CN114980078A - Uplink background noise and interference suppression system and method for 5G communication base station - Google Patents
Uplink background noise and interference suppression system and method for 5G communication base station Download PDFInfo
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Abstract
The invention relates to the technical field related to communication bottom noise and interference suppression, in particular to a system and a method for suppressing the uplink bottom noise and interference of a 5G communication base station, which comprises a terminal integration module, an external RRU, a HUB module and an external BBU, wherein the terminal integration module is connected with the external RRU, the external RRU is connected with the HUB module by adopting a repeater, and the HUB module is connected with the external BBU; the method has the characteristics of reducing the network delay to the minimum, avoiding the problems of queuing and waiting of a data round-trip route and the like, not causing service blockage, and providing better access service for the user terminal, and simultaneously can effectively distinguish whether the RRU signal received by the optical port is bottom noise or interference or service data, and then carry out bottom noise and interference suppression, thereby further reducing the bottom noise of the uplink signal of the whole system.
Description
Technical Field
The invention relates to the technical field related to communication bottom noise and interference suppression, in particular to an uplink bottom noise and interference suppression system and method for a 5G communication base station.
Background
In 5G communication, a strict low-latency high-reliability scenario requires that network-side latency is almost negligible, and is mainly directed to a regionally deployed machine type terminal. In the traditional cellular network design, the functions and the physical devices are in a strong binding relationship, and a delay bottleneck which cannot be avoided by adopting a centralized control and data path is caused.
In the terminal management process of the existing cellular network, along with the increase of the number of machine type terminals, the burden of a core network is increased and a signaling storm is easily caused.
And, when the 5G communication is accessed, the area where the electromagnetic wave signal cannot reach is called a "dead zone". In such a dead zone, the user terminal can receive a service of the network by accessing the network using a relay function of the relay station.
However, if there is not enough resource in the serving station, i.e. the traffic load is too heavy, the serving station blocks the relay access call initiated by the ue, so that the ue cannot enjoy the service provided by the network.
The typical networking mode of the existing 5G distributed base station is combined by star type and chain type, when the uplink communication is carried out, the extension unit HUB superposes uplink signals from N RRUs and transmits the uplink signals to the BBU through the 1 optical port, but after the HUB superposes the signals, the bottom noise is also superposed, and the lifting of the bottom noise of the whole system is caused. In a communication system, background noise is an important factor that communication performance deteriorates, so that the communication quality is influenced and the transmission rate of uplink and downlink data is reduced, and if the transmission rate of the uplink and downlink data is reduced, service data is completely submerged, wireless signals in an affected area are completely interrupted, and the whole communication system is influenced.
Disclosure of Invention
The invention aims to provide the characteristics of minimizing network delay, avoiding problems of data round-trip route queuing and the like, not causing service blockage, providing better access service for a user terminal, and effectively distinguishing whether an RRU signal received by an optical port is bottom noise or interference or service data, and then performing bottom noise and interference suppression, thereby further reducing the bottom noise of an uplink signal of the whole system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a system and a method for suppressing uplink background noise and interference of a 5G communication base station comprise a terminal integration module, an external RRU, a HUB module and an external BBU, wherein the terminal integration module is connected with the external RRU, the external RRU is connected with the HUB module by adopting a repeater, and the HUB module is connected with the external BBU;
the terminal integration module comprises a plurality of EP terminal inlets, a DCS functional entity and a core network, wherein the EP terminal inlets are connected with the DCS functional entity, the DCS functional entity is connected with the core network, and the core network is connected with an external RRU;
the HUB module is internally integrated with a power detection and judgment module, a CP (provider edge) correlation operation and result judgment module, a signal superposition module and a digital filter, the power detection and judgment module is connected with an external RRU (remote radio unit) through optical fiber communication, the power detection and judgment module is in communication connection with the CP correlation operation and result judgment module, the CP correlation operation and result judgment module is in communication connection with the signal superposition module, the signal superposition module is in communication connection with the digital filter, and the digital filter is connected with an external BBU.
Further, the power detection and judgment module is provided with a power threshold value, and the power threshold value is set according to the receiving sensitivity of the base station.
Further, the CP correlation operation and result judgment module is provided with a peak threshold value, and the peak threshold value is determined according to the correlation superposition times and the link gain.
Further, the terminal integration method comprises the following steps:
step 1, a DSC functional entity sends system broadcast information;
step 2, the terminal performs a network selection process according to the broadcast message, the type of the device and the type of the network to be accessed, and initiates a network access process;
step 3, the DSC functional entity verifies the validity of the terminal identity according to the terminal identity verification information received from the terminal and the fixed identification information of the terminal;
step 4, after the terminal identity passes the validity verification, the DSC functional entity sends an attachment response message to the terminal;
step 5, the terminal verifies the validity of the accessed DSC functional entity according to the received DSC functional entity identity verification information;
step 6, after the terminal completes the validity verification of the DSC functional entity, the terminal sends an attachment completion message to the DSC functional entity;
step 7, after receiving the attachment completion message, the DSC indexes the context established locally by the terminal according to the temporary terminal identifier, and updates the state of the terminal to be successful attachment;
and step 8, the DSC updates the information of the number of the currently accessed terminals and sends the information of the number of the accessed terminals to the core network through the cluster information updating process.
Further, the terminal integration method comprises the following steps:
step 1, DSC sends system broadcast information in a broadcast mode;
step 2, initiating a network access process according to the network identifier, the DSC identifier and the DSC support service list information carried by the broadcast message;
step 3, the DSC sends an identity authentication request to a core network;
step 4, the core network verifies the identity of the terminal according to the terminal fixed identification, the terminal identity verification information and the originally stored terminal subscription information which are received from the DSC;
step 5, after the core network completes the terminal identity authentication, the core network sends the DSC that the identity authentication is completed;
step 6, the DSC allocates a terminal temporary identifier for the terminal, establishes a context for the terminal, and stores terminal fixed identifier information, terminal temporary identifier information, terminal security context information and a terminal signing service list;
step 7, according to the received core network verification information and in combination with the security context pre-stored by the terminal, the terminal verifies the network validity, and the terminal stores the temporary identity identification information of the slave terminal;
step 8, after the network validity is verified, the terminal sends an attachment completion message to the DSC;
step 9, the DSC updates the locally stored terminal state information;
and step 10, the DSC sends the terminal state information to the core network, and the core network stores the terminal on-network state information.
Further, the method for connecting the external RRU with the HUB module by using the repeater comprises the following steps:
step 1, the relay station receives an access request of a user terminal;
step 2, the relay station performs access authentication on the access request, and if the access request passes the authentication, the relay station forwards resource demand information carried by the access request to a service station;
and 3, establishing a business relation between the server and the user terminal, and returning corresponding service resources to the user terminal through the relay station according to the received resource demand information.
Further, the uplink background noise and interference suppression method comprises the following steps:
step 1, a HUB module receives uplink signals of external RRUs (remote radio units) sent by relay stations of all ports, and power detection is carried out through a power detection and judgment module;
step 2, comparing the detection result of the step 1 with a preset power threshold value, if the detection result is lower than the power threshold value, setting the port to be zero, and if the detection result is higher than the power threshold value, performing CP correlation operation on the signal;
step 3, comparing the correlation operation result of the CP in the step 2 with a preset peak threshold value, if the value is larger than the peak threshold value, setting the signal to zero, and if the value is smaller than the peak threshold value, retaining the service data;
step 4, performing data superposition on the service data reserved in the step 3 through a signal superposition module in the HUB module;
step 5, filtering the service data superposed in the step 4 through the digital filter;
and 6, sending the uplink signal subjected to the filtering in the step 5 to an external BBU module, and completing the demodulation and decoding of the uplink signal through the external BBU module.
Further, the CP and the OFDM tail are the same, the correlation operation of the CP is to perform the correlation operation on the CP and the OFDM tail, and if the CP and the OFDM tail are service data, a peak value is generated as a result of the correlation operation.
The invention has the beneficial effects that:
according to the technical scheme, the invention has the beneficial effects that:
in 5G communication, a terminal integration module has the characteristics of centralized management, distributed organization and transmission combination, a repeater has an identity label of an encryption strategy and the like, access requests which do not accord with conditions can be denied, therefore, when no enough resources exist in a service station, the service station provides service for a user terminal with safety priority, service blocking can not be caused, better access service is provided for the user terminal, whether RRU signals are bottom noise/interference or service data can be distinguished through a HUB, if RRU signals are received by an optical port, the HUB sets the RRU signals to be 0, the RRU signals are not transmitted to a BBU, and therefore the bottom noise of the whole system is reduced.
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In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of the overall structure of the system of the present invention;
FIG. 2 is a diagram illustrating a first terminal integration method according to the present invention;
FIG. 3 is a diagram illustrating a second terminal integration method according to the present invention;
fig. 4 is a schematic diagram of a method for accessing a network by a repeater according to the present invention;
fig. 5 is a schematic diagram of a method for suppressing uplink background noise and interference of a 5G communication base station according to the present invention.
Detailed Description
Referring to fig. 1 to 5, the present embodiment provides a system and a method for suppressing uplink background noise and interference of a 5G communication base station, including a terminal integration module, an external RRU, a HUB module, and an external BBU, where the terminal integration module is connected to the external RRU, the external RRU is connected to the HUB module by using a repeater, and the HUB module is connected to the external BBU;
the terminal integration module comprises a plurality of EP terminal inlets, a DCS functional entity and a core network, wherein the EP terminal inlets are connected with the DCS functional entity, the DCS functional entity is connected with the core network, and the core network is connected with an external RRU;
the HUB module is internally integrated with a power detection and judgment module, a CP (provider edge) correlation operation and result judgment module, a signal superposition module and a digital filter, the power detection and judgment module is connected with an external RRU (remote radio unit) through optical fiber communication, the power detection and judgment module is in communication connection with the CP correlation operation and result judgment module, the CP correlation operation and result judgment module is in communication connection with the signal superposition module, the signal superposition module is in communication connection with the digital filter, and the digital filter is connected with an external BBU.
In 5G communication, the terminal integration module has the characteristics of centralized management and distributed organization, and transmission combination, and the repeater has the identity identification of an encryption strategy and the like, and can refuse access to an access request which is not in accordance with conditions, so that when the service station does not have enough resources, the service station provides service for a user terminal with safety priority, service blockage can not be caused, better access service is provided for the user terminal, whether RRU signals received by an optical port of the service station are bottom noise/interference or service data can be distinguished through the HUB, if RRU signals are bottom noise/interference, the HUB sets the RRU signals to be 0, and the RRU signals are not transmitted to the BBU, so that the bottom noise of the whole system is reduced.
Referring to fig. 1 to 5, the power detection and determination module is provided with a power threshold, and the power threshold is set according to the receiving sensitivity of the base station. In this embodiment, the HUB module receives an uplink signal of an RRU outside each port, performs signal power detection on the uplink signal, and compares a detection value with a preset power threshold.
Referring to fig. 1 to 5, the CP correlation operation and result determination module is provided with a peak threshold, and the peak threshold is determined according to the number of correlation overlaps and the link gain. In this embodiment, the CP correlation operation is performed on the signal whose detected power signal is greater than the power threshold, and the operation result is compared with the preset peak threshold.
Referring to fig. 1 to 5, the terminal integration method includes the following steps:
step 1, a DSC functional entity sends system broadcast information;
step 2, the terminal performs a network selection process according to the broadcast message, the type of the device and the type of the network to be accessed, and initiates a network access process;
step 3, the DSC functional entity verifies the validity of the terminal identity according to the terminal identity verification information received from the terminal and the fixed identification information of the terminal;
step 4, after the terminal identity passes the validity verification, the DSC functional entity sends an attachment response message to the terminal;
step 5, the terminal verifies the validity of the accessed DSC functional entity according to the received DSC functional entity identity verification information;
step 6, after the terminal completes the validity verification of the DSC functional entity, the terminal sends an attachment completion message to the DSC functional entity;
step 7, after receiving the attachment completion message, the DSC indexes the context established locally by the terminal according to the temporary terminal identifier, and updates the state of the terminal to be successful attachment;
and step 8, the DSC updates the information of the number of the currently accessed terminals and sends the information of the number of the accessed terminals to the core network through the cluster information updating process. In this embodiment, the method is directly facing a class of terminals, the class of terminals is invisible to a core network, the core network performs group management on a group formed by terminals in a cluster dynamically, and the management of the core network on the terminals is realized through a local control center DSC; the DSC functional entity determines to obtain core network authorization and manages the EP in the cluster; the specific terminal management process may include a terminal attach/detach process, a terminal status update process, a terminal service activation/deactivation process, and the like.
Referring to fig. 1 to 5, the terminal integration method includes the following steps:
step 1, DSC sends system broadcast information in a broadcast mode;
step 2, initiating a network access process according to the network identifier, the DSC identifier and the DSC support service list information carried by the broadcast message;
step 3, the DSC sends an identity authentication request to a core network;
step 4, the core network performs identity authentication on the terminal according to the terminal fixed identification, the terminal identity authentication information and the originally stored terminal subscription information received from the DSC;
step 5, after the core network completes the terminal identity authentication, the core network sends the DSC that the identity authentication is completed;
step 6, the DSC allocates a terminal temporary identifier for the terminal, establishes a context for the terminal, and stores terminal fixed identifier information, terminal temporary identifier information, terminal security context information and a terminal signing service list;
step 7, according to the received core network verification information and in combination with the security context pre-stored by the terminal, the terminal verifies the network validity, and the terminal stores the temporary identity identification information of the slave terminal;
step 8, after the network validity is verified, the terminal sends an attachment completion message to the DSC;
step 9, the DSC updates the locally stored terminal state information;
and step 10, the DSC sends the terminal state information to the core network, and the core network stores the terminal on-network state information. In this embodiment, the method is directed to two types of terminals, where a core network of the terminal manages and controls the terminal, the terminal forwards related message information through a DSC, and in a network access process, the terminal sends an attach request message to the DSC, where the attach request message carries fixed identification information of the terminal and terminal identity verification information, and after the terminal identity information passes verification, the network-in-state information of the terminal is stored, and in addition, service DSC information of the terminal is also stored, and the DSC sends an attach response message to the terminal, where the DSC carries temporary identification information of the terminal, the terminal fixed identification information, and the core network verification information, the terminal stores temporary identification information of the slave terminal, and the core network (for example, a subscription center) stores network-in-state information of the terminal.
Referring to fig. 1 to 5, the method for connecting the external RRU to the HUB module by using the repeater includes the following steps:
step 1, the relay station receives an access request of a user terminal;
step 2, the relay station performs access authentication on the access request, and if the access request passes the authentication, the relay station forwards resource demand information carried by the access request to a service station;
and 3, establishing a business relation between the server and the user terminal, and returning corresponding service resources to the user terminal through the relay station according to the received resource demand information.
In this embodiment, the relay station decrypts the access request by using a private key to obtain an identity and resource requirement information of the access device; judging whether the identity identifier and the resource demand information of the access request are respectively matched with the access identifier and the user resource allocation level of the main edge computing node, if the identity identifier and the resource demand information are matched with the access identifier and the user resource allocation level of the main edge computing node, the security of the access request passes verification; the service station receives the resource demand information and returns the relevant resources corresponding to the resource demand to the user terminal through the relay station according to the channel condition of the relay access link of the service station; the service station judges whether the service station has enough resources to support the access of the user terminal, if so, the service station judges whether the channel bandwidth of the relay access link is larger than the bandwidth required by the resource transmission, if so, the service station feeds back response information of one access to the relay station, allocates corresponding channel resources for the relay access link and returns the corresponding channel resources to the user terminal.
Referring to fig. 1 to 5, the uplink background noise and interference suppression method includes the following steps:
step 1, a HUB module receives uplink signals of external RRUs (remote radio units) sent by relay stations of various ports, and power detection is carried out through a power detection and judgment module;
step 2, comparing the detection result in the step 1 with a preset power threshold value, if the detection result is lower than the power threshold value, setting the port to be zero, and if the detection result is higher than the power threshold value, performing CP correlation operation on the signal;
step 3, comparing the correlation operation result of the CP in the step 2 with a preset peak threshold value, if the value is larger than the peak threshold value, setting the signal to zero, and if the value is smaller than the peak threshold value, retaining the service data;
step 4, performing data superposition on the service data reserved in the step 3 through a signal superposition module in the HUB module;
step 5, filtering the service data superposed in the step 4 through the digital filter;
and 6, sending the uplink signal subjected to the filtering in the step 5 to an external BBU module, and completing the demodulation and decoding of the uplink signal through the external BBU module.
In this embodiment, during uplink communication, the external RRU transmits a received uplink signal of the mobile terminal to the HUB module through the external RRU; the HUB module receives an uplink signal of RRU outside each port, performs signal power detection on the uplink signal, compares a detection value with a preset power threshold value, performs CP correlation operation if the detection power signal is greater than the power threshold value, and determines that the signal is a bottom noise if the detection power signal is less than or equal to the power threshold value, and sets the port to zero; performing CP correlation operation on the signal with the detected power signal being greater than the power threshold value, comparing the operation result with a preset peak value threshold value, if the peak value of the received uplink signal is greater than the peak value threshold value, retaining the signal, if the peak value of the received uplink signal is less than or equal to the peak value threshold value, judging the signal to be an interference signal, and setting the port to zero; and superposing the processed external RRU uplink signals in the HUB module, filtering the superposed external RRU uplink signals through the digital filter, sending the superposed and filtered uplink signals to the external BBU module, and completing the demodulation and decoding of the uplink signals through the external BBU module.
Referring to fig. 1 to 5, the CP is the same as the OFDM tail code, and the correlation operation of the CP is to perform a correlation operation on the CP and the OFDM tail, and if the CP and the OFDM tail are traffic data, the correlation operation result generates a peak. In this embodiment, the correlation operation of the CP is to perform a correlation operation on the CP and the OFDM tail, and if the CP is service data, the content of the CP and the content of the OFDM tail are the same, and the correlation operation generates a peak.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the described embodiments may be made by those skilled in the art without departing from the scope and spirit of the invention as defined by the accompanying claims.
Claims (8)
1. A5G communication base station uplink background noise and interference suppression system is characterized in that: the system comprises a terminal integration module, an external RRU, a HUB module and an external BBU, wherein the terminal integration module is connected with the external RRU, the external RRU is connected with the HUB module by adopting a repeater, and the HUB module is connected with the external BBU;
the terminal integration module comprises a plurality of EP terminal inlets, a DCS functional entity and a core network, wherein the EP terminal inlets are connected with the DCS functional entity, the DCS functional entity is connected with the core network, and the core network is connected with an external RRU;
the HUB module is internally integrated with a power detection and judgment module, a CP (provider edge) correlation operation and result judgment module, a signal superposition module and a digital filter, the power detection and judgment module is connected with an external RRU (remote radio unit) through optical fiber communication, the power detection and judgment module is in communication connection with the CP correlation operation and result judgment module, the CP correlation operation and result judgment module is in communication connection with the signal superposition module, the signal superposition module is in communication connection with the digital filter, and the digital filter is connected with an external BBU.
2. The uplink background noise and interference suppression system for the 5G communication base station according to claim 1, wherein: the power detection and judgment module is provided with a power threshold value, and the power threshold value is set according to the receiving sensitivity of the base station.
3. The uplink background noise and interference suppression system for the 5G communication base station according to claim 1, wherein: the CP correlation operation and result judgment module is provided with a peak threshold value, and the peak threshold value is determined according to the correlation superposition times and the link gain.
4. The method for suppressing uplink background noise and interference of the 5G communication base station according to claim 1, wherein the method comprises the following steps: the terminal integration method comprises the following steps:
step 1, a DSC functional entity sends system broadcast information;
step 2, the terminal performs a network selection process according to the broadcast message, the type of the device and the type of the network to be accessed, and initiates a network access process;
step 3, the DSC functional entity verifies the validity of the terminal identity according to the terminal identity verification information received from the terminal and the fixed identification information of the terminal;
step 4, after the terminal identity passes the validity verification, the DSC functional entity sends an attachment response message to the terminal;
step 5, the terminal verifies the validity of the accessed DSC functional entity according to the received DSC functional entity identity verification information;
step 6, after the terminal completes the validity verification of the DSC functional entity, the terminal sends an attachment completion message to the DSC functional entity;
step 7, after receiving the attachment completion message, the DSC indexes the context established locally by the terminal according to the temporary terminal identifier, and updates the state of the terminal to be successful attachment;
and step 8, the DSC updates the information of the number of the currently accessed terminals and sends the information of the number of the accessed terminals to the core network through the cluster information updating process.
5. The method for suppressing uplink background noise and interference of the 5G communication base station according to claim 1, wherein the method comprises the following steps: the terminal integration method comprises the following steps:
step 1, DSC sends system broadcast information in a broadcast mode;
step 2, initiating a network access process according to the network identifier, the DSC identifier and the DSC supporting service list information carried by the broadcast message;
step 3, the DSC sends an identity authentication request to a core network;
step 4, the core network performs identity authentication on the terminal according to the terminal fixed identification, the terminal identity authentication information and the originally stored terminal subscription information received from the DSC;
step 5, after the core network completes the terminal identity authentication, the core network sends the authentication completion to the DSC;
step 6, the DSC allocates a terminal temporary identifier for the terminal, establishes a context for the terminal, and stores terminal fixed identifier information, terminal temporary identifier information, terminal security context information and a terminal signing service list;
step 7, according to the received core network verification information and in combination with the security context pre-stored by the terminal, the terminal verifies the network validity, and the terminal stores the temporary identity identification information of the slave terminal;
step 8, after the network validity is verified, the terminal sends an attachment completion message to the DSC;
step 9, the DSC updates the locally stored terminal state information;
and step 10, the DSC sends the terminal state information to the core network, and the core network stores the terminal on-network state information.
6. The method for suppressing uplink background noise and interference of the 5G communication base station according to claim 1, wherein the method comprises the following steps: the method for connecting the external RRU with the HUB module by adopting the repeater comprises the following steps:
step 1, the relay station receives an access request of a user terminal;
step 2, the relay station performs access authentication on the access request, and if the access request passes the authentication, the relay station forwards resource demand information carried by the access request to a service station;
and 3, establishing a business relation between the server and the user terminal, and returning corresponding service resources to the user terminal through the relay station according to the received resource demand information.
7. The method for suppressing uplink background noise and interference of the 5G communication base station according to claim 1, wherein the method comprises the following steps: the uplink background noise and interference suppression method comprises the following steps:
step 1, a HUB module receives uplink signals of external RRUs (remote radio units) sent by relay stations of various ports, and power detection is carried out through a power detection and judgment module;
step 2, comparing the detection result of the step 1 with a preset power threshold value, if the detection result is lower than the power threshold value, setting the port to be zero, and if the detection result is higher than the power threshold value, performing CP correlation operation on the signal;
step 3, comparing the correlation operation result of the CP in the step 2 with a preset peak threshold value, if the value is larger than the peak threshold value, setting the signal to zero, and if the value is smaller than the peak threshold value, retaining the service data;
step 4, performing data superposition on the service data reserved in the step 3 through a signal superposition module in the HUB module;
step 5, filtering the service data superposed in the step 4 through the digital filter;
and 6, sending the uplink signal subjected to the filtering in the step 5 to an external BBU module, and completing the demodulation and decoding of the uplink signal through the external BBU module.
8. The method for suppressing uplink background noise and interference of the 5G communication base station according to claim 7, wherein the method comprises the following steps: the CP is the same as the OFDM tail code, the correlation operation of the CP is to carry out the correlation operation on the CP and the OFDM tail, if the CP is service data, a peak value is generated in the correlation operation result.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115580372A (en) * | 2022-09-30 | 2023-01-06 | 深圳市格莱特通信技术有限公司 | 5G laser transmission system to house |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105451272A (en) * | 2014-09-17 | 2016-03-30 | 中兴通讯股份有限公司 | Data interaction method, building baseband unit, radio remote unit and R-Hub |
| CN106304062A (en) * | 2015-05-26 | 2017-01-04 | 电信科学技术研究院 | A kind of method and apparatus that terminal is managed |
| CN106303905A (en) * | 2015-05-26 | 2017-01-04 | 电信科学技术研究院 | A kind of communication means and equipment |
| US20200252107A1 (en) * | 2019-02-05 | 2020-08-06 | XCOM Labs, Inc. | Communication with user equipment arranged to wirelessly communicate with another user equipment |
| CN112615802A (en) * | 2020-12-18 | 2021-04-06 | 深圳市佳贤通信设备有限公司 | Uplink background noise and interference suppression system and method for 5G communication base station |
-
2022
- 2022-03-18 CN CN202210274609.2A patent/CN114980078A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105451272A (en) * | 2014-09-17 | 2016-03-30 | 中兴通讯股份有限公司 | Data interaction method, building baseband unit, radio remote unit and R-Hub |
| CN106304062A (en) * | 2015-05-26 | 2017-01-04 | 电信科学技术研究院 | A kind of method and apparatus that terminal is managed |
| CN106303905A (en) * | 2015-05-26 | 2017-01-04 | 电信科学技术研究院 | A kind of communication means and equipment |
| US20200252107A1 (en) * | 2019-02-05 | 2020-08-06 | XCOM Labs, Inc. | Communication with user equipment arranged to wirelessly communicate with another user equipment |
| CN112615802A (en) * | 2020-12-18 | 2021-04-06 | 深圳市佳贤通信设备有限公司 | Uplink background noise and interference suppression system and method for 5G communication base station |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115580372A (en) * | 2022-09-30 | 2023-01-06 | 深圳市格莱特通信技术有限公司 | 5G laser transmission system to house |
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