CN102769907A - Method, device and system for hyper frame number synchronization - Google Patents
Method, device and system for hyper frame number synchronization Download PDFInfo
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- CN102769907A CN102769907A CN2012102276089A CN201210227608A CN102769907A CN 102769907 A CN102769907 A CN 102769907A CN 2012102276089 A CN2012102276089 A CN 2012102276089A CN 201210227608 A CN201210227608 A CN 201210227608A CN 102769907 A CN102769907 A CN 102769907A
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Abstract
The invention discloses a method for hyper frame number synchronization. The method comprises the following steps that a receiving end detects a data packet analysis error, and transmits a hyper frame number (HFN) synchronous request message to a transmitting end; after receiving the HFN synchronous request message, the transmitting end transmits the synchronous response message carried with the locally stored HFN to the receiving end; and after receiving the synchronous request message, the receiving end uses the received HFN to update the locally stored HFN. According to the method, the HFN can be synchronized in time by the transmitting end and the receiving end when the HFNs are inconsistent, the phenomenon that flow is interrupted and cannot be recovered due to the different HFNs stored in the transmitting end and the receiving end is avoided. The invention also discloses a device for hyper frame number synchronization, and a system for hyper frame number synchronization.
Description
Technical field
The present invention relates to data communication technology field, method, Apparatus and system that in particular a kind of Hyper Frame Number is synchronous.
Background technology
At LTE (Long Term Evolution; Long Term Evolution) in the system; PDCP (Packet Data Convergence Protocol, PDCP) layer is the numeral number COUNT of one 32 of each allocation of packets, is used for integrity protection and encryption and decryption.As shown in Figure 1, COUNT is made up of the HFN (Hyper Frame Number, Hyper Frame Number) of a high position and PDCP SN (Sequence Number, sequence number) two parts of low level, and wherein, the length of PDCP SN can be 5bit, 7bit or 12bit by upper-layer configured.
Communicating pair was preserved HFN before data transmit; Transmitting terminal utilizes COUNT value and other parameter to encrypt, and in data transmission procedure, PDCP SN can constantly increase by 1; If PDCP SN reaches maximum and counter-rotating has taken place, transmitting terminal can add 1 with the HFN that self preserves.PDCP SN value and packet send to receiving terminal together, after receiving terminal is received packet, from packet, solve PDCP SN and the HFN that self stores together, be combined into one 32 COUNT value, the packet of receiving is deciphered.
In the available data transmission course, there is inconsistent possibility in the HFN that transmitting terminal and receiving terminal are preserved respectively, such as, owing to switch or bad channel quality; Packet is blocked at the MAC layer, and receiving terminal does not receive packet, if counter-rotating has taken place the PDCP SN of transmitting terminal and HFN increases by 1; But receiving terminal is not owing to receive packet, and therefore, the PDCP SN of receiving terminal can not reverse; HFN can not increase by 1 yet, and at this moment, the HFN value that transmitting terminal and receiving terminal are preserved is inequality; Cause receiving terminal after receiving packet, the different mistakes that unpack of HFN value when the HFN value of preserving owing to self is used to encrypt with transmitting terminal, flow interrupt and can't recovering.
Therefore, cause data traffic to interrupt and can't recover owing to the HFN value of preserving is inconsistent, need the method for synchronous of a kind of HFN for fear of transmitting terminal and receiving terminal.
Summary of the invention
Technical problem to be solved by this invention provides the synchronous method of a kind of Hyper Frame Number, Apparatus and system, can avoid causing flow interrupt owing to the Hyper Frame Number of transmitting terminal and receiving terminal preservation is inequality and can't recovering.
In order to solve the problems of the technologies described above, the invention provides the synchronous method of a kind of Hyper Frame Number, be applied on the receiving terminal, this method comprises:
Detect the packet parse error, send Hyper Frame Number HFN synchronization request message to transmitting terminal;
The synchronous response message of carrying HFN that receiving end/sending end sends is upgraded the local HFN that preserves with the HFN that receives.
Further, detect the packet parse error, comprising: utilize local HFN value of preserving correctly to decipher packet.
Further, after transmitting terminal sends the HFN synchronization request message, also start timer; Still do not receive the synchronous response message of transmitting terminal during like said timer expiry, then retransmit said HFN synchronization request message to said transmitting terminal; As the number of times of retransmitting said HFN synchronization request message reaches maximum number of times of transmission or before said timer expiry, receives the synchronous response message that transmitting terminal sends, and then stops to send said HFN synchronization request message to transmitting terminal; As receiving the synchronous response message of carrying HFN that transmitting terminal sends before the said timer expiry, then upgrade the local HFN that preserves with the HFN that receives.
Further, when said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
In order to solve the problems of the technologies described above, the present invention also provides a kind of Hyper Frame Number synchronous method, is applied on the transmitting terminal, and this method comprises:
Receive the Hyper Frame Number HFN synchronization request message that receiving terminal sends;
The HFN that this locality is preserved is carried at and sends to receiving terminal in the synchronous response message.
Further, when said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
In order to solve the problems of the technologies described above, the invention provides the synchronous method of a kind of Hyper Frame Number, this method comprises:
Receiving terminal detects the packet parse error, sends Hyper Frame Number HFN synchronization request message to transmitting terminal;
After transmitting terminal received said HFN synchronization request message, the HFN that this locality is preserved was carried at and sends to receiving terminal in the synchronous response message;
After receiving terminal receives said synchronous response message, upgrade the local HFN that preserves with the HFN that receives.
Further, receiving terminal detects the packet parse error, comprising: the local HFN value of preserving of receiving terminal utilization can't correctly be deciphered packet.
Further, when said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
Further, said receiving terminal also starts timer after transmitting terminal sends the HFN synchronization request message; Said receiving terminal is not still received the synchronous response message of transmitting terminal during like said timer expiry, then retransmits said HFN synchronization request message to said transmitting terminal; As the number of times of retransmitting said HFN synchronization request message reaches maximum number of times of transmission or before said timer expiry, receives the synchronous response message that transmitting terminal sends, and then stops to send said HFN synchronization request message to transmitting terminal; Receive the synchronous response message of carrying HFN that transmitting terminal sends like said receiving terminal before the said timer expiry, then upgrade the local HFN that preserves with the HFN that receives.
In order to solve the problems of the technologies described above, the present invention also provides a kind of Hyper Frame Number synchronous method, and this method comprises:
Base station judges goes out the transmission objective requirement of the discontented foot of channel quality line data, and the Hyper Frame Number HFN that this locality is preserved is carried in the HFN synchronization message and sends to user terminal;
Said user terminal returns confirmation of synchronization message to said base station after receiving said HFN synchronization message, and upgrades the local HFN that preserves with the HFN that receives.
Further, whether the base station judges channel quality satisfies the transmission objective requirement of downlink data, comprising: the base station judges according to the measurement parameter report of user terminal to send up whether channel quality satisfies the transmission objective requirement of downlink data.
In order to solve the problems of the technologies described above, the present invention also provides a kind of Hyper Frame Number synchronous device, is applied on the receiving terminal, and this device comprises:
Sending module is used to detect the packet parse error, sends Hyper Frame Number HFN synchronization request message to transmitting terminal;
Receiver module is used for the synchronous response message of carrying HFN that receiving end/sending end sends, and upgrades the local HFN that preserves with the HFN that receives.
Further, detect the packet parse error, comprising: utilize local HFN value of preserving correctly to decipher packet.
Further, when said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
Further, sending module is used for after transmitting terminal sends the HFN synchronization request message, also starting timer; Still do not receive the synchronous response message of transmitting terminal during like said timer expiry, then retransmit said HFN synchronization request message to said transmitting terminal; As the number of times of retransmitting said HFN synchronization request message reaches maximum number of times of transmission or before said timer expiry, receives the synchronous response message that transmitting terminal sends, and then stops to send said HFN synchronization request message to transmitting terminal;
Receiver module is used for then upgrading the local HFN that preserves with the HFN that receives as receiving the synchronous response message of carrying HFN that transmitting terminal sends before the said timer expiry.
In order to solve the problems of the technologies described above, the present invention also provides a kind of Hyper Frame Number synchronous device, is applied on the transmitting terminal, and this device comprises:
Receiver module is used to receive the Hyper Frame Number HFN synchronization request message that receiving terminal sends;
Sending module is used for that the HFN that preserve this locality is carried at synchronous response message and sends to receiving terminal.
Further, when said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
In order to solve the problems of the technologies described above, the present invention also provides a kind of Hyper Frame Number synchronous system, and this system comprises:
The synchronization request module is used for receiving terminal and detects the packet parse error, sends Hyper Frame Number HFN synchronization request message to transmitting terminal;
The sync response module, after being used for transmitting terminal and receiving said HFN synchronization request message, the HFN that this locality is preserved is carried at and sends to receiving terminal in the synchronous response message;
The HFN update module after being used for receiving terminal and receiving said synchronous response message, is upgraded the local HFN that preserves with the HFN that receives.
Further, receiving terminal detects the packet parse error, comprising: the local HFN value of preserving of receiving terminal utilization can't correctly be deciphered packet.
Further, when said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
Further, the synchronization request module also is used for receiving terminal after transmitting terminal sends the HFN synchronization request message, also starts timer; Said receiving terminal is not still received the synchronous response message of transmitting terminal during like said timer expiry, then retransmits said HFN synchronization request message to said transmitting terminal; As the number of times of retransmitting said HFN synchronization request message reaches maximum number of retransmissions or before said timer expiry, receives the synchronous response message that transmitting terminal sends, and then stops to send said HFN synchronization request message to transmitting terminal;
The HFN update module is used for receiving the synchronous response message of carrying HFN that transmitting terminal sends like receiving terminal before the said timer expiry, then upgrades the local HFN that preserves with the HFN that receives.
In order to solve the problems of the technologies described above, the present invention also provides a kind of Hyper Frame Number synchronous system, and this system comprises:
The synchronization message sending module is used for the transmission objective requirement that base station judges goes out the discontented foot of channel quality line data, and the Hyper Frame Number HFN that this locality is preserved is carried in the HFN synchronization message and sends to user terminal;
The HFN update module after being used for said user terminal and receiving said HFN synchronization message, is returned confirmation of synchronization message to said base station, and upgrades the local HFN that preserves with the HFN that receives.
Further, whether the base station judges channel quality satisfies the transmission objective requirement of downlink data, comprising: the base station judges according to the measurement parameter report of user terminal to send up whether channel quality satisfies the transmission objective requirement of downlink data.
Compared with prior art; Method, Apparatus and system that a kind of Hyper Frame Number provided by the invention is synchronous detect the packet parse error through receiving terminal, send Hyper Frame Number HFN synchronization request message to transmitting terminal; After transmitting terminal receives said HFN synchronization request message; The HFN that this locality is preserved is carried at and sends to receiving terminal in the synchronous response message, after receiving terminal receives said synchronous response message, upgrades the local HFN that preserves with the HFN that receives; Can make transmitting terminal and receiving terminal the in time synchronous HFN in the inconsistent back of HFN occur, avoid causing flow interrupt owing to the Hyper Frame Number of transmitting terminal and receiving terminal preservation is inequality and can't recovering.
Description of drawings
Fig. 1 is the composition sketch map of COUNT.
Fig. 2 is the synchronous method flow diagram (receiving terminal) of a kind of Hyper Frame Number of the embodiment of the invention.
Fig. 3 is the synchronous method flow diagram (transmitting terminal) of a kind of Hyper Frame Number of the embodiment of the invention.
Fig. 4 is the synchronous method flow diagram of a kind of Hyper Frame Number of the embodiment of the invention.
Fig. 5 is the synchronous method flow diagram of another kind of Hyper Frame Number of the embodiment of the invention.
Fig. 6 is the synchronous apparatus structure sketch map (receiving terminal) of a kind of Hyper Frame Number of the embodiment of the invention.
Fig. 7 is the synchronous apparatus structure sketch map (transmitting terminal) of a kind of Hyper Frame Number of the embodiment of the invention.
Fig. 8 is the synchronous system configuration sketch map of a kind of Hyper Frame Number of the embodiment of the invention.
Fig. 9 is the synchronous system configuration sketch map of the another kind of Hyper Frame Number of the embodiment of the invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
As shown in Figure 2, the embodiment of the invention provides a kind of Hyper Frame Number synchronous method, is applied on the receiving terminal, and this method comprises:
S10 detects the packet parse error, sends Hyper Frame Number HFN synchronization request message to transmitting terminal;
S20, the synchronous response message of carrying HFN that receiving end/sending end sends is upgraded the local HFN that preserves with the HFN that receives.
Step S10 further comprises following characteristics:
Wherein, detect the packet parse error, comprising: utilize local HFN value of preserving correctly to decipher packet;
Wherein, when said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station;
Wherein, after transmitting terminal sends the HFN synchronization request message, also start timer;
Still do not receive the synchronous response message of transmitting terminal during like said timer expiry, then retransmit said HFN synchronization request message to said transmitting terminal; As the number of times of retransmitting said HFN synchronization request message reaches maximum number of times of transmission or before said timer expiry, receives the synchronous response message that transmitting terminal sends, and then stops to send said HFN synchronization request message to transmitting terminal; Wherein, the timing length of said timer can be set to 1ms.
Step S20 further comprises following characteristics:
The synchronous response message of carrying HFN that receiving end/sending end sends; Upgrade the local HFN that preserves with the HFN that receives; Comprise:, then upgrade the local HFN that preserves with the HFN that receives as receiving the synchronous response message of carrying HFN that transmitting terminal sends before the said timer expiry.
As shown in Figure 3, the embodiment of the invention provides a kind of Hyper Frame Number synchronous method, is applied on the transmitting terminal, and this method comprises:
S10 receives the Hyper Frame Number HFN synchronization request message that receiving terminal sends;
S20, the HFN that this locality is preserved is carried at and sends to receiving terminal in the synchronous response message.
Step S10 further comprises following characteristics:
Wherein, when said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
Step S20 further comprises following characteristics:
Wherein, When said transmitting terminal is that base station and said receiving terminal are when being user terminal; The HFN that this locality is preserved is carried at and sends to receiving terminal in the synchronous response message; Comprise: whether the said user terminal of verification is user terminal resident in the sub-district of this base station, is that the HFN that then this locality preserved is carried at and sends to said user terminal in the synchronous response message;
Wherein, When said transmitting terminal is that user terminal and said receiving terminal are when being the base station; The HFN that this locality is preserved is carried at and sends to receiving terminal in the synchronous response message; Comprise: the said base station of verification whether be self the resident base station that the sub-district belonged to, be that the HFN that then this locality preserved is carried at and sends to said base station in the synchronous response message.
As shown in Figure 4, the embodiment of the invention provides a kind of Hyper Frame Number synchronous method, and this method comprises:
S10, receiving terminal detect the packet parse error, send Hyper Frame Number HFN synchronization request message to transmitting terminal;
After S20, transmitting terminal received said HFN synchronization request message, the HFN that this locality is preserved was carried at and sends to receiving terminal in the synchronous response message;
After S30, receiving terminal receive said synchronous response message, upgrade the local HFN that preserves with the HFN that receives.
Step S10 further comprises following characteristics:
Wherein, receiving terminal detects the packet parse error, comprising: the local HFN value of preserving of receiving terminal utilization can't correctly be deciphered packet;
Wherein, when said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station;
Step S20 further comprises following characteristics:
Wherein, receiving terminal also starts timer after transmitting terminal sends the HFN synchronization request message;
Receiving terminal is not still received the synchronous response message of transmitting terminal during like said timer expiry, then retransmits said HFN synchronization request message to said transmitting terminal; As the number of times of retransmitting said HFN synchronization request message reaches maximum number of retransmissions or before said timer expiry, receives the synchronous response message that transmitting terminal sends, and then stops to send said HFN synchronization request message to transmitting terminal;
Receive the synchronous response message of carrying HFN that transmitting terminal sends like said receiving terminal before the said timer expiry, then upgrade the local HFN that preserves with the HFN that receives.
As shown in Figure 5, the embodiment of the invention provides a kind of Hyper Frame Number synchronous method, and this method comprises:
S10, base station judges goes out the transmission objective requirement of the discontented foot of channel quality line data, and the Hyper Frame Number HFN that this locality is preserved is carried in the HFN synchronization message and sends to user terminal;
S20, said user terminal return confirmation of synchronization message to said base station after receiving said HFN synchronization message, and upgrade the local HFN that preserves with the HFN that receives.
Step S10 further comprises following characteristics:
Whether the base station judges channel quality satisfies the transmission objective requirement of downlink data, comprising: the base station judges according to the measurement parameter report of user terminal to send up whether channel quality satisfies the transmission objective requirement of downlink data.
As shown in Figure 6, the embodiment of the invention provides a kind of Hyper Frame Number synchronous device, is applied on the receiving terminal, and this device comprises:
Sending module is used to detect the packet parse error, sends Hyper Frame Number HFN synchronization request message to transmitting terminal;
Receiver module is used for the synchronous response message of carrying HFN that receiving end/sending end sends, and upgrades the local HFN that preserves with the HFN that receives.
Wherein, detect the packet parse error, comprising: utilize local HFN value of preserving correctly to decipher packet;
Wherein, when said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station;
Wherein, sending module is used for after transmitting terminal sends the HFN synchronization request message, also starting timer; Still do not receive the synchronous response message of transmitting terminal during like said timer expiry, then retransmit said HFN synchronization request message to said transmitting terminal; As the number of times of retransmitting said HFN synchronization request message reaches maximum number of times of transmission or before said timer expiry, receives the synchronous response message that transmitting terminal sends, and then stops to send said HFN synchronization request message to transmitting terminal;
Receiver module is used for then upgrading the local HFN that preserves with the HFN that receives as receiving the synchronous response message of carrying HFN that transmitting terminal sends before the said timer expiry.
As shown in Figure 7, the embodiment of the invention provides a kind of Hyper Frame Number synchronous device, is applied on the transmitting terminal, and this device comprises:
Receiver module is used to receive the Hyper Frame Number HFN synchronization request message that receiving terminal sends;
Sending module is used for that the HFN that preserve this locality is carried at synchronous response message and sends to receiving terminal.
Wherein, when said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
As shown in Figure 8, the embodiment of the invention provides a kind of Hyper Frame Number synchronous system, and this system comprises:
The synchronization request module is used for receiving terminal and detects the packet parse error, sends Hyper Frame Number HFN synchronization request message to transmitting terminal;
The sync response module, after being used for transmitting terminal and receiving said HFN synchronization request message, the HFN that this locality is preserved is carried at and sends to receiving terminal in the synchronous response message;
The HFN update module after being used for receiving terminal and receiving said synchronous response message, is upgraded the local HFN that preserves with the HFN that receives.
Wherein, receiving terminal detects the packet parse error, comprising: the local HFN value of preserving of receiving terminal utilization can't correctly be deciphered packet;
Wherein, when said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station;
Wherein, the synchronization request module also is used for receiving terminal after transmitting terminal sends the HFN synchronization request message, also starts timer; Said receiving terminal is not still received the synchronous response message of transmitting terminal during like said timer expiry, then retransmits said HFN synchronization request message to said transmitting terminal; As the number of times of retransmitting said HFN synchronization request message reaches maximum number of retransmissions or before said timer expiry, receives the synchronous response message that transmitting terminal sends, and then stops to send said HFN synchronization request message to transmitting terminal;
The HFN update module is used for receiving the synchronous response message of carrying HFN that transmitting terminal sends like receiving terminal before the said timer expiry, then upgrades the local HFN that preserves with the HFN that receives.
As shown in Figure 9, the embodiment of the invention provides a kind of Hyper Frame Number synchronous system, and this system comprises:
The synchronization message sending module is used for the transmission objective requirement that base station judges goes out the discontented foot of channel quality line data, and the Hyper Frame Number HFN that this locality is preserved is carried in the HFN synchronization message and sends to user terminal;
The HFN update module after being used for said user terminal and receiving said HFN synchronization message, is returned confirmation of synchronization message to said base station, and upgrades the local HFN that preserves with the HFN that receives.
Wherein, whether the base station judges channel quality satisfies the transmission objective requirement of downlink data, comprising: the base station judges according to the measurement parameter report of user terminal to send up whether channel quality satisfies the transmission objective requirement of downlink data.
Method, Apparatus and system that a kind of Hyper Frame Number that the foregoing description provides is synchronous; Detect the packet parse error through receiving terminal; Send Hyper Frame Number HFN synchronization request message to transmitting terminal, after transmitting terminal received said HFN synchronization request message, the HFN that this locality is preserved was carried at and sends to receiving terminal in the synchronous response message; After receiving terminal receives said synchronous response message; With the HFN that preserve the HFN renewal this locality that receives, can make transmitting terminal and receiving terminal the in time synchronous HFN in the inconsistent back of HFN occur, avoid causing flow interrupt owing to the Hyper Frame Number of transmitting terminal and receiving terminal preservation is inequality and can't recovering.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said program can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize, correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Need to prove; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (24)
1. the method that Hyper Frame Number is synchronous is applied on the receiving terminal, and this method comprises:
Detect the packet parse error, send Hyper Frame Number HFN synchronization request message to transmitting terminal;
The synchronous response message of carrying HFN that receiving end/sending end sends is upgraded the local HFN that preserves with the HFN that receives.
2. the method for claim 1 is characterized in that:
Detect the packet parse error, comprising: utilize local HFN value of preserving correctly to decipher packet.
3. according to claim 1 or claim 2 method is characterized in that:
After transmitting terminal sends the HFN synchronization request message, also start timer;
Still do not receive the synchronous response message of transmitting terminal during like said timer expiry, then retransmit said HFN synchronization request message to said transmitting terminal; As the number of times of retransmitting said HFN synchronization request message reaches maximum number of times of transmission or before said timer expiry, receives the synchronous response message that transmitting terminal sends, and then stops to send said HFN synchronization request message to transmitting terminal;
As receiving the synchronous response message of carrying HFN that transmitting terminal sends before the said timer expiry, then upgrade the local HFN that preserves with the HFN that receives.
4. according to claim 1 or claim 2 method is characterized in that:
When said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
5. the method that Hyper Frame Number is synchronous is applied on the transmitting terminal, and this method comprises:
Receive the Hyper Frame Number HFN synchronization request message that receiving terminal sends;
The HFN that this locality is preserved is carried at and sends to receiving terminal in the synchronous response message.
6. method as claimed in claim 5 is characterized in that:
When said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
7. method that Hyper Frame Number is synchronous, this method comprises:
Receiving terminal detects the packet parse error, sends Hyper Frame Number HFN synchronization request message to transmitting terminal;
After transmitting terminal received said HFN synchronization request message, the HFN that this locality is preserved was carried at and sends to receiving terminal in the synchronous response message;
After receiving terminal receives said synchronous response message, upgrade the local HFN that preserves with the HFN that receives.
8. method as claimed in claim 7 is characterized in that:
Receiving terminal detects the packet parse error, comprising: the local HFN value of preserving of receiving terminal utilization can't correctly be deciphered packet.
9. like claim 7 or 8 described methods, it is characterized in that:
When said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
10. like claim 7 or 8 described methods, it is characterized in that:
Said receiving terminal also starts timer after transmitting terminal sends the HFN synchronization request message;
Said receiving terminal is not still received the synchronous response message of transmitting terminal during like said timer expiry, then retransmits said HFN synchronization request message to said transmitting terminal; As the number of times of retransmitting said HFN synchronization request message reaches maximum number of times of transmission or before said timer expiry, receives the synchronous response message that transmitting terminal sends, and then stops to send said HFN synchronization request message to transmitting terminal;
Receive the synchronous response message of carrying HFN that transmitting terminal sends like said receiving terminal before the said timer expiry, then upgrade the local HFN that preserves with the HFN that receives.
11. the method that Hyper Frame Number is synchronous, this method comprises:
Base station judges goes out the transmission objective requirement of the discontented foot of channel quality line data, and the Hyper Frame Number HFN that this locality is preserved is carried in the HFN synchronization message and sends to user terminal;
Said user terminal returns confirmation of synchronization message to said base station after receiving said HFN synchronization message, and upgrades the local HFN that preserves with the HFN that receives.
12. method as claimed in claim 11 is characterized in that:
Whether the base station judges channel quality satisfies the transmission objective requirement of downlink data, comprising: the base station judges according to the measurement parameter report of user terminal to send up whether channel quality satisfies the transmission objective requirement of downlink data.
13. the device that Hyper Frame Number is synchronous is applied on the receiving terminal, this device comprises:
Sending module is used to detect the packet parse error, sends Hyper Frame Number HFN synchronization request message to transmitting terminal;
Receiver module is used for the synchronous response message of carrying HFN that receiving end/sending end sends, and upgrades the local HFN that preserves with the HFN that receives.
14. device as claimed in claim 13 is characterized in that:
Detect the packet parse error, comprising: utilize local HFN value of preserving correctly to decipher packet.
15., it is characterized in that like claim 13 or 14 described devices:
When said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
16., it is characterized in that like claim 13 or 14 described devices:
Sending module is used for after transmitting terminal sends the HFN synchronization request message, also starting timer; Still do not receive the synchronous response message of transmitting terminal during like said timer expiry, then retransmit said HFN synchronization request message to said transmitting terminal; As the number of times of retransmitting said HFN synchronization request message reaches maximum number of times of transmission or before said timer expiry, receives the synchronous response message that transmitting terminal sends, and then stops to send said HFN synchronization request message to transmitting terminal;
Receiver module is used for then upgrading the local HFN that preserves with the HFN that receives as receiving the synchronous response message of carrying HFN that transmitting terminal sends before the said timer expiry.
17. the device that Hyper Frame Number is synchronous is applied on the transmitting terminal, this device comprises:
Receiver module is used to receive the Hyper Frame Number HFN synchronization request message that receiving terminal sends;
Sending module is used for that the HFN that preserve this locality is carried at synchronous response message and sends to receiving terminal.
18. device as claimed in claim 16 is characterized in that:
When said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
19. the system that Hyper Frame Number is synchronous, this system comprises:
The synchronization request module is used for receiving terminal and detects the packet parse error, sends Hyper Frame Number HFN synchronization request message to transmitting terminal;
The sync response module, after being used for transmitting terminal and receiving said HFN synchronization request message, the HFN that this locality is preserved is carried at and sends to receiving terminal in the synchronous response message;
The HFN update module after being used for receiving terminal and receiving said synchronous response message, is upgraded the local HFN that preserves with the HFN that receives.
20. system as claimed in claim 19 is characterized in that:
Receiving terminal detects the packet parse error, comprising: the local HFN value of preserving of receiving terminal utilization can't correctly be deciphered packet.
21., it is characterized in that like claim 19 or 20 described systems:
When said transmitting terminal was the base station, said receiving terminal was a user terminal; When said transmitting terminal was user terminal, said receiving terminal was the base station.
22., it is characterized in that like claim 19 or 20 described systems:
The synchronization request module also is used for receiving terminal after transmitting terminal sends the HFN synchronization request message, also starts timer; Said receiving terminal is not still received the synchronous response message of transmitting terminal during like said timer expiry, then retransmits said HFN synchronization request message to said transmitting terminal; As the number of times of retransmitting said HFN synchronization request message reaches maximum number of retransmissions or before said timer expiry, receives the synchronous response message that transmitting terminal sends, and then stops to send said HFN synchronization request message to transmitting terminal;
The HFN update module is used for receiving the synchronous response message of carrying HFN that transmitting terminal sends like receiving terminal before the said timer expiry, then upgrades the local HFN that preserves with the HFN that receives.
23. the system that Hyper Frame Number is synchronous, this system comprises:
The synchronization message sending module is used for the transmission objective requirement that base station judges goes out the discontented foot of channel quality line data, and the Hyper Frame Number HFN that this locality is preserved is carried in the HFN synchronization message and sends to user terminal;
The HFN update module after being used for said user terminal and receiving said HFN synchronization message, is returned confirmation of synchronization message to said base station, and upgrades the local HFN that preserves with the HFN that receives.
24. system as claimed in claim 23 is characterized in that:
Whether the base station judges channel quality satisfies the transmission objective requirement of downlink data, comprising: the base station judges according to the measurement parameter report of user terminal to send up whether channel quality satisfies the transmission objective requirement of downlink data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102276089A CN102769907A (en) | 2012-07-03 | 2012-07-03 | Method, device and system for hyper frame number synchronization |
Applications Claiming Priority (1)
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Cited By (6)
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| CN104168640A (en) * | 2013-05-17 | 2014-11-26 | 中兴通讯股份有限公司 | Reception end PDCP layer HFN out-off-step recovering method and device |
| WO2016054911A1 (en) * | 2014-10-08 | 2016-04-14 | 中兴通讯股份有限公司 | Detection method, sending end, receiving end and detection system |
| CN109863769A (en) * | 2016-11-30 | 2019-06-07 | 华为技术有限公司 | The method and apparatus of safe handling |
| CN111630909A (en) * | 2018-01-31 | 2020-09-04 | 高通股份有限公司 | Scheduling for time-synchronized wireless networks |
| CN111935728A (en) * | 2020-07-10 | 2020-11-13 | 展讯半导体(成都)有限公司 | Handshaking method, device, related equipment, storage medium and system |
| WO2022205230A1 (en) * | 2021-03-31 | 2022-10-06 | 北京小米移动软件有限公司 | Method and apparatus for determining hyper frame number of packet data convergence protocol entity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104168640A (en) * | 2013-05-17 | 2014-11-26 | 中兴通讯股份有限公司 | Reception end PDCP layer HFN out-off-step recovering method and device |
| WO2016054911A1 (en) * | 2014-10-08 | 2016-04-14 | 中兴通讯股份有限公司 | Detection method, sending end, receiving end and detection system |
| CN109863769A (en) * | 2016-11-30 | 2019-06-07 | 华为技术有限公司 | The method and apparatus of safe handling |
| CN111630909A (en) * | 2018-01-31 | 2020-09-04 | 高通股份有限公司 | Scheduling for time-synchronized wireless networks |
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| WO2022205230A1 (en) * | 2021-03-31 | 2022-10-06 | 北京小米移动软件有限公司 | Method and apparatus for determining hyper frame number of packet data convergence protocol entity |
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