Communication method and device, storage medium and program product

Abstract

The embodiment of the invention provides a communication method and device, a storage medium and a program product, relates to the technical field of communication, can flexibly configure channel resources for different physical channels, and meets the requirements of low-delay and high-reliability communication data transmission between devices. The method is applied to a member node in a device-to-device (D2D) communication system, and comprises: determining a channel resource corresponding to a physical channel based on a resource configuration signaling, the physical channel comprising at least one of a control channel, a data channel and a feedback channel.

Description

Technical Field

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

[0002] With the development of wireless communication technology and the increasing demand of users for communication, in order to meet the communication needs of low latency, high reliability and high speed, the fifth generation mobile communication technology (5G), the evolution of the fifth generation mobile communication technology (5G-A) and the sixth generation mobile communication technology (6G) have become the trend of future network development and implementation. The future communication network includes not only the link (Uu link) between the base station and the user equipment (UE), but also the side link (SL) directly connected to the UE. In the sidelink communication between UEs, when there is business to be transmitted between UEs, the business data between UEs does not pass through the network side, that is, it is not forwarded through the cellular link between the UE and the base station, but is directly transmitted from the data source UE to the target UE through the sidelink.

[0003] In the industrial field network, there is a UE as the head node, which is connected to a wireless network of multiple member UEs. However, in the current SL communication technology, the control channel and the data channel are bound and do not support the transmission of independent control channels.

[0004] Therefore, how to flexibly configure channel resources for different physical channels to transmit data has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The embodiments of the present disclosure provide a communication method, apparatus, storage medium, and program product, which can flexibly configure channel resources for different physical channels to transmit data, avoid resource configuration of useless channels to reduce transmission delay, and meet the requirements of low-latency and high-reliability communication data transmission between devices.

[0006] In one aspect, a communication method is provided, which is applied to a member node in a device-to-device (D2D) communication system, comprising: determining a channel resource corresponding to a physical channel based on resource configuration signaling, the physical channel including at least one of a control channel, a data channel, and a feedback channel, and transmitting data on the channel resource corresponding to the physical channel.

[0007] On the other hand, a communication method is provided, which is applied to a head node in a D2D communication system, comprising: sending resource configuration signaling of a physical channel to member nodes in the D2D communication system, wherein the physical channel comprises at least one of a control channel, a data channel and a feedback channel.

[0008] In yet another aspect, a communication device is provided, which is applied to a member node in a device-to-device D2D communication system. The device includes: a processing module and a transmission module.

[0009] The processing module is used to determine the channel resources corresponding to the physical channel based on the resource configuration signaling, and the physical channel includes at least one of the control channel, the data channel and the feedback channel. The transmission module is used to transmit data on the channel resources corresponding to the physical channel.

[0010] On the other hand, a communication device is provided, which is applied to a head node in a D2D communication system. The device includes: a sending module.

[0011] The sending module is used to send resource configuration signaling of a physical channel to a member node in the D2D communication system, where the physical channel includes at least one of a control channel, a data channel and a feedback channel.

[0012] In another aspect, a communication device is provided, comprising: a memory and a processor. The memory and the processor are coupled. The memory is used to store a computer program. When the processor executes the computer program, the communication method of any of the above embodiments is implemented.

[0013] On the other hand, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the communication method of any of the above embodiments is implemented.

[0014] On the other hand, a computer program product is provided, which includes computer program instructions, and when the computer program instructions are executed, the communication method of any of the above embodiments is implemented.

[0015] The disclosed embodiment discloses that by flexibly configuring channel resources for at least one of the control channel, the data channel and the feedback channel, the control channel, the data channel and the feedback channel can be selectively applied during the transmission process, and the control channel, the data channel and the feedback channel can be combined as needed to avoid resource configuration of useless channels to reduce transmission delay, meet the low-latency and high-reliability communication data transmission requirements between devices, and better match the data direct transmission requirements between UEs in the industrial field network. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present disclosure, the drawings required for use in some embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and a person skilled in the art can also obtain other drawings based on these drawings.

[0017] Figure 1 A communication connection schematic diagram provided for some embodiments of the present disclosure;

[0018] Figure 2 A schematic diagram of a distribution example of a control channel and a data channel in a time slot provided in some embodiments of the present disclosure;

[0019] Figure 3 A schematic diagram of another distribution example of control channels and data channels in a time slot provided for some embodiments of the present disclosure;

[0020] Figure 4 A schematic diagram of another distribution example of control channels and data channels in a time slot provided for some embodiments of the present disclosure;

[0021] Figure 5 A schematic diagram of a communication system provided for some embodiments of the present disclosure;

[0022] Figure 6 A flow chart of a communication method provided in some embodiments of the present disclosure;

[0023] Figure 7 A schematic diagram of a time slot structure provided for some embodiments of the present disclosure;

[0024] Figure 8 Another schematic diagram of a time slot structure provided for some embodiments of the present disclosure;

[0025] Fig. 9 Another schematic diagram of a time slot structure provided for some embodiments of the present disclosure;

[0026] Fig.10 Another schematic diagram of a time slot structure provided for some embodiments of the present disclosure;

[0027] Fig.11 Another schematic diagram of a time slot structure provided for some embodiments of the present disclosure;

[0028] Fig.12 A schematic diagram of a correspondence relationship between a control resource and a feedback resource provided in some embodiments of the present disclosure;

[0029] Fig.13 A schematic diagram of another correspondence relationship between control resources and feedback resources provided in some embodiments of the present disclosure;

[0030] Fig.14 Another schematic diagram of a time slot structure provided for some embodiments of the present disclosure;

[0031] Fig.15 Another schematic diagram of a time slot structure provided for some embodiments of the present disclosure;

[0032] Fig.16 Another schematic diagram of a time slot structure provided for some embodiments of the present disclosure;

[0033] Fig.17 Another schematic diagram of a time slot structure provided for some embodiments of the present disclosure;

[0034] Fig.18 Another schematic diagram of a time slot structure provided for some embodiments of the present disclosure;

[0035] Fig.19 Another schematic diagram of a time slot structure provided for some embodiments of the present disclosure;

[0036] Fig. 20 A flowchart of another communication method provided for some embodiments of the present disclosure;

[0037] Fig.21 A flowchart of another communication method provided for some embodiments of the present disclosure;

[0038] Fig. 22 A schematic diagram of a communication device provided in some embodiments of the present disclosure Figure 1 ;

[0039] Fig.23 A schematic diagram of a communication device provided in some embodiments of the present disclosure Figure 2 ;

[0040] Fig.24 A schematic diagram of a communication device provided in some embodiments of the present disclosure Figure 3 . DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the present disclosure to clearly and completely describe the technical solutions in the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0042] It should be noted that, in the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present disclosure should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0043] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0044] In the description of the present disclosure, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" means one or more, and "a plurality" means two or more.

[0045] In the industrial field network scenario, under the coverage of the base station, there are both directly connected UEs and some remote UEs, and the remote UEs are directly connected to the head node UE.

[0046] like Figure 1 As shown, the small network composed of member UEs (such as UE1, UE2 and UE3) and head node UE can be called a micro-network. In the micro-network, only the head node needs to be connected to the base station, and other UEs only need to establish a connection with the head node UE to achieve communication between UE and another UE or between UE and base station. This technology can reduce the burden on cellular networks and reduce the battery power consumption of user equipment, and well meet the requirements of high data rate services and proximity services. It also supports direct communication between devices in scenarios without network coverage, and can meet the low-latency and high-reliability communication requirements in industrial field networks.

[0047] That is to say, similar to the topology structure in which multiple UEs are connected under one base station in the third generation partnership project (3GPP), the communication between the head node and the member UEs includes the head node sending a control channel, the head node sending a control channel and a data channel, the member UE sending a control channel, the member UE sending a control channel and a data channel, and the member UE sending a feedback channel.

[0048] SL communications in 3GPP include device-to-device (D2D), long term evolution vehicle-to-everything (LTE V2X) and new radio vehicle-to-everything (NR V2X). Figure 2 As shown, in D2D, the control channel and the data channel are in different time slots. The control channel is in the first few time slots of the communication scheduling cycle, and the data channel is in the last few time slots of the scheduling cycle, and corresponds to their respective subframe areas (i.e., control subframe area, data subframe area).

[0049] This structure where the control channel and data channel are distributed in different time slots has a large communication delay and is not suitable for scenarios where the field network has low latency and high reliability requirements. For LTE V2X, Figure 3 As shown, the control channel and the data channel are further placed in one time slot, and correspond one to one, and the control channel and the data channel are frequency divided.

[0050] That is, the frequency domain on a time slot is divided into multiple sub-bands, and a sub-band consists of a data channel (such as Data) and a control channel (such as synchronization and acquisition (SA)), and the distribution structure of the control channel and the data channel in each sub-band is the same.

[0051] Compared with D2D, this channel structure can reduce the data transmission delay. Figure 4 As shown, in NR V2X, the delay of sending and receiving data is taken into consideration and the resources of the control channel are shortened to 3 symbols. That is, the control channel does not occupy all the symbols of the entire time slot, but selects some symbols to occupy.

[0052] However, whether it is LTE SL or NR SL, the resources of the control channel and data channel are coupled and bound to the subband. In the direct transmission link of each UE in the field network, the traditional channel structure cannot directly realize independent control transmission. In addition, the design of the traditional SL control channel is quite different from that of the Uu control channel, which is not conducive to the unification of Uu and SL in one module in 6G.

[0053] In summary, how to flexibly configure channel resources for different physical channels and avoid resource configuration of useless channels to reduce transmission delay has become a technical problem that needs to be solved urgently.

[0054] Based on this, in order to solve the above technical problems, the embodiment of the present disclosure provides a communication method, which is applied to the data interaction scenario between UEs in the D2D communication system. By flexibly configuring channel resources for at least one of the control channel, data channel and feedback channel, the control channel, data channel and feedback channel can be selectively applied during the transmission process, and the control channel, data channel and feedback channel can be combined as needed to avoid the resource configuration of useless channels to reduce the transmission delay, meet the low-latency and high-reliability communication data transmission requirements between devices, and better match the data direct transmission requirements between UEs in the industrial field network.

[0055] The network architecture of the mobile communication network (including but not limited to 2G, 3G, 4G, 5G and future mobile communication networks (such as the evolution of the fifth generation mobile communication technology (5th generation mobile communication technology Advanced, 5G-A), the sixth generation mobile communication technology (6th generation mobile communication technology, 6G)) in the disclosed embodiment may include at least a first communication node and a second communication node. It should be understood that in this example, in the uplink, the first communication node may be a terminal side device (for example, including but not limited to a terminal), and the second communication node may be a network (network, NW) side device (for example, including but not limited to a base station). Of course, in the downlink, the first communication node may also be a network side device, and the second communication node may also be a terminal side device. In the device-to-device communication between the two communication nodes, the first communication node and the second communication node may both be a base station or a terminal. The first communication node and the second communication node may be referred to as the first node and the second node, respectively.

[0056] Alternatively, in SL communication, the first node in the uplink may be a member node (such as a member UE) and the second node may be a head node; the first node in the downlink may be a head node and the second node may be a member node.

[0057] For example, Figure 5 As shown, it is a schematic diagram of a communication system provided in an embodiment of the present disclosure, and the communication system may include: at least one member node (such as member node 501, member node 502 and member node 503) and a head node 504, and the member node 501, member node 502, member node 503 and head node 504 constitute a D2D communication.

[0058] Among them, the head node 504 can send resource configuration signaling to the member node 501 to indicate the channel resource configuration of at least one of the control channel, the data channel and the feedback channel, so that the member node 501 can selectively configure resources for some physical channels as needed when transmitting with the head node 504 or with other member nodes (such as member node 502, member node 503) based on the channel resources configured for different physical channels, thereby avoiding resource configuration of useless channels to reduce transmission delay, and thus better matching the data direct transmission requirements between UEs in the industrial field network.

[0059] Similarly, the head node 504 may also send resource configuration signaling to the member node 502 and / or the member node 503 in sequence.

[0060] In some embodiments, the head node 504 may send the same resource configuration signaling to different member nodes (such as member node 501, member node 502, and member node 503) to uniformly manage all member nodes. Alternatively, the head node 504 may send different resource configuration signaling to different member nodes (such as member node 501, member node 502, and member node 503) to perform targeted management on each member node.

[0061] In other embodiments, all member nodes (such as member node 501, member node 502 and member node 503) and head node 504 may be pre-configured (such as factory settings) with resource configuration signaling so that resources can be selectively configured for some physical channels between member nodes and head nodes, and between member nodes as needed.

[0062] It should be noted that, in the embodiment of the present disclosure, all member nodes (such as member node 501, member node 502, and member node 503) and head node 504 are terminals of the same type. Alternatively, all member nodes (such as member node 501, member node 502, and member node 503) and head node 504 are terminals of different types. Alternatively, some of all member nodes and head node 504 are terminals of the same type, and the remaining member nodes and head node 504 are terminals of different types.

[0063] The terminal can be a device with wireless transceiver function. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The embodiments of the present disclosure do not limit the application scenarios. The terminal can sometimes also be called a user, user equipment (UE), A-IoT device, access terminal, UE unit, UE station, mobile station, mobile station, remote station, transmitter, remote terminal, mobile device, UE terminal, wireless communication equipment, UE agent or UE device, etc., and the embodiments of the present disclosure do not limit this.

[0064] It should be noted that Figure 5 This is just an exemplary framework diagram. Figure 5 The number of devices included in the Figure 5 In addition to the devices shown, the communication system may also include other devices, such as base stations and core network devices.

[0065] The application scenarios of the embodiments of the present disclosure are not limited. The system architecture and business scenarios described in the embodiments of the present disclosure are intended to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. It is known to those skilled in the art that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0066] Figure 6 A flow chart of a communication method is shown, Figure 6 As shown, the communication method is applied to a member node in a D2D communication system, including:

[0067] S601. Determine channel resources corresponding to a physical channel based on resource configuration signaling.

[0068] The physical channel may include at least one of a control channel, a data channel and a feedback channel.

[0069] In the embodiment of the present disclosure, the resource configuration signaling is used to indicate the candidate channel resources referenced when performing channel resource configuration on any one of the control channel, the data channel and the feedback channel.

[0070] It should be noted that channel resources may include time domain resources and frequency domain resources, and the time domain resources have a symbol in a time slot as a unit granularity, and the frequency domain resources have a physical resource block (PRB) in the communication frequency domain bandwidth as a unit granularity.

[0071] S602: Perform data transmission on channel resources corresponding to the physical channel.

[0072] As a possible implementation manner, the member node may map the data to be transmitted to the channel resources corresponding to the physical channel determined by the resource configuration signaling, and then use the channel resources corresponding to the physical channel to perform data transmission.

[0073] The member node may send data on the channel resources corresponding to the physical channel, and may also receive data on the channel resources corresponding to the physical channel.

[0074] That is to say, by flexibly configuring channel resources for at least one of the control channel, data channel and feedback channel, the control channel, data channel and feedback channel can be selectively applied during the transmission process, and the control channel, data channel and feedback channel can be combined as needed to avoid resource configuration of useless channels to reduce transmission delay, meet the low-latency and high-reliability communication data transmission requirements between devices, and better match the direct data transmission requirements between UEs in the industrial field network.

[0075] In some embodiments, resource configuration signaling may be divided into different sub-signals for control channels, data channels, and feedback channels for separate configuration.

[0076] The resource configuration signaling may include: a first resource configuration signaling for a data channel, and the first resource configuration signaling may include at least one of the following (1.1)-(1.9):

[0077] (1.1) The time domain resources of the data channel include all time domain continuous symbols between the first symbol and the last symbol in a time slot;

[0078] (1.2) The time domain resources of the data channel include the remaining time domain continuous symbols between the first symbol and the last symbol in a time slot that are not occupied by the control channel;

[0079] (1.3) The time domain resources of the data channel include the remaining time domain continuous symbols between the first symbol and the last symbol in a time slot that are not occupied by the control channel and the feedback channel;

[0080] (1.4) The frequency domain resources of the data channel include all physical resource blocks in a communication frequency domain bandwidth;

[0081] (1.5) The frequency domain resources of the data channel include the remaining physical resource blocks in all physical resource blocks in a communication frequency domain bandwidth that are not occupied by the control channel;

[0082] (1.6) The frequency domain resources of the data channel include the remaining physical resource blocks in all physical resource blocks in a communication frequency domain bandwidth that are not occupied by the control channel and the feedback channel;

[0083] (1.7) The frequency domain resources of the data channel include all physical resource blocks in a communication frequency domain bandwidth on at least one symbol in a time slot where the time domain resources of the data channel and the time domain resources of the control channel do not overlap;

[0084] (1.8) The frequency domain resources of the data channel include the remaining physical resource blocks not occupied by the control channel in a communication frequency domain bandwidth on at least one symbol where the data channel and the control channel overlap in the time domain resources in a time slot;

[0085] (1.9) The frequency domain resources of the data channel include the remaining physical resource blocks not occupied by the control channel and the feedback channel in a communication frequency domain bandwidth on at least one symbol where the time domain resources of the data channel and the control channel overlap in a time slot.

[0086] Similarly, the resource configuration signaling may further include: a second resource configuration signaling for the control channel, and the second resource configuration signaling may include at least one of the following (2.1)-(2.3):

[0087] (2.1) The time domain resources of the control channel include some time domain continuous symbols after the first symbol in a time slot;

[0088] (2.2) The frequency domain resources of the control channel include all physical resource blocks in a communication frequency domain bandwidth;

[0089] (2.3) The frequency domain resources of the control channel include some frequency domain continuous or discrete physical resource blocks among all physical resource blocks in a communication frequency domain bandwidth.

[0090] As a possible implementation manner, the frequency domain resources in the second resource configuration signaling may correspond to multiple control channels, and the multiple control channels may satisfy at least one of the following (α)-(γ):

[0091] (α) The time domain resources of multiple control channels are the same;

[0092] (β) The multiple control channels are divided into M types, each type of control channel includes at least one control channel, and the number of physical resource blocks of each control channel in the frequency domain is the same in the same type of control channels;

[0093] (γ) Frequency division between frequency domain resources of different control channels.

[0094] Similarly, the resource configuration signaling may further include: a third resource configuration signaling for the feedback channel, and the third resource configuration signaling may include at least one of the following (3.1)-(3.5):

[0095] (3.1) The time domain resources of the feedback channel include some time domain continuous symbols before the last symbol in a time slot;

[0096] (3.2) The time domain resources of the feedback channel are the same as those of the control channel;

[0097] (3.3) The time slot period of the feedback channel;

[0098] (3.4) The frequency domain resources of the feedback channel include all physical resource blocks in a communication frequency domain bandwidth;

[0099] (3.5) The frequency domain resources of the feedback channel include some frequency domain continuous or discrete physical resource blocks among all physical resource blocks in a communication frequency domain bandwidth.

[0100] As a possible implementation manner, the frequency domain resources in the third resource configuration signaling may correspond to multiple feedback channels, and the multiple feedback channels may satisfy at least one of the following (a)-(c):

[0101] (a) the multiple feedback channels are divided into N types, each type of feedback channel includes at least one feedback channel, and the number of physical resource blocks of each feedback channel in the frequency domain is the same in the same type of feedback channels;

[0102] (b) The time domain resources of multiple feedback channels are the same;

[0103] (c) Frequency division between frequency domain resources of different feedback channels.

[0104] In an embodiment of the present disclosure, when the physical channel includes both a control channel and a feedback channel, and the time domain resources of the feedback channel are the same as the time domain resources of the control channel, the feedback channel and the control channel share the same candidate frequency domain resource range, and the frequency domain resources of the feedback channel and the frequency domain resources of the control channel are frequency-divided.

[0105] The channel resources (ie, frequency domain resources and time domain resources) of the control channel, data channel, and feedback channel are introduced below with reference to specific examples.

[0106] In some embodiments, it is taken as an example that there are only a control channel and a data channel in one time slot.

[0107] That is to say, in the field network, considering the communication delay, the control channel and the data channel are still located in the same time slot, but the resources of the control channel and the resources of the data channel are independently configured.

[0108] like Figure 7 and Figure 8 As shown in FIG. 1 , the resource occupancy of the control channel in the time domain and the frequency domain in different time slot structures is shown respectively. Figure 7 It shows that the control channel (such as the physical sidelink control channel (PSCCH)) occupies all frequency domain resource blocks (ie, PRBs) of the communication available resources (ie, the communication frequency domain bandwidth), Figure 8 It shows that the control channel occupies part of the frequency domain resources available for communication. Figure 7 and Figure 8 As shown, the first symbol in the time slot is an automatic gain control symbol (AGC) symbol, and the last symbol is a gap symbol, and the resources between the AGC symbol and the gap symbol are divided into control channel resources (i.e., the range of candidate occupied channel resources corresponding to the control channel) and data channel resources (i.e., the range of candidate occupied channel resources corresponding to the data channel).

[0109] It should be noted that the resources of the control channel (i.e., the resources occupied by the control channel in the control channel resources) are determined according to the configuration, pre-configuration or predefined rules. Similarly, the resources of the data channel (i.e., the resources occupied by the data channel in the data channel resources) are determined according to the configuration, pre-configuration or predefined rules.

[0110] Among them, in the time domain, the N consecutive symbols following the AGC symbol are the time domain resources of the control channel, and one control channel occupies N consecutive symbols in a time slot; and all symbols between the AGC symbol and the gap symbol are the time domain resources of the data channel.

[0111] In the frequency domain, on the symbols of the control channels in the time slot, the frequency domain resource size and position of each control channel are fixed, and different control channels are frequency-divided. A control channel occupies continuous or discrete K PRBs in the frequency domain.

[0112] Or, in the symbol of the control channel in the time slot, there are N types of frequency-divided control channels, the frequency domain resource size and position of each type of control channel are fixed, and different control channels are frequency-divided. A control channel in the i-th type of control channel occupies continuous or discrete K in the frequency domain. i (i=1, 2, ...N) PRBs; each type of control channel can be used for different functions, use different frequency domain sizes, and be configured or pre-configured using different signaling.

[0113] In addition, in the symbols of the data channel within the time slot, all remaining resources except the resources occupied by the control channel are available resources for the data channel.

[0114] Exemplarily, a time slot includes 14 time domain symbols. The control channel occupies 2 consecutive symbols after the first symbol in the time slot, and the SL communication bandwidth is 10M (including 50 PRBs). At this time, the frequency domain of the control channel occupies all PRBs of the communication bandwidth, and the time domain symbol position of the data channel is from the 4th to the second to last symbol in the time slot, and the frequency domain position of the data channel is 50 PRBs of the entire communication bandwidth.

[0115] Furthermore, each control channel occupies 10 PRBs in the frequency domain, so there are 5 candidate control channel resource locations in one time slot, and the data channel resources for sending data of each UE occupy part or all of the frequency domain of all available data channels.

[0116] That is to say, when the UE sends data, it will occupy all available time domain symbols of the data channel.

[0117] In some other embodiments, it is taken as an example that a control channel, a data channel and a feedback channel are simultaneously included in one time slot.

[0118] That is, when a feedback channel needs to be considered in the field network, another channel structure including feedback resources can be considered.

[0119] Combined with the above Figure 8 The time slot structure shown is Fig. 9 As shown, another time slot structure is shown, which includes the resource occupancy of the feedback channel in the time domain and the frequency domain. The control resources correspond to J PSCCHs (i.e., PSCCH-1, ..., PSCCH-J), and the feedback resources correspond to K physical sidelink feedback channels (physical sidelink feedback channel, PSFCH) (i.e., PSFCH-1, ..., PSFCH-K). Among them, the feedback resources (i.e., the channel resources occupied by the feedback channel) and the control resources (i.e., the channel resources occupied by the control channel) are frequency-divided, and different feedback channels in the feedback resources are frequency-divided.

[0120] Homogeneous, the resource sizes of the feedback channels are the same, and the resource sizes and positions of the feedback channels are determined according to configuration or pre-configured signaling or pre-defined rules.

[0121] Furthermore, the time domain symbol position of the feedback resource in the same time slot is the same as the time domain symbol position of the control channel;

[0122] For example, a time slot includes a total of 14 symbols, and the communication bandwidth is 20M (including 100 PRBs). From the second symbol to the third symbol in the time slot, the first to the 50th PRBs in the frequency domain are control channel resources in the time slot, including 10 control channels, each of which occupies 5 PRBs in the frequency domain and occupies 2 consecutive symbols in the time domain.

[0123] From the second symbol to the third symbol in the time slot, the 51st to the 100th PRB in the frequency domain are the feedback channel resources in the time slot, which includes 50 feedback resources. One feedback resource occupies 1 PRB in the frequency domain and 2 symbols in the time domain.

[0124] In addition, the feedback resource is based on a time slot period, and appears once every N time slots in the available time slots in the system frame number (SFN) 0 to frame SFN1023 in each frame period, where N is the time slot period of the feedback resource (and the control resource can be considered to exist in every time slot).

[0125] Exemplarily, the time domain resource period of the feedback channel is 4, which means that one time slot out of every four time slots contains feedback resources.

[0126] In the embodiment of the present disclosure, the base station may configure control channel resources, feedback channel resources (ie, a candidate range of occupied channel resources corresponding to the feedback channel) and data channel resources for the UE.

[0127] It should be noted that the communication bandwidth is not limited to configuring only one control resource or one feedback resource.

[0128] Exemplarily, the communication bandwidth is configured with a first control resource (for resource scheduling), a second control resource (for sleep, activation indication), a first feedback resource (for data or control hybrid automatic repeat request (HARQ) feedback), a second feedback resource (for scheduling request sending), a third feedback resource (for access request), etc. The resources in different areas can be configured or indicated in the communication bandwidth using a bitmap or a high-level signaling indication (starting PRB + number of PRBs).

[0129] Optionally, in combination with the above Fig. 9The time slot structure shown is Fig.10 As shown, it shows another time slot structure, the feedback channel resources of the feedback channel are located within the control channel resources, that is, the control resources (i.e., control channel resources) are divided into a feedback area and a control area, the feedback area contains the feedback channel, and the control area contains the control channel.

[0130] In this case, a total control resource position is first configured in the frequency domain, and control channel resources and feedback channel resources are further configured within the control resources, with frequency division between control channels, between feedback channels, and between control channels and feedback channels.

[0131] For example, there are 14 symbols in a time slot, and the communication bandwidth is 20M (including 100 PRBs). From the second symbol to the third symbol in the time slot, the 10th to the 90th PRBs in the frequency domain are the control resources in the time slot. Furthermore, the first 50 PRBs in the control resources are configured as the control area, which includes 10 control channels, each of which occupies 5 PRBs in the frequency domain and 2 consecutive symbols in the time domain.

[0132] The remaining 30 PRBs in the control area are the feedback area in the control resources, which include 30 feedback resources. One feedback resource occupies 1 PRB in the frequency domain and 2 symbols in the time domain.

[0133] Similarly, the feedback channel resources in the control resources may also be configured based on the time slot cycle.

[0134] Exemplarily, the time domain resource period of the feedback channel is 4, which means that one time slot out of every four time slots contains feedback resources.

[0135] In the disclosed embodiment, the base station may configure control channel resources, feedback channel resources and data channel resources for the UE.

[0136] It should be noted that the control resources are not limited to configuring only one control area or one feedback area.

[0137] Exemplarily, the control resource is configured with a first control region (for resource scheduling), a second control region (for sleep activation indication), a first feedback region (for HARQ feedback of data or control), a second feedback region (for scheduling request sending), a third feedback region (for access request), etc. Resources in different regions can be configured or indicated in the control resource using a bit map or a high-level signaling indication (starting PRB + number of PRBs).

[0138] In addition, combined with the above Figure 7 The time slot structure shown is Fig.11As shown, another time slot structure of the feedback channel and the control channel is shown. Among them, the second to last symbols to the P+1th to last symbols in the time slot are PSFCH symbols, a PSFCH channel occupies P symbols continuously in the time slot, a feedback channel in the frequency domain occupies Q PRBs continuously or discretely, and the frequency domain resource position of each feedback channel is determined according to the configuration or pre-configured signaling or pre-defined rules.

[0139] The first symbol before the feedback resource is an AGC symbol, and the AGC symbol is preceded by a gap symbol for transmitting and receiving conversion.

[0140] In other words, compared with the above Fig. 9 and Fig.10 The time slot structure shown, Fig.11 The time slot structure does not require the PSFCH channel and PSCCH to be the same in the time domain, but there will be more symbol overhead in the time domain.

[0141] Similarly, the configuration of feedback resources can be based on time slots. When PSFCH resources exist in a time slot, the time slot structure is as follows: Fig.11 When there is no PSFCH resource in the time slot, the channel structure is as in the above embodiment. Figure 7 or Figure 8 shown.

[0142] It should be noted that the determination of the feedback resources of the UE (ie, the resources occupied by the feedback channel in the feedback channel resources) may be associated with the control resources.

[0143] In some embodiments, the time-frequency domain resources of the control channel in the current time slot are associated with the time-frequency domain resources of the feedback channel in the first type of feedback channels of N types in a future time slot after a determined time slot interval. One control channel corresponds to one or more feedback channels, and the frequency domain resources of the feedback channels corresponding to different control channels are frequency-divided.

[0144] That is to say, the resource of the feedback channel is determined according to the resource position of the control channel, one control resource corresponds to one or more feedback resources according to a predefined rule, and the feedback resources corresponding to different control resources are orthogonal.

[0145] For example, in combination with the above Fig. 9 Assume that the number of control channels and feedback channels is 2 (i.e., K=J=2), and the interval between control information and feedback information is at least k-1 time slots (i.e., Slot n to Slot n+k). Fig.12 As shown, it shows a schematic diagram of the corresponding relationship between control resources and feedback resources.

[0146] Or, combining the above Fig.11 Assume that the number of control channels and feedback channels is 2 (i.e., K=J=2), and the interval between control information and feedback information is at least k-1 time slots (i.e., Slot n to Slot n+k). Fig.13 As shown, it shows another schematic diagram of the corresponding relationship between control resources and feedback resources.

[0147] In addition, the feedback resource may be indicated by control information, that is, the control information in the control channel may indicate at least one of the following (1)-(5):

[0148] (1) a time slot offset between a time slot position of at least one feedback channel of the second type of feedback channels among the N types and a time slot position of the control channel;

[0149] (2) frequency domain resources of at least one feedback channel of the second type of feedback channels among the N types in a specified time slot;

[0150] (3) a time domain resource index of at least one feedback channel of the second type of feedback channels among the N types;

[0151] (4) a frequency domain resource index of at least one feedback channel of the second type of feedback channels among the N types;

[0152] (5) A resource index of at least one feedback channel of the second type among the N types of feedback channels.

[0153] That is, the resource position of the feedback channel is indicated according to the control information in the control channel of the transmitting UE. In addition, the control information in the control channel indicates the time slot offset of the time slot position of the feedback resource relative to the time slot position of the control channel, and the feedback resource frequency domain position of the feedback resource in the time slot, or the resource index of the feedback resource.

[0154] In this way, the correspondence between the control channel and the feedback channel in different time slot periods is associated through the correspondence between fixed positions, and the feedback resources occupied by the feedback channel can be directly indicated through the control information in the control channel, or the above two can be used in combination, which expands the indication method for the feedback channel, facilitates the acquisition and identification of the feedback channel, and improves the blind detection efficiency.

[0155] Exemplarily, in 10 time slots, starting from the 1st time slot, the feedback channel will appear in the time slots every 4 time slots (i.e., the time slot period of the feedback channel), that is, the feedback channel will appear in the 1st, 5th and 9th time slots in the 10 time slots. If the response delay of the feedback channel A corresponding to the control channel A in the 4th time slot is 2 time slots, the feedback channel A will not have time to appear in the 5th time slot, and will then appear in the 9th time slot as a response to the control channel A. In this way, the time slot interval determined between the control channel A and the feedback channel A is 5 time slots.

[0156] It should be noted that the determination of the transmit energy on the first symbol (ie, the AGC symbol) in the time slot may be associated with the transmit energy on the symbol occupied by any one of the control channel, the data channel and the feedback channel.

[0157] In some embodiments, the transmission energy of the first symbol in a time slot may satisfy at least one of the following (1)-(4):

[0158] (1) The transmit energy of the first symbol in a time slot is equal to the transmit energy of the first symbol in the time domain resource of the control channel;

[0159] (2) The transmit energy of the first symbol in the time slot is equal to the transmit energy of the first symbol in the time domain resource of the feedback channel;

[0160] (3) The transmit energy of the first symbol in a time slot is equal to the transmit energy of the first symbol in the time domain resources of the data channel that does not overlap with the time domain resources of the control channel;

[0161] (4) The transmission energy of the first symbol in a time slot is equal to the transmission energy of the symbol with the largest transmission energy in the time slot except the first symbol.

[0162] Among them, for the above (1), when the UE only sends the control channel, the energy on the AGC symbol is equal to the transmission energy on the first symbol of the control channel (that is, the second symbol of the time slot), such as Fig.14 shown.

[0163] Alternatively, when the UE transmits the data channel and the control channel simultaneously, the energy on the AGC symbol is equal to the transmission energy on the first symbol on the control channel, such as Fig.15 shown.

[0164] For (3) above, when the UE transmits only the data channel, the energy on the AGC symbol is equal to the energy on the first symbol of the symbols without control resources on the data channel, such as Fig.16 shown.

[0165] For (2) above, when the UE transmits only the feedback channel and the control channel in a time slot, the energy on the AGC symbol is equal to the transmission energy on the first symbol on the control channel or the feedback channel, such as Fig.17 shown.

[0166] Alternatively, when the UE transmits only the feedback channel in a time slot, the energy on the AGC symbol is equal to the transmission energy on the first symbol on the feedback channel, such as Fig.18 shown.

[0167] Alternatively, when the UE transmits the data channel and the feedback channel simultaneously, the energy on the AGC symbol is equal to the transmission energy on the first symbol on the feedback channel, such as Fig.19 shown.

[0168] For the above (4), for the transmitting UE, the energy of the first symbol in the time slot is equal to the energy of the symbol with the largest energy among all the symbols transmitted by the UE in the time slot.

[0169] In addition, the first symbol in the time slot may satisfy at least one of the following (1)-(5):

[0170] (1) The information on all resource elements on the first symbol in a time slot is the same as the information on all resource elements on the second symbol in the time slot;

[0171] (2) The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the first symbol in the time domain resources of the data channel in the time slot that do not overlap with the time domain resources of the control channel;

[0172] (3) The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the first symbol in the time domain resources of the control channel in the time slot;

[0173] (4) The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the first symbol in the time domain resources of the feedback channel in the time slot.

[0174] (5) The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the symbol with the largest transmission energy except the first symbol in the time slot.

[0175] That is to say, for the transmitting UE, there is no need to particularly emphasize the energy determination method of the first symbol when describing it. It is just that when the transmitting UE transmits data, it normally maps at least one of the control channel, data channel, and feedback channel to be sent in the time slot. Furthermore, the transmitting UE copies the contents of all resource elements (RE) on the second symbol in the time slot to the first symbol, or the transmitting UE copies the contents of all REs on the symbol with the largest energy among all symbols in the time slot to the first symbol.

[0176] In summary, the resource configuration signaling used by the member nodes may be pre-configured (such as factory settings), or configured by the head node in the same D2D communication system for the member nodes.

[0177] The present disclosure also provides a communication method, which is applied to a head node. Fig. 20 As shown, the communication method may include:

[0178] S2001. Send resource configuration signaling of a physical channel to a member node in a D2D communication system.

[0179] The physical channel may include at least one of a control channel, a data channel and a feedback channel.

[0180] In the embodiment of the present disclosure, the resource configuration signaling is used to indicate the candidate channel resources referenced when performing channel resource configuration on any one of the control channel, the data channel and the feedback channel.

[0181] The resource configuration signaling may include: a first resource configuration signaling for a data channel, a second resource configuration signaling for a control channel, and a third resource configuration signaling for a feedback channel.

[0182] It should be noted that, for the introduction of the first resource configuration signaling, the second resource configuration signaling and the third resource configuration signaling, reference may be made to the description in the above embodiments, which will not be repeated here.

[0183] In some embodiments, the number of member nodes may be multiple, and the multiple member nodes may satisfy at least one of the following (1)-(3):

[0184] (1) The resource configuration signaling corresponding to all member nodes is the same;

[0185] (2) Resource configuration signaling corresponding to different member nodes is different;

[0186] (3) Resource configuration signaling corresponding to some member nodes among all member nodes is the same.

[0187] In other words, by configuring channel resources for multiple member nodes differently, the efficiency of subsequent blind detection can be improved.

[0188] Exemplarily, on the control resources in the field network, the head node control resources shared by the member UEs can be configured, or the head node control resources shared by the group member UEs can be configured, or each member UE can be configured with a dedicated head node control resource, and different dedicated head node control resources can have different time slot periods.

[0189] In addition, the head node may also send scheduling information to the member nodes, instructing the member nodes to map data channels sent to other member nodes on the first preset data channel resources and receive data channels sent by other member nodes on the second preset data channel resources.

[0190] In this way, by directly indicating the data channel resources used between the member nodes, it is possible to avoid excessive use of control channels for indication during transmission, thereby reducing transmission delay.

[0191] Similarly, the head node can indicate the channel resource locations specifically mapped to the control channel, data channel and feedback channel through scheduling information, so as to improve the subsequent blind detection efficiency.

[0192] Exemplarily, when the head node schedules a member UE to transmit data, the head node indicates the resource time-frequency position of the control resources and the resource time-frequency position of the data resources to the member UE transmitting data. The member UE transmitting data transmits the control channel and the data channel, and the control channel indicates the resource time-frequency position of the data channel.

[0193] That is to say, when transmitting data between UEs in the field network, the corresponding control channel must be transmitted, and the control channel is used to indicate the information of the data channel.

[0194] Furthermore, the scheduling information sent by the head node may be at a specific resource position in the control resources within the time slot. The specific resource position is a position of the head node control resource specifically blindly detected by the member UE and may include one or more control channel resources.

[0195] In addition, the feedback resource position indicated by the control channel sent by the head node may be a specific resource position in the feedback resources within the time slot, or a specific resource position in the control resources, and the specific resource is built-in as a resource position for the head node UE to specifically receive feedback information.

[0196] Alternatively, when the head node schedules member UEs to transmit data, the head node indicates the resource time-frequency position of the data resources to the member UEs transmitting data, and the member UEs transmitting data transmit the corresponding data channels according to the scheduling indication. In addition, the head node indicates the resource time-frequency position of the data resources to the data receiving UEs, and the member UEs receiving data receive the corresponding data channels according to the scheduling indication.

[0197] That is to say, when a member UE transmits data, it only transmits the data channel according to the scheduling instruction of the head node. When the head node transmits the data channel to the member UE, it will transmit the control channel + data channel.

[0198] The following takes the interaction between a member node and a head node as an example to introduce the communication method provided in the above embodiment. Fig.21 As shown, including:

[0199] S2101. The head node sends a resource configuration signaling of a physical channel to a member node of a D2D communication system.

[0200] S2102: The member node receives a resource configuration signaling for a physical channel sent by a head node in the same D2D communication system.

[0201] S2103. The member node determines the channel resources corresponding to the physical channel based on the resource configuration signaling.

[0202] S2104. The member node performs data transmission on the channel resources corresponding to the physical channel.

[0203] It is understandable that, in order to implement the above functions, the communication device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the algorithm steps of each example described in the embodiments of the present disclosure, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0204] The embodiments of the present disclosure may divide the functional modules of the communication device according to the above method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module. The above integrated modules may be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0205] Fig. 22 A communication device according to an embodiment of the present disclosure is shown in FIG. Figure 1 The communication device can be applied to a member node in a D2D communication system and perform the above Figure 6 The communication method shown, and Fig.21 Implementation example of the member node side. Fig. 22 As shown, the communication device 2200 includes: a processing module 2201 and a transmission module 2202.

[0206] The processing module 2201 is used to determine the channel resources corresponding to the physical channel based on the resource configuration signaling, and the physical channel includes at least one of the control channel, the data channel and the feedback channel. The transmission module 2202 is used to transmit data on the channel resources corresponding to the physical channel.

[0207] In some embodiments, the resource configuration signaling includes: first resource configuration signaling of a data channel, the first resource configuration signaling including at least one of the following:

[0208] The time domain resources of the data channel include all time domain continuous symbols between the first symbol and the last symbol in a time slot;

[0209] The time domain resources of the data channel include the remaining time domain continuous symbols not occupied by the control channel among all time domain continuous symbols between the first symbol and the last symbol in a time slot;

[0210] The time domain resources of the data channel include the remaining time domain continuous symbols not occupied by the control channel and the feedback channel among all the time domain continuous symbols between the first symbol and the last symbol in a time slot;

[0211] The frequency domain resources of the data channel include all physical resource blocks in a communication frequency domain bandwidth;

[0212] The frequency domain resources of the data channel include the remaining physical resource blocks not occupied by the control channel among all the physical resource blocks in a communication frequency domain bandwidth;

[0213] The frequency domain resources of the data channel include the remaining physical resource blocks not occupied by the control channel and the feedback channel in all physical resource blocks in a communication frequency domain bandwidth;

[0214] The frequency domain resources of the data channel include all physical resource blocks in a communication frequency domain bandwidth on at least one symbol in which the time domain resources of the data channel and the time domain resources of the control channel do not overlap in a time slot;

[0215] The frequency domain resources of the data channel include the remaining physical resource blocks not occupied by the control channel in a communication frequency domain bandwidth on at least one symbol where the data channel and the control channel overlap in the time domain resources in a time slot;

[0216] The frequency domain resources of the data channel include the remaining physical resource blocks not occupied by the control channel and the feedback channel in a communication frequency domain bandwidth on at least one symbol where the time domain resources of the data channel and the control channel overlap in a time slot.

[0217] In some embodiments, the resource configuration signaling includes: second resource configuration signaling of a control channel, the second resource configuration signaling includes at least one of the following:

[0218] The time domain resources of the control channel include part of the time domain continuous symbols after the first symbol in a time slot;

[0219] The frequency domain resources of the control channel include all physical resource blocks in a communication frequency domain bandwidth;

[0220] The frequency domain resources of the control channel include some frequency domain continuous or discrete physical resource blocks among all physical resource blocks in a communication frequency domain bandwidth.

[0221] In some embodiments, the frequency domain resources in the second resource configuration signaling correspond to multiple control channels, and the multiple control channels satisfy at least one of the following:

[0222] The time domain resources of multiple control channels are the same;

[0223] The multiple control channels are divided into M types, each type of control channels includes at least one control channel, and the number of physical resource blocks of each control channel in the frequency domain in the same type of control channels is the same;

[0224] The frequency domain resources of different control channels are frequency-divided.

[0225] In some embodiments, the resource configuration signaling includes: third resource configuration signaling of the feedback channel, and the third resource configuration signaling includes at least one of the following:

[0226] The time domain resource of the feedback channel includes a portion of continuous symbols in the time domain before the last symbol in a time slot;

[0227] The time domain resources of the feedback channel are the same as the time domain resources of the control channel;

[0228] The time slot period of the feedback channel;

[0229] The frequency domain resources of the feedback channel include all physical resource blocks in a communication frequency domain bandwidth;

[0230] The frequency domain resources of the feedback channel include some frequency domain continuous or discrete physical resource blocks among all physical resource blocks in a communication frequency domain bandwidth.

[0231] In some embodiments, the frequency domain resources in the third resource configuration signaling correspond to multiple feedback channels, and the multiple feedback channels satisfy at least one of the following:

[0232] The multiple feedback channels are divided into N types, each type of feedback channel includes at least one feedback channel, and the number of physical resource blocks of each feedback channel in the frequency domain in the same type of feedback channels is the same;

[0233] The time domain resources of multiple feedback channels are the same;

[0234] The frequency domain resources of different feedback channels are frequency-divided.

[0235] In some embodiments, when the physical channel includes: a control channel and a feedback channel, and the time domain resources of the feedback channel are the same as the time domain resources of the control channel, the frequency domain resources of the feedback channel and the frequency domain resources of the control channel are frequency-divided.

[0236] In some embodiments, the time-frequency domain resources of the control channel in the current time slot are associated with the time-frequency domain resources of the feedback channel in the first type of feedback channels of N types in a future time slot after a determined time slot interval. One control channel corresponds to one or more feedback channels, and the frequency domain resources of the feedback channels corresponding to different control channels are frequency-divided.

[0237] In some embodiments, the control information in the control channel indicates at least one of the following:

[0238] A time slot offset between a time slot position of at least one feedback channel of the second type of feedback channels among the N types and a time slot position of the control channel;

[0239] Frequency domain resources of at least one feedback channel of the second type of feedback channels among the N types in a designated time slot;

[0240] A time domain resource index of at least one feedback channel of the second type of feedback channels among the N types;

[0241] A frequency domain resource index of at least one feedback channel of the second type of feedback channels among the N types;

[0242] A resource index of at least one feedback channel of the second type of feedback channels among the N types.

[0243] In some embodiments, the transmission energy of the first symbol in a time slot satisfies at least one of the following:

[0244] The transmission energy of the first symbol in the time slot is equal to the transmission energy of the first symbol in the time domain resource of the control channel;

[0245] The transmission energy of the first symbol in the time slot is equal to the transmission energy of the first symbol in the time domain resource of the feedback channel;

[0246] The transmission energy of the first symbol in the time slot is equal to the transmission energy of the first symbol in the time domain resources of the data channel that does not overlap with the time domain resources of the control channel;

[0247] The transmission energy of the first symbol in a time slot is equal to the transmission energy of the symbol with the largest transmission energy in the time slot except the first symbol.

[0248] In some embodiments, the first symbol in a time slot satisfies at least one of the following:

[0249] The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the second symbol in the time slot;

[0250] The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the first symbol in the time domain resources of the data channel in the time slot that do not overlap with the time domain resources of the control channel;

[0251] The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the first symbol in the time domain resources of the control channel in the time slot;

[0252] The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the first symbol in the time domain resources of the feedback channel in the time slot;

[0253] The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the symbol with the largest transmission energy except the first symbol in the time slot.

[0254] In some embodiments, the resource configuration signaling is configured by a head node in the D2D communication system for a member node.

[0255] Fig.23 A communication device according to an embodiment of the present disclosure is shown in FIG. Figure 2 The communication device can be applied to the head node in the D2D communication system and perform the above Fig. 20 The communication method shown, and Fig.21 An embodiment of the second node side in FIG. Fig.23 As shown, the communication device 2300 includes: a sending module 2301.

[0256] The sending module 2301 is used to send resource configuration signaling of a physical channel to a member node in the D2D communication system, where the physical channel includes at least one of a control channel, a data channel and a feedback channel.

[0257] In some embodiments, the resource configuration signaling includes: a first resource configuration signaling for a data channel, a second resource configuration signaling for a control channel, and a third resource configuration signaling for a feedback channel.

[0258] In some embodiments, the number of member nodes is multiple, and the multiple member nodes satisfy at least one of the following:

[0259] The resource configuration signaling corresponding to all member nodes is the same;

[0260] The resource configuration signaling corresponding to different member nodes is different;

[0261] The resource configuration signaling corresponding to some member nodes among all the member nodes is the same.

[0262] In the case of implementing the functions of the above integrated modules in the form of hardware, the embodiment of the present disclosure provides another possible structural schematic diagram of the communication device involved in the above embodiment. Figure 3 .like Fig.24 As shown, the communication device 2400 includes: a processor 2402 and a bus 2404. Optionally, the communication device may further include a memory 2401; optionally, the communication device may further include a communication interface 2403.

[0263] The processor 2402 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 2402 may 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 may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 2402 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0264] The communication interface 2403 is used to connect with other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0265] The memory 2401 may 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, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0266] As a possible implementation, the memory 2401 may exist independently of the processor 2402, and the memory 2401 may be connected to the processor 2402 via a bus 2404 to store instructions or program codes. When the processor 2402 calls and executes the instructions or program codes stored in the memory 2401, the communication method provided in the embodiment of the present disclosure can be implemented.

[0267] In another possible implementation, the memory 2401 may also be integrated with the processor 2402 .

[0268] The bus 2404 may be an extended industry standard architecture (EISA) bus, etc. The bus 2404 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.24 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0269] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium), in which computer program instructions are stored. When the computer program instructions are executed on a computer, the computer executes the communication method described in any of the above embodiments.

[0270] Exemplarily, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or magnetic tapes, etc.), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). The various computer-readable storage media described in the present disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0271] An embodiment of the present disclosure provides a computer program product including instructions. When the computer program product is run on a computer, the computer is enabled to execute the communication method described in any one of the above embodiments.

[0272] The above is only a specific implementation 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 in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: A member node applied in a device-to-device D2D communication system includes: Determine a channel resource corresponding to a physical channel based on the resource configuration signaling, wherein the physical channel includes at least one of a control channel, a data channel, and a feedback channel; Data transmission is performed on the channel resources corresponding to the physical channel.

2. The method according to claim 1, characterized in that The resource configuration signaling includes: first resource configuration signaling of the data channel, and the first resource configuration signaling includes at least one of the following: The time domain resources of the data channel include all time domain continuous symbols between the first symbol and the last symbol in a time slot; The time domain resources of the data channel include the remaining time domain continuous symbols not occupied by the control channel among all time domain continuous symbols between the first symbol and the last symbol in a time slot; The time domain resources of the data channel include the remaining time domain continuous symbols not occupied by the control channel and the feedback channel among all time domain continuous symbols between the first symbol and the last symbol in a time slot; The frequency domain resources of the data channel include all physical resource blocks in a communication frequency domain bandwidth; The frequency domain resources of the data channel include the remaining physical resource blocks not occupied by the control channel in all physical resource blocks in a communication frequency domain bandwidth; The frequency domain resources of the data channel include the remaining physical resource blocks not occupied by the control channel and the feedback channel in all physical resource blocks in a communication frequency domain bandwidth; The frequency domain resources of the data channel include all physical resource blocks in a communication frequency domain bandwidth on at least one symbol in a time slot where the time domain resources of the data channel and the time domain resources of the control channel do not overlap; The frequency domain resources of the data channel include the remaining physical resource blocks not occupied by the control channel in a communication frequency domain bandwidth on at least one symbol where the data channel and the control channel overlap in the time domain resources in a time slot; The frequency domain resources of the data channel include the remaining physical resource blocks not occupied by the control channel and the feedback channel in a communication frequency domain bandwidth on at least one symbol where the time domain resources of the data channel and the control channel overlap in a time slot.

3. The method according to claim 1, characterized in that: The resource configuration signaling includes: second resource configuration signaling of the control channel, and the second resource configuration signaling includes at least one of the following: The time domain resources of the control channel include a portion of continuous symbols in the time domain after the first symbol in a time slot; The frequency domain resources of the control channel include all physical resource blocks in a communication frequency domain bandwidth; The frequency domain resources of the control channel include some frequency domain continuous or discrete physical resource blocks among all physical resource blocks in a communication frequency domain bandwidth.

4. The method according to claim 3, characterized in that The frequency domain resources in the second resource configuration signaling correspond to multiple control channels, and the multiple control channels satisfy at least one of the following: The time domain resources of the multiple control channels are the same; The multiple control channels are divided into M types, each type of control channels includes at least one control channel, and the number of physical resource blocks of each control channel in the frequency domain in the same type of control channels is the same; The frequency domain resources of different control channels are frequency divided.

5. The method according to claim 1, characterized in that The resource configuration signaling includes: a third resource configuration signaling of the feedback channel, and the third resource configuration signaling includes at least one of the following: The time domain resources of the feedback channel include a portion of continuous symbols in the time domain before the last symbol in a time slot; The time domain resource of the feedback channel is the same as the time domain resource of the control channel; A time slot period of the feedback channel; The frequency domain resources of the feedback channel include all physical resource blocks in a communication frequency domain bandwidth; The frequency domain resources of the feedback channel include some frequency domain continuous or discrete physical resource blocks among all physical resource blocks in a communication frequency domain bandwidth.

6. The method according to claim 5, characterized in that The frequency domain resources in the third resource configuration signaling correspond to multiple feedback channels, and the multiple feedback channels satisfy at least one of the following: The multiple feedback channels are divided into N types, each type of feedback channel includes at least one feedback channel, and the number of physical resource blocks of each feedback channel in the frequency domain is the same in the same type of feedback channels; The time domain resources of the multiple feedback channels are the same; The frequency domain resources of different feedback channels are frequency-divided.

7. The method according to claim 5, characterized in that When the physical channel includes: the control channel and the feedback channel, and the time domain resources of the feedback channel are the same as the time domain resources of the control channel, the frequency domain resources of the feedback channel and the frequency domain resources of the control channel are frequency-divided.

8. The method according to claim 6, characterized in that There is an association relationship between the time-frequency domain resources of the control channel in the current time slot and the time-frequency domain resources of the feedback channel in the first type of feedback channels among the N types in a future time slot after a determined time slot interval. One control channel corresponds to one or more feedback channels, and the frequency domain resources of the feedback channels corresponding to different control channels are frequency-divided.

9. The method according to claim 6, characterized in that The control information in the control channel indicates at least one of the following: a timeslot offset between a timeslot position of at least one feedback channel of the second type of feedback channels among the N types and a timeslot position of the control channel; Frequency domain resources of at least one feedback channel of the second type of feedback channels among the N types in a designated time slot; a time domain resource index of at least one feedback channel of the second type of feedback channels among the N types; a frequency domain resource index of at least one feedback channel of the second type of feedback channels among the N types; A resource index of at least one feedback channel of the second type of feedback channels among the N types.

10. The method according to claim 2 or 3, characterized in that: The transmission energy of the first symbol in the time slot satisfies at least one of the following: The transmission energy of the first symbol in the time slot is equal to the transmission energy of the first symbol in the time domain resource of the control channel; The transmission energy of the first symbol in the time slot is equal to the transmission energy of the first symbol in the time domain resource of the feedback channel; The transmission energy of the first symbol in the time slot is equal to the transmission energy of the first symbol in the time domain resources of the data channel that does not overlap with the time domain resources of the control channel; The transmission energy of the first symbol in the time slot is equal to the transmission energy of the symbol with the largest transmission energy in the time slot except the first symbol.

11. The method according to claim 2 or 3, characterized in that: The first symbol in the time slot satisfies at least one of the following: The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the second symbol in the time slot; The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the first symbol in the time domain resources of the data channel in the time slot that do not overlap with the time domain resources of the control channel; The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the first symbol in the time domain resources of the control channel in the time slot; The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the first symbol in the time domain resource of the feedback channel in the time slot The information on all resource elements on the first symbol in the time slot is the same as the information on all resource elements on the symbol with the largest transmission energy except the first symbol in the time slot.

12. The method according to claim 1, characterized in that The resource configuration signaling is configured by the head node in the D2D communication system for the member node.

13. A communication method, characterized in that: The head node used in the D2D communication system includes: A resource configuration signaling of a physical channel is sent to a member node in the D2D communication system, where the physical channel includes at least one of a control channel, a data channel, and a feedback channel.

14. The method according to claim 13, characterized in that The resource configuration signaling includes: a first resource configuration signaling of the data channel, a second resource configuration signaling of the control channel, and a third resource configuration signaling of the feedback channel.

15. The method according to claim 14, characterized in that The number of the member nodes is multiple, and the multiple member nodes satisfy at least one of the following: The resource configuration signaling corresponding to all the member nodes is the same; The resource configuration signaling corresponding to different member nodes is different; The resource configuration signaling corresponding to some of the member nodes in all the member nodes is the same.

16. A communication device, characterized in that: include: Memory and processor; Memory and processor coupling; The memory is used to store instructions executable by the processor; When the processor executes the instructions, the method according to any one of claims 1 to 15 is performed.

17. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer is enabled to execute the method according to any one of claims 1 to 15.

18. A computer program product, characterized in that The computer program product comprises computer program instructions, which, when executed, implement the method according to any one of claims 1 to 15.

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