CN103404101A - Decoding method and device - Google Patents
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- CN103404101A CN103404101A CN2012800027906A CN201280002790A CN103404101A CN 103404101 A CN103404101 A CN 103404101A CN 2012800027906 A CN2012800027906 A CN 2012800027906A CN 201280002790 A CN201280002790 A CN 201280002790A CN 103404101 A CN103404101 A CN 103404101A
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Abstract
The invention discloses a decoding method and a decoding apparatus. The decoding method comprises the steps of acquiring a first-class enciphered data package, which contains enciphered information with given information bit and comes from a RLC layer; predicting SN of a second-class enciphered data package, which comes from a physical layer of a sending terminal; decoding the second-class enciphered data package by means of the enciphered information with given information bit in the first-class enciphered data package based on the predicted SN. The decoding method and the decoding apparatus can effectively conduct decoding by using information with given information bit, and decoding efficiency can be improved.
Description
Technical field
The present invention relates to the communications field, and more specifically, relate to the method and apparatus of decoding.
Background technology
Along with popularizing of intelligent terminal and rolling up of mobile application demand, mobile service presents new characteristics, and the IP-based business such as web page browsing and video request program have accounted for the increasing proportion of network traffics of terminal.Compare traditional voice and file transfer business, network browsing and VOD service bring higher rate to the mobile network, the new demand such as prolong more in short-term, and these business self also present the characteristics that make new advances simultaneously.The descending larger transmission rate of these service needed, but for up, usually be mainly that a large amount of TCP/IP for downlink transfer of feedback confirms small data packets, these packet small parts are additional a small amount of contents on the TCP/IP leader, and major part only comprises the TCP/IP leader.According to ICP/IP protocol, the TCP/IP leader has a lot of fixing information, as the source address in the IP leader and some fixing contents such as region filling.These fixing information contain abundant Given information and can be utilized, but the packet that receives is due to the encryption through high-rise, these Given informations are all unknown in fact concerning the physical layer of base station side, can't utilize these encrypted Given informations to assist decoding in the base station side physical layer.
In prior art, for these fixing Given informations, physical layer is simply thought full 0 or complete 1, if encrypted, be no longer just full 0 or complete 1, can't assist decoding.
Summary of the invention
The embodiment of the present invention provides a kind of method and code translator of decoding, can promote the efficiency of utilizing the decoding of Given information position.
First aspect, a kind of method of decoding is provided, has comprised: obtain a class encrypted packets, this class encrypted packets is the Given information position information through encrypting, this class encrypted packets is controlled (Radio Link Control, referred to as " RLC ") layer from wireless link; Predict the SN of two class encrypted packets, this two classes encrypted packets is from the physical layer of transmitting terminal; , according to the SN of this prediction, utilize the Given information position information that in this class encrypted packets, this process is encrypted to carry out decoding to this two classes encrypted packets.
In the possible implementation of the first, before this obtains a class encrypted packets, the method also comprises: in the rlc layer entity, SN group interior each SN corresponding based on this RLC entity generates key stream corresponding to this SN, with this key stream, this Given information position information is encrypted, obtains this class encrypted packets.
In the possible implementation of the second, in conjunction with the possible implementation of the first of first aspect or first aspect, when with basic decoded mode to two class encrypted packets decoding errors, during the corresponding RLC entity of this two classes encrypted packets, before the SN of these prediction two class encrypted packets, also comprise: judge whether this two classes encrypted packets is this concern type data packets; When this judgment result is that this two classes encrypted packets for this concern type data packets, predict the SN of the Given information position correspondence in this two classes encrypted packets.
In the third possible implementation, the first or the possible implementation of the second in conjunction with first aspect or first aspect, when with basic decoded mode to two class encrypted packets decoding errors, when this class encrypted packets is deposited corresponding a plurality of RLC entity, before the SN of these prediction two class encrypted packets, also comprise: judge whether this two classes encrypted packets is this concern type data packets; When this judgment result is that this two classes encrypted packets for this concern type data packets, be chosen at the SN that predicts this Given information position correspondence in this two classes encrypted packets in the epimere time of reception after the corresponding SN group of this RLC entity of probability of occurrence maximum.
In the 4th kind of possible implementation, to the third any possible implementation, the SN of these prediction two class encrypted packets comprises: judge whether this two classes encrypted packets is new biography in conjunction with the first of first aspect or first aspect; When this judge the encrypted packets of this two class be whether new biography judgment result is that this two classes encrypted packets is new biography the time, judge whether the previous two class encrypted packets of this two classes encrypted packets correctly receive; When these these previous two class encrypted packets that judgment result is that judge that whether these previous two class encrypted packets of this two classes encrypted packets correctly receive correctly receive, predict this SN for the SN of these previous two class encrypted packets add 1 or predict this SN for the SN of these previous two class encrypted packets add 1 and add overflow after delivery.
in the 5th kind of possible implementation, the 4th kind of possible implementation in conjunction with first aspect, when these these previous two class encrypted packets that judgment result is that judge that whether these previous two class encrypted packets of this two classes encrypted packets correctly receive correctly receive, predict two class encrypted packets number n between two class encrypted packets of this two classes encrypted packets and previous correct reception, predict this Given information position packet SN for the SN of two class encrypted packets of this previous correct reception add this n add again 1 or the SN of two class encrypted packets of this previous correct reception add 1 and add the delivery afterwards that overflows.
In the 6th kind of possible implementation, the 4th kind of possible implementation in conjunction with first aspect, when this judge this two classes encrypted packets be whether new biography judgment result is that this two classes encrypted packets is not new biography the time, predict that the SN of the packet of this Given information position is last prediction SN to this class encrypted packets.8. the method that according to claim 1 to 7, any one is somebody's turn to do, it is characterized in that, this is according to the SN of this prediction, utilizes Given information position information that in this class encrypted packets, this process is encrypted to carry out decoding to this two classes encrypted packets and comprises: a class encrypted packets corresponding to SN of choosing this prediction; Utilize this Given information position information that this class enciphered data is wrapped to assist decoding to this two classes encrypted packets.
Second aspect, a kind of device of decoding is provided, it is characterized in that, comprise: receiver module, be used for obtaining a class encrypted packets, this class encrypted packets is the Given information position information through encrypting, and this class encrypted packets is from rlc layer, also be used for receiving two class encrypted packets, this two classes encrypted packets is from the physical layer of transmitting terminal; Processing module, for the SN of prediction two class encrypted packets; Decoding module, be used for the SN according to this prediction, utilizes the Given information position information that in this class encrypted packets, this process is encrypted to carry out decoding to this two classes encrypted packets
In the possible implementation of the first, also comprise: memory module is used for this class encrypted packets of storage and this two classes encrypted packets.
In the possible implementation of the second, in conjunction with the possible implementation of the first of second aspect or second aspect, this class encrypted packets is generated by rlc layer, comprise: in the rlc layer entity, SN group interior each SN corresponding based on this RLC entity generates key stream corresponding to this SN, with this key stream, this Given information position information is encrypted, obtains this class encrypted packets.
In the third possible implementation, the first or the possible implementation of the second in conjunction with second aspect or second aspect, when with basic decoded mode to two class encrypted packets decoding errors, during the corresponding RLC entity of this class encrypted packets, judge whether this two classes encrypted packets is this concern type data packets; When this judgment result is that this two classes encrypted packets for this concern type data packets, this processing module was predicted the SN of the packet of this Given information position.
In the 4th kind of possible implementation, in conjunction with the first of second aspect or second aspect to the third any possible implementation, this processing module is further used for, when with basic decoded mode to two class encrypted packets decoding errors, when this class encrypted packets is deposited corresponding a plurality of RLC entity, judge whether this two classes encrypted packets is this concern type data packets; When this judgment result is that this two classes encrypted packets for this concern type data packets, be chosen at the corresponding SN group of this RLC entity of probability of occurrence maximum in the epimere time of reception, predict the SN of this Given information position correspondence in this two classes encrypted packets.
In the 5th kind of possible implementation, in conjunction with four kinds of any possible implementations of the first to the of second aspect or second aspect, this processing module is further used for, and judges whether this two classes encrypted packets is new biography; When this judge the encrypted packets of this two class be whether new biography judgment result is that this two classes encrypted packets is new biography the time, judge whether the previous two class encrypted packets of this two classes encrypted packets correctly receive; When these these previous two class encrypted packets that judgment result is that judge that whether these previous two class encrypted packets of this two classes encrypted packets correctly receive correctly receive, predict this SN for the SN of these previous two class encrypted packets add 1 or predict this SN for the SN of these previous two class encrypted packets add 1 and add overflow after delivery.
In the 6th kind of possible implementation, five kinds of any possible implementations of the first to the in conjunction with second aspect or second aspect, this processing module is further used for, when these these previous two class encrypted packets that judgment result is that judge that whether these previous two class encrypted packets of this two classes encrypted packets correctly receive correctly receive, predict two class encrypted packets number n between two class encrypted packets of this two classes encrypted packets and previous correct reception, predict that this SN adds 1 again for the SN of two class encrypted packets of this previous correct reception adds this n.
In the 7th kind of possible implementation, six kinds of any possible implementations of the first to the in conjunction with second aspect or second aspect, when this judge this two classes encrypted packets be whether new biography judgment result is that this two classes encrypted packets is not new biography the time, predict that this SN is last prediction SN to this two classes encrypted packets.
In the 8th kind of possible implementation, in conjunction with seven kinds of any possible implementations of the first to the of second aspect or second aspect, this decoding module is further used for, and chooses a class encrypted packets corresponding to SN of this prediction; Utilize this Given information position information that this class enciphered data is wrapped to assist decoding to this two classes encrypted packets.
The third aspect, a kind of device of decoding is provided, comprise: receiver, be used for obtaining a class encrypted packets, this class encrypted packets is the Given information position information through encrypting, this class encrypted packets, from rlc layer, also is used for receiving two class encrypted packets, and this two classes encrypted packets is from the physical layer of transmitting terminal; Processor,, for the SN of prediction two class encrypted packets, also be used for the SN according to this prediction, utilizes the Given information position information that in this class encrypted packets, this process is encrypted to carry out decoding to this two classes encrypted packets
In the possible implementation of the first, also comprise: memory is used for this class encrypted packets of storage and this two classes encrypted packets.
In the possible implementation of the second, in conjunction with the possible implementation of the first of the third aspect or the third aspect, this class encrypted packets is generated by rlc layer, comprise: in the rlc layer entity, SN group interior each SN corresponding based on this RLC entity generates key stream corresponding to this SN, with this key stream, this Given information position information is encrypted, obtains this class encrypted packets.
In the third possible implementation, the first or the possible implementation of the second in conjunction with the third aspect or the third aspect, this processor is further used for, when with basic decoded mode to two class encrypted packets decoding errors, during the corresponding RLC entity of this class encrypted packets, judge whether this two classes encrypted packets is this concern type data packets; When this judgment result is that this two classes encrypted packets for this concern type data packets, this processor was predicted the SN of the packet of this Given information position.
In the 4th kind of possible implementation, in conjunction with the first of the third aspect or the third aspect to the third any possible implementation, this processor is further used for, when with basic decoded mode to two class encrypted packets decoding errors, when this class encrypted packets is deposited corresponding a plurality of RLC entity, judge whether this two classes encrypted packets is this concern type data packets; When this judgment result is that this two classes encrypted packets for this concern type data packets, be chosen at the corresponding SN group of this RLC entity of probability of occurrence maximum in the epimere time of reception, predict the SN of this Given information position correspondence in this two classes encrypted packets.
In the 5th kind of possible implementation, in conjunction with four kinds of any possible implementations of the first to the of the third aspect or the third aspect, this processor is further used for, and judges whether this two classes encrypted packets is new biography; When this judge the encrypted packets of this two class be whether new biography judgment result is that this two classes encrypted packets is new biography the time, judge whether the previous two class encrypted packets of this two classes encrypted packets correctly receive; When these these previous two class encrypted packets that judgment result is that judge that whether these previous two class encrypted packets of this two classes encrypted packets correctly receive correctly receive, predict this SN for the SN of these previous two class encrypted packets add 1 or predict this SN for the SN of these previous two class encrypted packets add 1 and add overflow after delivery.
In the 6th kind of possible implementation, five kinds of any possible implementations of the first to the in conjunction with the third aspect or the third aspect, this processor is further used for, when these these previous two class encrypted packets that judgment result is that judge that whether these previous two class encrypted packets of this two classes encrypted packets correctly receive correctly receive, predict two class encrypted packets number n between two class encrypted packets of this two classes encrypted packets and previous correct reception, predict that this SN adds 1 again for the SN of two class encrypted packets of this previous correct reception adds this n.
In the 7th kind of possible implementation, six kinds of any possible implementations of the first to the in conjunction with the third aspect or the third aspect, when this judge this two classes encrypted packets be whether new biography judgment result is that this two classes encrypted packets is not new biography the time, predict that this SN is last prediction SN to this two classes encrypted packets.
In the 8th kind of possible implementation, in conjunction with seven kinds of any possible implementations of the first to the of the third aspect or the third aspect, this processor is further used for, and chooses a class encrypted packets corresponding to SN of this prediction; Utilize this Given information position information that this class enciphered data is wrapped to assist decoding to this two classes encrypted packets.
Based on technique scheme, the embodiment of the present invention is in order to improve the decoding efficiency of physical layer, make physical layer can utilize encrypted Given information position to carry out decoding, SN in physical layer prediction two class encrypted packets, thereby high probability find this Given information position in a class enciphered message corresponding to this SN, utilize the upper information of this Given information position to carry out decoding to encrypted packets.Thereby the decoding speed that effectively improves, improved decoding performance.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below will the accompanying drawing of required use in the embodiment of the present invention be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the indicative flowchart according to the method for the decoding of the embodiment of the present invention.
Fig. 2 is the schematic block diagram according to the code translator of the embodiment of the present invention;
Fig. 3 is another schematic block diagram according to the code translator of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills obtain under the prerequisite of not making creative work every other embodiment, should belong to the scope of protection of the invention.
Fig. 1 shows the indicative flowchart according to the method 100 of the decoding of the embodiment of the present invention.The method of Fig. 1 is carried out in physical layer, and as shown in Figure 1, the method 100 comprises:
S110, obtain a class encrypted packets, and this class encrypted packets is the Given information position information through encrypting, and this class encrypted packets is controlled (Radio Link Control, referred to as " RLC ") layer from wireless link;
S120, the SN of prediction two class encrypted packets, this two classes encrypted packets is from the physical layer of transmitting terminal;
S130,, according to the SN of this prediction, utilize the Given information position information that in this class encrypted packets, this process is encrypted to carry out decoding to this two classes encrypted packets.
In embodiments of the present invention, in order to improve the decoding efficiency of physical layer, make physical layer can utilize encrypted Given information position to carry out decoding, SN in physical layer prediction two class encrypted packets, thereby high probability find this Given information position in a class enciphered message corresponding to this SN, utilize the upper information of this Given information position to carry out decoding to encrypted packets.Thereby the decoding speed that effectively improves, improved decoding performance.
In S110, obtain a class encrypted packets, this class encrypted packets is the Given information position information through encrypting, this class encrypted packets is from rlc layer.
Particularly, a class encrypted packets that obtains during the physical layer acquisition is mutual with rlc layer, this class enciphered data wraps in rlc layer gained after packet is encrypted.In packet, the partial information position is for what fix, and this fix information position is called the Given information position.
Physical layer is for a class encrypted packets of correct reception, with the neutralize enciphered message position deletion of Given information position corresponding to the SN of this packet of the information bank of physical layer.
In embodiments of the present invention, alternatively, before S110, the method 100 also comprises:
S140, in the rlc layer entity, SN group interior each SN corresponding based on this RLC entity generates key stream corresponding to this SN, with this key stream, this Given information position information is encrypted, and obtains this class encrypted packets.
Alternatively, S140 comprises:
S141, each SN in rlc layer is the corresponding SN group of RLC entity generates key stream corresponding to this SN.
At rlc layer, different RLC entities can be arranged, each RLC entity has its corresponding SN group.Each SN group consists of some SN.The RLC entity is different, and the SN group is also different.For the SN in each SN group generates the key stream corresponding with this SN.This key stream is used for packet is encrypted.
S142, be encrypted the Given information position respectively with this key stream at this rlc layer, generates the Given information after encrypting, and the Given information after this is encrypted is this class encrypted packets.
At rlc layer, with this key stream, known bits information is encrypted, cipher mode has multiple, for example with this key stream, known bits information is carried out XOR, the class encrypted packets after just can being encrypted by bit.
Rlc layer in the interactive communication with physical layer, wraps in this class enciphered data in interactive communication and is transferred to physical layer.
In S120, the SN of prediction two class encrypted packets, this two classes encrypted packets is from the physical layer of transmitting terminal.
Alternatively, this two classes encrypted packets is from the physical layer of transmitting terminal, and this two classes encrypted packets is also to be encrypted at rlc layer.The SN of two class encrypted packets, this SN be Given information position corresponding to this SN in a class encrypted packets, and be identical or corresponding with the Given information position that comprises in two classes encryption number bags corresponding to this SN.
Alternatively, S120 comprises,
S121, judge whether this two classes encrypted packets is new biography.In physical layer, a class encrypted packets, by the interactive communication of rlc layer and physical layer, is transferred to physical layer by rlc layer.Two class encrypted packets are sent to encrypted packets the receiving terminal of physical layer by transmission channel by the transmitting terminal from physical layer, and at receiving terminal, carry out decoding.One class encrypted packets and two class encrypted packet comprise identical known bits, due to two class encrypted packets process transmission channels, receive that likely the other factors such as noise disturbs and makes mistakes, also can utilize the Given information position in a class encrypted packets, two class encrypted packets are carried out decoding.
The transmitting terminal physical layer sends two class encrypted packets to receiving terminal, and when two class encrypted packets took defeat, transmitting terminal was retransmitted this two class encrypted packets that take defeat.For the physical layer receiving terminal,, when the two class encrypted packets that receive are non-repeating transmission, namely receive for the first time this two classes encrypted packets, this two classes encrypted packets is new biography.
Receiving terminal in physical layer, store the accepting state of the two class encrypted packets that receiving terminal receives, whether this accepting state has indicated two received class encrypted packets successfully to receive, according to this indication information, when the two class packets that receive are not recorded as and take defeat at receiving terminal, can judge that this two classes encrypted packets is new biography, when the two class packets that receive are recorded as and take defeat at receiving terminal, can judge this two classes encrypted packets for retransmitting, but not new biography.
Alternatively, S120 also comprises,
S122a, in S121 when judge two class encrypted packets be whether new biography judgment result is that this two classes encrypted packets is not new biography the time, the SN of prediction two class encrypted packets be the prediction SN of last time to this two classes encrypted packets.
When this two classes encrypted packets is not new biography, show that this encrypted packets is transferred to for the first time the physical layer receiving terminal therefore transmitting terminal that takes defeat and resends this two classes encrypted packets, the physical layer receiving terminal has carried out prediction SN to this two classes encrypted packets when receiving this two classes encrypted packets for the first time, prediction steps is with reference to step S120, when the physical layer receiving terminal was received this two classes encrypted packets of physical layer transmitting terminal repeating transmission again, the SN that predicts the packet of described Given information position was last prediction SN to described two class encrypted packets.
Alternatively, S120 also comprises,
S122b, judge that in S121 whether this two classes encrypted packets is judgment result is that when this two classes encrypted packets is new biography of new biography, judges whether the previous packet of this two classes encrypted packets correctly receives.
Alternatively, S120 also comprises,
S123a, in S122b, judge the previous packet of this encrypted packets,, when this previous packet that judgment result is that this encrypted packets that judges that whether the previous packet of this encrypted packets correctly receives correctly receives, predict that this SN adds 1 or add 1 and add the rear delivery that overflows for this previous packet SN for the SN of this previous packet.
Alternatively, S120 also comprises,
S123b, in S122b, judge the previous two class packets of this two classes encrypted packets, when these previous two class packets that judgment result is that this encrypted packets that judge whether the previous two class packets of this two classes encrypted packets correctly receive correctly do not receive, predict the SN number n between two class packets of this encrypted packets and previous correct reception, the prediction SN of institute be two class packet SN of described previous correct reception add the described n of adding add 1 or the SN of two class encrypted packets of previous correct reception add 1 and add overflow after delivery.
In the embodiment of the present invention, alternatively, when predicting for the first time, for not having previous two class packets or not existing in the situation of two class encrypted packets of previous correct reception, the SN that makes previous two class packets be 0 or the SN of two class encrypted packets of previous correct reception be 0.
In embodiments of the present invention, alternatively, before S120, the method 100 also comprises:
S150, when encrypted packets comes from a RLC entity, judge whether described encrypted packets is to pay close attention to type data packets; Described judgment result is that when described encrypted packets is the concern type data packets, prediction SN.
This concern categorical data packet index is according to including the packet that enriches known bits information in bag, and for example the TCPACK bag, perhaps add the packet that preamble bit has known bits information in data.Paying close attention to type data packets is packet to be encrypted,
In existing network, the TCPACK bag eats dishes without rice or wine to determine whether to pay close attention to type data packets into 354bits according to data package size at present., for the packet that receives,, if this data package size is 354bits, when it adopts basic decoding algorithm failure, can assist decoding to it.
According to the existing network data analysis, the TCP head also there will be 32bytes and 44bytes, and at this moment, whole TCP ACK can be split into 2 354bits bags, and second bag is comprised of TCP remaining information and preamble bit.Assist the packet of certain 354bits of decoding for needs, if the prediction SN of this packet adds 1 for the SN of first bag of certain correct TCP ACK that receives, think that the Given information of this packet is the interior Given information of second packet of TCP ACK bag, otherwise the Given information of this packet is the interior Given information of first packet of TCPACK bag.
In embodiments of the present invention, alternatively, before S120, the method 100 also comprises:
S160, when enciphered data comes from a plurality of RLC entities, this also comprises before predicting the SN of the packet of this Given information position in this encrypted packets:
Be chosen at the RLC entity of probability of occurrence maximum in the epimere time of reception, wherein the epimere time of reception can be chosen according to concrete application scenarios.
Judge whether described encrypted packets is to pay close attention to type data packets; Described judgment result is that when described encrypted packets is the concern type data packets, prediction SN.
This concern categorical data packet index is according to including the packet that enriches known bits information in bag, and for example the TCPACK bag, perhaps add the packet that preamble bit has known bits information in data.Paying close attention to type data packets is packet to be encrypted,
In existing network, TCP ACK bag eats dishes without rice or wine to determine whether to pay close attention to type data packets into 354bits according to data package size at present., for the packet that receives,, if this data package size is 354bits, when it adopts basic decoding algorithm failure, can assist decoding to it.
According to the existing network data analysis, the TCP head also there will be 32bytes and 44bytes, and at this moment, whole TCPACK can be split into 2 354bits bags, and second bag is comprised of TCP remaining information and preamble bit.Assist the packet of certain 354bits of decoding for needs, if the prediction SN of this packet adds 1 for the SN of first bag of certain correct TCPACK that receives, think that the Given information of this packet is the interior Given information of second packet of TCP ACK bag, otherwise the Given information of this packet is the interior Given information of first packet of TCPACK bag.
Describedly judgment result is that described encrypted packets is described TCP ACK and/or during with preamble bit, prediction SN.Prediction steps, as described in S120, is not repeated herein.
When prediction error, can choose one by one again packet corresponding to other RLC entity.
S130,, according to the SN of this prediction, utilize the Given information position information that in this class encrypted packets, this process is encrypted to carry out decoding to this two classes encrypted packets.
Alternatively, S130 comprises,
S131, the Given information bit encryption information of the class encrypted packets that the SN that predicts in selecting step S120 is corresponding.
Alternatively, S130 comprises,
S132, utilize the upper enciphered message of this Given information position to assist decoding to described encrypted packets.
Auxiliary being decoded as utilizes the Given information position to carry out decoding, alternatively,
Feel relieved than (Log Likelihood Ratio at the demodulation logarithm, referred to as " LLR ") before result sends into decoder, the Bit that is identified as Given information is mapped to the infinitely large quantity of the corresponding polarity of demodulation LLR or certain saturation value of setting, this value is added to or is substituted on system bits corresponding to demodulation LLR.
Alternatively, inner at decoder, the Bit that is identified as Given information is mapped to the infinitely large quantity of the corresponding polarity of demodulation LLR or certain saturation value of setting, this value is added to or is substituted on the external information of corresponding system bits, this replacement or the process that adds can, in the process of each component decoder decoding, can be also that decoding starts front initialization prior information.
In embodiments of the present invention, in order to improve the decoding efficiency of physical layer, make physical layer can utilize encrypted Given information position to carry out decoding, SN in physical layer prediction two class encrypted packets, thereby high probability find this Given information position in a class enciphered message corresponding to this SN, utilize the upper information of this Given information position to carry out decoding to encrypted packets.Thereby the decoding speed that effectively improves, improved decoding performance.
Should understand, in various embodiment of the present invention, the size of the sequence number of above-mentioned each process does not also mean that the priority of execution sequence, and the execution sequence of each process should determine with its function and internal logic, and should not form any restriction to the implementation process of the embodiment of the present invention.
Fig. 2 shows the schematic block diagram according to the code translator 200 of the embodiment of the present invention.The device that Fig. 2 and explanation thereof disclose, the method for the decoding that can disclose based on embodiment of the present invention Fig. 1 with based on embodiment of the present invention Fig. 1.
Can be corresponding to the method for the decoding according to the embodiment of the present invention according to the code translator 200 of the embodiment of the present invention, and above-mentioned and other operation of the modules in code translator 200 and/or function are respectively in order to realize the corresponding flow process of each method in Fig. 1, for simplicity, do not repeat them here.
As shown in Figure 2, code translator comprises:
Receiver module, be used for obtaining a class encrypted packets, this class encrypted packets is the Given information position information through encrypting, and this class encrypted packets is from rlc layer, also be used for receiving two class encrypted packets, this two classes encrypted packets is from the physical layer of transmitting terminal;
Processing module, for the SN of prediction two class encrypted packets;
Decoding module, be used for the SN according to this prediction, utilizes the Given information position information that in this class encrypted packets, this process is encrypted to carry out decoding to this two classes encrypted packets.
Alternatively, this code translator can also comprise, memory module is used for this class encrypted packets of storage and this two classes encrypted packets.
Alternatively, this class encrypted packets is generated by rlc layer, comprising:
In the rlc layer entity, SN group interior each SN corresponding based on this RLC entity generates key stream corresponding to this SN, with this key stream, this Given information position information is encrypted, and obtains this class encrypted packets.
Alternatively, this processing module is further used for, when with basic decoded mode to two class encrypted packets decoding errors, during the corresponding RLC entity of this class encrypted packets, judge whether this two classes encrypted packets is this concern type data packets;
When this judgment result is that this two classes encrypted packets for this concern type data packets, this processing module was predicted the SN of the packet of this Given information position.
Alternatively, this processing module is further used for, when with basic decoded mode to two class encrypted packets decoding errors, when this class encrypted packets is deposited corresponding a plurality of RLC entity, judge whether this two classes encrypted packets is this concern type data packets; When this judgment result is that this two classes encrypted packets for this concern type data packets, be chosen at the corresponding SN group of this RLC entity of probability of occurrence maximum in the epimere time of reception, predict the SN of this Given information position correspondence in this two classes encrypted packets.
Alternatively, this processing module is further used for, and judges whether this two classes encrypted packets is new biography;
When this judge the encrypted packets of this two class be whether new biography judgment result is that this two classes encrypted packets is new biography the time, judge whether the previous two class encrypted packets of this two classes encrypted packets correctly receive.
When these these previous two class encrypted packets that judgment result is that judge that whether these these previous two class encrypted packets of carrying out two class encrypted packets correctly receive correctly receive, predict this SN for the SN of these previous two class encrypted packets add 1 or predict this SN for the SN of these previous two class encrypted packets add 1 and add overflow after delivery.
Alternatively, this processing module is further used for, when these these previous two class encrypted packets that judgment result is that judge that whether these previous two class encrypted packets of this two classes encrypted packets correctly receive correctly receive, predict two class encrypted packets number n between two class encrypted packets of this two classes encrypted packets and previous correct reception, predict that this SN adds 1 again for the SN of two class encrypted packets of this previous correct reception adds this n.
Alternatively, when this judge this two classes encrypted packets be whether new biography judgment result is that this two classes encrypted packets is not new biography the time, predict that this SN is last prediction SN to this two classes encrypted packets.
This decoding module is further used for alternatively, chooses a class encrypted packets corresponding to SN of this prediction;
Utilize this Given information position information that this class enciphered data is wrapped to assist decoding to this two classes encrypted packets.The step of auxiliary decoding can be described with reference to S130 in the inventive method embodiment, is not repeated herein.
The code translator 200 that the embodiment of the present invention discloses, can be positioned at the various device that comprises base station of physical layer, but also disparate modules lays respectively in the different equipment of physical layer, and the present invention is not construed as limiting.
In embodiments of the present invention, in order to improve the decoding efficiency of physical layer, make physical layer can utilize encrypted Given information position to carry out decoding, SN in physical layer prediction two class encrypted packets, thereby high probability find this Given information position in a class enciphered message corresponding to this SN, utilize the upper information of this Given information position to carry out decoding to encrypted packets.Thereby the decoding speed that effectively improves, improved decoding performance.
Fig. 3 shows the schematic block diagram according to the code translator 300 of the embodiment of the present invention.The device that Fig. 3 and explanation thereof disclose, the method for the decoding that can disclose based on embodiment of the present invention Fig. 1 with based on embodiment of the present invention Fig. 1, and the device that discloses based on Fig. 2.
Can be corresponding to the method for the decoding according to the embodiment of the present invention according to the code translator 300 of the embodiment of the present invention, and above-mentioned and other operation of each device in code translator 300 and/or function are respectively in order to realize the corresponding flow process of each method in Fig. 1, for simplicity, do not repeat them here.
As shown in Figure 3, code translator comprises:
Receiver, be used for obtaining a class encrypted packets, this class encrypted packets is the Given information position information through encrypting, and this class encrypted packets is from rlc layer, also be used for receiving two class encrypted packets, this two classes encrypted packets is from the physical layer of transmitting terminal;
Processor,, for the SN of prediction two class encrypted packets, also be used for the SN according to this prediction, utilizes the Given information position information that in this class encrypted packets, this process is encrypted to carry out decoding to this two classes encrypted packets.
Alternatively, this code translator can also comprise, memory is used for this class encrypted packets of storage and this two classes encrypted packets.
Alternatively, this class encrypted packets is generated by rlc layer, comprising:
In the rlc layer entity, SN group interior each SN corresponding based on this RLC entity generates key stream corresponding to this SN, with this key stream, this Given information position information is encrypted, and obtains this class encrypted packets.
Alternatively, this processor is further used for, when with basic decoded mode to two class encrypted packets decoding errors, during the corresponding RLC entity of this class encrypted packets, judge whether this two classes encrypted packets is this concern type data packets;
When this judgment result is that this two classes encrypted packets for this concern type data packets, this processor was predicted the SN of the packet of this Given information position.
Alternatively, this processor is further used for, when with basic decoded mode to two class encrypted packets decoding errors, when this class encrypted packets is deposited corresponding a plurality of RLC entity, judge whether this two classes encrypted packets is this concern type data packets; When this judgment result is that this two classes encrypted packets for this concern type data packets, be chosen at the corresponding SN group of this RLC entity of probability of occurrence maximum in the epimere time of reception, predict the SN of this Given information position correspondence in this two classes encrypted packets.
Alternatively, this processor is further used for, and judges whether this two classes encrypted packets is new biography;
When this judge the encrypted packets of this two class be whether new biography judgment result is that this two classes encrypted packets is new biography the time, judge whether the previous two class encrypted packets of this two classes encrypted packets correctly receive.
When these these previous two class encrypted packets that judgment result is that judge that whether these these previous two class encrypted packets of carrying out two class encrypted packets correctly receive correctly receive, predict this SN for the SN of these previous two class encrypted packets add 1 or predict this SN for the SN of these previous two class encrypted packets add 1 and add overflow after delivery.
Alternatively, this processor is further used for, when these these previous two class encrypted packets that judgment result is that judge that whether these previous two class encrypted packets of this two classes encrypted packets correctly receive correctly receive, predict two class encrypted packets number n between two class encrypted packets of this two classes encrypted packets and previous correct reception, predict that this SN adds 1 again for the SN of two class encrypted packets of this previous correct reception adds this n.
Alternatively, when this judge this two classes encrypted packets be whether new biography judgment result is that this two classes encrypted packets is not new biography the time, predict that this SN is last prediction SN to this two classes encrypted packets.
Alternatively, this processor is further used for, and chooses a class encrypted packets corresponding to SN of this prediction; Utilize this Given information position information that this class enciphered data is wrapped to assist decoding to this two classes encrypted packets.The step of auxiliary decoding can be described with reference to S130 in the inventive method embodiment, is not repeated herein.
The code translator 300 that the embodiment of the present invention discloses, can be positioned at the various device that comprises base station of physical layer, but also different components lays respectively in the different equipment of physical layer, and the present invention is not construed as limiting.
In embodiments of the present invention, in order to improve the decoding efficiency of physical layer, make physical layer can utilize encrypted Given information position to carry out decoding, SN in physical layer prediction two class encrypted packets, thereby high probability find this Given information position in a class enciphered message corresponding to this SN, utilize the upper information of this Given information position to carry out decoding to encrypted packets.Thereby the decoding speed that effectively improves, improved decoding performance.
Should be understood that in embodiments of the present invention, term " and/or " be only a kind of incidence relation of describing affiliated partner, can there be three kinds of relations in expression.For example, A and/or B can represent: individualism A exists A and B, these three kinds of situations of individualism B simultaneously.In addition, character "/", represent that generally forward-backward correlation is to liking a kind of relation of "or" herein.
Those of ordinary skills can recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or combination both, for the interchangeability of hardware and software clearly is described, composition and the step of each example described in general manner according to function in the above description.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.
The those skilled in the art can be well understood to, and for the convenience described and succinct, the specific works process of the system of foregoing description, device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.
In several embodiment that the application provides, should be understood that disclosed system, apparatus and method can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual the realization, other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.In addition, shown or discussed coupling each other or direct-coupling or communication connection can be indirect coupling or communication connections by some interfaces, device or unit, can be also electric, machinery or other form connect.
Described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of unit to realize the purpose of embodiment of the present invention scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and can be also that two or more unit are integrated in a unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, also can adopt the form of SFU software functional unit to realize.
If the form of SFU software functional unit of using described integrated unit realizes and during as production marketing independently or use, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words, perhaps all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), the various media that can be program code stored such as random access memory (RAM, Random Access Memory), magnetic disc or CD.
The above; it is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily modification or the replacement of various equivalences, within these modifications or replacement all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (26)
1. the method for a decoding, is characterized in that, comprising:
Obtain a class encrypted packets, a described class encrypted packets is the Given information position information through encrypting, and a described class encrypted packets is controlled rlc layer from wireless link;
Predict the sequence number SN of two class encrypted packets, described two class encrypted packets are from the physical layer of transmitting terminal;
, according to the SN of described prediction, utilize described in a described class encrypted packets, through the Given information position information of encrypting, described two class encrypted packets are carried out decoding.
2. method according to claim 1, is characterized in that, described obtain a class encrypted packets before, described method also comprises:
In the rlc layer entity, SN group interior each SN corresponding based on described RLC entity generates key stream corresponding to this SN, with described key stream, described Given information position information is encrypted, and obtains a described class encrypted packets.
3. method according to claim 1 and 2, it is characterized in that, when with basic decoded mode to two class encrypted packets decoding errors, during the corresponding RLC entity of described two class encrypted packets, before the SN of described prediction two class encrypted packets, also comprise: judge whether described two class encrypted packets are described concern type data packets;
While judgment result is that described two class encrypted packets are described concern type data packets, predict the SN of the Given information position correspondence in described two class encrypted packets when described.
4. the described method of method according to claim 1 and 2, it is characterized in that, when with basic decoded mode to two class encrypted packets decoding errors, when a described class encrypted packets is deposited corresponding a plurality of RLC entity, before the SN of described prediction two class encrypted packets, also comprise:
Judge whether described two class encrypted packets are described concern type data packets;
Described judgment result is that when described two class encrypted packets are described concern type data packets, be chosen at the SN that predicts the described Given information position correspondence in described two class encrypted packets in the epimere time of reception after the corresponding SN group of the described RLC entity of probability of occurrence maximum.
5. the described method of any one according to claim 1 to 4, is characterized in that, the SN of described prediction two class encrypted packets comprises:
Judge whether described two class encrypted packets are new biography;
, when whether the described encrypted packets that judges described two classes is described two class encrypted packets of judgment result is that of new biography while being new biography, judge whether the previous two class encrypted packets of described two class encrypted packets correctly receive;
The described previous two class encrypted packets that judgment result is that whether correctly receive when the described described previous two class encrypted packets that judge described two class encrypted packets correctly receive, and predicts that described SN is that the SN of described previous two class encrypted packets adds 1 or predict that described SN is that the SN of described previous two class encrypted packets adds 1 and add the delivery afterwards that overflows.
6. method according to claim 5, it is characterized in that, judgment result is that when whether the described described previous two class encrypted packets that judge described two class encrypted packets correctly receive that described previous two class encrypted packets correctly received, predict two class encrypted packets number n between two class encrypted packets of described two class encrypted packets and previous correct reception, the SN that predicts the packet of described Given information position be the SN of two class encrypted packets of described previous correct reception add described n add again 1 or the SN of two class encrypted packets of described previous correct reception add described n add again 1 and add overflow after delivery.
7. method according to claim 5, it is characterized in that, judge that when described whether described two class encrypted packets are described two class encrypted packets of judgment result is that of new biography while being not new biography, the SN that predicts the packet of described Given information position is last prediction SN to a described class encrypted packets.
8. the described method of any one according to claim 1 to 7, is characterized in that, described SN according to described prediction utilizes the Given information position information of passing through encryption described in a described class encrypted packets to carry out decoding to described two class encrypted packets and comprises:
Choose a class encrypted packets corresponding to SN of described prediction;
Utilize the described Given information position information that a described class enciphered data is wrapped to assist decoding to described two class encrypted packets.
9. the device of a decoding, is characterized in that, comprising:
Receiver module, be used for obtaining a class encrypted packets, a described class encrypted packets is the Given information position information through encrypting, and a described class encrypted packets is from rlc layer, also be used for receiving two class encrypted packets, described two class encrypted packets are from the physical layer of transmitting terminal;
Processing module, for the SN of prediction two class encrypted packets;
Decoding module, be used for the SN according to described prediction, utilizes described in a described class encrypted packets, through the Given information position information of encrypting, described two class encrypted packets are carried out decoding.
10. device according to claim 9, is characterized in that, also comprises:
Memory module, be used for storing a described class encrypted packets and described two class encrypted packets.
11. according to claim 9 or 10 described devices, is characterized in that, a described class encrypted packets is generated by rlc layer, comprising:
In the rlc layer entity, SN group interior each SN corresponding based on described RLC entity generates key stream corresponding to this SN, with described key stream, described Given information position information is encrypted, and obtains a described class encrypted packets.
12. the described device of any one according to claim 9 to 11, it is characterized in that, described processing module is further used for, when with basic decoded mode to two class encrypted packets decoding errors, during the corresponding RLC entity of a described class encrypted packets, judge whether described two class encrypted packets are described concern type data packets;
Described judgment result is that when described two class encrypted packets are described concern type data packets, the SN of the packet of described processing module prediction described Given information position.
13. according to claim 9 to 12, the described device of any one, is characterized in that, described processing module is further used for, when with basic decoded mode to two class encrypted packets decoding errors, when a described class encrypted packets is deposited corresponding a plurality of RLC entity,
Judge whether described two class encrypted packets are described concern type data packets;
Described judgment result is that when described two class encrypted packets are described concern type data packets, be chosen at the corresponding SN group of described RLC entity of probability of occurrence maximum in the epimere time of reception, predict the SN of the described Given information position correspondence in described two class encrypted packets.
14. according to claim 9 to 13, the described device of any one, is characterized in that, described processing module is further used for,
Judge whether described two class encrypted packets are new biography;
, when whether the described encrypted packets that judges described two classes is described two class encrypted packets of judgment result is that of new biography while being new biography, judge whether the previous two class encrypted packets of described two class encrypted packets correctly receive;
The described previous two class encrypted packets that judgment result is that whether correctly receive when the described described previous two class encrypted packets that judge described two class encrypted packets correctly receive, and predicts that described SN is that the SN of described previous two class encrypted packets adds 1 or predict that described SN is that the SN of described previous two class encrypted packets adds 1 and add the delivery afterwards that overflows.
15. the described device of any one according to claim 9 to 14, it is characterized in that, described processing module is further used for, judgment result is that when whether the described described previous two class encrypted packets that judge described two class encrypted packets correctly receive that described previous two class encrypted packets correctly received, predict two class encrypted packets number n between two class encrypted packets of described two class encrypted packets and previous correct reception, predict described SN be the SN of two class encrypted packets of described previous correct reception add described n add again 1 or the SN of two class encrypted packets of described previous correct reception add described n add again 1 and add overflow after delivery.
16. the described device of any one according to claim 9 to 15, it is characterized in that, judge that when described whether described two class encrypted packets are described two class encrypted packets of judgment result is that of new biography while being not new biography, predict that described SN is last prediction SN to described two class encrypted packets.
17. according to claim 9 to 16, the described device of any one, is characterized in that, described decoding module is further used for,
Choose a class encrypted packets corresponding to SN of described prediction;
Utilize the described Given information position information that a described class enciphered data is wrapped to assist decoding to described two class encrypted packets.
18. the device of a decoding, is characterized in that, comprising:
Receiver, be used for obtaining first kind encrypted packets, described first kind encrypted packets is the Given information position information through encrypting, and described first kind encrypted packets is from rlc layer, also be used for receiving the Equations of The Second Kind encrypted packets, described Equations of The Second Kind encrypted packets is from the physical layer of transmitting terminal;
Processor,, for the SN of prediction Equations of The Second Kind encrypted packets, also be used for the SN according to described prediction, utilizes described in described first kind encrypted packets, through the Given information position information of encrypting, described Equations of The Second Kind encrypted packets is carried out decoding.
19. device according to claim 18, is characterized in that, also comprises:
Memory, be used for storing described first kind encrypted packets and described Equations of The Second Kind encrypted packets.
20. according to claim 18 or 19 described devices, is characterized in that, described first kind encrypted packets is generated by rlc layer, comprising:
In the rlc layer entity, SN group interior each SN corresponding based on described RLC entity generates key stream corresponding to this SN, with described key stream, described Given information position information is encrypted, and obtains described first kind encrypted packets.
21. according to claim 18 to the described device of any one in 20, it is characterized in that, described processor is further used for, when with basic decoded mode to Equations of The Second Kind encrypted packets decoding error, during the corresponding RLC entity of described first kind encrypted packets, judge whether described Equations of The Second Kind encrypted packets is described concern type data packets;
Described judgment result is that when described Equations of The Second Kind encrypted packets is described concern type data packets, the SN of the packet of described processor prediction described Given information position.
22., according to claim 18 to the described device of any one in 21, it is characterized in that, described processor is further used for, when with basic decoded mode to Equations of The Second Kind encrypted packets decoding error, when described first kind encrypted packets is deposited corresponding a plurality of RLC entity,
Judge whether described Equations of The Second Kind encrypted packets is described concern type data packets;
Described judgment result is that when described Equations of The Second Kind encrypted packets is described concern type data packets, be chosen at the corresponding SN group of described RLC entity of probability of occurrence maximum in the epimere time of reception, predict the SN of the described Given information position correspondence in described Equations of The Second Kind encrypted packets.
23., according to claim 18 to the described device of any one in 22, it is characterized in that, described processor is further used for,
Judge whether described Equations of The Second Kind encrypted packets is new biography;
, when whether the described encrypted packets that judges described Equations of The Second Kind is the described Equations of The Second Kind encrypted packets of judgment result is that of new biography while being new biography, judge whether the previous Equations of The Second Kind encrypted packets of described Equations of The Second Kind encrypted packets correctly receives;
The described previous Equations of The Second Kind encrypted packets that judgment result is that whether correctly receives when the described described previous Equations of The Second Kind encrypted packets that judges described Equations of The Second Kind encrypted packets correctly receives, and predict that described SN is that the SN of described previous Equations of The Second Kind encrypted packets adds 1 or predict that described SN is that the SN of described previous Equations of The Second Kind encrypted packets adds 1 and add the delivery afterwards that overflows.
24. according to claim 18 to the described device of any one in 23, it is characterized in that, described processor is further used for, judgment result is that when whether the described described previous Equations of The Second Kind encrypted packets that judges described Equations of The Second Kind encrypted packets correctly receives that described previous Equations of The Second Kind encrypted packets correctly received, predict Equations of The Second Kind encrypted packets number n between the Equations of The Second Kind encrypted packets of described Equations of The Second Kind encrypted packets and previous correct reception, predict described SN be the SN of the Equations of The Second Kind encrypted packets of described previous correct reception add described n add again 1 or the SN of the Equations of The Second Kind encrypted packets of described previous correct reception add described n add again 1 and add overflow after delivery.
25. according to claim 18 to the described device of any one in 24, it is characterized in that, judge that when described whether described Equations of The Second Kind encrypted packets is the described Equations of The Second Kind encrypted packets of judgment result is that of new biography while being not new biography, predicts that described SN is last prediction SN to described Equations of The Second Kind encrypted packets.
26., according to claim 18 to the described device of any one in 25, it is characterized in that, described processor is further used for,
Choose the first kind encrypted packets corresponding to SN of described prediction;
Utilize the described Given information position information that described first kind enciphered data is wrapped to assist decoding to described Equations of The Second Kind encrypted packets.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/088101 WO2014101214A1 (en) | 2012-12-31 | 2012-12-31 | Decoding method and device |
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| CN103404101A true CN103404101A (en) | 2013-11-20 |
| CN103404101B CN103404101B (en) | 2015-11-25 |
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| CN1443428A (en) * | 2000-05-23 | 2003-09-17 | 诺泰网络有限公司 | Method for controlling channel handover in cellular radiocommunications network |
| CN1753516A (en) * | 2004-09-21 | 2006-03-29 | 华为技术有限公司 | Wireless access network and its communication method |
| WO2006116620A2 (en) * | 2005-04-26 | 2006-11-02 | Qualcomm Incorporated | Ciphering and re-ordering packets in a wireless communication system |
| CN1917411A (en) * | 2005-08-16 | 2007-02-21 | 中兴通讯股份有限公司 | System and method for realization of accessing high speed down going packets in multiple carriers |
| CN101795184A (en) * | 2010-01-27 | 2010-08-04 | 华为终端有限公司 | Memory management method and device |
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2012
- 2012-12-31 WO PCT/CN2012/088101 patent/WO2014101214A1/en active Application Filing
- 2012-12-31 CN CN201280002790.6A patent/CN103404101B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1443428A (en) * | 2000-05-23 | 2003-09-17 | 诺泰网络有限公司 | Method for controlling channel handover in cellular radiocommunications network |
| CN1753516A (en) * | 2004-09-21 | 2006-03-29 | 华为技术有限公司 | Wireless access network and its communication method |
| WO2006116620A2 (en) * | 2005-04-26 | 2006-11-02 | Qualcomm Incorporated | Ciphering and re-ordering packets in a wireless communication system |
| CN1917411A (en) * | 2005-08-16 | 2007-02-21 | 中兴通讯股份有限公司 | System and method for realization of accessing high speed down going packets in multiple carriers |
| CN101795184A (en) * | 2010-01-27 | 2010-08-04 | 华为终端有限公司 | Memory management method and device |
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| CN103404101B (en) | 2015-11-25 |
| WO2014101214A1 (en) | 2014-07-03 |
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