Control information processing method
By adopting intelligent control information processing methods in mobile communication networks, the problem of poor flexibility in control information allocation resources is solved, and the service quality of the mobile network and resource allocation flexibility of control channels is improved.
Patent Information
- Application Number
- CN202411541213.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-02-11
AI Technical Summary
The flexibility of control information in mobile communication networks has poor flexibility in configuring resources, which affects system performance.
An intelligent control information processing method is proposed, which generates and sends control information to the second node through the first node, including the total number of resource units of the transmission block, the number of physical resource units of the resource unit, the modulation method, and the demodulation reference signal Information such as drawings and reception methods ensures flexible configuration of modulation methods and demodulation reference signals.
It improves the service quality of mobile networks, enhances the resource allocation flexibility of control channels, and meets the needs of efficient data transmission in 5G systems.
Smart Images
Figure CN119420457A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of mobile communications, and in particular to a control information processing method. Background Art
[0002] 5G will meet people's diverse business needs in various areas such as 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 with ultra-high traffic density, ultra-high connection density and ultra-high mobility, it can provide users with the ultimate business experience of ultra-high-definition video, virtual reality, augmented reality, cloud desktop, online games, etc. At the same time, 5G will also penetrate into the Internet of Things and various industries, deeply integrate with industrial facilities, medical equipment, transportation, etc., effectively meet the diversified business needs of vertical industries such as industry, medical care, transportation, and realize the true "Internet of Everything".
[0003] 5G application scenarios can be divided into two categories, namely Mobile Broadband (MBB) and Internet of Things (IoT). Among them, the main technical requirements for mobile broadband access are high capacity and high data rate to meet the growing demand for data services. The Internet of Things is mainly driven by the demand for machine type communication (MTC), which can be further divided into two types, including low-rate massive machine communication (MMC) and low-latency and high-reliability machine communication. Among them, for low-rate massive machine communication, massive nodes access at a low rate, the transmitted data packets are usually small, the interval time will be relatively long, and the cost and power consumption of such nodes will usually be low; for low-latency and high-reliability machine communication, it is mainly aimed at machine communication with relatively high real-time and reliability requirements, such as real-time alarms, real-time monitoring, etc.
[0004] In the fifth generation and future mobile communication systems, efficient design of control information is a key factor affecting system performance and needs to be improved urgently. Summary of the invention
[0005] Aiming at the problem of poor flexibility in resource configuration of control information in current mobile communication networks, an intelligent control information processing method is proposed.
[0006] The first aspect of the present application provides a control information processing method, the method comprising: a first node generates control information of a transmission block, and sends the control information to a second node, wherein the control information at least includes the total number of resource units of the transmission block, the number of physical resource units contained in the resource unit, a first modulation mode, a modulation mode specific to each resource unit, a first demodulation reference signal pattern, a demodulation reference signal pattern specific to each resource unit, a reception mode of a demodulation reference signal specific to each resource unit, and a semantic coding dictionary corresponding to the transmission block; wherein the modulation order of the first modulation mode is greater than or equal to the modulation order of the modulation mode specific to each resource unit, and the number of resource elements contained in the first demodulation reference signal pattern is less than or equal to the number of resource elements contained in each of the resource unit-specific demodulation reference signal patterns.
[0007] In combination with the first aspect, in a possible implementation method, the control information is divided into a first part and a second part for independent transmission, the first part at least includes the total number of resource units of the transmission block, the number of physical resource units included in the resource unit, the first modulation method, the modulation method specific to each resource unit, the first demodulation reference signal pattern, the reception method of the first demodulation reference signal, and the semantic coding dictionary corresponding to the transmission block, and the second part at least includes the demodulation reference signal pattern specific to each resource unit and the reception method of the demodulation reference signal specific to each resource unit.
[0008] In combination with the first aspect, in a possible implementation, the reception method of the first demodulation reference signal is a standard default configuration, or is determined by negotiation between the first node and the second node, or the reception method of the first demodulation reference signal is negotiated in the control information.
[0009] In combination with the first aspect, in a possible implementation, the first modulation method uses an absolute index method to select a modulation method from a total modulation table, and each resource unit-specific modulation method uses an absolute index method and a relative index method to select a modulation method from the total modulation table.
[0010] In combination with the first aspect, in a possible implementation method, when the relative index value of a resource unit-specific modulation mode is greater than 2, it is determined that the content of the transmission block carried on the resource unit needs to be repeatedly transmitted, wherein the resource unit used for the repeated transmission is physically adjacent to the resource unit, and the number of repeated transmissions is a standard default configuration, or is determined by negotiation between the first node and the second node.
[0011] In combination with the first aspect, in a possible implementation, the number of repeated transmissions is determined by rounding up ((relative index / 1.5)+alpha), where the value of the variable alpha is related to the length of the transmission block.
[0012] In combination with the first aspect, in a possible implementation method, when the bit length of the transmission block is greater than or equal to 2048 and less than or equal to 4096, the value of the variable alpha is 0.25; when the bit length of the transmission block is greater than 4096 and less than or equal to 6144, the value of the variable alpha is 0.65; when the bit length of the transmission block is greater than 6144, the value of the variable alpha is 1.
[0013] In combination with the first aspect, in a possible implementation manner, the amount of calculation required for the reception method of each resource unit-specific demodulation reference signal needs to be notified to the first node by the second node through signaling before the control information is sent.
[0014] In combination with the first aspect, in a possible implementation manner, the amount of calculation required for the reception method of the first demodulation reference signal is greater than or equal to the amount of calculation required for the reception method of each resource unit-specific demodulation reference signal.
[0015] In combination with the first aspect, in one possible implementation, when the second node successfully receives the first part and fails to successfully receive the second part, the second node receives the demodulation reference signal according to the first demodulation reference signal pattern, and the second node feeds back information on the failure to successfully receive the second part to the first node.
[0016] The present application provides a control information processing method, the method comprising: a first node generates control information of a transmission block, and sends the control information to a second node, wherein the control information at least includes the total number of resource units of the transmission block, the number of physical resource units contained in the resource unit, a first modulation mode, a modulation mode specific to each resource unit, a first demodulation reference signal pattern, a demodulation reference signal pattern specific to each resource unit, a reception mode of a demodulation reference signal specific to each resource unit, and a semantic coding dictionary corresponding to the transmission block; wherein the modulation order of the first modulation mode is greater than or equal to the modulation order of the modulation mode specific to each resource unit, and the number of resource elements contained in the first demodulation reference signal pattern is less than or equal to the number of resource elements contained in the demodulation reference signal pattern specific to each resource unit. Compared with the prior art, the control information processing method provided by the present application overcomes the problem of poor flexibility in configuring transmission resources for the control channel, and improves the service quality of the mobile network. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A flowchart of a control information processing method provided in an embodiment of the present application. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.
[0019] The term "and / or" in this application can be a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.
[0020] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or modules is not necessarily limited to those steps or modules that are clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products or devices.
[0021] In the fifth generation and future mobile communication systems, efficient design of control information is a key factor affecting system performance and needs to be improved urgently.
[0022] In view of this, the present application provides a control information processing method. Figure 1 , the method comprising:
[0023] S101. The first node generates control information of a transmission block, wherein the control information at least includes the total number of resource units of the transmission block, the number of physical resource units contained in the resource unit, a first modulation mode, a modulation mode specific to each resource unit, a first demodulation reference signal pattern, a demodulation reference signal pattern specific to each resource unit, a reception mode of a demodulation reference signal specific to each resource unit, and a semantic coding dictionary corresponding to the transmission block; wherein the modulation order of the first modulation mode is greater than or equal to the modulation order of the modulation mode specific to each resource unit, and the number of resource elements contained in the first demodulation reference signal pattern is less than or equal to the number of resource elements contained in the demodulation reference signal pattern specific to each resource unit.
[0024] It should be noted that the first node is a base station and the second node is a terminal.
[0025] The base station generates control information for a transmission block, wherein the control information includes at least the total number of resource units of the transmission block, the number of physical resource units contained in the resource unit, the first modulation mode, a modulation mode specific to each resource unit, a first demodulation reference signal pattern, a demodulation reference signal pattern specific to each resource unit, a reception mode of a demodulation reference signal specific to each resource unit, and a semantic coding dictionary corresponding to the transmission block.
[0026] The first modulation mode is a general modulation mode, and each resource unit-specific modulation mode is adjusted based on it. Generally, an absolute value description method is adopted, and each resource unit-specific modulation mode is relatively adjusted based on it, thereby saving control overhead.
[0027] The semantic coding dictionary tells the terminal which dictionary to use to interpret the content of the received transport block, and reduces the data volume of the transport block through semantic coding, thereby improving the spectrum efficiency of the system.
[0028] The modulation order of the first modulation mode is greater than or equal to the modulation order of each unit-specific modulation mode, and the number of resource elements included in the first demodulation reference signal pattern is less than or equal to the number of resource elements included in the demodulation reference signal pattern specific to each resource unit.
[0029] The first demodulation reference signal pattern is the most basic pattern. When the terminal cannot receive the demodulation reference signal pattern description information specific to each resource unit, the terminal can perform channel estimation based on the first demodulation reference signal pattern.
[0030] S102: The first node sends control information to the second node.
[0031] The base station sends the control information to the terminal.
[0032] In one implementation, the control information is divided into a first part and a second part for independent transmission, and the first part at least includes the total number of resource units of the transmission block, the number of physical resource units contained in the resource unit, the first modulation method, the modulation method dedicated to each resource unit, the first demodulation reference signal pattern, the reception method of the first demodulation reference signal, and the semantic coding dictionary corresponding to the transmission block.
[0033] The second part at least includes a demodulation reference signal pattern specific to each resource unit and a reception method for a demodulation reference signal specific to each resource unit. The advantage of this is to ensure as much as possible that the number of bits contained in the first part is fixed, and the flexibly adjusted bit content is transmitted in the second part. Preferably, the first part may also include description information of the second part, at least including information such as the transmission format, used resources, and number of bits of the second part. The advantage of this is to increase the flexibility of control information transmission while reducing the blind detection complexity of the terminal as much as possible.
[0034] In one implementation, the reception mode of the first demodulation reference signal is a standard default configuration, or is determined by negotiation between the first node and the second node, or the reception mode of the first demodulation reference signal is negotiated in the control information.
[0035] In one implementation, the first modulation mode selects the modulation mode from the total modulation table using an absolute index, and each resource unit-specific modulation mode selects the modulation mode from the total modulation table using an absolute index and a relative index. This has the advantage of reducing the control information overhead.
[0036] In one implementation, when the relative index value of a resource unit-specific modulation mode is greater than 2, it is determined that the content of the transmission block carried by the resource unit needs to be repeatedly transmitted, wherein the resource unit used for repeated transmission is physically adjacent to the resource unit, and the number of repeated transmissions is a standard default configuration, or is determined by negotiation between the first node and the second node. The benefit of this is that the content transmitted on the resource unit with poor channel transmission conditions is further protected, data retransmission is avoided as much as possible, and the spectrum efficiency of the system is improved.
[0037] In one implementation, the number of repeated transmissions is determined by rounding up ((relative index / 1.5)+alpha), where the value of the variable alpha is related to the length of the transmission block. The reason for this is that the worse the channel conditions are, the more the number of transmissions of the content on the corresponding resource unit should be increased.
[0038] In one implementation, when the bit length of the transmission block is greater than or equal to 2048 and less than or equal to 4096, the value of the variable alpha is 0.25; when the bit length of the transmission block is greater than 4096 and less than or equal to 6144, the value of the variable alpha is 0.65; when the bit length of the transmission block is greater than 6144, the value of the variable alpha is 1. The reason for this is that the larger the data packet, the greater the resource consumption of retransmission. In order to avoid retransmission, the number of repetitions of the content transmitted on the resource unit with poor channel conditions is increased as much as possible.
[0039] In one implementation, the amount of calculation required for receiving the specific demodulation reference signal of each resource unit needs to be notified to the first node by the second node through signaling before the control information is sent. The advantage of this is that the base station can select the most appropriate demodulation reference signal configuration for the terminal according to the receiver algorithm of the terminal, improve the accuracy of the terminal channel recovery, and thus improve the system spectrum efficiency.
[0040] In one implementation, the amount of computation required for receiving the first demodulation reference signal is greater than or equal to the amount of computation required for receiving the demodulation reference signal specific to each resource unit. The reason for this is that the first demodulation reference signal occupies resources, which necessarily requires the use of a more complex receiver algorithm.
[0041] In one implementation, when the second node successfully receives the first part and fails to successfully receive the second part, the second node receives the demodulation reference signal according to the first demodulation reference signal pattern, and the second node feeds back information that the second part has not been successfully received to the first node. The reason for doing so is that the base station can determine the method for sending subsequent control information according to the feedback information of the terminal, thereby improving the service quality of the system.
[0042] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.
[0043] In the embodiments provided in this application, it should be understood that the disclosed methods can be implemented in other ways without exceeding the spirit and scope of this application. The current embodiment is only an illustrative example and should not be used as a limitation. The specific content given should not limit the purpose of this application. For example, some features can be ignored or not executed.
[0044] The technical means disclosed in the present application are not limited to the technical means disclosed in the above-mentioned implementation methods, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also regarded as the protection scope of this application.
[0045] The above is a detailed introduction to a control information processing method provided by an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein by equivalents; and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A control information processing method, characterized in that: The method comprises: The first node generates control information of the transport block, and sends the control information to the second node, wherein the control information at least includes the total number of resource units of the transport block, the number of physical resource units included in the resource unit, the first modulation mode, the modulation mode dedicated to each resource unit, the first demodulation reference signal pattern, the demodulation reference signal pattern dedicated to each resource unit, the reception mode of the demodulation reference signal dedicated to each resource unit, and the semantic coding dictionary corresponding to the transport block; The modulation order of the first modulation mode is greater than or equal to the modulation order of the modulation mode specific to each resource unit, and the number of resource elements included in the first demodulation reference signal pattern is less than or equal to the number of resource elements included in the demodulation reference signal pattern specific to each resource unit.
2. The control information processing method according to claim 1, characterized in that: The control information is divided into a first part and a second part for independent transmission, the first part at least includes the total number of resource units of the transmission block, the number of physical resource units included in the resource unit, the first modulation mode, the modulation mode dedicated to each resource unit, the first demodulation reference signal pattern, the reception mode of the first demodulation reference signal, and the semantic coding dictionary corresponding to the transmission block, and the second part at least includes the demodulation reference signal pattern dedicated to each resource unit and the reception mode of the demodulation reference signal dedicated to each resource unit.
3. The control information processing method according to claim 1, characterized in that: The receiving mode of the first demodulation reference signal is a standard default configuration, or is determined by negotiation between the first node and the second node, or the receiving mode of the first demodulation reference signal is negotiated in the control information.
4. The control information processing method according to claim 1, characterized in that: The first modulation mode selects the modulation mode from the total modulation table by using an absolute index method, and each resource unit-specific modulation mode selects the modulation mode from the total modulation table by using an absolute index method and a relative index method.
5. The control information processing method according to claim 4, characterized in that: When the relative index value of a resource unit-specific modulation mode is greater than 2, it is determined that the content of the transmission block carried on the resource unit needs to be repeatedly transmitted, wherein the resource unit used for repeated transmission is physically adjacent to the resource unit, and the number of repeated transmissions is a standard default configuration, or is determined by negotiation between the first node and the second node.
6. The control information processing method according to claim 5, characterized in that: The number of repeated transmissions is determined by rounding up ((relative index / 1.5)+alpha), where the value of the variable alpha is related to the length of the transmission block.
7. The control information processing method according to claim 6, characterized in that: When the bit length of the transmission block is greater than or equal to 2048 and less than or equal to 4096, the value of the variable alpha is 0.25; when the bit length of the transmission block is greater than 4096 and less than or equal to 6144, the value of the variable alpha is 0.65; when the bit length of the transmission block is greater than 6144, the value of the variable alpha is 1.
8. The control information processing method according to claim 1, characterized in that: The amount of calculation required for the reception method of the specific demodulation reference signal of each resource unit needs to be notified to the first node by the second node through signaling before the control information is sent.
9. The control information processing method according to claim 3, characterized in that: The amount of calculation required by the receiving method of the first demodulation reference signal is greater than or equal to the amount of calculation required by the receiving method of each resource unit-specific demodulation reference signal.
10. The control information processing method according to claim 2, characterized in that: When the second node successfully receives the first part but fails to successfully receive the second part, the second node receives the demodulation reference signal according to the first demodulation reference signal pattern, and the second node feeds back information that the second part has not been successfully received to the first node.