CN110769515B - Initial access method, initial access device and communication equipment - Google Patents
Initial access method, initial access device and communication equipment Download PDFInfo
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- CN110769515B CN110769515B CN201810828001.3A CN201810828001A CN110769515B CN 110769515 B CN110769515 B CN 110769515B CN 201810828001 A CN201810828001 A CN 201810828001A CN 110769515 B CN110769515 B CN 110769515B
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000004891 communication Methods 0.000 title claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 305
- 230000005611 electricity Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 12
- 238000001228 spectrum Methods 0.000 description 10
- 230000011664 signaling Effects 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
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- 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
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- 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
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Abstract
The invention provides a method and a device for initial access network of a terminal, a method and a device for initial access network of a base station and communication equipment. The method applied to the initial access network of the terminal comprises the following steps: transmitting first random access information to a base station, wherein the first random access information comprises first transmission information of second random access information to be received; receiving second random access information sent by the base station, wherein the second random access information comprises second transmission information for sending the second random access information; and when the first transmission information accords with the second transmission information, transmitting third random access information by using the first transmission information so as to perform initial access. The base station can be ensured to correctly receive the random access information sent by the terminal, so that the initial access of the terminal and the base station is completed, the requirement of access time delay is ensured, and the terminal can save more electricity.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for an initial access network of a terminal, a method and an apparatus for an initial access network of a base station, and a communication device.
Background
Currently, the development of the 5 th generation mobile communication system (5G) is under way. According to future application requirements, 5G systems need to support a variety of traffic scenarios, including eMBB (Enhanced Mobile Broadband ), URLLC (Ultra-reliable and Low Latency Communications, high reliability low latency) and MMTC (Massive Machine Type of Communication, large-scale machine communication). Since the resources of the licensed spectrum are very limited, the unlicensed spectrum is also used for data transmission in the 5 standard, which can provide a larger transmission bandwidth than the licensed spectrum, especially for the application scenario of the large data volume such as eMBB. However, the disadvantage of unlicensed spectrum is also apparent, since it should follow the LBT (listen before talking, listening avoidance) mechanism, which is a channel access mechanism, since the availability of channels on unlicensed spectrum cannot be guaranteed at any time, LBT requires that channels be listened to before data is transmitted, idle channel assessment is performed, and data transmission is performed while ensuring that channels are idle, so that the effect of guaranteeing time delay is not ideal.
Therefore, in order to guarantee the access delay, the mechanism of accessing the network by the UE (User Equipment) under the unlicensed spectrum needs to be changed.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art or related art.
To this end, an aspect of the present invention is to propose a method applied to an initial access network of a terminal.
Another aspect of the present invention is to propose a method for initial access network applied to a base station.
Yet another aspect of the present invention is to propose an apparatus for initial access network of a terminal.
Yet another aspect of the present invention is directed to an apparatus for an initial access network for a base station.
Yet another aspect of the present invention is directed to a communication device.
In view of this, according to one aspect of the present invention, there is provided a method of initially accessing a network, applied to a terminal, the method comprising: transmitting first random access information to a base station, wherein the first random access information comprises first transmission information of second random access information to be received; receiving second random access information sent by the base station, wherein the second random access information comprises second transmission information for sending the second random access information; and when the first transmission information accords with the second transmission information, transmitting third random access information by using the first transmission information so as to perform initial access.
In the method for initially accessing the network, under the unlicensed spectrum, the terminal sends first random access information to the base station, wherein the first random access information contains first transmission information of second random access information to be received by the terminal, that is, the terminal sends the first transmission information expected to be used for receiving the second random access information to the base station, and the terminal expects to receive the second random access information according to the first transmission information. Further, second random access information with transmission information (second transmission information) used by the base station to actually transmit the second random access information is received. When the first transmission information and the second transmission information are equal, the expected receiving information of the second random access information at the terminal side is the same as the actual sending information at the base station side, and then the first transmission information is directly adopted to send the third random access information, so that the base station can be ensured to correctly receive the random access information sent by the terminal, the initial access of the terminal and the base station is finished, the requirement of access time delay is ensured, and the terminal can save more electricity.
The method for initially accessing the network according to the invention can also have the following technical characteristics:
In the above technical solution, preferably, each of the first transmission information and the second transmission information includes one or a combination of the following: directional antenna direction number, carrier wave unit.
In this technical solution, the first transmission information and the second transmission information both include, but are not limited to, directional numbers of directional antennas, and information of carrier units. It should be noted that, the first transmission information includes a direction number of the first transmission antenna and a first carrier unit, and the second transmission information includes a direction number of the second transmission antenna and a second carrier unit, where the direction number of the first transmission antenna is the same as or different from the direction number of the second transmission antenna, and the first carrier unit is the same as or different from the second carrier unit. That is, when the direction number of the first transmission antenna is the same as the direction number of the second transmission antenna, and the first carrier unit is the same as the second carrier unit, the direction number of the first directional antenna and the first carrier unit are directly adopted to continuously transmit random access information, that is, the random access information is transmitted by adopting a directional signaling transmission mode, so as to reduce the probability of LBT, thereby ensuring the requirement of access time delay, and reducing the interference of other communication to initial access.
In the above technical solution, the directional antenna has a function that the electromagnetic wave transmitted and received by the transmitting device in one or several specific directions is particularly strong, and the electromagnetic wave transmitted and received in other directions is zero or very small, wherein the direction number refers to the number performed in one specific direction.
In any of the above embodiments, preferably, the method further includes: and when the first transmission information is not matched with the second transmission information, transmitting third random access information by using the omni-directional antenna.
In the technical scheme, when the direction number of the first transmission antenna is different from the direction number of the second transmission antenna and/or the first carrier transmission unit is different from the second carrier transmission unit, the random access information is sent in an omni-directional antenna mode, so that a larger communication coverage area is ensured.
According to another aspect of the present invention, there is provided a method of initially accessing a network, applied to a base station, the method comprising: and sending first random access information to the terminal, wherein the first random access information comprises first transmission information for sending the first random access information, so that the terminal can directionally or omnidirectionally send second random access information according to the first transmission information to perform initial access.
The invention provides a method for initially accessing a network, wherein a base station transmits first random access information to a terminal, wherein the first random access information contains transmission information (first transmission information) used by the base station for actually transmitting the first random access information. The terminal can compare the first transmission information with the second transmission information expected to be used for receiving the random access information, when the first transmission information and the second transmission information are equal, the terminal can directly adopt the first transmission information to continue the random access information, and the base station can be ensured to correctly receive the random access information sent by the terminal, so that the initial access of the terminal and the base station is completed, the requirement of access time delay is ensured, and the terminal can save more electricity. When the first transmission information and the second transmission information are unequal, the random access information is sent by adopting an omni-directional antenna mode, so that a larger communication coverage area is ensured.
The method for initially accessing the network according to the invention can also have the following technical characteristics:
in the above technical solution, preferably, before sending the first random access information to the terminal, the method further includes: and receiving third random access information sent by the terminal, wherein the third random access information comprises second transmission information of the first random access information to be received by the terminal.
In the technical scheme, before the first random access information is sent to the terminal, the terminal sends third random access information to the base station, wherein the third random access information carries second transmission information which the terminal expects to receive the first random access information, that is, the terminal sends the transmission information which expects to be used for receiving the random access information to the base station, so that the base station feeds back the transmission information to the terminal random access information as much as possible, and the initial access efficiency is improved.
In any of the foregoing solutions, preferably, each of the first transmission information and the second transmission information includes one or a combination of the following: directional antenna direction number, carrier wave unit.
In this technical solution, the first transmission information and the second transmission information both include, but are not limited to, directional numbers of directional antennas, and information of carrier units. It should be noted that, the first transmission information includes a direction number of the first transmission antenna and a first carrier unit, and the second transmission information includes a direction number of the second transmission antenna and a second carrier unit, where the direction number of the first transmission antenna is the same as or different from the direction number of the second transmission antenna, and the first carrier unit is the same as or different from the second carrier unit. That is, when the terminal compares the direction number of the first transmitting antenna with the direction number of the second transmitting antenna, and the first carrier unit is the same as the second carrier unit, the direction number of the first directional antenna and the first carrier unit are directly adopted to continuously transmit the random access information, that is, the random access information is transmitted in a directional signaling manner, so as to reduce the probability of LBT, thereby ensuring the requirement of access delay, and reducing the interference of other communication to initial access. When the terminal compares the direction number of the first transmission antenna with the direction number of the second transmission antenna, and/or the direction number of the first transmission carrier unit is different from the direction number of the second transmission carrier unit, the terminal can transmit random access information in an omni-directional antenna mode, so that larger communication coverage area is ensured.
In the above technical solution, the directional antenna has a function that the electromagnetic wave transmitted and received by the transmitting device in one or several specific directions is particularly strong, and the electromagnetic wave transmitted and received in other directions is zero or very small, wherein the direction number refers to the number performed in one specific direction.
According to a further aspect of the present invention, there is provided an apparatus for initially accessing a network, for application to a terminal, the apparatus comprising: a sending module, configured to send first random access information to a base station, where the first random access information includes first transmission information of second random access information to be received; the receiving module is used for receiving second random access information sent by the base station, wherein the second random access information comprises second transmission information for sending the second random access information; and the sending module is further used for sending third random access information by using the first transmission information to perform initial access when the first transmission information accords with the second transmission information.
In the device for initially accessing the network, under the unlicensed spectrum, the terminal sends first random access information to the base station, wherein the first random access information contains first transmission information of second random access information to be received by the terminal, that is, the terminal sends the first transmission information expected to be used for receiving the second random access information to the base station, and the terminal expects to receive the second random access information according to the first transmission information. Further, second random access information with transmission information (second transmission information) used by the base station to actually transmit the second random access information is received. When the first transmission information and the second transmission information are equal, the expected receiving information of the second random access information at the terminal side is the same as the actual sending information at the base station side, and then the first transmission information is directly adopted to send the third random access information, so that the base station can be ensured to correctly receive the random access information sent by the terminal, the initial access of the terminal and the base station is finished, the requirement of access time delay is ensured, and the terminal can save more electricity.
The above device for initial access to a network according to the present invention may further have the following technical features:
in the above technical solution, preferably, each of the first transmission information and the second transmission information includes one or a combination of the following: directional antenna direction number, carrier wave unit.
In this technical solution, the first transmission information and the second transmission information both include, but are not limited to, directional numbers of directional antennas, and information of carrier units. It should be noted that, the first transmission information includes a direction number of the first transmission antenna and a first carrier unit, and the second transmission information includes a direction number of the second transmission antenna and a second carrier unit, where the direction number of the first transmission antenna is the same as or different from the direction number of the second transmission antenna, and the first carrier unit is the same as or different from the second carrier unit. That is, when the direction number of the first transmission antenna is the same as the direction number of the second transmission antenna, and the first carrier unit is the same as the second carrier unit, the direction number of the first directional antenna and the first carrier unit are directly adopted to continuously transmit random access information, that is, the random access information is transmitted by adopting a directional signaling transmission mode, so as to reduce the probability of LBT, thereby ensuring the requirement of access time delay, and reducing the interference of other communication to initial access.
In the above technical solution, the directional antenna has a function that the electromagnetic wave transmitted and received by the transmitting device in one or several specific directions is particularly strong, and the electromagnetic wave transmitted and received in other directions is zero or very small, wherein the direction number refers to the number performed in one specific direction.
In any of the foregoing solutions, preferably, the sending module is further configured to send the third random access information by using an omni-directional antenna when the first transmission information and the second transmission information do not coincide.
In the technical scheme, when the direction number of the first transmission antenna is different from the direction number of the second transmission antenna and/or the first carrier transmission unit is different from the second carrier transmission unit, the random access information is sent in an omni-directional antenna mode, so that a larger communication coverage area is ensured.
According to a further aspect of the present invention, there is provided an apparatus for initially accessing a network, for application to a base station, the apparatus comprising: and the sending module is used for sending the first random access information to the terminal, wherein the first random access information comprises first transmission information for sending the first random access information, so that the terminal can directionally or omnidirectionally send the second random access information according to the first transmission information to perform initial access.
The device for initially accessing the network provided by the invention is characterized in that the base station transmits first random access information to the terminal, wherein the first random access information contains transmission information (first transmission information) used by the base station for actually transmitting the first random access information. The terminal can compare the first transmission information with the second transmission information expected to be used for receiving the random access information, when the first transmission information and the second transmission information are equal, the terminal can directly adopt the first transmission information to continue the random access information, and the base station can be ensured to correctly receive the random access information sent by the terminal, so that the initial access of the terminal and the base station is completed, the requirement of access time delay is ensured, and the terminal can save more electricity. When the first transmission information and the second transmission information are unequal, the random access information is sent by adopting an omni-directional antenna mode, so that a larger communication coverage area is ensured.
The above device for initial access to a network according to the present invention may further have the following technical features:
in the above technical solution, preferably, the method further includes: the receiving module is used for receiving third random access information sent by the terminal, wherein the third random access information comprises second transmission information of the first random access information to be received by the terminal.
In the technical scheme, before the first random access information is sent to the terminal, the terminal sends third random access information to the base station, wherein the third random access information carries second transmission information which the terminal expects to receive the first random access information, that is, the terminal sends the transmission information which expects to be used for receiving the random access information to the base station, so that the base station feeds back the transmission information to the terminal random access information as much as possible, and the initial access efficiency is improved.
In any of the foregoing solutions, preferably, each of the first transmission information and the second transmission information includes one or a combination of the following: directional antenna direction number, carrier wave unit.
In this technical solution, the first transmission information and the second transmission information both include, but are not limited to, directional numbers of directional antennas, and information of carrier units. It should be noted that, the first transmission information includes a direction number of the first transmission antenna and a first carrier unit, and the second transmission information includes a direction number of the second transmission antenna and a second carrier unit, where the direction number of the first transmission antenna is the same as or different from the direction number of the second transmission antenna, and the first carrier unit is the same as or different from the second carrier unit. That is, when the terminal compares the direction number of the first transmitting antenna with the direction number of the second transmitting antenna, and the first carrier unit is the same as the second carrier unit, the direction number of the first directional antenna and the first carrier unit are directly adopted to continuously transmit the random access information, that is, the random access information is transmitted in a directional signaling manner, so as to reduce the probability of LBT, thereby ensuring the requirement of access delay, and reducing the interference of other communication to initial access. When the terminal compares the direction number of the first transmission antenna with the direction number of the second transmission antenna, and/or the direction number of the first transmission carrier unit is different from the direction number of the second transmission carrier unit, the terminal can transmit random access information in an omni-directional antenna mode, so that larger communication coverage area is ensured.
In the above technical solution, the directional antenna has a function that the electromagnetic wave transmitted and received by the transmitting device in one or several specific directions is particularly strong, and the electromagnetic wave transmitted and received in other directions is zero or very small, wherein the direction number refers to the number performed in one specific direction.
According to a further aspect of the present invention, a communication device is provided, which includes the apparatus for applying to an initial access network of a terminal according to any one of the above-mentioned aspects, or the apparatus for applying to an initial access network of a base station according to any one of the above-mentioned aspects.
The communication equipment provided by the invention comprises the device applied to the initial access network of the terminal in any one of the technical schemes, or the device applied to the initial access network of the base station in any one of the technical schemes, and can realize all the beneficial effects of the device applied to the initial access network of the terminal in any one of the technical schemes, or the device applied to the initial access network of the base station in any one of the technical schemes.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
Fig. 1 shows a flow diagram of a method of initially accessing a network in accordance with one embodiment of the present invention;
fig. 2 shows a flow diagram of a method of initially accessing a network in accordance with another embodiment of the present invention;
fig. 3 shows a flow diagram of a method of initially accessing a network according to an embodiment of the invention;
fig. 4 shows a flow diagram of a method of initially accessing a network in accordance with another embodiment of the present invention;
fig. 5 shows a schematic diagram of an apparatus for initial access to a network according to an embodiment of the invention;
fig. 6 shows a schematic diagram of an apparatus for initial access to a network according to an embodiment of the invention;
fig. 7 shows a schematic diagram of an apparatus for initial access to a network according to another embodiment of the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and the scope of the invention is therefore not limited to the specific embodiments disclosed below.
An embodiment of the first aspect of the present invention proposes a method for initially accessing a network, which is applied to a terminal, and fig. 1 shows a flow chart of a method for initially accessing a network according to an embodiment of the present invention. Wherein the method comprises the following steps:
step 102, sending first random access information to a base station, wherein the first random access information comprises first transmission information of second random access information to be received;
step 104, receiving second random access information sent by the base station, wherein the second random access information comprises second transmission information for sending the second random access information;
and step 106, when the first transmission information is consistent with the second transmission information, transmitting third random access information by using the first transmission information to perform initial access.
In the method for initially accessing the network, under the unlicensed spectrum, the terminal sends first random access information to the base station, wherein the first random access information contains first transmission information of second random access information to be received by the terminal, that is, the terminal sends the first transmission information expected to be used for receiving the second random access information to the base station, and the terminal expects to receive the second random access information according to the first transmission information. Further, second random access information with transmission information (second transmission information) used by the base station to actually transmit the second random access information is received. When the first transmission information and the second transmission information are equal, the expected receiving information of the second random access information at the terminal side is the same as the actual sending information at the base station side, and then the first transmission information is directly adopted to send the third random access information, so that the base station can be ensured to correctly receive the random access information sent by the terminal, the initial access of the terminal and the base station is finished, the requirement of access time delay is ensured, and the terminal can save more electricity.
In a specific embodiment, the terminal may be a network device such as a smart phone, a tablet computer, a notebook, and the like.
Fig. 2 shows a flow diagram of a method of initially accessing a network according to another embodiment of the present invention. Wherein the method comprises the following steps:
step 202, sending first random access information to a base station, wherein the first random access information comprises first transmission information of second random access information to be received;
step 204, receiving second random access information sent by the base station, wherein the second random access information includes second transmission information for sending the second random access information;
step 206, when the first transmission information accords with the second transmission information, transmitting third random access information by using the first transmission information to perform initial access; and when the first transmission information is not matched with the second transmission information, transmitting third random access information by using the omni-directional antenna.
In this embodiment, when the first transmission information and the second transmission information do not coincide, the random access information is transmitted by using an omni-directional antenna, so as to ensure a larger communication coverage area.
In one embodiment of the present invention, preferably, each of the first transmission information and the second transmission information includes one or a combination of the following: directional antenna direction number, carrier wave unit.
In this embodiment, the first transmission information and the second transmission information each include, but are not limited to, a directional number of the directional antenna, information of the carrier unit. It should be noted that, the first transmission information includes a direction number of the first transmission antenna and a first carrier unit, and the second transmission information includes a direction number of the second transmission antenna and a second carrier unit, where the direction number of the first transmission antenna is the same as or different from the direction number of the second transmission antenna, and the first carrier unit is the same as or different from the second carrier unit. That is, when the direction number of the first transmission antenna is the same as the direction number of the second transmission antenna, and the first carrier unit is the same as the second carrier unit, the direction number of the first directional antenna and the first carrier unit are directly adopted to continuously transmit random access information, that is, the random access information is transmitted by adopting a directional signaling transmission mode, so as to reduce the probability of LBT, thereby ensuring the requirement of access time delay, and reducing the interference of other communication to initial access. When the direction number of the first transmission antenna is different from the direction number of the second transmission antenna and/or the first carrier transmission unit is different from the second carrier transmission unit, the random access information is sent in an omni-directional antenna mode, so that a larger communication coverage area is ensured.
For example, the basic access channel may be 20MHz, and if the basic access channel is divided into 4 transmission bandwidths of 5MHz, CCs (Component Carrier, carrier units) of each transmission bandwidth of 5MHz are different from CCs of 20MHz, and CCs between the 4 transmission bandwidths are also different, so that power saving of the terminal is facilitated.
In the above embodiment, the directional antenna is used as a transmitting device that transmits and receives electromagnetic waves in a specific direction or directions, and transmits and receives electromagnetic waves in other directions that are zero or very small, wherein the direction number refers to the number of the specific direction.
An embodiment of the second aspect of the present invention proposes a method for initially accessing a network, applied to a base station, and fig. 3 shows a flow chart of a method for initially accessing a network according to an embodiment of the present invention. Wherein the method comprises the following steps:
step 302, first random access information is sent to the terminal, wherein the first random access information includes first transmission information for sending the first random access information, so that the terminal can send second random access information in a directional or omnidirectional manner according to the first transmission information to perform initial access.
The invention provides a method for initially accessing a network, wherein a base station transmits first random access information to a terminal, wherein the first random access information contains transmission information (first transmission information) used by the base station for actually transmitting the first random access information. The terminal can compare the first transmission information with the second transmission information expected to be used for receiving the random access information, when the first transmission information and the second transmission information are equal, the terminal can directly adopt the first transmission information to continue the random access information, and the base station can be ensured to correctly receive the random access information sent by the terminal, so that the initial access of the terminal and the base station is completed, the requirement of access time delay is ensured, and the terminal can save more electricity. When the first transmission information and the second transmission information are unequal, the random access information is sent by adopting an omni-directional antenna mode, so that a larger communication coverage area is ensured.
In a specific embodiment, the terminal may be a network device such as a smart phone, a tablet computer, a notebook, and the like.
Fig. 4 shows a flow diagram of a method of initially accessing a network according to another embodiment of the present invention. Wherein the method comprises the following steps:
step 402, receiving third random access information sent by a terminal, wherein the third random access information comprises second transmission information of first random access information to be received by the terminal;
step 404, the first random access information is sent to the terminal, wherein the first random access information includes first transmission information for sending the first random access information, so that the terminal can send second random access information in a directional or omnidirectional manner according to the first transmission information to perform initial access.
In this embodiment, before sending the first random access information to the terminal, the terminal sends third random access information to the base station, where the third random access information includes second transmission information that the terminal expects to receive the first random access information, that is, the terminal sends transmission information expected to be used for receiving the random access information to the base station, so that the base station feeds back the transmission information to the terminal random access information as much as possible, and the initial access efficiency is improved.
In one embodiment of the present invention, preferably, each of the first transmission information and the second transmission information includes one or a combination of the following: directional antenna direction number, carrier wave unit.
In this embodiment, the first transmission information and the second transmission information each include, but are not limited to, a directional number of the directional antenna, information of the carrier unit. It should be noted that, the first transmission information includes a direction number of the first transmission antenna and a first carrier unit, and the second transmission information includes a direction number of the second transmission antenna and a second carrier unit, where the direction number of the first transmission antenna is the same as or different from the direction number of the second transmission antenna, and the first carrier unit is the same as or different from the second carrier unit. That is, when the terminal compares the direction number of the first transmitting antenna with the direction number of the second transmitting antenna, and the first carrier unit is the same as the second carrier unit, the direction number of the first directional antenna and the first carrier unit are directly adopted to continuously transmit the random access information, that is, the random access information is transmitted in a directional signaling manner, so as to reduce the probability of LBT, thereby ensuring the requirement of access delay, and reducing the interference of other communication to initial access. When the terminal compares the direction number of the first transmission antenna with the direction number of the second transmission antenna, and/or the direction number of the first transmission carrier unit is different from the direction number of the second transmission carrier unit, the terminal can transmit random access information in an omni-directional antenna mode, so that larger communication coverage area is ensured.
In the above embodiment, the directional antenna is used as a transmitting device that transmits and receives electromagnetic waves in a specific direction or directions, and transmits and receives electromagnetic waves in other directions that are zero or very small, wherein the direction number refers to the number of the specific direction.
An embodiment of the third aspect of the present invention proposes an apparatus for initially accessing a network, applied to a terminal, and fig. 5 shows a schematic diagram of an apparatus 50 for initially accessing a network according to an embodiment of the present invention. Wherein the device 50 comprises:
a sending module 502, configured to send first random access information to a base station, where the first random access information includes first transmission information of second random access information to be received;
a receiving module 504, configured to receive second random access information sent by the base station, where the second random access information includes second transmission information for sending the second random access information;
the sending module 502 is further configured to send third random access information to perform initial access by using the first transmission information when the first transmission information matches the second transmission information.
The apparatus 50 for initial access network provided by the present invention transmits, to a base station, first random access information with first transmission information of second random access information to be received by the terminal, that is, the terminal transmits, to the base station, first transmission information expected to be used for receiving the second random access information, and the terminal expects to receive the second random access information according to the first transmission information, under unlicensed spectrum. Further, second random access information with transmission information (second transmission information) used by the base station to actually transmit the second random access information is received. When the first transmission information and the second transmission information are equal, the expected receiving information of the second random access information at the terminal side is the same as the actual sending information at the base station side, and then the first transmission information is directly adopted to send the third random access information, so that the base station can be ensured to correctly receive the random access information sent by the terminal, the initial access of the terminal and the base station is finished, the requirement of access time delay is ensured, and the terminal can save more electricity.
In a specific embodiment, the terminal may be a network device such as a smart phone, a tablet computer, a notebook, and the like. The transmitting module 502 may be a transmitter, an antenna, etc., and the receiving module 504 may be a receiver, an antenna, etc.
In one embodiment of the present invention, preferably, each of the first transmission information and the second transmission information includes one or a combination of the following: directional antenna direction number, carrier wave unit.
In this embodiment, the first transmission information and the second transmission information each include, but are not limited to, a directional number of the directional antenna, information of the carrier unit. It should be noted that, the first transmission information includes a direction number of the first transmission antenna and a first carrier unit, and the second transmission information includes a direction number of the second transmission antenna and a second carrier unit, where the direction number of the first transmission antenna is the same as or different from the direction number of the second transmission antenna, and the first carrier unit is the same as or different from the second carrier unit. That is, when the direction number of the first transmission antenna is the same as the direction number of the second transmission antenna, and the first carrier unit is the same as the second carrier unit, the direction number of the first directional antenna and the first carrier unit are directly adopted to continuously transmit random access information, that is, the random access information is transmitted by adopting a directional signaling transmission mode, so as to reduce the probability of LBT, thereby ensuring the requirement of access time delay, and reducing the interference of other communication to initial access.
For example, the basic access channel may be 20MHz, and if the basic access channel is divided into 4 transmission bandwidths of 5MHz, CCs (Component Carrier, carrier units) of each transmission bandwidth of 5MHz are different from CCs of 20MHz, and CCs between the 4 transmission bandwidths are also different, so that power saving of the terminal is facilitated.
In the above embodiment, the directional antenna is used as a transmitting device that transmits and receives electromagnetic waves in a specific direction or directions, and transmits and receives electromagnetic waves in other directions that are zero or very small, wherein the direction number refers to the number of the specific direction.
In one embodiment of the present invention, the sending module 502 is preferably further configured to send the third random access information by using an omni-directional antenna when the first transmission information does not coincide with the second transmission information.
In this embodiment, when the direction number of the first transmission antenna is different from the direction number of the second transmission antenna and/or the first carrier unit is different from the second carrier unit, the random access information is sent by adopting an omni-directional antenna mode, so as to ensure a larger communication coverage area.
An embodiment of the fourth aspect of the present invention proposes an apparatus for initial access to a network, applied to a base station, and fig. 6 shows a schematic diagram of an apparatus 60 for initial access to a network according to an embodiment of the present invention. Wherein the device 60 comprises:
The sending module 602 is configured to send first random access information to the terminal, where the first random access information includes first transmission information for sending the first random access information, so that the terminal can send second random access information in a directional or omni-directional manner according to the first transmission information to perform initial access.
The device 60 for initial access network provided by the invention, the base station sends the first random access information to the terminal, wherein the first random access information contains transmission information (first transmission information) used by the base station to actually send the first random access information. The terminal can compare the first transmission information with the second transmission information expected to be used for receiving the random access information, when the first transmission information and the second transmission information are equal, the terminal can directly adopt the first transmission information to continue the random access information, and the base station can be ensured to correctly receive the random access information sent by the terminal, so that the initial access of the terminal and the base station is completed, the requirement of access time delay is ensured, and the terminal can save more electricity. When the first transmission information and the second transmission information are unequal, the random access information is sent by adopting an omni-directional antenna mode, so that a larger communication coverage area is ensured.
In a specific embodiment, the terminal may be a network device such as a smart phone, a tablet computer, a notebook, and the like. The transmitting module 602 may be a transmitter or an antenna, etc.
Fig. 7 shows a schematic diagram of an apparatus 70 for initial access to a network according to another embodiment of the present invention. Wherein the device 70 comprises:
a receiving module 702, configured to receive third random access information sent by a terminal, where the third random access information includes second transmission information of the first random access information to be received by the terminal;
and a sending module 704, configured to send first random access information to the terminal, where the first random access information includes first transmission information for sending the first random access information, so that the terminal sends second random access information in a directional or omnidirectional manner according to the first transmission information to perform initial access.
In this embodiment, before sending the first random access information to the terminal, the terminal sends third random access information to the base station, where the third random access information includes second transmission information that the terminal expects to receive the first random access information, that is, the terminal sends transmission information expected to be used for receiving the random access information to the base station, so that the base station feeds back the transmission information to the terminal random access information as much as possible, and the initial access efficiency is improved.
In one embodiment of the present invention, preferably, each of the first transmission information and the second transmission information includes one or a combination of the following: directional antenna direction number, carrier wave unit.
In this embodiment, the first transmission information and the second transmission information each include, but are not limited to, a directional number of the directional antenna, information of the carrier unit. It should be noted that, the first transmission information includes a direction number of the first transmission antenna and a first carrier unit, and the second transmission information includes a direction number of the second transmission antenna and a second carrier unit, where the direction number of the first transmission antenna is the same as or different from the direction number of the second transmission antenna, and the first carrier unit is the same as or different from the second carrier unit. That is, when the terminal compares the direction number of the first transmitting antenna with the direction number of the second transmitting antenna, and the first carrier unit is the same as the second carrier unit, the direction number of the first directional antenna and the first carrier unit are directly adopted to continuously transmit the random access information, that is, the random access information is transmitted in a directional signaling manner, so as to reduce the probability of LBT, thereby ensuring the requirement of access delay, and reducing the interference of other communication to initial access. When the terminal compares the direction number of the first transmission antenna with the direction number of the second transmission antenna, and/or the direction number of the first transmission carrier unit is different from the direction number of the second transmission carrier unit, the terminal can transmit random access information in an omni-directional antenna mode, so that larger communication coverage area is ensured.
In the above embodiment, the directional antenna is used as a transmitting device that transmits and receives electromagnetic waves in a specific direction or directions, and transmits and receives electromagnetic waves in other directions that are zero or very small, wherein the direction number refers to the number of the specific direction.
In a specific embodiment, the terminal may be a network device such as a smart phone, a tablet computer, a notebook, and the like. The receiving module 702 may be a receiver, an antenna, etc., and the transmitting module 704 may be a transmitter, an antenna, etc.
An embodiment of a fifth aspect of the present invention provides a communication device, including an apparatus for applying any of the above embodiments to an initial access network of a terminal, or an apparatus for applying any of the above embodiments to an initial access network of a base station.
The communication equipment provided by the invention comprises the device applied to the initial access network of the terminal in any embodiment, or the device applied to the initial access network of the base station in any embodiment, and can realize all the beneficial effects of the device applied to the initial access network of the terminal in any embodiment, or the device applied to the initial access network of the base station in any embodiment.
In the description of the present specification, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly specified and limited otherwise; the terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A method of initially accessing a network, for application to a terminal, the method comprising:
transmitting first random access information to a base station, wherein the first random access information comprises first transmission information of second random access information to be received;
receiving the second random access information sent by the base station, wherein the second random access information comprises second transmission information for sending the second random access information;
when the first transmission information accords with the second transmission information, third random access information is sent by utilizing the first transmission information so as to perform initial access;
the method for initially accessing the network further comprises the following steps:
when the first transmission information is not coincident with the second transmission information, transmitting the third random access information by using an omni-directional antenna;
The first transmission information and the second transmission information each include one or a combination of the following: directional antenna direction number, carrier wave unit.
2. A method of initially accessing a network, for application to a base station, the method comprising:
transmitting first random access information to a terminal, wherein the first random access information comprises first transmission information for transmitting the first random access information, so that the terminal can directionally or omnidirectionally transmit second random access information according to the first transmission information to perform initial access;
before the sending of the first random access information to the terminal, the method further comprises:
receiving third random access information sent by the terminal, wherein the third random access information comprises second transmission information of the first random access information to be received by the terminal;
when the first transmission information and the second transmission information are equal, the terminal directly adopts the first transmission information to continue random access information;
when the first transmission information and the second transmission information are unequal, transmitting random access information in an omni-directional antenna mode;
the first transmission information and the second transmission information each include one or a combination of the following: directional antenna direction number, carrier wave unit.
3. An apparatus for initially accessing a network, the apparatus being adapted for use with a terminal, the apparatus comprising:
a sending module, configured to send first random access information to a base station, where the first random access information includes first transmission information of second random access information to be received;
a receiving module, configured to receive the second random access information sent by the base station, where the second random access information includes second transmission information for sending the second random access information;
the sending module is further configured to send third random access information to perform initial access by using the first transmission information when the first transmission information matches with the second transmission information;
the sending module is further configured to send the third random access information by using an omni-directional antenna when the first transmission information is not coincident with the second transmission information;
the first transmission information and the second transmission information each include one or a combination of the following: directional antenna direction number, carrier wave unit.
4. An apparatus for initially accessing a network, the apparatus comprising:
a sending module, configured to send first random access information to a terminal, where the first random access information includes first transmission information for sending the first random access information, so that the terminal sends second random access information in a directional or omnidirectional manner according to the first transmission information to perform initial access;
A receiving module, configured to receive third random access information sent by the terminal, where the third random access information includes second transmission information of the first random access information to be received by the terminal;
when the first transmission information and the second transmission information are equal, the terminal directly adopts the first transmission information to continue random access information;
when the first transmission information and the second transmission information are unequal, transmitting random access information in an omni-directional antenna mode;
the first transmission information and the second transmission information each include one or a combination of the following: directional antenna direction number, carrier wave unit.
5. A communication device, comprising:
a device for initially accessing a network as claimed in claim 3; or (b)
The apparatus for initially accessing a network as recited in claim 4.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106900075A (en) * | 2016-05-13 | 2017-06-27 | 中国移动通信有限公司研究院 | A kind of accidental access method, device, relevant device and system |
| CN106900074A (en) * | 2016-05-13 | 2017-06-27 | 中国移动通信有限公司研究院 | A kind of accidental access method, device, relevant device and system |
| CN107645322A (en) * | 2016-07-21 | 2018-01-30 | 上海诺基亚贝尔股份有限公司 | The method and apparatus of Stochastic accessing based on wave beam forming |
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| US9699811B2 (en) * | 2012-07-12 | 2017-07-04 | Samsung Electronics Co., Ltd. | Apparatus and method for random access with multiple antennas in a wireless network |
| US11116006B2 (en) * | 2016-12-16 | 2021-09-07 | Qualcomm Incorporated | Uplink transmission parameter selection for random access initial message transmission and retransmission |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106900075A (en) * | 2016-05-13 | 2017-06-27 | 中国移动通信有限公司研究院 | A kind of accidental access method, device, relevant device and system |
| CN106900074A (en) * | 2016-05-13 | 2017-06-27 | 中国移动通信有限公司研究院 | A kind of accidental access method, device, relevant device and system |
| CN107645322A (en) * | 2016-07-21 | 2018-01-30 | 上海诺基亚贝尔股份有限公司 | The method and apparatus of Stochastic accessing based on wave beam forming |
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