CN115314842A - Information sharing method and device, access point equipment and user equipment - Google Patents

Information sharing method and device, access point equipment and user equipment Download PDF

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Publication number
CN115314842A
CN115314842A CN202110496338.0A CN202110496338A CN115314842A CN 115314842 A CN115314842 A CN 115314842A CN 202110496338 A CN202110496338 A CN 202110496338A CN 115314842 A CN115314842 A CN 115314842A
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information
shared information
shared
access point
notification message
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CN202110496338.0A
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Chinese (zh)
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邓云
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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Priority to CN202110496338.0A priority Critical patent/CN115314842A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H04W48/04—Access restriction performed under specific conditions based on user or terminal location or mobility data, e.g. moving direction, speed

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

An information sharing method and device, an access point device and a user device are provided, and the information sharing method comprises the following steps: obtaining shared information to be shared from at least one user equipment; broadcasting a notification message, wherein the notification message comprises an RNTI corresponding to the shared information, so that user equipment receiving the shared information descrambles the downlink control signaling by using the RNTI to obtain the position of a time-frequency resource bearing the shared information; and transmitting the shared information at the position of the time-frequency resource bearing the shared information. The technical scheme of the invention can realize high efficiency of information sharing.

Description

Information sharing method and device, access point equipment and user equipment
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an information sharing method and apparatus, an access point device, and a user equipment.
Background
Now, a New wireless communication system is considered to be introduced, a terminal may Access to the internet through an Access Point (AP), and the terminal and the AP are connected by using a Long Term Evolution (LTE) or New Radio (NR) wireless technology. The access point AP may be deployed in a licensed spectrum or in an unlicensed spectrum. The access point AP can be flexibly deployed in places such as families, enterprises and the like to provide services for a small part of users. The access point AP serves fewer users and may be more stationary.
In an AP deployment scenario, a certain user generally needs to share information with multiple users, and if an existing mechanism is adopted, the user needs to transmit the information to a core network and then the core network transmits the information to other users; or the core network initiates a multicast service and shares the information to be shared in a multicast mode.
However, the existing sharing methods all require core network participation, and the delay of information transmission is increased when information is forwarded through the core network.
Disclosure of Invention
The invention solves the technical problem of how to realize the high efficiency of information sharing.
In order to solve the above technical problem, an embodiment of the present invention provides an information sharing method, where the information sharing method includes: obtaining shared information to be shared from at least one user device; broadcasting a notification message, wherein the notification message comprises an RNTI corresponding to the shared information, so that user equipment receiving the shared information descrambles the downlink control signaling by using the RNTI to obtain the position of a time-frequency resource bearing the shared information; and transmitting the shared information at the position of the time-frequency resource bearing the shared information.
Optionally, the notification message further includes a search space, so that the ue receiving the shared information descrambles the downlink control signaling with the RNTI in the search space.
Optionally, before the broadcasting the notification message, the method further includes: and configuring a search space for receiving the notification message and receiving the RNTI in a system message, and sending out the search space and the RNTI.
Optionally, before the obtaining of the shared information to be shared from the at least one user equipment, the method further includes: receiving a first sharing request from the at least one user equipment, where the first sharing request is used to request sharing of the shared information, and the first sharing request includes a target range of sharing.
Optionally, the target range includes one or more of: target area, target object and target frequency.
Optionally, the broadcasting the notification message includes: broadcasting the notification message at a target cell or target frequency indicated by the target range.
Optionally, the broadcasting the notification message includes: if the target cell indicated by the target range or the cell where the target object is located does not belong to the cell governed by the current access point equipment, sending a second sharing request to the target access point equipment to which the target cell belongs; and responding to the feedback permission of the target access point equipment to share, forwarding the sharing information to the target access point so as to enable the target access point equipment to broadcast the notification message and transmit the sharing information.
Optionally, the second sharing request includes one or more of the following: attribute information of the shared information and a target range of the shared information to be shared.
Optionally, the data packets sharing information have consecutive sequence numbers, and the method further includes: receiving sequence number feedback information sent by the target access point equipment, wherein the sequence number feedback information is used for indicating the sequence number of a data packet lacking in the target access point equipment; and if the data packet pointed by the sequence number is locally provided, directly forwarding the data packet to the target access point equipment, or if the data packet pointed by the sequence number is not locally provided, requesting the data packet from the at least one user equipment and forwarding the data packet to the target access point equipment.
Optionally, the notification message further includes attribute information of the shared information, whether the current access point device allows sharing, a type of the shared information allowed by the current access point device, a size of the shared information allowed, and/or a maximum transmission rate of the shared information allowed.
Optionally, the attribute information of the shared information includes one or more of the following: the type, name, size, sharer information and target object information of the shared information.
In order to solve the above technical problem, an embodiment of the present invention further discloses an information sharing method, where the information sharing method includes: receiving a notification message from an access point device to determine that the access point device allows sharing; and sending shared information to be shared to the access point equipment so that the access point equipment broadcasts a new notification message, wherein the new notification message comprises an RNTI (radio network temporary identifier) corresponding to the shared information and a search space, so that user equipment receiving the shared information descrambles a downlink control signaling by using the RNTI in the search space to obtain the position of a time-frequency resource bearing the shared information.
Optionally, before sending the shared information to be shared to the access point device, the method further includes: sending a first sharing request to the access point device, where the first sharing request is used to request sharing of the shared information, and the first sharing request includes a target sharing range.
Optionally, the sending, to the access point device, the shared information to be shared includes: and sending the shared information by using the special data radio bearer allocated by the access point equipment.
Optionally, the sending the shared information to be shared to the access point device includes: continuously determining the PDCP sequence number of the data packet of the shared information from a preset initial number according to a preset interval; and sending out the data packet of the shared information.
Optionally, the information sharing method further includes: and when the access point equipment performs switching, the PDCP sequence number of the data packet is maintained to be continuous before and after the switching.
The embodiment of the invention also discloses an information sharing method, which comprises the following steps: receiving a notification message, wherein the notification message comprises an RNTI (radio network temporary identifier) corresponding to the shared information and a search space; descrambling the downlink control signaling by using the RNTI in the search space to obtain the position of the time-frequency resource bearing the shared information; and receiving the shared information at the position of the time-frequency resource bearing the shared information.
The embodiment of the invention also discloses an information sharing device, which comprises: the sharing information acquisition module is used for acquiring sharing information to be shared from at least one user device; a broadcast module, configured to broadcast a notification message, where the notification message includes an RNTI corresponding to the shared information, so that a user equipment receiving the shared information uses the RNTI to descramble a downlink control signaling, and obtains a position of a time-frequency resource bearing the shared information; and the shared information transmission module is used for transmitting the shared information at the position of the time-frequency resource bearing the shared information.
The embodiment of the invention also discloses an information sharing device, which comprises: a notification message receiving module, configured to receive a notification message from an access point device to determine that the access point device allows sharing; and the shared information sending module is used for sending shared information to be shared to the access point equipment so that the access point equipment can broadcast a new notification message, wherein the new notification message comprises an RNTI (radio network temporary identifier) corresponding to the shared information and a search space, so that user equipment receiving the shared information can descramble the downlink control signaling by using the RNTI in the search space to obtain the position of a time-frequency resource bearing the shared information.
The embodiment of the invention also discloses an information sharing device, which comprises: a notification message receiving module, configured to receive a notification message, where the notification message includes an RNTI and a search space corresponding to shared information; a resource obtaining module, configured to descramble the downlink control signaling by using the RNTI in the search space, and obtain a location of a time-frequency resource bearing the shared information; and the shared information receiving module is used for receiving the shared information at the position of the time-frequency resource bearing the shared information.
The embodiment of the invention also discloses a computer readable storage medium, which is stored with a computer program, and is characterized in that the computer program executes the steps of the information sharing method when being executed by a processor.
The embodiment of the invention also discloses access point equipment, which comprises a memory and a processor, wherein the memory is stored with a computer program capable of running on the processor, and the access point equipment is characterized in that the processor executes the information sharing method when running the computer program.
The embodiment of the invention also discloses user equipment which comprises a memory and a processor, wherein the memory is stored with a computer program capable of running on the processor, and the processor executes any one of the information sharing methods when running the computer program.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
in the technical scheme of the invention, when the user equipment needs to share information in the local area network, the user equipment can send the shared information to be shared to the access point equipment, and the access point equipment adopts a multicast mode to broadcast the notification message, wherein the notification message carries the transmission resource position of the shared information. The device receiving the shared information can acquire the time-frequency resource position of the shared information by receiving the notification information, and receive the shared information at the time-frequency resource position. According to the technical scheme, information can be shared under the condition that a core network is not influenced, namely the core network is not needed, the information transmission time delay is reduced, and the information sharing efficiency is improved.
Further, if the target cell indicated by the target range does not belong to the cell governed by the current access point device, a second sharing request is sent to the target access point device to which the target cell belongs. According to the technical scheme, the sharing request is transmitted among the access point devices, information sharing among different local area networks can be achieved, and the applicable range of information sharing is enlarged.
Drawings
Fig. 1 is a flowchart of an information sharing method according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating an exemplary application scenario of the present invention;
FIG. 3 is a schematic diagram of another specific application scenario of an embodiment of the present invention;
FIG. 4 is a flowchart illustrating another information sharing method according to an embodiment of the present invention;
fig. 5 is a flowchart of another information sharing method according to an embodiment of the present invention;
fig. 6 is a detailed flowchart of an information sharing method according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an information sharing apparatus according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another information sharing apparatus according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another information sharing apparatus according to an embodiment of the invention.
Detailed Description
As described in the background art, all existing sharing methods require a core network to participate, and the delay of information transmission is increased when information is forwarded through the core network.
In the technical scheme of the invention, when the user equipment needs to share information in the local area network, the user equipment can send the shared information to be shared to the access point equipment, and the access point equipment adopts a multicast mode to broadcast the notification message, wherein the notification message carries the transmission resource position of the shared information. The device receiving the shared information can acquire the time-frequency resource position of the shared information by receiving the notification information, and receive the shared information at the time-frequency resource position. The technical scheme of the invention can realize information sharing without influencing a core network, namely, the participation of the core network is not needed, thereby reducing the information transmission delay and improving the information sharing efficiency.
The technical scheme of the invention can be applied to 5G (5 Generation) communication systems, 4G and 3G communication systems, and various future new communication systems such as 6G and 7G.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a flowchart of an information sharing method according to an embodiment of the present invention.
The information sharing method may be used for the access point device, that is, the access point device may perform each step of the information method.
Specifically, the information sharing method may include the following steps:
step S101: obtaining shared information to be shared from at least one user equipment;
step S102: broadcasting a notification message, wherein the notification message comprises an RNTI corresponding to the shared information, so that user equipment receiving the shared information descrambles the downlink control signaling by using the RNTI to obtain the position of a time-frequency resource bearing the shared information;
step S103: and transmitting the shared information at the position of the time-frequency resource bearing the shared information.
It should be noted that, the sequence numbers of the steps in this embodiment do not represent a limitation on the execution order of the steps.
In this embodiment, the notification message may only include the RNTI corresponding to the shared information, and the search space used by the notification message is adopted as the default search space in this case. That is, the UE may descramble downlink control signaling using the RNTI within a search space used by the notification message.
In the embodiment of the invention, the access point device can provide wireless service in a home or a company, and is deployed in an unlicensed spectrum or a licensed spectrum. The access point device manages one or more serving cells. For example, the AP manages 3 serving cells, and a User Equipment (UE) expects to share shared information, which may be a document, audio, or video, with other UEs in the three serving cells.
The UE expecting to share may send the shared information to be shared to the access point device. In a specific implementation of step S101, the access point device may receive the shared information.
In order to make the UE receiving the shared information aware that there is information to receive, the access point device may broadcast a notification message to wake up the UE.
In a specific implementation, the access point device may configure a time-frequency position of the transmission resource for the shared information, and configure a corresponding Radio Network Temporary Identity (RNTI) and a search space for the shared information in the broadcast message. Therefore, the notification message may include the RNTI and the search space corresponding to the shared information.
Specifically, the different shared information may correspond to different RNTIs, for example, the shared information of UE1 corresponds to RNTI1, and the shared information of UE2 corresponds to RNTI2. Different pieces of shared information may also correspond to the same RNTI, but in this case, different pieces of shared information occupy resources in different time domains when being transmitted, that is, different pieces of shared information have different sending times. Different shared information may correspond to different search spaces, or may correspond to the same search space.
Further, when broadcasting the notification message, the access point device may reasonably set an update period of the notification message in combination with a delay requirement of the shared information to be shared. If the requirement on the time delay of the shared information is not high, a longer updating period can be configured to reduce the frequency of obtaining the notification information by the UE.
In the specific implementation of step S103, the access point device transmits the shared information at the location of the time-frequency resource bearing the shared information, and the user equipment receiving the shared information receives the shared information at the location of the time-frequency resource.
In one non-limiting embodiment, the notification message also includes a search space. That is, the UE may descramble downlink control signaling using the RNTI within a search space indicated by the notification message.
Specifically, the UEs in the cell governed by the access point device can all receive the broadcasted notification message. And the UE receiving the notification message judges whether the UE is the user equipment needing to receive the shared information according to the information such as the UE identification, the group identification or the sharer identification carried in the notification message. If so, the user equipment receiving the shared information descrambles the downlink control signaling by using the RNTI in a search space indicated by the notification message, and obtains the position of the time-frequency resource bearing the shared information. If not, the UE does not need to descramble the downlink control signaling by using the RNTI in the search space. In this scenario, the shared information is shared for a specific UE.
In another optional embodiment, if the notification message does not carry information such as a UE identity, a group identity, or a sharer identity, the UE that receives the notification message descrambles the downlink control signaling directly using the RNTI in the search space indicated by the notification message. In this scenario, the shared information is shared for all UEs.
In the embodiment of the invention, when the user equipment needs to share information in the local area network, the user equipment can send the shared information to be shared to the access point equipment, and the access point equipment adopts a multicast mode to broadcast the notification message, wherein the notification message carries the transmission resource position of the shared information. The device for receiving the shared information can acquire the existence of the shared information by receiving the notification information and acquire information such as RNTI (radio network temporary identifier) for receiving the shared information, and further acquire the time frequency resource position where the shared information is located by detecting the downlink control signaling scrambled by the RNTI and receive the shared information at the time frequency resource position. The technical scheme of the invention can realize information sharing without influencing a core network, namely, the participation of the core network is not needed, thereby reducing the information transmission delay and improving the information sharing efficiency.
In a non-limiting embodiment of the present invention, the access point device configures a search space for receiving the notification message and receives the RNTI in the system message, and sends out the search space and the RNTI.
In this embodiment, the access point device AP configures a search space corresponding to the notification message and receives the RNTI in the system message, so that the UE can detect the notification message by using the received RNTI in the search space corresponding to the notification message after receiving the system message.
In one embodiment of the present invention, the notification message may indicate one or more of the following information in addition to the RNTI and the search space of the shared information:
whether sharing is allowed (aiming at the terminal needing to share information);
the type of information allowed to be shared, the size of the information allowed to be shared, or the maximum rate (for the terminal needing to share the information);
the name, type, size, sharer information, or object information that needs to receive shared information of shared information that is to be or is being shared (for a terminal that receives shared information);
and detecting time distribution information of the physical downlink control signaling in the search space, such as a detection period, a detection duration lasting in one period, and the like (for a terminal receiving the shared information).
In this embodiment, information (such as a type and a size) allowing sharing is indicated in the notification message, so that the AP can quickly adjust the shared information, and update delay caused by configuring the information through system messages is avoided (when a system message is updated, it is necessary to first indicate the system message to be updated through a paging message in a current system message modification period, and then indicate the updated system message in a next system message modification period, where the modification period of the system message may be longer, for example, 1 second, which is longer for the AP to quickly adjust the information allowing sharing according to a cell load.
In a specific implementation, for a UE expecting to share information, whether its own shared information can be shared can be known through the indication of whether sharing is allowed in the notification message, so as to determine whether to initiate the first sharing request.
In a specific implementation, for a UE receiving shared information, the shared information can be acquired more efficiently by detecting time distribution information of a physical downlink control signaling in a notification message, so as to avoid unnecessary waiting.
In a non-limiting embodiment of the present invention, after obtaining the sharable shared information, if the shared information that the UE desires to share belongs to the information type that the AP allows sharing, the UE may initiate a sharing request (i.e., a first sharing request) to the AP. The UE optionally indicates a target range to be shared in the sharing request, which may specifically be a target area, a target object, and a target frequency to be shared. After receiving the first sharing request, the AP determines whether to allow sharing. If the AP allows sharing, a dedicated data radio bearer may be allocated to the UE, so that the UE transmits the shared information to be shared to the AP.
In a non-limiting embodiment of the present invention, if the terminal indicates a shared target area, such as a current cell or a peripheral cell, to the AP, the AP may share the shared information in these areas. If the terminal indicates the shared target object to the AP, specifically, the identifier of the object or the group number to which the object belongs, the AP needs to determine, according to the information registered or accessed by the object, a cell in which the target object that needs to receive the shared information is located, and then sends the shared information in the cell in which the target object is located. And if the terminal indicates the shared target frequency to the AP, the AP sends the shared information on the target frequency.
In a specific application scenario of the present invention, referring to fig. 2, the ap20 broadcasts a notification message. The UE21 expecting to share the information knows whether the shared information is allowed to be shared through the broadcast message of the AP 20. In the case where the AP20 allows sharing, the UE21 expecting to share information initiates a first sharing request. The first share request may include a target object, such as an identification of the UE22 receiving the shared information. The AP20 determines whether or not the UE21 expecting to share the information is allowed to share the information, and if so, allocates a dedicated data radio bearer a thereto. The UE21 desiring to share information transmits the shared information to the AP20 through the dedicated data radio bearer a.
The AP20 may start sending the shared information after receiving the shared information, for example, the shared information may be received completely, or a part of the shared information may be received. Specifically, the AP20 may carry the RNTI and the search space corresponding to the shared information in the notification message and broadcast the notification message. Specifically, the notification message is sent in the cell where the UE22 receiving the shared information is located. The UE22 receiving the shared information obtains the RNTI and the search space for transmitting the shared information through the notification message, further detects the downlink control signaling in the search space according to the RNTI, obtains the resource location used by the shared information from the downlink control signaling, and receives the shared information at the resource location.
Thus, sharing of shared information between the UE21 desiring to share information and the UE22 receiving the shared information is completed. The sharing process does not need the participation of a core network, and the time delay of information sharing is reduced.
In a specific application scenario of the present invention, referring to fig. 3, the ap30 broadcasts a notification message. The UE32 expecting to share the information knows whether the sharing information is allowed to be shared through the broadcast message of the AP 30. In the case where the AP30 allows sharing, the UE33 receiving the sharing information initiates a first sharing request. The first share request may include an identification of the target cell. The AP30 determines whether the UE32 expecting to share the information is allowed to share the information, and if so, allocates a dedicated data radio bearer a to the UE. The UE32 desiring to share information transmits the shared information to the AP30 through the dedicated data radio bearer a.
After receiving the first sharing request, the AP1 finds that the target cell belongs to a cell governed by the AP2, and then the AP1 sends a second sharing request to the AP2, where the second sharing request may indicate a type of shared information, a size of allowed shared information, or a maximum rate, or information such as object information or an area that needs to receive shared information. If the AP2 allows the request, the AP1 transmits the shared information to the AP2 through an interface with the AP2, and the AP2 may implement transmission of the shared information in a corresponding area. If the AP2 does not allow sharing, the AP1 needs to return information that cannot be shared in a partial area to the UE32 expecting to share information, and whether to continue sharing is determined by the UE. The UE may terminate the sharing or may only implement the sharing in the area where the sharing is allowed.
In a non-limiting embodiment of the present invention, in a scenario where multiple APs implement information sharing, when an AP1 receives a sharing request from a UE expecting to share information, and a sharing area or a sharing object, since the sharing area includes multiple cells, in order to make shared information sent by different cells complete, the UE expecting to share information sets a PDCP sequence number of a data packet. The UE expecting to share information may continuously determine the PDCP sequence number of the data packet of the shared information at preset intervals from a preset start number. For example, starting from 0, 1,2,3, in turn, the sequence number is of a fixed length, such as 18 bits.
After receiving the shared information, the AP1 maintains the PDCP sequence number of the data packet set by the UE when forwarding to other APs. If other APs find that the PDCP sequence number is not complete, the other APs may indicate the missing sequence number to AP1, and if there is a data packet corresponding to the sequence number, AP1 may directly provide the data packet; if not, the AP1 may indicate the missing data packet to the UE expecting to share information, and the UE may retransmit the data packet.
Further, the UE expecting to share information may perform handover in the AP1, and during the handover, the UE needs to maintain the continuity of the PDCP sequence number of the packet of the shared information.
In a non-limiting embodiment of the present invention, please refer to fig. 4, wherein fig. 4 shows another information sharing method. The information sharing method in the embodiment of the invention can be used for the user equipment side, and particularly can be used for the user equipment side needing to share information.
Specifically, the information sharing method may include the following steps:
step S401: receiving a notification message from an access point device to determine that the access point device allows sharing;
step S402: and sending sharing information to be shared to the access point equipment so that the access point equipment broadcasts a new notification message, wherein the new notification message comprises an RNTI (radio network temporary identifier) corresponding to the sharing information and a search space, so that user equipment receiving the sharing information descrambles a downlink control signaling by using the RNTI in the search space to obtain the position of a time-frequency resource bearing the sharing information.
In a specific implementation, the AP may indicate whether sharing is allowed, and a type and a size of information allowed to be shared in the notification message. The UE may receive the notification message broadcasted by the AP, and compare the type and size of the shared information expected to be shared by the UE with the type and size of the information allowed to be shared in the notification message, so as to determine whether the AP allows sharing the shared information.
Under the condition that the AP allows sharing, the UE may send a first sharing request to the AP, for requesting to share the shared information. Further, the first sharing request includes a target range of sharing.
In response to the first sharing request, the AP allocates a dedicated data radio bearer to the UE, and the UE transmits the shared information by using the dedicated data radio bearer.
Further, when the UE to share information sets the PDCP sequence number of the data packet, the UE starts to set from 0, and may use a fixed length to continue the PDCP sequence numbers. The UE may perform handover in the AP, and during the handover, the UE also needs to maintain the continuous PDCP sequence number of the data packets
For a specific implementation of a series of processes of configuring the notification message, broadcasting the notification message, sending the shared information, and the like, reference may be made to the foregoing embodiments, and details are not described herein.
In a non-limiting embodiment of the present invention, please refer to fig. 5, wherein fig. 5 illustrates another information sharing method. The information sharing method in the embodiment of the invention can be used for the user equipment side, and particularly can be used for the user equipment side which needs to receive the shared information.
Specifically, the information sharing method may include the following steps:
step S501: receiving a notification message, wherein the notification message comprises an RNTI (radio network temporary identifier) corresponding to the shared information and a search space;
step S502: descrambling the downlink control signaling by using the RNTI in the search space to obtain the position of the time-frequency resource bearing the shared information;
step S503: and receiving the shared information at the position of the time-frequency resource bearing the shared information.
In this embodiment, the UE may receive the notification message broadcast by the AP. The notification message may indicate an identity of the UE that needs to receive the shared information, an identity of a cell in which the UE that needs to receive the shared information is located, or the like. And the UE compares the identifier of the UE or the identifier of the cell with the corresponding identifier in the notification message to determine whether the shared information needs to be received.
And if so, the UE descrambles the downlink control signaling by using the RNTI in a search space indicated by the notification message. And receiving the shared information at the position of the time-frequency resource bearing the shared information. Otherwise, the UE does not need to descramble the downlink control signaling by using the RNTI in the search space.
In a non-limiting embodiment of the present invention, referring to fig. 6, AP602 and AP603 are deployed in two departments of the same company, UE601 accesses AP602, and UE604 accesses AP603. The UE601 wants to share information to the UE604.
The information sharing method shown in fig. 6 may include the following steps:
step S601: the AP602 broadcasts a notification message. The notification message indicates whether the AP602 allows sharing and the type of information allowed to be shared, the size of information allowed to be shared, the maximum rate, etc.
Step S602: the UE601 receives the broadcast message and determines whether to allow sharing information.
Step S603: UE601 sends shared information to AP 602.
Step S604: the AP602 determines that the target cell indicated by the target range or the cell in which the target object is located does not belong to the cell governed by the current AP.
Step S605: AP602 forwards the shared information to AP603.
Step S606: the AP603 broadcasts a notification message. The notification message indicates an RNTI of the shared information, a search space, a name, a type, a size, sharer information, or object information that needs to receive the shared information.
Step S607: the UE604 determines whether it needs to receive shared information.
Step S608: the AP603 transmits the shared information to the UE604.
Thus, information sharing between the UE601 and the UE604 is achieved.
Referring to fig. 7, fig. 7 shows an information sharing apparatus. The information sharing apparatus 70 may include:
a shared information obtaining module 701, configured to obtain shared information to be shared from at least one user equipment;
a broadcasting module 702, configured to broadcast a notification message, where the notification message includes an RNTI corresponding to the shared information, so that a user equipment receiving the shared information uses the RNTI to descramble a downlink control signaling, and obtains a location of a time-frequency resource carrying the shared information;
a shared information transmission module 703, configured to transmit the shared information at a location of a time-frequency resource carrying the shared information.
In a specific implementation, the information sharing device 70 may correspond to a Chip having an information sharing function in a network device, such as a System-On-a-Chip (SOC), a baseband Chip, or the like; or the network equipment comprises a chip module with an information sharing function; or the chip module with the information sharing function chip, or the network equipment. The network device may be an access point device.
Referring to fig. 8, fig. 8 shows an information sharing apparatus. The information sharing apparatus 80 may include:
a notification message receiving module 801, configured to receive a notification message from an access point device to determine that the access point device allows sharing;
a shared information sending module 802, configured to send shared information to be shared to the access point device, so that the access point device broadcasts a new notification message, where the new notification message includes an RNTI corresponding to the shared information and a search space, so that a user equipment receiving the shared information uses the RNTI to descramble a downlink control signaling in the search space, and obtains a position of a time-frequency resource bearing the shared information.
As shown in fig. 9, the information sharing apparatus 90 may include:
a notification message receiving module 901, configured to receive a notification message, where the notification message includes an RNTI and a search space corresponding to shared information;
a resource obtaining module 902, configured to descramble the downlink control signaling using the RNTI in the search space, and obtain a location of a time-frequency resource that carries the shared information;
a shared information receiving module 903, configured to receive the shared information at a location of a time-frequency resource that carries the shared information.
In a specific implementation, the information sharing device 80 and the information sharing device 90 may correspond to a Chip having an information sharing function in a network device, such as a System-On-a-Chip (SOC), a baseband Chip, and the like; or the network equipment comprises a chip module with an information sharing function; or the chip module with the information sharing function chip, or the network equipment. The network device may be a user equipment.
More contents of the working principle and the working mode of the information sharing apparatus may refer to the related descriptions in fig. 1 to fig. 6, which are not described again here.
Each module/unit included in each apparatus and product described in the above embodiments may be a software module/unit, or may also be a hardware module/unit, or may also be a part of a software module/unit and a part of a hardware module/unit. For example, for each device or product applied to or integrated into a chip, each module/unit included in the device or product may be implemented by hardware such as a circuit, or at least a part of the module/unit may be implemented by a software program running on a processor integrated within the chip, and the rest (if any) part of the module/unit may be implemented by hardware such as a circuit; for each device and product applied to or integrated with the chip module, each module/unit included in the device and product may be implemented by hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least part of the modules/units may be implemented by a software program running on a processor integrated inside the chip module, and the rest (if any) part of the modules/units may be implemented by hardware such as a circuit; for each device and product applied to or integrated in the terminal, each module/unit included in the device and product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program running on a processor integrated in the terminal, and the rest (if any) part of the modules/units may be implemented by using hardware such as a circuit.
The embodiment of the invention also discloses a storage medium which is a computer readable storage medium and is stored with a computer program, and the steps of the information sharing method in the embodiment can be executed when the computer program runs. The storage medium may include ROM, RAM, magnetic or optical disks, etc. The storage medium may further include a non-volatile (non-volatile) memory or a non-transient (non-transient) memory, etc.
The embodiment of the invention also discloses access point equipment which can comprise a memory and a processor, wherein the memory stores computer programs which can run on the processor. The processor, when running the computer program, may perform the steps of the information sharing method in the foregoing embodiments.
The embodiment of the invention also discloses user equipment which can comprise a memory and a processor, wherein the memory is stored with a computer program which can run on the processor. The processor may execute the steps of the information sharing method in the foregoing embodiments when running the computer program. The user equipment includes but is not limited to a mobile phone, a computer, a tablet computer and other terminal equipment.
The technical solution of the present invention is also applicable to different network architectures, including but not limited to relay network architecture, dual link architecture, vehicle-to-event architecture, and the like.
The network on the network side in the embodiment of the present invention refers to a communication network providing communication services for a terminal, and includes a base station of a radio access network, a base station controller of the radio access network, and a device on the core network side.
A terminal in this embodiment may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station (mobile station, MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device (terminal equipment), a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a Public Land Mobile Network (PLMN) for future evolution, and the like, which is not limited in the embodiment of the present application.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein indicates that the former and latter associated objects are in an "or" relationship.
The "plurality" appearing in the embodiments of the present application means two or more.
The descriptions of the first, second, etc. appearing in the embodiments of the present application are only for illustrating and differentiating the objects, and do not represent the order or the particular limitation of the number of the devices in the embodiments of the present application, and do not constitute any limitation to the embodiments of the present application.
The term "connect" in the embodiments of the present application refers to various connection manners, such as direct connection or indirect connection, to implement communication between devices, which is not limited in this embodiment of the present application.
It should be understood that, in the embodiment of the present application, the processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The above-described embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. The procedures or functions described in accordance with the embodiments of the present application are produced in whole or in part when the computer instructions or the computer program are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus and system may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative; for example, the division of the cell is only a logic function division, and there may be another division manner in actual implementation; for example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (23)

1. An information sharing method, comprising:
obtaining shared information to be shared from at least one user equipment;
broadcasting a notification message, wherein the notification message comprises an RNTI corresponding to the shared information, so that user equipment receiving the shared information descrambles the downlink control signaling by using the RNTI to obtain the position of a time-frequency resource bearing the shared information;
and transmitting the shared information at the position of the time-frequency resource bearing the shared information.
2. The information sharing method according to claim 1, wherein the notification message further includes a search space, so that a user equipment receiving the shared information descrambles downlink control signaling with the RNTI in the search space.
3. The information sharing method according to claim 1, wherein the broadcasting the notification message further comprises:
and configuring a search space for receiving the notification message and receiving the RNTI in a system message, and sending out the search space and the RNTI.
4. The information sharing method according to claim 1, wherein before the obtaining of the shared information to be shared from at least one user equipment, the method further comprises:
receiving a first sharing request from the at least one user equipment, wherein the first sharing request is used for requesting to share the shared information, and the first sharing request comprises a sharing target range.
5. The information sharing method according to claim 4, wherein the target range includes one or more of: target area, target object and target frequency.
6. The information sharing method according to claim 4, wherein the broadcasting the notification message comprises:
broadcasting the notification message at a target cell or a target frequency indicated by the target range.
7. The information sharing method according to claim 4, wherein the broadcasting the notification message comprises:
if the target cell indicated by the target range or the cell where the target object is located does not belong to the cell governed by the current access point equipment, sending a second sharing request to the target access point equipment to which the target cell belongs;
and responding to the feedback permission of the target access point equipment to share, forwarding the sharing information to the target access point so as to enable the target access point equipment to broadcast the notification message and transmit the sharing information.
8. The information sharing method according to claim 7, wherein the second sharing request includes one or more of: attribute information of the shared information and a target range of the shared information to be shared.
9. The information sharing method according to claim 7, wherein the data packets of the shared information have consecutive sequence numbers, the method further comprising:
receiving sequence number feedback information sent by the target access point equipment, wherein the sequence number feedback information is used for indicating a sequence number of a data packet lacking in the target access point equipment;
if the data packet pointed by the sequence number is locally provided, the data packet is directly forwarded to the target access point device, or if the data packet pointed by the sequence number is not locally provided, the data packet is requested from the at least one user equipment and forwarded to the target access point device.
10. The information sharing method according to claim 1, wherein the notification message further includes attribute information of the shared information, whether the current access point device allows sharing, a type of the shared information allowed by the current access point device, a size of the shared information allowed, and/or a maximum transmission rate of the shared information allowed.
11. The information sharing method according to claim 8 or 10, wherein the attribute information of the shared information includes one or more of: the type, name, size, sharer information and target object information of the shared information.
12. An information sharing method, comprising:
receiving a notification message from an access point device to determine that the access point device allows sharing;
and sending shared information to be shared to the access point equipment so that the access point equipment broadcasts a new notification message, wherein the new notification message comprises the RNTI corresponding to the shared information, so that the user equipment receiving the shared information utilizes the RNTI to descramble the downlink control signaling to obtain the position of the time-frequency resource bearing the shared information.
13. The information sharing method according to claim 12, wherein before sending the shared information to be shared to the access point device, the method further comprises:
sending a first sharing request to the access point device, where the first sharing request is used to request to share the shared information, and the first sharing request includes a shared target range.
14. The information sharing method according to claim 12, wherein the sending the shared information to be shared to the access point device includes:
and sending the shared information by using the special data radio bearer allocated by the access point equipment.
15. The information sharing method according to claim 12, wherein the sending the shared information to be shared to the access point device includes:
continuously determining the PDCP sequence number of the data packet of the shared information from a preset starting number according to a preset interval;
and sending out the data packet of the shared information.
16. The information sharing method according to claim 15, further comprising:
and when the access point equipment performs switching, the PDCP sequence number of the data packet is maintained to be continuous before and after the switching.
17. An information sharing method, comprising:
receiving a notification message, wherein the notification message comprises an RNTI corresponding to the shared information;
descrambling the downlink control signaling by using the RNTI to obtain the position of the time frequency resource bearing the shared information;
and receiving the shared information at the position of the time-frequency resource bearing the shared information.
18. An information sharing apparatus, comprising:
the sharing information acquisition module is used for acquiring sharing information to be shared from at least one user equipment;
a broadcast module, configured to broadcast a notification message, where the notification message includes an RNTI corresponding to the shared information, so that a user equipment receiving the shared information uses the RNTI to descramble a downlink control signaling, and obtains a position of a time-frequency resource bearing the shared information;
and the shared information transmission module is used for transmitting the shared information at the position of the time-frequency resource bearing the shared information.
19. An information sharing apparatus, comprising:
a notification message receiving module, configured to receive a notification message from an access point device to determine that the access point device allows sharing;
and the shared information sending module is used for sending shared information to be shared to the access point equipment so that the access point equipment can broadcast a new notification message, wherein the new notification message comprises an RNTI (radio network temporary identifier) corresponding to the shared information, so that user equipment receiving the shared information can descramble the downlink control signaling by using the RNTI to obtain the position of a time-frequency resource bearing the shared information.
20. An information sharing apparatus, comprising:
a notification message receiving module, configured to receive a notification message, where the notification message includes an RNTI corresponding to the shared information;
a resource obtaining module, configured to descramble the downlink control signaling by using the RNTI, and obtain a position of a time-frequency resource bearing the shared information;
and the shared information receiving module is used for receiving the shared information at the position of the time-frequency resource bearing the shared information.
21. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the information sharing method according to any one of claims 1 to 17.
22. An access point device comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor executes the computer program to perform the information sharing method according to any one of claims 1 to 11.
23. A user device comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor executes the computer program to perform the information sharing method according to any one of claims 12 to 17.
CN202110496338.0A 2021-05-07 2021-05-07 Information sharing method and device, access point equipment and user equipment Pending CN115314842A (en)

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