CN110769515A - 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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- CN110769515A CN110769515A CN201810828001.3A CN201810828001A CN110769515A CN 110769515 A CN110769515 A CN 110769515A CN 201810828001 A CN201810828001 A CN 201810828001A CN 110769515 A CN110769515 A CN 110769515A
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000004891 communication Methods 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 222
- 230000000977 initiatory effect Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 12
- 238000001228 spectrum Methods 0.000 description 10
- 230000011664 signaling Effects 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
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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 initially accessing a network of a terminal, a method and a device for initially accessing a network of a base station, and communication equipment. The method applied to the initial access network of the terminal comprises the following steps: 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; 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 is consistent with the second transmission information, sending third random access information by using the first transmission information for initial access. The base station can be ensured to correctly receive the random access information sent by the terminal, so that the initial access between the terminal and the base station is completed, the requirement of access time delay is ensured, and the terminal can save more power.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for initially accessing a network for a terminal, a method and an apparatus for initially accessing a network for a base station, and a communication device.
Background
Currently, development work of a 5 th generation mobile communication system (5G) is actively underway. According to the future application requirements, the 5G system needs to support a variety of service scenarios, including eMBB (Enhanced Mobile Broadband), URLLC (Ultra-reliable and Low Latency Communications), and MMTC (Massive Machine Type of Communication). Since the resources of the licensed spectrum are very limited, the unlicensed spectrum is also utilized for data transmission in the 5 standard, which can provide a larger transmission bandwidth than the licensed spectrum, especially for application scenarios of large data volume such as the eMBB. However, the disadvantage of the unlicensed spectrum is also obvious, and since it should follow an LBT (listen before talk) mechanism, where the LBT mechanism is a channel access mechanism, because the availability of a channel on the unlicensed spectrum cannot be guaranteed at any time, LBT requires that a channel is monitored before data transmission, idle channel evaluation is performed, and data transmission is performed under the condition that the channel is guaranteed to be idle, so that the effect of guaranteeing delay is not ideal.
Therefore, in order to guarantee the access delay, the mechanism for a UE (User Equipment) to access the network in the unlicensed spectrum needs to be changed.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the 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 applied to an initial access network of a base station.
Still another aspect of the present invention is to provide an apparatus applied to an initial access network of a terminal.
Yet another aspect of the present invention is to provide an apparatus applied to an initial access network of a base station.
Yet another aspect of the present invention is to provide a communication device.
In view of the above, according to an aspect of the present invention, a method for initially accessing a network is provided, which is applied to a terminal, and the method includes: 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; 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 is consistent with the second transmission information, sending third random access information by using the first transmission information for initial access.
In the method for initially accessing the network, the terminal sends first random access information to the base station under the unlicensed spectrum, 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 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, it is indicated that 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 between the terminal and the base station is completed, the requirement of access delay is ensured, and the terminal can save more power.
The method for initially accessing the network according to the present invention may further have the following technical features:
in the above technical solution, preferably, the first transmission information and the second transmission information each include one or a combination of the following: directional numbering of directional antennas, carrier unit.
In this technical solution, the first transmission information and the second transmission information both include, but are not limited to, a directional number of a directional antenna and information of a carrier unit. It should be noted that the first transmission information includes a direction number of the first antenna and a first carrier unit, and the second transmission information includes a direction number of the second antenna and a second carrier unit, where the direction number of the first antenna is the same as or different from the direction number of the second antenna, and the first carrier unit is the same as or different from the second carrier unit. That is to say, when the direction number of the first transmitting antenna is the same as 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 continue sending the random access information, that is, the random access information is sent in a directional signaling sending manner, so as to reduce the probability of LBT, thereby ensuring the requirement of access delay, and reducing the interference of other communications on initial access.
In the above technical solution, the directional antenna functions such that the electromagnetic waves transmitted and received by the transmitting device in a certain specific direction or a certain number of specific directions are particularly strong, and the electromagnetic waves transmitted and received in other directions are zero or extremely small, wherein the direction number refers to a number performed in a certain specific direction.
In any of the above technical solutions, preferably, the method further includes: and when the first transmission information is not accordant with the second transmission information, sending third random access information by utilizing the omnidirectional antenna.
In the technical scheme, when the direction number of the first transmitting antenna is different from the direction number of the second transmitting antenna and/or the first transmitting carrier unit is different from the second transmitting carrier unit, the random access information is sent in an omnidirectional antenna mode, and a larger communication coverage range is ensured.
According to another aspect of the present invention, a method for initially accessing a network is provided, which is applied to a base station, and includes: 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 send second random access information directionally or omnidirectionally according to the first transmission information for initial access.
In the method for initially accessing the network, the base station sends first random access information to the terminal, wherein the first random access information comprises transmission information (first transmission information) used by the base station for actually sending the first random access information. The terminal can compare the first transmission information with second transmission information expected to be used for receiving the random access information, when the first transmission information is equal to the second transmission information, the terminal can directly adopt the first transmission information to continue the random access information, and the base station can be guaranteed to correctly receive the random access information sent by the terminal, so that the initial access between the terminal and the base station is completed, the requirement of access time delay is met, and the terminal can save more power. And when the first transmission information and the second transmission information are not equal, sending random access information by adopting an omnidirectional antenna mode, and ensuring a larger communication coverage.
The method for initially accessing the network according to the present invention may further have the following technical features:
in the foregoing 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 contains second transmission information which the terminal expects to receive the first random access information, that is, the terminal sends the transmission information which is expected to be used for receiving the random access information to the base station, so that the base station feeds back the random access information to the terminal as much as possible according to the transmission information, and the efficiency of initial access is improved.
In any of the above technical solutions, preferably, the first transmission information and the second transmission information each include one or a combination of the following: directional numbering of directional antennas, carrier unit.
In this technical solution, the first transmission information and the second transmission information both include, but are not limited to, a directional number of a directional antenna and information of a carrier unit. It should be noted that the first transmission information includes a direction number of the first antenna and a first carrier unit, and the second transmission information includes a direction number of the second antenna and a second carrier unit, where the direction number of the first antenna is the same as or different from the direction number of the second antenna, and the first carrier unit is the same as or different from the second carrier unit. That is to say, when the terminal obtains that the direction number of the first transmitting antenna is the same as the direction number of the second transmitting antenna by comparison, and the first transmitting carrier unit is the same as the second transmitting carrier unit, the terminal directly adopts the direction number of the first directional antenna and the first carrier unit to continuously send the random access information, that is, adopts a directional signaling sending mode to send the random access information, 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 that the direction number of the first transmitting antenna is different from the direction number of the second transmitting antenna and/or the first transmitting carrier unit is different from the second transmitting carrier unit, the random access information is sent in an omnidirectional antenna mode, and a larger communication coverage range is ensured.
In the above technical solution, the directional antenna functions such that the electromagnetic waves transmitted and received by the transmitting device in a certain specific direction or a certain number of specific directions are particularly strong, and the electromagnetic waves transmitted and received in other directions are zero or extremely small, wherein the direction number refers to a number performed in a certain specific direction.
According to another aspect of the present invention, an apparatus for initially accessing a network is provided, which is applied to a terminal, and includes: 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 also used for sending third random access information by using the first transmission information to carry out initial access when the first transmission information is consistent with the second transmission information.
In the device for initially accessing the network, provided by the invention, under an unlicensed spectrum, the terminal sends first random access information to the base station, the first random access information contains first transmission information of second random access information to be received by the terminal, that is, the terminal also sends 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, it is indicated that 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 between the terminal and the base station is completed, the requirement of access delay is ensured, and the terminal can save more power.
The above device for initially accessing a network according to the present invention may further have the following technical features:
in the above technical solution, preferably, the first transmission information and the second transmission information each include one or a combination of the following: directional numbering of directional antennas, carrier unit.
In this technical solution, the first transmission information and the second transmission information both include, but are not limited to, a directional number of a directional antenna and information of a carrier unit. It should be noted that the first transmission information includes a direction number of the first antenna and a first carrier unit, and the second transmission information includes a direction number of the second antenna and a second carrier unit, where the direction number of the first antenna is the same as or different from the direction number of the second antenna, and the first carrier unit is the same as or different from the second carrier unit. That is to say, when the direction number of the first transmitting antenna is the same as 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 continue sending the random access information, that is, the random access information is sent in a directional signaling sending manner, so as to reduce the probability of LBT, thereby ensuring the requirement of access delay, and reducing the interference of other communications on initial access.
In the above technical solution, the directional antenna functions such that the electromagnetic waves transmitted and received by the transmitting device in a certain specific direction or a certain number of specific directions are particularly strong, and the electromagnetic waves transmitted and received in other directions are zero or extremely small, wherein the direction number refers to a number performed in a certain specific direction.
In any of the above technical solutions, preferably, the sending module is further configured to send the third random access information by using the omni-directional antenna when the first transmission information does not coincide with the second transmission information.
In the technical scheme, when the direction number of the first transmitting antenna is different from the direction number of the second transmitting antenna and/or the first transmitting carrier unit is different from the second transmitting carrier unit, the random access information is sent in an omnidirectional antenna mode, and a larger communication coverage range is ensured.
According to another aspect of the present invention, an apparatus for initially accessing a network is provided, which is applied to a base station, and includes: the sending module 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 sends second random access information directionally or omnidirectionally according to the first transmission information to perform initial access.
In the device for initially accessing the network, the base station sends the first random access information to the terminal, wherein the first random access information comprises transmission information (first transmission information) used by the base station for actually sending the first random access information. The terminal can compare the first transmission information with second transmission information expected to be used for receiving the random access information, when the first transmission information is equal to the second transmission information, the terminal can directly adopt the first transmission information to continue the random access information, and the base station can be guaranteed to correctly receive the random access information sent by the terminal, so that the initial access between the terminal and the base station is completed, the requirement of access time delay is met, and the terminal can save more power. And when the first transmission information and the second transmission information are not equal, sending random access information by adopting an omnidirectional antenna mode, and ensuring a larger communication coverage.
The above device for initially accessing a network according to the present invention may further have the following technical features:
in the above technical solution, preferably, the method further includes: and 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 contains second transmission information which the terminal expects to receive the first random access information, that is, the terminal sends the transmission information which is expected to be used for receiving the random access information to the base station, so that the base station feeds back the random access information to the terminal as much as possible according to the transmission information, and the efficiency of initial access is improved.
In any of the above technical solutions, preferably, the first transmission information and the second transmission information each include one or a combination of the following: directional numbering of directional antennas, carrier unit.
In this technical solution, the first transmission information and the second transmission information both include, but are not limited to, a directional number of a directional antenna and information of a carrier unit. It should be noted that the first transmission information includes a direction number of the first antenna and a first carrier unit, and the second transmission information includes a direction number of the second antenna and a second carrier unit, where the direction number of the first antenna is the same as or different from the direction number of the second antenna, and the first carrier unit is the same as or different from the second carrier unit. That is to say, when the terminal obtains that the direction number of the first transmitting antenna is the same as the direction number of the second transmitting antenna by comparison, and the first transmitting carrier unit is the same as the second transmitting carrier unit, the terminal directly adopts the direction number of the first directional antenna and the first carrier unit to continuously send the random access information, that is, adopts a directional signaling sending mode to send the random access information, 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 that the direction number of the first transmitting antenna is different from the direction number of the second transmitting antenna and/or the first transmitting carrier unit is different from the second transmitting carrier unit, the random access information is sent in an omnidirectional antenna mode, and a larger communication coverage range is ensured.
In the above technical solution, the directional antenna functions such that the electromagnetic waves transmitted and received by the transmitting device in a certain specific direction or a certain number of specific directions are particularly strong, and the electromagnetic waves transmitted and received in other directions are zero or extremely small, wherein the direction number refers to a number performed in a certain specific direction.
According to another aspect of the present invention, a communication device is provided, which includes the apparatus applied to the initial access network of the terminal in any of the above technical solutions, or the apparatus applied to the initial access network of the base station in any of the above technical solutions.
The communication device provided by the present invention includes any of the above-mentioned technical solutions, or any of the above-mentioned technical solutions, which is applied to the initial access network of the terminal, or any of the above-mentioned technical solutions, and can achieve all the advantages of any of the above-mentioned technical solutions, which is applied to the initial access network of the terminal, or any of the above-mentioned technical solutions, which is applied to the initial access network of the base station.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 shows a flow diagram of a method of initial access to a network according to an embodiment of the invention;
fig. 2 shows a flow diagram of a method of initial access to a network of another embodiment of the invention;
fig. 3 shows a flow diagram of a method of initial access to a network of one embodiment of the invention;
fig. 4 shows a flow diagram of a method of initial access to a network of another embodiment of the invention;
fig. 5 shows a schematic diagram of an apparatus of an initial access network of an embodiment of the invention;
fig. 6 shows a schematic diagram of an apparatus of an initial access network of an embodiment of the invention;
fig. 7 shows a schematic diagram of an apparatus of an initial access network of another embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
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 specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
Fig. 1 is a flowchart illustrating a method for initially accessing a network according to an embodiment of the present invention. Wherein, the method comprises the following steps:
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;
and 106, when the first transmission information is consistent with the second transmission information, sending third random access information by using the first transmission information to perform initial access.
In the method for initially accessing the network, the terminal sends first random access information to the base station under the unlicensed spectrum, 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 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, it is indicated that 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 between the terminal and the base station is completed, the requirement of access delay is ensured, and the terminal can save more power.
In a specific embodiment, the terminal may be a network device such as a smart phone, a tablet computer, and a notebook computer.
Fig. 2 shows a flow diagram of a method of initial access to a network according to another embodiment of the invention. Wherein, the method comprises the following steps:
In this embodiment, when the first transmission information does not coincide with the second transmission information, the random access information is transmitted in an omni-directional antenna manner, so as to ensure a larger communication coverage area.
In one embodiment of the present invention, preferably, the first transmission information and the second transmission information each include one or a combination of the following: directional numbering of directional antennas, carrier unit.
In this embodiment, the first transmission information and the second transmission information each include, but are not limited to, a directional number of a directional antenna, and information of a carrier unit. It should be noted that the first transmission information includes a direction number of the first antenna and a first carrier unit, and the second transmission information includes a direction number of the second antenna and a second carrier unit, where the direction number of the first antenna is the same as or different from the direction number of the second antenna, and the first carrier unit is the same as or different from the second carrier unit. That is to say, when the direction number of the first transmitting antenna is the same as 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 continue sending the random access information, that is, the random access information is sent in a directional signaling sending manner, so as to reduce the probability of LBT, thereby ensuring the requirement of access delay, and reducing the interference of other communications on initial access. When the direction number of the first transmitting antenna is different from the direction number of the second transmitting antenna and/or the first transmitting carrier unit is different from the second transmitting carrier unit, the random access information is sent in an omnidirectional antenna mode, and a larger communication coverage range 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, the CC (Carrier unit) of each transmission bandwidth of 5MHz is different from the CC of 20MHz, and the CC between the 4 transmission bandwidths is also different, which facilitates terminal power saving.
In the above embodiments, the directional antenna functions such that the electromagnetic waves transmitted and received by the transmitting device in one or more specific directions are particularly strong, and the electromagnetic waves transmitted and received in other directions are zero or extremely small, wherein the direction number refers to the number performed in one specific direction.
Fig. 3 is a flowchart illustrating a method for initially accessing a network according to an embodiment of the present invention. Wherein, the method comprises the following steps:
In the method for initially accessing the network, the base station sends first random access information to the terminal, wherein the first random access information comprises transmission information (first transmission information) used by the base station for actually sending the first random access information. The terminal can compare the first transmission information with second transmission information expected to be used for receiving the random access information, when the first transmission information is equal to the second transmission information, the terminal can directly adopt the first transmission information to continue the random access information, and the base station can be guaranteed to correctly receive the random access information sent by the terminal, so that the initial access between the terminal and the base station is completed, the requirement of access time delay is met, and the terminal can save more power. And when the first transmission information and the second transmission information are not equal, sending random access information by adopting an omnidirectional antenna mode, and ensuring a larger communication coverage.
In a specific embodiment, the terminal may be a network device such as a smart phone, a tablet computer, and a notebook computer.
Fig. 4 shows a flow diagram of a method of initial access to a network according to another embodiment of the invention. Wherein, the method comprises the following steps:
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 contains 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 random access information to the terminal as much as possible according to the transmission information, and the efficiency of initial access is improved.
In one embodiment of the present invention, preferably, the first transmission information and the second transmission information each include one or a combination of the following: directional numbering of directional antennas, carrier unit.
In this embodiment, the first transmission information and the second transmission information each include, but are not limited to, a directional number of a directional antenna, and information of a carrier unit. It should be noted that the first transmission information includes a direction number of the first antenna and a first carrier unit, and the second transmission information includes a direction number of the second antenna and a second carrier unit, where the direction number of the first antenna is the same as or different from the direction number of the second antenna, and the first carrier unit is the same as or different from the second carrier unit. That is to say, when the terminal obtains that the direction number of the first transmitting antenna is the same as the direction number of the second transmitting antenna by comparison, and the first transmitting carrier unit is the same as the second transmitting carrier unit, the terminal directly adopts the direction number of the first directional antenna and the first carrier unit to continuously send the random access information, that is, adopts a directional signaling sending mode to send the random access information, 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 that the direction number of the first transmitting antenna is different from the direction number of the second transmitting antenna and/or the first transmitting carrier unit is different from the second transmitting carrier unit, the random access information is sent in an omnidirectional antenna mode, and a larger communication coverage range is ensured.
In the above embodiments, the directional antenna functions such that the electromagnetic waves transmitted and received by the transmitting device in one or more specific directions are particularly strong, and the electromagnetic waves transmitted and received in other directions are zero or extremely small, wherein the direction number refers to the number performed in one specific direction.
In a third aspect of the present invention, an apparatus for initiating a network is provided, which is applied to a terminal, and fig. 5 shows a schematic diagram of an apparatus 50 for initiating 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 by using the first transmission information for initial access when the first transmission information matches the second transmission information.
In the device 50 for initially accessing a network provided by the present invention, under an unlicensed spectrum, a terminal sends 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 by the terminal, that is, the terminal also sends first transmission information that is 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, it is indicated that 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 between the terminal and the base station is completed, the requirement of access delay is ensured, and the terminal can save more power.
In a specific embodiment, the terminal may be a network device such as a smart phone, a tablet computer, and a notebook computer. The sending module 502 may be a transmitter or an antenna, etc., and the receiving module 504 may be a receiver or an antenna, etc.
In one embodiment of the present invention, preferably, the first transmission information and the second transmission information each include one or a combination of the following: directional numbering of directional antennas, carrier unit.
In this embodiment, the first transmission information and the second transmission information each include, but are not limited to, a directional number of a directional antenna, and information of a carrier unit. It should be noted that the first transmission information includes a direction number of the first antenna and a first carrier unit, and the second transmission information includes a direction number of the second antenna and a second carrier unit, where the direction number of the first antenna is the same as or different from the direction number of the second antenna, and the first carrier unit is the same as or different from the second carrier unit. That is to say, when the direction number of the first transmitting antenna is the same as 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 continue sending the random access information, that is, the random access information is sent in a directional signaling sending manner, so as to reduce the probability of LBT, thereby ensuring the requirement of access delay, and reducing the interference of other communications on 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, the CC (Carrier unit) of each transmission bandwidth of 5MHz is different from the CC of 20MHz, and the CC between the 4 transmission bandwidths is also different, which facilitates terminal power saving.
In the above embodiments, the directional antenna functions such that the electromagnetic waves transmitted and received by the transmitting device in one or more specific directions are particularly strong, and the electromagnetic waves transmitted and received in other directions are zero or extremely small, wherein the direction number refers to the number performed in one specific direction.
In an embodiment of the present invention, preferably, the sending module 502 is further configured to send the third random access information by using the 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 transmitting antenna is different from the direction number of the second transmitting antenna, and/or the first transmitting carrier unit is different from the second transmitting carrier unit, the random access information is sent in an omnidirectional antenna manner, so that a larger communication coverage area is ensured.
In the embodiment of the fourth aspect of the present invention, an apparatus for initiating an access network is provided, which is applied to a base station, and fig. 6 shows a schematic diagram of an apparatus 60 for initiating an access network according to an embodiment of the present invention. Wherein the device 60 comprises:
a sending module 602, 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 directionally or omnidirectionally according to the first transmission information to perform initial access.
In the device 60 for initially accessing a network, the base station sends the first random access information to the terminal, where the first random access information includes 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 second transmission information expected to be used for receiving the random access information, when the first transmission information is equal to the second transmission information, the terminal can directly adopt the first transmission information to continue the random access information, and the base station can be guaranteed to correctly receive the random access information sent by the terminal, so that the initial access between the terminal and the base station is completed, the requirement of access time delay is met, and the terminal can save more power. And when the first transmission information and the second transmission information are not equal, sending random access information by adopting an omnidirectional antenna mode, and ensuring a larger communication coverage.
In a specific embodiment, the terminal may be a network device such as a smart phone, a tablet computer, and a notebook computer. The sending module 602 may be a transmitter or an antenna, etc.
Fig. 7 shows a schematic diagram of an apparatus 70 for initial network access 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 a first random access information to be received by the terminal;
a sending module 704, 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 directionally or omnidirectionally 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 contains 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 random access information to the terminal as much as possible according to the transmission information, and the efficiency of initial access is improved.
In one embodiment of the present invention, preferably, the first transmission information and the second transmission information each include one or a combination of the following: directional numbering of directional antennas, carrier unit.
In this embodiment, the first transmission information and the second transmission information each include, but are not limited to, a directional number of a directional antenna, and information of a carrier unit. It should be noted that the first transmission information includes a direction number of the first antenna and a first carrier unit, and the second transmission information includes a direction number of the second antenna and a second carrier unit, where the direction number of the first antenna is the same as or different from the direction number of the second antenna, and the first carrier unit is the same as or different from the second carrier unit. That is to say, when the terminal obtains that the direction number of the first transmitting antenna is the same as the direction number of the second transmitting antenna by comparison, and the first transmitting carrier unit is the same as the second transmitting carrier unit, the terminal directly adopts the direction number of the first directional antenna and the first carrier unit to continuously send the random access information, that is, adopts a directional signaling sending mode to send the random access information, 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 that the direction number of the first transmitting antenna is different from the direction number of the second transmitting antenna and/or the first transmitting carrier unit is different from the second transmitting carrier unit, the random access information is sent in an omnidirectional antenna mode, and a larger communication coverage range is ensured.
In the above embodiments, the directional antenna functions such that the electromagnetic waves transmitted and received by the transmitting device in one or more specific directions are particularly strong, and the electromagnetic waves transmitted and received in other directions are zero or extremely small, wherein the direction number refers to the number performed in one specific direction.
In a specific embodiment, the terminal may be a network device such as a smart phone, a tablet computer, and a notebook computer. The receiving module 702 may be a receiver or an antenna, etc., and the sending module 704 may be a transmitter or an antenna, etc.
In an embodiment of the fifth aspect of the present invention, a communication device is provided, which includes the apparatus applied to the initial access network of the terminal in any of the above embodiments, or the apparatus applied to the initial access network of the base station in any of the above embodiments.
The communication device provided by the present invention includes the apparatus applied to the initial access network of the terminal in any of the above embodiments, or the apparatus applied to the initial access network of the base station in any of the above embodiments, and can achieve all the advantages of the apparatus applied to the initial access network of the terminal in any of the above embodiments, or the apparatus applied to the initial access network of the base station in any of the above embodiments.
In the description herein, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly stated or limited otherwise; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means 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 invention. In this specification, the schematic representations of the terms used above 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 a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. A method for initially accessing a network, the method being applied to a terminal and comprising:
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;
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 is consistent with the second transmission information, sending third random access information by using the first transmission information to perform initial access.
2. The method of initiating access to a network of claim 1,
the first transmission information and the second transmission information each comprise one or a combination of the following: directional numbering of directional antennas, carrier unit.
3. The method of initiating access to a network of claim 1 or 2, further comprising:
and when the first transmission information is not accordant with the second transmission information, transmitting the third random access information by utilizing an omnidirectional antenna.
4. A method for initially accessing a network, the method being applied to a base station and comprising:
and sending first random access information to a terminal, wherein the first random access information comprises first transmission information for sending the first random access information, so that the terminal can send second random access information directionally or omnidirectionally according to the first transmission information for initial access.
5. The method of initial access to network according to claim 4, further comprising, before the sending the first random access information to the terminal:
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.
6. The method of initiating access to a network of claim 5,
the first transmission information and the second transmission information each comprise one or a combination of the following: directional numbering of directional antennas, carrier unit.
7. An apparatus for initially accessing a network, the apparatus being applied to a terminal, and 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 by using the first transmission information to perform initial access when the first transmission information matches the second transmission information.
8. The apparatus of initial access to a network of claim 7,
the first transmission information and the second transmission information each comprise one or a combination of the following: directional numbering of directional antennas, carrier unit.
9. The apparatus of an initial access network according to claim 7 or 8,
the sending module is further configured to send the third random access information by using an omni-directional antenna when the first transmission information does not match the second transmission information.
10. An apparatus for initiating access to a network, the apparatus being applied to a base station, the apparatus comprising:
the terminal comprises a sending module, a receiving module and a sending module, wherein the sending module is used for sending first random access information to the terminal, and the first random access information comprises first transmission information for sending the first random access information, so that the terminal can send second random access information directionally or omnidirectionally according to the first transmission information for initial access.
11. The apparatus of initial access to a network of claim 10, further comprising:
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.
12. The apparatus of initial access to a network of claim 11,
the first transmission information and the second transmission information each comprise one or a combination of the following: directional numbering of directional antennas, carrier unit.
13. A communication device, comprising:
means of initiating access to a network according to any one of claims 7 to 9; or
An arrangement of an initial access network according to any of claims 10 to 12.
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