Method for determining resource, device, and storage medium

Abstract

Embodiments of the present disclosure relate to a method for determining a resource, a device, and a storage medium. The method comprises: receiving first information, wherein the first information can be used for configuring a reference signal resource, and the reference signal resource can be used for determining a first quasi co-location (QCL) parameter; receiving second information, wherein the second information can be used for determining random access resource information corresponding to the reference signal resource. In this way, a terminal device can determine a random access resource corresponding to a reference signal resource on the basis of second information, thereby achieving flexible management of random access resources.

Description

Resource determination method, device and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a resource determination method, device, and storage medium. Background Art

[0002] To improve the performance of wireless communication systems, beam-based transmission and reception (also known as quasi-co-site type D parameters) can be used. Terminal devices can perform beam measurements based on reference signal resources and select the beam with the best measurement result to communicate with the base station, improving communication quality.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a resource determination method, device, and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a resource determination method is proposed, the method comprising:

[0006] receiving first information, where the first information is used to configure a reference signal resource, where the reference signal resource is used to determine a first quasi-co-site QCL parameter;

[0007] Second information is received, where the second information is used to determine random access resource information corresponding to the reference signal resource.

[0008] According to a second aspect of an embodiment of the present disclosure, a resource determination method is proposed, the method comprising:

[0009] Sending first information, where the first information is used to configure a reference signal resource, where the reference signal resource is used to determine a first quasi-co-site QCL parameter;

[0010] Second information is sent, where the second information is used to determine random access resource information corresponding to the reference signal resource.

[0011] According to a third aspect of an embodiment of the present disclosure, a terminal device is provided, including:

[0012] The transceiver module is configured to receive first information, where the first information is used to configure reference signal resources, and the reference signal resources are used to determine first quasi-co-site QCL parameters; and receive second information, where the second information is used to determine random access resource information corresponding to the reference signal resources.

[0013] According to a fourth aspect of an embodiment of the present disclosure, a network device is provided, including:

[0014] The transceiver module is configured to send first information, where the first information is used to configure reference signal resources, and the reference signal resources are used to determine the first quasi-co-site QCL parameters; and send second information, where the second information is used to determine the random access resource information corresponding to the reference signal resources.

[0015] According to a fifth aspect of an embodiment of the present disclosure, a communication device is proposed, comprising: one or more processors; wherein the communication device can be used to execute an optional implementation of the first aspect or the second aspect.

[0016] According to a sixth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the optional implementation of the first aspect or the second aspect.

[0017] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, which may include: a terminal device and a network device; wherein the terminal device is configured to execute the method described in the optional implementation manner of the first aspect, and the network device is configured to execute the method described in the optional implementation manner of the second aspect.

[0018] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects: receiving first information, where the first information can be used to configure a reference signal resource, where the reference signal resource is used to determine a first quasi-co-site QCL parameter; and receiving second information, where the second information can be used to determine random access resource information corresponding to the reference signal resource. Thus, a terminal device can determine the random access resource corresponding to the reference signal resource based on the second information, thereby achieving flexible management of the random access resource.

[0019] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0021] FIG1A is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0022] Figure 1B is a schematic diagram showing a mapping relationship between synchronization signal blocks and random access opportunities according to an embodiment of the present disclosure.

[0023] FIG2A is an interactive schematic diagram illustrating a resource determination method according to an embodiment of the present disclosure.

[0024] FIG2B is an interactive schematic diagram illustrating a resource determination method according to an embodiment of the present disclosure.

[0025] FIG2C is an interactive schematic diagram illustrating a resource determination method according to an embodiment of the present disclosure.

[0026] FIG3A is a flow chart showing a resource determination method according to an embodiment of the present disclosure.

[0027] FIG3B is a flow chart illustrating a method for determining resources according to an embodiment of the present disclosure.

[0028] FIG3C is a flow chart illustrating a method for determining resources according to an embodiment of the present disclosure.

[0029] FIG4A is a flow chart showing a resource determination method according to an embodiment of the present disclosure.

[0030] FIG4B is a flow chart illustrating a resource determination method according to an embodiment of the present disclosure.

[0031] FIG4C is a flow chart illustrating a method for determining resources according to an embodiment of the present disclosure.

[0032] FIG5A is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.

[0033] FIG5B is a schematic structural diagram of a network device according to an embodiment of the present disclosure.

[0034] FIG6A is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.

[0035] FIG6B is a schematic structural diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] The embodiments of the present disclosure provide a resource determination method, device, and storage medium.

[0037] In a first aspect, an embodiment of the present disclosure provides a resource determination method, the method comprising:

[0038] receiving first information, where the first information is used to configure a reference signal resource, where the reference signal resource is used to determine a first quasi-co-site QCL parameter;

[0039] Second information is received, where the second information is used to determine random access resource information corresponding to the reference signal resource.

[0040] In the above embodiment, the terminal device can determine the random access resource corresponding to the reference signal resource based on the second information, thereby realizing flexible management of the random access resource, so that the terminal device initiates random access through the random access resource, and thus can notify the network device of the reference signal resource and the QCL parameters corresponding to the reference signal resource through random access, thereby realizing rapid notification of the QCL parameters and reducing notification delay and signaling overhead.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the random access resource information includes at least one of the following:

[0042] Synchronization signal block SSB index;

[0043] Channel state information reference signal CSI-RS resource index;

[0044] Random access opportunity RO;

[0045] Preamble index;

[0046] A first cell index, where the first cell index is used to determine a first cell corresponding to the random access resource.

[0047] In the above embodiment, the random access resource may be determined by using the above at least one piece of information, so that the terminal device may initiate random access using the random access resource.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, the configuration information of the reference signal resource includes at least one of the following:

[0049] Reference signal resource identifier;

[0050] The second cell index is used to determine the second cell corresponding to the reference signal resource identifier, and the second cell is a serving cell or a non-serving cell of the terminal device.

[0051] In the above embodiment, the reference signal resource can be determined by using the above at least one piece of information, so that the terminal device can perform beam measurement based on the reference signal resource.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the reference signal resource is a reference signal resource corresponding to a QCL parameter, the QCL parameter corresponds to a transmission configuration indication TCI state, and different TCI states correspond to different random access resource information, wherein:

[0053] The TCI state includes at least one of a joint TCI state, a downlink TCI state, and an uplink TCI state;

[0054] The random access resource information includes at least one of a random access opportunity RO and a preamble index.

[0055] In the above embodiment, the terminal device can distinguish different TCI states through different random access resources.

[0056] In conjunction with some embodiments of the first aspect, in some embodiments, the second cell is a non-serving cell of the terminal device, wherein:

[0057] The reference signal resource is the SSB of the second cell; or,

[0058] The reference signal resource is a CSI-RS resource, and the source reference signal corresponding to the CSI-RS resource is the SSB of the second cell.

[0059] In the above embodiment, beam measurement can be performed through any one of SSB or CSI-RS resources.

[0060] In conjunction with some embodiments of the first aspect, in some embodiments,

[0061] The random access resource information includes an SSB index, where the SSB index in the random access resource information is an SSB index of a first cell, where the first cell is a serving cell or a non-serving cell of the terminal device; or

[0062] The random access resource information includes a CSI-RS resource index, and the source reference signal corresponding to the CSI-RS resource index in the random access resource information is the SSB index of the first cell.

[0063] In the above embodiment, the random access resource may be determined by any one of the SSB or CSI-RS resources.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments,

[0065] The random access resource information does not include an RO, and the RO corresponding to the random access resource is determined according to a first mapping relationship, where the first mapping relationship is a mapping relationship between an SSB index of the first cell and an RO; and / or,

[0066] The random access resource information does not include a preamble code index, and the preamble code index corresponding to the random access resource is determined according to a second mapping relationship, where the second mapping relationship is a mapping relationship between the SSB index of the first cell and the preamble code index.

[0067] In the above embodiment, the terminal device can determine the RO and / or preamble code index through any one of the SSB or CSI-RS resources.

[0068] In conjunction with some embodiments of the first aspect, in some embodiments, the first cell is a non-serving cell, and the method further includes:

[0069] Third information is received, where the third information is used to determine the first mapping relationship and / or the second mapping relationship corresponding to the non-serving cell.

[0070] In the above embodiment, the terminal device can determine the first mapping relationship and / or the second mapping relationship corresponding to the non-service cell, so as to determine the RO and / or preamble code index according to the SSB of the non-service cell.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments,

[0072] The random access resource information includes an SSB index, the first cell is a non-serving cell, and the first cell index in the random access resource information is an index of the first cell in the additional cell list; or

[0073] The random access resource information includes an SSB index, the first cell is a serving cell, and the first cell index in the random access resource information is used to indicate that the first cell is a serving cell, or the random access resource information does not include the first cell index;

[0074] The random access resource information includes a CSI-RS index, and the first cell index in the random access resource information is used to indicate that the first cell is a serving cell, or the random access resource information does not include the first cell index.

[0075] In the above embodiment, the first cell index can be flexibly configured.

[0076] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0077] Determining a first reference signal resource corresponding to a first QCL parameter;

[0078] Determining first random access resource information corresponding to the first reference signal resource;

[0079] A random access preamble is sent according to the first random access resource information.

[0080] In the above embodiment, the terminal device can implicitly notify the network device of the selected first QCL parameter (such as a new QCL parameter or a switched target QCL parameter) based on the random access process, so that the network device and the terminal device maintain consistent understanding of the first QCL parameter.

[0081] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0082] A physical downlink control channel (PDCCH) is received based on the first QCL parameter.

[0083] In the above embodiment, the indication may be made through the PDCCH.

[0084] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0085] Downlink transmission and / or uplink transmission is performed based on the first QCL parameter.

[0086] In the above embodiment, the terminal device can implicitly notify the network device of the selected first QCL parameter (for example, a new QCL parameter or a switched target QCL parameter) based on the random access process, so that the network device can determine the first reference signal resource and the first QCL parameter corresponding to the first reference signal resource through the random access resource. The network device and the terminal device maintain consistency in their understanding of the first QCL parameter, so that the QCL parameter can be quickly updated, and uplink and / or downlink transmission can be performed based on the new QCL parameter, thereby improving the beam-based transmission performance, reducing the delay and signaling overhead of the beam (QCL parameter) update, and improving the transmission quality.

[0087] In a second aspect, an embodiment of the present disclosure provides a resource determination method, the method comprising:

[0088] Sending first information, where the first information is used to configure a reference signal resource, where the reference signal resource is used to determine a first quasi-co-site QCL parameter;

[0089] Second information is sent, where the second information is used to determine random access resource information corresponding to the reference signal resource.

[0090] In the above embodiment, the network device can indicate the random access resource corresponding to the reference signal resource through the second information, thereby realizing flexible management of the random access resource, so that the terminal device can initiate random access through the random access resource, and thus the reference signal resource and the QCL parameter corresponding to the reference signal resource can be notified to the network device through random access, thereby realizing rapid notification of the QCL parameter and reducing the notification delay and signaling overhead.

[0091] In conjunction with some embodiments of the second aspect, in some embodiments, the random access resource information includes at least one of the following:

[0092] Synchronization signal block SSB index;

[0093] Channel state information reference signal CSI-RS resource index;

[0094] Random access opportunity RO;

[0095] Preamble index;

[0096] A first cell index, where the first cell index is used to determine a first cell corresponding to the random access resource.

[0097] In conjunction with some embodiments of the second aspect, in some embodiments, the configuration information of the reference signal resource includes at least one of the following:

[0098] Reference signal resource identifier;

[0099] The second cell index is used to determine the second cell corresponding to the reference signal resource identifier, and the second cell is a serving cell or a non-serving cell of the terminal device.

[0100] In conjunction with some embodiments of the second aspect, in some embodiments, the reference signal resource is a reference signal resource corresponding to a QCL parameter, the co-site type D corresponds to a transmission configuration indication TCI state, and different TCI states correspond to different random access resource information, wherein:

[0101] The TCI state includes at least one of a joint TCI state, a downlink TCI state, and an uplink TCI state;

[0102] The random access resource information includes at least one of a random access opportunity RO and a preamble index.

[0103] In conjunction with some embodiments of the second aspect, in some embodiments, the second cell is a non-serving cell of the terminal device, wherein:

[0104] The reference signal resource is the SSB of the second cell; or,

[0105] The reference signal resource is a CSI-RS resource, and the source reference signal corresponding to the CSI-RS resource is the SSB of the second cell.

[0106] In conjunction with some embodiments of the second aspect, in some embodiments,

[0107] The random access resource information includes an SSB index, where the SSB index in the random access resource information is an SSB index of a first cell, where the first cell is a serving cell or a non-serving cell of the terminal device; or

[0108] The random access resource information includes a CSI-RS resource index, and the source reference signal corresponding to the CSI-RS resource index in the random access resource information is the SSB index of the first cell.

[0109] In conjunction with some embodiments of the second aspect, in some embodiments,

[0110] The random access resource information does not include an RO, and the RO corresponding to the random access resource is determined according to a first mapping relationship, where the first mapping relationship is a mapping relationship between an SSB index of the first cell and an RO; and / or,

[0111] The random access resource information does not include a preamble code index, and the preamble code index corresponding to the random access resource is determined according to a second mapping relationship, where the second mapping relationship is a mapping relationship between the SSB index of the first cell and the preamble code index.

[0112] In conjunction with some embodiments of the second aspect, in some embodiments, the first cell is a non-serving cell, and the method further includes:

[0113] Third information is received, where the third information is used to determine the first mapping relationship and / or the second mapping relationship corresponding to the non-serving cell.

[0114] In conjunction with some embodiments of the second aspect, in some embodiments,

[0115] The random access resource information includes an SSB index, the first cell is a non-serving cell, and the first cell index in the random access resource information is an index of the first cell in the additional cell list; or

[0116] The random access resource information includes an SSB index, the first cell is a serving cell, and the first cell index in the random access resource information is used to indicate that the first cell is a serving cell, or the random access resource information does not include the first cell index;

[0117] The random access resource information includes a CSI-RS index, and the first cell index in the random access resource information is used to indicate that the first cell is a serving cell, or the random access resource information does not include the first cell index.

[0118] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0119] Receive a random access preamble code, where the random access preamble code is a random access preamble code sent by a terminal device according to first random access resource information, where the first random access resource information is random access resource information corresponding to a first reference signal resource, and where the first reference signal resource is a reference signal resource corresponding to a first QCL parameter determined by the terminal device.

[0120] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0121] A physical downlink control channel PDCCH is sent to the terminal device based on the first QCL parameter.

[0122] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0123] Perform downlink transmission and / or uplink transmission with the terminal device based on the first QCL parameter.

[0124] In a third aspect, an embodiment of the present disclosure proposes a terminal device, which may include at least one of a transceiver module and a processing module; wherein the terminal device can be used to execute the optional implementation method of the first aspect.

[0125] In a fourth aspect, an embodiment of the present disclosure proposes a network device, which may include at least one of a transceiver module and a processing module; wherein the network device can be used to execute the optional implementation method of the second aspect.

[0126] In a fifth aspect, an embodiment of the present disclosure proposes a communication device, which may include: one or more processors; wherein the communication device can be used to execute an optional implementation of the first aspect or the second aspect.

[0127] In a sixth aspect, an embodiment of the present disclosure proposes a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute the method described in the optional implementation manner of the first aspect or the second aspect.

[0128] In a seventh aspect, an embodiment of the present disclosure proposes a program product, which, when executed by a communication device, enables the communication device to execute the method described in the optional implementation manner of the first aspect or the second aspect.

[0129] In an eighth 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 or second aspect.

[0130] In a ninth 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 aspect or the second aspect.

[0131] In the tenth aspect, an embodiment of the present disclosure proposes a communication system, which may include: a terminal device and a network device; wherein, the terminal device is configured to execute the method described in the optional implementation manner of the first aspect, and the network device is configured to execute the method described in the optional implementation manner of the second aspect.

[0132] It is understandable that the above-mentioned terminal devices, network devices, communication devices, communication systems, storage media, program products, computer programs, chips, or chip systems can all be used to perform 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.

[0133] The present disclosure provides a resource determination method, device, and storage medium. In some embodiments, the terms resource determination method, information processing method, and communication method are interchangeable; resource determination device, information processing device, communication device, and communication equipment are interchangeable; and information processing system, communication system, and other terms are interchangeable.

[0134] 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.

[0135] 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.

[0136] 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.

[0137] 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.

[0138] In some embodiments, "plurality" may refer to two or more.

[0139] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0140] 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.

[0141] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0142] 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.

[0143] 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.

[0144] 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.

[0145] 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.

[0146] In some embodiments, devices and the like may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as "device," "equipment," "device," "circuit," "network element," "node," "function," "unit," "section," "system," "network," "chip," "chip system," "entity," and "subject" may be used interchangeably.

[0147] In some embodiments, "network" can be interpreted as devices included in the network (eg, network equipment, access network equipment, core network equipment, etc.).

[0148] In some embodiments, the network device may include at least one of an access network device and a core network device.

[0149] In some embodiments, the terms "Access Network Device (AN Device)", "Radio Access Network Device (RAN Device)", "Base Station (BS)", "Radio Base Station (Radio Base Station)", "Fixed Station (Fixed Station)", "Node (Node)", "Access Point (Access Point)", "Transmission Point (TP)", "Reception Point (RP)", "Transmission and / or Reception Point (TRP))", "Panel (Panel)", "Antenna Panel (Antenna Panel)", "Antenna Array (Antenna Array)" "Cell (Cell)", "Macro Cell (Macro Cell)", "Small Cell (Small Cell)", "Femto Cell (Femto Cell)", "Pico Cell (Pico Cell)" "Sector (Sector)", "Cell Group (Cell Group)", "Serving Cell (Cell)", "Carrier (Carrier)", "Component Carrier (Component Carrier)", "Bandwidth Part (BWP)" and the like may be used interchangeably.

[0150] In some embodiments, the terms "terminal", "terminal device", "terminal-side device", "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station (Subscriber Station), mobile unit (Mobile Unit), subscriber unit (Subscriber Unit), wireless unit (Wireless Unit), remote unit (Remote Unit), mobile device (Mobile Device), wireless device (Wireless Device), wireless communication device (Wireless Communication Device), remote device (Remote Device), mobile subscriber station (Mobile Subscriber Station), access terminal (Access Terminal), mobile terminal (Mobile Terminal), wireless terminal (Wireless Terminal), remote terminal (Remote Terminal), handset (Handset), user agent (User Agent), mobile client (Mobile Client), client (Client) and the like can be used interchangeably.

[0151] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal device. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal device is replaced by the communication between multiple terminal devices (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal device has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminal devices (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels or direct channels, and uplinks, downlinks, etc. can be replaced by side links or direct links.

[0152] In some embodiments, the terminal device may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal device.

[0153] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0154] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0155] 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.

[0156] FIG1A is a schematic diagram illustrating an architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1A , the communication system 100 may include a terminal device 101 and a network device 102 .

[0157] In some embodiments, the terminal device 101 may include at least one of a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a vehicle-mounted terminal, a tablet computer, a computer with wireless transceiver function, a road side unit (RSU), 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 smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, and a wireless terminal device in smart home, but is not limited thereto.

[0158] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0159] In some embodiments, the access network device may be a node or device that accesses the terminal device to the wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0160] 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.

[0161] 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 (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.

[0162] In some embodiments, the core network device may be a single device, or may be multiple devices or a group of devices. The core network may include at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0163] It can be understood that the communication system described in the embodiment of the present disclosure is to more clearly illustrate the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0164] 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 examples. The communication system may include all or part of the entities shown in FIG1A , or may include other entities outside of FIG1A . The number and form of the entities are arbitrary. The entities may be physical or virtual. The connection relationship between the entities is an example. The entities may be connected or disconnected. The connection may be in any manner, whether direct or indirect, and may be wired or wireless.

[0165] The embodiments of the present disclosure may 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 802.17 (WiMAX (registered trademark)), IEEE 802.18 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (WiMAX (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (WiMAX (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark)), 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).

[0166] In some embodiments of the present disclosure, the above-mentioned terminal device can determine the random access resource based on the synchronization signal block (Synchronization Signal Block, SSB).

[0167] Taking 5G networks as an example, in NR licensed spectrum, a time slot can include 14 symbols, and the number of slots in a subframe (e.g., 1ms) is determined by the subcarrier spacing. For example, when the subcarrier spacing is 15kHz, there is one slot in 1ms; when the subcarrier spacing is 30kHz, there are two slots in 1ms; when the subcarrier spacing is 60kHz, there are four slots in 1ms, and so on.

[0168] In 5G networks, in order to reduce the number of always-on reference signals and thus reduce air interface overhead, a synchronization signal block (SSB) is proposed. The SSB may include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH). Optionally, the SSB may occupy four consecutive symbols, which may be, in order, the PSS, PBCH, SSS+PBCH (the middle 12 RBs are SSS, and the four RBs on each side are PBCH, which may be referred to as SSS symbols), and PBCH. Some subcarriers in the PBCH are demodulation reference signals (DMRS).

[0169] The above symbols may also be called Orthogonal Frequency Division Multiplexing (OFDM) symbols.

[0170] In some embodiments, the subcarrier spacing of the synchronization signal block can be 15KHz, 30KHz, 120KHz or 240KHz. All synchronization signal blocks can be sent within 5ms.

[0171] To support beam transmission, each beam needs to send SSB when there is a beam. The maximum number of synchronization signal blocks that can be sent within 5ms can be 4 (when the carrier frequency is below 3GHz) or 8 (when the carrier frequency is 3GHz to 6GHz) or 64 (when the carrier frequency is above 6GHz).

[0172] In some embodiments, “beam,” “beam pair,” “beam width,” “beam angular degree,” “antenna,” “antenna element,” “antenna port,” “antenna port group,” “panel,” “layer,” “the number of layers,” “rank,” “resource,” “resource set,” “resource group,” “Quasi-Colocation (QCL) Type D,” “spatial setting,” “spatial filter,” “spatial domain filter,” “spatial reception filter,” “spatial transmission filter,” “spatial relation info,” “spatial RX parameters,” “spatial Tx parameter,” “Transmission Configuration Indication (TCI) state,” “Transmission Configuration Indication (TCI) state” or “Transmission Configuration Indication (TCI) state” may be used to represent a portion of the spatial relationship information of the spatial receive parameter and the spatial transmit parameter. The terms "transmission configuration indication (TCI) state", "transmission configuration indication state (TCI)", "joint transmission configuration indication state (joint TCI state)", "downlink transmission configuration indication state (DL TCI state)", "uplink transmission configuration indication state (UL TCI state)", "unified transmission configuration indication state (unified TCI state)", and "common transmission configuration indication state (common TCI state)" are interchangeable.

[0173] In some embodiments, when the terminal device and the network device perform initial synchronization, the terminal device detects one of the synchronization signal blocks sent by the network device, obtains the synchronization signal block index (SSB index) corresponding to the synchronization signal block, and thus obtains the symbol position of the synchronization signal block. In this way, the terminal device and the network device achieve downlink symbol synchronization.

[0174] In some embodiments, in order to achieve uplink synchronization, the terminal device needs to send a random access preamble (RA Preamble). How to select this random access preamble and on which random access opportunity (Random access channel Occasion, RO) this random access preamble is sent are determined by the synchronization signal block received by the terminal device, which synchronization signal blocks are actually sent by the network device, and the location set of the RO. For example, the specific process is as follows:

[0175] Step 1: The terminal device detects that the SSB index of the synchronization signal block it receives is SSB#1.

[0176] Step 2: The terminal device receives a system information block 1 (SIB1) message sent by the network device. The SIB1 can indicate which synchronization signal blocks are actually sent by the network device.

[0177] Optionally, network devices can use two 8-bit bits to indicate which synchronization signal blocks were actually sent. Because the maximum number of positions where a synchronization signal block can be sent is 64, the 64 synchronization signal blocks can be divided into 8 groups, with the 8 synchronization signal blocks in each group being consecutive. That is, SSB#0 to #7 are the first group, SSB#8 to #15 are the second group, and SSB#56 to #63 are the eighth group. Of the two 8-bit bits, the first 8-bit indicates which groups have synchronization signal blocks sent. For example, if the first 8-bit is 00000001 (the left side is the high bit, the right side is the low bit), it means that only the first group has SSBs sent. The second 8-bit indicates the positions of the SSBs within the groups where SSBs are sent. For example, if the second 8-bit is 10011011, it means that SSB#0, #1, #3, #4, and #7 were sent within the first group.

[0178] Step 3: Through steps 1 and 2, the terminal device knows that the SSB#1 it received is the second of the five synchronization signal blocks sent by the network device.

[0179] Step 4: The terminal device receives the SIB1 sent by the network device and obtains the SSB-perRACH-Occasion information, which identifies how many synchronization signal blocks are actually sent to which the preamble code in an RO needs to be allocated.

[0180] The value of SSB-perRACH-Occasion can be any of the following: {1 / 8, 1 / 4, 1 / 2, 1, 2, 4, 8, 16}. When the parameter is 1 / 8, it means that the SSB occupies 8 consecutive ROs. When the parameter is 8, it means that 8 consecutive SSBs actually sent share the RO but use different preambles. For example, 64 preambles are divided into 8 consecutive groups, and each SSB corresponds to one of the preamble groups.

[0181] Optionally, the terminal device can receive the SIB1 sent by the network device and obtain the number of ROs for frequency-division multiplexing (FDM). This number can be one of {1, 2, 4, 8}. If the number is 2, it means that there are two ROs in different frequency domains at the same time. The ROs are numbered in the frequency domain first and then in the time domain.

[0182] Figure 1B is a schematic diagram of a mapping relationship between a synchronization signal block and a random access opportunity according to an embodiment of the present disclosure. As shown in Figure 1B, f is a frequency domain coordinate, the unit of f can be kHZ or subcarrier, t is a time domain coordinate, and the unit of t can be a symbol. Optionally, if SSB-perRACH-Occasion is 2, the number of ROs of FDM is 2, and the network device sends SSB#0, #1, #3, #4, and #7 in the first group of SSBs, then the correspondence between SSBs and ROs can be as shown in Figure 1B, where different SSBs correspond to different ROs at different time-frequency positions, for example, RO#0 corresponds to SSB#0 and SSB#1, RO#1 corresponds to SSB#3 and SSB#4, RO#2 corresponds to SSB#7 and SSB#0, RO#3 corresponds to SSB#1 and SSB#3, and so on.

[0183] Optionally, the mapping relationship between the synchronization signal block SSB and the random access opportunity RO can be called a first mapping relationship (or a first corresponding relationship, a first relationship). The mapping relationship between the synchronization signal block SSB and the preamble code Preamble can be called a second mapping relationship (or a second corresponding relationship, a second relationship). The terminal device can determine the RO corresponding to the SSB based on the first mapping relationship, and determine the Preamble corresponding to the SSB based on the second mapping relationship. Optionally, the terminal device can determine the above-mentioned first mapping relationship and / or second mapping relationship based on relevant information in the SIB1 received from the serving cell (for example, which synchronization signal blocks are actually sent by the network device, SSB-perRACH-Occasion information), etc.

[0184] Through the above information, the terminal device can know the RO and preamble corresponding to the SSB it detects. In this way, the terminal device can use the RO and preamble corresponding to the SSB to initiate random access to the network device.

[0185] In some embodiments, the terms "random access preamble (RA Preamble)", "preamble", "preamble", "random access preamble" and the like may be used interchangeably.

[0186] In some embodiments, the terminal device may send a beam measurement report to the network device. Optionally, the network device may configure the reporting of the beam measurement report. For example, the network device may configure the terminal device to perform at least one of periodic reporting, semi-persistent reporting, and aperiodic reporting. In other words, the terminal device may send the beam measurement report at a time configured by the network device.

[0187] Optionally, the terminal device may perform beam measurement to obtain a beam measurement result, which may be a physical layer reference signal receiving power (Layer 1-Reference Signal Receiving Power, L1-RSRP) and / or a physical layer signal to interference plus noise ratio (Layer 1-Signal to Interference plus Noise Ratio, L1-SINR).

[0188] Optionally, the beam measurement report may include beam measurement results.

[0189] The terminal device is the first to know whether the beam quality (such as L1-RSRP, L1-SINR) has changed after measurement. If the beam report sending time is determined by the network, it is possible that the time determined by the network device is inappropriate: for example, the time interval between two transmissions is too short, and the beam quality has not changed, resulting in a waste of resources; for example, the time interval between two transmissions is too long, so that there are no resources to report even if the beam has changed, resulting in a beam update delay or even beam failure. Therefore, in some embodiments, the terminal device can actively trigger a beam measurement report based on an event, and the terminal device can send a beam measurement report when the conditions corresponding to the event are met. The event can be at least one of a trigger event configured by the network device, a trigger event specified by the protocol, and a trigger event configured by the terminal device itself.

[0190] In some embodiments, the terminal device may initiate random access when actively sending a beam measurement report. For example, the beam measurement report initiated by the terminal device may be performed through contention free or contention based random access (RA).

[0191] In related technologies, how a terminal device determines random access resources is a problem that needs to be solved.

[0192] FIG2A is an interactive diagram illustrating a resource determination method according to an embodiment of the present disclosure. The method may be executed by the above-mentioned communication system. As shown in FIG2A , the method may include:

[0193] Step S2101: The network device sends first information to the terminal device.

[0194] In some embodiments, the terminal device may receive the first information. For example, the terminal device may receive the first information sent by the network device.

[0195] In some embodiments, the first information may be used to configure reference signal resources, and the reference signal resources may be used to determine the first quasi-co-sited QCL parameter. For example, the first information may include configuration information of the reference signal resources.

[0196] In some embodiments, the first QCL parameter may be a new QCL parameter. For example, if the terminal device currently performs downlink transmission and / or uplink transmission with the network device based on the second QCL parameter, a new QCL parameter may be determined as the first QCL parameter based on the reference signal resource in the first information, and the first QCL parameter may be switched to for downlink transmission and / or uplink transmission. Optionally, the first QCL parameter and the second QCL parameter may be different or the same.

[0197] In some embodiments, the name of the first information is not limited, and may be, for example, "configuration information", "reference signal resource configuration information", "reference signal resource information", etc.

[0198] In some embodiments, the first information may be carried in at least one of system information, radio resource control RRC (Radio Resource Control) message, medium access control control element MAC CE (Medium Access Control Control Element), downlink control information DCI (Downlink Control Information), or other messages sent by the network device to the terminal device. Optionally, the above-mentioned system information may include a master information block (Master Information Block, MIB) and / or a system information block (System Information Block, SIB), and optionally, the SIB may be SIB1, SIB2 or other SIBs.

[0199] In some embodiments, the configuration information of the reference signal resource includes at least one of the following:

[0200] Reference signal resource identifier: the reference signal resource identifier may be used to indicate at least one reference signal resource;

[0201] The second cell index is used to determine the second cell corresponding to the reference signal resource identifier. The second cell may be a serving cell or a non-serving cell of the terminal device.

[0202] In some embodiments, the second cell is a non-server cell, and the second cell index is a cell index of the second cell in an additional cell list. The additional cell list can configure multiple additional cells on a component carrier (CC). The additional cell list can include at least one of the following information for each additional cell: a physical cell identifier (PCI) of the additional cell, a cell index of the additional cell in the list, SSB transmission power, SSB measurement time, SSB period, SSB position (ssb-PositionsInBurst), and other information. Among them, the SSB position can be used to indicate which SSBs are actually transmitted among a maximum of N SSBs in a burst, corresponding to N bits of indication information, each bit corresponding to one SSB, and a bit value of 1 indicates that the SSB at the corresponding position will be transmitted. Only the SSBs that will be transmitted need to be monitored, and only corresponding RO and preamble resources will be available.

[0203] Optionally, the additional cell list may also be referred to as an additional PCI list.

[0204] In some embodiments, the name of the non-serving cell is not limited, and may be, for example, an "additional cell", a "neighboring cell", etc.

[0205] In some embodiments, the name of the cell index is not limited, and may be, for example, "cell ID," "additional cell index," "non-serving cell index," "serving cell index," "additional cell ID," "non-serving cell ID," "serving cell ID," etc. For example, the second cell index may also be referred to as the second cell ID.

[0206] In some embodiments, the reference signal resource is the SSB of the second cell.

[0207] In some other embodiments, the reference signal resource is a CSI-RS resource, and the source reference signal corresponding to the CSI-RS resource is the SSB of the second cell. The source reference signal may be a source reference signal corresponding to a quasi-co-site type D (QCL Type D) parameter.

[0208] In this way, the terminal device can perform beam measurement based on different types of reference signal resources.

[0209] In some embodiments, the terminal performs beam measurement based on the reference signal resource, obtains the L1-RSRP or L1-SINR corresponding to each reference signal resource through beam measurement, and then informs the network device of the beam measurement result, wherein the beam measurement result includes the reference signal resource identifier, or includes the reference signal resource identifier and the corresponding L1-RSRP or L1-SINR. Based on the reference signal resource identifier informed by the terminal, the network device determines the quasi-co-site parameter corresponding to the reference signal resource corresponding to the reference signal resource identifier as the new quasi-co-site parameter. The quasi-co-site parameter includes Type A, Type B, Type C, and Type D. Type D can be interchangeable with beam. Type A, Type B, and Type C can correspond to at least one of average delay, delay spread, Doppler shift, and Doppler spread.

[0210] Step S2102: The network device sends second information to the terminal device.

[0211] In some embodiments, the terminal device may receive the second information. For example, the terminal device may receive the second information sent by the network device.

[0212] In some embodiments, the second information may be used to determine random access resource information corresponding to the reference signal resource.

[0213] In some embodiments, the name of the second information is not limited, for example, it can be "random access resource configuration information", "random access resource indication information", "resource corresponding information", "resource mapping relationship information", "reference signal resource and random access resource mapping relationship information", etc.

[0214] In some embodiments, the second information may be carried in at least one of system information, RRC message, MAC CE, DCI, or other messages sent by the network device to the terminal device. Optionally, the second information may be carried by an RRC message.

[0215] In some embodiments, the first information and the second information may be carried in two separate messages. For example, the network device may send an RRC message carrying the first information and an RRC message carrying the second information to the terminal device. For another example, the network device may send the first information to the terminal device via an RRC message and send the second information to the terminal device via system information (e.g., SIB).

[0216] In some embodiments, the first information and the second information may be carried in the same message. For example, the network device may send an RRC message to the terminal device, and the RRC message carries the first information and the second information.

[0217] In some embodiments, the terminal device can determine the random access resource corresponding to the reference signal resource based on the second information, and initiate random access based on the random access resource. The network device can determine the reference signal resource corresponding to the random access resource (such as RO and preamble) for which the terminal device initiates random access, and determine the first QCL parameter corresponding to the reference signal resource. The first QCL parameter can be a new QCL parameter determined by the terminal device based on the beam measurement result.

[0218] In this way, the terminal device can implicitly notify the network device of the reference signal resources corresponding to the first QCL parameter (that is, the new QCL parameter), so that the network device and the terminal device are consistent in their understanding of the new QCL parameter, and thus can perform uplink and / or downlink transmission based on the new QCL parameter.

[0219] In some embodiments, the random access resource information may include at least one of the following:

[0220] Synchronization signal block SSB index, where the SSB index can be used to indicate at least one SSB;

[0221] A channel state information reference signal CSI-RS resource index, where the CSI-RS resource index may be used to indicate at least one CSI-RS resource;

[0222] Random access opportunity RO, which can be used to indicate the RO that the terminal device can use;

[0223] Preamble index, which can be used to indicate the preamble index that the terminal device can use;

[0224] The first cell index is used to determine the first cell corresponding to the random access resource. The first cell may be a serving cell or a non-serving cell.

[0225] Optionally, the first cell index may only exist when the random access resource information includes an SSB index, and may not exist when the random access resource includes a CSI-RS resource index.

[0226] In some embodiments, the random access resource information may include an SSB index, where the SSB index in the random access resource information is the SSB index of the first cell, and the first cell is a serving cell or a non-serving cell of the terminal device.

[0227] In other embodiments, the random access resource information may include a CSI-RS resource index, and the source reference signal corresponding to the CSI-RS resource index in the random access resource information is an SSB index of the first cell. The source reference signal may be a source reference signal (source RS) corresponding to quasi-co-site type D (QCL Type D). That is, the terminal may receive the CSI-RS on the CSI-RS resource based on the same QCL type D parameters as the source reference signal SSB.

[0228] In this way, the terminal device can determine the SSB of the first cell according to the SSB index or CSI-RS resource index of the random access resource information, determine the RO and Preamble corresponding to the SSB, and initiate random access according to the RO and Preamble.

[0229] In some embodiments, the random access resource information may include at least one of an RO and a preamble index, or may not include an RO and a preamble index. For example:

[0230] In one implementation, if the random access resource information includes an RO, the terminal device may determine the RO of the random access resource according to the RO.

[0231] In another implementation, if the random access resource information does not include the RO, the RO can be determined based on a first mapping relationship, where the first mapping relationship is a mapping relationship between the SSB index of the first cell and the RO. For example, the terminal device can determine the RO corresponding to the SSB as the RO of the random access resource based on the first mapping relationship and the SSB index. The SSB index can be the SSB index in the random access resource information, or it can be the source reference signal SSB index corresponding to the QCL type D corresponding to the CSI-RS resource index in the random access resource information.

[0232] In one implementation, if the random access resource information includes a preamble index, the terminal device may determine the preamble index of the random access resource based on the preamble index.

[0233] In another implementation, if the random access resource information does not include a preamble index, the preamble index can be determined based on a second mapping relationship, where the second mapping relationship is a mapping relationship between the SSB index of the first cell and the preamble index. For example, the terminal device can determine the preamble index corresponding to the SSB as the preamble index of the random access resource based on the second mapping relationship and the SSB index. The SSB index can be the SSB index in the random access resource information, or it can be the source reference signal SSB index corresponding to the QCL type D corresponding to the CSI-RS resource index in the random access resource information.

[0234] In this way, under any combination of the above random access resource information, the terminal device can determine the RO and Preamble of random access, and initiate random access according to the RO and Preamble.

[0235] In some embodiments, the above-mentioned first cell is a service cell of the terminal device. The terminal device can determine the above-mentioned first mapping relationship and / or second mapping relationship based on the relevant information in the SIB1 received from the service cell (for example, which synchronization signal blocks are actually sent by the network device, SSB-perRACH-Occasion information), etc., and determine the RO corresponding to the SSB according to the first mapping relationship, and determine the Preamble corresponding to the SSB according to the second mapping relationship. The specific implementation method can refer to the description in the previous embodiments of the present disclosure, and will not be repeated here.

[0236] In other embodiments, the above-mentioned first cell is a non-service cell of the terminal device, and the terminal device can receive third information and determine the first mapping relationship and / or second mapping relationship corresponding to the first cell based on the third information.

[0237] Among them, the third information can be used to determine the first mapping relationship and / or the second mapping relationship corresponding to the non-service cell. For example, the third information may include the cell index (or PCI) of the non-service cell, and the parameters in the SIB1 of the non-service cell for determining the first mapping relationship and / or the second mapping relationship, for example, which synchronization signal blocks, SSB-perRACH-Occasion information, etc. are actually sent by the neighboring cell. The specific implementation method can refer to the parameter description of the first mapping relationship and / or the second mapping relationship in the service cell in the aforementioned embodiment of the present disclosure, which will not be repeated here.

[0238] In this way, when the first cell corresponding to the random access resource is a non-service cell of the terminal device, the first mapping relationship and / or the second mapping relationship of the non-service cell can be obtained through the third information.

[0239] Optionally, the third information may be information sent by the network device to the terminal device alone, or may be information sent to the terminal device together with the second information.

[0240] In some embodiments, the third information may be carried in at least one of system information, RRC message, MAC CE, DCI, or other messages sent by the network device to the terminal device.

[0241] In some embodiments, the third information and the second information may be carried in two independent messages respectively, or may be carried in the same message.

[0242] In some embodiments, the first cell index in the random access resource information may be implemented in a variety of different ways, for example:

[0243] In one implementation, the random access resource information includes an SSB index, the first cell is a non-serving cell, and the first cell index in the random access resource information may be an index of the first cell in an additional cell list.

[0244] In another implementation, the random access resource information includes an SSB index, and the first cell is a serving cell. The first cell index in the random access resource information can be used to indicate that the first cell is a serving cell. Alternatively, the random access resource information may not include the first cell index, and the default is the serving cell.

[0245] In another implementation, the random access resource information includes a CSI-RS index, and the first cell index in the random access resource information can be used to indicate that the first cell is a serving cell. Alternatively, the random access resource information may not include the first cell index and the default is the serving cell.

[0246] In this way, the terminal device can determine the first cell corresponding to the random access resource according to whether the random access resource information contains the first cell index or the value of the first cell index.

[0247] In some embodiments, the random access resource information may include an SSB index. Optionally, the random access resource information may include only the SSB index, or the random access resource information may include the SSB index and also include at least one of the RO, the preamble index, and the first cell index. For example:

[0248] In one implementation, the random access resource information may include an SSB index and a preamble index.

[0249] For example, if the terminal device determines that the QCL parameter corresponding to the first reference signal resource is a new QCL parameter (for example, the first QCL parameter), and wants to notify the network device of the information corresponding to the new QCL parameter, the terminal device can determine the SSB index and preamble index in the random access resource information corresponding to the first reference signal resource based on the second information, and obtain the RO corresponding to the SSB index based on the SSB index (the RO can be one or more, and one RO corresponds to one time-frequency resource), and the preamble Preamble can be determined based on the preamble index. In this way, the terminal device can send the corresponding Preamble on the time-frequency resource corresponding to the RO. Optionally, after the network device receives the corresponding Preamble on the corresponding time-frequency resource, it can determine the first reference signal resource based on the RO and the Preamble, and determine that the QCL parameter corresponding to the first reference signal resource is the new QCL parameter, that is, the terminal device wants to notify the network device of the new QCL parameter.

[0250] Optionally, in this implementation, the random access resource information may not include the first cell index, and the default SSB index corresponds to the SSB of the serving cell.

[0251] In another implementation, the random access resource information may include an SSB index, a preamble index, and a first cell index.

[0252] For example, the first cell index can be used to indicate the index of the first cell in the additional cell list, that is, to indicate the cell index of the non-serving cell in the additional cell list. The additional cell list can configure multiple additional cells on a CC. For example, the additional cell list can include at least one of the following information for each additional cell: PCI of the additional cell, cell index of the additional cell in the list, SSB transmit power, SSB measurement time, SSB period, SSB position, and other information. Optionally, the additional cell list can also be referred to as an additional PCI list.

[0253] In another implementation, the random access resource information may include an SSB index, an RO, and a preamble index.

[0254] For example, if the terminal device determines that the QCL parameter corresponding to the first reference signal resource is a new QCL parameter, and wants to notify the network device of the information of the new QCL parameter, the terminal device can determine the SSB index, RO and preamble index in the random access resource information corresponding to the first reference signal resource based on the second information, determine the RO (RA occasion) used for random access by the terminal device based on the RO notified by the second information (the RO can be one or more, one RO corresponds to one time-frequency resource), and determine the preamble Preamble based on the preamble index. In this way, the terminal device can send the corresponding Preamble on the time-frequency resource corresponding to the RO. Optionally, after receiving the corresponding Preamble on the corresponding time-frequency resource, the network device can determine the first reference signal resource based on the RO and the Preamble, and determine that the QCL parameter corresponding to the first reference signal resource is the new QCL parameter, that is, the terminal device wants to notify the network device of the new QCL parameter.

[0255] In this way, when the random access information includes the SSB index, the terminal device can determine the RO and Preamble of the random access resource, and can initiate random access based on the RO and Preamble.

[0256] In some other embodiments, the random access resource information may include a CSI-RS resource index. Optionally, the random access resource may include only a CSI-RS resource index, or the random access resource may include a CSI-RS resource index and further include at least one of an RO, a preamble index, and a first cell index. For example:

[0257] In one implementation, the random access resource information may include a CSI-RS resource index, an RO, and a preamble index.

[0258] For example, if the terminal device determines that the QCL parameter corresponding to the first reference signal resource is a new QCL parameter, and wants to notify the network device of the information of the new QCL parameter, the terminal device can determine the CSI-RS resource index, RO and preamble index in the random access resource information corresponding to the first reference signal resource based on the second information, determine the RO (RA occasion) used for random access by the terminal device based on the RO notified by the second information (the RO can be one or more, one RO corresponds to one time-frequency resource), and determine the preamble Preamble based on the preamble index. In this way, the terminal device can send the corresponding Preamble on the time-frequency resource corresponding to the RO. Optionally, after receiving the corresponding Preamble on the corresponding time-frequency resource, the network device can determine the first reference signal resource based on the RO and the Preamble, and determine that the QCL parameter corresponding to the first reference signal resource is the new QCL parameter, that is, the terminal device wants to notify the network device of the new QCL parameter.

[0259] Optionally, if the random access resource information does not include RO, that is, RO is not configured, the terminal device can determine that the source reference signal corresponding to the CSI-RS resource index (for example, the source reference signal of QCL Type D) is the SSB of the first cell, and determine the RO corresponding to the SSB as the RO corresponding to the first reference signal resource according to the first mapping relationship.

[0260] Optionally, if the random access resource information does not include a preamble code index, that is, the preamble code index is not configured, the terminal device can determine that the source reference signal corresponding to the CSI-RS resource index (for example, the source reference signal of QCL Type D) is the SSB of the first cell, and determine the preamble corresponding to the SSB as the preamble corresponding to the first reference signal resource according to the second mapping relationship.

[0261] In one implementation, if the random access resource information includes a CSI-RS resource index, the first cell may be defaulted to the serving cell, and the random access resource information may not include the first cell index.

[0262] In this way, when the random access information includes the CSI-RS resource index, the terminal device can determine the RO and Preamble of the random access resource, and can initiate random access based on the RO and Preamble.

[0263] In some embodiments of the present disclosure, the reference signal resource is an SSB, and the SSB is associated with a non-serving cell, that is, the second cell corresponding to the reference signal resource is a non-serving cell. The random access resource information corresponding to the reference signal resource indicated by the second information may include at least one of the following examples:

[0264] Example 1: The random access resource information includes an SSB index, which may be the SSB index of the serving cell, i.e., the first cell index does not appear or is used to indicate the serving cell. Optionally, the random access resource information may also include at least one of an RO and a preamble index, or may not include either. If the RO is not included, the RO may be determined based on a first mapping relationship between the SSB of the serving cell and the RO; if the preamble index is not included, the preamble may also be determined based on a second mapping relationship between the SSB of the serving cell and the preamble.

[0265] Example 2: The random access resource information includes an SSB index, which may be the SSB index of a non-serving cell, i.e., the first cell index is the cell index of the non-serving cell. Optionally, the random access resource information may further include at least one of an RO and a preamble index, or may not include either. If the RO is not included, the RO may be determined based on a first mapping relationship between the SSB of the non-serving cell and the RO; if the preamble index is not included, the preamble may also be determined based on a second mapping relationship between the SSB of the non-serving cell and the preamble.

[0266] Example 3: The random access resource information includes a CSI-RS resource index. The source reference signal corresponding to the CSI-RS resource index (for example, the source reference signal of QCL Type D) is the SSB of the serving cell. The first cell index may not appear or be used to indicate the serving cell. Optionally, the random access resource information may also include at least one of the RO and the preamble index, or may not include either. If the RO is not included, the RO may be determined based on the first mapping relationship between the SSB of the serving cell and the RO; if the preamble index is not included, the Preamble may also be determined based on the second mapping relationship between the SSB of the serving cell and the Preamble.

[0267] Example 4: The random access resource information includes a CSI-RS resource index, and the source reference signal corresponding to the CSI-RS resource index is the SSB of the non-serving cell. The first cell index may not appear or be used to indicate the serving cell. Optionally, the random access resource information may also include at least one of the RO and the preamble index, or may not include either. If the RO is not included, the RO may be determined based on the first mapping relationship between the SSB of the non-serving cell and the RO; if the preamble index is not included, the Preamble may also be determined based on the second mapping relationship between the SSB of the non-serving cell and the Preamble.

[0268] In some embodiments of the present disclosure, the reference signal resource is a CSI-RS resource, and the source reference signal corresponding to the CSI-RS resource (e.g., a QCL Type D source reference signal) is the SSB of the non-serving cell. That is, the second cell corresponding to the reference signal resource is a non-serving cell. In this case, the random access resource information corresponding to the reference signal resource indicated by the second information may also include at least one of Examples 1 to 4 above.

[0269] In some embodiments of the present disclosure, the reference signal resource is an SSB, and the SSB is associated with a serving cell. That is, the second cell corresponding to the reference signal resource is the serving cell. In this case, the random access resource information corresponding to the reference signal resource indicated by the second information may also include at least one of Examples 1 to 4 above.

[0270] In some embodiments of the present disclosure, the reference signal resource is a CSI-RS resource, and the source reference signal corresponding to the CSI-RS resource (e.g., a QCL Type D source reference signal) is the SSB of the serving cell. That is, the second cell corresponding to the reference signal resource is the serving cell. In this case, the random access resource information corresponding to the reference signal resource indicated by the second information may also include at least one of Examples 1 to 4 above.

[0271] In this way, in the above-mentioned different scenarios, the terminal device can determine the random access resource corresponding to the reference signal resource based on the second information, and the network device can also determine the reference signal resource and the first QCL parameter corresponding to the reference signal resource based on the random access resource. This enables the terminal device to indicate the selected new QCL parameter to the network device based on the random access process, quickly updating the QCL parameter, improving beam-based transmission performance, and reducing the delay and signaling overhead of beam (QCL parameter) updates.

[0272] In some embodiments of the present disclosure, new QCL parameters may be differentiated for different TCI states through different random access resources.

[0273] For example, the above-mentioned reference signal resource can be a reference signal resource corresponding to quasi co-location type D (QCL Type D), and the quasi co-location type D can correspond to a transmission configuration indication TCI state, and different TCI states correspond to different random access resource information.

[0274] In this way, the terminal device can determine the random access resource based on the TCI state and initiate random access based on the random access resource, thereby implicitly informing the network device of the TCI state to which the above-mentioned new QCL parameters apply. The network device can determine the TCI state based on the random access resource (e.g., RO and / or preamble) used by the terminal device to initiate random access.

[0275] Optionally, the TCI state may include at least one of a joint TCI state, a downlink TCI state (DL TCI state), and an uplink TCI state (UL TCI state). The joint TCI state may be a TCI state for uplink and downlink transmission, the downlink TCI state may be a TCI state for downlink transmission, and the uplink TCI state may be a TCI state for uplink transmission.

[0276] Optionally, the random access resource information may include at least one of a random access opportunity RO and a preamble index.

[0277] In some embodiments, the QCL Type D may also be referred to as a QCL Type D assumption or a QCL Type D parameter.

[0278] In some embodiments, when the reference signal resource used to determine the new QCL parameter is determined by the terminal device as the reference signal resource of the QCL parameter corresponding to the joint TCI state, or as the reference signal resource of the QCL parameter corresponding to the downlink TCI state, or as the reference signal resource of the QCL parameter corresponding to the uplink TCI state, at least one of the RO and Preamble of the corresponding random access resource is independently configured, that is, configured to be different. In this way, the network device can also determine whether the terminal wants to determine the new QCL parameter corresponding to the reference signal resource corresponding to the random access resource as a new joint TCI state, a downlink TCI state, or an uplink TCI state based on different random access resources. For example, if the random access resource corresponds to the random access resource corresponding to the DL TCI state, the network device only updates the QCL parameter corresponding to the DL TCI state, and may not update the QCL parameter corresponding to the UL TCI state.

[0279] Step S2103: The terminal device determines a first reference signal resource corresponding to the first QCL parameter.

[0280] In some embodiments, the first QCL parameter may be a target QCL parameter that the terminal device is ready to switch to.

[0281] In some embodiments, the terminal device may determine a first reference signal resource corresponding to the first QCL parameter based on the beam measurement result. For example, the reference signal resource with the best beam measurement result among multiple reference signal resources may be used as the first reference signal resource, where the first reference signal resource is the reference signal resource corresponding to the first QCL parameter. Optionally, the best beam measurement result may be a maximum L1-RSRP or a maximum L1-SINR.

[0282] Step S2104: The terminal device determines first random access resource information corresponding to the first reference signal resource.

[0283] In some embodiments, the terminal device may determine the first random access resource (e.g., at least one of the RO, the random access preamble, and the first cell index) corresponding to the first reference signal resource based on the second information. Optionally, the terminal device may determine the random access resource corresponding to the reference signal resource based on the second information. For a specific implementation manner, reference may be made to the description in step S2102, which is not repeated here.

[0284] Step S2105: The terminal device sends a random access preamble code to the network device.

[0285] In some embodiments, the network device may receive a random access preamble. For example, the network device may receive a random access preamble sent by a terminal device.

[0286] Optionally, the terminal device may determine the first cell based on the first random access resource information, and send a random access preamble code to the network device (base station) to which the first cell belongs, that is, the terminal device initiates random access in the first cell.

[0287] Optionally, the network device in step S2105 and thereafter and the network device in step S2102 and thereafter may be the same network device or different network devices. For example, if the first cell is a non-service cell, and the non-service cell and the service cell belong to different network devices, the network device in step S2105 and thereafter and the network device in step S2102 and thereafter may be different network devices. For another example, if the first cell is a service cell, the network device in step S2105 and thereafter and the network device in step S2102 and thereafter may be the same network device. For another example, if the first cell is a non-service cell, and the non-service cell and the service cell belong to the same network device, the network device in step S2105 and thereafter and the network device in step S2102 and thereafter may also be the same network device.

[0288] In some embodiments, the terminal device sends a random access preamble to the network device according to the first random access resource information. For example, the terminal device may send the random access preamble on a determined random access opportunity (RO).

[0289] In this way, the terminal device can implicitly notify the network device of the selected first QCL parameter (such as a new QCL parameter or a switched target QCL parameter) based on the random access process, so that the network device and the terminal device maintain consistent understanding of the first QCL parameter.

[0290] Step S2106: The network device determines a first QCL parameter.

[0291] In some embodiments, the network device can determine the first reference signal resource based on the received random access preamble code and / or the RO received of the random access preamble code, and determine the first QCL parameter corresponding to the first reference signal resource. The first QCL parameter can be a new QCL parameter determined by the terminal device based on the beam measurement result.

[0292] Step S2107: The network device sends a physical downlink control channel (PDCCH) to the terminal device based on the first QCL parameter.

[0293] In some embodiments, the terminal device may receive a PDCCH. For example, the terminal device may receive a PDCCH sent by a network device based on a first QCL parameter.

[0294] In some embodiments, the PDCCH may be used to instruct a terminal device to perform downlink transmission and / or uplink transmission based on a first QCL parameter.

[0295] In some embodiments, the terminal device may receive the PDCCH within a dedicated search space.

[0296] Step S2108: The network device and the terminal device perform downlink transmission and / or uplink transmission based on the first QCL parameter.

[0297] In some embodiments, the terminal device may perform downlink transmission and / or uplink transmission with the network device based on the first QCL parameter after receiving the PDCCH for the first time. The first time may be a time specified by the protocol, or a time configured and notified to the terminal device by the network device.

[0298] In some embodiments, the network device may also perform downlink transmission and / or uplink transmission with the terminal device based on the first QCL parameter after the first time of sending the PDCCH.

[0299] In some embodiments, the downlink transmission may include transmission of at least one of PDCCH, Physical Downlink Shared Channel (PDSCH), and CSI-RS (based on joint TCI state or DL ​​TCI state).

[0300] In some embodiments, the uplink transmission may include the transmission of at least one of a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), and a sounding reference signal (SRS) (based on a joint TCI state or a UL TCI state).

[0301] In this way, the terminal device can implicitly notify the network device of the selected first QCL parameter (for example, a new QCL parameter or a switched target QCL parameter) based on the random access process, so that the network device can determine the first reference signal resource and the first QCL parameter corresponding to the first reference signal resource through the random access resource. The network device and the terminal device maintain consistency in their understanding of the first QCL parameter, so that the QCL parameter can be quickly updated, and uplink and / or downlink transmission can be performed based on the new QCL parameter, thereby improving the beam-based transmission performance, reducing the delay and signaling overhead of the beam (QCL parameter) update, and improving the transmission quality.

[0302] The method involved in the embodiment of the present disclosure may include at least one of the above steps S2101 to S2108. For example, step S2102 can be implemented as an independent embodiment, step S2101 can be implemented as an independent embodiment, step S2101+S2102 can be implemented as an independent embodiment, step S2101+S2102+S2105 can be implemented as an independent embodiment, step S2101+S2102+S2105+S2106 can be implemented as an independent embodiment, step S2101+S2102+S2103+S2104+S2105 can be implemented as an independent embodiment, step S2101+S2102+S2103+S2104+S2105+S2107+S2108 can be implemented as an independent embodiment, and step S2101+S2102+S2105+S2106+S2107+S2108 can be implemented as an independent embodiment, but is not limited to this.

[0303] In some embodiments, the above steps S2101 to S2108 can be executed in a swapped order or simultaneously.

[0304] In some embodiments, the above steps S2101 to S2108 are all optional steps.

[0305] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2A .

[0306] FIG2B is an interactive diagram illustrating a resource determination method according to an embodiment of the present disclosure. As shown in FIG2B , the embodiment of the present disclosure relates to a resource determination method, which can be executed by a communication system and can include:

[0307] Step S2201: The network device sends a first message to the terminal device.

[0308] The optional implementation of step S2201 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0309] Step S2202: The network device sends the second information to the terminal device.

[0310] The optional implementation of step S2202 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0311] Step S2203: The terminal device determines a first reference signal resource corresponding to the first QCL parameter.

[0312] The optional implementation of step S2203 can refer to the optional implementation of step S2103 in FIG2A and other related parts in the embodiment involved in FIG2A , which will not be described in detail here.

[0313] Step S2204: The terminal device determines first random access resource information corresponding to the first reference signal resource.

[0314] The optional implementation of step S2204 can refer to the optional implementation of step S2104 in FIG. 2A and other related parts in the embodiment involved in FIG. 2A , which will not be described in detail here.

[0315] Step S2205: The terminal device sends a random access preamble code to the network device.

[0316] The optional implementation of step S2205 can refer to the optional implementation of step S2105 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0317] Step S2206: The network device determines a first QCL parameter.

[0318] The optional implementation of step S2206 can refer to the optional implementation of step S2106 in FIG2A and other related parts in the embodiment involved in FIG2A , which will not be described in detail here.

[0319] In some embodiments, the above steps are all optional steps.

[0320] In some embodiments, the embodiment shown in FIG. 2B may also be combined with any one or more steps in the embodiment shown in FIG. 2A to form a new embodiment.

[0321] FIG2C is an interactive diagram illustrating a resource determination method according to an embodiment of the present disclosure. As shown in FIG2C , an embodiment of the present disclosure relates to a resource determination method, which can be executed by a communication system and can include:

[0322] Step S2201: The network device sends a first message to the terminal device.

[0323] The optional implementation of step S2301 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0324] Step S2302: The network device sends the second information to the terminal device.

[0325] The optional implementation of step S2302 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0326] In some embodiments, the above steps are all optional steps.

[0327] In some embodiments, the embodiment shown in FIG. 2C may also be combined with any one or more steps in the embodiment shown in FIG. 2A to form a new embodiment.

[0328] FIG3A is a flow chart of a resource determination method according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a resource determination method, which can be executed by a terminal device. The method may include:

[0329] Step S3101: Obtain first information.

[0330] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0331] In some embodiments, the terminal device may receive the first information sent by the network device, but is not limited thereto. The terminal device may also receive the first information sent by other entities.

[0332] In some embodiments, the terminal device may obtain first information specified by the protocol.

[0333] In some embodiments, the terminal device may obtain the first information from an upper layer(s).

[0334] In some embodiments, the terminal device may perform processing to obtain the first information.

[0335] In some embodiments, step S3101 may be omitted, and the terminal device may autonomously implement the function indicated by the first information, or the above function may be default or by default.

[0336] Step S3102: Obtain second information.

[0337] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0338] In some embodiments, the terminal device may receive the second information sent by the network device, but is not limited thereto. The terminal device may also receive the second information sent by other entities.

[0339] In some embodiments, the terminal device may obtain second information specified by the protocol.

[0340] In some embodiments, the terminal device may obtain the second information from upper layer(s).

[0341] In some embodiments, the terminal device may perform processing to obtain the second information.

[0342] In some embodiments, step S3102 may be omitted, and the terminal device may autonomously implement the function indicated by the second information, or the above function may be default or by default.

[0343] Step S3103: Determine a first reference signal resource corresponding to the first QCL parameter.

[0344] The optional implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0345] Step S3104: Determine first random access resource information corresponding to the first reference signal resource.

[0346] The optional implementation of step S3104 can refer to the optional implementation of step S2104 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0347] Step S3105: Send a random access preamble.

[0348] The optional implementation of step S3105 can refer to the optional implementation of step S2105 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0349] In some embodiments, the terminal device may send the random access preamble code to the network device, but is not limited thereto. The terminal device may also send the random access preamble code to other entities.

[0350] Step S3106: Receive PDCCH based on the first QCL parameter.

[0351] The optional implementation of step S3106 can refer to the optional implementation of step S2107 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0352] Step S3107: Perform downlink transmission and / or uplink transmission based on the first QCL parameter.

[0353] The optional implementation of step S3107 can refer to the optional implementation of step S2108 in FIG2A and other related parts in the embodiment involved in FIG2A , which will not be described in detail here.

[0354] The method according to the embodiments of the present disclosure may include at least one of steps S3101 to S3107. For example, step S3102 may be implemented as an independent embodiment, step S3101 may be implemented as an independent embodiment, steps S3101+S3102 may be implemented as an independent embodiment, steps S3101+S3102+S3105 may be implemented as an independent embodiment, steps S3101+S3102+S3103+S3104+S3105 may be implemented as an independent embodiment, and steps S3101+S3102+S3105+S3106+S3107 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0355] In some embodiments, the above steps S3101 to S3107 can be executed in a swapped order or simultaneously.

[0356] In some embodiments, the above steps S3101 to S3107 are all optional steps.

[0357] FIG3B is a flow chart of a resource determination method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to a resource determination method, which can be executed by a terminal device. The method may include:

[0358] Step S3201: Obtain first information.

[0359] The optional implementation of step S3201 can be found in step S2101 of FIG. 2A , the optional implementation of step S3101 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2A and FIG. 3A , which will not be repeated here.

[0360] Step S3202: Obtain second information.

[0361] The optional implementation of step S3202 can be found in step S2102 of FIG. 2A , the optional implementation of step S3102 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2A and FIG. 3A , which will not be described in detail here.

[0362] Step S3203: Determine a first reference signal resource corresponding to the first QCL parameter.

[0363] The optional implementation of step S3203 can be found in step S2103 of FIG. 2A , the optional implementation of step S3103 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2A and FIG. 3A , which will not be described in detail here.

[0364] Step S3204: Determine first random access resource information corresponding to the first reference signal resource.

[0365] The optional implementation of step S3204 can be found in step S2104 of FIG. 2A , the optional implementation of step S3104 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2A and FIG. 3A , which will not be described in detail here.

[0366] Step S3205: Send a random access preamble.

[0367] The optional implementation of step S3205 can be found in step S2105 of FIG. 2A , the optional implementation of step S3105 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2A and FIG. 3A , which will not be described in detail here.

[0368] In some embodiments, the above steps are all optional steps.

[0369] In some embodiments, the embodiment shown in FIG. 3B may also be combined with any one or more steps in the embodiment shown in FIG. 3A to form a new embodiment.

[0370] FIG3C is a flow chart of a resource determination method according to an embodiment of the present disclosure. As shown in FIG3C , the embodiment of the present disclosure relates to a resource determination method, which can be executed by a terminal device. The method may include:

[0371] Step S3301: Obtain first information.

[0372] The optional implementation of step S3301 can be found in step S2101 of FIG. 2A , the optional implementation of step S3101 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2A and FIG. 3A , which will not be repeated here.

[0373] In some embodiments, the first information is used to configure reference signal resources, and the reference signal resources are used to determine first quasi co-sited QCL parameters.

[0374] Step S3302: Obtain second information.

[0375] The optional implementation of step S3302 can be found in step S2102 of FIG. 2A , the optional implementation of step S3102 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2A and FIG. 3A , which will not be repeated here.

[0376] In some embodiments, the second information is used to determine random access resource information corresponding to the reference signal resource.

[0377] In some embodiments, the above steps are all optional steps.

[0378] In some embodiments, the embodiment shown in FIG. 3C may also be combined with any one or more steps in the embodiment shown in FIG. 3A to form a new embodiment.

[0379] In some embodiments, the random access resource information includes at least one of the following:

[0380] Synchronization signal block SSB index;

[0381] Channel state information reference signal CSI-RS resource index;

[0382] Random access opportunity RO;

[0383] Preamble index;

[0384] A first cell index, where the first cell index is used to determine a first cell corresponding to the random access resource.

[0385] In some embodiments, the configuration information of the reference signal resource includes at least one of the following:

[0386] Reference signal resource identifier;

[0387] The second cell index is used to determine the second cell corresponding to the reference signal resource identifier, and the second cell is a serving cell or a non-serving cell of the terminal device.

[0388] In some embodiments, the reference signal resource is a reference signal resource corresponding to a QCL parameter, the QCL parameter corresponds to a transmission configuration indicator TCI state, and different TCI states correspond to different random access resource information, wherein:

[0389] The TCI state includes at least one of a joint TCI state, a downlink TCI state, and an uplink TCI state;

[0390] The random access resource information includes at least one of a random access opportunity RO and a preamble index.

[0391] In some embodiments, the second cell is a non-serving cell of the terminal device, wherein:

[0392] The reference signal resource is the SSB of the second cell; or,

[0393] The reference signal resource is a CSI-RS resource, and the source reference signal corresponding to the CSI-RS resource is the SSB of the second cell.

[0394] In some embodiments,

[0395] The random access resource information includes an SSB index, where the SSB index in the random access resource information is an SSB index of a first cell, where the first cell is a serving cell or a non-serving cell of the terminal device; or

[0396] The random access resource information includes a CSI-RS resource index, and the source reference signal corresponding to the CSI-RS resource index in the random access resource information is the SSB index of the first cell.

[0397] In some embodiments,

[0398] The random access resource information does not include an RO, and the RO corresponding to the random access resource is determined according to a first mapping relationship, where the first mapping relationship is a mapping relationship between an SSB index of the first cell and an RO; and / or,

[0399] The random access resource information does not include a preamble code index, and the preamble code index corresponding to the random access resource is determined according to a second mapping relationship, where the second mapping relationship is a mapping relationship between the SSB index of the first cell and the preamble code index.

[0400] In some embodiments, the first cell is a non-serving cell, and the method further includes:

[0401] Third information is received, where the third information is used to determine the first mapping relationship and / or the second mapping relationship corresponding to the non-serving cell.

[0402] In some embodiments,

[0403] The random access resource information includes an SSB index, the first cell is a non-serving cell, and the first cell index in the random access resource information is an index of the first cell in the additional cell list; or

[0404] The random access resource information includes an SSB index, the first cell is a serving cell, and the first cell index in the random access resource information is used to indicate that the first cell is a serving cell, or the random access resource information does not include the first cell index;

[0405] The random access resource information includes a CSI-RS index, and the first cell index in the random access resource information is used to indicate that the first cell is a serving cell, or the random access resource information does not include the first cell index.

[0406] In some embodiments, the method further comprises:

[0407] Determining a first reference signal resource corresponding to a first QCL parameter;

[0408] Determining first random access resource information corresponding to the first reference signal resource;

[0409] A random access preamble is sent according to the first random access resource information.

[0410] In some embodiments, the method further comprises:

[0411] A physical downlink control channel (PDCCH) is received based on the first QCL parameter.

[0412] In some embodiments, the method further comprises:

[0413] Downlink transmission and / or uplink transmission is performed based on the first QCL parameter.

[0414] FIG4A is a flow chart of a resource determination method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to a resource determination method, which can be executed by a network device, and the method includes:

[0415] Step S4101: Send the first information.

[0416] The optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0417] In some embodiments, the network device may send the first information to the terminal device, but is not limited thereto. The network device may also send the first information to other entities.

[0418] Step S4102: Send the second information.

[0419] The optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0420] In some embodiments, the network device may send the second information to the terminal device, but is not limited thereto. The network device may also send the second information to other entities.

[0421] Step S4103: Receive a random access preamble.

[0422] The optional implementation of step S4103 can refer to the optional implementation of step S2105 in FIG2A and other related parts in the embodiment involved in FIG2A , which will not be described in detail here.

[0423] Step S4104: Determine the first QCL parameter.

[0424] The optional implementation of step S4104 can refer to the optional implementation of step S2106 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0425] Step S4105: Send PDCCH based on the first QCL parameter.

[0426] The optional implementation of step S4105 can refer to the optional implementation of step S2107 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0427] In some embodiments, the network device may send the PDCCH to the terminal device, but is not limited thereto. The network device may also send the PDCCH to other entities.

[0428] Step S4106: Perform downlink transmission and / or uplink transmission with the terminal device based on the first QCL parameter.

[0429] The optional implementation of step S4106 can refer to the optional implementation of step S2108 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0430] The method according to the embodiments of the present disclosure may include at least one of steps S4101 to S4106. For example, step S4102 may be implemented as an independent embodiment, step S4101 may be implemented as an independent embodiment, steps S4101+S4102 may be implemented as an independent embodiment, steps S4101+S4102+S4103 may be implemented as an independent embodiment, steps S4101+S4102+S4103+S4104 may be implemented as an independent embodiment, and steps S4101+S4102+S4103+S4105+S4106 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0431] In some embodiments, the above steps S4101 to S4106 can be executed in a swapped order or simultaneously.

[0432] In some embodiments, the above steps S4101 to S4106 are all optional steps.

[0433] FIG4B is a flow chart of a resource determination method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to a resource determination method, which can be performed by a network device. The method may include:

[0434] Step S4201: Send the first message.

[0435] The optional implementation of step S4201 can be found in step S2101 of FIG. 2A , the optional implementation of step S4101 of FIG. 4A , and other related parts in the embodiments involved in FIG. 2A and FIG. 4A , which will not be repeated here.

[0436] Step S4202: Send the second information.

[0437] The optional implementation of step S4202 can be found in step S2102 of FIG. 2A , the optional implementation of step S4102 of FIG. 4A , and other related parts in the embodiments involved in FIG. 2A and FIG. 4A , which will not be described in detail here.

[0438] Step S4203: Receive a random access preamble.

[0439] The optional implementation of step S4203 can be found in step S2105 of FIG. 2A , the optional implementation of step S4103 of FIG. 4A , and other related parts in the embodiments involved in FIG. 2A and FIG. 4A , which will not be described in detail here.

[0440] Step S4204: Determine the first QCL parameter.

[0441] The optional implementation of step S4204 can be found in step S2106 of FIG. 2A , the optional implementation of step S4104 of FIG. 4A , and other related parts in the embodiments involved in FIG. 2A and FIG. 4A , which will not be described in detail here.

[0442] In some embodiments, the above steps are all optional steps.

[0443] In some embodiments, the embodiment shown in FIG. 4B may also be combined with any one or more steps in the embodiment shown in FIG. 4A to form a new embodiment.

[0444] FIG4C is a flow chart of a resource determination method according to an embodiment of the present disclosure. As shown in FIG4C , an embodiment of the present disclosure relates to a resource determination method, which can be performed by a network device. The method may include:

[0445] Step S4301: Send the first message.

[0446] The optional implementation of step S4301 can be found in step S2101 of FIG. 2A , the optional implementation of step S4101 of FIG. 4A , and other related parts in the embodiments involved in FIG. 2A and FIG. 4A , which will not be repeated here.

[0447] In some embodiments, the first information is used to configure reference signal resources, and the reference signal resources are used to determine first quasi co-sited QCL parameters.

[0448] Step S4302: Send the second information.

[0449] The optional implementation of step S4302 can be found in step S2102 of FIG. 2A , the optional implementation of step S4102 of FIG. 4A , and other related parts in the embodiments involved in FIG. 2A and FIG. 4A , which will not be described in detail here.

[0450] In some embodiments, the second information is used to determine random access resource information corresponding to the reference signal resource.

[0451] In some embodiments, the above steps are all optional steps.

[0452] In some embodiments, the embodiment shown in FIG. 4C may also be combined with any one or more steps in the embodiment shown in FIG. 4A to form a new embodiment.

[0453] In some embodiments, the random access resource information includes at least one of the following:

[0454] Synchronization signal block SSB index;

[0455] Channel state information reference signal CSI-RS resource index;

[0456] Random access opportunity RO;

[0457] Preamble index;

[0458] A first cell index, where the first cell index is used to determine a first cell corresponding to the random access resource.

[0459] In some embodiments, the configuration information of the reference signal resource includes at least one of the following:

[0460] Reference signal resource identifier;

[0461] The second cell index is used to determine the second cell corresponding to the reference signal resource identifier, and the second cell is a serving cell or a non-serving cell of the terminal device.

[0462] In some embodiments, the reference signal resource is a reference signal resource corresponding to a QCL parameter, the co-site type D corresponds to a transmission configuration indication TCI state, and different TCI states correspond to different random access resource information, wherein:

[0463] The TCI state includes at least one of a joint TCI state, a downlink TCI state, and an uplink TCI state;

[0464] The random access resource information includes at least one of a random access opportunity RO and a preamble index.

[0465] In some embodiments, the second cell is a non-serving cell of the terminal device, wherein:

[0466] The reference signal resource is the SSB of the second cell; or,

[0467] The reference signal resource is a CSI-RS resource, and the source reference signal corresponding to the CSI-RS resource is the SSB of the second cell.

[0468] In some embodiments,

[0469] The random access resource information includes an SSB index, where the SSB index in the random access resource information is an SSB index of a first cell, where the first cell is a serving cell or a non-serving cell of the terminal device; or

[0470] The random access resource information includes a CSI-RS resource index, and the source reference signal corresponding to the CSI-RS resource index in the random access resource information is the SSB index of the first cell.

[0471] In some embodiments,

[0472] The random access resource information does not include an RO, and the RO corresponding to the random access resource is determined according to a first mapping relationship, where the first mapping relationship is a mapping relationship between an SSB index of the first cell and an RO; and / or,

[0473] The random access resource information does not include a preamble code index, and the preamble code index corresponding to the random access resource is determined according to a second mapping relationship, where the second mapping relationship is a mapping relationship between the SSB index of the first cell and the preamble code index.

[0474] In some embodiments, the first cell is a non-serving cell, and the method further includes:

[0475] Third information is received, where the third information is used to determine the first mapping relationship and / or the second mapping relationship corresponding to the non-serving cell.

[0476] In some embodiments,

[0477] The random access resource information includes an SSB index, the first cell is a non-serving cell, and the first cell index in the random access resource information is an index of the first cell in the additional cell list; or

[0478] The random access resource information includes an SSB index, the first cell is a serving cell, and the first cell index in the random access resource information is used to indicate that the first cell is a serving cell, or the random access resource information does not include the first cell index;

[0479] The random access resource information includes a CSI-RS index, and the first cell index in the random access resource information is used to indicate that the first cell is a serving cell, or the random access resource information does not include the first cell index.

[0480] In some embodiments, the method further comprises:

[0481] Receive a random access preamble code, where the random access preamble code is a random access preamble code sent by a terminal device according to first random access resource information, where the first random access resource information is random access resource information corresponding to a first reference signal resource, and where the first reference signal resource is a reference signal resource corresponding to a first QCL parameter determined by the terminal device.

[0482] In some embodiments, the method further comprises:

[0483] A physical downlink control channel PDCCH is sent to the terminal device based on the first QCL parameter.

[0484] In some embodiments, the method further comprises:

[0485] Perform downlink transmission and / or uplink transmission with the terminal device based on the first QCL parameter.

[0486] In some embodiments of the present disclosure, a communication system is provided, which may include a terminal device and a network device, wherein the terminal device can execute the resource determination method executed by the terminal device in the aforementioned embodiment of the present disclosure; the network device can execute the resource determination method executed by the network device in the aforementioned embodiment of the present disclosure.

[0487] 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 device 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.

[0488] 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), and the functions of some or all of the above units or modules are realized 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.

[0489] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0490] Figure 5A is a structural diagram of a terminal device proposed in an embodiment of the present disclosure. As shown in Figure 5A, the terminal device 101 may include: at least one of a transceiver module 211, a processing module 212, etc. In some embodiments, the transceiver module 211 is configured to receive first information, where the first information is used to configure a reference signal resource, and the reference signal resource is used to determine a first quasi-co-site QCL parameter; and receive second information, where the second information is used to determine random access resource information corresponding to the reference signal resource. Optionally, the transceiver module 211 can be used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2101, step S2102, step S2105, step S2107, step S2108, but not limited thereto) performed by the terminal device 101 in any of the above methods, which will not be repeated here. Optionally, the processing module 212 can be used to execute at least one of the other steps (such as step S2103, step S2104, step S2106, but not limited to these) performed by the terminal device 101 in any of the above methods, which will not be repeated here.

[0491] Figure 5B is a structural diagram of a network device proposed in an embodiment of the present disclosure. As shown in Figure 5B, the network device 102 may include: at least one of a transceiver module 221, a processing module 222, etc. In some embodiments, the transceiver module 221 is configured to send first information, where the first information is used to configure a reference signal resource, and the reference signal resource is used to determine a first quasi-co-site QCL parameter; and send second information, where the second information is used to determine random access resource information corresponding to the reference signal resource. Optionally, the transceiver module 221 can be used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2101, step S2102, step S2105, step S2107, step S2108, but not limited thereto) performed by the network device 102 in any of the above methods, which will not be repeated here. Optionally, the processing module 222 can be used to execute at least one of the other steps (such as step S2103, step S2104, step S2106, but not limited thereto) performed by the network device 102 in any of the above methods, which will not be repeated here.

[0492] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0493] 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.

[0494] Figure 6A is a schematic diagram of the structure of a communication device 300 proposed in an embodiment of the present disclosure. Communication device 300 can be a network device (e.g., an access network device, a core network device, etc.), or a terminal device (e.g., a user device, etc.). It can also be a chip, chip system, or processor that supports a network device to implement any of the above methods, or a chip, chip system, or processor that supports a terminal device to implement any of the above methods. Communication device 300 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.

[0495] As shown in Figure 6A, the communication device 300 includes one or more processors 301. The processor 301 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 the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 300 can be used to perform any of the above methods. Optionally, one or more processors 301 are used to call instructions to enable the communication device 300 to perform any of the above methods.

[0496] In some embodiments, the communication device 300 may further include one or more transceivers 302. When the communication device 300 includes one or more transceivers 302, the transceiver 302 may perform at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101, step S2102, step S2105, step S2107, and step S2108, but not limited thereto), and the processor 301 may perform at least one of the other steps (for example, step S2103, step S2104, and step S2106, but not limited thereto).

[0497] 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, transceiver circuit, interface circuit, and interface 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.

[0498] In some embodiments, the communication device 300 also includes one or more memories 303 for storing data. Alternatively, all or part of the memories 303 may be located outside the communication device 300. In alternative embodiments, the communication device 300 may include one or more interface circuits 304. Optionally, the interface circuits 304 are connected to the memories 303 and can be used to receive data from the memories 303 or other devices, or to send data to the memories 303 or other devices. For example, the interface circuits 304 can read data stored in the memories 303 and send the data to the processor 301.

[0499] The communication device 300 described in the above embodiment may be a network device or a terminal device, but the scope of the communication device 300 described in the present disclosure is not limited thereto, and the structure of the communication device 300 may not be limited by FIG. 6A. 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.

[0500] FIG6B is a schematic diagram of the structure of the chip 400 proposed in an embodiment of the present disclosure. If the communication device 300 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 400 shown in FIG6B, but the present disclosure is not limited thereto.

[0501] The chip 400 includes one or more processors 401 , and the chip 400 is configured to execute any of the above methods.

[0502] In some embodiments, chip 400 further includes one or more interface circuits 404. Alternatively, the terms interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 400 further includes one or more memories 403 for storing data. Alternatively, all or part of memories 403 may be located external to chip 400.

[0503] Optionally, the interface circuit 404 is connected to the memory 403. The interface circuit 404 can be used to receive data from the memory 403 or other devices, and the interface circuit 404 can be used to send data to the memory 403 or other devices. For example, the interface circuit 404 can read data stored in the memory 403 and send the data to the processor 401.

[0504] In some embodiments, the interface circuit 404 performs at least one of the communication steps (e.g., steps S2101, S2102, S2105, S2107, and S2108) of the above method. The interface circuit 404 performing the communication steps (e.g., steps S2101, S2102, S2105, S2107, and S2108) of the above method, for example, means that the interface circuit 404 performs data exchange between the processor 401, chip 400, memory 403, or a transceiver device. In some embodiments, the processor 401 may perform at least one of the other steps (e.g., steps S2103, S2104, and S2106, but not limited thereto).

[0505] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0506] The embodiments of the present disclosure further provide a storage medium having instructions stored thereon. When the instructions are executed on the communication device 300, the communication device 300 executes 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 transient storage medium.

[0507] The embodiment of the present disclosure further provides a program product, which, when executed by the communication device 300, enables the communication device 300 to perform any of the above methods. Optionally, the program product may be a computer program product.

[0508] The embodiments of the present disclosure also provide a computer program, which, when executed on a computer, enables the computer to execute any one of the above methods.

Claims

1. A resource determination method, characterized in that, The method includes: Receiving first information for configuring a reference signal resource, where the reference signal resource is used to determine first quasi co-location (QCL) parameters; Receiving second information for determining random access resource information corresponding to the reference signal resource.

2. The method according to claim 1, characterized in that, The random access resource information includes at least one of the following: Synchronization signal block (SSB) index; Channel state information reference signal (CSI-RS) resource index; Random access opportunity (RO); Preamble index; First cell index for determining a first cell corresponding to the random access resource.

3. The method according to claim 1, wherein The configuration information of the reference signal resource includes at least one of the following: Reference signal resource identifier; Second cell index for determining a second cell corresponding to the reference signal resource identifier, where the second cell is a serving cell or a non-serving cell of the terminal device.

4. The method according to claim 3, wherein The reference signal resource is a reference signal resource corresponding to QCL parameters, and the QCL parameters correspond to transmission configuration indication (TCI) states, where different TCI states correspond to different random access resource information, where: The TCI state includes at least one of a combined TCI state, a downlink TCI state, and an uplink TCI state; The random access resource information includes at least one of a random access opportunity (RO) and a preamble index.

5. The method according to claim 3, characterized in that, The second cell is a non-serving cell of the terminal device, where: The reference signal resource is the SSB of the second cell; or, The reference signal resource is a CSI-RS resource, and the source reference signal corresponding to the CSI-RS resource is the SSB of the second cell.

6. The method according to claim 5, wherein The random access resource information includes an SSB index, and the SSB index in the random access resource information is the SSB index of a first cell, where the first cell is a serving cell or a non-serving cell of the terminal device; or, The random access resource information includes a CSI-RS resource index, and the source reference signal corresponding to the CSI-RS resource index in the random access resource information is the SSB index of the first cell.

7. The method according to claim 6, wherein The random access resource information does not include an RO, and the RO corresponding to the random access resource is determined according to a first mapping relationship, where the first mapping relationship is a mapping relationship between the SSB index of the first cell and the RO; And / or, The random access resource information does not include a preamble index, and the preamble index corresponding to the random access resource is determined according to a second mapping relationship, where the second mapping relationship is a mapping relationship between the SSB index of the first cell and the preamble index.

8. The method according to claim 7, wherein When the first cell is a non-serving cell, the method further includes: Receiving third information for determining the first mapping relationship and / or the second mapping relationship corresponding to the non-serving cell.

9. The method according to any one of claims 6 to 8, wherein The random access resource information includes an SSB index, the first cell is a non-serving cell, and the first cell index in the random access resource information is the index of the first cell in the additional cell list; or, The random access resource information includes an SSB index, the first cell is a serving cell, the first cell index in the random access resource information is used to indicate that the first cell is a serving cell, or the random access resource information does not include a first cell index; The random access resource information includes a CSI-RS index, the first cell index in the random access resource information is used to indicate that the first cell is a serving cell, or the random access resource information does not include a first cell index.

10. The method according to any one of claims 1 to 9, characterized in that, The method further includes: Determining a first reference signal resource corresponding to a first QCL parameter; Determining first random access resource information corresponding to the first reference signal resource; Sending a random access preamble according to the first random access resource information.

11. The method according to claim 10, wherein The method further includes: Receiving a physical downlink control channel PDCCH based on the first QCL parameter.

12. The method according to claim 11, wherein The method further includes: Performing downlink transmission and / or uplink transmission based on the first QCL parameter.

13. A resource determination method, characterized in that, The method includes: Sending first information for configuring a reference signal resource, where the reference signal resource is used to determine a first quasi-co-location QCL parameter; Sending second information for determining random access resource information corresponding to the reference signal resource.

14. The method according to claim 13, wherein The random access resource information includes at least one of the following: Synchronization signal block SSB index; Channel state information reference signal CSI-RS resource index; Random access opportunity RO; Preamble index; A first cell index for determining a first cell corresponding to the random access resource.

15. The method according to claim 13, wherein The configuration information of the reference signal resource includes at least one of the following: Reference signal resource identifier; A second cell index for determining a second cell corresponding to the reference signal resource identifier, where the second cell is a serving cell or a non-serving cell of the terminal device.

16. The method according to claim 15, characterized in that, The reference signal resource is a reference signal resource corresponding to a QCL parameter, the QCL parameter corresponds to a transmission configuration indication TCI state, and different TCI states correspond to different random access resource information, where: The TCI state includes at least one of a joint TCI state, a downlink TCI state, and an uplink TCI state; The random access resource information includes at least one of a random access opportunity RO and a preamble index.

17. The method according to claim 15, characterized in that, The second cell is a non-serving cell of the terminal device, where: The reference signal resource is the SSB of the second cell; or, The reference signal resource is a CSI-RS resource, and the source reference signal corresponding to the CSI-RS resource is the SSB of the second cell.

18. The method according to claim 17, wherein The random access resource information includes an SSB index, and the SSB index in the random access resource information is the SSB index of a first cell, where the first cell is the serving cell or non-serving cell of the terminal device; or, The random access resource information includes a CSI-RS resource index, and the source reference signal corresponding to the CSI-RS resource index in the random access resource information is the SSB index of the first cell.

19. The method according to claim 18, wherein The random access resource information does not include an RO, and the RO corresponding to the random access resource is determined according to a first mapping relationship, where the first mapping relationship is the mapping relationship between the SSB index of the first cell and the RO; and / or The random access resource information does not include a preamble index, and the preamble index corresponding to the random access resource is determined according to a second mapping relationship, where the second mapping relationship is the mapping relationship between the SSB index of the first cell and the preamble index.

20. The method according to claim 19, characterized in that, When the first cell is a non-serving cell, the method further includes: Receiving third information, where the third information is used to determine the first mapping relationship and / or the second mapping relationship corresponding to the non-serving cell.

21. The method according to any one of claims 18 to 20, wherein The random access resource information includes an SSB index, the first cell is a non-serving cell, and the first cell index in the random access resource information is the index of the first cell in the additional cell list; or, The random access resource information includes an SSB index, the first cell is a serving cell, and the first cell index in the random access resource information is used to indicate that the first cell is a serving cell, or the random access resource information does not include a first cell index; The random access resource information includes a CSI-RS index, and the first cell index in the random access resource information is used to indicate that the first cell is a serving cell, or the random access resource information does not include a first cell index.

22. The method according to any one of claims 13 to 21, characterized in that, The method further includes: Receiving a random access preamble, where the random access preamble is a random access preamble sent by the terminal device according to first random access resource information, and the first random access resource information is the random access resource information corresponding to a first reference signal resource, and the first reference signal resource is the reference signal resource corresponding to the first QCL parameter determined by the terminal device.

23. The method according to claim 22, wherein The method further includes: Sending a physical downlink control channel PDCCH to the terminal device based on the first QCL parameter.

24. The method according to claim 23, characterized in that, The method further includes: Performing downlink transmission and / or uplink transmission with the terminal device based on the first QCL parameter.

25. A terminal device, characterized in that, including: A transceiver module, configured to receive first information, where the first information is used to configure a reference signal resource, and the reference signal resource is used to determine a first quasi-co-location QCL parameter; Receiving second information, where the second information is used to determine the random access resource information corresponding to the reference signal resource.

26. A network device, characterized in that, including: A transceiver module, configured to send a first message, where the first message is used to configure a reference signal resource, and the reference signal resource is used to determine first quasi co-location (QCL) parameters; Send a second message, where the second message is used to determine random access resource information corresponding to the reference signal resource.

27. A communication device, characterized in that, Comprising: One or more processors; Wherein, the communication device is used to execute the resource determination method according to any one of claims 1 to 12 or claims 13 to 24.

28. A storage medium storing instructions, characterized in that, When the instruction runs on the communication device, the communication device is caused to execute the resource determination method according to any one of claims 1 to 12 or claims 13 to 24.

29. A communication system, characterized in that, The communication system includes a terminal device and a network device. Wherein, the terminal device is configured to implement the resource determination method according to any one of claims 1 to 12, and the network device is configured to implement the resource determination method according to any one of claims 13 to 24.

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