CN113727447B - Intermediate node control method and equipment - Google Patents
Intermediate node control method and equipment Download PDFInfo
- Publication number
- CN113727447B CN113727447B CN202110839121.5A CN202110839121A CN113727447B CN 113727447 B CN113727447 B CN 113727447B CN 202110839121 A CN202110839121 A CN 202110839121A CN 113727447 B CN113727447 B CN 113727447B
- Authority
- CN
- China
- Prior art keywords
- control information
- control
- information
- time
- period
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 66
- 238000010295 mobile communication Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 87
- 238000004891 communication Methods 0.000 claims description 22
- 238000004590 computer program Methods 0.000 claims description 12
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 14
- 230000001174 ascending effect Effects 0.000 description 10
- 230000011664 signaling Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000001210 attenuated total reflectance infrared spectroscopy Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 101001077604 Homo sapiens Insulin receptor substrate 1 Proteins 0.000 description 3
- 101001077600 Homo sapiens Insulin receptor substrate 2 Proteins 0.000 description 3
- 102100025087 Insulin receptor substrate 1 Human genes 0.000 description 3
- 102100025092 Insulin receptor substrate 2 Human genes 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001149 cognitive effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The application discloses an intermediate node control method, which is used for a mobile communication system, wherein the mobile communication system comprises network equipment, an intermediate device and user equipment, and service signals generated by the network equipment are directly received by the user equipment after being radiated by a transmitter or are received by the user equipment after passing through the intermediate device. The method comprises the following steps: the downlink control information comprises first control information and second control information; the first control information comprises identification information of an intermediate device; the second control information includes phase information corresponding to the identification information. The application also includes devices and systems for implementing the methods. The method and the device solve the problem of how to realize the access and control of the intermediate node facilities in the mobile communication system with the intermediate node facilities.
Description
Technical Field
The present disclosure relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for controlling an intermediate node.
Background
The intermediate device is based on controlling the propagation of electromagnetic waves in a communication channel by means of reflection or transmission, etc. to improve the performance of the communication system. For example, intelligent supersurfaces (Intelligent Reflecting Surface, IRS) are based on the classical concept of reconfigurable reflective arrays, in particular IRS is a meta-surface consisting of a large number of tiny elements that diffusely reflect an incident signal in a controlled manner.
The use of nodes comprising intermediate devices in communication systems increases the demands on the communication system for real-time reconfigurability and control. Specifically, the base station controls parameters such as the phase of the super surface or other aerial signal shaping devices to better control the diffuse reflection incident signals to realize the controllable propagation of electromagnetic waves in a communication channel, so as to improve the performance of the communication system in terms of coverage, capacity, energy efficiency and the like. Since the intermediate node is an entity newly introduced into the communication system, a base station is required to identify the intermediate node for better service of users in the network. How to realize the control of the base station to the intermediate device, no method for processing control information between the base station and the Zhang Hongjian node exists at present.
Disclosure of Invention
The application provides an intermediate node control method and equipment, which solve the problem of how to realize access and control of an intermediate device in a mobile communication system with the intermediate device.
In a first aspect, an embodiment of the present application provides an intermediate node control method, configured to be used in a mobile communication system, where the mobile communication system includes a network device, an intermediate device, and a user device, and a signal generated by the network device is radiated by a transmitter and then directly received by the user device, or is reflected by the intermediate device and then received by the user device, where the method includes the following steps:
the downlink control information comprises first control information and second control information;
the first control information comprises identification information of an intermediate device;
the second control information includes phase information corresponding to the identification information.
Preferably, the configuration information includes a period of the first time-frequency resource pool, which is a first transmission period; the first time-frequency resource pool is used for sending the downlink control information.
Preferably, the configuration information includes a period of the second time-frequency resource, which is a second transmission period; the second time-frequency resource is used for sending the second control information; the second time-frequency resource is dedicated to an intermediary device conforming to the identification information.
Preferably, the configuration information includes a period of a third time-frequency resource, which is a third transmission period; the third time-frequency resource is used for sending third control information, and the third control information comprises an indication of a second sending period corresponding to the identification information; the third control information is common to a plurality of intermediate devices within range of the base station.
It may be further preferred that the second transmission period is N times the first transmission period; the third transmission period is M times of the second transmission period; wherein M and N are integers and M is an integer multiple of N; m is base station configuration information, and N is determined by third control information.
Preferably, the method, for a network device, according to the embodiment of the first aspect of the present application includes the following steps:
the network equipment sends downlink control information which comprises first control information and second control information; the first control information comprises identification information of an intermediate device; the second control information includes phase information corresponding to the identification information.
Preferably, before said step, the following steps are included:
the network equipment receives a random access request from an intermediate device control equipment and distributes the identification information for the intermediate device;
the network device receives upstream control information from an intermediary device control device, the upstream control information comprising a set of phase adjustment parameters of the intermediary device corresponding to the identification information.
Preferably, the method further comprises the steps of:
the network device broadcasts third control information, which contains an indication of a second transmission period;
the period of the second time-frequency resource dedicated to the second control information is the second transmission period;
and the period of the third time-frequency resource dedicated to the third control information is the third transmission period.
The method for controlling the equipment comprises the following steps:
the control equipment receives downlink control information, wherein the downlink control information comprises first control information and second control information; the first control information comprises identification information of an intermediate device; the second control information includes phase information corresponding to the identification information.
Preferably, before said step, the following steps are further included:
the control equipment sends a random access request;
the control device transmits uplink control information containing a set of phase adjustment parameters of the intermediate device corresponding to the identification information.
Preferably, the method further comprises the steps of:
the control device receives third control information, which contains an indication of a second transmission period;
the period of the second time-frequency resource dedicated to the second control information is the second transmission period;
and the period of the third time-frequency resource dedicated to the third control information is the third transmission period.
In a second aspect, embodiments of the present application further provide a control device, configured to implement a method according to any one of the embodiments of the first aspect of the present application. The control device is used for sending a random access request; receiving first control information; transmitting a set of phase adjustment parameters of an intermediary device corresponding to the identification information; receiving second control information; and adjusting an intermediate device corresponding to the identification information according to the first control information and the second control information.
In a third aspect, an embodiment of the present application further proposes a network device, configured to implement a method according to any one of the embodiments of the first aspect of the present application. The network device is configured to receive a random access request; distributing the identification information to the intermediate device; transmitting first control information; receiving a set of phase adjustment parameters of an intermediary device corresponding to the identification information; and sending second control information.
In a fourth aspect, the present application also proposes a communication device comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to any of the embodiments of the present application.
In a fifth aspect, the present application also proposes a computer readable medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any of the embodiments of the present application.
In a sixth aspect, the present application further proposes a mobile communication system, comprising at least 1 network device according to any one of the embodiments of the present application and/or at least 1 control device according to any one of the embodiments of the present application.
The above-mentioned at least one technical scheme that this application embodiment adopted can reach following beneficial effect:
the present invention proposes a control method and apparatus for a mobile communication system with an intermediate device, transmitting control information between a base station and an intermediate node for controlling the phase of the intermediate device. The design method of the patent realizes the wireless control of the base station to the intermediate devices such as the super-surface, solves the control problem of the base station to a plurality of intermediate devices under the network, ensures that the base station sends control information to all intermediate nodes under the network on fixed sending time and frequency resources, reduces the power consumption, and simultaneously avoids the interference and the conflict of the control information received by a plurality of super-surfaces.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a schematic diagram of an IRS-enhanced multi-antenna wireless communication system;
FIG. 2 is a flowchart of an embodiment of a method according to the present application;
fig. 3 is a schematic diagram of a first time-frequency resource pool and a first transmission period;
fig. 4 is a schematic diagram of a third time-frequency resource pool and a third transmission period;
fig. 5 is a schematic diagram of a first, second, and third time-frequency resource pool and a corresponding transmission period;
FIG. 6 is a flow chart of an embodiment of the method of the present invention for a network device;
FIG. 7 is a flow chart of an embodiment of the method of the present invention for controlling a device;
FIG. 8 is a schematic diagram of an embodiment of a network device;
FIG. 9 is a schematic diagram of an embodiment of a control device;
fig. 10 is a schematic structural diagram of a network device according to another embodiment of the present invention;
fig. 11 is a block diagram of a control apparatus of another embodiment of the present invention.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of an IRS enhanced multi-antenna wireless communication system.
IRS is a passive device, similar to dish antennas used in satellite receivers, that reflects signals to improve signal-to-noise ratio. The different phase shift patterns of its different meta-surfaces result in the incident signal being reflected as a light beam in different directions. IRS is a complement to traditional massive MIMO technology, unlike massive MIMO systems and cooperative relaying, although IRS also attempts to improve propagation conditions by deploying active hardware components, IRS requires little operating power and is therefore suitable for implementation in energy-limited systems. Furthermore, IRSs can naturally operate in full duplex mode without the need for expensive self-interference cancellation. Furthermore, IRSs are very thin materials that can be deployed on building facades and interior walls. Thus, once a legacy network is deployed, one or more IRSs may be flexibly deployed to mitigate detected coverage holes or to provide additional capacity in areas where needed.
The deployment of intelligent supersurfaces in conventional MIMO systems facilitates two beamforming, as shown in fig. 1, one IRS is deployed in one system to facilitate communication between multiple antenna transmitters and users. An information signal is radiated from the transmitter, a direct path for communication between the transmitter and the user is possible, and at the same time the IRS receives the information signal and will reflect this signal, the main direction of which can be controlled by means of an infrared controller. In particular, a suitable phase shift is introduced on all meta-atoms to deliberately create a coherent combination of their respective scattered signals, thereby producing a signal beam focused on the user, the larger the surface, the narrower the beam, a strategy called energy focusing.
On the other hand, if there is no direct path due to severe shadowing or blockage, the transmitter should beamform the IRS. The IRS may then act as a non-amplified full duplex relay reflecting and focusing the signal to the terminal device UE to facilitate end-to-end communication. In fig. 1, consider a scenario in which a multi-antenna transmitter serves user 1 in the presence of user 2. It is assumed that the two UEs have different security levels, wherein the message of user 1 cannot be decoded on user 2. In this case, by adjusting the phase of the scattered signal to stop the signal at user 2, destructive reflection can be performed at the IRS, a strategy called energy nulling.
With these two principles, IRSs are expected to have wide applications in various communication systems, including interference management, coverage extension, and capability improvement, such as wireless communication systems, cognitive radio networks, physical layer security systems, and the like.
The intermediate device of the present application controls propagation of electromagnetic waves in a communication channel by reflection, transmission, or the like to improve communication system performance, and is not limited to use of IRS technology.
FIG. 2 is a flowchart of an embodiment of a method according to the present application;
in a first aspect, an embodiment of the present application provides an intermediate node control method, configured to be used in a mobile communication system, where the mobile communication system includes a network device, an intermediate device, and a user device, and a signal generated by the network device is radiated by a transmitter and then directly received by the user device, or is reflected (or refracted) by the intermediate device and then received by the user device, where the method includes the following steps:
step 101, the system broadcasts message transmission, random access procedure initiated by the intermediate node.
The system comprises one or more intermediate nodes; the intermediate node comprises a control device, one or more intermediate devices (e.g. intelligent supersurfaces). Signaling communication is enabled between the intermediate node and the base station.
For example, when one or more intermediate devices are configured in the system, the system broadcast message includes configuration information of system bandwidth and time-frequency resources, which are issued to the intermediate node and are dedicated to one or more intermediate nodes (or intermediate devices). The control device of the intermediate device can periodically receive the synchronous signal and the downlink broadcast information of the base station as the mobile terminal, realize the synchronization with the base station, and receive the configuration information of the special system bandwidth and the time-frequency resource issued by the intermediate node in the downlink broadcast information.
As another example, the control device of the intermediate node facility initiates random access. The random access request and the corresponding random access procedure of the base station are the working procedures of the terminal device and the network device in the mobile communication system of the prior art.
Step 102, the uplink information includes a control parameter set of the intermediate device.
The uplink information here may be uplink control information or information in a random access request, and refers to information from the intermediate node control device. The phase control capability of the ID of the intermediate device is reported by the control device to the base station, herein referred to as "control parameter set", e.g. a set of phase adjustment parameters, including phase range, phase adjustment granularity.
Step 103, the downlink control information includes first control information, where the first control information includes identification information of the intermediate device;
in the above step, the dedicated time-frequency resource pool is periodically configured for sending downlink control information, where the period of the dedicated time-frequency resource pool is the first sending period. Preferably, the configuration information includes a period of the first time-frequency resource pool, which is a first transmission period; the first time-frequency resource pool is used for sending the downlink control information. The time-frequency location of the first time-frequency resource pool and the first transmission period are signaling configured or preconfigured (as in fig. 3).
The identification Information (ID) of the super surface is assigned by a base station. The downlink control information at least comprises first control information, and is used for distributing identification information to devices in the intermediate node initiating random access, and further, when one or more intermediate devices are accessed into the system, the identification information is distributed to each intermediate device.
Step 104, configuring a second sending period, a third sending period and transmitting downlink control information.
For example, the configuration information includes a period of the second time-frequency resource, which is a second transmission period; the second time-frequency resource is used for sending the second control information. Preferably, the second time-frequency resource is dedicated to an intermediate device conforming to the identification information, that is, the second control information is dedicated to the intermediate device corresponding to the identification information.
For another example, the configuration information includes a period of the third time-frequency resource, which is a third transmission period; the third time-frequency resource is used for sending third control information, and the third control information comprises an indication of a second sending period corresponding to the identification information; the third control information is common to a plurality of intermediate devices within range of the base station (see fig. 4).
The indication of the second transmission period may be transmitted through the third control information, and the value of the second transmission period may also be preset by the system, so that the base station (network device) and the intermediate node facility (control device) of the system implement communication based on the same time and frequency domain resource parameters.
Further preferably, the second transmission period is N times the first transmission period; the third transmission period is M times of the second transmission period; wherein M and N are integers and M is an integer multiple of N; m is base station configuration information, N is base station configuration information or is determined by third control information.
Step 105, second control information is transmitted to implement phase control of the intermediate device.
The downlink control information comprises second control information, and the second control information comprises phase information corresponding to the identification information.
And when the downlink control information comprises phase information corresponding to the identification information, the identification information is used for identifying a specific intermediate device, and the second control signaling can be used for implementing phase control on the specific intermediate device.
Fig. 3 to 5 are diagrams of time-frequency resources and transmission periods.
How the control information is sent periodically is further described below. And periodically configuring a special time-frequency resource pool for transmitting control information, wherein the period of the special time-frequency resource pool is a first transmission period.
And configuring a second time-frequency resource for transmitting second control information, wherein the second time-frequency resource is special for the intermediate devices with specific identification, namely, each intermediate device is configured with a special second time-frequency resource, the second time-frequency resource has the same size as the time-frequency resource of different intermediate devices, and the time-frequency position where the second time-frequency resource is located corresponds to the intermediate device identification information (IRS ID).
And periodically configuring third time-frequency resources in the special time-frequency resource pool for transmitting third control information, wherein the third time-frequency resources are common to all intermediate nodes, and the period of the third time-frequency resources is a third transmission period. The third transmission period is M times the first transmission period, where M is a positive integer and M is a signaling configuration or pre-configuration. For example, as shown in fig. 4, the third transmission period is 4 times the first transmission period, i.e., m=4. The third time-frequency resource is a fixed size and fixed location of the pre-configuration or signaling configuration.
As shown in table 1, considering that the base station controls a plurality of intermediate devices at the same time, the third control information transmitted by the third time-frequency resource includes second transmission period information corresponding to the intermediate device identification information (indicated by IRS ID) that all the base station needs to control.
For example, P intermediate devices transmit phase control information for the P-th intermediate device at transmission timings corresponding to each second control information transmission period. The second transmission period T2 (p) is N times the first transmission period, where N is a positive integer.
Table 1, second transmission period corresponding to IRS ID
| IRS ID | Second transmission period |
| 0 | T2(0) |
| 1 | T2(1) |
| … | …… |
| P-1 | T2(P-1) |
As another embodiment of the present application, as shown in table 2, at the transmission time of the third transmission period, the third control information on the third time-frequency resource is: the second transmission period of IRS1 and IRS2 is 1 time the first transmission period, and the second transmission period of IRS3 is 2 times the first transmission period.
TABLE 2 setting second transmit period function for each RIS
| IRS ID | Third control information |
| 0 | 1 |
| 1 | 1 |
| … | 2 |
According to the configured sending period of the third control information, the intermediate device receives the second control information on a second time-frequency resource corresponding to the time-frequency position bound with the self ID in a special time-frequency resource pool on the configured sending period.
The second time-frequency resources are defined as a fixed size of the pre-configuration or the signaling configuration, and the first time-frequency resources pool or the second time-frequency resources accommodated by the first time-frequency resources pool excluding the third time-frequency resources may be Time Division Multiplexed (TDM), frequency Division Multiplexed (FDM), or both time division multiplexed and frequency division multiplexed and multiplexed with the code domain resources at the same time. The index of the second time-frequency resource is defined by TDM as time ascending and then code domain ascending, the index of the second time-frequency resource is defined by FDM as frequency ascending and then code domain ascending, the index of the second time-frequency resource is defined by FDM+TDM as time ascending and then frequency ascending and then code domain ascending, or the index of the second time-frequency resource is defined by frequency ascending and then time ascending and then code domain ascending. That is, time domain resources or frequency domain resources are selected preferentially, and code domain resources are selected when the resources are insufficient.
And each intermediate node receives the second time-frequency resource of the control information and is bound with the ID of the intermediate device, and the intermediate node receives the second control information from the base station at fixed time according to the second time-frequency resource corresponding to the ID of the intermediate node, and the second control information adjusts the phase of the super-surface reflection.
The index of the identification information (IRS ID) of the intermediate device corresponding to the second time-frequency resource is as follows:
second time-frequency resource index=irs ID mod (l×y)
Wherein L is the second time-frequency resource number of the candidate resource, and Y is the code word number on the time-frequency resource.
As shown in fig. 3, according to the indication of the third control information, the third transmission period of IRS1 and IRS2 is 1 time of the first transmission period, the third transmission period of IRS3 is 2 times of the first transmission period, and the positions and indexes of the second time-frequency resources of IRS1, IRS2 and IRS3 are obtained by calculation according to IRS ID.
The design of the second transmission period ensures that the base station transmits control information to all the super surfaces under the network on fixed transmission time and frequency resources, and reduces power consumption. The design of the second time-frequency resource ensures the time-frequency resource fixation of the intermediate devices with corresponding IDs, and avoids the interference and conflict of information received by a plurality of intermediate devices.
Fig. 6 is a flow chart of an embodiment of the method of the present invention for a network device.
Preferably, in the method according to the embodiment of the first aspect of the present application, the network device is configured to receive, by the intermediate node, control information sent by the base station, where the control information includes ID identification information of the intermediate device, and phase control information corresponding to the ID of the intermediate device. Comprises the following steps 201 to 205:
step 201, the network device receives a random access request from an intermediate node control device, and distributes the identification information for the intermediate device.
The identification ID information of the intermediate device is assigned by the base station. The phase control capability of the intermediate device corresponding to the ID is reported to the base station by the intermediate node.
Step 202, the network device receives uplink information from the intermediate node control device, where the uplink information includes an intermediate device phase adjustment parameter set corresponding to the identification information.
Step 203, the network device sends downlink control information, which includes first control information; the first control information includes identification information of the intermediate device.
The dedicated time-frequency resource pool for transmitting the control information is configured to have periodicity, and the period of the dedicated time-frequency resource pool is a first transmission period.
Step 204, the network device broadcasts third control information, which includes an indication of a second transmission period;
the period of the second time-frequency resource dedicated to the second control information is the second transmission period; and the period of the third time-frequency resource dedicated to the third control information is the third transmission period.
And periodically configuring second time-frequency resources in the special time-frequency resource pool for transmitting second control information, wherein the second time-frequency resources are special for the intermediate devices, namely each intermediate device is configured with special second time-frequency resources, the period of the second time-frequency resources is a second transmission period, and the second control information is used for adjusting the reflection (or refraction) phase of the intermediate device corresponding to the identification ID.
And periodically configuring third time-frequency resources in the special time-frequency resource pool for transmitting third control information, wherein the third time-frequency resources are common to intermediate devices controlled by the base station, the period of the third time-frequency resources is a third transmission period, and the third control information is IRS IDs (inter-radio resource identifier) required to be controlled by the base station and second transmission period information corresponding to the IRS IDs.
The third transmission period and the second transmission period are each an integer multiple of the first transmission period.
Step 205, the network device sends downlink control information, which includes second control information; the second control information includes phase information corresponding to the identification information.
Fig. 7 is a flow chart of an embodiment of the method of the present invention for controlling a device.
The method for controlling the equipment comprises the following steps:
step 301, the control device of the intermediate node sends a random access request;
the intermediate node periodically receives the synchronization signal and the downlink broadcast information of the base station, and receives the synchronization signal for frame synchronization, time slot synchronization and symbol synchronization between the base station and the intermediate node, and receives the downlink broadcast information to obtain the configuration of the system bandwidth and the time-frequency resource size of the base station for controlling the intermediate node, so that the base station can conveniently send and receive the wireless control signal of the intermediate node and initiate random access to the intermediate node.
Step 302, the control device sends uplink information, where the uplink information includes a set of adjustment parameters of the intermediate device corresponding to the identification information.
The intermediate device reports its own capability information including information such as phase adjustment granularity, etc. for the base station to adjust the phase of the incident wave by the intermediate device.
Step 303, the control device receives downlink control information, where the downlink control information includes first control information, and the first control information includes identification information of an intermediate device; and as a response after the intermediate node initiates the random access, the intermediate node receives the identification information distributed by the base station.
Step 304, the control device receives third control information, which includes an indication of a second transmission period;
the period of the second time-frequency resource dedicated to the second control information is the second transmission period; and the period of the third time-frequency resource dedicated to the third control information is the third transmission period.
Step 305, the control device receives downlink control information, which includes second control information; the second control information includes phase information corresponding to the identification information.
The intermediate node receives a wireless control signal from the base station for controlling the phase of the intermediate device, and the control information is included with the ID identification information of the intermediate device, and the specific phase control is corresponding to each intermediate device ID.
Fig. 8 is a schematic diagram of an embodiment of a network device.
The embodiment of the application also provides a network device, and the network device is used for: receiving a random access request; distributing the identification information to the intermediate device; transmitting first control information; receiving a set of phase adjustment parameters of an intermediary device corresponding to the identification information; and sending second control information.
In order to implement the above technical solution, the network device 400 provided in the present application includes a network sending module 401, a network determining module 402, and a network receiving module 403.
The network sending module is configured to generate and send the downlink control information, including at least one of the first control information, the second control information, and the third control information, and further configured to send a synchronization signal and downlink broadcast information, where the configuration includes a system bandwidth and a time-frequency resource size of an intermediate device.
The network determining module is used for determining the first transmission period, the second transmission period, the third transmission period and the identification information of the intermediate device, and is also used for determining the phase adjustment indication special for the intermediate device and the indication about the second transmission period.
The network receiving module is configured to receive uplink random access request information and an intermediate device phase adjustment parameter set corresponding to the identification information.
Specific methods for implementing the functions of the network sending module, the network determining module and the network receiving module are described in the embodiments of the methods of the present application, and are not described here again.
The network device described in the present application may be a base station device or a network side processing device connected to a base station.
Fig. 9 is a schematic diagram of an embodiment of a control device.
The application also proposes a control device, using the method of any one of the embodiments of the application, for: sending a random access request; receiving first control information; transmitting an intermediate device phase adjustment parameter set corresponding to the identification information; receiving second control information; and adjusting an intermediate device corresponding to the identification information according to the first control information and the second control information.
In order to implement the above technical solution, the control apparatus 500 for controlling the intermediate device 504 provided in the present application includes a node sending module 501, a node determining module 502, and a node receiving module 503.
The node receiving module is configured to receive the downlink control information, including at least one of the first control information, the second control information, and the third control information, and further configured to send a synchronization signal and downlink broadcast information, where the configuration includes a system bandwidth and a time-frequency resource size of an intermediate node.
The node determining module is configured to determine, according to the first control information, the second control information, and the third control information, intermediate device identification information, phase control information, second transmission period information, and the like, and change reflection (or refraction) characteristics of the intermediate device according to the second transmission period using the phase control information.
The node sending module is used for sending a random access request and a phase control parameter set of the intermediate device.
The control device described in the present application may refer to a mobile terminal connected to an intermediate device or other device dedicated to controlling the intermediate device.
Fig. 10 shows a schematic structural diagram of a network device according to another embodiment of the present invention. As shown, the network device 600 includes a processor 601, a wireless interface 602, and a memory 603. Wherein the wireless interface may be a plurality of components, i.e. comprising a transmitter and a receiver, providing a means for communicating with various other apparatuses over a transmission medium. The wireless interface performs the communication function with the control device, and processes wireless signals through the receiving and transmitting device, and data carried by the signals are communicated with the memory or the processor through an internal bus structure. The memory 603 contains a computer program for executing any of the embodiments of the present application, which computer program runs or changes on the processor 601. When the memory, processor, wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which are not described here again.
Fig. 9 is a block diagram of an intermediate node control apparatus according to another embodiment of the present invention. The control device 700 comprises at least one processor 701, a memory 702, a network interface 703 and at least one super surface interface 704. The various components in the control device 700 are coupled together by a bus system. Bus systems are used to enable connected communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.
The shaping interface 703 is used to connect surface units of an intermediate device (e.g., a super surface device), and convert phase information in the control information into a driving signal of each surface unit, so as to implement reflection (or refraction) signal adjustment of the intermediate device.
The memory 702 stores executable modules or data structures. The memory may store an operating system and application programs. The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks.
In an embodiment of the present invention, the memory 702 contains a computer program that executes any of the embodiments of the present application, the computer program running or changing on the processor 701.
The memory 702 contains a computer readable storage medium, and the processor 701 reads the information in the memory 702 and performs the steps of the above method in combination with its hardware. In particular, the computer readable storage medium has stored thereon a computer program which, when executed by the processor 701, implements the steps of the method embodiments as described in any of the embodiments above.
The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the methods of the present application may be performed by integrated logic circuitry in hardware or instructions in software in processor 701. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The disclosed methods, steps, and logic blocks in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. In one typical configuration, the device of the present application includes one or more processors (CPUs), an input/output user interface, a network interface, and memory.
Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Accordingly, the present application also proposes a computer readable medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any of the embodiments of the present application. For example, the memory 603, 702 of the present invention may include non-volatile memory in a computer-readable medium, random Access Memory (RAM) and/or non-volatile memory, etc., such as read-only memory (ROM) or flash RAM.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
Based on the embodiments of fig. 8-11, the present application also proposes a mobile communication system comprising at least 1 embodiment of any one control device of the present application and/or at least 1 embodiment of any one network device of the present application.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
In the present application, "first", "second" and "third" are used to distinguish between a plurality of objects having the same name, and are not intended to indicate a sequence or a size, but are not intended to have any particular meaning unless otherwise specified.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (14)
1. An intermediate node control method for a mobile communication system, where the mobile communication system includes a network device, an intermediate device and a user device, and a service signal generated by the network device is radiated by a transmitter and then directly received by the user device, or is received by the user device after passing through the intermediate device, where the method includes the following steps:
the downlink control information comprises first control information and second control information; the first control information comprises identification information of an intermediate device; the second control information includes phase information corresponding to the identification information;
the configuration information comprises a period of a first time-frequency resource pool, which is a first sending period; the first time-frequency resource pool is used for sending the downlink control information;
the configuration information comprises a period of a second time-frequency resource, which is a second sending period; the second time-frequency resource is used for sending the second control information; the second time-frequency resource is dedicated to an intermediate device conforming to the identification information;
the second transmission period is N times of the first transmission period, and N is an integer.
2. The intermediate node control method of claim 1,
the configuration information comprises a period of a third time-frequency resource, which is a third sending period;
the third time-frequency resource is used for sending third control information, and the third control information comprises an indication of a second sending period corresponding to the identification information;
the third control information is common to a plurality of intermediate devices within range of the base station.
3. The method of controlling an intermediate node as recited in claim 2,
the third transmission period is M times of the second transmission period;
wherein M is an integer and M is an integer multiple of N; m is base station configuration information, and N is determined by third control information.
4. An intermediate node control method according to any one of claims 1 to 3, for a network device, comprising the steps of:
the network equipment sends downlink control information which comprises first control information and second control information; the first control information comprises identification information of an intermediate device; the second control information includes phase information corresponding to the identification information.
5. The intermediate node control method of claim 4, comprising, prior to said step, the steps of:
the network equipment receives a random access request from an intermediate device control equipment and distributes the identification information for the intermediate device;
the network device receives upstream control information from an intermediary device control device, the upstream control information comprising a set of phase adjustment parameters of the intermediary device corresponding to the identification information.
6. The intermediate node control method of claim 4, further comprising the steps of:
the network device broadcasts third control information, which contains an indication of a second transmission period;
the period of the second time-frequency resource dedicated to the second control information is the second transmission period;
and the period of the third time-frequency resource dedicated to the third control information is the third transmission period.
7. An intermediate node control method according to any one of claims 1 to 3, for a control device,
the control equipment receives downlink control information, wherein the downlink control information comprises first control information and second control information; the first control information comprises identification information of an intermediate device; the second control information includes phase information corresponding to the identification information.
8. The intermediate node control method of claim 7, further comprising, prior to said step, the steps of:
the control equipment sends a random access request;
the control device transmits uplink control information containing a set of phase adjustment parameters of the intermediate device corresponding to the identification information.
9. The intermediate node control method of claim 7, further comprising the steps of:
the control device receives third control information, which contains an indication of a second transmission period;
the period of the second time-frequency resource dedicated to the second control information is the second transmission period;
and the period of the third time-frequency resource dedicated to the third control information is the third transmission period.
10. A network device for implementing the method of any one of claims 1 to 3, wherein the network device is configured to receive a random access request; distributing the identification information to the intermediate device; transmitting first control information; receiving a set of phase adjustment parameters of an intermediary device corresponding to the identification information; and sending second control information.
11. A control device, configured to implement the method of any one of claims 1 to 3, where the control device is configured to send a random access request; receiving first control information; transmitting a set of phase adjustment parameters of an intermediary device corresponding to the identification information; receiving second control information; and adjusting an intermediate device corresponding to the identification information according to the first control information and the second control information.
12. A communication device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to any one of claims 1 to 9.
13. A computer readable medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any of claims 1 to 9.
14. A mobile communication system comprising at least 1 control device according to claim 11 and/or at least 1 network device according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110839121.5A CN113727447B (en) | 2021-07-23 | 2021-07-23 | Intermediate node control method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110839121.5A CN113727447B (en) | 2021-07-23 | 2021-07-23 | Intermediate node control method and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113727447A CN113727447A (en) | 2021-11-30 |
| CN113727447B true CN113727447B (en) | 2024-02-09 |
Family
ID=78673912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110839121.5A Active CN113727447B (en) | 2021-07-23 | 2021-07-23 | Intermediate node control method and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113727447B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023097677A1 (en) * | 2021-12-03 | 2023-06-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for reconfigurable intelligent surface node in communication network |
| WO2023133870A1 (en) * | 2022-01-17 | 2023-07-20 | Zte Corporation | Techniques to configure a reconfigurable intelligent surface device |
| CN114826365A (en) * | 2022-04-29 | 2022-07-29 | 中国信息通信研究院 | Switch signaling indication method and device |
| WO2024026827A1 (en) * | 2022-08-05 | 2024-02-08 | Qualcomm Incorporated | Interference mitigation in reflective intelligent surface-based communication systems |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222414A (en) * | 2007-01-11 | 2008-07-16 | 华为技术有限公司 | Device, system and method for implementing multicast communication |
| CN103563447A (en) * | 2011-06-14 | 2014-02-05 | Sca艾普拉控股有限公司 | Wireless communications system and method |
| CN103875193A (en) * | 2011-10-21 | 2014-06-18 | 瑞典爱立信有限公司 | Handover for an intermediate node in a wireless communication network |
| CN110166204A (en) * | 2018-02-14 | 2019-08-23 | 成都华为技术有限公司 | The method and apparatus of resource allocation |
| CN111200474A (en) * | 2019-12-23 | 2020-05-26 | 中国信息通信研究院 | Indication method and device for multi-transmission mechanism mixed transmission |
| CN111542054A (en) * | 2020-05-08 | 2020-08-14 | 南京大学 | Secure communication method and system based on programmable super surface |
| CN112332548A (en) * | 2020-10-16 | 2021-02-05 | 华中科技大学 | Wireless energy transmission method and system |
| CN112532547A (en) * | 2020-11-21 | 2021-03-19 | 北京邮电大学 | Channel estimation and channel identification method in intelligent reflector communication system |
| CN112769464A (en) * | 2020-12-29 | 2021-05-07 | 北京邮电大学 | Wireless communication method and device |
| TW202241169A (en) * | 2021-03-16 | 2022-10-16 | 美商高通公司 | Contention-free ris handover via barring |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014157939A1 (en) * | 2013-03-26 | 2014-10-02 | 엘지전자 주식회사 | Method for transmitting and receiving signal in multiple cell-based wireless communication system, and apparatus for same |
| EP3729675A1 (en) * | 2017-12-21 | 2020-10-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement for beam assignment support |
| US11528075B2 (en) * | 2019-05-16 | 2022-12-13 | Qualcomm Incorporated | Joint beam management for backhaul links and access links |
| WO2021095181A1 (en) * | 2019-11-13 | 2021-05-20 | 株式会社Ｎｔｔドコモ | Terminal and wireless communication method |
| KR102287068B1 (en) * | 2019-12-10 | 2021-08-05 | 성균관대학교산학협력단 | A method for transmitting a power by using a meta surface in wireless communication system |
| CN111245492B (en) * | 2020-01-10 | 2022-01-21 | 北京邮电大学 | Intelligent reflector selection method based on received power sequencing |
| CN113765550B (en) * | 2020-06-03 | 2023-04-07 | 华为技术有限公司 | Communication method and related device |
| CN115119239A (en) * | 2021-03-18 | 2022-09-27 | 索尼公司 | Electronic device and method for wireless communication, computer-readable storage medium |
| CN115442005A (en) * | 2021-06-03 | 2022-12-06 | 中兴通讯股份有限公司 | Network node control method, device and computer readable storage medium |
| CN113727363B (en) * | 2021-07-23 | 2024-02-09 | 中国信息通信研究院 | Beam management method and device for intermediate node |
| CN113873653A (en) * | 2021-08-20 | 2021-12-31 | 中国信息通信研究院 | Method and equipment for reporting capacity of intermediate node in wireless communication system |
| WO2023187583A1 (en) * | 2022-03-31 | 2023-10-05 | Jio Platforms Limited | System and method for implementing intelligent reflecting surfaces (irs) in networks |
-
2021
- 2021-07-23 CN CN202110839121.5A patent/CN113727447B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222414A (en) * | 2007-01-11 | 2008-07-16 | 华为技术有限公司 | Device, system and method for implementing multicast communication |
| CN103563447A (en) * | 2011-06-14 | 2014-02-05 | Sca艾普拉控股有限公司 | Wireless communications system and method |
| CN103875193A (en) * | 2011-10-21 | 2014-06-18 | 瑞典爱立信有限公司 | Handover for an intermediate node in a wireless communication network |
| CN110166204A (en) * | 2018-02-14 | 2019-08-23 | 成都华为技术有限公司 | The method and apparatus of resource allocation |
| CN111200474A (en) * | 2019-12-23 | 2020-05-26 | 中国信息通信研究院 | Indication method and device for multi-transmission mechanism mixed transmission |
| CN111542054A (en) * | 2020-05-08 | 2020-08-14 | 南京大学 | Secure communication method and system based on programmable super surface |
| CN112332548A (en) * | 2020-10-16 | 2021-02-05 | 华中科技大学 | Wireless energy transmission method and system |
| CN112532547A (en) * | 2020-11-21 | 2021-03-19 | 北京邮电大学 | Channel estimation and channel identification method in intelligent reflector communication system |
| CN112769464A (en) * | 2020-12-29 | 2021-05-07 | 北京邮电大学 | Wireless communication method and device |
| TW202241169A (en) * | 2021-03-16 | 2022-10-16 | 美商高通公司 | Contention-free ris handover via barring |
Non-Patent Citations (2)
| Title |
|---|
| Intelligent Reflecting Surface Enhanced Wireless Network via Joint Active and Passive Beamforming;Q. Wu and R. Zhang;IEEE Transactions on Wireless Communications;全文 * |
| 移动通信系统中的自组织及反向散射技术研究;窦中兆;信息科技辑;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113727447A (en) | 2021-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113727447B (en) | Intermediate node control method and equipment | |
| CN113727363B (en) | Beam management method and device for intermediate node | |
| CN110383919A (en) | SRS transmission method and relevant device | |
| US10727993B2 (en) | Apparatus and operating method for controlling interference between base stations in wireless communication system | |
| CN114126062A (en) | Method and equipment for indicating node wave beam of wireless communication system | |
| CN113905394B (en) | Beam management method and device | |
| US20240080067A1 (en) | Working mode indicating method and apparatus and device | |
| RU2608184C2 (en) | Methods and devices for coordinated transmission and reception of data signal | |
| CN114051284B (en) | Beam identification random access method and device | |
| US10003979B2 (en) | Method for generating signal for reducing interference in user-centralized virtual cell in cloud wireless connection network environment, and apparatus therefor | |
| US20230022225A1 (en) | Methods and systems for managing reflecting surface | |
| CN113905441A (en) | Beam selection measurement reporting method and device | |
| WO2023019872A1 (en) | Method for reporting capability of intermediate node of wireless communication system, and device | |
| CN114126060A (en) | Method and equipment for indicating transmission state signaling of wireless communication system node | |
| KR20230155450A (en) | Communications via Reconfigurable Intelligent Surfaces (RIS) | |
| JP7278342B2 (en) | Method used by UE to communicate with base station over M-TRP in unlicensed band and UE using this method | |
| RU2757673C1 (en) | Method for allocating random access resources for communication nodes with integrated access and transit connection | |
| US20220150987A1 (en) | Method and apparatus for random access in wireless communication system | |
| US20200059869A1 (en) | Method and apparatus for setting uplink transmitting power in wireless communication system | |
| EP4142174A1 (en) | Reconfigurable relay discovery for blindspot avoidance | |
| US20220022049A1 (en) | Method, system, and apparatus for sharing dynamic frequency in mobile communication system | |
| US20220116887A1 (en) | Method and apparatus for controlling power of iab node in wireless communication system | |
| CN115499851A (en) | Communication method, communication apparatus, electronic device, medium, and program product | |
| CN117178498A (en) | Seed for forwarding device configuration | |
| CN114826365A (en) | Switch signaling indication method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |