Information transmission method and device and storage medium

Abstract

The embodiment of the invention provides an information transmission method and device and a storage medium, relates to the technical field of communication, and is used for improving the resource utilization rate of carrier resources in the data transmission process, the method is applied to a first node, and the method comprises the following steps: receiving first control information, the first control information is used for indicating an association relationship between a hybrid automatic repeat request (HARQ) entity and a physical shared channel set; a HARQ entity is associated with a set of physical shared channels based on the first control information.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular, to an information transmission method, apparatus, and storage medium. Background Art

[0002] In a communication system, different carriers are located in different hybrid automatic repeat request (HARQ) entities, and different HARQ entities cannot share data memory and perform cross-carrier data transmission, which causes the communication system to be unable to fully utilize carrier resources for data transmission, resulting in poor data transmission performance. Summary of the Invention

[0003] Embodiments of the present disclosure provide an information transmission method, apparatus, and storage medium for improving the resource utilization rate of carrier resources during data transmission.

[0004] To achieve the above object, the present disclosure adopts the following technical solutions:

[0005] In a first aspect, an information transmission method is provided, which is applied to a first node. The method includes:

[0006] Receiving first control information, where the first control information is used to indicate an association relationship between a hybrid automatic repeat request (HARQ) entity and a physical shared channel set;

[0007] Based on the first control information, associating the HARQ entity with the physical shared channel set.

[0008] In a second aspect, an information transmission method is provided, which is applied to a second node. The method includes:

[0009] Associating a HARQ entity with a physical shared channel set;

[0010] Sending first control information, where the first control information is used to indicate an association relationship between the HARQ entity and the physical shared channel set.

[0011] In a third aspect, a communication apparatus is provided, which is applied to a first node. The apparatus includes:

[0012] A receiving unit, configured to receive first control information, where the first control information is used to indicate an association relationship between a hybrid automatic repeat request (HARQ) entity and a physical shared channel set;

[0013] A processing unit, configured to associate the HARQ entity with the physical shared channel set based on the first control information.

[0014] In a fourth aspect, a communication apparatus is provided, which is applied to a second node. The apparatus includes:

[0015] A processing unit, configured to associate a HARQ entity with a set of physical shared channels;

[0016] A sending unit, configured to send first control information for indicating an association relationship between the HARQ entity and the set of physical shared channels.

[0017] In a fifth aspect, a communication device is provided, including: a processor and a memory; the memory is coupled to the processor; the memory is used to store instructions executable by the processor, and the memory stores instructions executable by the processor; when the processor is configured to execute the instructions, the communication device implements the method provided in any one of the first aspect or the second aspect as described above.

[0018] In a sixth aspect, a computer-readable storage medium is provided, where the computer-readable storage medium stores computer instructions, and when the computer instructions run on a computer, the computer executes the method provided in any one of the first aspect or the second aspect.

[0019] In a seventh aspect, a computer program product including computer instructions is provided, and when the computer instructions run on a computer, the computer executes the method provided in any one of the first aspect or the second aspect.

[0020] In the embodiments of the present disclosure, the first node associates the HARQ entity with the set of physical shared channels based on the first control information, so as to flexibly select a physical shared channel for data transmission under one HARQ entity, solve the problem of not supporting cross-carrier data transmission, improve the resource utilization rate of carrier resources during data transmission, and thus improve the data transmission performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the technical solutions of the present invention, and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solutions of the present invention, and do not constitute a limitation to the technical solutions of the present invention.

[0022] Figure 1 A data mapping schematic diagram of a 5G system provided for the prior art;

[0023] Figure 2 Another data mapping schematic diagram of a 5G system provided for the prior art;

[0024] Figure 3 Another data mapping schematic diagram of a 5G system provided for the prior art;

[0025] Figure 4 A schematic structural diagram of a communication system provided for the embodiments of the present disclosure;

[0026] Figure 5 Flow diagram of an information transmission method provided by an embodiment of the present disclosure;

[0027] Figure 6 Flow diagram of another information transmission method provided by an embodiment of the present disclosure;

[0028] Figure 7 Schematic diagram of the association relationship among a HARQ entity, a set of physical shared channels, and a set of transmission resources provided by an embodiment of the present disclosure;

[0029] Figure 8 Schematic diagram of another association relationship among a HARQ entity, a set of physical shared channels, and a set of transmission resources provided by an embodiment of the present disclosure;

[0030] Figure 9 Schematic diagram of another association relationship among a HARQ entity, a set of physical shared channels, and a set of transmission resources provided by an embodiment of the present disclosure;

[0031] Figure 10 Schematic diagram of another association relationship among a HARQ entity, a set of physical shared channels, and a set of transmission resources provided by an embodiment of the present disclosure;

[0032] Figure 11 Schematic diagram of another association relationship among a HARQ entity, a set of physical shared channels, and a set of transmission resources provided by an embodiment of the present disclosure;

[0033] Figure 12 Schematic diagram of a cross-carrier retransmission provided by an embodiment of the present disclosure;

[0034] Figure 13 Schematic diagram of another cross-carrier retransmission provided by an embodiment of the present disclosure;

[0035] Figure 14 Schematic diagram of another cross-carrier retransmission provided by an embodiment of the present disclosure;

[0036] Figure 15 Schematic diagram of the association between a carrier and a physical shared channel provided by an embodiment of the present disclosure;

[0037] Figure 16 Schematic diagram of the transmission resource association of multiplexing a next HARQ entity by multiple DRBs provided by an embodiment of the present disclosure;

[0038] Figure 17 Schematic diagram of the transmission resource association when multiple DRBs correspond to one HARQ entity provided by an embodiment of the present disclosure;

[0039] Figure 18Schematic diagram of transmission resource association in the case where one DRB corresponds to one HARQ entity provided by an embodiment of the present disclosure;

[0040] Figure 19 Schematic flowchart of another information transmission method provided by an embodiment of the present disclosure;

[0041] Figure 20 Schematic flowchart of another information transmission method provided by an embodiment of the present disclosure;

[0042] Figure 21 Schematic diagram of the composition of a communication device provided by an embodiment of the present disclosure;

[0043] Figure 22 Schematic diagram of the composition of another communication device provided by an embodiment of the present disclosure;

[0044] Figure 23 Schematic diagram of the structure of a communication device provided by an embodiment of the present disclosure. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

[0046] Unless otherwise required by the context, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular form "comprises" and the present participle form "comprising", are interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example", or "some examples", etc. are intended to indicate that the specific features, structures, materials, or characteristics related to the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms are not necessarily referring to the same embodiment or example. In addition, the described specific features, structures, materials, or characteristics can be included in any one or more embodiments or examples in any appropriate manner.

[0047] The terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0048] In the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0049] In the embodiments of the present disclosure, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present disclosure should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0050] In addition, the use of "based on" implies openness and inclusiveness, because a process, step, calculation or other action "based on" one or more of the said conditions or values may, in practice, be based on additional conditions or values beyond the said ones.

[0051] With the development of wireless communication technologies, wireless communication services have become increasingly rich. In addition to the three classic scenarios of the current fifth-generation mobile networks (5G), namely enhanced mobile broadband (eMBB), ultra-reliable and low latency communications (uRLLC), and massive machine type communication (mMTC), there will also be various services in the future, such as immersive cloud extended reality (XR), multi-dimensional holography, autonomous driving, and industrial Internet services. The demand for extreme future service experiences places higher requirements on the network. In particular, scenarios such as XR and holographic communication need to simultaneously meet the requirements of high throughput, low latency, and high reliability.

[0052] In the current 5G system, the medium access control (MAC) layer is responsible for scheduling and resource allocation, and uses the HARQ mechanism for packet transmission and reliability assurance. The MAC entity includes a HARQ entity. Each HARQ entity corresponds to a serving cell, and a component carrier (CC) is bound to only one HARQ entity. Each HARQ entity manages multiple parallel HARQ processes, and data from different HARQ entities and different HARQ processes cannot be merged. The transport block (TB) is the basic unit of HARQ transmission in the physical layer. Without spatial multiplexing, one HARQ process corresponds to one TB. With spatial multiplexing, one HARQ process corresponds to one or more TBs. In the physical layer, the physical downlink shared channel (PDSCH) is used for downlink TB transmission, and the physical uplink shared channel (PUSCH) is used for uplink TB data transmission. For 5G single-carrier transmission, as Figure 1 shown, each carrier corresponds to one HARQ entity, and one PDSCH is used for downlink data transmission and one PUSCH is used for uplink data transmission. For carrier aggregation (CA) transmission, multiple component carriers belong to different cells respectively. Each CC corresponds to one HARQ entity, and one HARQ entity corresponds to one PDSCH1 and one PUSCH1. There are multiple cells and multiple HARQ entities in CA. As Figure 2 shown, under CA, different CCs correspond to different HARQ entities, and each HARQ entity only manages its own HARQ buffer and the scheduling of one CC.

[0053] To improve uplink performance, 5G also adopts the supplementary uplink (SUL) method. For SUL transmission, there is one serving cell and multiple HARQ entities. Each serving cell has one downlink carrier (corresponding to one HARQ entity) and multiple uplink carriers (each uplink carrier corresponds to 1 HARQ entity, and multiple uplink carriers correspond to multiple HARQ entities), and they correspond to 1 PDSCH and multiple PUSCHs respectively, as Figure 3As shown in the figure, SUL ensures the uplink coverage of the user equipment (UE) by providing a supplementary uplink (generally in the low frequency band). The UE can dynamically select the transmission link between the normal UL link and the SUL link. However, at the same time, the UE can only select one of them for transmission and cannot send uplink data on both uplink links simultaneously. The downlink (DL), UL, and SUL belong to the same cell. Similarly, 5G also supports the supplementary downlink (SDL) to improve downlink performance. The SDL has one serving cell, multiple downlink carriers (corresponding to multiple HARQ entities), and one uplink carrier (corresponding to one HARQ entity), and respectively corresponds to multiple PDSCHs and one PUSCH.

[0054] Due to multipath effects, path loss, channel fading, interference, etc. in the wireless environment, the TB data may be lost or corrupted during transmission. To improve the reliability of data while ensuring the data transmission efficiency, the MAC layer uses the HARQ mechanism with fast retransmission. In the HARQ mechanism, the HARQ process is responsible for sending the TB data through the physical layer. Each TB is assigned an available HARQ process, and each HARQ process has an independent HARQ buffer at the receiving end. Through HARQ with soft combining, the received error packets are saved in a HARQ buffer and merged with the retransmitted packets received subsequently, so as to obtain a more reliable packet. If the merged packet fails to be decoded, a retransmission and re-merging will be requested. According to whether the retransmitted bit information is the same as the original transmission (which can also be called the initial transmission, the first transmission), HARQ with soft combining is divided into two types of retransmission methods: chase combining and incremental redundancy (IR). In chase combining, the retransmitted bit information is the same as the original transmission, and in IR, the retransmitted bit information can be different from the original transmission. In IR, multiple sets of coded bits are generated, and each set of coded bits transmitted each time becomes a redundancy version (RV). Through multiple retransmissions and soft combining of the received data, the probability of successful TB decoding is improved.

[0055] In 5G, each HARQ entity maintains its own HARQ buffer. Different HARQ entities do not share the HARQ buffer, and the HARQ buffers of different HARQ entities cannot directly access each other. Whether it is CA, SUL or SDL, as long as different HARQ entities are used, soft combination of HARQ information across carriers cannot be performed, which makes cross-carrier retransmission very difficult. For example, if a UE has two carriers, a high-frequency carrier and a low-frequency carrier, the data transmitted on the high-frequency carrier can only be retransmitted on the high-frequency carrier after a failure. Even if the low-frequency carrier is idle, the data cannot be quickly transferred to the low-frequency carrier for retransmission. Due to the low success rate of high-frequency retransmission and relatively large transmission delay, the data transmission performance is not high.

[0056] In summary, the related technologies have the problem of not being able to make full use of carrier resources for efficient data transmission, resulting in poor data transmission performance. How to improve the resource utilization rate of carrier resources in the process of data transmission is an urgent problem to be solved.

[0057] Based on this, the embodiments of the present disclosure provide an information transmission method, apparatus and storage medium. The first node associates the HARQ entity with the set of physical shared channels based on the first control information, so as to flexibly select a physical shared channel for data transmission under one HARQ entity, solve the problem of not supporting cross-carrier data transmission, improve the resource utilization rate of carrier resources in the process of data transmission, and thus improve the data transmission performance.

[0058] The solutions of the embodiments of the present disclosure will be described below with reference to the accompanying drawings.

[0059] The technical solutions provided by the embodiments of the present disclosure can be applied to various mobile communication networks. For example, the NR mobile communication network adopting 5G, future mobile communication networks (such as 6G wireless communication systems) or various communication fusion systems, etc. The embodiments of the present disclosure do not limit this.

[0060] Figure 4 The following shows a schematic structural diagram of a communication system provided by an embodiment of the present disclosure. As Figure 4 shown, the communication system includes but is not limited to a first node 110 and a second node 120. Among them. Wireless signals can be sent, received and related interactions can be carried out between the first node 110 and the second node 120.

[0061] In a wireless communication scenario, the first node 110 communicates with the second node 120 via a wireless channel. For example, the first node 110 is a terminal, and the second node 120 is a base station, and communication between the terminal and the base station is carried out via a wireless channel. Another example is that the first node 110 is a terminal, and the second node 120 is a wireless router, and communication between the wireless router and the terminal is carried out via a wireless channel. Another example is that the first node 110 is a first base station, and the second node 120 is a second base station, and communication between the first base station and the second base station is carried out via a wireless channel. Another example is that the first node 110 is a first terminal, and the second node 120 is a second terminal, and communication between the first terminal and the second terminal is carried out via a wireless channel. Another example is that the first node 110 is a repeater, and the second node 120 is a base station, and communication between the base station and the repeater is carried out via a wireless channel. Another example is that the first node 110 is a terminal, and the second node 120 is a repeater, and communication between the repeater and the terminal is carried out via a wireless channel. Another example is that the first node 110 is a first repeater, and the second node 120 is a second repeater, and communication between the first repeater and the second repeater is carried out via a wireless channel. Another example is that the first node 110 is a base station, and the second node 120 is a satellite, and communication between the satellite and the base station is carried out via a wireless channel. Another example is that the first node 110 is a satellite, and the second node 120 is a base station, and communication between the base station and the satellite is carried out via a wireless channel. Another example is that the first node 110 is a terminal, and the second node 120 is a satellite, and communication between the satellite and the terminal is carried out via a wireless channel. Another example is that the first node 110 is a satellite, and the second node 120 is a terminal, and communication between the terminal and the satellite is carried out via a wireless channel. Another example is that the first node 110 is a ground device, and the second node 120 is an aircraft, and communication between the aircraft and the ground device is carried out via a wireless channel. Another example is that the first node 110 is a first aircraft, and the second node 120 is a second aircraft, and communication between the first aircraft and the second aircraft is carried out via a wireless channel.

[0062] In the present disclosure, the "first" node, "second" node, "first" method, "second" method, "first" matrix, "second" matrix, "first" part, "second" part, unless otherwise specified, are only used for descriptive distinction and do not represent front-back or sequence order.

[0063] In the embodiments of the present disclosure, the first node and the second node may also have other names. For example, the first node may also be referred to as the first communication node, and the second node may also be referred to as the second communication node, etc. The embodiments of the present disclosure do not limit this.

[0064] In some embodiments, the above base station may be any one of an evolved Node B (eNB), a next-generation Node B (gNB), a transmission receive point (TRP), a transmission point (TP), and some other access node. According to the size of the service coverage area provided, the base station can be further divided into a macro base station for providing a macro cell, a pico base station for providing a picocell, and a femto base station for providing a femto cell. With the continuous evolution of wireless communication technologies, future base stations may also adopt other names.

[0065] The above terminal may be a device with wireless transceiver functions, such as a mobile phone, a tablet computer, a wearable device, a vehicle-mounted device, an augmented reality (AR) / virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), etc. The specific types of the terminal are not limited in the embodiments of the present disclosure.

[0066] It should be understood that Figure 4 is an exemplary structural diagram, Figure 4 the number of devices included in the shown communication system is not limited. For example, the number of the first node and the second node is not limited. And, in addition to Figure 4 the devices shown, Figure 4 the shown communication system may further include other devices, which are not limited herein.

[0067] Next, as Figure 5 shown, the embodiments of the present disclosure provide an information transmission method, which is applied to a first node. The first node may be Figure 4 the first node 110 shown in

[0068] S101. Receive first control information.

[0069] In some embodiments, in order to improve the resource utilization rate of carrier resources during data transmission, after configuring the first control information, the second node may send the first control information to the first node. Correspondingly, the first node receives the first control information sent by the second node. The first control information is used to indicate the association relationship between a HARQ entity and a set of physical shared channels. Wherein, the second node may be the aboveFigure 4 The second node 120 shown in , for ease of description, hereinafter, the first node is uniformly used as the terminal and the second node is used as the base station to exemplify an information transmission method provided by the embodiments of the present disclosure.

[0070] In some embodiments, the first control information is used to indicate the association relationship between a HARQ entity and a set of physical shared channels, specifically, it can be used to indicate the association relationship between a HARQ entity of the first node and a set of physical shared channels. The set of physical shared channels can also have other names, for example, a physical data channel list.

[0071] In some embodiments, the set of physical shared channels includes at least one of the following: multiple PDSCHs, multiple PUSCHs.

[0072] In some embodiments, all the physical shared channels in the set of physical shared channels associated with the HARQ entity can share the HARQ buffer of the HARQ entity.

[0073] In some embodiments, the new transmission and retransmission of the same data packet under the HARQ entity are respectively carried on different physical shared channels in the set of physical shared channels associated with the HARQ entity for transmission. Among them, new transmission can also have other names, for example, retransmission.

[0074] In some embodiments, the first control information includes at least one of the following: HARQ entity identifier, PDSCH identifier, PUSCH identifier, carrier identifier, indication corresponding to the PDSCH identifier and the carrier identifier, indication corresponding to the PUSCH identifier and the carrier identifier, rule corresponding to the PDSCH identifier and the carrier identifier, rule corresponding to the PUSCH identifier and the carrier identifier.

[0075] In some embodiments, the first control information includes at least one of the following: Radio Resource Control (RRC) message, downlink control information (DCI). Among them, the RRC message can be at least one of the following: RRC connection establishment message, RRC reconfiguration message, RRC forwarding message.

[0076] In some embodiments, the HARQ entity is any one of the following: a HARQ entity corresponding to one data radio bearer (DRB), a HARQ entity corresponding to multiple DRBs, a HARQ entity corresponding to the multiplexing of multiple DRBs at the MAC layer.

[0077] S102. Based on the first control information, associate the HARQ entity with the set of physical shared channels.

[0078] In some embodiments, after receiving the first control information, the first node may, based on the first control information, associate one HARQ entity of the first node with multiple physical shared channels in the physical shared channel set, that is, establish an association relationship between one HARQ entity of the first node and multiple physical shared channels in the physical shared channel set.

[0079] As an example, taking the first control information as an RRC message, the first node associates one HARQ entity of the first node with the physical shared channel set based on the RRC message. Taking the first control information as specifically the RRC reconfiguration message in the RRC message as an example, the RRC reconfiguration message indicates the specific association relationship between one HARQ entity of the first node and the physical shared channel set, and the first node may associate the HARQ entity with the physical shared channel set based on the specific association relationship between the HARQ entity and the physical shared channel set. For example, the RRC reconfiguration message includes indication information of two pairs of physical shared channels (PDSCH1, PUSCH1) (PDSCH2, PUSCH2) associated with HARQ entity 1. Another example is that, for example, the RRC reconfiguration message includes indication information of one pair of conventional transmission links (PDSCH1, PUSCH1) and one supplementary transmission link (PUSCH2) associated with HARQ entity 1.

[0080] As another example, taking the first control information as an RRC message, the RRC message (such as the RRC connection establishment message) may enable the first node to associate and dissociate the HARQ entity with the physical shared channel set. The first node may associate one HARQ entity of the first node with the physical shared channel set by receiving the RRC message. The first node may dissociate the association relationship between one HARQ entity of the first node and the physical shared channel set by receiving the RRC message.

[0081] As another example, taking the first control information as DCI, DCI can enable the first node to dynamically associate and dissociate the HARQ entity with the physical shared channel set in real time. The first node may associate one HARQ entity of the first node with the physical shared channel set by receiving DCI. The first node may dissociate the association relationship between one HARQ entity of the first node and the physical shared channel set by receiving DCI.

[0082] Based on Figure 5In the illustrated embodiment, the first node associates the HARQ entity with the set of physical shared channels based on the first control information, so as to flexibly select a physical shared channel for data transmission under one HARQ entity, solve the problem of not supporting cross-carrier data transmission, improve the resource utilization rate of carrier resources during data transmission, and thus improve the data transmission performance.

[0083] In some embodiments, as Figure 6 illustrated, the method may further include the following steps:

[0084] S201. Receive second control information.

[0085] The second control information is used to indicate the correspondence between the physical shared channels in the set of physical shared channels and the transmission resources in the set of transmission resources.

[0086] In some embodiments, the set of transmission resources includes multiple transmission resources, and the transmission resources include at least one of the following: carrier, bandwidth part (BWP), cell, beam, transmit / receive point (TRP). The set of transmission resources may also have other names, for example, service resource list.

[0087] In some embodiments, the set of transmission resources includes at least one of the following: set of carriers, set of BWPs, set of cells, set of beams, set of TRPs, where the number of carriers included in the set of carriers is greater than 1, the set of BWPs includes multiple BWPs located on different carriers, and the set of beams includes multiple spatial beams belonging to different carriers.

[0088] In some embodiments, the second control information includes indication information of physical shared channels to transmission resources. The second control information includes at least one of the following: HARQ entity identifier, PDSCH identifier, PUSCH identifier, transmission resource identifier, indication corresponding to the PDSCH identifier and the transmission resource identifier, indication corresponding to the PUSCH identifier and the transmission resource identifier, rule corresponding to the PDSCH identifier and the transmission resource identifier, rule corresponding to the PUSCH identifier and the transmission resource identifier.

[0089] In some embodiments, the second control information includes at least one of the following: RRC message, DCI. The RRC message may be at least one of the following: RRC connection establishment message, RRC reconfiguration message, RRC forwarding message.

[0090] As another example, taking the second control information as an RRC message, the RRC message enables the first node to dynamically associate and disassociate the physical shared channel set with the transmission resource set in real time. The first node can associate the physical shared channel set of the first node with the transmission resource set by receiving the RRC message. The first node can disassociate the association relationship between the physical shared channel set of the first node and the transmission resource set by receiving the RRC message.

[0091] As another example, taking the second control information as DCI, the DCI enables the first node to dynamically associate and disassociate the physical shared channel set with the transmission resource set in real time. The first node can associate the physical shared channel set of the first node with the transmission resource set by receiving the DCI. The first node can disassociate the association relationship between the physical shared channel set of the first node and the transmission resource set by receiving the DCI.

[0092] S202. Determine the transmission resource set corresponding to the physical shared channel set based on the second control information.

[0093] In some embodiments, when the first node associates the HARQ entity with the physical shared channel set based on the first control information, after receiving the second control information, the first node can determine the transmission resource set corresponding to the physical shared channel set based on the second control information, that is, determine the association relationship between the physical shared channel set and the transmission resource set.

[0094] In some embodiments, when the first node determines the transmission resource set corresponding to the physical shared channel set based on the second control information, after receiving the first control information, the first node can determine the association between the HARQ entity and the physical shared channel set based on the first control information.

[0095] In some embodiments, when the first node associates the HARQ entity with the physical shared channel set based on the first control information and determines the transmission resource set corresponding to the physical shared channel set based on the second control information, the first node associates the HARQ entity with the transmission resource.

[0096] In some embodiments, the first control information and the second control information are two independent control signaling messages, and the first node receives the first control information and the second control information respectively. For example, the first control information and the second control information are two RRC messages respectively. Another example is that the first control information and the second control information are two DCI messages respectively. Another example is that the first control information is an RRC message and the second control information is DCI. Another example is that the first control information is DCI and the second control information is an RRC message.

[0097] In some embodiments, the first control information and the second control information correspond to a control signaling message, and the first node receives a control signaling message including the first control information and the second control information. For example, the first control information and the second control information belong to an RRC message. For another example, the first control information and the second control information belong to a DCI message.

[0098] It should be understood that after the first node determines the transmission resource set corresponding to the physical shared channel set, it means that the physical shared channels in the physical shared set can all use the transmission resources included in the transmission resource set. For example, the transmission resource set includes carrier resources. After determining the transmission resource set corresponding to the physical shared channel set, the first node can know on which carrier resources each physical shared channel is carried, so as to flexibly select physical shared channels and flexibly select transmission resources for data transmission under a HARQ entity, improving the resource utilization rate of carrier resources in the data transmission process, and thus improving the data transmission performance.

[0099] Taking the physical shared channel set including m PDSCHs and n PUSCHs, and the transmission resource set including k carriers as an example, that is to say, in the embodiments of the present disclosure, m PDSCHs, n PUSCHs under a HARQ entity correspond to k carriers. Among them, both m and n can be integers greater than or equal to 0, and m and n are not both 0 at the same time, and k is a positive integer. It should be understood that when the first node associates the HARQ entity with the physical shared channel set and associates the HARQ entity with the transmission resource set, the first node can know which carrier among the k carriers each physical shared channel in the m PDSCHs and n PUSCHs under a HARQ entity uses. As Figure 7 shown, it is a schematic diagram of the association relationship between a HARQ entity, a physical shared channel set, and a transmission resource set provided by the embodiments of the present disclosure. Refer to Figure 7 , taking the physical shared channel set including PDSCH1 - PDSCH m and PUSCH1 - PUSCH n , the carrier is a component carrier (CC), and the transmission resource set includes CC1 - CC k as an example, the association relationship among the HARQ entity, the physical shared channel set, and the transmission resource set can be that HARQ entity 1 is associated with PDSCH1 - PDSCH m and PUSCH1 - PUSCH n , and PDSCH1 - PDSCH m and PUSCH1 - PUSCH n are associated with CC1 - CC k .

[0100] The following uses examples to illustrate the association relationship among a HARQ entity, a set of physical shared channels, and a set of transmission resources. Exemplarily, taking the set of physical shared channels including m PDSCHs and n PUSCHs and the transmission resource being a carrier as an example, the HARQ entity is associated with the set of physical shared channels, that is, a HARQ entity is associated with m PDSCHs and n PUSCHs. The m PDSCHs can be transmitted using less than or equal to m different carriers respectively. The n PUSCHs are transmitted using less than or equal to n different carriers respectively. In some embodiments, the m PDSCHs can be transmitted using the same carrier or different carriers. The n PUSCHs can be transmitted using the same carrier or different carriers. In some embodiments, for each PDSCH and each PUSCH, they can be transmitted using the same carrier or different carriers. That is to say, by associating a HARQ entity with the physical shared channels and the set of transmission resources, a combination of corresponding relationships can be formed between a HARQ entity and any physical shared channel in the set of physical shared channels and any transmission resource in the set of transmission resources.

[0101] When m equals 0 and n is greater than 0, a downlink-only (DL only) data transmission is formed, that is, the HARQ entity is only associated with one or more PDSCH channels and not associated with PUSCH channels.

[0102] When m is greater than 0 and n equals 0, a UL only data transmission is formed, that is, the HARQ entity is only associated with one or more PUSCH channels and not associated with PDSCH channels.

[0103] When m equals 1 and n is greater than 1, it means that the HARQ entity is simultaneously associated with one PDSCH channel and multiple PUSCH channels. Exemplarily, as Figure 8 shown, it is a schematic diagram of another association relationship among a HARQ entity, a set of physical shared channels, and a set of transmission resources provided by an embodiment of the present disclosure. Refer to Figure 8 , when a physical shared channel corresponds to one carrier, this situation is similar to 5G SUL transmission, but the difference is that only one HARQ entity is used here.

[0104] When m is greater than 1 and n equals 1, it means that the HARQ entity is simultaneously associated with multiple PDSCH channels and one PUSCH channel. When a physical shared channel corresponds to one carrier, this situation is similar to 5G SDL transmission, but the difference is that only one HARQ entity is used here.

[0105] When m is greater than 1 and n is greater than 1, it means that the HARQ entity is simultaneously associated with multiple PDSCH channels and multiple PUSCH channels. Exemplarily, as Figure 9 shown, it is a schematic diagram of another association relationship between a HARQ entity, a physical shared channel set, and a transmission resource set provided by an embodiment of the present disclosure. Refer to Figure 9 , in the case where the HARQ entity is simultaneously associated with multiple PDSCH channels and multiple PUSCH channels, this situation is similar to 5G CA transmission, but the difference is that only one HARQ entity is used here.

[0106] It should be understood that in the case where a HARQ entity is associated with a physical shared channel set, the flexibility of data transmission can be improved.

[0107] As an example, in the case where a HARQ entity is associated with a physical shared channel set and the transmission resource set corresponding to the physical shared channel set is determined, cross-carrier retransmission of the same TB data can be performed. When the transmission of TB data fails on one carrier, if the TB data is retransmitted on the same carrier, the retransmission success rate may be relatively low. Thus, the retransmission of the TB data with failed transmission can be performed on another carrier of the same HARQ entity, and at the receiving end, a HARQ buffer can be used and information soft combining can be performed to improve the decoding success rate.

[0108] As another example, in the case where a HARQ entity is associated with a physical shared channel set and the transmission resource set corresponding to the physical shared channel set is determined, since the physical shared channel set uses the same HARQ entity, flexible splitting of a data stream at the physical layer can be supported. For example, different TB data of the same data stream can be transmitted on different physical shared channels, and different TB data of the same data stream can be transmitted on different carriers.

[0109] In some embodiments, the second control information includes at least one of the following: RRC message, DCI. Taking the second control information as an RRC message (e.g., an RRC reconfiguration message) as an example, based on the second control information, the first node determines the transmission resource set corresponding to the physical shared channel set. It may be that the first node obtains the transmission resources corresponding to each physical shared channel in the physical shared channel set based on the RRC message. For example, both PDSCH1 and PDSCH1 correspond to carrier 1 (CC1), and both PDSCH2 and PDSCH2 correspond to carrier 2 (CC2). Taking the second control information as DCI as an example, based on the second control information, the first node determines the transmission resource set corresponding to the physical shared channel set. It may be that the first node makes the correspondence between the physical shared channels in the physical shared channel set and the transmission resources in the transmission resource set based on the DCI. It should be understood that DCI enables the first node to establish and release the correspondence relationship between the physical shared channel set and the transmission resource set in real time and dynamically.

[0110] In some embodiments, after the first node associates the HARQ entity with the physical shared channel set based on the first control information, or after the first node determines the transmission resource set corresponding to the physical shared channel set based on the second control information, the first node may associate the HARQ entity with the transmission resource set, that is, establish the association relationship between the HARQ entity and the transmission resource set.

[0111] As a possible example, for the first node to associate the HARQ entity with the physical shared channel set and to associate the HARQ entity with the transmission resource set, it may be that the MAC entity of the first node associates the HARQ entity with the physical shared channel set and associates the HARQ entity with the transmission resource set.

[0112] For example, taking the transmission resource as a carrier, assume that a HARQ entity is associated with two pairs of uplink and downlink physical shared channels (PDSCH1, PUSCH1) and (PDSCH2, PUSCH2), and (PDSCH1, PUSCH1) corresponds to carrier 1, (PDSCH2, PUSCH2) corresponds to carrier 2. Continuing to refer to the above Figure 9 , it can be seen that HARQ entity 1 can also correspond to carrier 1 (CC1) and carrier 2 (CC2), that is, HARQ entity 1 is also associated with CC1 and CC2.

[0113] Another example, taking the transmission resource as a cell, the transmission resource set includes multiple logical cells, then a HARQ entity can correspond to multiple logical cells, where the multiple logical cells can be multiple logical cells corresponding to different carriers. Exemplarily, such as Figure 10As shown in the figure, it is a schematic diagram of the association relationship between another HARQ entity, a set of physical shared channels, and a set of transmission resources provided by an embodiment of the present disclosure. Refer to Figure 10 , the HARQ entity 1 can be associated with (PDSCH1, PUSCH1) and (PDSCH2, PUSCH2). (PDSCH1, PUSCH1) is associated with cell 1 (Cell1), and (PDSCH2, PUSCH2) is associated with cell 2 (Cell2). Then, the HARQ entity 1 can be associated with Cell1 and Cell2.

[0114] For another example, taking the transmission resource as a BWP, the set of transmission resources includes multiple BWPs. Then, one HARQ entity can correspond to multiple BWPs, where the multiple BWPs can be located on different carriers. Exemplarily, as Figure 11 As shown in the figure, it is a schematic diagram of the association relationship between another HARQ entity, a set of physical shared channels, and a set of transmission resources provided by an embodiment of the present disclosure. Refer to Figure 11 , the HARQ entity 1 can be associated with (PDSCH1, PUSCH1) and (PDSCH2, PUSCH2). (PDSCH1, PUSCH1) is associated with BWP1, and (PDSCH2, PUSCH2) is associated with BWP2. Then, the HARQ entity 1 can be associated with BWP1 and BWP2. Among them, BWP1 and BWP2 can be located on different carriers. In some embodiments, BWP1 and BWP2 are two active BWPs corresponding to the HARQ entity 1. It should be understood that since there are two active BWPs under one HARQ entity, various data transmission methods such as simultaneous transmission of the same data packet on different BWPs, simultaneous transmission of different data packets of the same data stream on different BWPs, new transmission of the same data packet on one BWP and retransmission on another BWP can be supported.

[0115] In some embodiments, when the first node associates the HARQ entity with the set of physical shared channels and associates the HARQ entity with the set of transmission resources, all the transmission resources in the set of transmission resources associated with the HARQ entity can be used to transmit the data in the HARQ buffer of the HARQ entity.

[0116] In some embodiments, when the first node associates the HARQ entity with the set of physical shared channels and associates the HARQ entity with the set of transmission resources, the new transmission and retransmission of the same data packet under the HARQ entity are respectively carried on different transmission resources in the set of transmission resources associated with the HARQ entity for transmission.

[0117] It should be understood that high-frequency carriers can be used for large-throughput transmission with a large bandwidth. However, high-frequency carriers also have the disadvantages of short propagation distance, susceptibility to interference, and easy blockage, resulting in a low success rate of retransmission on high-frequency carriers. Low-frequency carriers have a large coverage area, strong penetration, and strong anti-interference ability, resulting in a high success rate of data transmission. However, low-frequency carriers have a small bandwidth and cannot support high-speed data transmission. If the new transmission of data packets is placed on high-frequency carriers and the retransmission of data packets is placed on low-frequency carriers, high-speed data transmission and retransmission success rate can be taken into account. It can be seen that this method is beneficial for scenarios with large throughput and high reliability.

[0118] As an example, taking the data packet as the TB data, as Figure 12 shown, it is a schematic diagram of cross-carrier retransmission provided by an embodiment of the present disclosure. Refer to Figure 12 , under the same HARQ entity, PDSCH1 uses a high-frequency carrier and PDSCH2 uses a low-frequency carrier. When the TB data transmission on PDSCH1 fails on the high-frequency carrier, the retransmission of the failed TB data can be placed on PDSCH2 to use the low-frequency carrier for transmission. Since PDSCH1 and PDSCH2 use the same HARQ entity, the data transmitted on the two channels at the receiving end can be soft combined for information to improve the decoding success rate. Moreover, since PDSCH1 and PDSCH2 use the same HARQ entity, the HARQ buffers corresponding to PDSCH1 and PDSCH2 are also the same. The retransmission of the failed TB data can be the transmission of the same RV version or different RV versions of the TB data. That is to say, since PDSCH1 and PDSCH2 use the same HARQ entity, multiple physical downlink shared channels can share the downlink HARQ buffer for bit soft combination.

[0119] In some embodiments, RRC messages can be used to configure the association relationship between the HARQ entity and the set of physical shared channels, as well as the corresponding relationship between each physical shared channel in the set of physical shared channels and the carrier. For example, RRC messages can be used to configure the association relationship between HARQ entity 1 and PDSCH1 and PDSCH2, as well as the corresponding relationship between PDSCH1 using a high-frequency carrier and PDSCH2 using a low-frequency carrier.

[0120] As another example, for each physical shared channel in the set of physical shared channels associated with the HARQ entity, the physical shared channel can use high-frequency and low-frequency carriers for data transmission at different time slots. For example, taking the physical shared channel as PDSCH1 and the data packet as the TB data, as Figure 13 shown, it is another schematic diagram of cross-carrier retransmission provided by an embodiment of the present disclosure. Refer to Figure 13, for PDSCH1 associated with HARQ entity 1, PDSCH1 can use high-frequency carrier and low-frequency carrier respectively in different time slots for data transmission. When a TB transmission fails for PDSCH1 using the high-frequency carrier on a HARQ process, the failed TB can be retransmitted using the low-frequency carrier on the HARQ process corresponding to the retransmission of PDSCH1. Or, as Figure 14 shown, it is another cross-carrier retransmission schematic diagram provided by an embodiment of the present disclosure. Refer to Figure 14 , for PDSCH1 associated with HARQ entity 1, in the case where a TB transmission fails when using CC1, multiple RV versions of the failed TB can be retransmitted on multiple CCs. For example, the same RV version is transmitted on CC2 and CC3, or different RV versions are transmitted on CC2 and CC3.

[0121] In some embodiments, in order to improve the transmission performance of uplink transmission, the first node can perform cross-carrier retransmission of uplink transmission. Among them, the cross-carrier retransmission of uplink transmission by the first node can also use the corresponding relationship between the physical shared channel and the transmission resource shown above Figures 12 to 14 for cross-carrier retransmission. It should be understood that by placing the new transmission of the data packet on the high-frequency carrier, the sufficient bandwidth resources of the high-frequency carrier can be utilized for high-speed transmission of the data packet; while placing the retransmission of the data packet on the low-frequency carrier can utilize the advantages of small path loss and strong anti-interference ability of the low-frequency carrier to improve the reliability of data transmission.

[0122] In some embodiments, in the case where the first node associates the HARQ entity with the physical shared channel set and associates the HARQ entity with the transmission resource set, an information transmission method provided by an embodiment of the present disclosure not only supports the transmission of multiple physical shared channels under one HARQ entity on different transmission resources, but also supports the transmission of multiple physical shared channels under one HARQ entity on the same transmission resource. For example, taking the physical shared channel set including 2 PDSCHs (PDSCH1 and PDSCH2) and the transmission resource set including 1 carrier (CC1) as an example, as Figure 15 shown, it is a schematic diagram of the association between the carrier and the physical shared channel provided by an embodiment of the present disclosure. Refer to Figure 15, it indicates that 2 PDSCHs under one HARQ entity 1 are both transmitted on one carrier. That is to say, the first node can simultaneously perform data transmission on two downlink links. For large-throughput services such as XR, using large bandwidth resources on a certain carrier to simultaneously transmit multiple physical shared channels can improve the data transmission rate. Another example is that taking the physical shared channel set including 2 PUSCHs and the transmission resource set including 1 carrier as an example, it indicates that 2 PUSCHs under one HARQ entity are both transmitted on one carrier, that is, the first node can simultaneously perform data transmission on two uplink links.

[0123] In some embodiments, when the first node associates the HARQ entity with the physical shared channel set and associates the HARQ entity with the transmission resource set, the uplink data and downlink data under the HARQ entity are respectively transmitted using different transmission resources in the transmission resource set associated with the HARQ entity; or, the uplink data and downlink data under the HARQ entity are respectively transmitted using the same transmission resources in the transmission resource set associated with the HARQ entity. Taking the uplink data and downlink data under the HARQ entity being respectively transmitted using different transmission resources in the transmission resource set associated with the HARQ entity as an example, as an example, the identifier of the transmission resource used by the uplink data is different from the identifier of the transmission resource used by the downlink data; and / or, the number of transmission resources used by the uplink data is different from the number of transmission resources used by the downlink data. For example, taking the transmission resource as a carrier, for the uplink data, one HARQ entity can use 4 carriers for transmission, and for the downlink data, one HARQ entity can use 1 carrier for transmission.

[0124] In some embodiments, different HARQs under one HARQ entity use different physical shared channels or different transmission resources. For example, among multiple HARQ processes of HARQ entity 1, some HARQ processes use PDSCH1, and some HARQ processes use PDSCH2. For example, among multiple HARQ processes of HARQ entity 1, some HARQ processes use carrier 1 and carrier 2, and some HARQ processes use carrier 2 and carrier 3. For example, among multiple HARQ processes of HARQ entity 1, some HARQ processes use BWP1 and BWP2, and some HARQ processes use BWP2 and BWP3. For example, among multiple HARQ processes of HARQ entity 1, some HARQ processes use beam 1, and some HARQ processes use beam 2. For example, among multiple HARQ processes of HARQ entity 1, some HARQ processes are for data transmission of cell 1, and some HARQ processes are for data transmission of cell 2. That is to say, for the same HARQ entity, the same data packet can be initially transmitted and retransmitted on different transmission resources, and support soft combining of the information after initial transmission, retransmission, and decoding of the same HARQ buffer.

[0125] In some embodiments, different transmission resources are used for the DRB corresponding to the HARQ entity. In 5G, the MAC layer multiplexes data from multiple DRBs together and provides it to one HARQ entity. In this way, it is impossible to distinguish the data of different DRBs at the physical layer, making it difficult to guarantee service differentiation at the physical layer. In the embodiments of the present disclosure, it is proposed to correspond one DRB to one HARQ entity, and through the association between the HARQ entity and the set of physical shared channels and the correspondence between the set of physical shared channels and the set of transmission resources, cross-carrier transmission of the data of one DRB is achieved. For example, for low-speed data services, multiple DRBs are corresponded to one HARQ entity; for high-speed data services, one DRB is corresponded to one HARQ entity. Regardless of which correspondence method between the DRB and the HARQ entity is used, the association between the HARQ entity and the set of physical shared channels and the correspondence between the set of physical shared channels and the set of transmission resources can be used to perform data transmission across transmission resources (such as cross-carrier retransmission). Taking the transmission resource as a carrier as an example, Figure 16 The schematic diagram of the transmission resource association of one HARQ entity under the multiplexing of multiple DRBs is given, Figure 17 The schematic diagram of the transmission resource association under the correspondence of multiple DRBs to one HARQ entity is given. Figure 18 The schematic diagram of the transmission resource association under the correspondence of one DRB to one HARQ entity is given.

[0126] Based on Figure 6 the embodiments shown, after the first node determines the set of transmission resources corresponding to the set of physical shared channels, it means that the physical shared channels in the physical shared set can all use the transmission resources included in the set of transmission resources. The first node can know on which transmission resources each physical shared channel is carried, so as to flexibly select physical shared channels and flexibly select transmission resources for data transmission under one HARQ entity, improving the resource utilization rate of carrier resources during the data transmission process, and thus improving the data transmission performance.

[0127] In some embodiments, as Figure 19 shown, the embodiments of the present disclosure further provide an information transmission method, which is applied to the second node. The second node can be the second node 120 shown above Figure 4 , and this method may include the following steps:

[0128] S301. Associate one HARQ entity with a set of physical shared channels.

[0129] In some embodiments, in order to improve the resource utilization rate of carrier resources during data transmission, the second node may associate a HARQ entity with a set of physical shared channels. Among them, the second node associating a HARQ entity with a set of physical shared channels may be that the second node associates a HARQ entity of the first node with a set of physical shared channels, that is, the second node establishes an association relationship between a HARQ entity of the first node and a set of physical shared channels. For the description of the HARQ entity and a set of physical shared channels, reference may be made to the corresponding description in the embodiment shown in Figure 5 as described above, which will not be elaborated here.

[0130] S302. Send the first control information.

[0131] Among them, the first control information is used to indicate the association relationship between a HARQ entity and a set of physical shared channels.

[0132] In some embodiments, the first control information includes at least one of the following: RRC message, DCI. Among them, the RRC message may be at least one of the following: RRC establishment message, RRC reconfiguration message, RRC forwarding message.

[0133] For the description of the first control information, reference may be made to the corresponding description in the embodiment shown in Figure 5 as described above, which will not be elaborated here.

[0134] It should be understood that after the second node associates a HARQ entity with a set of physical shared channels, it sends the first control information to the first node, so that the first node can associate the HARQ entity with the set of physical shared channels based on the first control information, so as to flexibly select a physical shared channel for data transmission under a HARQ entity, solve the problem of not supporting cross-carrier data transmission, improve the resource utilization rate of carrier resources during data transmission, and thus improve the data transmission performance.

[0135] In some embodiments, as Figure 20 shown, the method may further include the following steps:

[0136] S401. Determine a set of transmission resources corresponding to the set of physical shared channels.

[0137] In some embodiments, when the second node associates a HARQ entity with a set of physical shared channels, the second node may determine a set of transmission resources corresponding to the set of physical shared channels. For the description of the set of transmission resources, reference may be made to the corresponding description in the embodiment shown in Figure 6 as described above, which will not be elaborated here.

[0138] S402. Send the second control information.

[0139] Among them, the second control information is used to indicate the correspondence between the physical shared channels in the physical shared channel set and the transmission resources in the transmission resource set.

[0140] In some embodiments, the second control information includes at least one of the following: RRC message, DCI. Among them, the RRC message may be at least one of the following: RRC establishment message, RRC reconfiguration message, RRC forwarding message.

[0141] For the description of the second control information, reference may be made to the corresponding description in the embodiments shown above Figure 6 and will not be elaborated herein.

[0142] It should be understood that after the second node determines the transmission resource set corresponding to the physical shared channel set, it sends the second control information to the first node, so that the first node can determine the transmission resource set corresponding to the physical shared channel set based on the second control information. Furthermore, the first node can know on which transmission resources each physical shared channel is carried, so as to flexibly select physical shared channels and flexibly select transmission resources for data transmission under one HARQ entity, improving the resource utilization rate of carrier resources during data transmission, and thus improving data transmission performance.

[0143] In some embodiments, after the second node associates one HARQ entity with a physical shared channel set, or after the second node determines the transmission resource set corresponding to the physical shared channel set, the second node may also associate the HARQ entity with the transmission resource set, that is, associate one HARQ entity of the first node with the transmission resource set. In this way, it can make the first node and the second node have a consistent understanding of the transmission resource set associated with one HARQ entity of the first node, thus helping to improve the data transmission effect.

[0144] In some embodiments, the first control information and the second control information are two independent control signaling messages, and the second node sends the first control information and the second control information respectively. For example, the first control information and the second control information are two RRC messages respectively. Another example is that the first control information and the second control information are two DCI messages respectively. Still another example is that the first control information is an RRC message and the second control information is a DCI message. Still another example is that the first control information is a DCI message and the second control information is an RRC message.

[0145] In some embodiments, the first control information and the second control information correspond to one control signaling message, and the second node sends one control signaling message including the first control information and the second control information. For example, the first control information and the second control information belong to one RRC message. For example, the first control information and the second control information belong to one DCI message.

[0146] As an example, the second node associates one HARQ entity with a set of physical shared channels, and associates the HARQ entity with a set of transmission resources. It may be that the MAC entity of the second node associates one HARQ entity with a set of physical shared channels, and associates the HARQ entity with a set of transmission resources.

[0147] The above mainly introduces the solution provided by the present disclosure from the perspective of interactions between various nodes. It can be understood that in order to implement the above functions, each node, such as the first node or the second node, includes corresponding hardware structures and / or software modules for executing various functions. Those skilled in the art should easily realize that, combining the algorithm steps of each example described in the embodiments disclosed herein, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving the hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present disclosure.

[0148] Figure 21 The following shows a schematic diagram of the composition of a communication device provided by an embodiment of the present disclosure. As Figure 21 shown, the communication device 50 includes a receiving unit 501 and a processing unit 502.

[0149] The communication device 50 may be the above-mentioned first node or a chip in the first node. When the communication device 50 is used to implement the functions of the first node in the above embodiments, each unit is specifically used to implement the following functions.

[0150] The receiving unit 501 is configured to receive first control information, where the first control information is used to indicate the association relationship between a hybrid automatic repeat request (HARQ) entity and a set of physical shared channels;

[0151] The processing unit 502 associates the HARQ entity with the set of physical shared channels based on the first control information.

[0152] In some embodiments, the receiving unit 501 is configured to receive second control information, where the second control information is used to indicate the correspondence relationship between the physical shared channels in the set of physical shared channels and the transmission resources in the set of transmission resources;

[0153] A processing unit 502, configured to determine a set of transmission resources corresponding to a set of physical shared channels based on second control information.

[0154] In some embodiments, the processing unit 502 is further configured to associate a HARQ entity with the set of transmission resources.

[0155] In some embodiments, the set of physical shared channels includes at least one of the following: a plurality of physical downlink shared channels (PDSCHs), a plurality of physical uplink shared channels (PUSCHs).

[0156] In some embodiments, the set of transmission resources includes a plurality of transmission resources, and a transmission resource includes at least one of the following: a carrier, a partial bandwidth (BWP), a cell, a beam, a transmit / receive point (TRP).

[0157] In some embodiments, the set of transmission resources includes at least one of the following: a set of carriers, a set of BWPs, a set of cells, a set of beams, a set of TRPs, where the number of carriers included in the set of carriers is greater than 1, the set of BWPs includes a plurality of BWPs located on different carriers, and the set of beams includes a plurality of spatial beams belonging to different carriers.

[0158] In some embodiments, all physical shared channels in the set of physical shared channels associated with a HARQ entity can share the HARQ buffer of the HARQ entity.

[0159] In some embodiments, all transmission resources in the set of transmission resources associated with a HARQ entity can be used to transmit data in the HARQ buffer of the HARQ entity.

[0160] In some embodiments, the new transmission and retransmission of the same data packet under a HARQ entity are respectively carried and transmitted on different physical shared channels in the set of physical shared channels associated with the HARQ entity.

[0161] In some embodiments, the new transmission and retransmission of the same data packet under a HARQ entity respectively use different transmission resources in the set of transmission resources associated with the HARQ entity for transmission, or the uplink data and downlink data under a HARQ entity respectively use the same transmission resources in the set of transmission resources associated with the HARQ entity for transmission.

[0162] In some embodiments, the uplink data and downlink data under a HARQ entity respectively use different transmission resources in the set of transmission resources associated with the HARQ entity for transmission.

[0163] In some embodiments, the identifier of the transmission resource used for uplink data is different from the identifier of the transmission resource used for downlink data; and / or, the number of transmission resources used for uplink data is different from the number of transmission resources used for downlink data.

[0164] In some embodiments, the first control information includes at least one of the following: HARQ entity identifier, PDSCH identifier, PUSCH identifier, carrier identifier, indication corresponding to the PDSCH identifier and the carrier identifier, indication corresponding to the PUSCH identifier and the carrier identifier, rule corresponding to the PDSCH identifier and the carrier identifier, rule corresponding to the PUSCH identifier and the carrier identifier.

[0165] In some embodiments, the second control information includes at least one of the following: HARQ entity identifier, PDSCH identifier, PUSCH identifier, transmission resource identifier, indication corresponding to the PDSCH identifier and the transmission resource identifier, indication corresponding to the PUSCH identifier and the transmission resource identifier, rule corresponding to the PDSCH identifier and the transmission resource identifier, rule corresponding to the PUSCH identifier and the transmission resource identifier.

[0166] In some embodiments, the first control information includes at least one of the following: radio resource control (RRC) message, downlink control information (DCI).

[0167] In some embodiments, the second control information includes at least one of the following: RRC message, DCI.

[0168] In some embodiments, the HARQ entity is any one of the following: a HARQ entity corresponding to one data radio bearer (DRB), a HARQ entity corresponding to multiple DRBs, a HARQ entity corresponding to multiple DRBs multiplexed at the media access control (MAC) layer.

[0169] Figure 22 The following shows a schematic diagram of the composition of another communication device provided by an embodiment of the present disclosure. As Figure 22 shown, the communication device 60 includes a processing unit 601 and a transmitting unit 602.

[0170] The communication device 60 may be the above-mentioned second node or a chip in the second node. When the communication device 60 is used to implement the functions of the second node in the above embodiments, each unit is specifically used to implement the following functions.

[0171] The processing unit 601 is configured to associate a HARQ entity with a set of physical shared channels;

[0172] The transmitting unit 602 is configured to transmit first control information, where the first control information is used to indicate the association relationship between the HARQ entity and the set of physical shared channels.

[0173] In some embodiments, the processing unit 601 is further configured to determine a set of transmission resources corresponding to the set of physical shared channels;

[0174] The sending unit 602 is further configured to send second control information, where the second control information is used to indicate the correspondence between physical shared channels in the physical shared channel set and transmission resources in the transmission resource set.

[0175] In some embodiments, the processing unit 601 is further configured to associate the HARQ entity with the transmission resource set.

[0176] In some embodiments, the physical shared channel set includes at least one of the following: multiple physical downlink shared channels (PDSCHs), multiple physical uplink shared channels (PUSCHs).

[0177] In some embodiments, the transmission resource set includes multiple transmission resources, and the transmission resources include at least one of the following: carrier, partial bandwidth (BWP), cell, beam, transmit / receive point (TRP).

[0178] In some embodiments, the transmission resource set includes at least one of the following: carrier set, BWP set, cell set, beam set, TRP set, where the number of carriers included in the carrier set is greater than 1, the BWP set includes multiple BWPs located on different carriers, and the beam set includes multiple spatial beams belonging to different carriers.

[0179] In some embodiments, all physical shared channels in the physical shared channel set associated with the HARQ entity can share the HARQ buffer of the HARQ entity.

[0180] In some embodiments, all transmission resources in the transmission resource set associated with the HARQ entity can be used to transmit data in the HARQ buffer of the HARQ entity.

[0181] In some embodiments, the new transmission and retransmission of the same data packet under the HARQ entity are respectively carried on different physical shared channels in the physical shared channel set associated with the HARQ entity for transmission.

[0182] In some embodiments, the new transmission and retransmission of the same data packet under the HARQ entity respectively use different transmission resources in the transmission resource set associated with the HARQ entity for transmission.

[0183] In some embodiments, the uplink data and downlink data under the HARQ entity respectively use different transmission resources in the transmission resource set associated with the HARQ entity for transmission, or the uplink data and downlink data under the HARQ entity respectively use the same transmission resources in the transmission resource set associated with the HARQ entity for transmission.

[0184] In some embodiments, the identifier of the transmission resource used for uplink data is different from the identifier of the transmission resource used for downlink data; and / or, the number of transmission resources used for uplink data is different from the number of transmission resources used for downlink data.

[0185] In some embodiments, the first control information includes at least one of the following: HARQ entity identifier, PDSCH identifier, PUSCH identifier, carrier identifier, indication corresponding to the PDSCH identifier and the carrier identifier, indication corresponding to the PUSCH identifier and the carrier identifier, rule corresponding to the PDSCH identifier and the carrier identifier, rule corresponding to the PUSCH identifier and the carrier identifier.

[0186] In some embodiments, the second control information includes at least one of the following: HARQ entity identifier, PDSCH identifier, PUSCH identifier, transmission resource identifier, indication corresponding to the PDSCH identifier and the transmission resource identifier, indication corresponding to the PUSCH identifier and the transmission resource identifier, rule corresponding to the PDSCH identifier and the transmission resource identifier, rule corresponding to the PUSCH identifier and the transmission resource identifier.

[0187] In some embodiments, the first control information includes at least one of the following: Radio Resource Control (RRC) message, Downlink Control Information (DCI).

[0188] In some embodiments, the second control information includes at least one of the following: RRC message, DCI.

[0189] In some embodiments, the HARQ entity is any one of the following: HARQ entity corresponding to one Data Radio Bearer (DRB), HARQ entity corresponding to multiple DRBs, HARQ entity corresponding to multiple DRBs multiplexed at the Medium Access Control (MAC) layer.

[0190] It should be noted that Figure 21 and Figure 22 the units in Figure 21 and Figure 22 can also be referred to as modules. For example, the sending unit can be called the sending module. Additionally, in the embodiments shown in

[0191] Figure 21 and Figure 22When each unit in [the above] is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the embodiments of the present disclosure, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods of the various embodiments of the present disclosure. The storage media storing the computer software product include: various media such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs that can store program codes.

[0192] When the above communication device 50 or communication device 60 implements the functions of the above integrated module in the form of hardware, the embodiments of the present disclosure provide a structural schematic diagram of a communication device. As Figure 23 shown, the communication device 70 includes: a processor 702, a communication interface 703, and a bus 704. Optionally, the communication device 70 may further include a memory 701.

[0193] The processor 702 can be used to implement or execute various exemplary logic blocks, modules, and circuits described in connection with the disclosure of the present disclosure. The processor 702 can be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, modules, and circuits described in connection with the disclosure of the present disclosure. The processor 702 can also be a combination that implements computing functions, such as a combination including one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0194] The communication interface 703 is used to connect to other devices through a communication network. The communication network can be an Ethernet, a wireless access network, a wireless local area network (WLAN), etc.

[0195] The memory 701 can be a read-only memory (ROM), or other types of static storage devices that can store static information and instructions, a random access memory (RAM), or other types of dynamic storage devices that can store information and instructions. It can also be an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium, or other magnetic storage devices, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0196] As a possible implementation, the memory 701 can exist independently of the processor 702. The memory 701 can be connected to the processor 702 through the bus 704 for storing instructions or program code. When the processor 702 calls and executes the instructions or program code stored in the memory 701, the information transmission method provided by the embodiments of the present disclosure can be implemented.

[0197] In another possible implementation, the memory 701 can also be integrated with the processor 702.

[0198] The bus 704 can be an extended industry standard architecture (EISA) bus, etc. The bus 704 can be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience of representation, Figure 23 only a thick line is used to represent it in the figure, but it does not mean that there is only one bus or one type of bus.

[0199] Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and conciseness of description, only the above division of each functional module is used as an example. In practical applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the base station or terminal is divided into different functional modules to complete all or part of the functions described above.

[0200] Embodiments of the present disclosure also provide a computer-readable storage medium. All or part of the processes in the above method embodiments can be completed by computer instructions instructing relevant hardware. The program can be stored in the above computer-readable storage medium. When the program is executed, it can include the processes of the above method embodiments. The computer-readable storage medium can be the memory in any of the foregoing embodiments. The above computer-readable storage medium can also be an external storage device of the above first node or second node, such as a plug-in hard disk equipped on the above first node or second node, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. Further, the above computer-readable storage medium can also include both the internal storage unit of the above first node or second node and the external storage device. The above computer-readable storage medium is used to store the above computer program and other programs and data required by the above first node or second node. The above computer-readable storage medium can also be used to temporarily store the data that has been output or will be output.

[0201] Embodiments of the present disclosure also provide a computer program product. The computer product includes a computer program. When the computer program product runs on a computer, it causes the computer to execute any one of the information transmission methods provided in the above embodiments.

[0202] Although the present disclosure has been described in conjunction with various embodiments, however, in the process of implementing the claimed present disclosure, those skilled in the art can understand and realize other variations of the embodiments of the disclosure by viewing the drawings, the disclosure content, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude a plurality of cases. A single processor or other unit can implement several functions recited in the claims. Certain measures are recited in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0203] Although the present disclosure has been described in conjunction with specific features and their embodiments, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the present disclosure. Accordingly, this specification and the drawings are merely exemplary illustrations of the present disclosure defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of the present disclosure. Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalent technologies, the present disclosure also intends to include these changes and modifications.

[0204] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed by the present disclosure should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An information transmission method, characterized in that, Applied to a first node, the method includes: Receiving first control information for indicating an association relationship between a Hybrid Automatic Repeat reQuest (HARQ) entity and a set of Physical Shared Channels (PSCHs); Associating the HARQ entity with the set of PSCHs based on the first control information.

2. The method according to claim 1, wherein The method further includes: Receiving second control information for indicating a correspondence relationship between PSCHs in the set of PSCHs and transmission resources in a set of transmission resources; Determining the set of transmission resources corresponding to the set of PSCHs based on the second control information.

3. The method according to claim 1 or 2, characterized in that, The method further includes: Associating the HARQ entity with the set of transmission resources.

4. The method according to claim 1, wherein The set of PSCHs includes at least one of the following: multiple Physical Downlink Shared Channels (PDSCHs), multiple Physical Uplink Shared Channels (PUSCHs).

5. The method according to claim 2, characterized in that, The set of transmission resources includes multiple transmission resources, and the transmission resources include at least one of the following: carrier, Bandwidth Part (BWP), cell, beam, Transmit / Receive Point (TRP).

6. The method according to claim 5, wherein The set of transmission resources includes at least one of the following: a set of carriers, a set of BWPs, a set of cells, a set of beams, a set of TRPs, where the number of carriers included in the set of carriers is greater than 1, the set of BWPs includes multiple BWPs located on different carriers, and the set of beams includes multiple spatial beams belonging to different carriers.

7. The method according to claim 1, characterized in that All PSCHs in the set of PSCHs associated with the HARQ entity can share and use the HARQ buffer of the HARQ entity.

8. The method according to claim 3, wherein All transmission resources in the set of transmission resources associated with the HARQ entity can be used to transmit data in the HARQ buffer of the HARQ entity.

9. The method according to claim 1, characterized in that The new transmission and retransmission of the same data packet under the HARQ entity are respectively carried and transmitted on different PSCHs in the set of PSCHs associated with the HARQ entity.

10. The method according to claim 3, wherein The new transmission and retransmission of the same data packet under the HARQ entity respectively use different transmission resources in the set of transmission resources associated with the HARQ entity for transmission.

11. The method according to claim 3, wherein: The uplink data and downlink data under the HARQ entity respectively use different transmission resources in the set of transmission resources associated with the HARQ entity; or The uplink data and downlink data under the HARQ entity respectively use the same transmission resources in the set of transmission resources associated with the HARQ entity.

12. The method according to claim 11, wherein The identifier of the transmission resource used by the uplink data is different from the identifier of the transmission resource used by the downlink data; and / or, the number of transmission resources used by the uplink data is different from the number of transmission resources used by the downlink data.

13. The method according to claim 1, wherein The first control information includes at least one of the following: HARQ entity identifier, PDSCH identifier, PUSCH identifier, carrier identifier, indication corresponding to the PDSCH identifier and the carrier identifier, indication corresponding to the PUSCH identifier and the carrier identifier, rule corresponding to the PDSCH identifier and the carrier identifier, rule corresponding to the PUSCH identifier and the carrier identifier.

14. The method according to claim 2, characterized in that, The second control information includes at least one of the following: HARQ entity identifier, PDSCH identifier, PUSCH identifier, transmission resource identifier, indication corresponding to the PDSCH identifier and the transmission resource identifier, indication corresponding to the PUSCH identifier and the transmission resource identifier, rule corresponding to the PDSCH identifier and the transmission resource identifier, rule corresponding to the PUSCH identifier and the transmission resource identifier.

15. The method according to claim 1, characterized in that, The first control information includes at least one of the following: Radio Resource Control (RRC) message, Downlink Control Information (DCI).

16. The method according to claim 2, characterized in that, The second control information includes at least one of the following: RRC message, DCI.

17. The method according to claim 1, characterized in that, The HARQ entity is any one of the following: a HARQ entity corresponding to one Data Radio Bearer (DRB), a HARQ entity corresponding to multiple DRBs, a HARQ entity corresponding to multiple DRBs multiplexed at the Medium Access Control (MAC) layer.

18. An information transmission method, characterized in that, Applied to a second node, the method includes: Associating a HARQ entity with a set of physical shared channels; Sending first control information, where the first control information is used to indicate the association relationship between the HARQ entity and the set of physical shared channels.

19. The method according to claim 18, characterized in that, The method further includes: Determining a set of transmission resources corresponding to the set of physical shared channels; Sending second control information, where the second control information is used to indicate the correspondence between the physical shared channels in the set of physical shared channels and the transmission resources in the set of transmission resources.

20. The method according to claim 18 or 19, characterized in that, The method further includes: Associating the HARQ entity with the set of transmission resources.

21. The method according to claim 18, wherein The set of physical shared channels includes at least one of the following: multiple Physical Downlink Shared Channels (PDSCHs), multiple Physical Uplink Shared Channels (PUSCHs).

22. The method according to claim 19, wherein The set of transmission resources includes multiple transmission resources, and the transmission resources include at least one of the following: carrier, Bandwidth Part (BWP), cell, beam, Transmit / Receive Point (TRP).

23. The method according to claim 22, wherein The set of transmission resources includes at least one of the following: a set of carriers, a set of BWPs, a set of cells, a set of beams, a set of TRPs, where the number of carriers included in the set of carriers is greater than 1, the set of BWPs includes multiple BWPs located on different carriers, and the set of beams includes multiple spatial beams belonging to different carriers.

24. The method according to claim 18, characterized in that, All the physical shared channels in the set of physical shared channels associated with the HARQ entity can share the HARQ buffer of the HARQ entity.

25. The method according to claim 20, wherein All the transmission resources in the set of transmission resources associated with the HARQ entity can be used to transmit the data in the HARQ buffer of the HARQ entity.

26. The method according to claim 18, wherein The new transmission and retransmission of the same data packet under the HARQ entity are respectively carried and transmitted on different physical shared channels in the set of physical shared channels associated with the HARQ entity.

27. The method according to claim 20, wherein The new transmission and retransmission of the same data packet under the HARQ entity respectively use different transmission resources in the set of transmission resources associated with the HARQ entity for transmission.

28. The method according to claim 20, wherein, The uplink data and downlink data under the HARQ entity are respectively transmitted using different transmission resources in the set of transmission resources associated with the HARQ entity; or, The uplink data and downlink data under the HARQ entity are respectively transmitted using the same transmission resources in the set of transmission resources associated with the HARQ entity.

29. The method according to claim 28, wherein The identifier of the transmission resource used by the uplink data is different from the identifier of the transmission resource used by the downlink data; and / or, the number of transmission resources used by the uplink data is different from the number of transmission resources used by the downlink data.

30. The method according to claim 18, characterized in that, The first control information includes at least one of the following: HARQ entity identifier, PDSCH identifier, PUSCH identifier, carrier identifier, indication corresponding to the PDSCH identifier and the carrier identifier, indication corresponding to the PUSCH identifier and the carrier identifier, rule corresponding to the PDSCH identifier and the carrier identifier, rule corresponding to the PUSCH identifier and the carrier identifier.

31. The method according to claim 19, wherein The second control information includes at least one of the following: HARQ entity identifier, PDSCH identifier, PUSCH identifier, transmission resource identifier, indication corresponding to the PDSCH identifier and the transmission resource identifier, indication corresponding to the PUSCH identifier and the transmission resource identifier, rule corresponding to the PDSCH identifier and the transmission resource identifier, rule corresponding to the PUSCH identifier and the transmission resource identifier.

32. The method according to claim 18, characterized in that, The first control information includes at least one of the following: radio resource control (RRC) message, downlink control information (DCI).

33. The method according to claim 19, wherein The second control information includes at least one of the following: RRC message, DCI.

34. The method according to claim 18, wherein The HARQ entity is any one of the following: a HARQ entity corresponding to one data radio bearer (DRB), a HARQ entity corresponding to multiple DRBs, a HARQ entity corresponding to multiple DRBs multiplexed at the media access control (MAC) layer.

35. A communication device, characterized in that, Comprising: A memory and a processor; The memory and the processor are coupled; The memory is used to store instructions executable by the processor; When the processor executes the instructions, it executes the method according to any one of claims 1-17, or the method according to any one of claims 18-34.

36. A computer-readable storage medium, characterized in that, Computer instructions are stored on the computer-readable storage medium, and when the computer instructions run on a computer, the computer is caused to execute the method according to any one of claims 1-17, or the method according to any one of claims 18-34.

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