WO2017162004A1 - 一种竞争式随机接入的方法及装置 - Google Patents

一种竞争式随机接入的方法及装置 Download PDF

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Publication number
WO2017162004A1
WO2017162004A1 PCT/CN2017/075039 CN2017075039W WO2017162004A1 WO 2017162004 A1 WO2017162004 A1 WO 2017162004A1 CN 2017075039 W CN2017075039 W CN 2017075039W WO 2017162004 A1 WO2017162004 A1 WO 2017162004A1
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WO
WIPO (PCT)
Prior art keywords
base station
uplink transmission
random access
transmission data
rar
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PCT/CN2017/075039
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English (en)
French (fr)
Inventor
李庆华
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大唐移动通信设备有限公司
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Publication of WO2017162004A1 publication Critical patent/WO2017162004A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for competing random access.
  • the competitive random access procedure is the initial UE.
  • the indispensable process for accessing the base station, as shown in Figure 1, the competitive random access process has the following four steps:
  • the UE selects a preamble sequence from all the preamble sequences for the contention random access in the camping cell, and sends the selected preamble sequence to the physical random access channel (PRACH).
  • PRACH physical random access channel
  • the base station sends a random access response (RAR) based on a physical downlink shared channel (PDSCH), where the RAR includes at least: an initial Assigned Physical Uplink Shared Channel (PUSCH).
  • RAR random access response
  • the UE After receiving the RAR sent by the base station, the UE sends the transmission information carrying the UE identifier to the base station based on the PUSCH carried in the RAR.
  • the UE After the UE receives the contention resolution message returned by the base station in the set time, the UE determines that the UE identifier carried in the contention resolution message is the same as the UE identity reported to the base station, and determines that the random access succeeds. The UE does not receive the contention resolution message returned by the base station within the set time, determines that the random access fails, and triggers the contention random access procedure again.
  • the base station since the preamble sequence sent by the UE is randomly selected from all the preamble sequences used for the contention random access of the camping cell, there may be multiple UEs selected.
  • the preamble sequence is the same. Since the base station can only determine whether the detected preamble sequence is activated, it is not determined whether the UE selecting the preamble sequence has collided. Therefore, when the base station allocates the PUSCH resource, the base station may allocate the PUSCH resource to the already The collision of the UE not only causes waste of PUSCH resources, but also consumes the base station to send RAR. The PDSCH resources occupied at the time, which causes the waste of PDSCH resources.
  • the embodiments of the present invention provide a method and a device for competing random access, which are used to solve the problem that the competitive random access method in the prior art has a large collision probability of the UE and a low utilization rate of the uplink and downlink transmission resources.
  • a method of competitive random access comprising:
  • the UE When the UE accesses the base station for the first time, the UE sends its own UE identification information to the base station to trigger the contention random access procedure.
  • the UE sends the selected preamble sequence to the base station, and when receiving the RAR returned by the base station, sends uplink transmission data information to the base station based on the uplink transmission resource initially allocated by the base station that is carried in the RAR, where
  • the RAR is that, when the base station determines that the UE identity information sent by the UE is received, and does not receive the UE identity information sent by the other UE, the base station allocates corresponding uplink transmission resources to the UE based on the preamble sequence. return;
  • the UE determines that the contention random access is successful based on the received transmission data response returned by the base station based on the uplink transmission data information.
  • the UE sends its own UE identification information to the base station, including:
  • the UE performs spreading processing on the UE identification information of the UE, generates a corresponding first type of UE identifier spreading sequence, and sends the first type of UE identifier spreading sequence to the location based on the guard band of the physical random access channel PRACH.
  • Said base station or,
  • the UE performs modulation processing on its own UE identification information, generates a corresponding first type of UE identity modulation sequence, and sends the first type of UE identity modulation sequence to the base station based on the guard band of the PRACH.
  • the UE sends the selected preamble sequence to the base station, and when receiving the random access RAR returned by the base station, sends an uplink to the base station based on the uplink transmission resource initially allocated by the base station carried in the RAR.
  • Transfer data information including:
  • the UE selects one preamble sequence from all the preamble sequences used for the contention random access of the camping cell, and sends the selected preamble sequence to the base station according to the PRACH;
  • the UE monitors the public PDSCH in real time, and determines that the uplink transmission resource initially allocated by the base station that is carried in the RAR is monitored according to the RAR that is broadcasted by the base station based on the common PDSCH in a preset first time.
  • the base station sends uplink transmission data information.
  • the UE determines that the contention-based random access is successful, based on the received transmission data response returned by the base station based on the uplink transmission data information, and includes:
  • the UE monitors the public PDSCH in real time, and determines that, when the base station monitors the transmission data response of the broadcast based on the common PDSCH in a preset second time, it is determined that the transmission data response is that the base station is receiving the When the uplink data information is transmitted, when the uplink transmission data information sent by other UEs is not received, it is determined that the contention random access is successful.
  • the method further comprises:
  • the uplink time synchronization with the base station is completed based on the uplink synchronization adjustment information carried in the RAR, and based on the related configuration information carried in the response of the transmission data,
  • the uplink transmission data information is processed accordingly.
  • a method for determining competitive random access includes:
  • the base station Receiving, by the base station, the preamble sequence sent by the UE, and determining, based on the UE identity information sent by the UE, that the UE identity information sent by the UE is not received at the time of receiving the UE identity information sent by the UE, a preamble sequence, the UE is allocated a corresponding uplink transmission resource, and the uplink transmission resource is carried in a random access response (RAR) and sent to the UE;
  • RAR random access response
  • the base station Receiving, by the base station, the uplink transmission data information that is sent by the UE according to the uplink transmission resource carried in the RAR, and generating a corresponding transmission data response to the UE according to the uplink transmission data information, and notifying the UE that the UE is competitively random.
  • the access was successful.
  • the method further comprises:
  • the base station determines, according to the UE identity information sent by the UE, that when receiving the UE identity information sent by the UE, and receiving the UE identity information sent by other UEs, the base station does not allocate the corresponding uplink transmission resource. And not sending the RAR to the UE.
  • a competitive random access device includes:
  • the triggering unit is configured to send its own UE identification information to the base station when the first time accessing the base station, and trigger a contention random access procedure;
  • a sending unit configured to send the selected preamble sequence to the base station, and send an uplink to the base station based on the uplink transmission resource initially allocated by the base station that is carried in the RAR when receiving the random access RAR returned by the base station Transmitting data information, wherein the RAR is that the base station determines that, when receiving the UE identity information sent by the UE, does not receive the UE identity information sent by other UEs, based on the preamble sequence, is the UE Returned after allocating the corresponding uplink transmission resource;
  • a determining unit configured to determine that the contention random access is successful based on the received transmission data response returned by the base station based on the uplink transmission data information.
  • the triggering unit is configured to:
  • the selected preamble sequence is sent to the base station, and when the random access RAR returned by the base station is received, the uplink transmission is sent to the base station based on the uplink transmission resource initially allocated by the base station carried in the RAR.
  • the sending unit is used to:
  • the real-time monitoring of the common PDSCH is performed, and when the RAR that is broadcasted by the base station based on the common PDSCH is monitored, the uplink transmission resource initially allocated by the base station that is carried in the RAR is sent to the The base station transmits uplink transmission data information.
  • the determining unit is configured to:
  • Detecting the public PDSCH in real time determining that, in a preset second time, when the base station listens to the broadcast data response based on the common PDSCH, determining that the transmission data response is that the base station is receiving the When the uplink data information is transmitted upstream, and the uplink transmission data information sent by other UEs is not received, it is determined that the contention random access is successful.
  • the determining unit is further configured to:
  • the uplink transmission data information is processed accordingly.
  • a determining device for competitive random access comprising:
  • a receiving unit configured to receive UE identification information sent by the user terminal UE, and determine that the UE enters a contention random access procedure
  • An allocating unit configured to receive a preamble sequence sent by the UE, and determine, according to the UE identity information sent by the UE, that the UE identity information sent by other UEs is not received at the time of receiving the UE identity information sent by the UE.
  • the UE allocates a corresponding uplink transmission resource based on the preamble sequence, and carries the uplink transmission resource in a random access response RAR, and sends the uplink transmission resource to the UE;
  • the response unit is configured to receive uplink transmission data information that is sent by the UE according to the uplink transmission resource carried in the RAR, and generate a corresponding transmission data response to send to the UE, according to the uplink transmission data information, to notify the UE competitive random access is successful.
  • the above allocation unit is further configured to:
  • the UE Determining, according to the UE identity information sent by the UE, that when receiving the UE identity information sent by the UE, and receiving the UE identity information sent by the other UE, the UE does not allocate the corresponding uplink transmission resource, and The RAR is not sent to the UE.
  • the UE can determine the UE that has collided according to the UE identification information sent by the UE, by using the method for the UE to send its own UE identification information to the base station, and when detecting the preamble sequence sent by the UE,
  • the uplink transmission resource may not be allocated to the UE that has collided, and the RAR is not required to be broadcast based on the PDSCH. Only the uplink transmission resource is allocated to the UE that has not collided, and the RAR is broadcasted based on the PDSCH, thereby avoiding the uplink transmission of the base station based on the PDSCH.
  • the resource is allocated to the UE that has collided, causing the problem of waste of uplink and downlink transmission resources, thereby improving the utilization of uplink and downlink transmission resources.
  • the base station uses the uplink transmission data information sent by the UE to determine the UE that collides again, that is, through two judgments, all collisions can be selected. The UE, thereby effectively reducing the probability of a UE colliding.
  • the UE identification information is subjected to a spreading process or a modulation process, and then the processed UE identification information is sent to the base station through the PRACH protection band, which can not only achieve low Power and low-interference transmission can also save PRACH resources.
  • FIG. 1 is a schematic diagram of an overview of a competitive random access method in the prior art
  • FIG. 2 is a schematic diagram of an overview of a contention random access method according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a method for a competitive random access method according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a function of a contention random access device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram showing the functional structure of a contention-based random access determining apparatus according to an embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced long term evolution
  • UMTS Universal Mobile Telecommunication System
  • the user equipment includes but is not limited to a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), a mobile phone (Mobile Telephone), a mobile phone (handset). And portable devices, etc., the user equipment can communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment can be a mobile phone (or "cellular"
  • RAN Radio Access Network
  • the user equipment can be a mobile phone (or "cellular"
  • the telephone device, the computer with wireless communication function, etc., the user equipment can also be a mobile device that is portable, pocket-sized, handheld, built-in, or in-vehicle.
  • a base station may refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), the invention is not limited.
  • BTS Base Transceiver Station
  • NodeB base station
  • NodeB evolved base station
  • LTE Long Term Evolutional Node B
  • the UE before the UE sends a preamble sequence to the base station, or the UE sends a preamble to the base station, in the embodiment of the present invention, the UE has a large collision probability and a low uplink and downlink transmission resource utilization. At the same time, the UE sends its own UE identity information to the base station. After receiving the UE identity information sent by the UE, the base station determines whether the UE has collided based on the UE identity information sent by the UE, and determines the UE.
  • the UE is allocated the corresponding uplink transmission resource, and is no longer based on the PDSCH broadcast RAR, and only allocates the corresponding uplink transmission resource for the UE that has not collided, thereby avoiding the base station assigning the uplink transmission resource to the UE that has collided based on the PDSCH.
  • the problem of waste of uplink and downlink transmission resources is increased, thereby improving the utilization rate of uplink and downlink transmission resources.
  • the specific process of the competitive random access method is as follows:
  • Step 200 When the UE accesses the base station for the first time, the UE sends its own UE identification information to the base station to trigger the contention random access procedure.
  • the UE can use the protection band of the PRACH to perform information transmission, and in addition, in order to implement low-power and low-level when the UE sends the UE identification information.
  • Interfering information transmission can be used but not limited to the following two transmission methods:
  • the first transmission mode the UE performs spreading processing on its own UE identification information, generates a corresponding UE identity spreading sequence, and transmits the UE identification spreading sequence to the base station based on the PRACH guard band.
  • the second transmission mode the UE modulates the UE identification information of the UE, generates a corresponding UE identity modulation sequence, and sends the UE identity modulation sequence to the base station based on the guard band of the PRACH.
  • the UE performs modulation processing on the UE identification information
  • the last four bits of the IMIS number 1 may be modulated by using, but not limited to, a Filter Bank Multi Carrier (FBMC) modulation method.
  • FBMC Filter Bank Multi Carrier
  • the foregoing UE identification information may be, but is not limited to, the simple identification information corresponding to the unique identification information of the different UEs.
  • the size of the UE identification information of the UE may be flexibly configured.
  • the unique identification information of the UE1 may be, but not limited to, the mobile phone number of the UE1, the International Mobile Subscriber Identity (IMIS) number, and the like.
  • the UE identification information of the corresponding UE1 may be, but not limited to, the UE1 mobile phone number. The last XX bit, the last XX bit of the IMIS number, and so on.
  • the transmission time of the UE transmitting its own UE identification information to the base station can be flexibly configured. That is, the UE can send its own UE identification information to the base station before transmitting the preamble sequence, or can also send the preamble sequence. Sending its own UE identification information to the base station.
  • the base station may determine, according to the currently received UE identity information of the UE, whether the UE has collided, and save the current determination result, and according to the received again
  • the method for determining whether the UE collides in the UE may be used in the following manner:
  • the base station Receiving, by the base station, the UE identity information sent by the UE, if it is determined that the UE identity information sent by another UE is received at the same time of receiving the UE identity information sent by the UE, determining that the UE has collided; if it is determined to be received When the UE identification information sent by the UE is not received at the same time, the UE does not collide.
  • the camping cell of UE1 is cell 1
  • the base station corresponding to cell 1 is base station A
  • the unique identifier information of UE1 is IMIS number 1
  • the corresponding UE identifier information of UE1 is the last 4 digits of IMIS number 1.
  • the first transmission mode UE1 performs spreading processing on the last 4 bits of the IMIS number 1 (ie, UE identification information), generates a corresponding spreading sequence 1, and transmits the spreading sequence 1 to the base station A based on the guard band of the PRACH. .
  • the second transmission mode UE1 adopts FBMC modulation mode, modulates the last 4 bits of IMIS number 1 (ie, UE identification information), generates a corresponding modulation sequence 1, and transmits modulation sequence 1 based on the guard band of PRACH.
  • Base station A UE1 adopts FBMC modulation mode, modulates the last 4 bits of IMIS number 1 (ie, UE identification information), generates a corresponding modulation sequence 1, and transmits modulation sequence 1 based on the guard band of PRACH.
  • Base station A Base station A.
  • the base station A receives the UE transmitted by the UE1 If the UE identification information sent by other UEs is not received at the same time, the UE1 is determined to have not collided; if the base station A receives the UE identification spread spectrum sequence 1 sent by the UE1, it receives other information. The UE identification information sent by the UE determines that the UE1 has collided.
  • Step 210 The UE sends the selected preamble sequence to the base station, and when receiving the random access RAR returned by the base station, sends uplink transmission data information to the base station based on the uplink transmission resource initially allocated by the base station that is carried in the RAR.
  • the RAR is that when the base station determines that the UE identification information transmitted by the UE is received, and does not receive the UE identification information sent by another UE, the base station returns the corresponding uplink transmission resource after the UE is allocated based on the preamble sequence. .
  • step 210 when step 210 is performed, the following steps may be adopted but are not limited to:
  • the UE selects a preamble sequence from all preamble sequences for the contention random access of the camping cell, and sends the selected preamble sequence to the base station based on the PRACH, and listens to the common PDSCH in real time.
  • the base station After detecting the preamble sequence sent by the UE, the base station determines, according to the result of the reservation, whether the UE does not collide, allocates a corresponding uplink transmission resource to the UE based on the preamble sequence sent by the UE, and adds the initial transmission resource.
  • the allocated uplink transmission resources, uplink synchronization adjustment information, and the like are carried in the RAR, and the above RAR is broadcast based on the above common PDSCH.
  • the base station determines that the UE has collided after the UE is determined based on the result of the reservation determination.
  • the UE allocates corresponding uplink transmission resources and does not broadcast RAR based on the public PDSCH.
  • the UE determines to transmit the RAR that is broadcasted by the base station based on the uplink transmission resource initially allocated by the base station that is carried by the RAR in the first time in the preset first time, and sends the unique carrier carrying the self to the base station.
  • the uplink transmission data information sent by the UE to the base station may be, but not limited to, Radio Resource Control (RRC) connection request information.
  • RRC Radio Resource Control
  • the UE listens to the RAR broadcast by the base station, it continues to send the uplink transmission data information to the base station.
  • the purpose is that the UE sends the simple identification information (ie, the UE identification information) to the base station.
  • the UEs have the same UE identity information, and the base station cannot accurately discover the situation of the UE that has collided.
  • the base station can further determine whether the UE has collided according to the uplink transmission data information sent by the UE, thereby ensuring the accuracy of the judgment, and further reducing the probability of the UE colliding.
  • the UE does not listen to the RAR broadcast by the base station in the preset first time, it directly determines that the contention random access fails, and continues to determine whether the number of times of the competitive random access failure is greater than a preset. Threshold, if so, Then, the contention-based random access is directly ended. Otherwise, the UE's own identity information is continuously sent to the base station, that is, the competitive random access procedure is continuously triggered.
  • the UE1 selects a preamble sequence from all the preamble sequences used for the contention random access of the cell 1 (ie, its own camping cell) (assumed to be The preamble sequence 1), based on the PRACH described above, transmits the preamble sequence 1 to the base station A, and starts listening to the common PDSCH.
  • the base station A After detecting the preamble sequence 1 sent by the UE1, the base station A determines that the UE1 has not collided based on the saved judgment result, allocates the uplink transmission resource 1 to the UE1 based on the preamble sequence 1, and transmits the uplink transmission resource 1 and the uplink synchronization adjustment information 1 And so on, which is carried in RAR1, and broadcasts RAR1 based on the above-mentioned public PDSCH.
  • the base station A determines that the UE1 has collided, the UE1 is not allocated the corresponding uplink transmission resource, and the RAR is not broadcast based on the common PDSCH.
  • the UE1 determines to transmit the uplink transmission data information carrying the IMIS number 1 (ie, unique identification information) to the base station A based on the uplink transmission resource 1 carried in the RAR1 when the RAR1 broadcasted by the base station A is monitored in the preset first time. 1 (assumed to be RRC Connection Request Information 1).
  • the UE1 If the UE1 does not listen to the RAR broadcasted by the base station A in the preset first time, it determines that the contention random access fails, and continues to determine that the number of times of the contention random access failure is less than a preset threshold. Sending its own UE identification information to the base station A, that is, continuing to trigger the contention random access procedure.
  • Step 220 The UE determines that the contention random access is successful based on the received transmission data response returned by the base station based on the uplink transmission data information.
  • step 220 when step 220 is performed, the following steps may be used but are not limited to:
  • the base station determines that the uplink transmission data information sent by other UEs is not received at the same time when the uplink transmission data information sent by the UE is received. That is, when it is determined that the UE has not collided, the uplink transmission data information transmitted by the UE is analyzed, and the related configuration information corresponding to the UE is configured based on the analyzed uplink transmission data information, and the uplink transmission data information is analyzed.
  • the parsing identification information corresponding to the unique identifier information of the UE and the related configuration information configured for the UE are carried in a transport data response indicating that the contention random access is successful, and the foregoing transport data response is broadcast based on the public PDSCH.
  • the base station will not be able to analyze the uplink transmission data information sent by the UE. At this time, the base station also broadcasts a transmission data response indicating the contention of the contention random access failure based on the common PDSCH.
  • the UE monitors the public PDSCH in real time, and determines that when the base station monitors the transmission data response of the public PDSCH broadcast according to the preset second time, it is determined that the transmission data response is determined by the base station to compete with the base station. Broadcast when the machine access is successful (no collision occurs), or broadcast when the base station determines the competitive random access failure (collision).
  • the UE If the UE does not listen to the transmission data response broadcast by the base station in the preset second time, it determines that the contention random access fails, and determines that the number of times of the contention random access failure is less than a preset threshold. And continuing to transmit the spreading sequence (or modulation sequence) corresponding to the UE identification information to the base station based on the guard band of the foregoing PRACH, that is, continuing to trigger the contention random access procedure.
  • the base station may also be the transmission data response returned by the base station based on the uplink transmission data information sent by other UEs. Therefore, in order to determine the foregoing transmission data response, the base station transmits the uplink transmission data based on itself. After the information is returned, the UE determines that the transmission data response is broadcasted by the base station after the base station determines that the contention of the contentive random access is successful, and needs to match the resolution identification information carried in the response of the transmission data with its unique identification information to determine that the matching is successful. In order to determine the success of competitive random access.
  • the base station A receives the RRC connection request information 1 carrying the IMIS number 1 sent by the UE1, and determines that the UE sends the RRC connection request information 1 sent by the UE1 at the same time.
  • the RRC connection request information 1 transmitted by the UE 1 is analyzed.
  • the base station A cannot parse the uplink transmission data information sent by the UE1. At this time, the base station A also broadcasts the transmission data response 1 indicating the contention of the contention random access failure based on the common PDSCH.
  • the base station A configures the corresponding RRC connection configuration information 1 for the UE1 based on the analyzed RRC connection request information 1, and the analysis number 1 corresponding to the IMIS number 1 (that is, the analysis identification information of the UE 1 obtained when the RRC connection request information 1 is analyzed)
  • the configuration information 1 is connected to the RRC, carried in the transmission data response 1, and the transmission data response 1 indicating the success of the contention random access based on the common PDSCH broadcast.
  • the UE1 monitors the public PDSCH in real time, and determines that when the transmission data response 1 broadcast by the base station A is monitored in the preset second time, it is determined that the transmission data response 1 is when the base station A determines that the contention random access is successful (no collision occurs). After the return, the resolution number 1 carried in the transmission data response 1 is matched with the IMIS number 1, and when the matching is successful, it is determined that the contention random access is successful.
  • the UE1 If the UE1 does not listen to the transmission data response 1 broadcast by the base station A in the preset second time, it determines that the contention random access fails, and determines that the number of times of the contention random access failure is less than a preset threshold.
  • the protection band of the PRACH is continued, the spreading sequence 1 (or the modulation sequence 1) corresponding to the last 4 bits of the IMIS number 1 is transmitted to the base station A, that is, the contention of the contention random access procedure is continued.
  • the UE may complete the uplink time synchronization with the foregoing base station based on the uplink synchronization adjustment information carried in the foregoing RAR, and based on the correlation configuration carried in the foregoing transmission data response. Set the information, and perform corresponding processing on the uplink transmission data information.
  • the UE1 determines that the contention-based random access is successful, the UE performs the uplink time synchronization with the base station A based on the uplink synchronization adjustment information 1 carried in the RAR1, and performs the RRC connection carried in the response 1 based on the transmission data.
  • Configuration information 1 completes the RRC connection with base station A.
  • Step 300 The UE1 performs spreading processing on the last 4 bits of the IMIS number 1, that is, the UE identification information, generates a corresponding spreading sequence 1, and transmits the spreading sequence 1 to the base station A based on the guard band of the PRACH.
  • the UE1 may also perform modulation processing on the last 4 bits of the IMIS number 1 (ie, UE identification information) by using the FBMC modulation mode, generate a corresponding modulation sequence 1, and send the modulation sequence 1 to the base station A based on the guard band of the PRACH. .
  • Step 301 (only the UE1 transmits the spreading sequence 1 as an example.)
  • the base station A determines whether the UE1 has collided (that is, if the spreading sequence transmitted by the UE1 is received). If the UE identification information sent by other UEs is not received at the same time, it is determined that the UE1 has not collided; if the UE identification information sent by other UEs is received at the same time of receiving the spreading sequence 1 sent by the UE1, it is determined. UE1 has collided) and saves the current judgment result.
  • Step 302 UE1 selects a preamble sequence (assuming preamble sequence 1) from all the preamble sequences used for contention random access of cell 1 (ie, its own camping cell), and based on the foregoing PRACH, the preamble sequence 1 Send to base station A and start listening to the above public PDSCH.
  • preamble sequence 1 assuming preamble sequence 1
  • Step 303 After detecting the preamble sequence 1 sent by the UE1, the base station A determines whether the UE1 has collided based on the saved judgment result. If yes, step 304 is performed; otherwise, step 305 is performed.
  • Step 304 The base station A does not allocate the corresponding uplink transmission resource for the UE1, and does not broadcast the RAR based on the public PDSCH.
  • Step 305 The base station A allocates the uplink transmission resource 1 to the UE1 based on the preamble sequence 1, and carries the uplink transmission resource 1, the uplink synchronization adjustment information 1 and the like in the RAR1, and broadcasts the RAR1 based on the common PDSCH.
  • Step 306 The UE1 determines whether the RAR1 broadcast by the base station A is monitored in the preset first time. If yes, step 307 is performed; otherwise, step 308 is performed.
  • Step 307 The UE1 sends, according to the uplink transmission resource 1 carried in the RAR1, the uplink transmission data information 1 (assumed to be the RRC connection request information 1) carrying the IMIS number 1 (ie, the unique identification information) to the base station A.
  • the uplink transmission data information 1 (assumed to be the RRC connection request information 1) carrying the IMIS number 1 (ie, the unique identification information) to the base station A.
  • Step 308 UE1 determines that the contention random access fails, and continues to determine whether the number of times of the contention random access failure is less than a preset threshold, and if so, sends its own UE identification information to the base station A (ie, continues to trigger the competitive random access). Into the process); otherwise, directly end the competitive random access.
  • Step 309 After detecting the RRC connection request information 1 carrying the IMIS number 1 sent by the UE1, the base station A determines whether the UE1 has collided. If yes, step 310 is performed; otherwise, step 311 is performed.
  • Step 310 The base station A broadcasts a transmission data response 1 indicating that the contention random access fails based on the common PDSCH.
  • Step 311 The base station A analyzes the RRC connection request information 1 sent by the UE1, and configures the corresponding RRC connection configuration information 1 for the UE1 based on the analyzed RRC connection request information 1.
  • Step 312 The base station A carries the resolution number 1 (that is, the resolution identification information of the UE1 obtained when the RRC connection request information 1 is parsed) and the RRC connection configuration information 1 in the transmission data response 1, and broadcasts the transmission data response based on the public PDSCH. 1.
  • Step 313 The UE1 monitors the public PDSCH in real time, and determines whether the transmission data response 1 broadcast by the base station A is monitored in the preset second time. If yes, step 314 is performed; otherwise, step 308 is performed.
  • Step 314 The UE1 determines, based on the monitored transmission data response 1, that the base station A determines that the contention random access succeeds (no collision occurs) when the data response 1 is transmitted, and the resolution number 1 carried in the data response 1 is transmitted.
  • the IMIS number 1 is matched, it is determined that the matching is successful, and the self-competitive random access is determined to be successful.
  • Step 315 After determining that the contention random access is successful, the UE1 completes the uplink time synchronization with the base station A based on the uplink synchronization adjustment information 1 carried in the RAR1, and based on the RRC connection configuration information 1 carried in the response 1 of the transmission data, The RRC connection with the base station A is completed.
  • a device for competing random access includes at least:
  • the triggering unit 400 is configured to send its own UE identification information to the base station when the base station is first accessed, and trigger a contention random access procedure;
  • the sending unit 410 is configured to send the selected preamble sequence to the base station, and when receiving the RAR returned by the base station, send uplink transmission data information to the base station according to the uplink transmission resource initially allocated by the base station that is carried in the RAR, where
  • the RAR is that when the base station determines that the UE identification information transmitted by the UE is received, and does not receive the UE identification information sent by another UE, the base station allocates a corresponding uplink transmission resource based on the preamble sequence, and returns;
  • the determining unit 420 is configured to determine that the contention random access is successful based on the received transmission data response returned by the base station based on the uplink transmission data information.
  • the triggering unit 400 is configured to:
  • the selected preamble sequence is sent to the base station, and when the RAR returned by the base station is received, based on the uplink transmission resource initially allocated by the base station carried in the RAR, when the uplink transmission data information is sent to the base station, the sending is performed.
  • Unit 410 is used to:
  • the determining unit 420 is configured to:
  • Detecting the PDSCH in real time determining that, in a preset second time, when the base station monitors the transmission data response of the broadcast based on the PDSCH, determining that the transmission data response is the time when the base station receives the uplink transmission data information, After receiving the uplink transmission data information sent by other UEs, it is determined that the contention random access is successful.
  • the determining unit 420 is further configured to:
  • the uplink time synchronization with the foregoing base station is completed based on the uplink synchronization adjustment information carried in the RAR, and the uplink transmission data information is used based on the related configuration information carried in the response of the data transmission. Perform the appropriate processing.
  • a device for determining a contention random access includes at least:
  • the receiving unit 500 is configured to receive UE identification information sent by the user terminal UE, and determine that the UE enters a contention random access procedure;
  • the allocating unit 510 is configured to receive the preamble sequence sent by the UE, and determine, based on the UE identity information sent by the UE, that the UE identity information sent by other UEs is not received when the UE identity information sent by the UE is received, And allocating a corresponding uplink transmission resource to the UE according to the foregoing preamble sequence, and carrying the uplink transmission resource in a random access response RAR, and sending the uplink transmission resource to the UE;
  • the response unit 520 is configured to receive the uplink transmission data information that is sent by the UE according to the uplink transmission resource carried in the RAR, and generate a corresponding transmission data response to send to the UE according to the uplink transmission data information, to notify the UE that the contention is random. The access was successful.
  • the foregoing allocating unit 510 is further configured to:
  • the UE Determining, based on the UE identity information sent by the UE, that when receiving the UE identity information sent by the UE, and receiving the UE identity information sent by other UEs, the UE does not allocate the corresponding uplink transmission resource, and does not The UE sends the RAR.
  • the UE before transmitting the preamble sequence to the base station, or transmitting the preamble sequence to the base station, the UE sends the UE identification information to the base station, which is used to trigger the contention random access procedure.
  • the UE can determine the UE that has collided according to the UE identification information sent by the UE, and the base station can no longer be used when detecting the preamble sequence sent by the UE.
  • the UE that has collided allocates the uplink transmission resource, and does not need to broadcast the RAR based on the PDSCH. It only needs to allocate the uplink transmission resource for the UE that has not collided, and broadcasts the RAR based on the PDSCH, thereby avoiding that the base station allocates the uplink transmission resource to the PDSCH based on the PDSCH.
  • the collision of the UE causes a problem of waste of uplink and downlink transmission resources, thereby improving the utilization of uplink and downlink transmission resources.
  • the base station uses the uplink transmission data information sent by the UE to determine the UE that collides again, that is, through two judgments, all collisions can be selected. The UE, thereby effectively reducing the probability of a UE colliding.
  • the UE identification information is subjected to a spreading process or a modulation process, and then the processed UE identification information is sent to the base station through the PRACH protection band, which can not only achieve low Power and low-interference transmission can also save the PRACH resources.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

公开了一种竞争式随机接入的方法及装置，用以降低UE碰撞概率，提高上下行传输资源利用率。该方法为：UE向基站发送自身的UE标识信息，再向基站发送前导序列，接收到基站返回的RAR时，向基站发送上行传输数据信息，并基于接收到的基站返回的传输数据响应，判定竞争式随机接入成功。这样，基站就可以根据UE发送的UE标识信息，确定该UE是否发生了碰撞，且对已发生碰撞的UE不返回RAR，从而避免了由于基于PDSCH将上行传输资源分配给已发生碰撞的UE，造成上下行传输资源浪费的问题，提高了上下行传输资源的利用率。

Description

一种竞争式随机接入的方法及装置
本申请要求在2016年3月25日提交中国专利局、申请号为201610180469.7、发明名称为“一种竞争式随机接入的方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信技术领域，尤其涉及一种竞争式随机接入的方法及装置。
背景技术
在第四代通信技术长期演进系统(Long Term Evolution，LTE)中，为了取得用户终端(User Equipment，UE)与基站的上行同步，以实现UE的上行传输，竞争式随机接入过程是UE初始接入基站时不可缺少的过程，参阅图1所示，竞争式随机接入过程主要有以下四个步骤：
首先，UE从驻留小区的所有用于竞争式随机接入的前导序列中，选取一个前导序列，并基于物理随机接入信道(Physical Random Access Channel，PRACH)，将上述选取的前导序列发送给基站。
然后，基站检测到UE发送的前导序列后，基于物理下行链路共享信道(Physical Downlink Shared Channel，PDSCH)，发送随机接入响应(Random Access Response，RAR)，其中，上述RAR中至少包括：初始分配的物理上行链路共享信道(Physical Uplink Shared Channel，PUSCH)。
其次，UE接收到基站发送的RAR后，基于上述RAR中携带的PUSCH，向基站发送携带有UE标识的传输信息。
最后，UE在设定的时间内接收到基站返回的竞争解决消息后，确定上述竞争解决消息中携带的UE标识，与自身上报给基站的UE标识相同时，判定随机接入成功，其中，若UE在设定的时间内没有接收到基站返回的竞争解决消息，则确定随机接入失败，并再次触发竞争式随机接入过程。
基于上述分析，上述竞争式随机接入过程中，由于UE发送的前导序列是从驻留小区的所有用于竞争式随机接入的前导序列中随机选取的，因此，可能存在多个UE选取的前导序列均相同，由于基站只能判断出检测到的前导序列是否被激活，无法确定选择该前导序列的UE是否发生了碰撞，这样，基站在分配PUSCH资源时，可能会将PUSCH资源分配给已发生碰撞的UE，不仅导致了PUSCH资源的浪费，而且，也消耗了基站发送RAR 时占用的PDSCH资源，即造成了PDSCH资源的浪费。
发明内容
本发明实施例提供了一种竞争式随机接入的方法及装置，用以解决现有技术中竞争式随机接入方法存在UE碰撞概率大、上下行传输资源利用率低的问题。
本发明实施例提供的具体技术方案如下：
一种竞争式随机接入的方法，包括：
UE首次接入基站时，向所述基站发送自身的UE标识信息，用于触发竞争式随机接入流程；
UE将选取的前导序列发送至基站，并在接收到基站返回的RAR时，基于所述RAR中携带的所述基站初始分配的上行传输资源，向所述基站发送上行传输数据信息，其中，所述RAR是所述基站判定在接收到所述UE发送的UE标识信息的时刻，未接收到其它UE发送的UE标识信息时，基于所述前导序列，为所述UE分配相应的上行传输资源后返回的；
UE基于接收到的所述基站基于所述上行传输数据信息返回的传输数据响应，判定竞争式随机接入成功。
较佳的，UE向所述基站发送自身的UE标识信息，包括：
UE对自身的UE标识信息进行扩频处理，生成相应的第一类UE标识扩频序列，并基于物理随机接入信道PRACH的保护带，将所述第一类UE标识扩频序列发送至所述基站；或者，
UE对自身的UE标识信息进行调制处理，生成相应的第一类UE标识调制序列，并基于所述PRACH的保护带，将所述第一类UE标识调制序列发送至所述基站。
较佳的，UE将选取的前导序列发送至基站，并在接收到基站返回的随机接入RAR时，基于所述RAR中携带的所述基站初始分配的上行传输资源，向所述基站发送上行传输数据信息，包括：
UE从驻留小区的所有用于竞争式随机接入的前导序列中，选取一个前导序列，并基于所述PRACH，将选取的前导序列发送至所述基站；
UE实时监听公共PDSCH，确定在预设的第一时间内，监听到所述基站基于所述公共PDSCH，广播的RAR时，基于所述RAR中携带的所述基站初始分配的上行传输资源，向所述基站发送上行传输数据信息。
较佳的，UE基于接收到的所述基站基于所述上行传输数据信息返回的传输数据响应，判定竞争式随机接入成功，包括：
UE实时监听所述公共PDSCH，确定在预设的第二时间内，监听到所述基站基于所述公共PDSCH，广播的传输数据响应时，确定所述传输数据响应是所述基站在接收到所述上行传输数据信息的时刻，未接收到其它UE发送的上行传输数据信息时返回的后，判定竞争式随机接入成功。
较佳的，进一步包括：
UE确定竞争式随机接入成功时，基于所述RAR中携带的上行同步调整信息，完成与所述基站之间的上行时间同步，并基于所述传输数据响应中携带的相关配置信息，对所述上行传输数据信息进行相应的处理。
一种竞争式随机接入的确定方法，包括：
基站接收用户终端UE发送的UE标识信息，确定所述UE进入竞争式随机接入流程；
基站接收所述UE发送的前导序列，并基于所述UE发送的UE标识信息，判定在接收到所述UE发送的UE标识信息的时刻，未接收到其它UE发送的UE标识信息时，基于所述前导序列，为所述UE分配相应的上行传输资源，并将所述上行传输资源携带在随机接入响应RAR中，发往所述UE；
基站接收所述UE基于所述RAR中携带的上行传输资源发送的上行传输数据信息，并基于所述上行传输数据信息，生成相应的传输数据响应发往所述UE，通知所述UE竞争式随机接入成功。
较佳的，进一步包括：
基站基于所述UE发送的UE标识信息，判定在接收到所述UE发送的UE标识信息的时刻，同时接收到其它UE发送的UE标识信息时，不为所述UE分配相应的上行传输资源，以及不向所述UE发送RAR。
一种竞争式随机接入的装置，包括：
触发单元，用于首次接入基站时，向所述基站发送自身的UE标识信息，触发竞争式随机接入流程；
发送单元，用于将选取的前导序列发送至基站，并在接收到基站返回的随机接入RAR时，基于所述RAR中携带的所述基站初始分配的上行传输资源，向所述基站发送上行传输数据信息，其中，所述RAR是所述基站判定在接收到所述UE发送的UE标识信息的时刻，未接收到其它UE发送的UE标识信息时，基于所述前导序列，为所述UE分配相应的上行传输资源后返回的；
判定单元，用于基于接收到的所述基站基于所述上行传输数据信息返回的传输数据响应，判定竞争式随机接入成功。
较佳的，向所述基站发送自身的UE标识信息时，所述触发单元用于：
对自身的UE标识信息进行扩频处理，生成相应的第一类UE标识扩频序列，并基于 物理随机接入信道PRACH的保护带，将所述第一类UE标识扩频序列发送至所述基站；或者，
对自身的UE标识信息进行调制处理，生成相应的第一类UE标识调制序列，并基于所述PRACH的保护带，将所述第一类UE标识调制序列发送至所述基站。
较佳的，将选取的前导序列发送至基站，并在接收到基站返回的随机接入RAR时，基于所述RAR中携带的所述基站初始分配的上行传输资源，向所述基站发送上行传输数据信息时，所述发送单元用于：
从驻留小区的所有用于竞争式随机接入的前导序列中，选取一个前导序列，并基于所述PRACH，将选取的前导序列发送至所述基站；
实时监听公共PDSCH，确定在预设的第一时间内，监听到所述基站基于所述公共PDSCH，广播的RAR时，基于所述RAR中携带的所述基站初始分配的上行传输资源，向所述基站发送上行传输数据信息。
较佳的，基于接收到的所述基站基于所述上行传输数据信息返回的传输数据响应，判定竞争式随机接入成功时，所述判定单元用于：
实时监听所述公共PDSCH，确定在预设的第二时间内，监听到所述基站基于所述公共PDSCH，广播的传输数据响应时，确定所述传输数据响应是所述基站在接收到所述上行传输数据信息的时刻，未接收到其它UE发送的上行传输数据信息时返回的后，判定竞争式随机接入成功。
较佳的，所述判定单元进一步用于：
确定竞争式随机接入成功时，基于所述RAR中携带的上行同步调整信息，完成与所述基站之间的上行时间同步，并基于所述传输数据响应中携带的相关配置信息，对所述上行传输数据信息进行相应的处理。
一种竞争式随机接入的确定装置，包括：
接收单元，用于接收用户终端UE发送的UE标识信息，确定所述UE进入竞争式随机接入流程；
分配单元，用于接收所述UE发送的前导序列，并基于所述UE发送的UE标识信息，判定在接收到所述UE发送的UE标识信息的时刻，未接收到其它UE发送的UE标识信息时，基于所述前导序列，为所述UE分配相应的上行传输资源，并将所述上行传输资源携带在随机接入响应RAR中，发往所述UE；
响应单元，用于接收所述UE基于所述RAR中携带的上行传输资源发送的上行传输数据信息，并基于所述上行传输数据信息，生成相应的传输数据响应发往所述UE，通知所述UE竞争式随机接入成功。
较佳的，上述分配单元进一步用于：
基于所述UE发送的UE标识信息，判定在接收到所述UE发送的UE标识信息的时刻，同时接收到其它UE发送的UE标识信息时，不为所述UE分配相应的上行传输资源，以及不向所述UE发送RAR。
本发明实施例的有益效果如下：
本发明实施例中，通过采用UE向基站发送自身的UE标识信息的方法，基站就能够根据上述UE发送的UE标识信息，确定已发生碰撞的UE，在检测到UE发送的前导序列时，就可以不再为已发生碰撞的UE分配上行传输资源，也无需基于PDSCH广播RAR，只需为未发生碰撞的UE分配上行传输资源，并基于PDSCH广播RAR，从而避免了由于基站基于PDSCH将上行传输资源分配给已发生碰撞的UE，造成上下行传输资源浪费的问题，进而提高了上下行传输资源的利用率。除此之外，基站在通过UE发送的UE标识信息确定发生碰撞的UE后，利用UE发送的上行传输数据信息，再次确定发生碰撞的UE，即通过两次判断，可以筛选出所有发生碰撞的UE，从而有效地降低了UE发生碰撞的概率。
进一步地，在向基站发送自身的UE标识信息之前，先对自身的UE标识信息进行扩频处理或者调制处理，再将处理后的UE标识信息通过PRACH的保护带发送至基站，不仅能够实现低功率、低干扰的发送，还可以节省PRACH资源。
附图说明
图1为现有技术中竞争式随机接入方法的概况示意图；
图2为本发明实施例中竞争式随机接入方法的概况示意图；
图3为本发明实施例中竞争式随机接入方法的具体流程示意图；
图4为本发明实施例中竞争式随机接入装置的功能结构示意图；
图5为本发明实施例中竞争式随机接入确定装置的功能结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
应理解，本发明的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution， LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)等。
还应理解，在本发明实施例中，用户设备(User Equipment，UE)包括但不限于移动台(Mobile Station，MS)、移动终端(Mobile Terminal)、移动电话(Mobile Telephone)、手机(handset)及便携设备(portable equipment)等，该用户设备可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，例如，用户设备可以是移动电话(或称为“蜂窝”电话)、具有无线通信功能的计算机等，用户设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
在本发明实施例中，基站(例如，接入点)可以是指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，本发明并不限定。
为了解决现有技术中竞争式随机接入方法存在UE碰撞概率大、上下行传输资源利用率低的问题，本发明实施例中，在UE向基站发送前导序列之前，或者在UE向基站发送前导序列的同时，UE向基站发送自身的UE标识信息，基站接收到上述UE发送的UE标识信息后，就会基于上述UE发送的UE标识信息，判断上述UE是否发生了碰撞，并在确定上述UE发生了碰撞后(即在接收到上述UE发送的UE标识信息的时刻，也接收到其它UE发送的UE标识信息，判定上述UE发生了碰撞)，接收到上述UE发送的前导序列时，不再为上述UE分配相应的上行传输资源，也不再基于PDSCH广播RAR，只为未发生碰撞的UE分配相应的上行传输资源，从而避免了由于基站基于PDSCH将上行传输资源分配给已发生碰撞的UE，造成上下行传输资源浪费的问题，进而提高了上下行传输资源的利用率。
下面通过具体实施例对本发明方案进行详细描述，当然，本发明并不限于以下实施例。
参阅图2所示，本发明实施例中，竞争式随机接入方法的具体流程如下：
步骤200：UE首次接入基站时，向上述基站发送自身的UE标识信息，用于触发竞争式随机接入流程。
较佳的，为了节省PRACH资源，在UE向基站发送自身的UE标识信息时，可以利用PRACH的保护带进行信息传输，除此之外，为了在UE发送UE标识信息时，实现低功率、低干扰的信息传输，可以采用但不限于以下两种传输方式：
第一种传输方式：UE对自身的UE标识信息进行扩频处理，生成相应的UE标识扩频序列，并基于PRACH的保护带，将上述UE标识扩频序列发送至上述基站。
第二种传输方式：UE对自身的UE标识信息进行调制处理，生成相应的UE标识调制序列，并基于上述PRACH的保护带，将上述UE标识调制序列发送至上述基站。其中，UE对UE标识信息进行调制处理时，可以采用但不限于：滤波器组多载波(Filter Bank Multi Carrier，FBMC)调制方法对IMIS号码1的后4位进行调制处理。
其中，为了节省传输资源(PRACH的保护带)，上述UE标识信息，可以是但不限于：区分不同UE的唯一标识信息对应的简易标识信息，具体地，UE的UE标识信息的大小可以灵活配置。例如：UE1的唯一标识信息可以是但不限于：UE1的手机号码，国际移动用户识别(International Mobile Subscriber Identity，IMIS)号码等等；对应的UE1的UE标识信息可以是但不限于：UE1手机号码的后XX位，IMIS号码的后XX位等等。
值得说的是，UE向基站发送自身的UE标识信息的发送时间可以灵活配置，也就是说，UE可以在发送前导序列之前，向基站发送自身的UE标识信息，也可以在发送前导序列的同时，向基站发送自身的UE标识信息。
进一步地，基站在接收到UE发送的UE标识信息后，就可以根据当前接收到的上述UE的UE标识信息，判断上述UE是否发生了碰撞，并保存当前的判断结果，以及根据再次接收到的上述UE再次发送的UE标识信息，实时更新保存的判断结果，具体地，判断上述UE是否发生碰撞的方式可以采用但不限于以下方式：
基站接收上述UE发送的UE标识信息，若确定在接收到上述UE发送的UE标识信息的同一时刻，也接收到了其它UE发送的UE标识信息，则判定上述UE已发生碰撞；若确定在接收到上述UE发送的UE标识信息的同一时刻，未接收到其它UE发送的UE标识信息，则判定上述UE未发生碰撞。
例如：假设UE1的驻留小区为小区1，小区1对应的基站为基站A，其中，UE1的唯一标识信息是IMIS号码1，对应的UE1的UE标识信息是IMIS号码1的后4位。
UE1向基站A发送自身的UE标识信息时，可以采用但不限于以下两种方式：
第一种传输方式：UE1对IMIS号码1的后4位(即UE标识信息)进行扩频处理，生成相应的扩频序列1，并基于PRACH的保护带，将扩频序列1发送至基站A。
第二种传输方式：UE1采用FBMC调制方式，对IMIS号码1的后4位(即UE标识信息)进行调制处理，生成相应的调制序列1，并基于PRACH的保护带，将调制序列1发送至基站A。
进一步地，(仅以第一种传输方式为例进行说明)若基站A在接收到UE1发送的UE 标识扩频序列1的同一时刻，未接收到其它UE发送的UE标识信息，则判定UE1未发生碰撞；若基站A在接收到UE1发送的UE标识扩频序列1的同一时刻，也接收到了其它UE发送的UE标识信息，则判定UE1已发生碰撞。
步骤210：UE将选取的前导序列发送至基站，并在接收到基站返回的随机接入RAR时，基于上述RAR中携带的上述基站初始分配的上行传输资源，向上述基站发送上行传输数据信息，其中，上述RAR是上述基站判定在接收到上述UE发送的UE标识信息的时刻，未接收到其它UE发送的UE标识信息时，基于上述前导序列，为上述UE分配相应的上行传输资源后返回的。
具体地，执行步骤210时，可以采用但不限于以下步骤：
首先，UE从驻留小区的所有用于竞争式随机接入的前导序列中，选取一个前导序列，并基于上述PRACH，将选取的前导序列发送至上述基站，以及实时监听公共PDSCH。
然后，基站检测到上述UE发送的前导序列后，基于上述保留的判断结果，确定上述UE未发生碰撞时，基于上述UE发送的前导序列，为上述UE分配相应的上行传输资源，并将上述初始分配的上行传输资源，上行同步调整信息等等携带在RAR中，以及基于上述公共PDSCH，广播上述RAR。
较佳的，为了避免由于基站基于PDSCH将上行传输资源分配给已发生碰撞的UE，造成上下行传输资源浪费的问题，基站基于上述保留的判断结果，确定上述UE发生了碰撞后，不为上述UE分配相应的上行传输资源，也不基于公共PDSCH广播RAR。
最后，UE确定在预设的第一时间内，监听到上述基站基于上述公共PDSCH广播的RAR时，基于上述RAR中携带的上述基站初始分配的上行传输资源，向上述基站发送携带有自身的唯一标识信息的上行传输数据信息。其中，上述UE向上述基站发送的上行传输数据信息可以是但不限于：无线资源控制(Radio Resource Control，RRC)连接请求信息。
值得说的是，UE在监听到基站广播的RAR后，继续向基站发送上行传输数据信息的目的是：由于UE向基站发送的是简易标识信息(即UE标识信息)，所以，可能存在由于多个UE的UE标识信息均相同，导致基站不能准确发现已发生碰撞的UE的情况，而且，还可能存在由于UE未向基站发送自身的UE标识信息，导致基站未发现该UE已发生碰撞的情况，所以，基站可以根据UE发送的上行传输数据信息，进一步判断上述UE是否发生了碰撞，保证了判断的准确性，同时，也进一步地降低了UE发生碰撞的概率。
较佳的，若UE在预设的第一时间内，未监听到上述基站广播的RAR，则直接判定竞争式随机接入失败，并继续判断竞争式随机接入失败的次数是否大于预设的阈值，若是， 则直接结束竞争式随机接入，否则，继续向基站发送自身的UE标识信息，即继续触发竞争式随机接入流程。
例如：继续沿用上例，UE1向基站A发送扩频序列1之后，从小区1(即自身的驻留小区)的所有用于竞争式随机接入的前导序列中，选取一个前导序列(假设为前导序列1)，并基于上述PRACH，将前导序列1发送至基站A，以及开始监听上述公共PDSCH。
基站A检测到UE1发送的前导序列1后，基于保存的判断结果，确定UE1未发生碰撞后，基于前导序列1，为UE1分配上行传输资源1，并将上行传输资源1，上行同步调整信息1等等携带在RAR1中，以及基于上述公共PDSCH，广播RAR1。
其中，若基站A确定UE1发生了碰撞，则不为UE1分配相应的上行传输资源，也不基于公共PDSCH广播RAR。
UE1确定在预设的第一时间内，监听到基站A广播的RAR1时，基于RAR1中携带的上行传输资源1，向基站A发送携带有IMIS号码1(即唯一标识信息)的上行传输数据信息1(假设为RRC连接请求信息1)。
其中，若UE1在预设的第一时间内，未监听到基站A广播的RAR，则判定竞争式随机接入失败，并在确定竞争式随机接入失败的次数小于预设的阈值时，继续向基站A发送自身的UE标识信息，即继续触发竞争式随机接入流程。
步骤220：UE基于接收到的上述基站基于上述上行传输数据信息返回的传输数据响应，判定竞争式随机接入成功。
具体地，执行步骤220时，可以采用但不限于以下步骤：
首先，基站接收到上述UE发送的携带有唯一标识信息的上行传输数据信息后，确定在接收到上述UE发送的上行传输数据信息的同一时刻，未接收到其它UE发送的上行传输数据信息时(即判定上述UE未发生碰撞时)，解析上述UE发送的上行传输数据信息，并基于解析后的上行传输数据信息，为上述UE配置对应的相关配置信息，以及将解析上行传输数据信息时获得的对应于上述UE的唯一标识信息的解析标识信息，和为上述UE配置的相关配置信息，携带在表征竞争式随机接入成功的传输数据响应中，基于公共PDSCH广播上述传输数据响应。
其中，若上述UE发生了碰撞，则上述基站将无法解析上述UE发送的上行传输数据信息，此时，上述基站也会基于公共PDSCH，广播表征竞争式随机接入失败的传输数据响应。
然后，UE实时监听上述公共PDSCH，确定在预设的第二时间内，监听到上述基站基于上述公共PDSCH广播的传输数据响应时，判断上述传输数据响应是基站确定竞争式随 机接入成功(未发生碰撞)时广播的，还是基站确定竞争式随机接入失败(发生碰撞)时广播的。
其中，若UE在预设的第二时间内，未监听到上述基站广播的传输数据响应，则判定竞争式随机接入失败，并在确定竞争式随机接入失败的次数小于预设的阈值时，继续基于上述PRACH的保护带，向基站发送自身的UE标识信息对应的扩频序列(或者调制序列)，即继续触发竞争式随机接入流程。
最后，由于UE在公共PDSCH监听到的传输数据响应，也可能是基站基于其他UE发送的上行传输数据信息返回的传输数据响应，所以，为了确定上述传输数据响应是基站基于自身发送的上行传输数据信息返回的，UE在确定上述传输数据响应是基站确定竞争式随机接入成功时广播的后，需要将上述传输数据响应中携带的解析标识信息与自身的唯一标识信息进行匹配，确定匹配成功时，才能判定竞争式随机接入成功。
例如：继续沿用上例，基站A接收到UE1发送的携带有IMIS号码1的RRC连接请求信息1后，确定在接收到UE1发送的RRC连接请求信息1的同一时刻，未接收到其它UE发送的上行传输数据信息时(即判定UE1未发生碰撞时)，解析UE1发送的RRC连接请求信息1。
其中，若UE1发生了碰撞，则基站A将无法解析UE1发送的上行传输数据信息，此时，基站A也会基于公共PDSCH，广播表征竞争式随机接入失败的传输数据响应1。
基站A基于解析后的RRC连接请求信息1，为UE1配置对应的RRC连接配置信息1，并将IMIS号码1对应的解析号码1(即解析RRC连接请求信息1时获得的UE1的解析标识信息)和RRC连接配置信息1，携带在传输数据响应1中，以及基于公共PDSCH广播表征竞争式随机接入成功的传输数据响应1。
UE1实时监听上述公共PDSCH，确定在预设的第二时间内，监听到基站A广播的传输数据响应1时，判定传输数据响应1是基站A确定竞争式随机接入成功(未发生碰撞)时返回的后，将传输数据响应1中携带的解析号码1与IMIS号码1进行匹配，确定匹配成功时，判定自身竞争式随机接入成功。
其中，若UE1在预设的第二时间内，未监听到基站A广播的传输数据响应1，则判定竞争式随机接入失败，并在确定竞争式随机接入失败的次数小于预设的阈值时，继续PRACH的保护带，向基站A发送IMIS号码1的后4位对应的扩频序列1(或者调制序列1)，即继续触发竞争式随机接入流程。
进一步地，UE确定竞争式随机接入成功时，可以基于上述RAR中携带的上行同步调整信息，完成与上述基站之间的上行时间同步，并基于上述传输数据响应中携带的相关配 置信息，对上述上行传输数据信息进行相应的处理。
例如：继续沿用上例，UE1确定竞争式随机接入成功时，基于RAR1中携带的上行同步调整信息1，完成与基站A之间的上行时间同步，并基于传输数据响应1中携带的RRC连接配置信息1，完成与基站A之间的RRC连接。
下面采用具体的应用场景对上述实施例作进一步详细说明，参阅图3所示，本发明实施例中，竞争式随机接入方法的具体流程如下：
步骤300：UE1对IMIS号码1的后4位(即UE标识信息)进行扩频处理，生成相应的扩频序列1，并基于PRACH的保护带，将扩频序列1发送至基站A。
其中，UE1还可以采用FBMC调制方式，对IMIS号码1的后4位(即UE标识信息)进行调制处理，生成相应的调制序列1，并基于PRACH的保护带，将调制序列1发送至基站A。
步骤301：(仅以UE1发送的是扩频序列1为例进行说明)基站A检测到UE1发送的扩频序列1后，判断UE1是否发生了碰撞(即若在接收到UE1发送的扩频序列1的同一时刻，未接收到其它UE发送的UE标识信息，则判定UE1未发生碰撞；若在接收到UE1发送的扩频序列1的同一时刻，接收到了其它UE发送的UE标识信息，则判定UE1发生了碰撞)，并保存当前的判断结果。
步骤302：UE1从小区1(即自身的驻留小区)的所有用于竞争式随机接入的前导序列中，选取一个前导序列(假设为前导序列1)，并基于上述PRACH，将前导序列1发送至基站A，以及开始监听上述公共PDSCH。
步骤303：基站A检测到UE1发送的前导序列1后，基于保存的判断结果，判断UE1是否发生了碰撞，若是，则执行步骤304；否则，执行步骤305。
步骤304：基站A不为UE1分配相应的上行传输资源，也不基于公共PDSCH广播RAR。
步骤305：基站A基于前导序列1，为UE1分配上行传输资源1，并将上行传输资源1，上行同步调整信息1等等携带在RAR1中，以及基于上述公共PDSCH，广播RAR1。
步骤306：UE1判断在预设的第一时间内，是否监听到基站A广播的RAR1，若是，则执行步骤307；否则，执行步骤308。
步骤307：UE1基于RAR1中携带的上行传输资源1，向基站A发送携带有IMIS号码1(即唯一标识信息)的上行传输数据信息1(假设为RRC连接请求信息1)。
步骤308：UE1判定竞争式随机接入失败，并继续判断竞争式随机接入失败的次数是否小于预设的阈值，若是，则向基站A发送自身的UE标识信息(即继续触发竞争式随机接入流程)；否则，直接结束竞争式随机接入。
步骤309：基站A检测到UE1发送的携带有IMIS号码1的RRC连接请求信息1后，判断UE1是否发生了碰撞，若是，则执行步骤310；否则执行步骤311。
步骤310：基站A基于公共PDSCH，广播表征竞争式随机接入失败的传输数据响应1。
步骤311：基站A解析UE1发送的RRC连接请求信息1，并基于解析后的RRC连接请求信息1，为UE1配置对应的RRC连接配置信息1。
步骤312：基站A将解析号码1(即解析RRC连接请求信息1时获得的UE1的解析标识信息)和RRC连接配置信息1，携带在传输数据响应1中，并基于公共PDSCH，广播传输数据响应1。
步骤313：UE1实时监听上述公共PDSCH，判断在预设的第二时间内，是否监听到基站A广播的传输数据响应1，若是，则执行步骤314；否则，执行步骤308。
步骤314：UE1基于监听到的传输数据响应1，确定传输数据响应1时基站A确定竞争式随机接入成功(未发生碰撞)时返回的后，将传输数据响应1中携带的解析号码1与IMIS号码1进行匹配，确定匹配成功时，判定自身竞争式随机接入成功。
步骤315：UE1确定竞争式随机接入成功后，基于RAR1中携带的上行同步调整信息1，完成与基站A之间的上行时间同步，并基于传输数据响应1中携带的RRC连接配置信息1，完成与基站A之间的RRC连接。
基于上述实施例，参阅图4所示，本发明实施例中，一种竞争式随机接入的装置，至少包括：
触发单元400，用于首次接入基站时，向上述基站发送自身的UE标识信息，触发竞争式随机接入流程；
发送单元410，用于将选取的前导序列发送至基站，并在接收到基站返回的RAR时，基于上述RAR中携带的上述基站初始分配的上行传输资源，向上述基站发送上行传输数据信息，其中，上述RAR是上述基站判定在接收到上述UE发送的UE标识信息的时刻，未接收到其它UE发送的UE标识信息时，基于上述前导序列，为上述UE分配相应的上行传输资源后返回的；
判定单元420，用于基于接收到的上述基站基于上述上行传输数据信息返回的传输数据响应，判定竞争式随机接入成功。
较佳的，向上述基站发送自身的UE标识信息时，上述触发单元400用于：
对自身的UE标识信息进行扩频处理，生成相应的第一类UE标识扩频序列，并基于物理随机接入信道PRACH的保护带，将上述第一类UE标识扩频序列发送至上述基站；或者，
对自身的UE标识信息进行调制处理，生成相应的第一类UE标识调制序列，并基于上述PRACH的保护带，将上述第一类UE标识调制序列发送至上述基站。
较佳的，将选取的前导序列发送至基站，并在接收到基站返回的RAR时，基于上述RAR中携带的上述基站初始分配的上行传输资源，向上述基站发送上行传输数据信息时，上述发送单元410用于：
从驻留小区的所有用于竞争式随机接入的前导序列中，选取一个前导序列，并基于上述PRACH，将选取的前导序列发送至上述基站；
实时监听公共PDSCH，确定在预设的第一时间内，监听到上述基站基于上述PDSCH，广播的RAR时，基于上述RAR中携带的上述基站初始分配的上行传输资源，向上述基站发送上行传输数据信息。
较佳的，基于接收到的上述基站基于上述上行传输数据信息返回的传输数据响应，判定竞争式随机接入成功时，上述判定单元420用于：
实时监听上述PDSCH，确定在预设的第二时间内，监听到上述基站基于上述PDSCH，广播的传输数据响应时，确定上述传输数据响应是上述基站在接收到上述上行传输数据信息的时刻，未接收到其它UE发送的上行传输数据信息时返回的后，判定竞争式随机接入成功。
较佳的，上述判定单元420进一步用于：
确定竞争式随机接入成功时，基于上述RAR中携带的上行同步调整信息，完成与上述基站之间的上行时间同步，并基于上述传输数据响应中携带的相关配置信息，对上述上行传输数据信息进行相应的处理。
基于上述实施例，参阅图5所示，本发明实施例中，一种竞争式随机接入的确定装置，至少包括：
接收单元500，用于接收用户终端UE发送的UE标识信息，确定上述UE进入竞争式随机接入流程；
分配单元510，用于接收上述UE发送的前导序列，并基于上述UE发送的UE标识信息，判定在接收到上述UE发送的UE标识信息的时刻，未接收到其它UE发送的UE标识信息时，基于上述前导序列，为上述UE分配相应的上行传输资源，并将上述上行传输资源携带在随机接入响应RAR中，发往上述UE；
响应单元520，用于接收上述UE基于上述RAR中携带的上行传输资源发送的上行传输数据信息，并基于上述上行传输数据信息，生成相应的传输数据响应发往上述UE，通知上述UE竞争式随机接入成功。
较佳的，上述分配单元510进一步用于：
基于上述UE发送的UE标识信息，判定在接收到上述UE发送的UE标识信息的时刻，同时接收到其它UE发送的UE标识信息时，不为上述UE分配相应的上行传输资源，以及不向上述UE发送RAR。
综上所述，本发明实施例中，在向基站发送前导序列之前，或者在向基站发送前导序列的同时，向上述基站发送自身的UE标识信息，用于触发竞争式随机接入流程，并将选取的前导序列发送至基站，在接收到基站返回的随机接入RAR时，基于上述RAR中携带的上述基站初始分配的上行传输资源，向上述基站发送上行传输数据信息，以及接收到上述基站基于上述上行传输数据信息返回的传输数据响应后，基于上述传输数据响应，确定上述基站在接收到上述上行传输数据信息的时刻，未接收到其它UE发送的上行传输数据信息，判定竞争式随机接入成功。这样，通过采用UE向基站发送自身的UE标识信息的方法，基站就能够根据上述UE发送的UE标识信息，确定已发生碰撞的UE，在检测到UE发送的前导序列时，就可以不再为已发生碰撞的UE分配上行传输资源，也无需基于PDSCH广播RAR，只需为未发生碰撞的UE分配上行传输资源，并基于PDSCH广播RAR，从而避免了由于基站基于PDSCH将上行传输资源分配给已发生碰撞的UE，造成上下行传输资源浪费的问题，进而提高了上下行传输资源的利用率。除此之外，基站在通过UE发送的UE标识信息确定发生碰撞的UE后，利用UE发送的上行传输数据信息，再次确定发生碰撞的UE，即通过两次判断，可以筛选出所有发生碰撞的UE，从而有效地降低了UE发生碰撞的概率。
进一步地，在向基站发送自身的UE标识信息之前，先对自身的UE标识信息进行扩频处理或者调制处理，再将处理后的UE标识信息通过PRACH的保护带发送至基站，不仅能够实现低功率、低干扰的发送，还可以节省述PRACH资源。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机 程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (14)

  1. 一种竞争式随机接入的方法，其特征在于，包括：
    用户终端UE首次接入基站时，向所述基站发送自身的UE标识信息，用于触发竞争式随机接入流程；
    UE将选取的前导序列发送至基站，并在接收到所述基站返回的随机接入响应RAR时，基于所述RAR中携带的所述基站初始分配的上行传输资源，向所述基站发送上行传输数据信息，其中，所述RAR是所述基站判定在接收到所述UE发送的UE标识信息的时刻，未接收到其它UE发送的UE标识信息时，基于所述前导序列，为所述UE分配相应的上行传输资源后返回的；
    UE基于接收到的所述基站基于所述上行传输数据信息返回的传输数据响应，判定竞争式随机接入成功。
  2. 如权利要求1所述的方法，其特征在于，UE向所述基站发送自身的UE标识信息，包括：
    UE对自身的UE标识信息进行扩频处理，生成相应的第一类UE标识扩频序列，并基于物理随机接入信道PRACH的保护带，将所述第一类UE标识扩频序列发送至所述基站；或者，
    UE对自身的UE标识信息进行调制处理，生成相应的第一类UE标识调制序列，并基于所述PRACH的保护带，将所述第一类UE标识调制序列发送至所述基站。
  3. 如权利要求1所述的方法，其特征在于，UE将选取的前导序列发送至基站，并在接收到基站返回的随机接入RAR时，基于所述RAR中携带的所述基站初始分配的上行传输资源，向所述基站发送上行传输数据信息，包括：
    UE从驻留小区的所有用于竞争式随机接入的前导序列中，选取一个前导序列，并基于所述PRACH，将选取的前导序列发送至所述基站；
    UE实时监听公共物理下行链路共享信道PDSCH，确定在预设的第一时间内，监听到所述基站基于所述公共PDSCH，广播的RAR时，基于所述RAR中携带的所述基站初始分配的上行传输资源，向所述基站发送上行传输数据信息。
  4. 如权利要求1所述的方法，其特征在于，UE基于接收到的所述基站基于所述上行传输数据信息返回的传输数据响应，判定竞争式随机接入成功，包括：
    UE实时监听所述公共PDSCH，确定在预设的第二时间内，监听到所述基站基于所述公共PDSCH，广播的传输数据响应时，确定所述传输数据响应是所述基站在接收到所述上行传输数据信息的时刻，未接收到其它UE发送的上行传输数据信息时返回的后，判定竞争式随机接入成功。
  5. 如权利要求1-4任一项所述的方法，其特征在于，进一步包括：
    UE确定竞争式随机接入成功时，基于所述RAR中携带的上行同步调整信息，完成与所述基站之间的上行时间同步，并基于所述传输数据响应中携带的相关配置信息，对所述上行传输数据信息进行相应的处理。
  6. 一种竞争式随机接入的确定方法，其特征在于，包括：
    基站接收用户终端UE发送的UE标识信息，确定所述UE进入竞争式随机接入流程；
    基站接收所述UE发送的前导序列，并基于所述UE发送的UE标识信息，判定在接收到所述UE发送的UE标识信息的时刻，未接收到其它UE发送的UE标识信息时，基于所述前导序列，为所述UE分配相应的上行传输资源，并将所述上行传输资源携带在随机接入响应RAR中，发往所述UE；
    基站接收所述UE基于所述RAR中携带的上行传输资源发送的上行传输数据信息，并基于所述上行传输数据信息，生成相应的传输数据响应发往所述UE，通知所述UE竞争式随机接入成功。
  7. 如权利要求6所述的方法，其特征在于，进一步包括：
    基站基于所述UE发送的UE标识信息，判定在接收到所述UE发送的UE标识信息的时刻，同时接收到其它UE发送的UE标识信息时，不为所述UE分配相应的上行传输资源，以及不向所述UE发送RAR。
  8. 一种竞争式随机接入的装置，其特征在于，包括：
    触发单元，用于首次接入基站时，向所述基站发送自身的UE标识信息，触发竞争式随机接入流程；
    发送单元，用于将选取的前导序列发送至基站，并在接收到基站返回的随机接入RAR时，基于所述RAR中携带的所述基站初始分配的上行传输资源，向所述基站发送上行传输数据信息，其中，所述RAR是所述基站判定在接收到所述UE发送的UE标识信息的时刻，未接收到其它UE发送的UE标识信息时，基于所述前导序列，为所述UE分配相应的上行传输资源后返回的；
    判定单元，用于基于接收到的所述基站基于所述上行传输数据信息返回的传输数据响应，判定竞争式随机接入成功。
  9. 如权利要求8所述的装置，其特征在于，向所述基站发送自身的UE标识信息时，所述触发单元用于：
    对自身的UE标识信息进行扩频处理，生成相应的第一类UE标识扩频序列，并基于物理随机接入信道PRACH的保护带，将所述第一类UE标识扩频序列发送至所述基站；或者，
    对自身的UE标识信息进行调制处理，生成相应的第一类UE标识调制序列，并基于所述PRACH的保护带，将所述第一类UE标识调制序列发送至所述基站。
  10. 如权利要求8所述的装置，其特征在于，将选取的前导序列发送至基站，并在接收到基站返回的随机接入RAR时，基于所述RAR中携带的所述基站初始分配的上行传输资源，向所述基站发送上行传输数据信息时，所述发送单元用于：
    从驻留小区的所有用于竞争式随机接入的前导序列中，选取一个前导序列，并基于所述PRACH，将选取的前导序列发送至所述基站；
    实时监听公共物理下行链路共享信道PDSCH，确定在预设的第一时间内，监听到所述基站基于所述公共PDSCH，广播的RAR时，基于所述RAR中携带的所述基站初始分配的上行传输资源，向所述基站发送上行传输数据信息。
  11. 如权利要求8所述的装置，其特征在于，基于接收到的所述基站基于所述上行传输数据信息返回的传输数据响应，判定竞争式随机接入成功时，所述判定单元用于：
    实时监听所述公共PDSCH，确定在预设的第二时间内，监听到所述基站基于所述公共PDSCH，广播的传输数据响应时，确定所述传输数据响应是所述基站在接收到所述上行传输数据信息的时刻，未接收到其它UE发送的上行传输数据信息时返回的后，判定竞争式随机接入成功。
  12. 如权利要求8-11任一项所述的装置，其特征在于，所述判定单元进一步用于：
    确定竞争式随机接入成功时，基于所述RAR中携带的上行同步调整信息，完成与所述基站之间的上行时间同步，并基于所述传输数据响应中携带的相关配置信息，对所述上行传输数据信息进行相应的处理。
  13. 一种竞争式随机接入的确定装置，其特征在于，包括：
    接收单元，用于接收用户终端UE发送的UE标识信息，确定所述UE进入竞争式随机接入流程；
    分配单元，用于接收所述UE发送的前导序列，并基于所述UE发送的UE标识信息，判定在接收到所述UE发送的UE标识信息的时刻，未接收到其它UE发送的UE标识信息时，基于所述前导序列，为所述UE分配相应的上行传输资源，并将所述上行传输资源携带在随机接入响应RAR中，发往所述UE；
    响应单元，用于接收所述UE基于所述RAR中携带的上行传输资源发送的上行传输数据信息，并基于所述上行传输数据信息，生成相应的传输数据响应发往所述UE，通知所述UE竞争式随机接入成功。
  14. 如权利要求13所述的确定装置，其特征在于，所述分配单元进一步用于：
    基于所述UE发送的UE标识信息，判定在接收到所述UE发送的UE标识信息的时刻，同时接收到其它UE发送的UE标识信息时，不为所述UE分配相应的上行传输资源，以及不向所述UE发送RAR。
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