based on a magnitude relationship between the wireless transmission quality of the received SSB and a first threshold includes at least one of the following:
[0648] Determining that the wireless transmission quality of all received SSBs is less than the first threshold, and determining that the RO to be used is the second type RO;
[0649] Determining that the wireless transmission quality of at least one received SSB is not less than the first threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO;
[0650] Determine that the wireless transmission quality of at least one received SSB is not less than the first threshold, and determine, based on protocol information, high-layer configuration information, or dynamic indication information, whether the RO to be used is a first-category RO or a second-category RO.
[0651] In some embodiments, determining the RO that the first type of terminal can use includes at least one of the following:
[0652] Determining, based on protocol information, high-layer configuration information, or dynamic indication information, that the RO to be used is a second-category RO;
[0653] Determining, based on protocol information, high-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO;
[0654] Based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO to be used is a first type RO or a second type RO.
[0655] In some embodiments, the method further comprises one of the following:
[0656] Determining that the RO to be used is the second type RO, and determining the second type RO and / or Preamble associated with the SSB based on a second mapping criterion;
[0657] Determining that the RO to be used is the first type RO, and determining the first type RO and / or Preamble associated with the SSB based on a first mapping criterion;
[0658] The RO used is determined to be a first type RO and a second type RO, the first type RO and / or Preamble associated with the SSB is determined based on a first mapping criterion, and the second type RO and / or Preamble associated with the SSB is determined based on a second mapping criterion.
[0659] In some embodiments, the time domain and / or frequency domain configurations of the first type RO and the second type RO are the same or different.
[0660] In some embodiments, the first information is used to indicate the second RACH resource and the third RACH resource; and the method further includes:
[0661] Determine the third RACH resource as a RACH resource for the first type of terminal.
[0662] In some embodiments, determining that the third RACH resource is a RACH resource for the first type of terminal includes one of the following:
[0663] Determining, based on a name of the configuration of the third RACH resource, that the third RACH resource is a RACH resource for the first type of terminal; wherein the name of the configuration of the third RACH resource is used to indicate that the third RACH resource is for the first type of terminal;
[0664] Based on a feature combination parameter, the third RACH resource is determined to be a RACH resource for the first type of terminal; wherein, if the feature combination parameter includes an SBFD feature, the third RACH resource is used for the first type of terminal.
[0665] In some embodiments, the first information is used to indicate the second RACH resource and the third RACH resource; the method further includes: determining the RO used by the first type terminal; wherein the RO is the RO in the second RACH resource and / or the third RACH resource.
[0666] In some embodiments, determining the RO used by the first type of terminal includes:
[0667] The RO used by the first type of terminal is determined based on a magnitude relationship between the wireless transmission quality of the received SSB and a second threshold.
[0668] In some embodiments, determining the RO used by the first type of terminal based on the relationship between the wireless transmission quality of the received SSB and the second threshold includes at least one of the following:
[0669] determining that the wireless transmission quality of all received SSBs is less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a second type RO in the third RACH resource;
[0670] determining that the wireless transmission quality of all received SSBs is less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource;
[0671] determining that the wireless transmission quality of at least one received SSB is not less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first type RO in a third RACH resource;
[0672] determining that the wireless transmission quality of at least one received SSB is not less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the first type RO in the third RACH resource and the second type RO in the third RACH resource;
[0673] Determine that the wireless transmission quality of at least one received SSB is not less than the second threshold, and based on protocol information, high-layer configuration information or dynamic indication information, determine that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource.
[0674] In some embodiments, determining the RO used by the first type of terminal includes one of the following:
[0675] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a second type of RO in the third RACH resource;
[0676] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource;
[0677] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO in a third RACH resource;
[0678] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-type RO in a third RACH resource or a second-type RO in the third RACH resource;
[0679] Based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource and the second type RO in the second RACH resource.
[0680] In some embodiments, the method further comprises one of the following:
[0681] Determine that the RO to be used is the second type of RO in the third RACH resource, and determine the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0682] Determining that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource, determining the second type RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, and determining the second type RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0683] Determining that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource, determining the second type RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, and determining the first type RO, the second type RO, and / or the Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0684] Determining that the RO to be used is the first type of RO in the third RACH resource, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0685] Determining that the RO to be used is the first type of RO in the third RACH resource and the second type of RO in the third RACH resource, determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion;
[0686] Determining that the RO to be used is the first type RO in the third RACH resource and the second type RO in the third RACH resource, and determining the first type RO, the second type RO and / or the Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0687] Determining that the RO to be used is the first type of RO in the third RACH resource, the second type of RO in the third RACH resource, and the second type of RO in the second RACH resource, determining the second type of RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion;
[0688] Determine that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource, determine the second type RO and / or Preamble in the second RACH resource associated with the SSB based on the first mapping criterion, and determine the first type RO, the second type RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion.
[0689] In some embodiments, the first mapping criterion is the same as or different from the second mapping criterion.
[0690] In some embodiments, the first mapping criterion and / or the second mapping criterion include at least one of the following:
[0691] N SSBs are mapped to one RO, where N is a number greater than 0;
[0692] An SSB associated preamble.
[0693] In some embodiments, the second RACH resource and the third RACH resource satisfy one of the following conditions:
[0694] The first condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at the same time domain and / or frequency domain position, and the second type RO of the second RACH resource and the second type RO at the same time and frequency position of the third RACH resource contain the same preamble;
[0695] The second condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at the same time domain and / or frequency domain position, and the second type RO of the second RACH resource and the second type RO at the same time and frequency position of the third RACH resource contain different preambles;
[0696] The third condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at different time domain and / or frequency domain locations.
[0697] In some embodiments, the first condition further includes at least one of the following:
[0698] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0699] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions;
[0700] An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
[0701] In some embodiments, the second condition further includes at least one of the following:
[0702] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0703] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions;
[0704] An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
[0705] In some embodiments, the first condition further includes:
[0706] The second type RO in the third RACH resource is the same as the second type RO in the second RACH resource.
[0707] In some embodiments, the second condition further includes:
[0708] For the first type of terminal, the starting Preamble, the number of Preambles associated with an SSB and / or the Preamble index associated with an SSB in the second type of RO are configured.
[0709] In some embodiments, the third condition further includes one of the following:
[0710] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0711] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain locations.
[0712] In some embodiments, the random access RA is a contention-based random access CBRA or the RA is a non-contention-based random access CFRA.
[0713] In some embodiments, the CFRA is a CFRA triggered based on a higher layer or a CFRA triggered based on a physical downlink control channel PDCCH.
[0714] In some embodiments, RA is a 2-step random access or RA is a 4-step random access.
[0715] In some embodiments, the first information includes third configuration information of the first RACH resource, and the method further includes:
[0716] The first RACH resource is determined based on the third configuration information.
[0717] In some embodiments, determining the first RACH resource based on the third configuration information includes:
[0718] Determine a time domain position of the first type of RO in the first RACH resource based on the first RACH configuration index prach-ConfigurationIndex indicated by the third configuration information and a first predetermined mapping relationship.
[0719] In some embodiments, the first information includes fourth configuration information of the third RACH resource, and the method further includes:
[0720] The third RACH resource is determined based on the fourth configuration information.
[0721] In some embodiments, determining the third RACH resource based on the fourth configuration information includes one of the following:
[0722] Determine the time domain position of the first type RO in the third RACH resource based on the third RACH configuration index prach-ConfigurationIndex indicated by the fourth configuration information and a first predetermined mapping relationship;
[0723] The time domain position of the first type RO and the time domain position of the second type RO in the third RACH resource are determined based on the third RACH configuration index prach-ConfigurationIndex indicated by the fourth configuration information and a first predetermined mapping relationship.
[0724] In some embodiments, the method further comprises:
[0725] The first predetermined mapping relationship is determined.
[0726] In some embodiments, determining the first predetermined mapping relationship includes one of the following:
[0727] Determining the first predetermined mapping relationship based on the communication protocol rule information;
[0728] Determining the first predetermined mapping relationship based on the high-level configuration information;
[0729] The first predetermined mapping relationship is determined based on the indication information dynamically sent by the network device.
[0730] In some embodiments, determining the first predetermined mapping relationship includes:
[0731] Determining the first predetermined mapping relationship based on a type of a frequency range FR in which the first RACH resource and / or the third RACH resource are located;
[0732] Here, FR is frequency range 1 FR1 or frequency range 2 FR2.
[0733] In some embodiments, the determining the first predetermined mapping relationship based on a type of a frequency range FR in which the first RACH resource and / or the third RACH resource are located includes:
[0734] Determining that the first RACH resource or the third RACH resource is in FR1, and the first predetermined mapping relationship is one of the following:
[0735] A second predetermined mapping relationship, where the second predetermined mapping relationship is used for configuration of random access for paired spectrum or supplementary uplink in FR1;
[0736] a third predetermined mapping relationship, where the third predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR1;
[0737] A fourth predetermined mapping relationship is used for configuring random access of the non-paired spectrum in FR1 of the first type terminal.
[0738] In some embodiments, the determining the first predetermined mapping relationship based on a type of a frequency range FR in which the first RACH resource and / or the third RACH resource are located includes:
[0739] Determining that the first RACH resource or the third RACH resource is in FR2, and the first predetermined mapping relationship is one of the following:
[0740] a fifth predetermined mapping relationship, where the fifth predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR2;
[0741] A sixth predetermined mapping relationship is used for configuring random access of the first type terminal in the non-paired spectrum in FR2.
[0742] In some embodiments, the second predetermined mapping relationship, the third predetermined mapping relationship, the fourth predetermined mapping relationship, the fifth predetermined mapping relationship and / or the sixth predetermined mapping relationship are mapping relationships determined according to protocol rule information.
[0743] In some embodiments, the second predetermined mapping relationship may be used for first type terminals and / or second type terminals.
[0744] In some embodiments, the third predetermined mapping relationship may be used for first type terminals and / or second type terminals.
[0745] In some embodiments, the fifth predetermined mapping relationship may be used for first type terminals and / or second type terminals.
[0746] FIG4a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4a, the communication method according to the embodiment of the present disclosure is executed by the network device 102, and the method includes:
[0747] Step S4101: Send first information to the terminal.
[0748] In some embodiments, the optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
[0749] Step S4102: Determine whether the first RACH resource includes or does not include the first type of RO.
[0750] In some embodiments, the optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
[0751] Step S4103: Determine that the third RACH resource is a RACH resource for the first type of terminal.
[0752] In some embodiments, the optional implementation of step S4103 can refer to the optional implementation of step S2103 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
[0753] Step S4104: Determine the RO to be used.
[0754] In some embodiments, the optional implementation of step S4104 can refer to the optional implementation of step S2104 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
[0755] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4104. For example, step S4101 can be implemented as an independent embodiment, step S4102 can be implemented as an independent embodiment, step S4103 can be implemented as an independent embodiment, and step S4104 can be implemented as an independent embodiment. For example, step S4102 combined with step S4104 can be implemented as an independent embodiment, step S4103 combined with step S4104 can be implemented as an independent embodiment, step S4101 combined with step S4102 and step S4104 can be implemented as an independent embodiment, and step S4101 combined with step S4103 and step S4104 can be implemented as an independent embodiment, but is not limited to this. Different steps can be executed in a reversed order if there is no contradiction, and this is not limited here.
[0756] Figure 4b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 4b, the embodiment of the present disclosure relates to a communication method, which is executed by a network device, and the method includes:
[0757] Step S4201: Sending first information to the terminal;
[0758] The first information is used to indicate one of the following:
[0759] A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal;
[0760] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
[0761] In some embodiments, the optional implementation of step S4201 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
[0762] In some embodiments, the first type of terminal is a terminal that can recognize sub-band full-duplex (SBFD) time-frequency configuration; and the second type of terminal is a terminal that cannot recognize SBFD time-frequency configuration.
[0763] In some embodiments, the first RACH resource includes a first type of random access opportunity RO and / or a second type of random access opportunity RO; or, the second RACH resource includes a second type of RO, and the third RACH resource includes a first type of RO and / or a second type of RO; wherein the first type of RO is an RO including a first type of sub-band full-duplex SBFD time unit; and the second type of RO is an RO not including a first type of SBFD time unit.
[0764] In some embodiments, the first information is used to indicate the first RACH resource; and the method further includes:
[0765] determining whether the first RACH resource includes or does not include a first type of RO;
[0766] The first type of RO is an RO that includes a first type of SBFD time unit.
[0767] In some embodiments, the first type of SBFD time unit is one of the following:
[0768] The time unit is configured as a downlink (DL) time unit by the time division duplex (TDD) uplink and downlink common configuration (TDD-UL-DL-ConfigCommon) and is also configured as a SBFD time unit.
[0769] The time unit is configured by TDD-UL-DL-ConfigCommon as a DL time unit or a flexible time unit and is configured as a SBFD time unit.
[0770] In some embodiments, determining whether the first RACH resource includes or does not include a first type of random access opportunity RO includes:
[0771] Based on the first configuration information included in the first information, it is determined whether the first RACH resource includes or does not include the first type of RO.
[0772] In some embodiments, the condition that the first RACH resource includes the first type of RO includes at least one of the following:
[0773] The first configuration information includes a first mapping criterion and a second mapping criterion, the first mapping criterion and the second mapping criterion are different, the first mapping criterion is a mapping criterion between the first type RO and the synchronization signal block SSB, and the second mapping criterion is a mapping criterion between the second type RO and the SSB;
[0774] The first configuration information includes first resource configuration information and second resource configuration information, the first resource configuration information and the second resource configuration information are different, the first resource configuration information is the time domain and / or frequency domain configuration information of the first type of RO, and the second resource configuration information is the time domain and / or frequency domain configuration information of the second type of RO;
[0775] The first configuration information includes first preamble format configuration information and second preamble format configuration information, the first preamble format configuration information and the second preamble format configuration information are different, the first preamble format configuration information is the Preamble format information of the first type RO, and the second preamble format configuration is the Preamble format information of the second type RO.
[0776] In some embodiments, the first configuration information indicates whether the first information includes or does not include the first type of RO.
[0777] In some embodiments, the first information is used to indicate the first RACH resource; and the method further includes:
[0778] Determining an RO used by the first type of terminal;
[0779] The RO is the RO in the first RACH resource.
[0780] In some embodiments, determining the RO that the first type of terminal can use includes:
[0781] The RO used by the first type of terminal is determined based on a magnitude relationship between the wireless transmission quality of the received SSB and a first threshold.
[0782] In some embodiments, determining the RO used by the first type of terminal based on a magnitude relationship between the wireless transmission quality of the received SSB and a first threshold includes at least one of the following:
[0783] Determining that the wireless transmission quality of all received SSBs is less than the first threshold, and determining that the RO to be used is the second type RO;
[0784] Determining that the wireless transmission quality of at least one received SSB is not less than the first threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO;
[0785] Determine that the wireless transmission quality of at least one received SSB is not less than the first threshold, and determine, based on protocol information, high-layer configuration information, or dynamic indication information, whether the RO to be used is a first-category RO or a second-category RO.
[0786] In some embodiments, determining the RO that the first type of terminal can use includes at least one of the following:
[0787] Determining, based on protocol information, high-layer configuration information, or dynamic indication information, that the RO to be used is a second-category RO;
[0788] Determining, based on protocol information, high-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO;
[0789] Based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO to be used is a first type RO or a second type RO.
[0790] In some embodiments, the method further comprises one of the following:
[0791] Determining that the RO to be used is the second type RO, and determining the second type RO and / or Preamble associated with the SSB based on a second mapping criterion;
[0792] Determining that the RO to be used is the first type RO, and determining the first type RO and / or Preamble associated with the SSB based on a first mapping criterion;
[0793] The RO used is determined to be a first type RO and a second type RO, the first type RO and / or Preamble associated with the SSB is determined based on a first mapping criterion, and the second type RO and / or Preamble associated with the SSB is determined based on a second mapping criterion.
[0794] In some embodiments, the time domain and / or frequency domain configurations of the first type RO and the second type RO are the same or different.
[0795] In some embodiments, the first information is used to indicate the second RACH resource and the third RACH resource; and the method further includes:
[0796] Determine the third RACH resource as a RACH resource for the first type of terminal.
[0797] In some embodiments, determining that the third RACH resource is a RACH resource for the first type of terminal includes one of the following:
[0798] Determining, based on a name of the configuration of the third RACH resource, that the third RACH resource is a RACH resource for the first type of terminal; wherein the name of the configuration of the third RACH resource is used to indicate that the third RACH resource is for the first type of terminal;
[0799] Based on a feature combination parameter, the third RACH resource is determined to be a RACH resource for the first type of terminal; wherein, if the feature combination parameter includes an SBFD feature, the third RACH resource is used for the first type of terminal.
[0800] In some embodiments, the first information is used to indicate the second RACH resource and the third RACH resource; and the method further includes:
[0801] Determining an RO used by the first type of terminal;
[0802] The RO is an RO in the second RACH resource and / or the third RACH resource.
[0803] In some embodiments, determining the RO used by the first type of terminal includes:
[0804] The RO used by the first type of terminal is determined based on a magnitude relationship between the wireless transmission quality of the received SSB and a second threshold.
[0805] In some embodiments, determining the RO used by the first type of terminal based on the relationship between the wireless transmission quality of the received SSB and the second threshold includes at least one of the following:
[0806] determining that the wireless transmission quality of all received SSBs is less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a second type RO in the third RACH resource;
[0807] determining that the wireless transmission quality of all received SSBs is less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource;
[0808] determining that the wireless transmission quality of at least one received SSB is not less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first type RO in a third RACH resource;
[0809] determining that the wireless transmission quality of at least one received SSB is not less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the first type RO in the third RACH resource and the second type RO in the third RACH resource;
[0810] Determine that the wireless transmission quality of at least one received SSB is not less than the second threshold, and based on protocol information, high-layer configuration information or dynamic indication information, determine that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource.
[0811] In some embodiments, determining the RO used by the first type of terminal includes one of the following:
[0812] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a second type of RO in the third RACH resource;
[0813] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource;
[0814] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO in a third RACH resource;
[0815] Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-type RO in a third RACH resource or a second-type RO in the third RACH resource;
[0816] Based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource and the second type RO in the second RACH resource.
[0817] In some embodiments, the method further comprises one of the following:
[0818] Determining that the RO to be used is the second type of RO in the third RACH resource, and determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a fourth mapping criterion;
[0819] Determining that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource, determining the second type RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, and determining the second type RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0820] Determining that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource, determining the second type RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, and determining the first type RO, the second type RO, and / or the Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0821] Determining that the RO to be used is the first type of RO in the third RACH resource, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0822] Determining that the RO to be used is the first type of RO in the third RACH resource and the second type of RO in the third RACH resource, determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion;
[0823] Determining that the RO to be used is the first type RO in the third RACH resource and the second type RO in the third RACH resource, and determining the first type RO, the second type RO and / or the Preamble in the third RACH resource associated with the SSB based on a second mapping criterion;
[0824] Determining that the RO to be used is the first type of RO in the third RACH resource, the second type of RO in the third RACH resource, and the second type of RO in the second RACH resource, determining the second type of RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion;
[0825] Determine that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource, determine the second type RO and / or Preamble in the second RACH resource associated with the SSB based on the first mapping criterion, and determine the first type RO, the second type RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion.
[0826] In some embodiments, the first mapping criterion is the same as or different from the second mapping criterion.
[0827] In some embodiments, the first mapping criterion and / or the second mapping criterion include at least one of the following:
[0828] N SSBs are mapped to one RO, where N is a number greater than 0;
[0829] An SSB associated preamble.
[0830] In some embodiments, the second RACH resource and the third RACH resource satisfy one of the following conditions:
[0831] The first condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at the same time domain and / or frequency domain position, and the second type RO of the second RACH resource and the second type RO at the same time and frequency position of the third RACH resource contain the same preamble;
[0832] The second condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at the same time domain and / or frequency domain position, and the second type RO of the second RACH resource and the second type RO at the same time and frequency position of the third RACH resource contain different preambles;
[0833] The third condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at different time domain and / or frequency domain locations.
[0834] In some embodiments, the first condition further includes at least one of the following:
[0835] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0836] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions;
[0837] An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
[0838] In some embodiments, the second condition further includes at least one of the following:
[0839] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0840] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions;
[0841] An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
[0842] In some embodiments, the first condition further includes:
[0843] The second type RO in the third RACH resource is the same as the second type RO in the second RACH resource.
[0844] In some embodiments, the second condition further includes:
[0845] For the first type of terminal, the starting Preamble, the number of Preambles associated with an SSB and / or the Preamble index associated with an SSB in the second type of RO are configured.
[0846] In some embodiments, the third condition further includes one of the following:
[0847] In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position;
[0848] In the third RACH resource, the first type RO and the second type RO are located in different frequency domain locations.
[0849] In some embodiments, the random access RA is a contention-based random access CBRA or the RA is a non-contention-based random access CFRA.
[0850] In some embodiments, the CFRA is a CFRA triggered based on a higher layer or a CFRA triggered based on a physical downlink control channel PDCCH.
[0851] In some embodiments, the RA is a 2-step random access or the RA is a 4-step random access.
[0852] Figure 5a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 5a, the embodiment of the present disclosure relates to a communication method, which is executed by a communication system. The method includes:
[0853] Step S5101: The network device sends first information to the terminal;
[0854] The first information is used to indicate one of the following:
[0855] A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal;
[0856] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
[0857] In some embodiments, the optional implementation of step S5101 can refer to the optional implementation of the steps in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
[0858] In order to better understand the embodiments of the present disclosure, the technical solution of the present disclosure is further described below through four exemplary embodiments:
[0859] Example 1:
[0860] The embodiments in this Example 1 can also be collectively referred to as Solution 1.
[0861] In some embodiments, one set of RACH resources is configured for legacy UEs and SBFD aware UEs, referred to as the first RACH resource. There are two mapping relationships:
[0862] Mapping relationship 1-1: Map the SSB to the legacy valid RO (corresponding to the second type of RO) and Preamble according to the second mapping criterion, and determine the valid RO and Preamble associated with an SSB;
[0863] Mapping relationship 1-2: Map the SSB to an additional valid RO (corresponding to the first type of RO) and Preamble according to the first mapping criterion, and determine a valid RO and Preamble associated with an SSB.
[0864] In some embodiments, a mapping method is as shown in the following figure: Please refer to Figure 1d again, which shows the RO time domain and frequency domain positions, please refer to Figure 6a, which shows the mapping relationship 1-1, and please refer to Figure 6b, which shows the mapping relationship 1-2.
[0865] For example, there are 8 additional valid ROs, 4 legacy valid ROs, and 8 SSBs in the PRACH configuration period. The first mapping criterion and the second mapping criterion are the same. One SSB is mapped to one RO, and the number of preambles contained in the RO associated with one SSB is 16.
[0866] Exemplarily, SSB#0-7 are mapped to legacy valid ROs in slots #4, 9, 24, and 29.
[0867] Exemplarily, SSB#0-7 are mapped to additional valid ROs in time slots #2, 3, 7, and 8.
[0868] In some embodiments, which may be referred to as Solution 1-1: the SBFD aware UE determines whether the first RACH resource configuration includes an additional RO in the following manner.
[0869] Exemplarily, solution 1-1-1: implicitly indicating whether the first RACH resource includes an additional RO according to a configuration parameter in the first RACH resource.
[0870] Exemplarily, scheme 1-1-1-1: the first RACH resource differentially configures mapping criteria for additional RO and legacy RO, the legacy RO uses the first mapping criterion, and the additional RO uses the second mapping criterion, implicitly indicating that the first RACH resource includes the additional RO.
[0871] Exemplarily, scheme 1-1-1-2: the first RACH resource is differentially configured with frequency domain configuration of additional RO and legacy RO, implicitly indicating that the first RACH resource includes additional RO.
[0872] Exemplarily, scheme 1-1-1-3: the first RACH resource differentially configures the Preamble format of the additional RO and the legacy RO, implicitly indicating that the first RACH resource includes the additional RO.
[0873] Exemplarily, in solution 1-1-2: in the first RACH resource, a new configuration parameter (corresponding to the first configuration information) is added to explicitly indicate whether the first RACH resource includes an additional RO.
[0874] Exemplarily, solution 1-1-2-1: using a newly added configuration parameter to indicate whether the first RACH resource includes an additional RO.
[0875] Exemplarily, if there is an additional configuration parameter configuration display indication, the first RACH resource includes an additional RO.
[0876] Exemplarily, if there is no additional configuration parameter configuration display indication, the first RACH resource does not include the additional RO.
[0877] Exemplarily, the aforementioned solution 1-1-2 is used only when the configuration parameters in the first RACH resource cannot implicitly indicate whether the first RACH resource includes the additional RO.
[0878] In some embodiments, which may be referred to as Solution 1-2: SBFD aware UE determines the RO to be used by one of the following methods:
[0879] For example, Scheme 1-2-1: Add a new parameter RSRP threshold#1. When the RSRP of all SSBs is lower than RSRP threshold#1, use the following Option 1-2-1. When the RSRP of at least one SSB is not lower than RSRP threshold#1, determine whether to use the following Option 1-2-2 or the following Option 1-2-3 based on the protocol default, high-level configuration, or dynamic indication.
[0880] For example, in solution 1-2-2, the protocol defaults, high-layer configuration, or dynamic instruction uses Option 1-2-1, 1-2-2, or 1-2-3.
[0881] For example, in scheme 1-2-1 and scheme 1-2-2, protocol default or high-layer configuration or dynamic indication is applicable to CBRA and CFRA, and CFRA includes CFRA triggered by a high layer and CFRA triggered by a PDCCH order.
[0882] For example, the CFRA triggered by the PDCCH order may use other dynamic indication signaling or add new indication information in the PDCCH order to implement dynamic indication.
[0883] Exemplarily, the newly added indication information may use a reserved bit in the PDCCH order, for example, a reserved bit in the second configuration information.
[0884] Exemplarily, when the first RACH resource explicitly or implicitly indicates that no additional RO is included, Option 1-2-1 is used; when the first RACH resource explicitly or implicitly indicates that an additional RO is included, one of Option 1-2-1, Option 1-2-2, and Option 1-2-3 is determined to be used through Scheme 1-2-1 and / or Scheme 1-2-2.
[0885] Exemplarily, mapping relationship 1-1: SSB is mapped to legacy valid RO and Preamble according to the first mapping criterion.
[0886] Exemplarily, mapping relationship 1-2: mapping the SSB to the additional valid RO and Preamble according to the second mapping criterion.
[0887] For example, Option 1-2-1: the SBFD-aware UE uses the legacy valid RO and the mapping relationship 1-1.
[0888] At this time, the SBFD-aware UE considers that the additional RO is invalid or the additional RO is not used to be mapped to the SSB or the first RACH resource does not include the additional RO.
[0889] Applicable to scenarios with significant SBFD symbol interference. SBFD-aware UEs and legacy UEs use the same RO.
[0890] For example, Option 1-2-2: the SBFD-aware UE uses an additional valid RO and uses the mapping relationship 1-2.
[0891] The SBFD-aware UE considers the legacy RO to be invalid, or the legacy RO is not used to be mapped to the SSB, or the first RACH resource does not contain the legacy RO.
[0892] In this case, SBFD-aware UEs and legacy UEs use different ROs, reducing the probability of random access conflicts in legacy ROs. The base station can distinguish SBFD-aware UEs from legacy UEs by the location of the received RO and use this feature to optimize subsequent transmission processes during random access.
[0893] For example, Option 1-2-3: SBFD-aware UE uses additional valid RO and legacy valid RO.
[0894] In this case, the ROs used by SBFD-aware UEs and legacy UEs are different, reducing the probability of random access conflicts between additional ROs and legacy ROs. If an SBFD-aware UE uses additional ROs, the base station can determine that the UE is SBFD-aware and use this feature in subsequent random access procedures to optimize subsequent transmission processes.
[0895] Exemplarily, the second mapping criterion is the same as or different from the first mapping criterion. If they are the same, only the first mapping criterion needs to be configured.
[0896] Exemplarily, the first mapping criterion and / or the second mapping criterion includes mapping N SSBs to one RO, one SSB associated Preamble, and N is a positive number.
[0897] Exemplarily, in CBRA, the first mapping criterion and / or the second mapping criterion include mapping N SSBs to one RO, and one SSB being associated with one or more Preambles.
[0898] Exemplarily, in CFRA, the first mapping criterion and / or the second mapping criterion includes mapping N SSBs to one RO, and one SSB being associated with one Preamble.
[0899] Exemplarily, the frequency domain configurations of the additional RO and the legacy RO in the first RACH resource are the same or different.
[0900] Exemplarily, when the frequency domain configurations of the additional RO and the legacy RO are different, the frequency domain positions of the additional RO and the legacy RO are configured differently, such as at least one of the RO frequency domain starting position and the number of RO FDMs in the frequency domain are configured differently.
[0901] Exemplarily, the differentiated configuration of the RO frequency domain starting position may use one of the following methods:
[0902] Option 1: Configure the new frequency domain starting position of the additional RO;
[0903] Option 2: Configure the offset of the additional RO frequency domain start position relative to the legacy RO frequency domain start position;
[0904] Option 3: The interval N0 between the legacy RO and the first PRB of the UL BWP is determined based on the frequency domain starting position of the legacy RO. The interval N0 between the frequency domain starting position of the additional RO and the first PRB in the UL available frequency range on the SBFD symbol is also N0.
[0905] For example, the number of RO FDMs in the frequency domain may be configured differentially using one of the following methods:
[0906] Option 1: Configure the number of new RO FDMs for additional RO;
[0907] Option 2: Configure the difference between the number of RO FDMs of the additional RO and the number of RO FDMs of the legacy RO.
[0908] In some embodiments, in Scheme 1, the use of the additional RO and legacy RO is defined as one of the following:
[0909] Additional RO refers to an RO that includes at least one first SBFD symbol, and legacy RO refers to an RO that does not include the first SBFD symbol;
[0910] Option 1: The first SBFD symbol refers to the symbol configured as DL in TDD-UL-DL-ConfigCommon and configured as SBFD;
[0911] Option 2: The first SBFD symbol refers to a symbol in which TDD-UL-DL-ConfigCommon is configured as DL or flexible and is configured as SBFD.
[0912] In some embodiments, Scheme 1 can be used for 4-step RA and 2-step RA.
[0913] In some embodiments, Scheme 1 may be used for CBRA and CFRA.
[0914] Example 2:
[0915] The embodiments in this Example 2 can also be collectively referred to as Solution 2.
[0916] In some embodiments, which can also be referred to as Solution 2, two sets of RACH resources are configured, namely the second RACH resource and the third RACH resource, which are used for legacy UEs and SBFD aware UEs respectively. In this case, there are four mapping relationships:
[0917] Mapping relationship 2-1: Map the SSB to the legacy valid RO and Preamble of the second RACH resource according to the first mapping criterion; determine a valid RO and Preamble associated with an SSB;
[0918] Mapping relationship 2-2: Map the SSB to the legacy valid RO and Preamble of the third RACH resource according to the second mapping criterion; determine the valid RO and Preamble associated with an SSB;
[0919] Mapping relationship 2-2-1: Map the SSB to the legacy valid RO and Preamble of the third RACH resource according to the first mapping criterion; determine the valid RO and Preamble associated with an SSB;
[0920] Mapping relationship 2-3: Map the SSB to the additional valid RO and Preamble of the third RACH resource according to the second mapping criterion; determine the valid RO and Preamble associated with an SSB;
[0921] Mapping relationship 2-4: jointly map the SSB to the additional valid RO, legacy valid RO, and Preamble of the third RACH resource according to the second mapping criterion; determine a valid RO and Preamble associated with an SSB.
[0922] For example, one mapping method is shown in the following figure: Please refer to Figure 6c, which shows the RO time-frequency positions of the second RACH resource and the third RACH resource. Please refer to Figure 6a again, which shows mapping relationship 2-1. Please refer to Figure 6a again, which shows mapping relationship 2-2. Please refer to Figure 6b, which shows mapping relationship 2-3. Please refer to Figure 1e, which shows mapping relationship 2-4. When the first mapping relationship and the second mapping relationship are the same, please refer to Figure 6a again, which shows mapping relationship 2-2-1.
[0923] For example, there are 8 SSBs, the first mapping criterion and the second mapping criterion are the same, one SSB is mapped to one RO, and the number of preambles included in the RO associated with one SSB is 16.
[0924] Exemplarily, the second RACH resource: there are 4 legacy valid ROs in the PRACH configuration period, the second RACH resource: there are 8 additional valid ROs in the PRACH configuration period, and there are 4 legacy valid ROs.
[0925] For example, mapping relationship 2-1: SSBs #0 to 7 are mapped to legacy valid ROs in time slots #4, 9, 24, and 29 of the second RACH resource.
[0926] For example, mapping relationship 2-2: SSBs #0 to 7 are mapped to legacy valid ROs in time slots #4, 9, 24, and 29 of the third RACH resource.
[0927] Exemplarily, mapping relationship 2-3: SSB#0-7 are mapped to additional valid ROs in time slots #2, 3, 7, and 8 of the third RACH resource.
[0928] Exemplarily, mapping relationship 2-4: SSBs #0 to 7 are mapped to legacy valid ROs and additional valid ROs in time slots #2, 3, 4, and 7 of the third RACH resource.
[0929] In some embodiments, solution 2-1: the SBFD aware UE determines that the third RACH resource configuration is for the SBFD aware UE by distinguishing in one of the following ways.
[0930] For example, solution 2-1-1: the third RACH resource configuration is determined by name to be used for the SBFD aware UE.
[0931] Exemplarily, the name of the third RACH resource configuration is different from that of the second RACH resource configuration. For example, the name of the third RACH resource configuration indicates that it is used for SBFD aware UE.
[0932] Exemplarily, the third RACH resource configuration is configured in AdditionalRACH-Config, and the name indicates that it is used for SBFD aware UE.
[0933] For example, solution 2-1-2: determine the third RACH resource configuration for SBFD aware UE through FeatureCombination parameters.
[0934] Exemplarily, the third RACH resource configuration is configured in AdditionalRACH-Config, and the third RACH resource is configured with a FeatureCombination parameter including the SBFD feature, indicating that the third RACH resource is used for SBFD aware UE.
[0935] In some embodiments, Solution 2-2: The SBFD aware UE determines the RO to be used by one of the following methods:
[0936] For example, solution 2-2-1: configure RSRP threshold #1,
[0937] For example, when the RSRP of all SSBs is lower than RSRP threshold#1, Option 2-4 or 2-5 is used. The use of one of Option 2-4 and 2-5 may be determined according to protocol default, high-level configuration, or dynamic indication.
[0938] Exemplarily, Option 2-1, 2-2, or 2-3 is used when the RSRP of at least one SSB is not lower than RSRP threshold#1. The use of one of Option 2-1, 2-2, or 2-3 can be determined based on protocol default, high-level configuration, or dynamic indication.
[0939] For example, solution 2-2-2: the protocol defaults, high-layer configuration, or dynamic indication uses one of Option 2-1, 2-2, 2-3, 2-4, or 2-5.
[0940] For example, in scheme 2-2-1 and scheme 2-2-2, protocol default or high-layer configuration or dynamic indication is applicable to CBRA and CFRA, and CFRA includes CFRA triggered by high layer and CFRA triggered by PDCCH order.
[0941] For example, when dynamic indication is used in CFRA triggered by a PDCCH order, other dynamic indication signaling may be used or indication information may be added to the PDCCH order to implement the dynamic indication.
[0942] Exemplarily, the bit of the newly added indication information in the PDCCH order may use the reserved bit in the PDCCH order.
[0943] For example, Option 2-1: the SBFD-aware UE uses the additional valid RO in the third RACH resource.
[0944] Option 2-1-1: Use mapping relationship 2-3.
[0945] At this time, the SBFD-aware UE considers that the legacy RO in the second RACH resource is unavailable.
[0946] At this time, the SBFD-aware UE considers that the legacy RO in the third RACH resource is invalid or the legacy RO is not used to be mapped to the SSB or does not contain the legacy RO.
[0947] For example, Option 2-2: the SBFD-aware UE uses the additional valid RO and the legacy valid RO in the third RACH resource.
[0948] Option 2-2-1: Use mapping relationship 2-2 and mapping relationship 2-3.
[0949] Option 2-2-2: Use mapping relationship 2-4.
[0950] Option 2-2-3: Use mapping relationship 2-2-1 and mapping relationship 2-3.
[0951] At this time, the SBFD-aware UE considers that the legacy RO in the second RACH resource is unavailable.
[0952] For example, Option 2-3: the SBFD-aware UE uses the additional valid RO and legacy valid RO in the third RACH resource, and the legacy valid RO in the second RACH resource.
[0953] Option 2-3-1: Use mapping relationship 2-1, mapping relationship 2-2, and mapping relationship 2-3.
[0954] Option 2-3-2: Use mapping relationship 2-1 and mapping relationship 2-4.
[0955] Option 2-3-3: Use mapping relationship 2-1, mapping relationship 2-2-1, and mapping relationship 2-3.
[0956] For example, Option 2-4: SBFD-aware UE uses the legacy valid RO in the third RACH resource.
[0957] Option 2-4-1: Use mapping relationship 2-2.
[0958] Option 2-4-2: Use mapping relationship 2-2-1.
[0959] At this time, the SBFD-aware UE considers that the legacy RO in the second RACH resource is unavailable;
[0960] At this time, the SBFD-aware UE considers that the additional RO in the third RACH resource is invalid or the additional RO is not used to be mapped to the SSB or does not contain the additional RO.
[0961] For example, Option 2-5: the SBFD-aware UE uses the legacy valid RO in the third RACH resource and the legacy valid RO in the second RACH resource.
[0962] For example, Option 2-5-1: use mapping relationship 2-1 and mapping relationship 2-2.
[0963] For example, Option 2-5-2: use mapping relationship 2-1 and mapping relationship 2-4.
[0964] For example, Option 2-5-3: use mapping relationship 2-1 and mapping relationship 2-2-1.
[0965] Exemplarily, at this time, the SBFD-aware UE considers that the additional RO in the third RACH resource is invalid or the additional RO is not used to be mapped to the SSB or does not contain the additional RO.
[0966] Illustratively, in Options 2-1, 2-2, 2-3, 2-4, and 2-5, the legacy UE uses the legacy valid RO in the second RACH resource and uses mapping relationship 2-1.
[0967] In some embodiments, the mapping criterion of the second RACH resource configuration is the second mapping criterion, and the mapping criterion of the third RACH resource configuration is the first mapping criterion.
[0968] In some embodiments, the first mapping criterion and / or the second mapping criterion includes mapping N SSBs to one RO and one SSB associated Preamble.
[0969] In some embodiments, the first mapping criterion is the same as or different from the second mapping criterion. If they are the same, the third RACH resource may not be configured with the first mapping criterion, and the second mapping criterion in the second RACH resource configuration may be used.
[0970] In some embodiments, the two sets of RACH resources meet one of the following conditions:
[0971] The first condition is that the legacy ROs in the two sets of RACH resources are located at the same time-frequency position and contain the same preamble (shared legacy RO and same preambles in shared legacy RO);
[0972] Second condition: The legacy ROs in the two sets of RACH resources are located at the same time-frequency position, but contain different preambles (shared legacy RO and separate preambles in shared legacy RO);
[0973] Third condition: The time domain and / or frequency domain positions of the legacy ROs in the two sets of RACH resources are different, and whether the preambles used by the third RACH resource and the second RACH resource are the same is not limited (Separate legacy RO).
[0974] For example, in the first and second conditions:
[0975] Exemplarily, in the third RACH resource, the legacy RO and the additional RO are located at the same frequency domain position.
[0976] Exemplarily, in the third RACH resource, the frequency domain position where the RO is located may not be configured, and the RO frequency domain configuration in the second RACH configuration is used.
[0977] Exemplarily, in the third RACH resource, the legacy RO and the additional RO are located at different frequency domain positions.
[0978] For example, in the third RACH resource, the frequency domain position of the additional RO can be configured separately, and the solution of frequency domain differentiated configuration of the additional RO and the legacy RO in solution 1 can be used.
[0979] Exemplarily, the ROs available to SBFD aware UEs in Shared legacy ROs and / or additional ROs may be configured. For example, when an SSB is associated with N (N is greater than 1) valid ROs, SharedRO-MaskIndex is used to indicate that the SBFD aware UE may use one or more of the N ROs.
[0980] In some embodiments, in the first condition, the legacy valid RO in the third RACH resource and the legacy valid RO in the second RACH resource are the same resource.
[0981] For example, the first mapping criterion is consistent with the second mapping criterion, Option 2-2 should use Option 2-2-1, Option 2-3 should use Option 2-3-1; Option 2-4 should use Option 2-4-1, and Option 2-5 should use Option 2-5-1.
[0982] For example, if the first mapping criterion is inconsistent with the second mapping criterion, Option 2-2 should use Option 2-2-3, Option 2-3 should use Option 2-3-3; Option 2-4 should use Option 2-4-2, and Option 2-5 should use Option 2-5-3.
[0983] .
[0984] For example, in condition 1:
[0985] For SBFD aware UE, configure the starting preamble in the Shared legacy RO and / or the number of preambles associated with an SSB and / or the preamble index associated with an SSB
[0986] Exemplarily, in the third RACH resource, the SBFD aware UE uses the same or different Preambles in the additional RO and the Shared legacy RO.
[0987] For example, if the Preambles are different, the SBFD aware UE in the additional RO may use the Preambles used by the SBFD aware UE and the legacy UE in the Shared legacy RO at the same time.
[0988] For example, in condition 2:
[0989] Exemplarily, in the third RACH resource, the legacy RO and the additional RO are located at the same frequency domain position.
[0990] For example, in the third RACH resource, an RO frequency domain configuration is configured for legacy RO and additional RO
[0991] Exemplarily, the frequency domain positions of the ROs in the third RACH resource and the second RACH resource are configured differently, such as differentially configuring at least one of the RO frequency domain starting position and the number of RO FDMs in the frequency domain.
[0992] Exemplarily, the differentiated configuration of the RO frequency domain starting position may use one of the following methods:
[0993] Option 1: Configure the new frequency domain starting position of the RO in the third RACH resource;
[0994] Option 2: Configure the offset of the frequency domain starting position of the RO in the third RACH resource relative to the frequency domain starting position of the RO in the first RACH resource.
[0995] For example, the number of RO FDMs in the frequency domain may be configured differentially using one of the following methods:
[0996] Option 1: Configure the new RO FDM number of RO in the third RACH resource;
[0997] Option 2: Configure the difference between the number of RO FDMs in the third RACH resource and the number of RO FDMs in the second RACH resource;
[0998] Exemplarily, in the third RACH resource, the legacy RO and the additional RO are located in different frequency domain positions.
[0999] Exemplarily, in the third RACH resource, the frequency domain configuration of the legacy RO and the frequency domain configuration of the additional RO are configured respectively.
[1000] In some embodiments, in Scheme 2, the use of the additional RO and legacy RO is defined as follows:
[1001] Additional RO refers to an RO that includes at least one first SBFD symbol, and legacy RO refers to an RO that does not include the first SBFD symbol;
[1002] Option 1: The first SBFD symbol refers to the symbol configured as DL in TDD-UL-DL-ConfigCommon and configured as SBFD;
[1003] Option 2: The first SBFD symbol refers to a symbol in which TDD-UL-DL-ConfigCommon is configured as DL or flexible and is configured as SBFD.
[1004] In some embodiments, Scheme 2 can be used for both 4-step RA and 2-step RA.
[1005] In some embodiments, Scheme 2 may be used for CBRA and CFRA.
[1006] Example 3:
[1007] Referring to FIG. 6 d , a communication method is provided, the method comprising:
[1008] Step S6101: The terminal receives first information sent by the network device, where the first information configures the time-frequency position of the RO, the time-domain position of the SSB, and the mapping relationship between the SSB and the valid RO;
[1009] In some embodiments, the first information includes RACH resource configuration information of an SBFD aware UE or RACH resource configuration information of an SBFD aware UE and a legacy UE.
[1010] Step S6102: Determine the SSBs associated with the valid RO and the preamble used by each SSB based on the first information.
[1011] In some embodiments, according to Solution 1 and Solution 2, the SBFD aware UE determines the RO and Preamble associated with the SSB, and determines the RO to be used.
[1012] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.
[1013] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.
[1014] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.
[1015] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.
[1016] Figure 7a is a schematic diagram of the structure of a terminal 7100 proposed in an embodiment of the present disclosure. As shown in Figure 7a, the terminal 7100 may include: at least one of a transceiver module 7101, a processing module 7102, etc. In some embodiments, the transceiver module is used to receive the first information. Optionally, the transceiver module 7101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal 7100 in any of the above methods, which will not be repeated here. Optionally, the processing module 7102 is used to perform at least one of the other steps performed by the terminal 7100 in any of the above methods, which will not be repeated here.
[1017] Figure 7b is a schematic diagram of the structure of a network device 7200 proposed in an embodiment of the present disclosure. As shown in Figure 7b, the network device 7200 may include: at least one of a transceiver module 7201, a processing module 7202, etc. In some embodiments, the transceiver module 7201 is used to receive the first information. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the network device 7200 in any of the above methods, which will not be repeated here. Optionally, the processing module 7202 is used to perform at least one of the other steps performed by the network device 7200 in any of the above methods, which will not be repeated here.
[1018] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.
[1019] Figure 8a is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.
[1020] As shown in Figure 8a, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, baseband chip, terminal device, terminal device chip, DU or CU, etc.), execute programs, and process program data. The communication device 8100 is used to perform any of the above methods.
[1021] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.
[1022] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8101 performs at least one of the other steps.
[1023] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.
[1024] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102. The interface circuit 8104 may be configured to receive signals from the memory 8102 or other devices, and may be configured to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.
[1025] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
[1026] FIG8b is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 8200 shown in FIG8b, but the present disclosure is not limited thereto.
[1027] The chip 8200 includes one or more processors 8201 , and the chip 8200 is configured to execute any of the above methods.
[1028] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and can be used to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.
[1029] In some embodiments, the interface circuit 8202 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101, step S3101, but not limited thereto), and the processor 8201 executes at least one of the other steps.
[1030] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.
[1031] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be located outside the chip 8200.
[1032] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.
[1033] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.
[1034] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.
Claims
1. A communication method, characterized in that: The method is performed by a first type terminal, and the method includes: receiving first information sent by a network device; The first information is used to indicate one of the following: A first random access channel RACH resource for random access RA of a first type of terminal and a second type of terminal; The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
2. The method according to claim 1, characterized in that The first type of terminal is a terminal that can identify the sub-band full-duplex (SBFD) time-frequency configuration; the second type of terminal is a terminal that cannot identify the SBFD time-frequency configuration.
3. The method according to claim 2, characterized in that The first RACH resource includes a first type of random access opportunity RO and / or a second type of random access opportunity RO; or, the second RACH resource includes a second type of RO, and the third RACH resource includes a first type of RO and / or a second type of RO; wherein the first type of RO is an RO including a first type of subband full-duplex SBFD time unit; and the second type of RO is an RO not including a first type of SBFD time unit.
4. The method according to claim 3, characterized in that The first information is used to indicate the first RACH resource; the method further includes: It is determined whether the first RACH resource includes or does not include a first type of RO.
5. The method according to claim 3 or 4, characterized in that The first type of SBFD time unit is one of the following: The time unit is configured as a downlink (DL) time unit by the time division duplex (TDD) uplink and downlink common configuration (TDD-UL-DL-ConfigCommon) and is also configured as a SBFD time unit. The time unit is configured by TDD-UL-DL-ConfigCommon as a DL time unit or a flexible time unit and is configured as a SBFD time unit.
6. The method according to claim 4, characterized in that The determining whether the first RACH resource includes or does not include a first type of random access opportunity RO includes: Based on the first configuration information included in the first information, it is determined whether the first RACH resource includes or does not include the first type of RO.
7. The method according to claim 6, characterized in that The condition that the first RACH resource includes the first type of RO includes at least one of the following: The first configuration information includes a first mapping criterion and a second mapping criterion, the first mapping criterion and the second mapping criterion are different, the first mapping criterion is a mapping criterion between the first type RO and the synchronization signal block SSB, and the second mapping criterion is a mapping criterion between the second type RO and the SSB; The first configuration information includes first resource configuration information and second resource configuration information, the first resource configuration information and the second resource configuration information are different, the first resource configuration information is the time domain and / or frequency domain configuration information of the first type of RO, and the second resource configuration information is the time domain and / or frequency domain configuration information of the second type of RO; The first configuration information includes first preamble format configuration information and second preamble format configuration information, the first preamble format configuration information and the second preamble format configuration information are different, and the first preamble format configuration information is The information of the Preamble format of the first type RO, and the second preamble format is configured as the information of the Preamble format of the second type RO.
8. The method according to claim 6, characterized in that The first configuration information indicates whether the first RACH resource includes or does not include the first type of RO.
9. The method according to claim 1, characterized in that The first information is used to indicate the first RACH resource; the method further includes: Determining an RO used by the first type of terminal; The RO is the RO in the first RACH resource.
10. The method according to claim 9, characterized in that The determining the RO used by the first type of terminal includes: The RO used by the first type of terminal is determined based on a magnitude relationship between the wireless transmission quality of the received SSB and a first threshold.
11. The method according to claim 10, characterized in that The determining, based on a magnitude relationship between the wireless transmission quality of the received SSB and a first threshold, the RO used by the first type of terminal includes at least one of the following: Determining that the wireless transmission quality of all received SSBs is less than the first threshold, and determining that the RO to be used is the second type RO; Determining that the wireless transmission quality of at least one received SSB is not less than the first threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO; Determine that the wireless transmission quality of at least one received SSB is not less than the first threshold, and determine, based on protocol information, high-layer configuration information, or dynamic indication information, whether the RO to be used is a first-category RO or a second-category RO.
12. The method according to claim 9, characterized in that The determining of the RO used by the first type of terminal includes at least one of the following: Determining, based on protocol information, high-layer configuration information, or dynamic indication information, that the RO to be used is a second-category RO; Determining, based on protocol information, high-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO; Based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO to be used is a first type RO or a second type RO.
13. The method according to claim 11 or 12, characterized in that: The method further comprises one of the following: Determining that the RO to be used is the second type RO, and determining the second type RO and / or Preamble associated with the SSB based on a second mapping criterion; Determining that the RO to be used is the first type RO, and determining the first type RO and / or Preamble associated with the SSB based on a first mapping criterion; The RO used is determined to be a first type RO and a second type RO, the first type RO and / or Preamble associated with the SSB is determined based on a first mapping criterion, and the second type RO and / or Preamble associated with the SSB is determined based on a second mapping criterion.
14. The method according to claim 13, characterized in that The time domain and / or frequency domain configurations of the first type RO and the second type RO are the same or different.
15. The method according to claim 1, wherein The first information is used to indicate the second RACH resource and the third RACH resource; the method further includes: Determine the third RACH resource as a RACH resource for the first type of terminal.
16. The method according to claim 15, characterized in that The determining that the third RACH resource is a RACH resource for the first type of terminal includes one of the following: Determining, based on a name of the configuration of the third RACH resource, that the third RACH resource is a RACH resource for the first type of terminal; wherein the name of the configuration of the third RACH resource is used to indicate that the third RACH resource is for the first type of terminal; Based on a feature combination parameter, the third RACH resource is determined to be a RACH resource for the first type of terminal; wherein, if the feature combination parameter includes an SBFD feature, the third RACH resource is used for the first type of terminal.
17. The method according to claim 1, wherein The first information is used to indicate the second RACH resource and the third RACH resource; the method further includes: Determining an RO used by the first type of terminal; The RO is an RO in the second RACH resource and / or the third RACH resource.
18. The method according to claim 17, characterized in that The determining the RO used by the first type of terminal includes: The RO used by the first type of terminal is determined based on a magnitude relationship between the wireless transmission quality of the received SSB and a second threshold.
19. The method according to claim 18, characterized in that The determining, based on a magnitude relationship between the wireless transmission quality of the received SSB and a second threshold, the RO used by the first type of terminal includes at least one of the following: determining that the wireless transmission quality of all received SSBs is less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a second type RO in the third RACH resource; determining that the wireless transmission quality of all received SSBs is less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource; determining that the wireless transmission quality of at least one received SSB is not less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first type RO in a third RACH resource; determining that the wireless transmission quality of at least one received SSB is not less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the first type RO in the third RACH resource and the second type RO in the third RACH resource; Determine that the wireless transmission quality of at least one received SSB is not less than the second threshold, and based on protocol information, high-layer configuration information or dynamic indication information, determine that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource.
20. The method according to claim 17, wherein The determining of the RO used by the first type of terminal includes one of the following: Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a second type of RO in the third RACH resource; Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource; Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO in a third RACH resource; Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-type RO in a third RACH resource or a second-type RO in the third RACH resource; Based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource and the second type RO in the second RACH resource.
21. The method according to claim 19 or 20, characterized in that The method further comprises one of the following: Determine that the RO to be used is the second type of RO in the third RACH resource, and determine the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion; Determining that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource, determining the second type RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, and determining the second type RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion; Determining that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource, determining the second type RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, and determining the first type RO, the second type RO, and / or the Preamble in the third RACH resource associated with the SSB based on a second mapping criterion; Determining that the RO to be used is the first type of RO in the third RACH resource, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion; Determining that the RO to be used is the first type of RO in the third RACH resource and the second type of RO in the third RACH resource, determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion; Determining that the RO to be used is the first type RO in the third RACH resource and the second type RO in the third RACH resource, and determining the first type RO, the second type RO and / or the Preamble in the third RACH resource associated with the SSB based on a second mapping criterion; Determining that the RO to be used is the first type of RO in the third RACH resource, the second type of RO in the third RACH resource, and the second type of RO in the second RACH resource, determining the second type of RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion; The RO to be used is determined to be the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the The second type of RO in the second RACH resource is determined based on the first mapping criterion, and the second type of RO and / or Preamble in the second RACH resource associated with the SSB is determined based on the second mapping criterion, and the first type of RO, the second type of RO and / or Preamble in the third RACH resource associated with the SSB is determined based on the second mapping criterion.
22. The method according to claim 13 or claim 21, characterized in that The first mapping criterion is the same as or different from the second mapping criterion.
23. The method according to claim 13 or claim 21, characterized in that: The first mapping criterion and / or the second mapping criterion include at least one of the following: N SSBs are mapped to one RO, where N is a number greater than 0; An SSB associated preamble.
24. The method according to claim 1, wherein The second RACH resource and the third RACH resource meet one of the following conditions: The first condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at the same time domain and / or frequency domain position, and the second type RO of the second RACH resource and the second type RO at the same time and frequency position of the third RACH resource contain the same preamble; The second condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at the same time domain and / or frequency domain position, and the second type RO of the second RACH resource and the second type RO at the same time and frequency position of the third RACH resource contain different preambles; The third condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at different time domain and / or frequency domain locations.
25. The method according to claim 24, characterized in that The first condition also includes at least one of the following: In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position; In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions; An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
26. The method according to claim 24, characterized in that The second condition also includes at least one of the following: In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position; In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions; An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
27. The method according to claim 24, characterized in that The first condition further includes: the second type RO in the third RACH resource is the same as the second type RO in the second RACH resource.
28. The method according to claim 24, characterized in that The second condition further includes: for the first type terminal, configuring a starting Preamble, a number of Preambles associated with an SSB, and / or a Preamble index associated with an SSB in the second type RO.
29. The method according to claim 24, wherein The third condition also includes one of the following: in the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position; in the third RACH resource, the first type RO and the second type RO are located at different frequency domain positions.
30. The method according to claim 1, wherein The random access RA is contention-based random access CBRA or the RA is non-contention-based random access CFRA.
31. The method according to claim 30, wherein The CFRA is a CFRA triggered based on a higher layer or a CFRA triggered based on a physical downlink control channel PDCCH.
32. The method according to claim 1, wherein The RA is a 2-step random access or the RA is a 4-step random access.
33. The method according to claim 3, wherein The first information includes third configuration information of the first RACH resource, and the method further includes: The first RACH resource is determined based on the third configuration information.
34. The method according to claim 33, wherein The determining the first RACH resource based on the third configuration information includes: Determine a time domain position of the first type of RO in the first RACH resource based on the first RACH configuration index prach-ConfigurationIndex indicated by the third configuration information and a first predetermined mapping relationship.
35. The method according to claim 3, wherein The first information includes fourth configuration information of the third RACH resource, and the method further includes: The third RACH resource is determined based on the fourth configuration information.
36. The method according to claim 35, characterized in that The determining, based on the fourth configuration information, the third RACH resource includes one of the following: Determine the time domain position of the first type RO in the third RACH resource based on the third RACH configuration index prach-ConfigurationIndex indicated by the fourth configuration information and a first predetermined mapping relationship; The time domain position of the first type RO and the time domain position of the second type RO in the third RACH resource are determined based on the third RACH configuration index prach-ConfigurationIndex indicated by the fourth configuration information and a first predetermined mapping relationship.
37. The method according to claim 34 or 36, characterized in that The method further comprises: The first predetermined mapping relationship is determined.
38. The method according to claim 37, wherein The determining of the first predetermined mapping relationship includes one of the following: Determining the first predetermined mapping relationship based on the communication protocol rule information; Determining the first predetermined mapping relationship based on the high-level configuration information; The first predetermined mapping relationship is determined based on the indication information dynamically sent by the network device.
39. The method according to claim 37, wherein The determining the first predetermined mapping relationship includes: Determining the first predetermined mapping relationship based on a type of a frequency range FR in which the first RACH resource and / or the third RACH resource are located; Here, FR is frequency range 1 FR1 or frequency range 2 FR2.
40. The method according to claim 39, wherein The determining the first predetermined mapping relationship based on a type of a frequency range FR in which the first RACH resource and / or the third RACH resource are located includes: Determining that the first RACH resource or the third RACH resource is in FR1, and the first predetermined mapping relationship is one of the following: A second predetermined mapping relationship, where the second predetermined mapping relationship is used for configuration of random access for paired spectrum or supplementary uplink in FR1; a third predetermined mapping relationship, where the third predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR1; A fourth predetermined mapping relationship is used for configuring random access of the non-paired spectrum in FR1 of the first type terminal.
41. The method according to claim 39, wherein The determining the first predetermined mapping relationship based on a type of a frequency range FR in which the first RACH resource and / or the third RACH resource are located includes: Determining that the first RACH resource or the third RACH resource is in FR2, and the first predetermined mapping relationship is one of the following: a fifth predetermined mapping relationship, where the fifth predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR2; A sixth predetermined mapping relationship is used for configuring random access of the first type terminal in the non-paired spectrum in FR2.
42. The method according to claim 40 or 41, characterized in that The second predetermined mapping relationship, the third predetermined mapping relationship, the fourth predetermined mapping relationship, the fifth predetermined mapping relationship and / or the sixth predetermined mapping relationship are mapping relationships determined according to protocol rule information.
43. A communication method, characterized in that: The method is performed by a network device, and includes: Sending first information to the terminal; The first information is used to indicate one of the following: A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal; The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
44. The method according to claim 43, wherein The first type of terminal is a terminal that can identify the sub-band full-duplex (SBFD) time-frequency configuration; the second type of terminal is a terminal that cannot identify the SBFD time-frequency configuration.
45. The method according to claim 44, wherein The first RACH resource includes a first type of random access opportunity RO and / or a second type of random access opportunity RO; or, the second RACH resource includes a second type of RO, and the third RACH resource includes a first type of RO and / or a second type of RO; wherein the first type of RO is an RO including a first type of subband full-duplex SBFD time unit; and the second type of RO is an RO not including a first type of SBFD time unit.
46. The method according to claim 45, characterized in that The first information is used to indicate the first RACH resource; the method further includes: It is determined whether the first RACH resource includes or does not include a first type of RO.
47. The method according to claim 45 or 46, characterized in that The first type of SBFD time unit is one of the following: The time unit is configured as a downlink (DL) time unit by the time division duplex (TDD) uplink and downlink common configuration (TDD-UL-DL-ConfigCommon) and is also configured as a SBFD time unit. The time unit configured by TDD-UL-DL-ConfigCommon as a DL time unit or a flexible time unit and configured as a SBFD time unit.
48. The method according to claim 46, wherein The determining whether the first RACH resource includes or does not include a first type of random access opportunity RO includes: Based on the first configuration information included in the first information, it is determined whether the first RACH resource includes or does not include the first type of RO.
49. The method according to claim 48, characterized in that The condition that the first RACH resource includes the first type of RO includes at least one of the following: The first configuration information includes a first mapping criterion and a second mapping criterion, the first mapping criterion and the second mapping criterion are different, the first mapping criterion is a mapping criterion between the first type RO and the synchronization signal block SSB, and the second mapping criterion is a mapping criterion between the second type RO and the SSB; The first configuration information includes first resource configuration information and second resource configuration information, the first resource configuration information and the second resource configuration information are different, the first resource configuration information is the time domain and / or frequency domain configuration information of the first type of RO, and the second resource configuration information is the time domain and / or frequency domain configuration information of the second type of RO; The first configuration information includes first preamble format configuration information and second preamble format configuration information, the first preamble format configuration information and the second preamble format configuration information are different, the first preamble format configuration information is the Preamble format information of the first type RO, and the second preamble format configuration is the Preamble format information of the second type RO.
50. The method according to claim 48, wherein The first configuration information indicates whether the first information includes or does not include the first type of RO.
51. The method according to claim 43, wherein The first information is used to indicate the first RACH resource; the method further includes: Determining an RO used by the first type of terminal; The RO is the RO in the first RACH resource.
52. The method according to claim 51, characterized in that The determining the RO used by the first type of terminal includes: The RO used by the first type of terminal is determined based on a magnitude relationship between the wireless transmission quality of the received SSB and a first threshold.
53. The method according to claim 52, characterized in that The determining, based on a magnitude relationship between the wireless transmission quality of the received SSB and a first threshold, the RO used by the first type of terminal includes at least one of the following: Determining that the wireless transmission quality of all received SSBs is less than the first threshold, and determining that the RO to be used is the second type RO; Determine that the wireless transmission quality of at least one received SSB is not less than the first threshold, based on protocol information, high-level configuration Configuration information or dynamic indication information, determining that the RO to be used is a first type RO; Determine that the wireless transmission quality of at least one received SSB is not less than the first threshold, and determine, based on protocol information, high-layer configuration information, or dynamic indication information, whether the RO to be used is a first-category RO or a second-category RO.
54. The method according to claim 51, characterized in that The determining of the RO used by the first type of terminal includes at least one of the following: Determining, based on protocol information, high-layer configuration information, or dynamic indication information, that the RO to be used is a second-category RO; Determining, based on protocol information, high-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO; Based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO to be used is a first type RO or a second type RO.
55. The method according to claim 53 or 54, characterized in that The method further comprises one of the following: Determining that the RO to be used is the second type RO, and determining the second type RO and / or Preamble associated with the SSB based on a second mapping criterion; Determining that the RO to be used is the first type RO, and determining the first type RO and / or Preamble associated with the SSB based on a first mapping criterion; The RO used is determined to be a first type RO and a second type RO, the first type RO and / or Preamble associated with the SSB is determined based on a first mapping criterion, and the second type RO and / or Preamble associated with the SSB is determined based on a second mapping criterion.
56. The method according to claim 55, characterized in that The time domain and / or frequency domain configurations of the first type RO and the second type RO are the same or different.
57. The method according to claim 43, wherein The first information is used to indicate the second RACH resource and the third RACH resource; the method further includes: Determine the third RACH resource as a RACH resource for the first type of terminal.
58. The method according to claim 57, wherein The determining that the third RACH resource is a RACH resource for the first type of terminal includes one of the following: Determining, based on a name of the configuration of the third RACH resource, that the third RACH resource is a RACH resource for the first type of terminal; wherein the name of the configuration of the third RACH resource is used to indicate that the third RACH resource is for the first type of terminal; Based on a feature combination parameter, the third RACH resource is determined to be a RACH resource for the first type of terminal; wherein, if the feature combination parameter includes an SBFD feature, the third RACH resource is used for the first type of terminal.
59. The method according to claim 43, wherein The first information is used to indicate the second RACH resource and the third RACH resource; the method further includes: Determining an RO used by the first type of terminal; The RO is an RO in the second RACH resource and / or the third RACH resource.
60. The method according to claim 59, wherein The determining the RO that can be used by the first type of terminal includes: The RO used by the first type of terminal is determined based on a magnitude relationship between the wireless transmission quality of the received SSB and a second threshold.
61. The method according to claim 60, characterized in that The determining, based on a magnitude relationship between the wireless transmission quality of the received SSB and a second threshold, the RO used by the first type of terminal includes at least one of the following: determining that the wireless transmission quality of all received SSBs is less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a second type RO in the third RACH resource; determining that the wireless transmission quality of all received SSBs is less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource; determining that the wireless transmission quality of at least one received SSB is not less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first type RO in a third RACH resource; determining that the wireless transmission quality of at least one received SSB is not less than the second threshold, and determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the first type RO in the third RACH resource and the second type RO in the third RACH resource; Determine that the wireless transmission quality of at least one received SSB is not less than the second threshold, and based on protocol information, high-layer configuration information or dynamic indication information, determine that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource.
62. The method according to claim 59, wherein The determining of the RO used by the first type of terminal includes one of the following: Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a second type of RO in the third RACH resource; Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource; Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-category RO in a third RACH resource; Determining, based on protocol information, higher-layer configuration information, or dynamic indication information, that the RO to be used is a first-type RO in a third RACH resource or a second-type RO in the third RACH resource; Based on protocol information, high-layer configuration information or dynamic indication information, it is determined that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource and the second type RO in the second RACH resource.
63. The method according to claim 61 or 62, characterized in that The method further comprises one of the following: Determining that the RO to be used is the second type of RO in the third RACH resource, and determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a fourth mapping criterion; Determine that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource, determine the second type RO and / or Preamble in the second RACH resource associated with the SSB based on the first mapping criterion and based on Determine the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion; Determining that the RO to be used is the second type RO in the third RACH resource and the second type RO in the second RACH resource, determining the second type RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, and determining the first type RO, the second type RO, and / or the Preamble in the third RACH resource associated with the SSB based on a second mapping criterion; Determining that the RO to be used is the first type of RO in the third RACH resource, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion; Determining that the RO to be used is the first type of RO in the third RACH resource and the second type of RO in the third RACH resource, determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion; Determining that the RO to be used is the first type RO in the third RACH resource and the second type RO in the third RACH resource, and determining the first type RO, the second type RO and / or the Preamble in the third RACH resource associated with the SSB based on a second mapping criterion; Determining that the RO to be used is the first type of RO in the third RACH resource, the second type of RO in the third RACH resource, and the second type of RO in the second RACH resource, determining the second type of RO and / or Preamble in the second RACH resource associated with the SSB based on a first mapping criterion, determining the second type of RO and / or Preamble in the third RACH resource associated with the SSB based on a second mapping criterion, and determining the first type of RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion; Determine that the RO to be used is the first type RO in the third RACH resource, the second type RO in the third RACH resource, and the second type RO in the second RACH resource, determine the second type RO and / or Preamble in the second RACH resource associated with the SSB based on the first mapping criterion, and determine the first type RO, the second type RO and / or Preamble in the third RACH resource associated with the SSB based on the second mapping criterion.
64. The method according to claim 55 or claim 63, characterized in that The first mapping criterion is the same as or different from the second mapping criterion.
65. The method according to claim 55 or 63, characterized in that The first mapping criterion and / or the second mapping criterion include at least one of the following: N SSBs are mapped to one RO, where N is a number greater than 0; An SSB associated preamble.
66. The method according to claim 43, wherein The second RACH resource and the third RACH resource meet one of the following conditions: The first condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at the same time domain and / or frequency domain position, and the second type RO of the second RACH resource and the second type RO at the same time and frequency position of the third RACH resource contain the same preamble; The second condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located in The second type RO of the second RACH resource having the same time domain and / or frequency domain position and the same preamble as the second type RO of the third RACH resource having the same time and frequency position; The third condition includes: the second type RO of the second RACH resource and the second type RO of the third RACH resource are located at different time domain and / or frequency domain locations.
67. The method according to claim 66, characterized in that The first condition also includes at least one of the following: In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position; In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions; An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
68. The method according to claim 66, characterized in that The second condition also includes at least one of the following: In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position; In the third RACH resource, the first type RO and the second type RO are located in different frequency domain positions; An RO for the first type of terminal in the first type RO and / or the second type RO is configured.
69. The method according to claim 66, characterized in that The first condition also includes: The second type RO in the third RACH resource is the same as the second type RO in the second RACH resource.
70. The method of claim 66, wherein: The second condition also includes: For the first type of terminal, the starting Preamble, the number of Preambles associated with an SSB and / or the Preamble index associated with an SSB in the second type of RO are configured.
71. The method according to claim 66, wherein The third condition also includes one of the following: In the third RACH resource, the first type RO and the second type RO are located at the same frequency domain position; In the third RACH resource, the first type RO and the second type RO are located in different frequency domain locations.
72. The method according to claim 43, wherein The random access RA is contention-based random access CBRA or the RA is non-contention-based random access CFRA.
73. The method according to claim 72, characterized in that The CFRA is a CFRA triggered based on a higher layer or a CFRA triggered based on a physical downlink control channel PDCCH.
74. The method according to claim 43, wherein The RA is a 2-step random access or the RA is a 4-step random access.
75. A communication method, characterized in that: The method is performed by a communication system, and includes: The network device sends first information to the terminal; The first information is used to indicate one of the following: A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal; The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
76. A terminal, characterized in that The terminal includes: The transceiver module is configured as follows: receiving first information sent by a network device; The first information is used to indicate one of the following: A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal; The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
77. A network device, characterized in that The network equipment includes: The transceiver module is configured as follows: Sending first information to the terminal; The first information is used to indicate one of the following: A first random access channel (RACH) resource for RA of a first type of terminal and a second type of terminal; The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.
78. A communication system, characterized in that The communication system includes a terminal and a network device; the terminal is configured to implement the communication method according to any one of claims 1 to 42, and the network device is configured to implement the communication method according to any one of claims 43 to 74.
79. A terminal, characterized in that: The terminal includes: one or more processors; The terminal is configured to execute the communication method according to any one of claims 1 to 42.
80. A network device, wherein: The network equipment includes: one or more processors; Wherein, the network device is used to execute the communication method described in any one of claims 43 to 74.
81. A storage medium, wherein The storage medium stores instructions, and when the instructions are executed on the communication device, the communication device executes the communication method according to any one of claims 1 to 42 and / or claims 43 to 74.
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