Information transmission method, device and system

Abstract

This article discloses an information transmission method, device and system. The information transmission method in an embodiment of the present invention includes: a first communication node obtains a control channel description list, the control channel description list includes N sets of control channel description information, wherein N is a positive integer, and each set of control channel description information includes: one or more of control channel configuration information, reference signal configuration information, link resource configuration information, working bandwidth configuration information, puncturing configuration information, frequency hopping configuration information, transmission time interval length configuration information, power control configuration information and beam configuration information; the first communication node sends the control channel description list to the second communication node. The embodiment of the present invention solves the problem of single design of control channels in existing LTE technologies and poor flexibility, scalability and adaptability by reasonably designing a standard solution for control channels in 5G systems.

Description

[0001] This application is a divisional application of the invention patent application with application number 201610165992.2 filed on March 22, 2016, and invention name “A method, device and system for information transmission”. Technical Field

[0002] The embodiments of the present invention relate to, but are not limited to, the field of wireless communication technology, and in particular to an information transmission method, device, and system. Background Art

[0003] With the development of wireless communication technology and the increasing demand for communication from users, in order to meet higher, faster and newer communication needs, the fifth generation mobile communication (5th Generation, abbreviated as: 5G) technology has become the trend of future network development.

[0004] Existing Long Term Evolution (LTE) or LTE-Advanced (LTE-A) systems perform data transmission based on dynamic scheduling of each subframe, meaning that each subframe can transmit a different control channel. However, the design of the LTE / LTE-A standard control channel is very simple and inflexible. When the types of services that need to be supported have very different requirements for latency and reliability, the system efficiency will be significantly reduced. With the rise of smart terminals and the enrichment of wireless data application services, the number of data users in wireless communication systems has increased significantly, and data content is no longer limited to traditional text or images. In the future, users will have more and more demand for multimedia services such as high-definition video and mobile TV, resulting in an explosive growth trend in wireless network traffic. 5G technology is designed to address the challenges brought by differentiated performance indicators in diverse application scenarios. Different application scenarios face different performance challenges. User experience rate, traffic density, latency, energy efficiency and number of connections may all become challenging indicators in different scenarios. Based on the business needs and challenges of mobile Internet and Internet of Things as the main application scenarios, four major 5G technical scenarios can be summarized: continuous wide area coverage, high-capacity hotspots, low-power large connections, and low latency and high reliability.

[0005] Considering that 5G needs to support a variety of applications with different Quality of Service (QoS) requirements, the control channel design scheme in existing LTE technology cannot effectively meet the flexibility requirements of 5G system design. Furthermore, the scalability and adaptability of the control channel in existing technologies are poor, which will seriously reduce the system's spectrum efficiency and increase system maintenance costs. In addition, terminal devices with multiple service capabilities can only determine the current system's support for different services through blind detection, which greatly affects system performance, increases terminal device power consumption and control overhead, and also has poor "forward compatibility" of the system. Summary of the Invention

[0006] In order to solve the above technical problems, the embodiments of the present invention provide an information transmission method, device and system. The embodiments of the present invention solve the problems of the single design of the control channel in the existing LTE technology and poor flexibility, scalability and adaptability by reasonably designing a standard solution for the control channel in the 5G system.

[0007] In a first aspect, an embodiment of the present invention provides an information transmission method, including:

[0008] The first communication node obtains a control channel description list, where the control channel description list includes N sets of control channel description information, where N is a positive integer, and each set of the control channel description information includes: one or more of control channel configuration information, reference signal configuration information, link resource configuration information, operating bandwidth configuration information, puncturing configuration information, frequency hopping configuration information, transmission time interval length configuration information, power control configuration information, and beam configuration information;

[0009] The first communication node sends the control channel description list to the second communication node.

[0010] In a first possible implementation of the first aspect, the control channel configuration information includes: one or more of: resource location, subcarrier spacing, waveform, transmission period, effective time length, resource mapping method, spread spectrum codeword, number of information bits, modulation and coding method, code rate, multi-antenna transmission mode, number of repetitions and repetition period; wherein, the resource location includes the starting resource location and / or the ending resource location.

[0011] According to the first possible implementation manner of the first aspect, in a second possible implementation manner, the resource position refers to the relative position of each set of the control channels within a transmission time interval corresponding to the control channel.

[0012] In a third possible implementation manner of the first aspect, the control channel configuration information includes: one or more of: synchronization channel configuration information, broadcast channel configuration information, access parameter configuration information, resource allocation channel configuration information, and feedback channel configuration information.

[0013] According to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the synchronization channel configuration information includes: one or more of: a resource location, a transmission period, a resource mapping mode, and a synchronization sequence; or,

[0014] The broadcast channel configuration information includes: one or more of resource location, transmission period, resource mapping mode, effective information length and information type; or,

[0015] The access parameter configuration information includes: one or more of resource location, transmission period, resource mapping mode and access sequence set; or,

[0016] The feedback channel configuration information includes one or more of: a positive acknowledgement or negative acknowledgement ACK / NACK feedback interval, and a channel state information feedback mode.

[0017] In a fifth possible implementation manner of the first aspect, the reference signal configuration information includes: one or more of: a resource location, a sequence set, and a measurement window.

[0018] According to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner, the reference signal configured by the reference signal configuration information is used to demodulate each set of the control channels; or,

[0019] The reference signal configured by the reference signal configuration information is used for beam direction training.

[0020] In a seventh possible implementation manner of the first aspect, the link resource configuration information includes: the number of each set of control channels in its corresponding transmission time interval, and one or more of the transmission directions of each set of control channels.

[0021] According to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner, each set of the control channels in the transmission time interval includes: a downlink control channel and / or an uplink control channel.

[0022] In a ninth possible implementation manner of the first aspect, the working bandwidth configuration information is used to indicate a frequency domain resource range for each set of control channel scheduling.

[0023] According to the ninth possible implementation manner of the first aspect, in a tenth possible implementation manner, a frequency domain resource range scheduled by each set of the control channels is greater than or equal to a frequency domain resource range used to transmit the control channels.

[0024] In an eleventh possible implementation manner of the first aspect, the transmission time interval length configuration information includes a time length corresponding to each set of the control channels.

[0025] According to the eleventh possible implementation manner of the first aspect, in a twelfth possible implementation manner, the transmission time interval length configured by the transmission time interval length configuration information is in units of basic resource units.

[0026] In a thirteenth possible implementation manner of the first aspect, the puncturing configuration information is used to indicate whether the second communication node uses information on resources used for transmitting X sets of control channels for decoding when the data transmission resources used by the second communication node include resources used for transmitting Y sets of control channels, where the X sets of control channels belong to the Y sets of control channels, X is a positive integer less than or equal to N, and Y is a positive integer greater than or equal to X and less than or equal to N; or

[0027] The frequency hopping configuration information includes: one or more of a frequency hopping resource, a frequency domain hopping interval, and a time domain hopping interval; or,

[0028] The power control configuration information includes: one or more of a downlink transmit power control parameter value, an uplink transmit power control parameter value, and an uplink power control mode; or,

[0029] The beam configuration information includes: one or more of the number of transmit beams, the number of receive beams, the transmit beam switching period, the receive beam switching period and the beam training mode.

[0030] According to the first aspect or any one of the first to thirteenth possible implementations of the first aspect, in the fourteenth possible implementation, the control channel description list further includes sending cycle information of the control channel description list.

[0031] According to the first aspect, any one of the first to thirteenth possible implementations of the first aspect, in the fifteenth possible implementation, any two sets of frequency domain resources scheduled by the control channels in the description information of the N sets of control channels are completely different or partially overlapping.

[0032] According to the first aspect, or any one of the first to thirteenth possible implementations of the first aspect, in a sixteenth possible implementation, the control channel description list further includes type information of M types of terminal devices, where M is a positive integer.

[0033] According to the sixteenth possible implementation manner of the first aspect, in the seventeenth possible implementation manner, the correspondence between the types of the M types of terminal devices and the description information of the N sets of control channels is: each type of the terminal device corresponds to one or more sets of description information of the control channels.

[0034] According to the first aspect, or any one of the first to thirteenth possible implementations of the first aspect, in an eighteenth possible implementation, a carrier frequency used by the first communication node to send the control channel description list is different from a carrier frequency used by the N sets of control channels; or

[0035] Each set of the control channels is sent by the first communication node or other communication nodes.

[0036] According to the first aspect and any one of the first to thirteenth possible implementation manners of the first aspect, in a nineteenth possible implementation manner, the first communication node acquiring the control channel description list includes:

[0037] The first communication node generates the control channel description list; or,

[0038] The first communication node receives the control channel description list sent by other communication nodes.

[0039] According to the first aspect or any one of the first to thirteenth possible implementation manners of the first aspect, in a twentieth possible implementation manner, the method further includes:

[0040] The first communication node sends control channel type indication information to the second communication node, and the control channel type indication information is used to instruct the second communication node to use the description information of the specified n sets of control channels among the description information of the N sets of control channels to perform control channel and / or data channel processing, where n is a positive integer less than or equal to N.

[0041] According to the first aspect and any one of the first to thirteenth possible implementation manners of the first aspect, in a twenty-first possible implementation manner, before the first communication node sends the control channel description list to the second communication node, further comprising:

[0042] The first communication node receives a random access signal sent by the second communication node; or

[0043] The first communication node receives a control channel description list request message sent by the second communication node.

[0044] According to the first aspect and any one of the first to thirteenth possible implementation manners of the first aspect, in a twenty-second possible implementation manner, before the first communication node sends the control channel description list to the second communication node, further comprising:

[0045] The first communication node obtains resources for sending the control channel description list through competition.

[0046] According to the first aspect and any one of the first to thirteenth possible implementation manners of the first aspect, in a twenty-third possible implementation manner, before the first communication node sends the control channel description list to the second communication node, further comprising:

[0047] The first communication node sends a first notification message to the second communication node through signaling, where the first notification message instructs the first communication node to determine to send the control channel description list.

[0048] According to the twenty-third possible implementation manner of the first aspect, in a twenty-fourth possible implementation manner, the signaling is carried in a physical broadcast control channel.

[0049] According to the first aspect and any one of the first to thirteenth possible implementations of the first aspect, in a twenty-fifth possible implementation, after the first communication node sends the control channel description list to the second communication node, the method further includes:

[0050] The first communication node sends a second notification message to the second communication node through signaling, where the second notification message indicates whether the control channel description list is updated.

[0051] According to the first aspect or any one of the first to thirteenth possible implementation manners of the first aspect, in a twenty-sixth possible implementation manner, the method further includes:

[0052] The first communication node sends a synchronization channel to the second communication node, and the resources used by the first communication node to send the control channel description list are the same as the resources used to send the synchronization channel.

[0053] In a second aspect, an embodiment of the present invention provides an information transmission method, including:

[0054] The second communication node receives a control channel description list sent by the first communication node, where the control channel description list includes N sets of control channel description information, where N is a positive integer, and each set of the control channel description information includes: one or more of control channel configuration information, reference signal configuration information, link resource configuration information, operating bandwidth configuration information, puncturing configuration information, frequency hopping configuration information, transmission time interval length configuration information, power control configuration information, and beam configuration information;

[0055] The second communication node performs control channel and / or data channel processing according to the control channel description list.

[0056] In a first possible implementation manner of the second aspect, the control channel configuration information includes: one or more of: resource location, subcarrier spacing, waveform, transmission period, effective time length, resource mapping mode, spread spectrum codeword, number of information bits, modulation and coding mode, code rate, multi-antenna transmission mode, number of repetitions, and repetition period; wherein the resource location includes a starting resource location and / or an ending resource location; or,

[0057] The control channel configuration information includes: one or more of synchronization channel configuration information, broadcast channel configuration information, access parameter configuration information, resource allocation channel configuration information and feedback channel configuration information.

[0058] According to the first possible implementation manner of the second aspect, in the second possible implementation manner, the synchronization channel configuration information includes: one or more of: a resource location, a transmission period, a resource mapping mode, and a synchronization sequence; or,

[0059] The broadcast channel configuration information includes: one or more of resource location, transmission period, resource mapping mode, effective information length and information type; or,

[0060] The access parameter configuration information includes: one or more of resource location, transmission period, resource mapping mode and access sequence set; or,

[0061] The feedback channel configuration information includes one or more of: a positive acknowledgement or negative acknowledgement ACK / NACK feedback interval, and a channel state information feedback mode.

[0062] In a third possible implementation manner of the second aspect, the reference signal configuration information includes: one or more of a resource location, a sequence set, and a measurement window; or,

[0063] The link resource configuration information includes: the number of each set of the control channels in a transmission time interval, and one or more of the transmission directions of each set of the control channels; or,

[0064] The working bandwidth configuration information is used to indicate a frequency domain resource range for each set of the control channel scheduling, wherein the frequency domain resource range for each set of the control channel scheduling is greater than or equal to the frequency domain resource range used to transmit the control channel; or,

[0065] The transmission time interval length configuration information includes the time length corresponding to each set of the control channels; or,

[0066] The puncturing configuration information is used to instruct the second communication node whether to use information on the resources used for transmitting X sets of control channels for decoding when the data transmission resources used by the second communication node include resources used by Y sets of control channels, where the X sets of control channels belong to the Y sets of control channels, X is a positive integer less than or equal to N, and Y is a positive integer greater than or equal to X and less than or equal to N; or

[0067] The frequency hopping configuration information includes: one or more of a frequency hopping resource, a frequency domain hopping interval, and a time domain hopping interval; or,

[0068] The power control configuration information includes: one or more of a downlink transmit power control parameter value, an uplink transmit power control parameter value, and an uplink power control mode; or,

[0069] The beam configuration information includes: one or more of the number of transmit beams, the number of receive beams, the transmit beam switching period, the receive beam switching period and the beam training mode.

[0070] According to the second aspect and any one of the first to third possible implementation manners of the second aspect, in a fourth possible implementation manner, the control channel description list further includes transmission cycle information of the control channel description list; or,

[0071] The control channel description list further includes type information of M types of terminal devices, where M is a positive integer, and the correspondence between the types of the M types of terminal devices and the N sets of description information of the control channels is: each type of the terminal device corresponds to one or more sets of description information of the control channels; or

[0072] Frequency domain resources scheduled by any two sets of the control channel description information in the N sets of control channel description information are completely different or partially overlapped.

[0073] According to the second aspect, or any one of the first to third possible implementations of the second aspect, in a fifth possible implementation, before the second communication node performs control channel and / or data channel processing according to the control channel description list, further comprising:

[0074] The second communication node receives the control channel type indication information sent by the first communication node;

[0075] The second communication node performs control channel and / or data channel processing according to the control channel description list, including:

[0076] The second communication node uses the description information of designated n sets of control channels among the description information of the N sets of control channels to perform control channel and / or data channel processing, where n is a positive integer less than or equal to N.

[0077] According to the second aspect and any one of the first to third possible implementations of the second aspect, in a sixth possible implementation, before the second communication node receives the control channel description list sent by the first communication node, further comprising:

[0078] The second communication node sends a random access signal to the first communication node; or,

[0079] The second communication node sends a control channel description list request message to the first communication node; or,

[0080] The second communication node obtains the system operating bandwidth.

[0081] According to the second aspect and any one of the first to third possible implementations of the second aspect, in a seventh possible implementation, before the second communication node receives the control channel description list sent by the first communication node, further comprising:

[0082] The second communication node receives a first notification message sent by the first communication node through signaling, where the first notification message instructs the first communication node to determine to send the control channel description list.

[0083] According to the second aspect and any one of the first to third possible implementations of the second aspect, in an eighth possible implementation, after the second communication node receives the control channel description list sent by the first communication node, further comprising:

[0084] The second communication node receives a second notification message sent by the first communication node through signaling, where the second notification message indicates whether the control channel description list is updated.

[0085] According to the second aspect or any one of the first to third possible implementation manners of the second aspect, in a ninth possible implementation manner, the method further includes:

[0086] The second communication node receives the synchronization channel sent by the first communication node, and the resources used by the control channel description list are the same as the resources used by the synchronization channel.

[0087] According to the second aspect and any one of the first to third possible implementations of the second aspect, in a tenth possible implementation, the second communication node that receives the control channel description list is a preset type of second communication node set.

[0088] According to the tenth possible implementation manner of the second aspect, in the eleventh possible implementation manner, the preset type of second communication node set is a second communication node set supporting machine type communication, or a second communication node set supporting low-latency and high-reliability machine communication, or a second communication node set supporting low-rate machine communication, or a second communication node set supporting mobile broadband.

[0089] In a third aspect, an embodiment of the present invention provides an information transmission device, which is provided in a first communication node, and the information transmission device includes:

[0090] an acquisition module configured to acquire a control channel description list, the control channel description list including N sets of control channel description information, where N is a positive integer, and each set of the control channel description information includes: one or more of control channel configuration information, reference signal configuration information, link resource configuration information, operating bandwidth configuration information, puncturing configuration information, frequency hopping configuration information, transmission time interval configuration information, power control configuration information, and beam configuration information;

[0091] The sending module connected to the acquiring module is configured to send the control channel description list acquired by the acquiring module to the second communication node.

[0092] In a first possible implementation manner of the third aspect, the control channel configuration information includes: one or more of: resource location, subcarrier spacing, waveform, transmission period, effective time length, resource mapping mode, spread spectrum codeword, number of information bits, modulation and coding mode, code rate, multi-antenna transmission mode, number of repetitions, and repetition period; wherein the resource location includes a starting resource location and / or an ending resource location; or,

[0093] The control channel configuration information includes: one or more of synchronization channel configuration information, broadcast channel configuration information, access parameter configuration information, resource allocation channel configuration information and feedback channel configuration information.

[0094] According to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner, the control channel description list further includes type information of M types of terminal devices, where M is a positive integer, and the correspondence between the types of the M types of terminal devices and the N sets of description information of the control channels is: each type of the terminal device corresponds to one or more sets of description information of the control channels; or,

[0095] Frequency domain resources scheduled by any two sets of the control channel description information in the N sets of control channel description information are completely different or partially overlapped.

[0096] According to the third aspect or the first possible implementation manner of the third aspect, in a third possible implementation manner, a carrier frequency used by the sending module to send the control channel description list is different from a carrier frequency used by the N sets of control channels; or

[0097] Each set of the control channels is sent by a sending module of the first communication node or another communication node.

[0098] According to the third aspect or the first possible implementation manner of the third aspect, in a fourth possible implementation manner, the acquisition module includes: a generating unit or a receiving unit;

[0099] Wherein, the generating unit is configured to generate the control channel description list;

[0100] The receiving unit is configured to receive the control channel description list sent by other communication nodes.

[0101] According to the third aspect or the first possible implementation of the third aspect, in a fifth possible implementation, the sending module is further configured to be able to send control channel type indication information to the second communication node, and the control channel type indication information is used to instruct the second communication node to use the description information of the specified n sets of control channels among the description information of the N sets of control channels to perform control channel and / or data channel processing, where n is a positive integer less than or equal to N.

[0102] According to the third aspect or the first possible implementation of the third aspect, in a sixth possible implementation, the information transmission device also includes: a receiving module connected to the sending module, configured to receive a random access signal sent by the second communication node, or receive a control channel description list request message sent by the second communication node before the sending module sends the control channel description list to the second communication node.

[0103] According to the third aspect or the first possible implementation of the third aspect, in a seventh possible implementation, the acquisition module is further configured to acquire resources for sending the control channel description list through competition before the sending module sends the control channel description list to the second communication node.

[0104] According to the third aspect or the first possible implementation manner of the third aspect, in an eighth possible implementation manner, the sending module is further configured to be able to send a first notification message to the second communication node through signaling before sending the control channel description list to the second communication node, where the first notification message indicates that the first communication node determines to send the control channel description list; or,

[0105] The sending module is further configured to, after sending the control channel description list to the second communication node, send a second notification message to the second communication node through signaling, wherein the second notification message indicates whether the control channel description list is updated; or

[0106] The sending module is further configured to be able to send a synchronization channel to the second communication node, and the resources used by the sending module to send the control channel description list are the same as the resources used to send the synchronization channel.

[0107] In a fourth aspect, an embodiment of the present invention provides an information transmission device, which is provided in a second communication node, and the information transmission device includes:

[0108] a receiving module, configured to receive a control channel description list sent by the first communication node, the control channel description list including N sets of control channel description information, where N is a positive integer, and each set of the control channel description information includes: one or more of control channel configuration information, reference signal configuration information, link resource configuration information, operating bandwidth configuration information, puncturing configuration information, frequency hopping configuration information, transmission time interval length configuration information, power control configuration information, and beam configuration information;

[0109] The processing module connected to the receiving module is configured to perform control channel and / or data channel processing according to the control channel description list received by the receiving module.

[0110] In a first possible implementation manner of the fourth aspect, the control channel configuration information includes: one or more of: resource location, subcarrier spacing, waveform, transmission period, effective time length, resource mapping mode, spread spectrum codeword, number of information bits, modulation and coding mode, code rate, multi-antenna transmission mode, number of repetitions, and repetition period; wherein the resource location includes a starting resource location and / or an ending resource location; or,

[0111] The control channel configuration information includes: one or more of synchronization channel configuration information, broadcast channel configuration information, access parameter configuration information, resource allocation channel configuration information and feedback channel configuration information.

[0112] According to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the control channel description list further includes type information of M types of terminal devices, where M is a positive integer, and the correspondence between the types of the M types of terminal devices and the N sets of description information of the control channels is: each type of the terminal device corresponds to one or more sets of description information of the control channels; or,

[0113] Frequency domain resources scheduled by any two sets of the control channel description information in the N sets of control channel description information are completely different or partially overlapped.

[0114] According to the fourth aspect or the first possible implementation manner of the fourth aspect, in a third possible implementation manner, the receiving module is further configured to receive control channel type indication information sent by the first communication node before the processing module performs control channel and / or data channel processing according to the control channel description list received by the receiving module;

[0115] The processing module is configured to perform control channel and / or data channel processing according to the control channel description list received by the receiving module, including:

[0116] The system is configured to be able to use description information of designated n sets of control channels among the description information of the N sets of control channels to perform control channel and / or data channel processing, wherein n is a positive integer less than or equal to N.

[0117] According to the fourth aspect or the first possible implementation manner of the fourth aspect, in a fourth possible implementation manner, the information transmission device further includes: a sending module connected to the receiving module, configured to be able to send a random access signal to the first communication node, or send a control channel description list request message to the first communication node before the receiving module receives the control channel description list sent by the first communication node; or

[0118] The information transmission device further includes: an acquisition module connected to the receiving module, configured to acquire the system operating bandwidth before the receiving module receives the control channel description list sent by the first communication node.

[0119] According to the fourth aspect or the first possible implementation manner of the fourth aspect, in a fifth possible implementation manner, the receiving module is further configured to be able to receive a first notification message sent by the first communication node through signaling before receiving the control channel description list sent by the first communication node, wherein the first notification message indicates that the first communication node determines to send the control channel description list; or,

[0120] The receiving module is further configured to receive a second notification message sent by the first communication node through signaling after receiving the control channel description list sent by the first communication node, wherein the second notification message indicates whether the control channel description list is updated; or

[0121] The receiving module is further configured to be able to receive a synchronization channel sent by the first communication node, and the resources used by the control channel description list are the same as the resources used by the synchronization channel.

[0122] According to the fourth aspect or the first possible implementation of the fourth aspect, in a sixth possible implementation, the second communication node to which the receiving module belongs is a preset type of second communication node set, wherein the preset type of second communication node set is a second communication node set supporting machine type communication, or a second communication node set supporting low-latency and high-reliability machine communication, or a second communication node set supporting low-rate machine communication, or a second communication node set supporting mobile broadband.

[0123] In a fifth aspect, an embodiment of the present invention provides an information transmission system, comprising: a first communication node, and a second communication node connected to the first communication node;

[0124] The first communication node is provided with an information transmission device as described in any one of the third aspects above, and the first communication node is provided with an information transmission device as described in any one of the fourth aspects above.

[0125] The information transmission method, device and system provided by the present invention are as follows: a first communication node obtains a control channel description list and sends the control channel description list to a second communication node communicating with the first communication node, so that the second communication node processes subsequent control channel and / or data information according to the control channel description list, wherein the control channel description list includes N sets of control channel description information; the control channel description list in the embodiment of the present invention can be configured according to business needs, realizing the need for flexible design of control channel configuration content, and the embodiment of the present invention solves the problems of single control channel design and poor flexibility, scalability and adaptability in existing LTE technology by reasonably designing a standard solution for control channels in 5G systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0126] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0127] Figure 1 A flowchart of an information transmission method provided by an embodiment of the present invention;

[0128] Figure 2 for Figure 1 A schematic diagram of a control channel description list in the information transmission method provided by the illustrated embodiment;

[0129] Figure 3 A flowchart of another information transmission method provided by an embodiment of the present invention;

[0130] Figure 4 A flowchart of another information transmission method provided by an embodiment of the present invention;

[0131] Figure 5 A flowchart of another information transmission method provided by an embodiment of the present invention;

[0132] Figure 6 A schematic diagram of resource locations in the information transmission method provided by an embodiment of the present invention;

[0133] Figure 7 A schematic diagram of the distribution of a control channel in the information transmission method provided in an embodiment of the present invention;

[0134] Figure 8 A schematic diagram of another distribution of control channels in the information transmission method provided by an embodiment of the present invention;

[0135] Figure 9 A schematic diagram of distribution of another control channel in the information transmission method provided in an embodiment of the present invention;

[0136] Figure 10 A schematic diagram of distribution of another control channel in the information transmission method provided in an embodiment of the present invention;

[0137] Figure 11 A schematic diagram of the effective time length of a control channel description list in the information transmission method provided by an embodiment of the present invention;

[0138] Figure 12 A schematic diagram of a transmission time interval in the information transmission method provided by an embodiment of the present invention;

[0139] Figure 13 A schematic diagram of another transmission time interval in the information transmission method provided by an embodiment of the present invention;

[0140] Figure 14 A schematic diagram of demodulating and opening a control channel in the information transmission method provided by an embodiment of the present invention;

[0141] Figure 15 A flowchart of another information transmission method provided by an embodiment of the present invention;

[0142] Figure 16 A flowchart of another information transmission method provided by an embodiment of the present invention;

[0143] Figure 17 A flowchart of another information transmission method provided by an embodiment of the present invention;

[0144] Figure 18 A flowchart of another information transmission method provided by an embodiment of the present invention;

[0145] Figure 19 A schematic structural diagram of an information transmission device provided by an embodiment of the present invention;

[0146] Figure 20 A schematic structural diagram of another information transmission device provided by an embodiment of the present invention;

[0147] Figure 21 A schematic structural diagram of another information transmission device provided by an embodiment of the present invention;

[0148] Figure 22 A schematic structural diagram of another information transmission device provided by an embodiment of the present invention;

[0149] Figure 23 A schematic structural diagram of an information transmission system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0150] To make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any manner.

[0151] The steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions. Also, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be performed in an order different from that shown here.

[0152] First, we briefly introduce the design of control channels in LTE / LTE-A systems. These include the Physical Downlink Control Channel (PDCCH) and the Enhanced Physical Downlink Control Channel (EPDCCH). The Physical Control Format Indicator Channel (PCFICH) carries information indicating the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols used to transmit the PDCCH in a subframe. The Physical Hybrid-ARQ Indicator Channel (PHICH) carries acknowledgment / negative acknowledgment (ACK / NACK) feedback information for uplink data transmissions. The downlink control channel utilizes blind detection, meaning that the terminal device attempts to demodulate the downlink control channel using different aggregation levels and candidate sets within a specific search space. The existing user equipment (UE)-specific search space is shown in Tables 1 and 2 below. The search space consists of candidate sets corresponding to different aggregation levels. When demodulating a control channel, the UE needs to try to demodulate each candidate set until the demodulation is correct. Otherwise, it is considered that the control channel belonging to it has not been received.

[0153] Table 1 PDCCH search space

[0154]

[0155] Table 2 EPDCCH search space

[0156]

[0157] Table 2 above shows a distributed EPDCCH physical resource block (PRB) concentration case 3. In Tables 1 and 2 above, PDCCH / EPDCCH is used to carry downlink control information (DCI), including uplink and downlink scheduling information, and uplink power control information.

[0158] In existing LTE systems, downlink grants (DL grants) and uplink grants (UL grants) are used to schedule downlink and uplink data transmissions for terminal devices, respectively. These grants, collectively referred to as DCI, are carried on the PDCCH or EPDCCH. Downlink data is carried on the Physical Downlink Shared Channel (PDSCH), and uplink data is carried on the Physical Uplink Shared Channel (PUSCH). In existing LTE systems, the PDCCH uses resources within the first 1-4 Orthogonal Frequency Division Multiplexing (OFDM) symbols of the system bandwidth, with the Control Channel Element (CCE) as the basic resource aggregation granularity, and uses transmit diversity. The EPDCCH uses resources within a portion of the PRBs within the system bandwidth, with the Enhanced Control Channel Element (ECCE) as the basic resource aggregation granularity, and uses either centralized or distributed transmission. It can be seen that the design of the LTE standard control channel is very simple and has poor flexibility. When the types of services to be supported have very different requirements for latency and reliability, the system efficiency will be significantly reduced.

[0159] The above background information has already demonstrated that wireless network traffic is currently experiencing explosive growth. Specifically, according to market forecasts, wireless data services will grow 500-1000 times over the next 10 years, with an average annual growth of 1.6-2 times. This places higher demands on the network capacity of wireless communication systems. For wireless network applications in 2020 and beyond, mobile Internet and Internet of Things services will become the primary drivers of mobile communications development. 5G technology will meet the diverse service needs of people in various areas, including living, working, leisure, and transportation. Even in densely populated residential areas, offices, stadiums, open-air gatherings, subways, expressways, high-speed railways, and wide-area coverage areas characterized by ultra-high traffic density, ultra-high connection density, and ultra-high mobility, users will be able to experience ultimate services such as ultra-high-definition video, virtual reality, augmented reality, cloud desktops, and online gaming. Furthermore, 5G technology will penetrate the Internet of Things and various industries, deeply integrating with industrial facilities, medical equipment, and transportation, effectively meeting the diverse service needs of vertical industries such as industry, healthcare, and transportation, and realizing a true "Internet of Everything." Based on the business needs and challenges of mobile Internet and Internet of Things as the main application scenarios, four main 5G technical scenarios can be summarized: continuous wide area coverage, high-capacity hotspots, low-power large connections, and low latency and high reliability.

[0160] If the design scheme of the control channel in the existing LTE technology is applied to the 5G system, it will obviously not meet the design flexibility requirements of the 5G system, and the scalability and adaptability of the control channel in the existing technology are poor, and cannot meet the design concept of "forward compatibility". For example, when the control channel has different types for different services, the flexibility and adaptability of the resource allocation of the control channel design scheme in the existing LTE technology are very poor, which will seriously reduce the spectrum efficiency of the system and increase the maintenance cost of the system. In addition, terminal devices with multiple service capabilities cannot know the type information of the control channels supported by the system, and can only judge the current system's support for different services through blind detection. Therefore, it greatly affects the system performance, and also increases the power consumption and control overhead of the terminal equipment, and the "forward compatibility" of the system is very poor. Therefore, how to design a set of technical solutions for the control channel of the 5G system has become an urgent problem that needs to be solved.

[0161] The technical solution of the present invention is described in detail below through specific embodiments. The first communication node in the following embodiments of the present invention can be, for example, a base station (Based Service, referred to as: BS) in a wireless communication system or an evolved base station (evolved NodeB, referred to as: eNB) in an LTE system. In a 5G system, the first communication node can also be a terminal device, and the second communication node can be, for example, a terminal device. The present invention provides the following specific embodiments that can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0162] Figure 1 This is a flowchart of an information transmission method provided by an embodiment of the present invention. The information transmission method provided by this embodiment is applicable to the case of channel control in a 5G system. The method can be executed by an information transmission device, which is implemented by combining hardware and software. The device can be integrated into the processor of the first communication node for the processor to call and use. Figure 1 As shown, the method of this embodiment may include:

[0163] S110, the first communication node obtains a control channel description list, which includes description information of N sets of control channels, and the description information of each set of control channels includes: one or more of control channel configuration information, reference signal configuration information, link resource configuration information, working bandwidth configuration information, puncturing configuration information, frequency hopping configuration information, transmission time interval length configuration information, power control configuration information and beam configuration information.

[0164] The information transmission method provided by the embodiment of the present invention is a configuration content of a control channel designed for use in a 5G system. The configuration content of the control channel in this embodiment can be described by a control channel description list. The first communication node obtains the control channel description list, which includes description information of N sets of control channels, specifically describing the N sets of control channels. Obviously, N in this embodiment is a positive integer. The description information of each set of control channels in each embodiment of the present invention includes: one or more of control channel configuration information, reference signal configuration information, link resource configuration information, working bandwidth configuration information, puncturing configuration information, frequency hopping configuration information, transmission time interval length configuration information, power control configuration information and beam configuration information, and any two control channel schedulable frequency domain resources described by the description information of the N sets of control channels can be completely different, partially overlapping or completely overlapping, wherein completely different means that the any two sets of control channel schedulable frequency domain resources can be continuous or discrete. As Figure 2 As shown, Figure 1 A schematic diagram of a control channel description list in the information transmission method provided in the illustrated embodiment, Figure 2 The control channel description list includes description information of type A control channels, description information of type B control channels, and description information of type C control channels, and may also include description information of other types of control channels.

[0165] It should be noted that the way in which the first communication node obtains the control channel description list in this embodiment, that is, S110, can be: the first communication node generates a control channel description list; or the first communication node receives a control channel description list sent by other communication nodes. In other words, the control channel description list can be generated by the first communication node or other communication nodes in the 5G network. The other communication node is usually an upper-layer network device of the first communication node, such as a Radio Resource Control (RRC) device similar to that in the LTE system. In a specific implementation, the first communication node or other communication nodes can generate a control channel description list based on the service type currently supported by the network or the load condition of the network.

[0166] S120, the first communication node sends a control channel description list to the second communication node.

[0167] In this embodiment, after obtaining the control channel description list, the first communication node can send the control channel description list to the second communication node communicating with it in the network. The description information of the N sets of control channels in the control channel description list describes the channel control method between the first communication node and the second communication node, and the resources used to transmit uplink and downlink data. That is, the second communication node can perform subsequent control channel and / or data channel processing based on the received control channel description list. For example, the second communication node knows which control channels are included in the description information of the N sets of control channels, and can process the corresponding control channel and data information according to the description information of each set of control channels.

[0168] Compared with the single control channel designed in the existing LTE technology, the control channel description list in this embodiment integrates the configuration content of multiple control channels, where the integrated content can be selectively integrated into the configuration content according to the actual application situation; for example, the corresponding content can be configured into the control channel description list according to different application scenarios, different service types, or different service types' QoS requirements, so that the currently configured control channel description list can meet the communication node's current service requirements.

[0169] For example, when the network needs to support three services: ultra-mobile broadband, low-latency and high-reliability machine communication, and massive machine communication, it is necessary to generate a control channel description list containing three sets of control channel description information to describe the control channel transmission cycle and the resources used.

[0170] Obviously, in the embodiment of the present invention, the control channel can be flexibly configured according to business needs. The second communication node obtains the configuration of the control information through the control channel description list, thereby performing subsequent control channel demodulation and data demodulation and other processing operations.

[0171] The information transmission method provided in this embodiment is that a first communication node obtains a control channel description list and sends the control channel description list to a second communication node communicating with it, so that the second communication node processes subsequent control channel and / or data information according to the control channel description list, wherein the control channel description list includes N sets of control channel description information; the control channel description list in this embodiment can be configured according to business needs, realizing the need for flexible design of control channel configuration content, and this embodiment solves the problems of single control channel design and poor flexibility, scalability and adaptability in existing LTE technology by reasonably designing a standard solution for control channels in 5G systems.

[0172] Optionally, based on the embodiment of the present invention, the control channel description list in this embodiment may further include type information of M types of terminal devices, where M is also a positive integer. In a specific implementation, the correspondence between the M types of terminal devices and the N sets of control channel description information is as follows: each terminal device type corresponds to one or more sets of control channel description information. In addition, each set of control channel description information may correspond to one or more types of terminal devices. In this embodiment, the types of terminal devices may be differentiated based on services, computing capabilities, or supported standard versions.

[0173] like Figure 3 As shown, it is a flow chart of another information transmission method provided by an embodiment of the present invention. Figure 1 On the basis of the embodiment shown, the method provided in this embodiment further includes:

[0174] S130, the first communication node sends control channel type indication information to the second communication node, where the control channel type indication information is used to instruct the second communication node to use designated n sets of control channel description information among N sets of control channel description information to perform control channel and / or data channel processing.

[0175] In this embodiment, the first communication node can not only send a control channel description list to the second communication node, but also send control channel type indication information to the second communication node, used to inform the second communication node which sets of control channel description information to use, where n is a positive integer less than or equal to N. Optionally, in this embodiment, the length of the control channel type indication information is determined by the variable N, i.e., the first communication node generates signaling to notify the second communication node based on the size of N. For example, if the second communication node sends three control channel description lists, represented as List 1-List 3, and notifies the second communication node to use the first set of control channel description lists, the first communication node will indicate this information to the first communication node via two-bit signaling, where "00" in the two bits indicates the description information of the first set of control channels, "01" indicates the description information of the second set of control channels, "10" indicates the description information of the third set of control channels, and "11" indicates that the third set of control channels is not used.

[0176] It should be noted that this embodiment does not limit the order in which the first communication node sends the control channel description list and the control channel type indication information, that is, it does not limit the execution order of S130 and S120. Figure 3 The illustrated embodiment is illustrated by taking S130 being executed after S120 as an example.

[0177] like Figure 4 As shown, it is a flow chart of another information transmission method provided by an embodiment of the present invention. Figure 1 On the basis of the illustrated embodiment, the method provided in this embodiment may further include, before S120, the following steps: S111, the first communication node receives a random access signal sent by the second communication node.

[0178] Furthermore, this embodiment may further include, before S120: S112, the first communication node receives a control channel description list request message sent by the second communication node.

[0179] In this embodiment, the first communication node may learn that the second communication node needs to establish a connection with the first communication node and communicate with the first communication node when the second communication node sends a random access signal. That is, the first communication node may send the acquired control channel description list after receiving the random access signal. Optionally, the first communication node in this embodiment may also learn of the second communication node's needs when the second communication node sends a control channel description list request message, and subsequently send a corresponding number of control channel description information.

[0180] In a specific implementation of this embodiment, before sending the control channel description list, that is, before executing S120, the first communication node may further execute S113, where the first communication node obtains resources for sending the control channel description list through contention. That is, in this embodiment, after determining that the control channel description list needs to be sent, the first communication node may obtain the sending resources through contention and then perform the sending operation.

[0181] It should be noted that, in this embodiment, one of S111, S112 and S113 can be selectively executed, or all of them can be executed. Figure 4 The embodiment shown is illustrated by taking the order of executing S111 , S112 and S113 in sequence as an example.

[0182] Optionally, based on the above embodiments, Figure 5 As shown in FIG. 1 , it is a flow chart of another information transmission method provided by an embodiment of the present invention. Figure 1 The embodiment shown is used as an example, and before S120, the following steps are further included:

[0183] S111, the first communication node sends a first notification message to the second communication node through signaling, where the first notification message instructs the first communication node to determine to send a control channel description list.

[0184] In a specific implementation of this embodiment, after S120, the following steps may be further included:

[0185] S130, the first communication node sends a second notification message to the second communication node through signaling, where the second notification message indicates whether the control channel description list is updated.

[0186] In this embodiment, the first communication node may send the first notification message and the second notification message via unicast or broadcast. The signaling in this embodiment may be carried in a physical broadcast control channel, for example. Similarly, the first communication node in this embodiment may also notify the second communication node via signaling of the resources used to send the control channel description list and the transmission period of the control channel description list. That is, the control channel description list in this embodiment may also include the transmission period information of the control channel description list, that is, the control channel description list in this embodiment may be periodically sent by the first communication node.

[0187] Furthermore, the method provided in this embodiment may also include: the first communication node sending a synchronization channel to the second communication node, wherein the resources used by the first communication node to send the control channel description list are the same as the resources used to send the synchronization channel.

[0188] It should be noted that each set of control channels in each embodiment of the present invention may be sent by the first communication node or by other communication nodes, and the carrier frequency used by the first communication node to send the control channel description list may be different from the carrier frequency used by the N sets of control channels. In addition, the second communication node that receives the control channel description list in each embodiment of the present invention may be a preset type of second communication node set. Specifically, the preset type of second communication node set is a second communication node set that supports machine type communication, or a second communication node set that supports low-latency and high-reliability machine communication, or a second communication node set that supports low-rate machine communication, or a second communication node set that supports mobile broadband.

[0189] The following describes some possible implementations of the embodiment of the present invention through some specific application scenarios of the configuration content in the control channel description list designed in the embodiment of the present invention.

[0190] Optionally, based on the above embodiments, the description information of each set of control channels in this embodiment includes, for example, control channel configuration information, which may include: resource location, subcarrier spacing, waveform, transmission period, effective time length, resource mapping method, spread spectrum codeword, number of information bits, modulation and coding method, code rate, multi-antenna transmission mode, number of repetitions and repetition period. One or more of them.

[0191] In one application scenario of this embodiment, the control channel configuration information specifically includes a resource location, which may include a starting resource location and / or an ending resource location. For example, if the resource length and the starting resource location are known, the ending resource location can be calculated. For another example, if the starting resource location and the ending resource location are known, the resource length can be calculated. In a specific implementation of this embodiment, the second communication node obtains the starting resource location of the control channel related to itself according to the control channel configuration information, such as Figure 6 FIG. 1 is a schematic diagram of a resource location in the information transmission method provided by an embodiment of the present invention. The resource location refers to the relative position of each control channel within a corresponding transmission time interval, for example Figure 6 The control channel described in the resource position is an A-type control channel, and a transmission time interval corresponding to the A-type control channel is 1 millisecond (ms) or 0.5 ms.

[0192] In another application scenario of this embodiment, the control channel configuration information specifically includes a subcarrier spacing and / or waveform. Accordingly, after receiving the control channel description list, the second communication node can obtain information about its own control channel based on the control channel configuration information. For example, different control channels have different subcarrier spacings. For example, the subcarrier spacing of the control channel for massive machine communication is 3.75 kilohertz (KHz), the subcarrier spacing of mobile broadband is 15 KHz, and the subcarrier spacing of high-frequency communication is 480 KHz. Another example is that different control channels have different waveforms. For example, the waveform for massive machine communication uses frequency division multiplexing (FDM), while the waveforms for mobile broadband and high-frequency communication use OFDM.

[0193] In another application scenario of this embodiment, the control channel configuration information specifically includes a transmission period. Accordingly, after receiving the control channel description list, the second communication node can obtain information about its own control channel according to the control channel configuration information. Figure 7 As shown, it is a schematic diagram of the distribution of a control channel in the information transmission method provided by an embodiment of the present invention, such as Figure 8 As shown, it is a schematic diagram of the distribution of another control channel in the information transmission method provided by an embodiment of the present invention, such as Figure 9 As shown, it is a schematic diagram of the distribution of another control channel in the information transmission method provided by the embodiment of the present invention, such as Figure 10 FIG. 1 is a schematic diagram showing the distribution of another control channel in the information transmission method provided by an embodiment of the present invention. Figures 7 to 10 A schematic diagram of the distribution of various types of control channels is given. Figure 7 The resources used by different types of control channels are frequency-divided. Figure 8 The resources used by different types of control channels are frequency-divided, and Figure 7 and Figure 8 There is no overlap between different types of control channels in the frequency domain. Figure 8 The resources used by the B-type control channel and the D-type control channel are time-divided. Figure 9 The frequency domain resources used by different types of control channels in

[10] are partially overlapping, but the time domain resources are different. For example, the transmission period of a machine communication terminal that is not sensitive to time can be set to be longer than the transmission period of a machine communication terminal with low latency and high reliability. Figure 7 The B-type control channel in the example is the transmission period of the machine communication terminal that is not time-sensitive. The transmission period of the B-type control channel can be set to Figure 7The transmission period of the C type control channel, and the transmission period can be based on a specific time domain unit. For example, the time domain length of each basic transmission unit is 0.1ms, the transmission period is 10 basic transmission units, and the transmission period of the control channel is 1ms.

[0194] In another application scenario of this embodiment, the control channel configuration information specifically includes the effective time length. Accordingly, after receiving the control channel description list, the second communication node can obtain the control channel information related to itself according to the control channel configuration information. Figure 11 As shown, a schematic diagram of the effective time length of a control channel description list in the information transmission method provided in an embodiment of the present invention is provided. For example, the effective time length for the second communication node to obtain the control channel configuration information through the configuration information is 10ms. Then, the second communication node can obtain the control channel according to the configuration parameters given by the control channel configuration information within the effective time length, and the effective time of subsequent control channel configuration information is given by the description list of the new control channel.

[0195] In another application scenario of this embodiment, the control channel configuration information specifically includes a repetition count. Accordingly, after receiving the control channel description list, the second communication node can obtain control channel information related to itself based on the control channel configuration information. For example, for machine communication services with different coverage levels, different wireless transmission environments may require different control channel repetition counts. Generally, the worse the channel environment, the greater the required control channel repetition count.

[0196] In addition, in other application scenarios of this embodiment, the control channel configuration information may also include one or more of the following: resource mapping mode, spread spectrum codeword, number of information bits, modulation and coding mode, code rate, multi-antenna transmission mode and repetition period. Accordingly, after receiving the control channel description list, the second communication node can also obtain information about its own control channel based on the control channel configuration information. For example, the resource mapping mode can be physically continuous or discrete, different types of control channels use different sets of spread spectrum codewords or different methods of generating spread spectrum codewords, different types of control channels transmit different numbers of information bits, and different service channels use different modulation and coding modes and code rates. Generally, for services with poor channel environments, the modulation and coding mode and spectrum efficiency of the control channel can be lower. Different types of control channels use different multi-antenna transmission modes. For example, when the terminal has strong capabilities, a more complex multi-antenna transmission mode can be used.

[0197] In another possible implementation of this embodiment, the control channel configuration information in the description information of each set of control channels may include: one or more of: synchronization channel configuration information, broadcast channel configuration information, access parameter configuration information, resource allocation channel configuration information and feedback channel configuration information. In a specific implementation, the synchronization channel configuration information may include: one or more of resource location, transmission period, resource mapping mode, and synchronization sequence; or the broadcast channel configuration information may include: one or more of resource location, transmission period, resource mapping mode, valid information length, and information type; or the access parameter configuration information may include: one or more of resource location, transmission period, resource mapping mode, and access sequence set; or the resource allocation channel configuration information is used to indicate the frequency domain range of data resources schedulable for each control channel; or the feedback channel configuration information may include: one or more of an Acknowledgement (ACK) or Negative Acknowledgement (Nacknowledgement) (ACK / NACK) feedback interval and a channel state information feedback mode. The ACK / NACK feedback interval may be configured, for example, to complete feedback within one transmission time interval or within M transmission time intervals. Each transmission time interval may include one downlink control channel and one uplink control channel, where M is a positive integer. The channel state information feedback mode may adopt, for example, a synchronous Hybrid Automatic Repeat reQuest (HARQ) mode or an asynchronous HARQ mode.

[0198] Optionally, based on the above embodiments, the description information of each set of control channels in this embodiment includes, for example, reference signal configuration information. In one application scenario of this embodiment, the reference signal configured by the reference signal configuration information can be used to demodulate the reference signal used by each corresponding set of control channels, and can also be used to measure channel state information. In another application scenario of this embodiment, the reference signal configured by the reference signal configuration information can be used for beam direction training. For example, a communication node operating in a high frequency band, i.e., greater than 6 gigahertz (GHz), can use the reference signal to train, track, and optimize transmit and / or receive beams. The reference signal configuration information in this embodiment may include one or more of: a resource location, a sequence set, and a measurement window, where a resource location is, for example, a location in the time domain or frequency domain, which may also be referred to as a pilot pattern; a sequence set is, for example, a sequence generation method, the number of sequences that can be used, etc.; and a measurement window is, for example, a transmission period and / or duration of a reference signal.

[0199] Optionally, based on the above embodiments, the description information of each set of control channels in this embodiment includes, for example, link resource configuration information, which may include: the number of each set of control channels in its corresponding transmission time interval, and one or more of the transmission directions of each set of control channels. Furthermore, each set of control channels in the transmission time interval may include: a downlink control channel and / or an uplink control channel. Figure 12 As shown, it is a schematic diagram of a transmission time interval in the information transmission method provided by an embodiment of the present invention, such as Figure 13 FIG. 1 is a schematic diagram of another transmission time interval in the information transmission method provided by an embodiment of the present invention, with reference to FIG. Figure 12 and Figure 13 As shown, a transmission time interval may include a downlink control channel and an uplink control channel. Figure 13 The downlink control channel is specifically located at the starting position of the transmission time interval, and the uplink control channel is specifically located at the end position of the transmission time interval. The middle part of the transmission time interval can be used to transmit uplink data and / or downlink data; in addition, the uplink control channel or the downlink control channel may also include a reference signal for measuring channel state information.

[0200] Optionally, based on the above embodiments, the description information of each set of control channels in this embodiment includes, for example, working bandwidth configuration information, which is used to indicate the frequency domain resource range that can be scheduled for each set of control channels or the working frequency band of each set of control channels; in a specific implementation, the frequency domain resource range that can be scheduled for each set of control channels is generally greater than or equal to the frequency domain resource range used to transmit the control channel. For example, the frequency domain resource range of a certain control channel is 180KHz. When the control channel is used to schedule resources for the second communication node, the schedulable frequency domain resource range can be 20MHz. The advantage of this is that the wireless communication system can optimize the use of precious wireless resources to the greatest extent according to the actual load conditions. Furthermore, the working frequency band of each set of control channels can be different from the frequency band used to send the description list of the control channel. Generally speaking, the frequency band used to send the description list of each set of control channels is relatively low, usually below 3GHz, to ensure sufficient system coverage and help reduce network maintenance costs.

[0201] Optionally, based on the above embodiments, in this embodiment, the description information of each control channel includes, for example, transmission time interval length configuration information. This transmission time interval length configuration information may include the time length corresponding to each control channel. That is, within this time length, the second communication node may operate according to the relevant configuration in the control channel description information. Furthermore, the transmission time interval length configured in the transmission time interval length configuration information may be in units of standard-defined basic resource units, which may be 0.1 ms, 0.5 ms, or the like.

[0202] Optionally, based on the above embodiments, the description information of each set of control channels in this embodiment includes, for example, puncturing configuration information. The puncturing configuration information is used to indicate whether the second communication node uses the information on the resources used to transmit X sets of control channels for decoding when the data transmission resources used by the second communication node include resources used to transmit Y sets of control channels. The above-mentioned X sets of control channels belong to the Y set of control channels, where X is a positive integer less than or equal to N, and Y is a positive integer greater than or equal to X and less than or equal to N. Figure 14 FIG. 1 is a schematic diagram of a demodulation and opening control channel in the information transmission method provided by an embodiment of the present invention. Figure 14 The control channel description list in the description includes two sets of control channel description information, namely type A control channel and type B control channel, and the control channel transmission resources used by type A control channel and type B control channel are frequency-divided. For example, the total system bandwidth resource is 20MHz, type A control channel occupies 15MHz, type B control channel occupies 5MHz, and the transmission period of type B control channel is less than the transmission period of type A control channel. If the data transmission resource allocated to the second communication node in the description information of type A control channel is 20MHz, and it contains two type B control channels in the time domain, then when the second communication node receives data on the corresponding resource, it needs to determine whether to use the data on the resources corresponding to the two type B control channels (called punctured data) for data decoding according to the puncturing configuration information. If the puncturing configuration information indicates that puncturing is required, the second communication node does not use the punctured data for decoding, otherwise it uses the punctured data for decoding.

[0203] Optionally, based on the above embodiments, the description information for each control channel in this embodiment includes, for example, frequency hopping configuration information. After receiving the control channel description list, the second communication node in this embodiment can determine the frequency location of each control channel or the frequency location of the control channel's schedulable resources based on the frequency hopping configuration information. The technical solution provided by this embodiment has the advantage of achieving frequency selectivity gain during control channel or data channel transmission. Furthermore, the frequency hopping configuration information in this embodiment may include one or more of the following: frequency hopping resources, frequency-domain hopping intervals, and time-domain hopping intervals. These parameters can be designed by considering wireless channel characteristics such as coherence bandwidth and / or coherence time.

[0204] Optionally, based on the above embodiments, the description information of each set of control channels in this embodiment includes, for example, power control configuration information. The power control configuration information may include: one or more of a downlink transmit power control parameter value, an uplink transmit power control parameter value, and an uplink power control mode. For example, the downlink transmit power control parameter value includes the downlink transmit power of the first communication node; the uplink power control parameter value includes one or more of a path loss compensation factor, an inter-cell interference factor, and a compensation factor; and the uplink power control mode may be the power control method used by the communication node, such as whether it is open-loop or closed-loop, or the power control formula used.

[0205] Optionally, based on the above embodiments, the description information of each set of control channels in this embodiment includes, for example, beam configuration information, which may include: one or more of the number of transmitting beams, the number of receiving beams, the transmitting beam switching period, the receiving beam switching period and the beam training mode.

[0206] Since the need for "forward compatibility" was not fully considered in the design of the LTE standard, the subsequent standard design became increasingly difficult, the spectrum efficiency became increasingly low, and the maintenance cost of the system was increased. It can be seen from the information transmission method provided by the above-mentioned embodiments of the present invention that the range of optional configuration information of the configuration content of the control channel description list in each embodiment of the present invention is large and highly integrated. Taking into account factors such as various application scenarios, different service types, and QoS requirements of different service types, the content of the configured control channel description list can be updated when the application scenario, service type, or QoS requirement changes. On the premise of further improving flexibility, the need for "forward compatibility" is fully taken into consideration, thereby improving spectrum efficiency and reducing the cost of subsequent system maintenance.

[0207] Figure 15 A flowchart of another information transmission method provided by an embodiment of the present invention. The information transmission method provided in this embodiment is applicable to the case of channel control in a 5G system. The method can be executed by an information transmission device, which is implemented by combining hardware and software. The device can be integrated into the processor of the second communication node for the processor to call and use. Figure 15 As shown, the method of this embodiment may include:

[0208] S210, the second communication node receives a control channel description list sent by the first communication node, the control channel description list includes N sets of control channel description information, and each set of control channel description information includes: control channel configuration information, reference signal configuration information, link resource configuration information, working bandwidth configuration information, puncturing configuration information, frequency hopping configuration information, transmission time interval length configuration information, power control configuration information and beam configuration information. One or more items.

[0209] The information transmission method provided in the embodiment of the present invention is a configuration content of a control channel designed for use in a 5G system. The configuration content of the control channel in this embodiment can be described by a control channel description list. The second communication node receives the control channel description list sent by the first communication node. The control channel description list includes description information of N sets of control channels, specifically describing the N sets of control channels. Obviously, N in this embodiment is a positive integer. Any two control channel schedulable frequency domain resources described by the description information of the N sets of control channels in each embodiment of the present invention may be completely different, partially overlapping, or completely overlapping. You can also refer to Figure 2 Schematic diagram of the control channel description list shown.

[0210] It should be noted that in this embodiment, the control channel description list can be generated by the first communication node, or generated by another communication node and sent to the first communication node. In other words, the control channel description list can be generated by the first communication node or another communication node in the 5G network, and the other communication node is typically an upper-layer network device of the first communication node.

[0211] It should also be noted that the specific implementation of the configuration content in the control channel description list in each embodiment of the present invention has been described in the above embodiments, and will not be repeated in this embodiment.

[0212] S220: The second communication node performs control channel and / or data channel processing according to the control channel description list.

[0213] In this embodiment, after obtaining the control channel description list, the first communication node can send the control channel description list to the second communication node communicating with it in the network. The description information of the N sets of control channels in the control channel description list describes the channel control method between the first communication node and the second communication node, and the resources used to transmit uplink and downlink data. That is, the second communication node can perform subsequent control channel and / or data channel processing based on the received control channel description list.

[0214] Compared with the single control channel designed in the existing LTE technology, the control channel description list in this embodiment integrates the configuration content of multiple control channels, where the integrated content can be selectively integrated into the configuration content according to the actual application situation; for example, the corresponding content can be configured into the control channel description list according to different application scenarios, different service types, or different service types' QoS requirements, so that the currently configured control channel description list can meet the communication node's current service requirements.

[0215] Obviously, in the embodiment of the present invention, the control channel can be flexibly configured according to business needs. The second communication node obtains the configuration of the control information through the control channel description list, thereby performing subsequent control channel demodulation and data demodulation and other processing operations.

[0216] In the information transmission method provided by this embodiment, the second communication node receives a control channel description list sent by the first communication node, and processes subsequent control channel and / or data information according to the received control channel description list, wherein the control channel description list includes N sets of control channel description information; the control channel description list in this embodiment can be configured according to business needs, realizing the need for flexible design of control channel configuration content, and this embodiment solves the problems of single control channel design and poor flexibility, scalability and adaptability in existing LTE technology by reasonably designing a standard solution for control channels in 5G systems.

[0217] Optionally, based on the embodiment of the present invention, the control channel description list in this embodiment may further include type information of M types of terminal devices, where M is also a positive integer. In a specific implementation, the correspondence between the M types of terminal devices and the N sets of control channel description information is as follows: each terminal device type corresponds to one or more sets of control channel description information. In addition, each set of control channel description information may correspond to one or more types of terminal devices. In this embodiment, the types of terminal devices may also be differentiated based on services, computing capabilities, or supported standard versions.

[0218] like Figure 16 As shown, it is a flow chart of another information transmission method provided by an embodiment of the present invention. Figure 15 Based on the illustrated embodiment, the method provided in this embodiment further includes, before the second communication node performs channel processing, that is, before S220:

[0219] S211: The second communication node receives the control channel type indication information sent by the first communication node. Accordingly, S220 in this embodiment is specifically implemented as follows: the second communication node uses the description information of designated n control channels among the description information of the N control channels to perform control channel and / or data channel processing.

[0220] In this embodiment, the first communication node may not only send a control channel description list to the second communication node, but may also send control channel type indication information to the second communication node to notify the second communication node of which sets of control channel description information to use, where n is a positive integer less than or equal to N. Optionally, in this embodiment, the length of the control channel type indication information is determined by the variable N. The specific determination method has been described in the above embodiment and will not be repeated here.

[0221] It should be noted that this embodiment does not limit the order in which the second communication node receives the control channel description list and the control channel type indication information, that is, the execution order of S210 and S211 is not limited, as long as S210 and S211 are executed before the second communication node performs channel processing. Figure 16 The illustrated embodiment is illustrated by taking S211 being executed after S210 as an example.

[0222] like Figure 17 As shown, it is a flow chart of another information transmission method provided by an embodiment of the present invention. Figure 15 On the basis of the illustrated embodiment, the method provided in this embodiment may further include, before S210: S200, the second communication node sends a random access signal to the first communication node.

[0223] Furthermore, before S210, this embodiment may further include: S201, the second communication node sends a control channel description list request message to the first communication node.

[0224] In addition, before S210, this embodiment may further include: S202, the second communication node obtains the system operating bandwidth.

[0225] In the specific implementation of this embodiment, the sending resources of the control channel description list are obtained by the first communication node through competition. That is, after the first communication node in this embodiment determines that the control channel description list needs to be sent, it can obtain the sending resources through competition and then perform the sending operation.

[0226] It should be noted that, in this embodiment, one of S200, S201 and S202 can be selectively executed, or all of them can be executed. Figure 17 The embodiment shown is illustrated by taking the order of executing S200 , S201 and S202 in sequence as an example.

[0227] Optionally, based on the above embodiments, Figure 18 As shown in FIG. 1 , it is a flow chart of another information transmission method provided by an embodiment of the present invention. Figure 15 The embodiment shown is used as an example, and before S210, the following steps are further included:

[0228] S200, the second communication node receives a first notification message sent by the first communication node through signaling, where the first notification message instructs the first communication node to determine to send a control channel description list.

[0229] In a specific implementation of this embodiment, after S210 or S220, the following steps may be further included:

[0230] S230, the second communication node receives a second notification message sent by the first communication node through signaling, where the second notification message indicates whether the control channel description list is updated.

[0231] The first notification message and the second notification message received by the second communication node in this embodiment may be sent by the first communication node via unicast or broadcast. The signaling in this embodiment may be carried in a physical broadcast control channel, for example. Similarly, the second communication node in this embodiment may also receive the resources used to send the control channel description list and the transmission period of the control channel description list, notified to it by the first communication node via signaling. That is, the control channel description list in this embodiment may also include the transmission period information of the control channel description list, that is, the control channel description list in this embodiment may be periodically sent by the first communication node.

[0232] Furthermore, the method provided in this embodiment may also include: the second communication node receives the synchronization channel sent by the first communication node, wherein the resources used by the first communication node to send the control channel description list are the same as the resources used to send the synchronization channel.

[0233] It should be noted that each set of control channels in each embodiment of the present invention may be sent by the first communication node or by other communication nodes, and the carrier frequency used by the first communication node to send the control channel description list may be different from the carrier frequency used by the N sets of control channels. In addition, the second communication node that receives the control channel description list in each embodiment of the present invention may be a preset type of second communication node set. Specifically, the preset type of second communication node set is a second communication node set that supports machine type communication, or a second communication node set that supports low-latency and high-reliability machine communication, or a second communication node set that supports low-rate machine communication, or a second communication node set that supports mobile broadband.

[0234] Figure 19This is a structural diagram of an information transmission device provided by an embodiment of the present invention. The information transmission device provided by this embodiment is suitable for use in channel control in a 5G system. The information transmission device is implemented by combining hardware and software. The device can be integrated into the processor of the first communication node for use by the processor. Figure 19 As shown, the information transmission device of this embodiment specifically includes: an acquisition module 11 and a sending module 12.

[0235] The acquisition module 11 is configured to acquire a control channel description list, where the control channel description list includes description information of N sets of control channels. In this embodiment, the description information of each set of control channels includes one or more of: control channel configuration information, reference signal configuration information, link resource configuration information, operating bandwidth configuration information, puncturing configuration information, frequency hopping configuration information, transmission time interval configuration information, power control configuration information, and beam configuration information.

[0236] The information transmission device provided in the embodiment of the present invention is a configuration content of a control channel designed for use in a 5G system. The configuration content of the control channel in this embodiment can also be described by a control channel description list. The acquisition module 11 acquires the control channel description list, which includes description information of N sets of control channels, specifically describing the N sets of control channels. Obviously, N in this embodiment is a positive integer. Any two control channel schedulable frequency domain resources described by the description information of the N sets of control channels in each embodiment of the present invention may be completely different, partially overlapping, or completely overlapping, wherein completely different means that the any two sets of control channel schedulable frequency domain resources may be continuous or discrete. You can also refer to Figure 2 Schematic diagram of the control channel description list shown.

[0237] It should be noted that the acquisition module 11 in this embodiment may include a generation unit 13 or a receiving unit 14. Accordingly, the acquisition module 11 may acquire the control channel description list in the following manner: the generation unit 13 is configured to generate the control channel description list; and the receiving unit 14 is configured to receive the control channel description list sent by other communication nodes. In other words, the control channel description list may be generated by the acquisition module 11 in the first communication node or by another communication node in the 5G network, where the other communication node is typically an upper-layer network device of the first communication node.

[0238] It should also be noted that the specific implementation of the configuration content in the control channel description list in each embodiment of the present invention has been described in the above embodiments, and will not be repeated in this embodiment.

[0239] The sending module 12 connected to the obtaining module 11 is configured to send the control channel description list obtained by the obtaining module 11 to the second communication node.

[0240] In this embodiment, after the acquisition module 11 obtains the control channel description list, the sending module 12 can send the control channel description list to the second communication node communicating with it in the network. The description information of the N sets of control channels in the control channel description list describes the channel control method between the first communication node and the second communication node, and the resources used to transmit uplink and downlink data, that is, the second communication node can perform subsequent control channel and / or data channel processing according to the received control channel description list.

[0241] The information transmission device provided by the embodiment of the present invention is used to implement the present invention Figure 1 The information transmission method provided in the illustrated embodiment has corresponding functional modules, and its implementation principles and technical effects are similar, which will not be repeated here.

[0242] Optionally, based on the embodiment of the present invention, the control channel description list in this embodiment may further include type information of M types of terminal devices, where M is also a positive integer. In a specific implementation, the correspondence between the M types of terminal devices and the N sets of control channel description information is as follows: each terminal device type corresponds to one or more sets of control channel description information. In addition, each set of control channel description information may correspond to one or more types of terminal devices. In this embodiment, the types of terminal devices may be differentiated based on services, computing capabilities, or supported standard versions.

[0243] In the above Figure 19 On the basis of the illustrated embodiment, in the device provided by this embodiment, the sending module 12 is also configured to be able to send control channel type indication information to the second communication node, and the control channel type indication information is used to instruct the second communication node to use the description information of the specified n sets of control channels among the description information of the N sets of control channels to perform control channel and / or data channel processing.

[0244] In this embodiment, the sending module 12 may not only send the control channel description list to the second communication node, but may also send control channel type indication information to the second communication node, for notifying the second communication node of which sets of control channel description information to use, where n is a positive integer less than or equal to N. Optionally, in this embodiment, the length of the control channel type indication information is determined by the variable N. The specific determination method has been described in the above embodiment and will not be repeated here.

[0245] It should be noted that this embodiment does not limit the order in which the sending module 12 sends the control channel description list and the control channel type indication information.

[0246] The information transmission device provided by the embodiment of the present invention is used to implement the present invention Figure 3 The information transmission method provided in the illustrated embodiment has corresponding functional modules, and its implementation principles and technical effects are similar, which will not be repeated here.

[0247] like Figure 20 FIG. 1 is a schematic diagram of another information transmission device provided by an embodiment of the present invention. Figure 21 On the basis of the illustrated embodiment, the device provided in this embodiment also includes: a receiving module 15 connected to the sending module 12, configured to receive a random access signal sent by the second communication node, or receive a control channel description list request message sent by the second communication node before the sending module 12 sends the control channel description list to the second communication node.

[0248] In a specific implementation of this embodiment, the acquisition module 11 is further configured to acquire resources for sending the control channel description list through a competitive manner before the sending module 12 sends the control channel description list to the second communication node. That is, in this embodiment, after the first communication node determines that it needs to send the control channel description list, the acquisition module 11 can acquire the sending resources through a competitive manner, and then the sending module 12 performs the sending operation.

[0249] The information transmission device provided by the embodiment of the present invention is used to implement the present invention Figure 4 The information transmission method provided in the illustrated embodiment has corresponding functional modules, and its implementation principles and technical effects are similar, which will not be repeated here.

[0250] Optionally, in the above Figure 19 and Figure 20 Based on the structure of the information transmission device shown, the sending module 12 in this embodiment is also configured to be able to send a first notification message to the second communication node through signaling before sending the control channel description list to the second communication node. The first notification message indicates that the first communication node determines to send the control channel description list.

[0251] In a specific implementation of this embodiment, the sending module 12 is further configured to send a second notification message to the second communication node through signaling after sending the control channel description list to the second communication node. The second notification message indicates whether the control channel description list is updated.

[0252] The sending module 12 in this embodiment can send the first notification message and the second notification message in the form of unicast or broadcast. The signaling in this embodiment can be carried in a physical broadcast control channel, for example. Similarly, the sending module 12 in this embodiment can also notify the second communication node of the resources used to send the control channel description list and the transmission period of the control channel description list through signaling. That is, the control channel description list in this embodiment can also include the transmission period information of the control channel description list, that is, the control channel description list in this embodiment can be periodically sent by the first communication node.

[0253] Furthermore, the sending module 12 in this embodiment is further configured to be able to send a synchronization channel to the second communication node, wherein the resources used by the sending module 12 to send the control channel description list are the same as the resources used to send the synchronization channel.

[0254] The information transmission device provided by the embodiment of the present invention is used to implement the present invention Figure 5 The information transmission method provided in the illustrated embodiment has corresponding functional modules, and its implementation principles and technical effects are similar, which will not be repeated here.

[0255] It should be noted that each set of control channels in each embodiment of the present invention may be sent by the sending module 12 of the first communication node, or by other communication nodes, and the carrier frequency used by the sending module 12 of the first communication node to send the control channel description list may be different from the carrier frequency used by the N sets of control channels. In addition, in each embodiment of the present invention, the second communication node that receives the control channel description list may be a preset type of second communication node set. Specifically, the preset type of second communication node set is a second communication node set that supports machine type communication, or a second communication node set that supports low-latency and high-reliability machine communication, or a second communication node set that supports low-rate machine communication, or a second communication node set that supports mobile broadband.

[0256] In a specific implementation, the present invention Figure 19 and Figure 20 The sending module 12, the receiving module 15, and the receiving unit 14 in the acquisition module 11 in each of the illustrated embodiments can be implemented by a transceiver of the first communication node, and the generating unit 13 in the acquisition module 11 can be implemented by a processor of the first communication node, which can be, for example, a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits that implement the embodiments of the present invention.

[0257] Figure 21 This is a structural diagram of another information transmission device provided by an embodiment of the present invention. The information transmission device provided by this embodiment is suitable for use in channel control in a 5G system. The information transmission device is implemented by combining hardware and software. The device can be integrated into the processor of the second communication node for use by the processor. Figure 21 As shown, the information transmission device of this embodiment specifically includes: a receiving module 21 and a processing module 22.

[0258] The receiving module 21 is configured to receive a control channel description list sent by the first communication node, where the control channel description list includes description information of N sets of control channels. In this embodiment, the description information of each set of control channels includes one or more of: control channel configuration information, reference signal configuration information, link resource configuration information, operating bandwidth configuration information, puncturing configuration information, frequency hopping configuration information, transmission time interval configuration information, power control configuration information, and beam configuration information.

[0259] The information transmission device provided by the embodiment of the present invention is a configuration content of a control channel designed for use in a 5G system. The configuration content of the control channel in this embodiment can be described by a control channel description list. The receiving module 21 receives the control channel description list sent by the first communication node. The control channel description list includes description information of N sets of control channels, specifically describing N sets of control channels. Obviously, N in this embodiment is a positive integer. Any two control channel schedulable frequency domain resources described by the description information of the N sets of control channels in each embodiment of the present invention may be completely different, partially overlapping, or completely overlapping. You can also refer to Figure 2 Schematic diagram of the control channel description list shown.

[0260] It should be noted that in this embodiment, the control channel description list can be generated by the first communication node, or generated by another communication node and sent to the first communication node. In other words, the control channel description list can be generated by the first communication node or another communication node in the 5G network, and the other communication node is typically an upper-layer network device of the first communication node.

[0261] It should also be noted that the specific implementation of the configuration content in the control channel description list in each embodiment of the present invention has been described in the above embodiments, and will not be repeated in this embodiment.

[0262] The processing module 22 connected to the receiving module 21 is configured to perform control channel and / or data channel processing according to the control channel description list received by the receiving module 21 .

[0263] In this embodiment, after obtaining the control channel description list, the first communication node can send the control channel description list to the second communication node communicating with it in the network. The description information of the N sets of control channels in the control channel description list describes the channel control method between the first communication node and the second communication node, and the resources used to transmit uplink and downlink data, that is, the processing module 22 can perform subsequent control channel and / or data channel processing according to the received control channel description list.

[0264] The information transmission device provided by the embodiment of the present invention is used to implement the present invention Figure 15 The information transmission method provided in the illustrated embodiment has corresponding functional modules, and its implementation principles and technical effects are similar, which will not be repeated here.

[0265] Optionally, based on the embodiment of the present invention, the control channel description list in this embodiment may further include type information of M types of terminal devices, where M is also a positive integer. In a specific implementation, the correspondence between the M types of terminal devices and the N sets of control channel description information is as follows: each terminal device type corresponds to one or more sets of control channel description information. In addition, each set of control channel description information may correspond to one or more types of terminal devices. In this embodiment, the types of terminal devices may also be differentiated based on services, computing capabilities, or supported standard versions.

[0266] In the above Figure 21 Based on the structure of the illustrated embodiment, in the apparatus provided in this embodiment, the receiving module 21 is further configured to receive control channel type indication information sent by the first communication node before the processing module 22 performs control channel and / or data channel processing according to the control channel description list received by the receiving module 21. Accordingly, in this embodiment, the processing module 22 performs control channel and / or data channel processing in a specific manner by being configured to perform control channel and / or data channel processing using description information of designated n sets of control channels among the N sets of control channel description information.

[0267] In this embodiment, the first communication node may not only send a control channel description list to the second communication node, but may also send control channel type indication information to the second communication node to notify the second communication node of which sets of control channel description information to use, where n is a positive integer less than or equal to N. Optionally, in this embodiment, the length of the control channel type indication information is determined by the variable N. The specific determination method has been described in the above embodiment and will not be repeated here.

[0268] It should be noted that this embodiment does not limit the order in which the receiving module 21 receives the control channel description list and the control channel type indication information, as long as the above-mentioned receiving operation is performed before the processing module 22 performs channel processing.

[0269] The information transmission device provided by the embodiment of the present invention is used to implement the present invention Figure 16 The information transmission method provided in the illustrated embodiment has corresponding functional modules, and its implementation principles and technical effects are similar, which will not be repeated here.

[0270] like Figure 22 FIG. 1 is a structural diagram of another information transmission device provided by an embodiment of the present invention. Figure 21 Based on the structure of the illustrated embodiment, the device provided in this embodiment also includes: a sending module 23 connected to the receiving module 21, configured to be able to send a random access signal to the first communication node or send a control channel description list request message to the first communication node before the receiving module 21 receives the control channel description list sent by the first communication node.

[0271] In addition, the apparatus provided by this embodiment may further include: an acquisition module 24 connected to the receiving module 21, configured to acquire the system operating bandwidth before the receiving module 21 receives the control channel description list sent by the first communication node.

[0272] In the specific implementation of this embodiment, the sending resources of the control channel description list are obtained by the first communication node through competition. That is, after the first communication node in this embodiment determines that the control channel description list needs to be sent, it can obtain the sending resources through competition and then perform the sending operation.

[0273] The information transmission device provided by the embodiment of the present invention is used to implement the present invention Figure 17 The information transmission method provided in the illustrated embodiment has corresponding functional modules, and its implementation principles and technical effects are similar, which will not be repeated here.

[0274] Optionally, in the above Figure 21 and Figure 22 On the basis of the illustrated embodiment, in the device provided by this embodiment, the receiving module 21 is also configured to be able to receive a first notification message sent by the first communication node through signaling before receiving the control channel description list sent by the first communication node, and the first notification message indicates that the first communication node determines to send the control channel description list, or receive a second notification message sent by the first communication node through signaling, and the second notification message indicates whether the control channel description list is updated.

[0275] The first notification message and the second notification message received by the receiving module 21 in this embodiment may be sent by the first communication node via unicast or broadcast. The signaling in this embodiment may be carried in a physical broadcast control channel, for example. Similarly, the receiving module 21 in this embodiment is further configured to receive the resources used to send the control channel description list and the transmission period of the control channel description list, notified to it by the first communication node via signaling. That is, the control channel description list in this embodiment may also include the transmission period information of the control channel description list, that is, the control channel description list in this embodiment may be periodically sent by the first communication node.

[0276] Furthermore, in the device provided by this embodiment, the receiving module 21 is also configured to be able to receive a synchronization channel sent by the first communication node, wherein the resources used by the first communication node to send the control channel description list are the same as the resources used to send the synchronization channel.

[0277] It should be noted that each set of control channels in each embodiment of the present invention may be sent by the first communication node or by other communication nodes, and the carrier frequency used by the first communication node to send the control channel description list may be different from the carrier frequency used by the N sets of control channels. In addition, the second communication node to which the receiving module 21 belongs in each embodiment of the present invention may be a preset type of second communication node set. Specifically, the preset type of second communication node set is a second communication node set that supports machine type communication, or a second communication node set that supports low-latency and high-reliability machine communication, or a second communication node set that supports low-rate machine communication, or a second communication node set that supports mobile broadband.

[0278] The information transmission device provided by the embodiment of the present invention is used to implement the present invention Figure 18 The information transmission method provided in the illustrated embodiment has corresponding functional modules, and its implementation principles and technical effects are similar, which will not be repeated here.

[0279] In a specific implementation, the present invention Figure 21 and Figure 22 The receiving module 21 and the sending module 23 in each of the embodiments shown can be implemented by a transceiver of the second communication node, and the processing module 22 and the acquisition module 24 can be implemented by a processor of the second communication node, which can be, for example, a CPU, or an ASIC, or one or more integrated circuits that implement the embodiments of the present invention.

[0280] Figure 23The information transmission system provided in this embodiment is applicable to the case of channel control in a 5G system. The information transmission system specifically includes: a first communication node 31, and a second communication node 32 connected to the first communication node 31; wherein the first communication node 31 is provided with the above-mentioned Figure 19 and Figure 20 The second communication node 32 of the information transmission device in each embodiment shown is provided with the above-mentioned Figure 21 and Figure 22 The information transmission device in each embodiment shown.

[0281] It should be noted that, in this embodiment, the second communication node may be a preset type of second communication node set, specifically, the preset type of second communication node set is a second communication node set supporting machine type communication, or a second communication node set supporting low-latency and high-reliability machine communication, or a second communication node set supporting low-rate machine communication, or a second communication node set supporting mobile broadband. In addition, the manner in which each network element in the information transmission system of this embodiment performs information transmission is the same as the above-mentioned Figures 19 to 22 The corresponding network elements in the embodiment shown in the figure perform information transmission in the same manner, and are also used to implement the present invention. Figures 1 to 18 The information transmission method provided by any of the embodiments shown has a corresponding physical device, and its implementation principles and technical effects are similar, which will not be repeated here.

[0282] Those skilled in the art will appreciate that all or part of the steps in the above method can be completed by instructing relevant hardware (e.g., a processor) through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module / unit in the above embodiment can be implemented in the form of hardware, such as by implementing its corresponding functions through an integrated circuit, or in the form of a software functional module, such as by executing a program / instruction stored in a memory by a processor to implement its corresponding functions. The embodiments of the present invention are not limited to any particular form of combination of hardware and software.

[0283] Although the embodiments disclosed herein are as described above, the contents described herein are merely embodiments for facilitating understanding of the present invention and are not intended to limit the present invention. Any person skilled in the art may make any modifications and variations in the form and details of the embodiments without departing from the spirit and scope of the present invention. However, the scope of patent protection of the present invention shall remain subject to the scope defined by the appended claims.

Claims

1. An information transmission method, characterized in that: include: The first communication node obtains a control channel description list, where the control channel description list includes N sets of control channel description information, where N is a positive integer, and each set of the control channel description information includes: one or more of control channel configuration information, reference signal configuration information, link resource configuration information, operating bandwidth configuration information, frequency hopping configuration information, and transmission time interval configuration information; The first communication node sends the control channel description list to the second communication node; The first communication node sends control channel type indication information to the second communication node, where the control channel type indication information is used to instruct the second communication node to use description information of designated n sets of control channels among the description information of the N sets of control channels to perform control channel and / or data channel processing, where n is a positive integer less than or equal to N; Before the first communication node sends the control channel description list to the second communication node, it also includes: the first communication node receives a random access signal sent by the second communication node; or the first communication node receives a control channel description list request message sent by the second communication node.

2. The information transmission method according to claim 1, wherein: The control channel configuration information includes: one or more of: resource location, subcarrier spacing, waveform, transmission period, effective time length, resource mapping mode, spread spectrum codeword, number of information bits, modulation and coding mode, code rate, multi-antenna transmission mode, number of repetitions, and repetition period; wherein the resource location includes a starting resource location and / or an ending resource location; The resource position refers to the relative position of each set of the control channels within a transmission time interval corresponding to the control channel.

3. The information transmission method according to claim 1, wherein: The control channel configuration information includes: one or more of synchronization channel configuration information, broadcast channel configuration information, access parameter configuration information, resource allocation channel configuration information and feedback channel configuration information; The synchronization channel configuration information includes: one or more of resource location, transmission period, resource mapping mode and synchronization sequence; or, The broadcast channel configuration information includes: one or more of resource location, transmission period, resource mapping mode, effective information length and information type; or, The access parameter configuration information includes: one or more of resource location, transmission period, resource mapping mode and access sequence set; or, The feedback channel configuration information includes one or more of: a positive acknowledgement or negative acknowledgement ACK / NACK feedback interval, and a channel state information feedback mode.

4. The information transmission method according to claim 1, wherein: The reference signal configuration information includes: one or more of a resource location, a sequence set, and a measurement window; The reference signal configured by the reference signal configuration information is used to demodulate each set of the control channels; or, the reference signal configured by the reference signal configuration information is used to perform beam direction training.

5. The information transmission method according to claim 1, wherein: The link resource configuration information includes: the number of each set of control channels in its corresponding transmission time interval, and one or more transmission directions of each set of control channels; Each set of control channels in the transmission time interval includes: a downlink control channel and / or an uplink control channel.

6. The information transmission method according to claim 1, wherein: The working bandwidth configuration information is used to indicate the frequency domain resource range of each set of control channel scheduling; The frequency domain resource range of each set of control channel scheduling is greater than or equal to the frequency domain resource range used to transmit the control channel.

7. The information transmission method according to claim 1, wherein: The transmission time interval length configuration information includes the time length corresponding to each set of the control channels; The transmission time interval length configured by the transmission time interval length configuration information is in units of basic resource units.

8. The information transmission method according to any one of claims 1 to 7, characterized in that: Each set of description information of the control channel further includes: one or more items of puncturing configuration information, power control configuration information and beam configuration information.

9. The information transmission method according to claim 8, characterized in that: The puncturing configuration information is used to instruct the second communication node whether to use information on the resources used for transmitting the X sets of control channels for decoding when the data transmission resources used by the second communication node include resources used for transmitting the Y sets of control channels, where the X sets of control channels belong to the Y sets of control channels, X is a positive integer less than or equal to N, and Y is a positive integer greater than or equal to X and less than or equal to N; or The frequency hopping configuration information includes: one or more of a frequency hopping resource, a frequency domain hopping interval, and a time domain hopping interval; or, The power control configuration information includes: one or more of a downlink transmit power control parameter value, an uplink transmit power control parameter value, and an uplink power control mode; or, The beam configuration information includes: one or more of the number of transmit beams, the number of receive beams, the transmit beam switching period, the receive beam switching period and the beam training mode.

10. The information transmission method according to any one of claims 1 to 7, characterized in that: The control channel description list further includes transmission cycle information of the control channel description list.

11. The information transmission method according to any one of claims 1 to 7, characterized in that: Frequency domain resources scheduled by any two sets of the control channel description information in the N sets of control channel description information are completely different or partially overlapped.

12. The information transmission method according to any one of claims 1 to 7, characterized in that: The control channel description list also includes type information of M types of terminal devices, where M is a positive integer; The correspondence between the M types of terminal devices and the N sets of description information of the control channels is: each type of the terminal device corresponds to one or more sets of description information of the control channels.

13. The information transmission method according to any one of claims 1 to 7, characterized in that: The carrier frequency used by the first communication node to send the control channel description list is different from the carrier frequency used by the N sets of control channels; or Each set of the control channels is sent by the first communication node or other communication nodes.

14. The information transmission method according to any one of claims 1 to 7, characterized in that: The first communication node obtains a control channel description list, including: The first communication node generates the control channel description list; or, The first communication node receives the control channel description list sent by other communication nodes.

15. The information transmission method according to any one of claims 1 to 7, characterized in that: Before the first communication node sends the control channel description list to the second communication node, the method further includes: The first communication node obtains resources for sending the control channel description list through competition.

16. The information transmission method according to any one of claims 1 to 7, characterized in that: Before the first communication node sends the control channel description list to the second communication node, the method further includes: The first communication node sends a first notification message to the second communication node through signaling, where the first notification message instructs the first communication node to determine to send the control channel description list; The signaling is carried in a physical broadcast control channel.

17. The information transmission method according to any one of claims 1 to 7, characterized in that: After the first communication node sends the control channel description list to the second communication node, the method further includes: The first communication node sends a second notification message to the second communication node through signaling, where the second notification message indicates whether the control channel description list is updated.

18. The information transmission method according to any one of claims 1 to 7, characterized in that: The method further comprises: The first communication node sends a synchronization channel to the second communication node, and the resources used by the first communication node to send the control channel description list are the same as the resources used to send the synchronization channel.

19. An information transmission method, characterized in that: include: The second communication node receives a control channel description list sent by the first communication node, where the control channel description list includes N sets of control channel description information, where N is a positive integer, and each set of the control channel description information includes: one or more of control channel configuration information, reference signal configuration information, link resource configuration information, operating bandwidth configuration information, frequency hopping configuration information, and transmission time interval configuration information; The second communication node receives the control channel type indication information sent by the first communication node; The second communication node uses description information of designated n sets of control channels among the description information of the N sets of control channels to perform control channel and / or data channel processing, where n is a positive integer less than or equal to N; Before the second communication node receives the control channel description list sent by the first communication node, it also includes: the second communication node sends a random access signal to the first communication node; or, the second communication node sends a control channel description list request message to the first communication node; or, the second communication node obtains the system operating bandwidth.

20. The information transmission method according to claim 19, characterized in that: Before the second communication node receives the control channel description list sent by the first communication node, the method further includes: The second communication node receives a first notification message sent by the first communication node through signaling, where the first notification message instructs the first communication node to determine to send the control channel description list.

21. The information transmission method according to claim 19, wherein: After the second communication node receives the control channel description list sent by the first communication node, the method further includes: The second communication node receives a second notification message sent by the first communication node through signaling, where the second notification message indicates whether the control channel description list is updated.

22. The information transmission method according to claim 19, characterized in that: The method further comprises: The second communication node receives the synchronization channel sent by the first communication node, and the resources used by the control channel description list are the same as the resources used by the synchronization channel.

23. The information transmission method according to claim 19, wherein: The second communication node receiving the control channel description list is a second communication node set of a preset type; The preset type of second communication node set is a second communication node set supporting machine type communication, or a second communication node set supporting low-latency and high-reliability machine communication, or a second communication node set supporting low-rate machine communication, or a second communication node set supporting mobile broadband.

24. The information transmission method according to any one of claims 19 to 23, characterized in that: Each set of description information of the control channel further includes: one or more items of puncturing configuration information, power control configuration information and beam configuration information.

25. An information transmission system, characterized in that: include: a first communication node, and a second communication node connected to the first communication node; The first communication node includes a processor and a computer-readable storage medium, and the computer-readable storage medium stores instructions. When the instructions are executed by the processor, the information transmission method as described in any one of claims 1 to 18 is implemented; the second communication node includes a processor and a computer-readable storage medium, and the computer-readable storage medium stores instructions. When the instructions are executed by the processor, the information transmission method as described in any one of claims 19 to 24 is implemented.

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