WO2015096775A1 - 一种随机接入的干扰控制方法、设备及系统 - Google Patents

一种随机接入的干扰控制方法、设备及系统 Download PDF

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Publication number
WO2015096775A1
WO2015096775A1 PCT/CN2014/094955 CN2014094955W WO2015096775A1 WO 2015096775 A1 WO2015096775 A1 WO 2015096775A1 CN 2014094955 W CN2014094955 W CN 2014094955W WO 2015096775 A1 WO2015096775 A1 WO 2015096775A1
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WIPO (PCT)
Prior art keywords
base station
random access
channel
preamble
indicator channel
Prior art date
Application number
PCT/CN2014/094955
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English (en)
French (fr)
Inventor
周涵
花梦
铁晓磊
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP14874439.4A priority Critical patent/EP3089521A4/en
Publication of WO2015096775A1 publication Critical patent/WO2015096775A1/zh
Priority to US15/192,626 priority patent/US20160308635A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/005—Interference mitigation or co-ordination of intercell interference
    • H04J11/0053—Interference mitigation or co-ordination of intercell interference using co-ordinated multipoint transmission/reception
    • 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
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • 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 invention relates to the field of communication technologies, and in particular, to a random access interference control method, device and system.
  • HetNet Heterogeneous Network
  • UMTS R12 Universal Mobile Telecommunications System
  • HetNet is a multi-level networking wireless access network technology. Compared with the traditional radio access network, HetNet adds one or more micro network layers to the macro network layer. The base stations in the micro network are also called micro stations or low power nodes (LPNs). Compared with single macro network expansion, heterogeneous networks have the advantages of low cost, easy deployment and maintenance, and are hotspots in current wireless communication research.
  • the rated transmit power of the macro station and the micro station in HetNet are different, which will cause interference problems in the RACH (Random Access Channel) random access process: in HetNet, for the macro station
  • the preamble random access preamble
  • the preamble sent by the UE will cause burst interference to the micro station.
  • the burst interference may cause the uplink data transmission of the UE in the micro-station to be incorrectly received by the base station, which generates a transient error block and affects the throughput rate of the micro-station.
  • the RNC Radio Network Controller
  • SIRtarget target signal to noise ratio
  • the rise of UE power will cause the micro-RoT RoT (thermal noise level) to increase, affecting the uplink capacity of the micro-station. Therefore, interference needs to be controlled during random access.
  • the interference control method for random access in the prior art is that the macro station informs the micro station of the preamble primary scrambling code broadcasted in the PRACH info (PRACH information) and the PRACH preamble control parameters of the current cell; the micro station tries The preamble of the UE (user equipment) is decoded, and the preamble sent by the macro station UE is used for interference cancellation.
  • the RACH Random Access Channel
  • Random access channel burst interference caused by the message part, and inform the RNC to remove the influence of the error caused by the preamble and the message in the outer loop power control, and avoid the uplink transmission of the UE by the outer loop power control. Power up.
  • the macro station directly reports the RACH UE to the RNC, and the RNC removes the error block caused by the interference of the UEs in the outer loop power control.
  • the prior art only solves the problem of how to eliminate the impact of the burst interference generated by the RACH UE on the external loop power control, and does not suppress the interference and solve the throughput impact caused by the sudden interference.
  • an embodiment of the present invention provides a method, device, and system for interference control of random access.
  • the technical solution is as follows:
  • the first aspect provides a random access interference control method, where the method includes: acquiring a primary scrambling code of a random access preamble broadcast by a radio network control device; and acquiring a random access preamble sent by the user equipment UE; Determining, according to the primary scrambling code of the broadcast random access preamble and the random access preamble sent by the UE, that the UE is a UE that camps on a first base station where a neighboring cell is located; to the UE The acquisition indicator channel is sent to indicate whether the UE can access uplink.
  • the method before the obtaining the random access preamble sent by the user equipment UE, the method further includes: receiving a random access preamble sent by the UE.
  • the acquiring, by the UE, an acquiring indicator channel, indicating that the UE is capable of uplink access includes: transmitting, to the UE, the acquisition indicator channel, where a slot format of the acquisition indicator channel includes an indication indication AI part, where the AI part uses a signature sequence corresponding to a random access preamble sent by the UE a signature sequence, such that when the UE detects that the signature sequence of the AI corresponds to a signature sequence of a random access preamble, the UE performs a decoding on the signature sequence of the AI, and determines whether to allow the The UE uplink access.
  • the method before the acquiring the random access preamble sent by the user equipment, the method further includes: receiving a random access preamble or a pair sent by the UE The random access preamble sent by the UE to the first base station is monitored.
  • the sending the indicator channel to the UE includes: evaluating a remaining resource; if there is a remaining resource, sending an acquiring indicator channel to the UE, where
  • the slot structure of the acquisition indicator channel includes an AI portion, and the AI portion is provided with a parameter value indicating whether to allow uplink access of the UE, so that the UE sends a random access message when allowed to access uplink.
  • the acquiring an indicator channel is sent to the UE, including using the acquiring The indicator channel is repeatedly transmitted using multiple time slots or transmission time intervals.
  • the method further includes: receiving a random access message sent by the UE; The random access message is forwarded to the radio network controller, so that the radio network controller controls the first base station to send a forward-imported access channel or a high-speed downlink shared channel to the UE.
  • the forwarding, by the forwarding, the random access message to the radio network controller includes: performing the random connection The incoming message is identified, and if it is the transmission destination of the random access message, the uplink is sent to the radio network controller according to the random access message.
  • the determining, by using the random access, the random access Determining, by the scrambling code used by the message, the destination of the random access message sent by the UE; or determining the sending destination of the random access message according to the indication information added by the control part of the random access message sent by the UE .
  • a second aspect provides a random access interference control method, where the method includes: sending a random access preamble, so that a second base station where a neighboring cell is located acquires the random access preamble, and the second The base station is the base station where the neighboring cell of the cell where the first base station is located, where the UE is located; receiving the acquisition indicator channel sent by the second base station; determining according to the indication of the acquisition indicator channel sent by the second base station Whether the second base station allows uplink access in the second base station, and if uplink access is allowed in the second base station, sends a random access message to the second base station.
  • the method before the sending the random access preamble, the method further includes: receiving a preamble signature sequence, the interference of the second base station broadcast by the radio network controller Code and acquisition indicator channel code channel, knowing that the first base station where it is located is configured to allow it to be located
  • the second base station uplink access is detected; the downlink channel quality of the second base station is detected to be higher than the uplink access threshold; the random access preamble is sent, so that the second base station acquires the random access preamble; Transmitting, by using the preamble signature sequence and the scrambling code of the second base station of the broadcast, the random access preamble to the second base station, so that the second base station translates the random access preamble
  • the detecting that the downlink channel quality of the second base station is higher than an uplink access threshold including: acquiring related parameters, said parameters comprising said M_ new, CIO new, M best and R RACH; determined according to the correlation parameter equation 10logM_ new + CIO new ⁇ 10logM best + R RACH is satisfied, if established, is confirmed detected the downlink channel quality is higher than the second base station uplink access threshold; wherein said 10logM_ new downlink channel quality for said second base station; the following parameters as a M_ new base station in the second or combination: a common pilot channel received signal code power CPICH_RSCP, chip power noise ratio Ec / N0, the control channel of the channel quality, channel quality of a synchronization channel; the CIO_ new is a cell measurement value of the second base station is located partial set; M_ best channel quality to the base station of the first cell is located; the R RACH measurement reporting range.
  • the indication of the acquisition indicator channel that is sent by the second Determining whether the second base station allows uplink access including: detecting that a signature sequence of the acquisition indicator channel sent by the second base station corresponds to a signature sequence of the random access preamble, and the obtaining indicator The signature sequence of the channel is decoded, and it is determined according to the decoding result whether the second base station allows uplink access.
  • the sending, by the second base station, a random access message including And transmitting, by using the scrambling code and the spreading code of the second base station, a random access message to the second base station, where the spreading code is pre-agreed or acquired through a broadcast.
  • the method before the sending the random access preamble, further includes: receiving a scrambling code and obtaining an indication of the second base station broadcast by the radio network controller
  • the first channel of the channel is configured to allow the first base station to be located to receive the acquisition indicator channel sent by the second base station in the time of receiving the acquisition indicator channel sent by the first base station;
  • Transmitting the random access preamble includes: transmitting a random access preamble to the first base station or the second base station, so that the second base station acquires the random access preamble.
  • the determining, by the second base station, an indication of an acquisition indicator channel, determining the second base station Whether the uplink access is allowed including: detecting a parameter value set by the AI portion of the acquisition indicator channel that is sent by the second base station, indicating whether to allow random access by the UE, determining, according to the parameter value, Whether the second base station allows uplink access.
  • the method before the sending the random access message to the second base station, the method further includes: determining Whether the acquisition indicator channel of the first base station is received; if yes, sending a random access message to the first base station.
  • the method further The channel is imported to the access channel or the high speed downlink.
  • the random access message uses the first base station or the The scrambling code of the second base station is scrambled, so that when the second base station or the first base station receives the random access message, it is identified whether the random access message needs to be forwarded to the radio network controller.
  • the control part of the random access message sets indication information, so that when the second base station or the first base station receives the random access message, it is identified whether the random access message needs to be forwarded to the Said wireless network controller.
  • a third aspect provides a method for controlling interference of a random access, where the method includes: configuring a user equipment UE to access uplink in a second base station or allowing the UE to receive an indicator channel that is sent by the first base station. Receiving, by the second base station, an acquisition indicator channel, where the first base station is a base station where the UE is camped, and the second base station is a neighboring area of a cell where the first base station is located.
  • the second base station sends a primary scrambling code of the random access preamble broadcast by the first base station, so that after the second base station acquires the random access preamble sent by the UE, according to the primary scrambling code, Before random access
  • the pilot code is decoded, and an acquisition indicator channel is sent to the UE, indicating whether the UE allows random access.
  • the related information of the random access includes: a preamble signature sequence, a scrambling code, and an acquisition indicator channel code channel of the second base station, where the preamble signature sequence is different from a preamble signature sequence randomly accessed by a UE camping in the second base station;
  • the information about the random access includes: The scrambling code of the second base station and the acquisition indicator channel code channel.
  • the method further includes: receiving, by the second base station, and/or forwarding by the first base station a random access message; instructing, according to the random access message, the first base station to send a forward import access channel or a high speed downlink shared channel to the UE.
  • a base station including: a broadcast receiving unit, configured to acquire a primary scrambling code of a random access preamble broadcast by a radio network control device; and a preamble obtaining unit, configured to acquire a random connection sent by the user equipment UE a preamble; an identifying unit, configured to identify, according to the primary scrambling code of the broadcast random access preamble and the random access preamble sent by the UE, whether the UE is camped on a neighboring cell a UE of the first base station, and a channel sending unit, configured to: when the identifying unit identifies that the UE is a UE that is camped on the first base station, send an acquiring indicator channel to the UE, indicating the UE Is it possible to access upstream?
  • the preamble acquiring unit is configured to: receive a random access preamble sent by the UE; Obtaining a slot format of the indicator channel includes capturing an indication AI portion, the AI portion using a signature sequence corresponding to a signature sequence of a random access preamble transmitted by the UE, to enable the UE to detect the AI
  • the signature sequence corresponds to the signature sequence of the random access preamble
  • the signature sequence of the AI is decoded, and whether uplink access is allowed is determined according to the decoding result.
  • the preamble acquiring unit is configured to acquire a random connection that is sent by the UE to the first base station
  • the channel sending unit includes: a resource evaluation module, configured to: after the preamble acquiring unit monitors the random access preamble, evaluate whether the base station has remaining resources; and the channel processing module uses Transmitting the acquisition indicator channel to the UE when the resource evaluation module evaluates that the base station has remaining resources, where the acquisition indicator channel slot includes an AI portion and a pilot Pilot portion,
  • the AI part is provided with a parameter value indicating whether the UE is allowed to be randomly accessed, so that the UE sends a random access message when allowed to random access, and the Pilot part is used by the UE to the acquisition indicator.
  • the channel performs channel estimation; or is also used to repeatedly transmit using the acquisition indicator channel using multiple time slots or transmission time intervals TTI to increase the correct reception probability of the UE.
  • the method further includes: an access message receiving unit, configured to receive the UE And a forwarding unit, configured to forward the random access message to the radio network controller, so that the radio network controller controls the first base station to send the relevant channel to the UE.
  • the forwarding unit is further configured to identify the random access message, if the random connection The incoming message is sent to the base station, and the random access message is forwarded to the radio network controller.
  • the fifth aspect provides a user equipment, including: a preamble sending unit, configured to send a random access preamble, so that the second base station acquires the random access preamble, where the second base station is the UE station a base station where a neighboring cell of the cell where the first base station is located is located; an uplink channel receiving unit is configured to receive an acquisition indicator channel that is sent by the second base station; and an access message sending unit is configured to receive, according to the uplink channel, the receiving unit The received acquisition indicator channel determines whether the second base station allows uplink access, and if the uplink access is allowed, sends a random access message to the second base station.
  • a preamble sending unit configured to send a random access preamble, so that the second base station acquires the random access preamble, where the second base station is the UE station a base station where a neighboring cell of the cell where the first base station is located is located
  • an uplink channel receiving unit is configured to receive an acquisition indicator channel that is sent by the second base station
  • the method further includes: a broadcast receiving unit, configured to receive a preamble signature sequence, a scrambling code, and an acquisition indication of the second base station broadcast by a radio network controller a channel code channel, the first base station is configured to allow the UE to access the second base station, and the threshold detecting unit is configured to learn, by the broadcast receiving unit, that the first base station is configured to allow the UE And detecting, by the second base station, the downlink channel quality of the second base station is higher than an uplink access threshold; the preamble sending unit is configured to send a random access preamble, where When the threshold detection unit detects that the downlink channel quality of the second base station is higher than the uplink access threshold, sends the preamble signature sequence and the scrambling code of the second base station that is broadcast to the second base station.
  • a broadcast receiving unit configured to receive a preamble signature sequence, a scrambling code, and an acquisition indication of the second base station broadcast by a radio network controller a channel code channel
  • the first base station is
  • the random access preamble is configured to enable the second base station to decode the random access preamble, and identify, according to the signature sequence of the random access preamble, that it is camped in a neighboring cell.
  • the access message sending unit includes: a channel analyzing module, configured to detect the uplink channel receiving unit Receiving the acquisition indicator channel, when detecting that the signature sequence of the acquisition indicator channel corresponds to the signature sequence of the random access preamble, decoding the signature sequence of the acquisition indicator channel, according to decoding As a result, it is determined whether the second base station allows uplink access, and the sending module is configured to send a random access message to the second base station when the channel analysis module determines that the second base station allows uplink access.
  • the method further includes: a broadcast receiving unit, configured to receive a scrambling code of the second base station that is broadcast by the radio network controller, and obtain an indicator channel, and learn The first base station is configured to allow the receiving indicator channel that is sent by the second base station to receive the acquiring indicator channel that is sent by the first base station; the preamble sending unit is configured to send The preamble is randomly accessed, so that the second base station acquires the random access preamble.
  • the access message sending unit includes: a channel analyzing module, configured to detect the The acquisition of the acquisition indicator channel received by the line channel receiving unit indicates a parameter value set by the AI part for indicating whether to allow uplink access, and determining, according to the parameter value, whether the second base station allows uplink access; And when the channel analysis module determines that the second base station allows uplink access, sending a random access message to the second base station.
  • the uplink channel receiving unit is further configured to receive the Acquiring an indicator channel;
  • the access message sending unit is further configured to: at the same time, receive, by the uplink channel receiving unit, an acquisition indicator channel that is sent by the second base station, and an acquisition indicator that is sent by the first base station In the case of a channel, a random access message is sent to the first base station.
  • the access message sending unit is further configured to be used in the random access message.
  • the scrambling code of the first base station or the second base station is scrambled to identify whether the random access message needs to be received when the second base station or the first base station receives the random access message Forwarding to the radio network controller; or for setting indication information in a control part of the random access message, so that the second base station or the first base station recognizes when the random access message is received Whether the random access message needs to be forwarded to the radio network controller.
  • the method further includes: a downlink channel receiving unit, configured to receive The forward introduction access channel or the high speed downlink shared channel sent by the first base station.
  • a wireless network control device including: a configuration unit, configured to configure a user equipment UE to access uplink in a second base station, or to configure an acquisition indicator that allows the UE to send the first base station to send Receiving, by the time of the channel, the acquisition indicator channel that is sent by the second base station, where the first base station is a base station where the UE is camped, and the second base station is a neighboring area of the cell where the first base station is located.
  • a base station a broadcast unit, configured to broadcast information about random access of the second base station to the UE according to the configuration of the configuration unit, so that the UE learns the configuration, and according to the random connection
  • the related information is sent to the random access procedure, and is further configured to send, to the second base station, a primary scrambling code of the random access preamble broadcast by the first base station, so that the second base station acquires the sent by the UE
  • the random access preamble is decoded according to the primary scrambling code, and the acquisition indicator channel is sent to the UE.
  • the broadcast unit when the configuring is to allow the user equipment UE of the first base station to randomly access the second base station, the broadcast unit is configured to Transmitting, by the UE, a preamble signature sequence, a scrambling code, and an acquisition indicator channel of the second base station, where the preamble signature sequence is different from a preamble signature sequence randomly accessed by a UE camping in the second base station;
  • the broadcast unit is configured to broadcast to the UE when the UE obtains an acquisition indicator channel that is sent by the second base station in a time when the UE receives the acquisition indicator channel that is sent by the first base station.
  • the scrambling code of the second base station and the acquisition indicator channel code channel when the configuring is to allow the user equipment UE of the first base station to randomly access the second base station.
  • the method further includes: a receiving unit, configured to receive the second base station, and/or a random access message forwarded by the first base station; and an indication unit, configured to instruct the first base station to send a forward import access channel or a high speed downlink shared channel to the UE according to the random access message.
  • the method further includes: selecting a merging unit, configured to receive, by the receiving unit, the second base station and the When the random access message forwarded by the first base station is described, the random access message received by the receiving unit is selected and merged.
  • the seventh aspect provides a random access system, including: the base station according to any one of the implementation manners provided by the fourth aspect; The user equipment UE of the base station where the neighboring cell is located; the radio network controller of any one of the implementation manners provided by the sixth aspect; the base station that the UE camps on, according to the indication of the radio network controller The UE transmits the forward-imported access channel or the high-speed downlink shared channel.
  • the eighth aspect provides a base station, including: a receiver, configured to acquire a primary scrambling code of a random access preamble broadcast by a radio network control device, and a random access preamble sent by the user equipment UE; and a processor, configured to: Determining, according to the primary scrambling code of the broadcast random access preamble and the random access preamble sent by the UE, whether the UE is a UE camping at the first base station; And the processor, when the UE is located in the UE of the first base station, sends an acquisition indicator channel to the UE, indicating whether the UE is capable of uplink access.
  • the receiver is configured to receive a random access preamble sent by the UE, and the acquiring indicator channel sent by the sending
  • the slot format includes an indication indication AI portion, and the AI portion uses a signature sequence corresponding to a signature sequence of the random access preamble transmitted by the UE, so that the UE detects the signature sequence and the AI of the AI.
  • the signature sequence of the random access preamble is corresponding, the signature sequence of the AI is decoded, and whether uplink access is allowed is determined according to the decoding result.
  • the receiver is configured to monitor a random access preamble sent by the UE to the first base station; After the receiver monitors the random access preamble, whether the base station has remaining resources, and the transmitter is further configured to: when the processor evaluates that the base station has remaining resources, Transmitting, by the UE, the acquisition indicator channel, where the acquisition indicator channel slot includes an AI part and a pilot Pilot part, and the AI part is provided with a parameter value indicating whether to allow the UE to access uplink, so that The UE sends a random access message when the uplink access is allowed, and the Pilot part is used by the UE to obtain the random access message. Taking the indicator channel for channel estimation; or, further, using the acquisition indicator channel to repeatedly transmit using multiple time slots or transmission time intervals TTI to increase the correct reception probability of the UE.
  • the receiver is further configured to receive the random And the sending device is further configured to forward the random access message to the radio network controller, so that the radio network controller controls the first base station to send an relevant channel to the UE.
  • the processor is further configured to identify the random access message; And when the processor identifies that the random access message is sent to the base station, forwarding the random access message to the radio network controller.
  • the ninth aspect provides a user equipment, including: a transmitter, configured to send a random access preamble, so that the second base station acquires the random access preamble, where the second base station is the UE camping a base station where a neighboring cell of the first base station is located; a receiver, configured to receive an acquisition indicator channel sent by the second base station; and a processor, configured to determine, according to the acquisition indicator channel received by the receiver Whether the second base station allows uplink access; the transmitter is further configured to: when the processor determines that the second base station allows uplink access, send a random access message to the second base station.
  • the receiver is configured to receive a preamble signature sequence, a scrambling code, and an acquisition indicator channel of the second base station broadcast by a radio network controller a code channel; the processor is further configured to learn, according to the preamble signature, the scrambling code, and the acquisition indicator channel code channel of the second base station that is received by the receiver, that the first base station is configured to allow the UE to be in the And detecting, by the second base station, an uplink access threshold; and detecting, by the first base station, that the downlink channel quality of the second base station is higher than an uplink access threshold when the first base station is configured to allow the UE to access the uplink of the second base station; a transmitter, configured to use a preamble signature sequence and a scrambling code of the second base station that is broadcasted when the processor detects that a downlink channel quality of the second base station is higher than the uplink access threshold Transmitting, by the second base station, the random
  • the processor is further configured to detect the signature of the acquisition indicator channel And when the sequence corresponds to the signature sequence of the random access preamble, decoding the signature sequence of the acquisition indicator channel, and determining, according to the decoding result, whether the second base station allows uplink access; the transmitter, And when the processor determines that the second base station allows uplink access, sending a random access message to the second base station.
  • the receiver is configured to receive a scrambling code of the second base station broadcast by a radio network controller, and acquire an indicator channel code channel;
  • the processor is further configured to: according to the receiver receiving the scrambling code of the second base station broadcast by the radio network controller, and acquiring an indicator channel code track, knowing that the first base station where the first base station is located is configured to allow the Receiving, by the base station, an acquisition indicator channel that is sent by the second base station, and a transmitter, configured to send a random access preamble to the first base station or the second base station, where So that the second base station acquires the random access preamble.
  • the processor is further configured to detect a capture of an acquisition indicator channel that is sent by the second base station Determining, by the AI part, a parameter value for indicating whether to allow uplink access, determining, according to the parameter value, whether the second base station allows uplink access; the transmitter is further configured to determine, at the processor, the When the second base station allows uplink access, the random access message is sent to the second base station.
  • the receiver is further configured to receive an acquisition indication sent by the first base station
  • the processor is further configured to determine whether the receiver receives the acquisition indicator channel of the first base station when receiving the acquisition indicator channel sent by the second base station; When the processor determines that the receiver receives the acquisition indicator channel of the first base station, ignoring the acquisition indicator channel sent by the second base station, and sending random access to the first base station. Message.
  • the transmitter The scrambling code of the first base station or the second base station is scrambled, so that when the second base station or the first base station receives the random access message, it is identified whether the random access message needs to be forwarded to The radio network controller; or is further configured to: set indication information in a control part of the random access message, to enable the second base station or the first base station to identify whether it is needed when receiving the random access message Forwarding the random access message to the radio network controller.
  • any one of the first to sixth aspects may be implemented, in the In a seventh possible implementation manner of the ninth aspect, the receiver is further configured to receive a forward import access channel or a high speed downlink shared channel that is sent by the first base station.
  • a wireless network control device including: a processor, configured to allow a user equipment UE to uplink access in a second base station where a neighboring cell is located, or configured to allow the UE to receive the first base station Receiving an acquisition indicator channel sent by the second base station, where the first base station is a base station where the UE camps, and the second base station is the first base station a base station where the neighboring cell of the cell is located; a transmitter, configured to broadcast information about the random access of the second base station to the UE according to the configuration of the processor, so that the UE learns the configuration, and And the primary accession code of the random access preamble broadcasted by the first base station is sent to the second base station, so that the second base station acquires After the random access preamble sent by the UE, the random access preamble is decoded according to the primary scrambling code, and the acquisition indicator channel is sent to the UE.
  • the sending is configured to: when the user equipment UE configured to allow the first base station to randomly access the second base station, Transmitting, by the UE, a preamble signature sequence, a scrambling code, and an acquisition indicator channel code channel of the second base station, where the preamble signature sequence is different from a preamble signature sequence randomly accessed by a UE camping in the second base station; or
  • the transmitter configured to: when the UE configured to allow the UE of the first base station receives the acquisition indicator channel of the second base station in a time of receiving the acquisition indicator channel of the first base station, The UE broadcasts the scrambling code of the second base station and acquires an indicator channel code channel.
  • the method further includes a receiver, where the receiver is configured to receive the second base station and And the random access message forwarded by the first base station; the sender is further configured to: according to the random access message, instruct the first base station to send a forward import access channel or a high speed downlink to the UE Road shared channel.
  • the processor is further configured to receive, by the receiver, the second base station and the When the random access message is forwarded by the first base station, the random access message received by the receiver is subjected to macro-diversity mode for selective combining.
  • the base station acquires the indicator channel and broadcasts the primary scrambling code of the random access preamble to the second base station, so that the second base station can obtain the random access preamble sent by the UE and send an acquisition indication to the UE after decoding.
  • a channel when the acquisition indicator channel sent by the second base station indicates that the UE is allowed to access uplink, the UE may access the uplink in the second base station, so there is no need to receive the acquisition indicator channel of the first base station where the UE is located.
  • FIG. 1 is a schematic diagram of a scenario in which a UE is located in a HetNet according to an embodiment of the present invention
  • Embodiment 2 is a flowchart of a method for controlling interference of random access according to Embodiment 1 of the present invention
  • Embodiment 3 is a flowchart of a method for controlling interference of random access according to Embodiment 2 of the present invention.
  • FIG. 5 is a flowchart of a method for controlling interference of random access according to Embodiment 4 of the present invention.
  • FIG. 6 is a schematic diagram of a slot format of a non-serving AICH in a method according to Embodiment 4 of the present invention.
  • FIG. 7 is a flowchart of a method for a downlink UE to receive a relevant channel from a macro station according to Embodiment 4 of the present invention.
  • FIG. 8 is a flowchart of a method for controlling interference of random access according to Embodiment 5 of the present invention.
  • FIG. 9 is a schematic diagram of a slot format of a non-serving AICH in a method according to Embodiment 5 of the present invention.
  • FIG. 10 is a flowchart of a method for receiving a non-serving AICH of an LPN broadcast by a macro station in a method in which the UE receives the AICH of the current cell in the RACH process according to the method provided in Embodiment 5 of the present invention;
  • FIG. 11 is a schematic structural diagram of a base station according to Embodiment 6 of the present invention.
  • FIG. 12 and FIG. 13 are schematic structural diagrams of a user equipment according to Embodiment 7 of the present invention.
  • FIG. 14 is a schematic structural diagram of a user equipment according to Embodiment 8 of the present invention.
  • FIG. 15 and FIG. 16 are schematic structural diagrams of a wireless network control device according to Embodiment 9 of the present invention.
  • Embodiment 17 is a schematic diagram of a system for random access provided by Embodiment 10 of the present invention.
  • FIG. 18 is a schematic diagram of a system for random access according to Embodiment 11 of the present invention.
  • Embodiment 12 of the present invention is a schematic structural diagram of a base station according to Embodiment 12 of the present invention.
  • FIG. 20 is a schematic structural diagram of a user equipment according to Embodiment 13 of the present invention.
  • FIG. 21 is a schematic structural diagram of a wireless network control device according to Embodiment 14 of the present invention.
  • the inventor has found that in the HetNet, as shown in FIG. 1, the RACH ramping access is performed on the UE that resides in the first base station, and the preamble sent by the UE causes burst interference to the second base station where the neighboring cell is located, mainly Because the preamble sent by the UE cannot be detected by the second base station, the UE will continue to boost the preamble power until the first base station receives the E-AI/AI (Enhanced-Acquisition Indicatior, enhanced). Capture indication) or reach the maximum number of preamble transmissions. In this process, the preamble of the UE will cause burst interference to the second base station, and the interference will gradually increase until the UE transmits the PRACH message.
  • E-AI/AI Enhanced-Acquisition Indicatior, enhanced
  • the UE Forward Access Channel
  • LPN neighboring second base station
  • the second base station sends a response to the UE, so that the interference of the preamble to the second base station when the first base station edge UE is in random access can be resolved.
  • the RNC informs the second base station of the RACH preamble primary scrambling code broadcasted in the first base station IE “PRACH info” or the IE “PRACH preamble control parameters”, and the second base station receives and decodes the preamble of the first base station UE. And transmitting the UE to the second base station by sending a acquire indicator channel non-serving AICH to the UE.
  • the embodiment provides a random access interference control method, including:
  • the method further includes:
  • the forwarding the random access message to the radio network controller includes:
  • Identifying the random access message if it is the sending target of the random access message, sending an uplink to the radio network controller according to the random access message.
  • identifying the random access message includes:
  • the method before acquiring the random access preamble sent by the user equipment, the method further includes: receiving the random access preamble obtained by the UE.
  • the obtaining an indicator channel to the UE, indicating that the UE is capable of uplink access includes:
  • the slot format of the acquisition indicator channel includes a capture indication AI portion, the AI portion using a signature corresponding to a signature sequence of a random access preamble transmitted by the UE a sequence, so that when the UE detects that the signature sequence of the AI corresponds to the signature sequence of the random access preamble, the UE decodes the signature sequence of the AI, and determines whether to allow uplink according to the decoding result. Access.
  • the random access preamble sent by the user equipment UE is obtained, including:
  • the obtaining an indicator channel to the UE, indicating whether the UE can access the uplink includes:
  • the acquiring indicator channel is sent to the UE, and the slot structure of the acquiring indicator channel includes an AI part; and the AI part is provided with a parameter value indicating whether to allow the UE to access uplink.
  • the obtaining the indicator channel to the UE includes using the acquiring indicator channel to repeatedly transmit using multiple time slots or transmission time intervals to increase the correct receiving probability of the UE.
  • the LPN sends a non-serving AICH channel to the UE and instructs the UE to access, so that the UE can access the uplink from the LPN, so the UE does not need to receive the AICH of the first base station where the UE is located. There is no need to continue to send the preamble to the first base station, thereby suppressing interference of the random access of the UE to the uplink of the LPN, increasing the uplink throughput rate of the LPN, and also saving the transmission power of the UE.
  • the embodiment provides a random access interference control method, including:
  • the random access message is scrambled by using a scrambling code of the first base station or the second base station, so that when the second base station or the first base station receives the random access message Identifying whether the random access message needs to be forwarded to the radio network controller; or
  • the control part of the random access message sets indication information, so that when the second base station or the first base station receives the random access message, it is identified whether the random access message needs to be forwarded to the wireless Network controller.
  • the power of the random access message is determined according to the power of the last transmitted preamble.
  • the forward-imported access channel or the high-speed downlink shared channel transmitted by the first base station is still received.
  • the method before sending the random access preamble, the method further includes:
  • the UE of the first base station is configured to send an acquisition indicator channel thereto.
  • the detecting that the downlink channel quality of the second base station is higher than an uplink access threshold including,
  • said parameters comprising said M_ new, CIO new, M best and R RACH;
  • the following parameters M_ new is the second base station of one or more of a combination of: a common pilot channel received signal code power CPICH_RSCP, chip power noise ratio Ec / N0, the channel quality of a control channel, a synchronization channel Channel quality;
  • the M_ best channel quality to the base station is located in a first cell
  • the R RACH is a measurement report range.
  • determining, according to the indication of the acquisition indicator channel that is sent by the second base station, whether the second base station allows uplink access includes:
  • the second base station Detecting that the signature sequence of the acquisition indicator channel sent by the second base station corresponds to the signature sequence of the random access preamble, decoding the signature sequence of the acquisition indicator channel, and determining the location according to the decoding result Whether the second base station allows uplink access: if the decoding result is 1, it indicates that the second base station allows uplink access, otherwise it indicates that the second base station does not allow uplink access.
  • sending a random access message to the second base station includes:
  • the method before sending the random access preamble, the method further includes:
  • the transmitting the random access preamble includes: sending a random access preamble to the first base station or the second base station, so that the second base station listens to the random access preamble.
  • determining, according to the indication of the acquisition indicator channel that is sent by the second base station, whether the second base station allows uplink access includes:
  • the method further includes:
  • the method provided in this embodiment is performed by a UE.
  • the UE may uplink access from the second base station where the neighboring cell is located in the uplink or allow the UE to receive the second time in receiving the acquisition indicator channel of the first base station.
  • the acquisition indicator channel of the base station when the acquisition indicator channel indicates that the UE is allowed to access the uplink, the UE may access the uplink in the LPN, and does not need to receive the AICH of the first base station where it is located, and does not need to continue to send the random to the first base station.
  • the preamble is accessed, thereby suppressing the interference of the random access of the UE to the uplink of the LPN, increasing the uplink throughput rate of the LPN, and also saving the transmission power of the UE.
  • the embodiment provides a random access interference control method, including:
  • the configuration is: the user equipment UE is allowed to access the uplink of the second base station, or the UE is configured to receive the acquisition indicator channel that is sent by the second base station in the time of receiving the acquisition indicator channel that is sent by the first base station, where
  • the first base station is a base station where the UE is camped, and the second base station is a base station where a neighboring cell of the cell where the first base station is located;
  • the primary scrambling code of the random access preamble broadcasted by the first base station is sent to the second base station according to the configuration, so that after the second base station acquires the random access preamble sent by the UE, Decoding the random access preamble according to the primary scrambling code, and sending an acquisition indicator channel to the UE, indicating whether the UE allows random access.
  • the information about the random access includes: a preamble signature sequence of the second base station, a scrambling code, and an acquisition indicator channel code channel, where the configuration is to allow the user equipment UE to randomly access the second base station, where The preamble signature sequence is different from a preamble signature sequence randomly accessed by a UE camping in the second base station;
  • the related information of the random access includes : the scrambling code of the second base station and the acquisition indicator channel code channel.
  • the first base station sending a forward import access channel or a high speed downlink shared channel to the UE.
  • the method further includes:
  • the method provided by this implementation is performed by the RNC.
  • the UE of the first base station is set by the RNC, allowing the UE to uplink access from the second base station where the neighboring cell is located in the uplink or allowing the UE to receive in the time of receiving the acquisition indicator channel of the first base station. Acquiring the indicator channel of the second base station, and broadcasting the primary scrambling code of the random access preamble to the second base station, so that the second base station can obtain the random access preamble sent by the UE and send the message to the UE after decoding.
  • the UE may access the uplink in the second base station, and does not need to receive the AICH of the first base station where it is located, and does not need to continue to send the random to the first base station.
  • the preamble is accessed, thereby suppressing the interference of the random access of the UE to the uplink of the second base station, increasing the uplink throughput rate of the second base station, and saving the transmission power of the UE.
  • the embodiment of the present invention provides a random access interference control method, which can be applied to the R99RACH, or can be applied to other versions of the RACH.
  • the method process includes:
  • the RNC configures whether the UE in the macro cell (or macro station) can access the LPN in the R99 RACH uplink.
  • the RNC will broadcast the random access phase of the micro station to the UE. And the information is obtained, so that the UE is informed of the configuration, and enters a random access procedure according to the information about the random access. At the same time, the RNC also informs the LPN of the primary scrambling code of the RACH preamble broadcast by the macro station.
  • the information about the random access is a preamble signature and a scrambling code that the UE broadcasts in the System Information Block (SIB5 or 5BIS) to allow the UE to access the LPN, and the non-LPN of the LPN. -serving AICH code.
  • SIB5 or 5BIS System Information Block
  • the preamble signature is different from the preamble signature of the RACH access of the UE in the LPN cell.
  • the primary scrambling code of the RACH preamble broadcast by the macro station is the primary scrambling code of the preamble broadcasted in the IE "PRACH info” and the IE "PRACH preamble control parameters".
  • the UE When the UE detects that the downlink channel quality of a neighboring LPN meets a certain threshold (ie, an uplink access threshold), the UE sends a random access preamble to the LPN.
  • a certain threshold ie, an uplink access threshold
  • the UE sends a random access preamble, uses the preamble signature and the scrambling code broadcast by the RNC, and accesses the LPN in the uplink according to the R99 PRACH procedure.
  • the UE does not receive the AICH (Acquisition Indication Channel) of the own cell (that is, the macro station where the UE is located).
  • AICH Admission Indication Channel
  • the downlink channel quality of the detecting micro station is higher than the uplink access threshold, including,
  • the correlation parameter comprises M_ new, CIO new, M best and R RACH
  • M_ new may be CPICH_RSCP neighboring micro station (Common Pilot Channel Received Signal Code Power) or CPICH Ec / N0 (chip noise power ratio), or may be other control neighboring location or synchronization channel channel quality , or a combination of quality of multiple control or synchronization channels.
  • the LPN receives the random access preamble sent by the UE, and decodes the random access preamble according to the primary scrambling code of the random access preamble broadcasted in the macro station system information block, and identifies the macro by using the preamble signature.
  • the station UE then delivers a non-serving AICH channel to indicate whether the UE can access uplink.
  • the non-serving AICH channel has the same format as the traditional AICH channel, and includes an AI (Acquisition Indicatior) part, and the AI part is used before the random transmission sent by the UE.
  • the signature sequence corresponding to the preamble signature of the pilot.
  • the format of each access slot (5120 chips) of the non-serving AICH is shown in FIG. 6.
  • an Access Slot represents an access slot.
  • the first 4096 chips (ie, AI part) of the access slot represent a signature sequence signature, and the signature sequence and preamble signature sequence (ie, preamble signature).
  • the UE detects that the signature sequence of the non-serving AICH (ie, the signature sequence of the AI part) corresponds to the signature sequence of the preamble transmitted by itself, the UE can decode the sequence. If the value is 1, it indicates that uplink access is available; otherwise, it indicates that uplink access is not available.
  • the random access message RACH message may be sent to the LPN by using the scrambling code and the spreading code of the LPN, and the uplink access message is received from the LPN. In.
  • the spreading code may be pre-agreed or acquired by the UE through broadcast.
  • the power of the RACH message is determined based on the last transmitted preamble power.
  • the UE still receives the relevant channel from the macro station.
  • step 506 specifically includes the following steps:
  • the LPN forwards the RACH message to the RNC, that is, sends uplink data (uplink data) to the RNC according to the RACH message.
  • the RNC receives the uplink data, and sends downlink traffic (downlink traffic) to the macro station where the UE is located according to the uplink data, instructing the macro station to send the relevant channel to the UE.
  • downlink traffic downlink traffic
  • the macro station sends a FACH or HS-DSCH (High-Speed Downlink Shared Channel) to the UE.
  • FACH Frequency Division Multiple Access
  • HS-DSCH High-Speed Downlink Shared Channel
  • the RNC configuration allows the UE in the macro cell to access the LPN where the neighboring cell is located, broadcasts the preamble signature of the allowed LPN, the scrambling code, and the non-serving AICH code channel to the UE, and broadcasts the macro station.
  • the RACH scrambling code informs the LPN, so when the UE detects that the downlink channel quality of the LPN in which the neighboring cell is located meets a certain threshold, the UE may send an uplink access request to the LPN, as long as the LPN sends the uplink access request to the UE.
  • the non-serving AICH channel and indicating the UE access the UE can access from the LPN uplink, so there is no need to receive the AICH of the macro station where it is located, and there is no need to continue to send the preamble to the macro station, thereby suppressing the random access pair of the UE.
  • the interference of the LPN uplink increases the uplink throughput rate of the LPN and also saves the transmission power of the UE.
  • the R99 RACH is used as an example to provide a random access interference control method. Referring to FIG. 8, the method process includes:
  • the RNC configures whether the UE in the macro cell receives the acquisition indicator channel non-serving AICH delivered by the micro station in the time of receiving the AICH.
  • the slot format of the non-serving AICH channel of the LPN is shown in 9.
  • each time slot includes a Pilot (pilot) portion and an AI portion: the pilot portion is used for channel estimation by the UE for the non-serving AICH, and the AI is an access indication delivered by the LPN.
  • the Non-serving AICH may use multiple time slots or TTI (Transmission Time Interval) to repeatedly transmit to increase the correct reception probability of the UE.
  • TTI Transmission Time Interval
  • the UE receives the non-serving AICH of the LPN broadcast by the macro station within a time period of receiving the AICH of the current cell in the RACH process.
  • step 803 specifically includes the following steps:
  • the LPN listens to the random access preamble of the R99 RACH sent by the UE to the macro station.
  • the UE sends a random access preamble to the macro station by using RACH ramping.
  • the LPN detects a RACH ramping random access preamble of the UE, and decodes the random access preamble according to the primary scrambling code of the random access preamble, and identifies that the UE is the macro station UE. Send a non-serving AICH to the UE.
  • the UE performs RACH ramping access to the macro station, and cannot be detected by the macro station when the preamble sent by the UE can be detected by the micro station.
  • the LPN will set a parameter pattern value indicating whether to allow the UE to access the uplink in the AI part of the non-serving AICH, indicating whether the UE can access uplink.
  • the UE receives and detects a pattern of the AI part on the non-serving AICH. If the UE is allowed to access, the UE sends a PRACH message random access message to the LPN at an appropriate time.
  • the power of the PRACH message is determined according to the last preamble power sent by the UE.
  • the UE still receives the FACH or HS-DSCH from the macro station.
  • the LPN forwards the received random access message, that is, sends uplink data to the RNC according to the received RACH message.
  • the RNC receives the uplink data, and sends downlink traffic (downlink traffic) to the macro station where the UE is located according to the uplink data.
  • the macro station sends a FACH or an HS-DSCH to the UE.
  • the UE if the UE receives the AICH of the macro station and the LPN at the same time, the UE ignores the AICH of the LPN and sends a PRACH message to the macro station. At this time, the macro station forwards the PRACH message to the RNC.
  • the following processing methods can be adopted:
  • Method 1 Differentiate according to the scrambling code used by the PRACH message sent by the UE. If the scrambling code is a broadcast, the macro station scrambling code indicates that the macro station is accessed; the scrambling code used is the broadcast LPN scrambling code indicating that the access is Micro station
  • Method 2 The UE sends a 1-bit indication information to the macro station or the micro station in the control part of the control part of the PRACH message;
  • the macro station or the LPN recognizes that the RACH message of the UE is not addressed to itself, it will not forward to the RNC.
  • the access division may not be performed, and the RNC uses the macro diversity method for the selection and combining of the RACH messages.
  • the RNC configuration allows the UE in the macro cell to access the LPN where the neighboring cell is located, broadcasts the allowed LPN scrambling code and the non-serving AICH code channel to the UE, and informs the primary scrambling code of the RACH preamble broadcasted by the macro station.
  • the LPN then listens to the preamble sent by the UE to the macro station by the LPN.
  • the LPN detects the RACH preamble sent by the UE, if the LPN has the remaining resources, it sends a non-serving AICH to the UE to indicate the UE access.
  • the UE does not need to continue to send the preamble to the macro station, thereby suppressing the interference of the random access of the UE to the uplink of the LPN, increasing the uplink throughput rate of the LPN, and also saving the transmission power of the UE.
  • this embodiment provides a base station, including:
  • the broadcast receiving unit 111 is configured to acquire a primary scrambling code of a random access preamble broadcast by the radio network control device;
  • the preamble obtaining unit 112 is configured to acquire a random access preamble sent by the user equipment UE.
  • the identifying unit 113 is configured to identify, according to the random access preamble and the primary scrambling code received by the broadcast receiving unit 111, whether the UE is a UE that camps on a first base station where a neighboring cell is located;
  • the channel sending unit 114 is configured to: when the identifying unit 112 identifies that the UE is a UE that is camped on the first base station, send an acquiring indicator channel to the UE, indicating whether the UE can uplink In.
  • the preamble obtaining unit 112 is configured to: receive a random access preamble sent by the UE;
  • the slot format of the acquisition indicator channel sent by the channel sending unit 114 includes a capture indication AI part, and the AI part uses a signature sequence corresponding to a signature sequence of a random access preamble sent by the UE, so that When the UE detects that the signature sequence of the AI corresponds to the signature sequence of the random access preamble, the UE decodes the signature sequence of the AI, and determines whether to allow uplink access according to the decoding result.
  • the preamble obtaining unit 112 is configured to: monitor a random access preamble sent by the UE to the first base station;
  • the channel sending unit 114 includes:
  • a resource evaluation module configured to: after the preamble acquiring unit monitors the random access preamble, whether the base station has remaining resources;
  • a channel processing module configured to send the acquisition indicator channel to the UE when the resource evaluation module evaluates that the base station has remaining resources, where the acquisition indicator channel time slot includes an AI part and a pilot a Pilot portion, the AI portion being provided with a parameter value indicating whether the UE is allowed to be randomly accessed, so that the UE sends a random access message when allowed to be randomly accessed, and the Pilot portion is used for the UE pair
  • the acquisition indicator channel performs channel estimation; or is further used to repeatedly transmit using the acquisition indicator channel using multiple time slots or transmission time intervals TTI to increase the correct reception probability of the UE.
  • the base station may further include:
  • An access message receiving unit configured to receive a random access message sent by the UE
  • a forwarding unit configured to forward the random access message to the radio network controller, so that the radio network controller controls the first base station to send an relevant channel to the UE.
  • the forwarding unit is further configured to identify the random access message, and if the random access message is sent to the micro station, forward the random access message to the radio network controller.
  • the first base station provided by the foregoing embodiment sends a non-serving AICH channel to the UE and instructs the UE to access, so that the UE can access the uplink from the second base station, so the UE does not need to receive the first base station where the UE is located.
  • the AICH does not need to continue to send the preamble to the first base station, thereby suppressing interference of the random access of the UE to the uplink of the LPN, increasing the uplink throughput rate of the LPN, and also saving the transmission power of the UE.
  • this embodiment provides a user equipment UE, including:
  • the preamble sending unit 121 is configured to send a random access preamble, so that the second base station acquires the random access preamble, where the second base station is a neighboring cell of a cell where the first base station where the UE resides Base station
  • the uplink channel receiving unit 122 is configured to receive an acquisition indicator channel that is sent by the second base station;
  • the access message sending unit 123 is configured to determine, according to the channel received by the uplink channel receiving unit, whether the second base station allows uplink access, if uplink access is allowed, and only the acquisition indicator channel is received, The second base station sends a random access message.
  • the UE further includes:
  • the broadcast receiving unit 124 is configured to receive a preamble signature sequence, a scrambling code, and an acquisition indicator channel code channel of the second base station that are broadcast by the radio network controller, and learn that the first base station is configured to allow the UE to be in the second base station.
  • Uplink access
  • the threshold detecting unit 125 is configured to: when the broadcast receiving unit 124 learns that the first base station is configured to allow the UE to access the second base station, whether the downlink channel quality of the second base station is higher than the uplink connection. Entry limit
  • the preamble sending unit 121 is configured to use the preamble signature of the broadcasted second base station when the threshold detection unit 125 detects that the downlink channel quality of the second base station is higher than the uplink access threshold. Transmitting the random access preamble to the second base station, so that the second base station decodes the random access preamble, and according to the signature sequence of the random access preamble It is identified that it is a UE that resides in the neighboring cell, thereby issuing an acquisition indicator channel thereto.
  • the access message sending unit 123 includes:
  • a channel analysis module configured to detect an acquisition indicator channel received by the uplink channel receiving unit, and when the signature sequence of the acquisition indicator channel is detected to correspond to a signature sequence of the random access preamble, The signature sequence of the indicator channel is decoded. If the decoding value is 1, it indicates that the second base station allows uplink access, otherwise it indicates that the second base station does not allow uplink access;
  • a sending module configured to send a random access message to the second base station when the channel analysis module analyzes that the second base station allows uplink access.
  • the user equipment UE of this embodiment further includes:
  • the downlink channel receiving unit 126 is configured to receive a forward import access channel or a high speed downlink shared channel that is sent by the first base station.
  • the user equipment provided in this embodiment may send an uplink access request to the second base station when detecting that the downlink channel quality of a neighboring second base station meets a certain threshold, as long as the second base station sends the uplink access request to the UE.
  • Sending a non-serving AICH channel and instructing the UE to access the UE can access the uplink from the second base station, so there is no need to receive the AICH of the first base station, and there is no need to continue to send the preamble to the first base station, thereby suppressing the UE.
  • the interference of the random access to the uplink of the second base station increases the uplink throughput rate of the second base station, and can also save the transmission power of the UE.
  • this embodiment provides a user equipment UE, including:
  • the preamble sending unit 141 is configured to send a random access preamble, so that the second base station acquires the random access preamble, where the second base station is a neighboring cell of a cell where the first base station where the UE resides The base station where it is located;
  • the uplink channel receiving unit 142 is configured to receive an acquisition indicator channel that is sent by the second base station;
  • the access message sending unit 143 is configured to determine, according to the acquisition indicator channel received by the uplink channel receiving unit, whether the second base station allows random access, if random access is allowed, and only the acquisition indicator channel is received. And sending a random access message to the second base station.
  • the UE further includes:
  • the broadcast receiving unit 144 is configured to receive a scrambling code of the second base station broadcast by the radio network controller and acquire an indicator channel code channel, and learn that the first base station is configured to allow the receiving indicator channel of the first base station to be received. Receiving an acquisition indicator channel delivered by the second base station;
  • the preamble sending unit 141 is configured to: send random access to the first base station or the second base station And a preamble, so that the second base station where the neighboring cell is located acquires the random access preamble.
  • the access message sending unit 143 includes:
  • a channel analysis module configured to detect a parameter value set by the acquisition indication AI part of the acquisition indicator channel received by the uplink channel receiving unit, to indicate whether uplink access is allowed, and determine, according to the parameter value, whether the second base station is Allow uplink access;
  • a sending module configured to send a random access message to the second base station when the channel analysis module analyzes that the second base station allows uplink access.
  • the uplink channel receiving unit 142 is further configured to receive an acquisition indicator channel that is sent by the first base station;
  • the access message sending unit 143 is further configured to: when the uplink channel receiving unit 142 receives the acquiring indicator channel that is sent by the second base station and the acquiring indicator channel that is sent by the first base station, A base station transmits a random access message.
  • the access message sending unit 143 is further configured to perform scrambling in the random access message by using a scrambling code of the first base station or the second base station, so that the second base station or the first base station Identifying whether the random access message needs to be forwarded to the radio network controller when receiving the random access message; or for setting indication information in a control part of the random access message, so that the When the second base station or the first base station receives the random access message, it is determined whether the random access message needs to be forwarded to the radio network controller.
  • the UE further includes:
  • the downlink channel receiving unit 145 is configured to receive the forward import access channel or the high speed downlink shared channel that is sent by the first base station.
  • the user equipment provided in this embodiment may receive uplink access from the second base station when receiving the non-serving AICH sent by the second base station, so that it is not necessary to continue to send the preamble to the first base station, thereby suppressing the UE.
  • the interference of the random access to the uplink of the second base station increases the uplink throughput rate of the second base station, and can also save the transmission power of the UE.
  • the embodiment provides a radio network control device RNC, including:
  • the configuration unit 151 is configured to allow the user equipment UE to uplink access in the second base station where the neighboring cell is located, or to configure the UE to receive the time in the receiving the indicator channel of the first base station.
  • the broadcast unit 152 is configured to broadcast, according to the configuration of the configuration unit 151, information about random access of the second base station to the UE, so that the UE learns the configuration, and according to the random access
  • the related information is sent to the random access procedure, and is further configured to broadcast, to the second base station, a primary scrambling code of the random access preamble broadcast by the first base station, so that the second base station acquires the random connection sent by the UE After entering the preamble, the random access preamble is decoded according to the primary scrambling code, and the acquisition indicator channel is sent to the UE.
  • the broadcast unit 152 is configured to broadcast the preamble signature sequence of the second base station to the UE. a scrambling code and an acquisition indicator channel code channel, wherein the preamble signature sequence is different from a preamble signature sequence randomly accessed by a UE camping in the second base station;
  • the broadcast unit 152 is configured to The UE broadcasts the scrambling code of the second base station and acquires an indicator channel code channel.
  • the RNC further includes:
  • the receiving unit 153 is configured to receive a random access message forwarded by the second base station and/or the first base station;
  • the indicating unit 154 is configured to instruct the first base station to send a forward import access channel or a high speed downlink shared channel to the UE according to the random access message.
  • the RNC further includes:
  • the merging unit 155 is configured to select and merge the random access messages received by the receiving unit when the receiving unit 153 receives the random access message forwarded by the second base station and the first base station.
  • the RNC provided in this embodiment allows the UE to uplink access from the second base station where the neighboring cell is located or allows the UE to receive the indicator channel of the first base station in the uplink by setting the UE of the first base station. Receiving the acquisition indicator channel of the second base station, and broadcasting the primary scrambling code of the random access preamble to the second base station, so that the second base station can obtain the random access preamble sent by the UE and send the UE to the UE after decoding.
  • the UE may access the uplink in the second base station, and does not need to receive the AICH of the first base station where it is located, and does not need to continue to send to the first base station. Random access to the preamble, thereby suppressing the random access of the UE to the second base.
  • the uplink interference of the station increases the uplink throughput rate of the second base station, and can also save the transmission power of the UE.
  • an embodiment of the present invention provides a system for random access.
  • the random access system includes a radio network control device 10, a second base station 20, a user equipment UE30, and a first base station 40, where the first base station 40 is a base station where the UE 30 resides, and the second The base station 20 is a base station where the neighboring cell of the cell where the first base station is located.
  • the wireless network control device 10 includes:
  • the configuration unit 11 is configured to allow the UE 30 of the first base station 40 to randomly access the second base station 20;
  • the broadcast unit 12 is configured to broadcast the related information of the random access of the second base station 20 to the UE 30 according to the configuration of the configuration unit 11, where the related information includes a preamble signature sequence of the second base station 20, a scrambling code, and an acquisition indicator channel code channel.
  • the UE 30 is configured to learn the configuration, and enters a random access procedure according to the information about the random access; and is further configured to broadcast, to the second base station 20, a primary scrambling code of the random access preamble broadcast by the first base station 40.
  • the random access preamble is decoded according to the primary scrambling code, and the acquisition indicator channel is sent to the UE 30, indicating whether the UE 30 is allowed to uplink.
  • the receiving unit 13 is configured to receive a random access message forwarded by the second base station 20;
  • the indicating unit 14 is configured to instruct the first base station 40 to send a forward import access channel or a high speed downlink shared channel to the UE 30 according to the random access message.
  • the second base station 20 includes:
  • a broadcast receiving unit 21 configured to acquire a primary scrambling code of a random access preamble broadcast by the first base station 40;
  • the preamble obtaining unit 22 is configured to receive a random access preamble sent by the UE 30.
  • the identifying unit 23 is configured to identify, according to the primary scrambling code of the random access preamble received by the broadcast receiving unit 21 and the random access preamble received by the preamble acquiring unit 22, whether the UE 30 is camped on the first base station. 40 UE;
  • the channel sending unit 24 is configured to: when the identifying unit identifies that the UE is a UE that is camped on the first base station, send an acquiring indicator channel to the UE 30, indicating whether the UE 30 can access uplink Specifically, the slot format of the acquisition indicator channel includes a capture indication AI part, and the AI part uses a signature sequence corresponding to a signature of the random access preamble sent by the UE 30, so that the UE 30 detects a signature sequence of the AI part and a signature sequence of the random access preamble Corresponding, the signature sequence of the AI is decoded, and whether uplink access is allowed according to the decoding result: if the decoding result is 1, the UE 30 is allowed to access uplink; otherwise, the UE 30 is not allowed to uplink. In.
  • the access message receiving unit 25 is configured to receive a random access message sent by the UE 30.
  • the forwarding unit 26 is configured to forward the random access message to the radio network controller 10, so that the radio network controller 10 controls the first base station 40 to send an associated channel to the UE30.
  • the user equipment UE30 includes:
  • the broadcast receiving unit 31 is configured to receive information about random access of the second base station 20 broadcast by the radio network controller RNC10, and learn that the first base station is configured to allow uplink access at the second base station 20.
  • the related information includes a preamble signature sequence of the second base station 20, a scrambling code, and an acquisition indicator channel code channel.
  • the threshold detecting unit 32 is configured to detect whether the downlink channel quality of the second base station 20 satisfies the uplink access threshold after the broadcast receiving unit 31 learns that the first base station 40 is configured to allow the uplink access to the second base station 20.
  • the preamble transmitting unit 33 is configured to: when the threshold detecting unit 32 detects that the downlink channel quality of the second base station 20 is higher than the uplink access threshold, according to the broadcast of the preamble signature sequence and the scrambling code of the second base station 20
  • the second base station 20 transmits a random access preamble, so that the second base station 20 acquires the random access preamble; specifically, the preamble transmitting unit 22 uses the preamble signature of the second base station 20 received by the broadcast receiving unit 31.
  • the scrambling code sends the random access preamble to the second base station 20, so that the second base station 20 decodes the random access preamble according to a primary scrambling code of a broadcast random access preamble. And send the acquisition indicator channel to it.
  • the uplink channel receiving unit 34 is configured to receive an acquisition indicator channel that is sent by the second base station 20;
  • the access message sending unit 35 is configured to determine, according to the uplink channel receiving unit, whether the second base station 20 allows uplink access, and if the uplink access is allowed, send a random access message to the second base station 20.
  • the access message sending unit includes: a channel analyzing module, configured to detect an acquiring indicator channel received by the uplink channel receiving unit, and detecting that the sequence of the acquiring indicator channel corresponds to a sequence of the random access preamble Decoding the sequence of the acquisition indicator channel, if the decoding value is 1, the second base station 20 is allowed to access the uplink, and the sending module is configured to analyze the When the second base station 20 allows the UE 30 to access uplink, it sends a random access message to the second base station 20.
  • the downlink channel receiving unit 36 is configured to receive the forward import access channel or the high speed downlink shared channel that is sent by the first base station 40.
  • the first base station 40 is configured to send the forward import access channel or the high speed downlink shared channel to the UE 30 according to the indication of the radio network controller 10.
  • the RNC configuration allows the UE in the serving cell to access the neighboring second base station, and broadcasts the preamble signature, the scrambling code, and the non-serving AICH code channel of the allowed second base station to the UE, and
  • the RACH scrambling code broadcast by a base station informs the second base station, so when the UE detects that the downlink channel quality of a neighboring second base station meets a certain threshold, the uplink access request may be sent to the second base station, as long as The second base station sends a non-serving AICH channel to the UE and instructs the UE to access, and the UE can access the uplink from the second base station, so there is no need to receive the AICH where the serving cell is located, and there is no need to continue to the first base station.
  • the preamble is sent, thereby suppressing the interference of the random access of the UE to the uplink of the second base station, increasing the uplink throughput rate of the second base station, and also saving the transmission power of the UE.
  • an embodiment of the present invention provides a system for random access.
  • the random access system includes a radio network control device RNC 10 ′, a second base station 20 ′, a user equipment UE 30 ′, and a first base station 40 ′, wherein the first base station 40 ′ resides in the UE 30 ′.
  • the base station, the second base station 20' is a base station where a neighboring cell of the cell where the first base station 40' is located.
  • the wireless network control device RNC 10' includes:
  • the configuration unit 11' is configured to allow the UE 30' of the first base station to receive the acquisition indicator channel of the second base station 20' within a time period of receiving the acquisition indicator channel of the first base station 40'.
  • the broadcast unit 12' is configured to broadcast, according to the configuration of the configuration unit, information about random access of the second base station 20' to the UE 30', so that the UE 30' learns the configuration, and according to the
  • the random access related information is used to perform a random access procedure, and is further configured to broadcast, to the second base station 20', a primary scrambling code of the random access preamble broadcast by the first base station 40', so that the second base station
  • the UE 20A decodes the random access preamble according to the primary scrambling code, and sends an acquisition indicator channel to the UE 30' to indicate the UE 30' Whether to allow uplink access.
  • the information about the random access of the second base station 20' includes the scrambling code of the second base station 20' and the acquisition indicator channel.
  • the receiving unit 13' is configured to receive a random access message forwarded by the second base station 20'.
  • the indicating unit 14' is configured to instruct the first base station 40' to send a forward import access channel or a high speed downlink shared channel to the UE 30' according to the random access message.
  • the second base station 20' includes:
  • the broadcast receiving unit 21' is configured to receive a primary scrambling code of the random access preamble broadcasted in the system information block of the first base station 40'.
  • the preamble obtaining unit 22' is configured to acquire a random access preamble sent by the UE 30'. Specifically, the random access preamble is obtained by the preamble obtaining unit 22' by listening to the random access preamble sent by the UE 30' to the first base station 40'.
  • the identifying unit 23' is configured to identify, according to the primary scrambling code of the random access preamble received by the broadcast receiving unit 21' and the random access preamble acquired by the preamble acquiring unit 22', whether the UE 30' is resident The UE remaining in the first base station 40'.
  • the channel sending unit 24' is configured to: when the identifying unit 23' identifies that the UE 30' is a UE that is camped on the first base station 40', send an acquisition indicator channel to the UE 30', indicating the UE 30 'Whether it can be accessed randomly.
  • the channel sending unit 24' includes: a resource evaluation module, configured to: after the preamble acquiring unit monitors the random access preamble, whether the second base station 20' has remaining resources; and a channel processing module, configured to: And when the resource evaluation module evaluates that the second base station 20' has remaining resources, sending the acquisition indicator channel code channel to the UE 30', where the acquisition indicator channel time slot includes an AI part and a guide a frequency Pilot portion, the AI portion being provided with a parameter value indicating whether to allow the UE 30' to access uplink, so that the UE 30' transmits a random access message when the uplink access is allowed, and the Pilot portion is used for
  • the UE 30' performs channel estimation on the acquisition indicator channel; or is further used to repeatedly transmit using the acquisition indicator channel using multiple time slots or transmission time intervals TTI to increase the correct reception probability of the UE.
  • the access message receiving unit 25' is configured to receive a random access message sent by the UE 30'.
  • the forwarding unit 26' is configured to forward the random access message to the radio network controller 10', so that the radio network controller controls 10' that the first base station 40' transmits the relevant channel to the UE 30'.
  • the UE 30' includes:
  • the broadcast receiving unit 31' is configured to receive the scrambling code of the second base station 20' and the acquisition indicator channel code channel broadcast by the radio network controller 10', and learn that the first base station 40' is configured to allow the receiving of the Receiving an indicator channel of the second base station 20' within a time period of acquiring a indicator channel of a base station 40';
  • the preamble transmitting unit 32' is configured to send a random access preamble, so that the second base station 20' acquires the random access preamble. Specifically, the preamble transmitting unit 32' transmits the random access preamble to the first base station 40' where it is located, so that the second base station 20' listens to the random access preamble;
  • the uplink channel receiving unit 33' is configured to receive an acquisition indicator channel that is sent by the second base station 20'.
  • the access message sending unit 34' is configured to determine, according to the acquisition indicator channel, whether the second base station 20' allows uplink access, if uplink access is allowed, and only the acquisition indicator channel is received, The base station 20' transmits a random access message.
  • the access message sending unit 34' includes: a channel analyzing module, configured to detect a parameter value set by the capturing indication AI part of the acquiring indicator channel, whether to allow the UE 30' to access the uplink, and determine according to the parameter value Whether the base station 20' allows the uplink access; the sending module is configured to send the random connection to the base station 20' when the channel analysis module analyzes that the second base station 20' allows the user equipment to access uplink Enter the message.
  • the downlink channel receiving unit 35' is configured to receive the forward import access channel or the high speed downlink shared channel sent by the first base station 40'.
  • the first base station 40' is configured to send the forward import access channel or the high speed downlink shared channel to the UE 30' according to the indication of the radio network controller 10'.
  • the uplink channel receiving unit 33' of the UE 30' is further configured to receive the acquisition indicator channel sent by the first base station 40'; the access message sending unit 34' is further configured to be in the uplink channel.
  • the receiving unit 33' receives the acquisition indicator channel sent by the second base station 20' and the acquisition indicator channel sent by the first base station 40', the receiving unit 33' ignores the acquisition indicator sent by the second base station 20'.
  • the channel forwards the random access message to the first base station 40'.
  • the first base station 40' is further configured to forward the random access message to the RNC 10'.
  • the receiving unit 13' of the RNC is further configured to receive a random access message forwarded by the first base station, and the indicating unit 14' is further configured to indicate, according to the random access message forwarded by the first base station 40', the first base station 40'
  • the UE transmits a forward incoming access channel or a high speed downlink shared channel.
  • the forwarding unit of the second base station 20' is further configured to identify the random access message.
  • the random access message is sent to the second base station 20', and the random access message is forwarded to the radio network controller.
  • the method may be used to determine whether the random access message sent by the UE is sent to itself according to the scrambling code used by the random access message sent by the UE, or according to the random access message sent by the UE.
  • the indication information added by the control part determines whether the random access message is sent to itself.
  • the first base station 40' is further configured to identify the random access message, if the random connection The incoming message is sent to itself, and the random access message is forwarded to the radio network controller.
  • the distinguishing method is the same as the method for distinguishing the second base station 20', and details are not described herein again.
  • the second base station 20' and the first base station 40' may not distinguish the received random access message, but directly forward it to the RNC, where the RNC further includes a selection merging unit, The random access message received by the receiving unit is selected and merged by macro diversity.
  • the RNC configuration allows the UE in the serving cell to access the second base station, broadcast the allowed second base station scrambling code and the non-serving AICH code channel to the UE, and notify the RACH scrambling code broadcast by the first base station.
  • a second base station and the second base station monitors a preamble sent by the UE to the first base station, and when the second base station detects the preamble sent by the UE, if the remaining base resource is available, the non-serving AICH is sent to the UE.
  • the UE is instructed to access the UE.
  • the UE does not need to continue to send the preamble to the first base station, thereby suppressing the interference of the random access of the UE to the uplink of the second base station, increasing the uplink throughput rate of the second base station, and saving the UE. Transmit power.
  • this embodiment provides a base station, including:
  • a receiver 191 configured to acquire a primary scrambling code of a random access preamble broadcast by the radio network control device, and a random access preamble sent by the user equipment UE;
  • the processor 192 is configured to perform decoding according to the primary scrambling code of the random access preamble received by the receiver 191 and the random access preamble, to identify whether the UE is the first one that resides in the neighboring cell.
  • UE of the base station
  • the transmitter 193 is configured to: when the processor 192 identifies that the UE is a UE that is camped on the first base station, send an acquisition indicator channel to the UE, to indicate whether the UE can access uplink .
  • the receiver 191 is configured to receive a random access preamble sent by the UE.
  • the slot format of the acquisition indicator channel sent by the transmitter 193 includes an indication indication AI part, and the AI part uses a signature sequence corresponding to the signature of the random access preamble transmitted by the UE, so that the UE is in the
  • the signature sequence of the AI corresponds to the signature sequence of the random access preamble
  • decoding the signature sequence of the AI and determining, according to the decoding result, whether uplink access is allowed: if the decoding The result is 1, the UE is allowed to access uplink, so that the UE sends a random access message; otherwise, the UE is not allowed to access uplink.
  • the receiver 191 is configured to monitor a random access preamble sent by the UE to the first base station.
  • the processor 192 is configured to: after the receiver 191 monitors the random access preamble, whether the base station has remaining resources;
  • the transmitter 193 is configured to send the acquisition indicator channel to the UE when the processor 192 evaluates that the base station has remaining resources, where the acquisition indicator channel slot includes an AI part and a pilot Pilot part.
  • the AI part is provided with a parameter value indicating whether the UE is allowed to access uplink, so that the UE sends a random access message when the uplink access is allowed, and the Pilot part is used by the UE to the Obtaining an indicator channel for channel estimation; or, further, using the acquisition indicator channel to repeatedly transmit using multiple time slots or transmission time intervals TTI to increase the correct reception probability of the UE.
  • the receiver 191 is further configured to receive a random access message sent by the UE;
  • the transmitter 193 is further configured to forward the random access message to the radio network controller, so that the radio network controller controls the first base station to send the relevant channel to the UE.
  • processor 192 is further configured to: identify the random access message
  • the transmitter is configured to forward the random access message to the radio network controller when the processor 192 recognizes that the random access message is sent to the base station.
  • the base station provided in this embodiment sends a non-serving AICH channel to the UE and instructs the UE to access, so that the UE can access the uplink from the second base station, so the UE does not need to receive the AICH of the first base station. There is no need to continue to send the preamble to the first base station, thereby suppressing the interference of the random access of the UE to the uplink of the second base station, increasing the uplink throughput rate of the second base station, and also saving the transmission power of the UE.
  • this embodiment provides a user equipment UE, including:
  • the transmitter 201 is configured to send a random access preamble, so that the second base station acquires the random access preamble, where the second base station is a base station where a neighboring cell of the cell where the first base station is camped by the UE ;
  • the receiver 202 is configured to receive an acquisition indicator channel that is sent by the second base station.
  • the processor 203 is further configured to determine, according to the acquiring indicator channel, whether the second base station allows uplink access;
  • the transmitter 201 is further configured to: when the processor determines that the second base station allows uplink access, send a random access message to the second base station.
  • the receiver 202 is further configured to receive a preamble signature sequence, a scrambling code, and an acquisition indicator channel code channel of the second base station broadcast by the radio network controller;
  • the processor 203 is further configured to learn, according to the preamble signature sequence, the scrambling code, and the acquisition indicator channel code channel of the second base station that is received by the receiver, that the first base station is configured to allow the UE to uplink in the second base station. And detecting, when the receiver is configured to allow the UE to perform uplink access by the second base station, detecting whether the downlink channel quality of the second base station is higher than an uplink access threshold;
  • the transmitter 201 is further configured to use the broadcasted preamble signature sequence and the scrambling code of the second base station when the processor 203 detects that the downlink channel quality of the second base station is higher than the uplink access threshold. Transmitting the random access preamble to the second base station, so that the second base station decodes the random access preamble, and identifies according to the signature sequence of the random access preamble It is a UE that resides in the neighboring cell, and then sends an acquisition indicator channel thereto.
  • the processor 203 is further configured to: when detecting that the signature sequence of the acquisition indicator channel corresponds to the signature sequence of the random access preamble, decode the signature sequence of the acquisition indicator channel, Determining, by the decoding result, whether the second base station allows uplink access; the transmitter 201 is further configured to: when the processor 203 determines that the second base station allows uplink access, send the random to the second base station Access message.
  • the receiver 202 is configured to receive a scrambling code of the second base station broadcast by the radio network controller and obtain an indicator channel code channel.
  • the processor 203 is further configured to: according to the receiver receiving the scrambling code of the second base station and the acquisition indicator channel code track broadcast by the radio network controller, learn that the first base station is configured to allow the first base station to be received Receiving an acquisition indicator channel sent by the second base station in a time when the indicator channel is obtained;
  • the transmitter 201 is configured to send a random access preamble to the first base station or the second base station where the neighboring cell is located, so that the second base station where the neighboring cell is located acquires the random access preamble.
  • the processor 203 is further configured to: detect a parameter value that is used by the capture indication indication AI part of the acquisition indicator channel that is sent by the second base station to indicate whether to allow uplink access, and determine, according to the parameter value, the parameter value. Whether the second base station allows uplink access;
  • the transmitter 201 is further configured to: when the processor 203 determines that the second base station allows uplink access, Sending a random access message to the second base station.
  • the receiver 202 is further configured to receive an acquisition indicator channel that is sent by the first base station;
  • the processor 203 is further configured to: determine whether the receiver receives the acquisition indicator channel of the first base station when receiving the acquisition indicator channel sent by the second base station;
  • the transmitter 201 sends a random access message to the first base station when the processor 203 determines that the receiver receives the acquisition indicator channel of the first base station.
  • the transmitter 201 is further configured to perform scrambling in the random access message by using a scrambling code of the first base station or the second base station, so that the second base station or the first base station Identifying whether the random access message needs to be forwarded to the radio network controller when receiving the random access message; or for setting indication information in a control part of the random access message, so that the When the second base station or the first base station receives the random access message, it is determined whether the random access message needs to be forwarded to the radio network controller.
  • the receiver 202 is further configured to receive a forward import access channel or a high speed downlink shared channel that is sent by the first base station.
  • the user equipment provided in this embodiment may be uplinked from the second base station where the neighboring cell is located in the uplink or may allow the UE to receive the acquisition indicator channel of the second base station in the time of receiving the acquisition indicator channel of the first base station.
  • the acquisition indicator channel indicates that the UE is allowed to access in the uplink
  • the UE may access the uplink in the second base station, and does not need to receive the AICH of the first base station, and does not need to continue to send the random access preamble to the first base station, thereby
  • the interference of the random access of the UE to the uplink of the second base station is suppressed, the uplink throughput rate of the second base station is increased, and the transmission power of the UE can also be saved.
  • the embodiment provides a radio network control device RNC, including:
  • the processor 211 is configured to configure the user equipment UE of the first base station to access the second base station where the neighboring cell is located, or to configure the UE that allows the first base station to receive the indicator channel of the first base station. Receiving the acquisition indicator channel of the second base station, where the first base station is a base station where the UE is camped, and the second base station is a base station where a neighboring cell of the cell where the first base station is located;
  • a transmitter 212 configured to broadcast, according to a configuration of the processor 211, information about random access of the second base station to the UE, so that the UE learns the configuration, and according to the random access
  • the related information enters a random access procedure, and is further configured to broadcast, to the second base station, the broadcast of the first base station
  • the device accesses the primary scrambling code of the preamble, so that the second base station acquires the random access preamble sent by the UE, and then decodes the random access preamble according to the primary scrambling code, to the The UE sends an acquisition indicator channel.
  • the transmitter 211 is configured to: when the user equipment UE configured to allow the first base station to randomly access the second base station where the neighboring cell is located, broadcast the preamble signature sequence of the second base station to the UE a scrambling code and an acquisition indicator channel code channel, wherein the preamble signature sequence is different from a preamble signature sequence randomly accessed by a UE camping in the second base station; or, when the configuration is configured to allow the The UE of a base station broadcasts the scrambling code of the second base station and acquires an indicator channel code channel to the UE when receiving the acquisition indicator channel of the second base station within a time period of receiving the acquisition indicator channel of the first base station. .
  • the RNC further includes a receiver, configured to receive a random access message forwarded by the second base station and/or the first base station;
  • the transmitter 212 is further configured to: according to the random access message, instruct the first base station to send a forward import access channel or a high speed downlink shared channel to the UE.
  • the processor 211 is further configured to: when the receiver receives the random access message forwarded by the second base station and the first base station, perform selective combining on the random access message received by the receiver.
  • the RNC provided in this embodiment allows the UE to uplink access from the second base station where the neighboring cell is located or allows the UE to receive the indicator channel of the first base station in the uplink by setting the UE of the first base station. Receiving the acquisition indicator channel of the second base station, and broadcasting the primary scrambling code of the random access preamble to the second base station, so that the second base station can obtain the random access preamble sent by the UE and send the UE to the UE after decoding.
  • the UE may access the uplink in the second base station, and does not need to receive the AICH of the first base station where it is located, and does not need to continue to send to the first base station.
  • the preamble is randomly accessed, thereby suppressing the interference of the random access of the UE to the uplink of the second base station, increasing the uplink throughput rate of the second base station, and also saving the transmission power of the UE.
  • an interference control method, device, and system for random access by setting a UE of a first base station, allowing the UE to uplink access from a second base station where the neighboring cell is located or Allowing the UE to receive the acquisition indicator channel of the second base station within the time of receiving the acquisition indicator channel of the first base station, and broadcasting the primary scrambling code of the random access preamble to the second base station, thereby enabling the second base station to acquire Sending a random access preamble to the UE and sending an acquisition indication to the UE after decoding a channel, when the acquisition indicator channel indicates that the UE is allowed to access uplink, the UE may access the uplink in the second base station, and does not need to receive the AICH of the first base station where it is located, and does not need to continue to send random access to the first base station.
  • the preamble thereby suppressing the interference of the random access of the UE to the uplink of the second base station, increases the uplink throughput rate of
  • the device for performing the random access interference control in the foregoing embodiment is only illustrated by the division of the foregoing functional modules. In actual applications, the foregoing functions may be allocated according to requirements. Different functional modules are completed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • the method, the device and the system for the interference control of the random access provided by the foregoing embodiments are in the same concept, and the specific implementation process is described in the method embodiment, and details are not described herein again.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明公开了一种随机接入的干扰控制方法、设备及系统，属于通讯技术领域。所述方法包括：获取无线网络控制设备广播的随机接入前导码的主扰码；获取用户设备UE发送的随机接入前导码；根据所述广播的随机接入前导码的主扰码和所述UE发送的随机接入前导码，识别出所述UE为驻留在所述第一基站的UE；向所述UE下发获取指示符信道，指示所述UE是否能够上行接入。本发明通过第一基站邻区所在的第二基站向UE下发获取指示符信道，指示UE在第二基站上行接入，因此UE不需要再接收其所在第一基站的获取指示符信道AICH，无需继续向第一基站发送随机接入前导码，从而抑制了UE的随机接入对第二基站上行的干扰，增加了第二基站的上行吞吐率，同时也能够节省UE的发送功率。

Description

一种随机接入的干扰控制方法、设备及系统 技术领域
本发明涉通讯技术领域，特别涉及一种随机接入的干扰控制方法、设备及系统。
背景技术
3GPP(The 3rd Generation Partnership Project，第三代伙伴合作计划)计划在UMTS R12(Universal Mobile Telecommunications System，通用移动通信系统)中引入HetNet(Heterogeneous Network，异构网络)技术。HetNet是一种多层次组网的无线接入网技术。与传统的无线接入网相比，HetNet在宏网络层基础上增加了一个或多个微网络层，微网络中的基站也被称为微站或LPN(Low Power Node，低功率节点)。与单一的宏网络扩容相比，异构网具有成本低，易部署和维护等优点，是当前无线通信研究中的热点。但是，HetNet中宏站和微站的额定发送功率不相同，这将在RACH(Random Access Channel，随机接入信道)随机接入过程中带来干扰问题：在HetNet中，对于驻留于宏站的UE如果进行RACH ramping(功率渐增)接入，UE发送的preamble(随机接入前导码)会给微站造成突发干扰。该突发干扰会导致微站内UE的上行数据传输无法正确被基站接收，产生瞬时误块，影响了微站的吞吐率。进一步的，RNC(Radio Network Controller，无线网络控制器)会由于这些误块的影响而在外环功控中提升微小区内UE的SIRtarget(目标信噪比)，已使这些UE能提升上行发射功率来降低干扰影响，UE功率的抬升会造成微站RoT(热噪水平)提升，影响微站的上行容量。因此在随机接入时需要对干扰进行控制。
现有技术的随机接入的干扰控制方法是由宏站将本小区PRACH info(PRACH信息)和PRACH preamble control parameters(PRACH前导码控制参数)中广播的preamble主扰码告知微站；微站尝试译码宏站UE(user equipment，用户设备)的preamble，对宏站UE发送的preamble进行干扰消除，微站译码preamble后可以根据定时关系识别RACH(Random Access Channel， 随机接入信道)message part(消息部分)造成的突发干扰，并通知RNC在外环功控中将preamble和message引起的误块的影响移除，避免外环功控带来的UE上行发送功率抬升。或者由宏站直接上报RACH UE给RNC，RNC在外环功控中将这些UE的干扰造成的误块移除。
在实现本发明的过程中，发明人发现现有技术至少存在以下问题：
现有技术只解决了如何剔除RACH UE产生的突发干扰对外环功控造成的影响，并没有对干扰进行抑制并解决突然干扰带来的吞吐量影响。
发明内容
为了解决现有技术的问题，本发明实施例提供了一种随机接入的干扰控制方法、设备及系统。所述技术方案如下：
第一方面，提供了一种随机接入的干扰控制方法，所述方法包括：获取无线网络控制设备广播的随机接入前导码的主扰码；获取用户设备UE发送的随机接入前导码；根据所述广播的随机接入前导码的主扰码和所述UE发送的随机接入前导码，识别出所述UE为驻留在相邻小区所在的第一基站的UE；向所述UE下发获取指示符信道，指示所述UE是否能够上行接入。
结合第一方面，在第一方面的第一种可能的实现方式中，所述获取用户设备UE发送的随机接入前导码之前，还包括：接收所述UE发送的随机接入前导码。
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述向所述UE下发获取指示符信道，指示所述UE是能够上行接入，包括：向所述UE发送所述获取指示符信道，所述获取指示符信道的时隙格式包括捕获指示AI部分，所述AI部分使用与所述UE发送的随机接入前导码的签名序列对应的签名序列，以使所述UE在检测到所述AI的签名序列与随机接入前导码的签名序列对应时，对所述AI的签名序列进行译码，并根据译码结果判定是否允许所述UE上行接入。
结合第一方面，在第一方面的第三种可能的实现方式中，所述获取用户设备UE发送的随机接入前导码之前，还包括：接收所述UE发送的随机接入前导码或对所述UE向所述第一基站发送的随机接入前导码进行监听。
结合第一方面的第三种可能的实现方式，在第一方面的第四种可能的实现 方式中，所述向所述UE下发获取指示符信道，指示所述UE是否能够上行接入，包括：评估剩余资源；若有剩余资源，则向所述UE下发获取指示符信道，所述获取指示符信道的时隙结构包括AI部分，所述AI部分设有指示是否允许所述UE上行接入的参数值，以使所述UE在被允许上行接入时发送随机接入消息。
结合第一方面的第一种至第四种任一种可能的实现方式，在第一方面的第五种可能的实现方式中，向所述UE下发获取指示符信道，包括利用所述获取指示符信道使用多个时隙或传输时间间隔重复发送。
结合第一方面的第一种至第五种任一种可能的实现方式，在第一方面的第六种可能的实现方式中，还包括：接收所述UE发送的随机接入消息；将所述随机接入消息转发给无线网络控制器，以使所述无线网络控制器控制所述第一基站向UE发送前向导入接入信道或高速下行链路共享信道。
结合第一方面的第六种可能的实现方式，在第一方面的第七种可能的实现方式中，所述将所述随机接入消息转发给无线网络控制器，包括：对所述随机接入消息进行识别，若其自身为所述随机接入消息的发送目标，则根据所述随机接入消息向所述无线网络控制器发送上行链路。
结合第一方面的第七种可能的实现方式，在第一方面的第八种可能的实现方式中，所述对所述随机接入消息进行识别，包括：根据所述UE发送的随机接入消息使用的扰码进行区分，判断所述UE发送的随机接入消息的发送目标；或者根据所述UE发送的随机接入消息的控制部分增加的指示信息判断所述随机接入消息的发送目标。
第二方面，提供了一种随机接入的干扰控制方法，所述方法包括：发送随机接入前导码，以使邻区所在的第二基站获取所述随机接入前导码，所述第二基站是所述UE驻留的第一基站所在小区的邻区所在的基站；接收所述第二基站下发的获取指示符信道；根据所述第二基站下发的获取指示符信道的指示判定所述第二基站是否允许在所述第二基站上行接入，若允许在所述第二基站上行接入，则向所述第二基站发送随机接入消息。
结合第二方面，在第二方面的第一种可能的实现方式中，所述发送随机接入前导码之前，还包括：接收无线网络控制器广播的所述第二基站的前导签名序列、扰码及获取指示符信道码道，获知其所在的第一基站配置为允许其在所 述第二基站上行接入；检测到所述第二基站的下行信道质量高于上行接入门限；所述发送随机接入前导码，以使第二基站获取所述随机接入前导码；包括：使用所述广播的所述第二基站的前导签名序列及扰码向所述第二基站发送所述随机接入前导码，以使所述第二基站对所述随机接入前导码进行译码，并根据所述随机接入前导码的签名序列识别出其为驻留在所述第一基站的UE，从而向其下发获取指示符信道。
结合第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，所述检测到所述第二基站的下行信道质量高于上行接入门限，包括，获取相关参数，所述相关参数包括所述M_new、CIOnew、Mbest及RRACH；根据所述相关参数判断公式10logM_new+CIOnew≥10logMbest+RRACH是否成立，若成立，则确认检测到所述第二基站的下行信道质量高于上行接入门限；其中，所述10logM_new为所述第二基站的下行信道质量；所述M_new为第二基站的如下参数中的一种或多种组合：公共导频信道接收信号码功率CPICH_RSCP、码片功率噪声比Ec/N0、控制信道的信道质量、同步信道的信道质量；所述CIO_new为所述第二基站所在的小区测量值偏置；所述M_best为所述第一基站所在的小区的信道质量；所述RRACH为测量报告范围。
结合第二方面或第二方面的第一种或第二种可能的实现方式，在第二方面的第三种可能的实现方式中，根据所述第二基站下发的获取指示符信道的指示判定所述第二基站是否允许上行接入，包括：检测到所述第二基站下发的获取指示符信道的签名序列与所述随机接入前导码的签名序列对应，对所述获取指示符信道的签名序列进行译码，根据译码结果判断所述第二基站是否允许上行接入。
结合第二方面或第二方面的第一至三种任一可能的实现方式，在第二方面的第四种可能的实现方式中，所述向所述第二基站发送随机接入消息，包括：使用所述第二基站的扰码及扩频码向所述第二基站发送随机接入消息，所述扩频码预先约定或通过广播获取。
结合第二方面，在第二方面的第五种可能的实现方式中，所述发送随机接入前导码之前，还包括：接收无线网络控制器广播的所述第二基站的扰码及获取指示符信道码道，获知其所在的第一基站配置为允许其在接收所述第一基站下发的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道；所 述发送随机接入前导码，包括：向所述第一基站或第二基站发送随机接入前导码，以使所述第二基站获取到所述随机接入前导码。
结合第二方面的第五种可能的实现方式，在第二方面的第六种可能的实现方式中，所述根据所述第二基站下发的获取指示符信道的指示判定所述第二基站是否允许上行接入，包括：检测所述第二基站下发的获取指示符信道的捕获指示AI部分设置的用于指示是否允许所述UE随机接入的参数值，根据所述参数值判定所述第二基站是否允许上行接入。
结合第二方面的第五种或第六种可能的实现方式，在第二方面的第七种可能的实现方式中，所述向所述第二基站发送随机接入消息之前，还包括：判断是否接收到所述第一基站的获取指示符信道；如果是，则向所述第一基站发送随机接入消息。
结合第二方面或第二方面的第一至七种任一可能的实现方式，在第二方面的第八种可能的实现方式中，所述方法还包括：接收所述第一基站发送的前向导入接入信道或高速下行链路共享信道。
结合第二方面或第二方面的第一至八种任一可能的实现方式，在第二方面的第九种可能的实现方式中，所述随机接入消息使用所述第一基站或者所述第二基站的扰码进行加扰，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器；或者所述随机接入消息的控制部分设置指示信息，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器。
第三方面，提供一种随机接入的干扰控制方法，所述方法包括：配置允许用户设备UE在第二基站上行接入或者允许所述UE在接收第一基站下发的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道，其中，所述第一基站为所述UE驻留的基站，所述第二基站为所述第一基站所在小区的邻区所在的基站；根据所述配置向所述UE广播所述第二基站的随机接入的相关信息，以使所述UE根据所述随机接入的相关信息进入随机接入流程；根据所述配置向所述第二基站发送所述第一基站广播的随机接入前导码的主扰码，以使所述第二基站获取所述UE发送的随机接入前导码后，根据所主扰码对所述随机接入前 导码进行译码，向所述UE发送获取指示符信道，指示所述UE是否允许随机接入。
结合第三方面，在第三方面的第一种可能的实现方式中，当所述配置为允许第一基站的用户设备UE随机接入第二基站时，所述随机接入的相关信息包括：所述第二基站的前导签名序列、扰码及获取指示符信道码道，其中所述前导签名序列与驻留在所述第二基站内的UE随机接入的前导签名序列不同；当所述配置为允许所述UE在接收所述第一基站下发的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道时，所述随机接入的相关信息包括：所述第二基站的扰码及获取指示符信道码道。
结合第三方面或第三方面的第一种可能的实现方式，在第三方面的第二种可能的实现方式中，还包括：接收所述第二基站和/或所述第一基站转发的随机接入消息；根据所述随机接入消息指示所述第一基站向所述UE发送前向导入接入信道或高速下行链路共享信道。
结合第三方面的第二种可能的实现方式，在第三方面的第三种可能的实现方式中，接收到所述第二基站和所述第一基站转发的随机接入消息之后，还包括：对所述随机接入消息进行选择合并。
第四方面，提供了一种基站，包括：广播接收单元，用于获取无线网络控制设备广播的随机接入前导码的主扰码；前导码获取单元，用于获取用户设备UE发送的随机接入前导码；识别单元，用于根据所述广播的随机接入前导码的主扰码和所述UE发送的随机接入前导码，识别出所述UE是否为驻留在相邻小区所在的第一基站的UE；信道发送单元，用于在所述识别单元识别出所述UE为驻留在所述第一基站的UE时，向所述UE下发获取指示符信道，指示所述UE是否能够上行接入。
结合第四方面，在第四方面的第一种可能的实现方式中，所述前导码获取单元获取用于：接收所述UE发送的随机接入前导码；所述信道发送单元发送的所述获取指示符信道的时隙格式包括捕获指示AI部分，所述AI部分使用与所述UE发送的随机接入前导码的签名序列对应的签名序列，以使所述UE在检测到所述AI的签名序列与所述随机接入前导码的签名序列对应时，对所述AI的签名序列进行译码，并根据译码结果判定是否允许上行接入。
结合第四方面的第一种可能的实现方式，在第四方面的第二种可能的实现方式中，所述前导码获取单元获取用于监听所述UE向所述第一基站发送的随机接入前导码；所述信道发送单元，包括：资源评估模块，用于在所述前导码获取单元监听到所述随机接入前导码之后，评估所述基站是否有剩余资源；信道处理模块，用于在所述资源评估模块评估到所述基站有剩余资源时，向所述UE发送所述获取指示符信道，其中，所述获取指示符信道时隙包括AI部分及导频Pilot部分，所述AI部分设有指示是否允许所述UE随机接入的参数值，以使所述UE在被允许随机接入时发送随机接入消息，所述Pilot部分用于所述UE对所述获取指示符信道进行信道估值；或者，还用于利用获取指示符信道使用多个时隙或传输时间间隔TTI重复发送以增大所述UE的正确接收概率。
结合第四方面、第四方面的第一种或第二种可能实现的方式，在第四方面的第三种可能的实现方式中，还包括：接入消息接收单元，用于接收所述UE发送的随机接入消息；转发单元，用于将所述随机接入消息转发给无线网络控制器，以使所述无线网络控制器控制所述第一基站向UE发送相关信道。
结合第四方面的第三种可能实现的方式，在第四方面的第四种可能的实现方式中，所述转发单元，还用于对所述随机接入消息进行识别，若所述随机接入消息是发给所述基站的，则将所述随机接入消息转发给所述无线网络控制器。
第五方面，提供一种用户设备，包括：前导码发送单元，用于发送随机接入前导码，以使第二基站获取所述随机接入前导码，所述第二基站是所述UE驻留的第一基站所在小区的邻区所在的基站；上行信道接收单元，用于接收所述第二基站下发的获取指示符信道；接入消息发送单元，用于根据所述上行信道接收单元接收的获取指示符信道判定所述第二基站是否允许上行接入，若允上行机接入，则向所述第二基站发送随机接入消息。
结合第五方面，在第五方面的第一种可能的实现方式中，还包括：广播接收单元，用于接收无线网络控制器广播的所述第二基站的前导签名序列、扰码及获取指示符信道码道，获知其所在的第一基站配置为允许所述UE在所述第二基站上行接入；门限检测单元，用于在所述广播接收单元获知第一基站配置为允许所述UE在所述第二基站上行接入时，检测所述第二基站的下行信道质量是否高于上行接入门限；所述前导码发送单元，用于发送随机接入前导码，包括， 在所述门限检测单元检测到所述第二基站的下行信道质量高于所述上行接入门限时，使用所述广播的所述第二基站的前导签名序列及扰码向所述第二基站发送所述随机接入前导码，以使所述第二基站所述对所述随机接入前导码进行译码，并根据所述随机接入前导码的签名序列识别出其为驻留在邻小区所在的UE，从而向其下发获取指示符信道。
结合第五方面的第一种可能实现的方式，在第五方面的第二种可能的实现方式中，所述接入消息发送单元，包括：信道分析模块，用于检测所述上行信道接收单元接收的获取指示符信道，在检测到所述获取指示符信道的签名序列与所述随机接入前导码的签名序列对应时，对所述获取指示符信道的签名序列进行译码，根据译码结果判断所述第二基站是否允许上行接入；发送模块，用于在所述信道分析模块判断所述第二基站允许上行接入时，向所述第二基站发送随机接入消息。
结合第五方面，在第五方面的第三种可能的实现方式中，还包括：广播接收单元，用于接收无线网络控制器广播的所述第二基站的扰码及获取指示符信道，获知其所在的第一基站配置为允许其在接收所述第一基站下发的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道；所述前导码发送单元用于发送随机接入前导码，以使第二基站获取所述随机接入前导码。
结合第五方面或第五方面的第三种可能实现的方式，在第五方面的第四种可能的实现方式中，所述接入消息发送单元，包括：信道分析模块，用于检测所述行信道接收单元接收的获取指示符信道的捕获指示AI部分设置的用于指示是否允许上行接入的参数值，根据所述参数值判定所述第二基站是否允许上行接入；发送模块，用于在所述信道分析模块判定所述第二基站允许上行接入时，向所述第二基站发送随机接入消息。
结合第五方面的第三种或第四种可能实现的方式，在第五方面的第五种可能的实现方式中，所述上行信道接收单元，还用于接收所述第一基站下发的获取指示符信道；所述接入消息发送单元，还用于在所述上行信道接收单元同时收到所述第二基站下发的获取指示符信道与所述第一基站下发的获取指示符信道时，向所述第一基站发送随机接入消息。
结合第五方面的第三至五种任一可能实现的方式，在第五方面的第六种可能的实现方式中，所述接入消息发送单元，还用于在所述随机接入消息中使用 所述第一基站或者所述第二基站的扰码进行加扰，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器；或者还用于在所述随机接入消息的控制部分设置指示信息，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器。
结合第五方面或第五方面的第一种至第六种中任一种可能实现的方式，在第五方面的第七种可能的实现方式中，还包括：下行信道接收单元，用于接收所述第一基站发送的前向导入接入信道或高速下行链路共享信道。
第六方面，提供一种无线网络控制设备，包括：配置单元，用于配置用户设备UE在第二基站上行接入，或者用于配置允许所述UE在接收第一基站下发的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道，其中，所述第一基站为所述UE驻留的基站，所述第二基站为所述第一基站所在小区的邻区所在的基站；广播单元，用于根据所述配置单元的配置向所述UE广播所述第二基站的随机接入的相关信息，以使所述UE获知所述配置，并根据所述随机接入的相关信息进入随机接入流程；还用于向所述第二基站发送所述第一基站广播的随机接入前导码的主扰码，以使所述第二基站获取所述UE发送的随机接入前导码后，根据所主扰码对所述随机接入前导码进行译码，向所述UE发送获取指示符信道。
结合第六方面，在第六方面的第一种可能的实现方式中，当所述配置为允许第一基站的用户设备UE随机接入第二基站时，所述广播单元，用于向所述UE广播所述第二基站的前导签名序列、扰码及获取指示符信道，其中所述前导签名序列与驻留在所述第二基站内的UE随机接入的前导签名序列不同；当所述配置为允许所述UE在接收所述第一基站下发的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道时，所述广播单元，用于向所述UE广播所述第二基站的扰码及获取指示符信道码道。
结合第六方面或第六方面的第一种可能实现的方式，在第六方面的第二种可能的实现方式中，还包括：接收单元，用于接收所述第二基站和/或所述第一基站转发的随机接入消息；指示单元，用于根据所述随机接入消息指示所述第一基站向所述UE发送前向导入接入信道或高速下行链路共享信道。
结合第六方面的第二种可能实现的方式，在第六方面的第三种可能的实现方式中，还包括：选择合并单元，用于在所述接收单元接收到所述第二基站和所述第一基站转发的随机接入消息时，对所述接收单元接收的随机接入消息进行选择合并。
第七方面，提供一种随机接入系统，包括：第四方面提供的任一种实现方式所述的基站；第五方面提供的任一种实现方式所述的驻留在所述基站所在小区的邻区所在的基站的用户设备UE；第六方面提供的任一种实现方式所述的无线网络控制器；所述UE驻留的基站，用于根据所述无线网络控制器的指示向所述UE发送所述前向导入接入信道或所述高速下行链路共享信道。
第八方面，提供了一种基站，包括：接收机，用于获取无线网络控制设备广播的随机接入前导码的主扰码以及用户设备UE发送的随机接入前导码；处理器，用于根据所述广播的随机接入前导码的主扰码和所述UE发送的随机接入前导码，识别出所述UE是否为驻留在所述第一基站的UE；发送机，用于在所述处理器识别出所述UE为驻留在所述第一基站的UE时，向所述UE下发获取指示符信道，指示所述UE是否能够上行接入。
结合第八方面，在第八方面的第一种可能的实现方式中，所述接收机用于，接收所述UE发送的随机接入前导码；所述发送机发送的所述获取指示符信道的时隙格式包括捕获指示AI部分，所述AI部分使用与所述UE发送的随机接入前导码的签名序列对应的签名序列，以使所述UE在检测到所述AI的签名序列与所述随机接入前导码的签名序列对应时，对所述AI的签名序列进行译码，并根据译码结果判定是否允许上行接入。
结合第八方面，在第八方面的第二种可能的实现方式中，所述接收机，用于监听所述UE向所述第一基站发送的随机接入前导码；所述处理器，用于在所述接收机监听到所述随机接入前导码之后，评估所述基站是否有剩余资源；所述发送机还用于在所述处理器评估到所述基站有剩余资源时，向所述UE发送所述获取指示符信道，其中，所述获取指示符信道时隙包括AI部分及导频Pilot部分，所述AI部分设有指示是否允许所述UE上行接入的参数值，以使所述UE在被允许上行接入时发送随机接入消息，所述Pilot部分用于所述UE对所述获 取指示符信道进行信道估值；或者，还用于利用所述获取指示符信道使用多个时隙或传输时间间隔TTI重复发送以增大所述UE的正确接收概率。
结合第八方面、第八方面的第一种或第二种可能实现的方式，在第八方面的第三种可能的实现方式中，所述接收机，还用于接收所述UE发送的随机接入消息；所述发送机，还用于将所述随机接入消息转发给无线网络控制器，以使所述无线网络控制器控制所述第一基站向UE发送相关信道。
结合第八方面的第三种可能实现的方式，在第八方面的第四种可能的实现方式中，所述处理器，还用于对所述随机接入消息进行识别；所述发送机，还用于在所述处理器识别出所述随机接入消息是发给所述基站时，则将所述随机接入消息转发给所述无线网络控制器。
第九方面，提供一种用户设备，包括：发送机，用于发送随机接入前导码，以使第二基站获取所述随机接入前导码，所述第二基站为所述UE驻留的第一基站所在小区的邻区所在的基站；接收机，用于接收所述第二基站下发的获取指示符信道；处理器，用于根据所述接收机接收的获取指示符信道判定所述第二基站是否允许上行接入；所述发送机，还用于在所处理器判定所述第二基站允许上行接入时，向所述第二基站发送随机接入消息。
结合第九方面，在第九方面的第一种可能的实现方式中，所述接收机，用于接收无线网络控制器广播的所述第二基站的前导签名序列、扰码及获取指示符信道码道；所述处理器，还用于根据所述接收机接收的所述第二基站的前导签名、扰码及获取指示符信道码道获知第一基站配置为允许所述UE在所述第二基站上行接入；以及用于在获知第一基站配置为允许所述UE在所述第二基站上行接入时，检测所述第二基站的下行信道质量是否高于上行接入门限；所述发送机，用于在所述处理器检测到所述第二基站的下行信道质量高于所述上行接入门限时，使用所述广播的所述第二基站的前导签名序列及扰码向所述第二基站发送所述随机接入前导码，以使所述第二基站所述对所述随机接入前导码进行译码，并根据所述随机接入前导码的签名序列识别出其为驻留在邻小区所在的UE，从而向其下发获取指示符信道。
结合第九方面或第九方面的第一种可能实现的方式，在第九方面的第二种可能的实现方式中，所述处理器，还用于在检测到所述获取指示符信道的签名 序列与所述随机接入前导码的签名序列对应时，对所述获取指示符信道的签名序列进行译码，根据译码结果判断所述第二基站是否允许上行接入；所述发送机，还用于在所述处理器判断所述第二基站允许上行接入时，向所述第二基站发送随机接入消息。
结合第九方面，在第九方面的第三种可能的实现方式中，所述接收机，用于接收无线网络控制器广播的所述第二基站的扰码及获取指示符信道码道；所述处理器，还用于根据所述接收机接收无线网络控制器广播的所述第二基站的扰码及获取指示符信道码道获知其所在的第一基站配置为允许其在接收所述第一基站的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道；所述发送机：用于向所述第一基站或所述第二基站发送随机接入前导码，以使第二基站获取所述随机接入前导码。
结合第九方面的第三种可能实现的方式，在第九方面的第四种可能的实现方式中，所述处理器，还用于检测所述第二基站下发的获取指示符信道的捕获指示AI部分设置的用于指示是否允许上行接入的参数值，根据所述参数值判定所述第二基站是否允许上行接入；所述发送机，还用于在所述处理器判定所述第二基站允许上行接入时，向所述第二基站发送随机接入消息。
结合第九方面的第三种或第四种可能实现的方式，在第九方面的第五种可能的实现方式中，所述接收机，还用于接收所述第一基站下发的获取指示符信道；所述处理器，还用于判断所述接收机在接收到所述第二基站下发的获取指示符信道时，是否接收到所述第一基站的获取指示符信道；所述发送机，在所述处理器判断所述接收机接收到所述第一基站的获取指示符信道时，忽略所述第二基站下发的获取指示符信道，向所述第一基站发送随机接入消息。
结合第九方面的第三至五种任一可能实现的方式，在第九方面的第六种可能的实现方式中，所述发送机，还用于在所述随机接入消息中使用所述第一基站或者所述第二基站的扰码进行加扰，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器；或者还用于在所述随机接入消息的控制部分设置指示信息，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器。
结合第九方面或第九方面第一种至第六种中任一种可能实现的方式，在第 九方面的第七种可能的实现方式中，所述接收机，还用于接收所述第一基站发送的前向导入接入信道或高速下行链路共享信道。
第十方面，提供一种无线网络控制设备，包括：处理器，用于配置允许用户设备UE在邻区所在的第二基站上行接入，或者用于配置允许所述UE在接收第一基站下发的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道，其中，所述第一基站为所述UE驻留的基站，所述第二基站为所述第一基站所在小区的邻区所在的基站；发送机，用于根据所述处理器的配置向所述UE广播所述第二基站的随机接入的相关信息，以使所述UE获知所述配置，并根据所述随机接入的相关信息进入随机接入流程；还用于向所述第二基站发送所述第一基站广播的随机接入前导码的主扰码，以使所述第二基站获取所述UE发送的随机接入前导码后，根据所主扰码对所述随机接入前导码进行译码，向所述UE发送获取指示符信道。
结合第十方面，在第十方面的第一种可能的实现方式中，所述发送机，用于当所述配置为允许第一基站的用户设备UE随机接入第二基站时，向所述UE广播所述第二基站的前导签名序列、扰码及获取指示符信道码道，其中所述前导签名序列与驻留在所述第二基站内的UE随机接入的前导签名序列不同；或者，所述发送机，用于当所述配置为允许所述第一基站的UE在接收第一基站的获取指示符信道的时间内接收所述第二基站的获取指示符信道时，向所述UE广播所述第二基站的扰码及获取指示符信道码道。
结合第十方面或第十方面的第一种可能实现的方式，在第十方面的第二种可能的实现方式中，还包括接收机，所述接收机，用于接收所述第二基站和/或所述第一基站转发的随机接入消息；所述发送机，还用于根据所述随机接入消息指示所述第一基站向所述UE发送前向导入接入信道或高速下行链路共享信道。
结合第十方面的第二种可能实现的方式，在第十方面的第三种可能的实现方式中，所述处理器，还用于所述接收机在接收到所述第二基站和所述第一基站转发的随机接入消息时，对所述接收机接收的随机接入消息采用宏分集方式做选择合并。
本发明实施例提供的技术方案带来的有益效果是：
通过对UE驻留的第一基站进行设置，允许UE可以在上行从相邻的小区所在的第二基站上行接入或者允许UE可以在接收第一基站的获取指示符信道的时间内接收第二基站的获取指示符信道，并向第二基站广播随机接入前导码的主扰码，因此能够使第二基站在获取到UE发送的随机接入前导码并在译码后向UE发送获取指示符信道，当所述第二基站下发的获取指示符信道指示允许UE上行接入时，UE可在第二基站上行接入，因此不需要再接收其所在第一基站的获取指示符信道，无需继续向第一基站发送随机接入前导码，从而抑制了UE的上行接入对第二基站上行的干扰，增加了第二基站的上行吞吐率，同时也能够节省UE的发送功率。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的UE在HetNet中所处场景示意图；
图2是本发明实施例一提供的随机接入的干扰控制方法的流程图；
图3是本发明实施例二提供的随机接入的干扰控制方法的流程图；
图4是本发明实施例三提供的随机接入的干扰控制方法的流程图；
图5是本发明实施例四提供的随机接入的干扰控制方法的流程图；
图6是本发明实施例四提供的方法中non-serving AICH的时隙格式示意图；
图7是本发明实施例四中下行UE从宏站接收相关信道的方法流程图；
图8是本发明实施例五提供的一种随机接入的干扰控制方法的流程图；
图9是本发明实施例五的方法中non-serving AICH的时隙格式示意图；
图10是本发明实施例五提供的方法中UE在RACH过程中接收本小区AICH的时间内接收宏站广播的LPN的non-serving AICH的方法流程图；
图11是本发明实施例六提供的一种基站的结构示意图；
图12、图13是本发明实施例七提供的一种用户设备的结构示意图；
图14本发明实施例八提供的一种用户设备的结构示意图；
图15、图16本发明实施例九提供的一种无线网络控制设备的结构示意图；
图17是本发明实施例十提供的一种随机接入的系统示意图；
图18是本发明实施例十一提供的一种随机接入的系统示意图；
图19是本发明实施例十二提供的一种基站的结构示意图；
图20是本发明实施例十三提供的一种用户设备的结构示意图；
图21是本发明实施例十四提供的一种无线网络控制设备的结构示意图。
具体实施方式
发明人通过研究发现，在HetNet中，如图1所示，对于驻留于第一基站的UE进行RACH ramping接入，UE发送的preamble会给邻区所在的第二基站造成突发干扰，主要是因为当UE发送的preamble已能够被第二基站检测到时并不能被第一基站检测到，UE会继续提升preamble功率直到收到了第一基站的E-AI/AI(Enhanced-Acquisition Indicatior，增强捕获指示)或达到最大preamble发送次数。这个过程中，UE的preamble都会给第二基站造成突发干扰，并且该干扰会逐步增大直到UE传输完PRACH message为止。而在HetNet同频组网中，处于CELL_FACH的UE(Forward Access Channel，前向接入信道)如果能够检测到邻区第二基站(LPN)但并没有达到小区重选条件，UE在上行R99 RACH接入中可以接入LPN，因此，通过第二基站向UE下发响应，可以解决第一基站边缘UE在随机接入时preamble对第二基站的干扰。具体的，RNC将第一基站IE“PRACH info”或IE“PRACH preamble control parameters”中广播的RACH preamble主扰码告知第二基站，第二基站接收并对第一基站UE的preamble进行译码后，通过向UE发送获取指示符信道non-serving AICH使UE接入第二基站。
为使本发明的目的、技术方案和优点更加清楚，下面以R99 RACH为例，结合附图对本发明实施方式作进一步地详细描述，实际应用中，也可应用于其他版本的RACH。
实施例一
参见图2，本实施例提供了一种随机接入的干扰控制方法，包括：
201、获取无线网络控制设备广播的随机接入前导码的主扰码；
202、获取用户设备UE发送的随机接入前导码；
203、根据所述广播的随机接入前导码的主扰码和所述UE发送的随机接入前导码，识别出所述UE为驻留在相邻小区所在的第一基站的UE；
204、向所述UE下发获取指示符信道，指示所述UE是否能够上行接入。
本实施例中，如果接收所述UE发送的随机接入消息，还包括：
将所述随机接入消息转发给无线网络控制器，以使所述无线网络控制器控制所述第一基站向UE发送前向导入接入信道或高速下行链路共享信道。
其中，将所述随机接入消息转发给无线网络控制器，包括：
对所述随机接入消息进行识别，若其自身为所述随机接入消息的发送目标，则根据所述随机接入消息向所述无线网络控制器发送上行链路。
进一步的，对所述随机接入消息进行识别，包括：
根据所述UE发送的随机接入消息使用的扰码进行区分，判断所述UE发送的随机接入消息的发送目标；或者，
根据所述UE发送的随机接入消息的控制部分增加的指示信息判断所述随机接入消息的发送目标。
在第一种场景下，获取用户设备UE发送的随机接入前导码之前，还包括接收所述UE发送的随机接入前导码获。
其中，向所述UE下发获取指示符信道，指示所述UE是能够上行接入，包括：
向所述UE发送所述获取指示符信道，所述获取指示符信道的时隙格式包括捕获指示AI部分，所述AI部分使用与所述UE发送的随机接入前导码的签名序列对应的签名序列，以使所述UE在检测到所述AI的签名序列与所述随机接入前导码的签名序列对应时，对所述AI的签名序列进行译码，并根据译码结果判定是否允许上行接入。
第二种场景下，获取用户设备UE发送的随机接入前导码，包括：
接收所述UE发送的随机接入前导码；或者
对所述UE向所述第一基站发送的随机接入前导码进行监听。
其中，向所述UE下发获取指示符信道，指示所述UE是否能够上行接入，包括：
评估剩余资源；
若有剩余资源，则向所述UE下发获取指示符信道，所述获取指示符信道的时隙结构包括AI部分；所述AI部分设有指示是否允许所述UE上行接入的参数值。
进一步的，向所述UE下发获取指示符信道，包括利用所述获取指示符信道使用多个时隙或传输时间间隔重复发送以增大所述UE的正确接收概率。
本实施例提供的上述方法，由LPN向该UE下发non-serving AICH信道并指示UE接入，使UE可以从该LPN上行接入，因此UE不需要再接收其所在第一基站的AICH，无需继续向第一基站发送preamble，从而抑制了UE的随机接入对LPN上行的干扰，增加了LPN的上行吞吐率，同时也能够节省UE的发送功率。
实施例二
请参阅图3，本实施例提供一种随机接入的干扰控制方法，包括：
301、发送随机接入前导码，以使第二基站获取所述随机接入前导码，所述第二基站是所述UE驻留的第一基站所在小区的邻区所在的基站；
302、接收所述第二基站下发的获取指示符信道；
303、根据所述第二基站下发的获取指示符信道的指示判定所述第二基站是否允许上行接入，若允许上行接入，则向所述第二基站发送随机接入消息。
具体的，所述随机接入消息使用所述第一基站或者所述第二基站的扰码进行加扰，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器；或者
所述随机接入消息的控制部分设置指示信息，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器。
所述随机接入消息的功率根据最后一次发送的前导码的功率确定。
在下行，仍然接收所述第一基站发送的前向导入接入信道或高速下行链路共享信道。
在第一种场景下，发送随机接入前导码之前，还包括：
接收无线网络控制器广播的所述第二基站的前导签名序列、扰码及获取指示符信道码道，获知第一基站配置为允许其在所述第二基站上行接入；
检测到所述第二基站的下行信道质量高于上行接入门限；
所述发送随机接入前导码，以使邻区所在的第二基站获取所述随机接入前导码，包括：使用所述广播的所述第二基站的前导签名序列及扰码向所述第二基站发送所述随机接入前导码，以使所述第二基站对所述随机接入前导码进行译码，并根据所述随机接入前导码的签名序列识别出其为驻留在所述第一基站的UE，从而向其下发获取指示符信道。
所述检测到所述第二基站的下行信道质量高于上行接入门限，包括，
获取相关参数，所述相关参数包括所述M_new、CIOnew、Mbest及RRACH；
根据相关参数判断公式10logM_new+CIOnew≥10logMbest+RRACH是否成立，若成立，则确认检测到所述第二基站的下行信道质量高于上行接入门限；
其中，所述M_new为所述第二基站的下行信道质量；
所述M_new为所述第二基站的如下参数中的一种或多种组合：公共导频信道接收信号码功率CPICH_RSCP、码片功率噪声比Ec/N0、控制信道的信道质量、同步信道的信道质量；
所述CIO_new为所述第二基站所在的小区测量值偏置；
所述M_best为所述第一基站所在的小区的信道质量；
所述RRACH为测量报告范围。
在此场景下，根据所述第二基站下发的获取指示符信道的指示判定所述第二基站是否允许上行接入，包括：
检测到所述第二基站下发的获取指示符信道的签名序列与所述随机接入前导码的签名序列对应，对所述获取指示符信道的签名序列进行译码，根据译码结果判断所述第二基站是否允许上行接入：若译码结果为1，表示所述第二基站允许上行接入，否则表示所述第二基站不允许上行接入。
进一步的，向所述第二基站发送随机接入消息，包括：
使用所述第二基站的扰码及扩频码向所述第二基站发送随机接入消息，所述扩频码预先约定或通过广播获取。
在第二种场景下，在发送随机接入前导码之前，还包括：
接收无线网络控制器广播的所述第二基站的扰码及获取指示符信道码道，获知所述第一基站配置为允许其在接收所述第一基站的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道；
所述发送随机接入前导码，包括：向所述第一基站或所述第二基站发送随机接入前导码，以使所述第二基站监听到所述随机接入前导码。
在此场景下，根据所述第二基站下发的获取指示符信道的指示判定所述第二基站是否允许上行接入，包括：
检测所述第二基站下发的获取指示符信道的捕获指示AI部分设置的用于指示是否允许所述UE随机接入的参数值，根据所述参数值判定所述第二基站是否允许上行接入。
进一步的，向所述第二基站发送随机接入消息之前，还包括：
判断是否接收到所述第一基站的获取指示符信道；
如果是，则向所述第一基站发送随机接入消息。
具体的，本实施例提供的方法由UE执行。
本实施例提供的一种随机接入的干扰控制方法，UE可以在上行从邻区所在的第二基站上行接入或者允许UE可以在接收第一基站的获取指示符信道的时间内接收第二基站的获取指示符信道，当所述获取指示符信道指示允许UE上行接入时，UE可在LPN上行接入，不需要再接收其所在第一基站的AICH，无需继续向第一基站发送随机接入前导码，从而抑制了UE的随机接入对LPN上行的干扰，增加了LPN的上行吞吐率，同时也能够节省UE的发送功率。
实施例三
请参阅图4，本实施例提供一种随机接入的干扰控制方法，包括：
401、配置允许用户设备UE在第二基站上行接入或者允许所述UE在接收第一基站下发的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道，其中，所述第一基站为所述UE驻留的基站，所述第二基站为所述第一基站所在小区的邻区所在的基站；
402、根据所述配置向所述UE发送所述第二基站的随机接入的相关信息，并根据所述随机接入的相关信息进入随机接入流程；
403、根据所述配置向所述第二基站发送所述第一基站广播的随机接入前导码的主扰码，以使所述第二基站获取所述UE发送的随机接入前导码后，根据所主扰码对所述随机接入前导码进行译码，向所述UE发送获取指示符信道，指示所述UE是否允许随机接入。
其中，当所述配置为允许用户设备UE随机接入第二基站时，所述随机接入的相关信息包括：所述第二基站的前导签名序列、扰码及获取指示符信道码道，其中所述前导签名序列与驻留在所述第二基站内的UE随机接入的前导签名序列不同；
当所述配置为允许所述UE在接收所述第一基站下发的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道时，所述随机接入的相关信息包括：所述第二基站的扰码及获取指示符信道码道。
进一步的，还包括：
接收所述第二基站和/或所述第一基站转发的随机接入消息；
根据所述随机接入消息指示所述第一基站向所述UE发送前向导入接入信道或高速下行链路共享信道。
进一步的，接收到所述第二基站和所述第一基站转发的随机接入消息之后，还包括：
对所述随机接入消息进行选择合并。
具体的，本实施提供的方法由RNC执行。
本实施例中，通过RNC对第一基站的UE进行设置，允许UE可以在上行从邻区所在的第二基站上行接入或者允许UE可以在接收第一基站的获取指示符信道的时间内接收第二基站的获取指示符信道，并向第二基站广播随机接入前导码的主扰码，因此能够使第二基站在获取到UE发送的随机接入前导码并在译码后向UE发送获取指示符信道，当所述获取指示符信道指示允许UE上行接入时，UE可在第二基站上行接入，不需要再接收其所在第一基站的AICH，无需继续向第一基站发送随机接入前导码，从而抑制了UE的随机接入对第二基站上行的干扰，增加了第二基站的上行吞吐率，同时也能够节省UE的发送功率。
实施例四
本发明实施例提供了一种随机接入的干扰控制方法，可以应用于R99RACH，或者也可应用于其他版本的RACH，参见图5，方法流程包括：
501、RNC配置宏小区(或宏站)内的UE是否可以在R99 RACH上行接入LPN。
502、如果允许上行接入LPN，RNC将向UE广播所述微站的随机接入的相 关信息，以使所述UE获知所述配置，并根据所述随机接入的相关信息进入随机接入流程。同时，RNC也将宏站广播的RACH preamble的主扰码告知LPN。
具体的，所述随机接入的相关信息为宏站在(System Information Block，系统信息块)SIB5或5BIS中广播的允许UE接入LPN的preamble signature(前导签名)和扰码，以及LPN的non-serving AICH码道。
具体的，该preamble signature不同于LPN小区内的UE的RACH接入的preamble signature。该宏站广播的RACH preamble的主扰码为IE“PRACH info”和IE“PRACH preamble control parameters”中广播的preamble的主扰码。
503、UE检测到某个邻近的LPN的下行信道质量满足高于某个门限(即上行接入门限)时，向该LPN发送随机接入前导码。
具体的，UE发送随机接入前导码，使用RNC广播的preamble signature和扰码，按R99 PRACH流程在上行接入LPN。此时，UE不再接收本小区(即该UE所在的宏站)的AICH(Acquisition Indication Channel，获取指示符信道)。
具体的，检测微站的下行信道质量高于上行接入门限，包括，
获取相关参数；
根据相关参数判断公式10logM_new+CIOnew≥10logMbest+RRACH是否成立，若成立，则确认检测到所述微站的下行信道质量高于上行接入门限；
其中，所述10logM_new为下行信道质量；
所述相关参数包括所述M_new、CIOnew、Mbest及RRACH
这里的M_new可以是邻区微站的CPICH_RSCP(公共导频信道接收信号码功率)或CPICH Ec/N0(码片功率噪声比)，也可以是邻区所在的其他控制或同步信道的信道质量，或者是多个控制或同步信道的质量组合。M_best为对应的本小区的信道质量。
RRACH为测量报告范围，CIO_new为小区测量值偏置。
504、LPN接收到UE发送的随机接入前导码，根据宏站系统信息块中广播的随机接入前导码的主扰码对该随机接入前导码进行译码，并通过preamble signature识别为宏站UE，然后下发non-serving AICH信道指示UE是否可以上行接入。
具体的，该non-serving AICH信道和传统AICH信道的格式相同，包括AI(Acquisition Indicatior，捕获指示)部分，该AI部分使用和UE发送的随机前 导码的preamble signature对应的签名序列。本实施例中，non-serving AICH的每个接入时隙(5120个码片)的格式请参阅图6。
图6中，AS(Access Slot)表示一个接入时隙，该接入时隙前4096个码片(即AI part)表示一个签名序列signature，这个签名序列和preamble的签名序列(即preamble signature)一一对应。UE如果检测到non-serving AICH的签名序列(即AI部分的签名序列)和自己发送的preamble的签名序列对应，就可以对这个序列进行译码。如果值为1，表示可以上行接入；否则表示当前不能上行接入。
505、UE检测到LPN的non-serving AICH后，如果non-serving AICH指示ACK允许UE上行接入，可以使用LPN的扰码和扩频码向LPN发送随机接入消息RACH message，从LPN上行接入。
具体的，所述的扩频码可以预先约定或者由UE通过广播获取。RACH message的功率根据最后一次发送的preamble功率确定。
506、在下行，UE仍然从宏站接收相关信道。
参见图7，步骤506具体包括如下步骤：
5061、LPN向RNC转发该RACH message，即根据该RACH message向RNC发送uplink data(上行链路数据)。
5062、RNC接收到该上行链路数据，根据该uplink data向UE所在的宏站发送downlink traffic(下行链路流量)，指示该宏站向UE发送相关信道。
5063、宏站向UE发送FACH或HS-DSCH(High-Speed Downlink Shared Channel，高速下行链路共享信道)。
本实施例中，RNC配置允许宏小区内的UE接入邻区所在的LPN，向UE广播允许的LPN的preamble signature(前导签名)、扰码以及non-serving AICH码道，并将宏站广播的RACH扰码告知该LPN，因此当UE检测到某个邻区所在的LPN的下行信道质量满足高于某个门限时，便可以向该LPN发送上行接入请求，只要LPN向该UE下发non-serving AICH信道并指示UE接入，UE便可从该LPN上行接入，因此不需要再接收其所在宏站的AICH，无需继续向宏站发送preamble，从而抑制了UE的随机接入对LPN上行的干扰，增加了LPN的上行吞吐率，同时也能够节省UE的发送功率。
实施例五
本发明实施例以R99 RACH为例，提供了一种随机接入的干扰控制方法，参见图8，方法流程包括：
801、RNC配置宏小区内的UE在接收AICH的时间内是否接收微站下发的获取指示符信道non-serving AICH。
802、若配置为接收，向UE广播LPN的扰码和non-serving AICH码道；并将宏站广播的RACH preamble主扰码告知LPN。
具体的，LPN的non-serving AICH信道的时隙格式请参阅9。
图9中，每个时隙包含Pilot(导频)部分和AI部分：pilot部分用于UE对non-serving AICH进行信道估计，AI为LPN下发的接入指示。Non-serving AICH可以使用多个时隙或TTI(Transmission Time Interval，传输时间间隔)重复发送以增大UE的正确接收概率。
803、UE在RACH过程中接收本小区AICH的时间内接收宏站广播的LPN的non-serving AICH。
参见图10，步骤803具体包括如下步骤：
8031、LPN监听UE的R99 RACH的发送给宏站的随机接入前导码。
8032、UE通过RACH ramping向宏站发送随机接入前导码。
8033、LPN检测到UE的RACH ramping随机接入前导码，根据所述随机接入前导码的主扰码对所述随机接入前导码进行译码，识别出所述UE为所述宏站UE，向UE下发non-serving AICH。
具体的，UE向宏站进行RACH ramping接入，当UE发送的preamble已能够被微站检测到时并不能被宏站检测到。
如果LPN具有剩余的R99资源，LPN将在non-serving AICH的AI部分设置一个指示是否允许所述UE上行接入的参数pattern值，指示UE是否可以上行接入。
804、UE接收并检测到non-serving AICH上的AI部分的pattern，如果允许UE接入，UE在适当的时间向LPN发送PRACH message随机接入消息。
具体的，该PRACH message的功率根据UE最后一次发送的preamble功率确定。
805、在下行，UE仍然从宏站接收FACH或HS-DSCH。
具体包括如下步骤：
8051、LPN转发收到的随机接入消息，即根据收到的RACH message，向RNC发送uplink data(上行链路数据)。
8052、RNC接收到该上行链路数据，根据该uplink data向UE所在的宏站发送downlink traffic(下行链路流量)。
8053、宏站向UE发送FACH或HS-DSCH。
具体的，本实施例中，如果UE同时收到了宏站和LPN的AICH，UE将忽略LPN的AICH并向宏站发送PRACH message，此时，由宏站向RNC转发PRACH message。
为使宏站或微站区分UE RACH接入的是宏站还是LPN，可以采用以下几种处理方法：
方法一：根据UE发送的PRACH Message使用的扰码进行区分，如果扰码为广播的宏站扰码表示接入的是宏站；使用的扰码是广播的LPN的扰码表明接入的是微站；
方法二：UE发送的在PRACH Message的控制部分control part中增加1bit指示信息接入为宏站或微站；
如果宏站或LPN识别出UE的RACH message不是发给自己时，将不向RNC进行转发。
另外，也可以不进行接入区分，由RNC对RACH message采用宏分集方式做选择合并。
本实施例中，RNC配置允许宏小区内的UE接入邻区所在的LPN，向UE广播允许的LPN的扰码以及non-serving AICH码道，并将宏站广播的RACHpreamble的主扰码告知该LPN，然后由LPN监听UE向宏站发送的前导码，当LPN检测到UE发送的RACH前导码时，若其还有剩余的资源，则向UE发送non-serving AICH，指示UE接入，此时，UE无需继续向宏站发送preamble，从而抑制了UE的随机接入对LPN上行的干扰，增加了LPN的上行吞吐率，同时也能够节省UE的发送功率。
实施例六
请参阅图11，本实施例提供一种基站，包括：
广播接收单元111，用于获取无线网络控制设备广播的随机接入前导码的主扰码；
前导码获取单元112，用于获取用户设备UE发送的随机接入前导码；
识别单元113，用于根据所述广播接收单元111接收的随机接入前导码和主扰码，识别出所述UE是否为驻留在相邻小区所在的第一基站的UE；
信道发送单元114，用于在所述识别单元112识别出所述UE为驻留在所述第一基站的UE时，向所述UE下发获取指示符信道，指示所述UE是否能够上行接入。
在第一种场景中，前导码获取单元112用于：接收所述UE发送的随机接入前导码；
所述信道发送单元114发送的所述获取指示符信道的时隙格式包括捕获指示AI部分，所述AI部分使用与所述UE发送的随机接入前导码的签名序列对应的签名序列，以使所述UE在检测到所述AI的签名序列与所述随机接入前导码的签名序列对应时，对所述AI的签名序列进行译码，并根据译码结果判定是否允许上行接入。
在第二种场景中，前导码获取单元112用于：监听所述UE向所述第一基站发送的随机接入前导码；
所述信道发送单元114，包括：
资源评估模块，用于在所述前导码获取单元监听到所述随机接入前导码之后，评估所述基站是否有剩余资源；
信道处理模块，用于在所述资源评估模块评估到所述基站有剩余资源时，向所述UE发送所述获取指示符信道，其中，所述获取指示符信道时隙包括AI部分及导频Pilot部分，所述AI部分设有指示是否允许所述UE随机接入的参数值，以使所述UE在被允许随机接入时发送随机接入消息，所述Pilot部分用于所述UE对所述获取指示符信道进行信道估值；或者，还用于利用获取指示符信道使用多个时隙或传输时间间隔TTI重复发送以增大所述UE的正确接收概率。
在上述任一种场景中，该基站还可以包括：
接入消息接收单元，用于接收所述UE发送的随机接入消息；
转发单元，用于将所述随机接入消息转发给无线网络控制器，以使所述无线网络控制器控制所述第一基站向UE发送相关信道。
进一步的，转发单元，还用于对所述随机接入消息进行识别，若所述随机接入消息是发给所述微站的，则将所述随机接入消息转发给无线网络控制器。
本实施例提供的上述第一基站，通过向该UE下发non-serving AICH信道并指示UE接入，使UE可以从该第二基站上行接入，因此UE不需要再接收其所在第一基站的AICH，无需继续向第一基站发送preamble，从而抑制了UE的随机接入对LPN上行的干扰，增加了LPN的上行吞吐率，同时也能够节省UE的发送功率。
实施例七
请参阅图12，本实施例提供了一种用户设备UE，包括：
前导码发送单元121，用于发送随机接入前导码，以使第二基站获取所述随机接入前导码，所述第二基站是所述UE驻留的第一基站所在小区的邻区所在的基站；
上行信道接收单元122，用于接收所述第二基站下发的获取指示符信道；
接入消息发送单元123，用于根据所述上行信道接收单元接收的信道判定所述第二基站是否允许上行接入，若允许上行接入，并且仅接收到所述获取指示符信道，则向所述第二基站发送随机接入消息。
请参阅图13，本实施例中，UE还包括：
广播接收单元124，用于接收无线网络控制器广播的所述第二基站的前导签名序列、扰码及获取指示符信道码道，获知第一基站配置为允许所述UE在所述第二基站上行接入；
门限检测单元125，用于在所述广播接收单元124获知第一基站配置为允许所述UE在所述第二基站上行接入时，检测所述第二基站的下行信道质量是否高于上行接入门限；
所述前导码发送单元121，用于所述门限检测单元125检测到所述第二基站的下行信道质量高于所述上行接入门限时，使用所述广播的所述第二基站的前导签名及扰码向所述第二基站发送所述随机接入前导码，以使所述第二基站所述对所述随机接入前导码进行译码，并根据所述随机接入前导码的签名序列识别出其为驻留在邻小区所在的UE，从而向其下发获取指示符信道。
进一步的，接入消息发送单元123，包括：
信道分析模块，用于检测所述上行信道接收单元接收的获取指示符信道，在检测到所述获取指示符信道的签名序列与所述随机接入前导码的签名序列对应时，对所述获取指示符信道的签名序列进行译码，若译码值为1，表示所述第二基站允许上行接入，否则表示所述第二基站不允许上行接入；
发送模块，用于在所述信道分析模块分析到所述第二基站允许上行接入时，向所述第二基站发送随机接入消息。
进一步的，本实施例的用户设备UE，还包括：
下行信道接收单元126，用于接收所述第一基站发送的前向导入接入信道或高速下行链路共享信道。
本实施例提供的用户设备，在检测到某个邻第二基站的下行信道质量满足高于某个门限时，便可以向该第二基站发送上行接入请求，只要第二基站向该UE下发non-serving AICH信道并指示UE接入，UE便可从该第二基站上行接入，因此不需要再接收其所在第一基站的AICH，无需继续向第一基站发送preamble，从而抑制了UE的随机接入对第二基站上行的干扰，增加了第二基站的上行吞吐率，同时也能够节省UE的发送功率。
实施例八
请参阅图14，本实施例提供了一种用户设备UE，包括：
前导码发送单元141，用于发送随机接入前导码，以使第二基站获取所述随机接入前导码，，所述第二基站是所述UE驻留的第一基站所在小区的邻区所在的基站；
上行信道接收单元142，用于接收所述第二基站下发的获取指示符信道；
接入消息发送单元143，用于根据所述上行信道接收单元接收的获取指示符信道判定所述第二基站是否允许随机接入，若允许随机接入，并且仅接收到所述获取指示符信道，则向所述第二基站发送随机接入消息。
本实施例中，UE还包括：
广播接收单元144，用于接收无线网络控制器广播的所述第二基站的扰码及获取指示符信道码道，获知第一基站配置为允许其在接收所述第一基站的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道；
所述前导码发送单元141用于：向所述第一基站或第二基站发送随机接入 前导码，以使邻区所在的第二基站获取所述随机接入前导码。
进一步的，接入消息发送单元143，包括：
信道分析模块，用于检测所述上行信道接收单元接收的获取指示符信道的捕获指示AI部分设置的用于指示是否允许上行接入的参数值，根据所述参数值判定所述第二基站是否允许上行接入；
发送模块，用于在所述信道分析模块分析到所述第二基站允许上行接入时，向所述第二基站发送随机接入消息。
进一步的，在本实施例的一个场景中，上行信道接收单元142，还用于接收所述第一基站下发的获取指示符信道；
接入消息发送单元143，还用于在所述上行信道接收单元142同时收到所述第二基站下发的获取指示符信道与所述第一基站下发的获取指示符信道时，向第一基站发送随机接入消息。
接入消息发送单元143，还用于在所述随机接入消息中使用所述第一基站或者所述第二基站的扰码进行加扰，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器；或者还用于在所述随机接入消息的控制部分设置指示信息，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器。
进一步的，UE还包括：
下行信道接收单元145，用于接收所述第一基站发送的前向导入接入信道或高速下行链路共享信道。
本实施例提供的用户设备，在接收到第二基站发送的指示其接入的non-serving AICH时，可以从第二基站上行接入，因此无需继续向第一基站发送preamble，从而抑制了UE的随机接入对第二基站上行的干扰，增加了第二基站的上行吞吐率，同时也能够节省UE的发送功率。
实施例九
请参阅图15，本实施例提供一种无线网络控制设备RNC，包括：
配置单元151，用于配置允许用户设备UE在邻区所在的第二基站上行接入，或者用于配置允许所述UE在接收第一基站的获取指示符信道的时间内接收所 述第二基站的获取指示符信道，其中，所述第一基站为所述UE驻留的基站，所述第二基站为所述第一基站所在小区的邻区所在的基站；
广播单元152，用于根据所述配置单元151的配置向所述UE广播所述第二基站的随机接入的相关信息，以使所述UE获知所述配置，并根据所述随机接入的相关信息进入随机接入流程；还用于向所述第二基站广播所述第一基站广播的随机接入前导码的主扰码，以使所述第二基站获取所述UE发送的随机接入前导码后，根据所主扰码对所述随机接入前导码进行译码，向所述UE发送获取指示符信道。
进一步的，当所述配置为允许第一基站的用户设备UE随机接入邻区所在的第二基站时，所述广播单元152，用于向所述UE广播所述第二基站的前导签名序列、扰码及获取指示符信道码道，其中所述前导签名序列与驻留在所述第二基站内的UE随机接入的前导签名序列不同；
当所述配置为允许所述第一基站的UE在接收第一基站的获取指示符信道的时间内接收所述第二基站的获取指示符信道时，所述广播单元152，用于向所述UE广播所述第二基站的扰码及获取指示符信道码道。
请参阅图16，进一步的，该RNC还包括：
接收单元153，用于接收所述第二基站和/或所述第一基站转发的随机接入消息；
指示单元154，用于根据所述随机接入消息指示所述第一基站向所述UE发送前向导入接入信道或高速下行链路共享信道。
进一步的，该RNC还包括：
选择合并单元155，用于在接收单元153接收到所述第二基站和所述第一基站转发的随机接入消息时，对所述接收单元接收的随机接入消息进行选择合并。
本实施例提供的RNC，通过对第一基站的UE进行设置，允许UE可以在上行从邻区所在的第二基站上行接入或者允许UE可以在接收第一基站的获取指示符信道的时间内接收第二基站的获取指示符信道，并向第二基站广播随机接入前导码的主扰码，因此能够使第二基站在获取到UE发送的随机接入前导码并在译码后向UE发送获取指示符信道，当所述获取指示符信道指示允许UE上行接入时，UE可在第二基站上行接入，不需要再接收其所在第一基站的AICH，无需继续向第一基站发送随机接入前导码，从而抑制了UE的随机接入对第二基 站上行的干扰，增加了第二基站的上行吞吐率，同时也能够节省UE的发送功率。
实施例十
参见图17，本发明实施例提供了一种随机接入的系统。
本实施中，随机接入系统包括无线网络控制设备10、第二基站20、用户设备UE30及第一基站40，其中，所述第一基站40为所述UE30驻留的基站，所述第二基20站为所述第一基站所在小区的邻区所在的基站。
无线网络控制设备10包括：
配置单元11，用于配置允许第一基站40的UE30随机接入第二基站20；
广播单元12，用于根据配置单元11的配置向UE30广播第二基站20的随机接入的相关信息，该相关信息包括第二基站20的前导签名序列、扰码及获取指示符信道码道，以使UE30获知所述配置，并根据所述随机接入的相关信息进入随机接入流程；还用于向第二基站20广播所述第一基站40广播的随机接入前导码的主扰码，以使第二基站20获取UE30发送的随机接入前导码后，根据所主扰码对所述随机接入前导码进行译码，向所述UE30发送获取指示符信道，指示UE30是否允许上行接入；
接收单元13，用于接收第二基站20转发的随机接入消息；
指示单元14，用于根据所述随机接入消息指示第一基站40向UE30发送前向导入接入信道或高速下行链路共享信道。
第二基站20包括：
广播接收单元21，用于获取第一基站40广播的随机接入前导码的主扰码；
前导码获取单元22，用于接收UE30发送的随机接入前导码；
识别单元23，用于根据所述广播接收单元21接收的随机接入前导码的主扰码和前导码获取单元22接收的随机接入前导码，识别UE30是否为驻留在所述第一基站40的UE；
信道发送单元24，用于在所述识别单元识别出所述UE为驻留在所述第一基站的UE时，向所述UE30下发获取指示符信道，指示所述UE30是否可以上行接入，具体的，该获取指示符信道的时隙格式包括捕获指示AI部分，所述AI部分使用与所述UE30发送的随机接入前导码的签名对应的签名序列，以使所述UE30在检测到所述AI部分的签名序列与所述随机接入前导码的签名序列 对应时，对所述AI的签名序列进行译码，并根据译码结果判定是否允许上行接入：若所述译码结果为1，则允许所述UE30上行接入；否则不允许UE30上行接入。
接入消息接收单元25，用于接收所述UE30发送的随机接入消息；
转发单元26，用于将所述随机接入消息转发给无线网络控制器10，以使所述无线网络控制器10控制所述第一基站40向UE30发送相关信道。
用户设备UE30，包括：
广播接收单元31，用于接收无线网络控制器RNC10广播的第二基站20的随机接入的相关信息，获知第一基站配置为允许其在第二基站20上行接入。具体的，该相关信息包括所述第二基站20的前导签名序列、扰码及获取指示符信道码道。
门限检测单元32，用于在广播接收单元31获知第一基站40配置为允许其在第二基站20上行接入后，检测第二基站20的下行信道质量是否满足高于上行接入门限。
前导码发送单元33，用于在门限检测单元32检测到第二基站20的下行信道质量高于上行接入门限时，根据所述广播的所述第二基站20的前导签名序列及扰码向第二基站20发送随机接入前导码，以使第二基站20获取所述随机接入前导码；具体的，该前导码发送单元22使用广播接收单元31接收的所述第二基站20的前导签名及扰码向所述第二基站20发送所述随机接入前导码，以使所述第二基站20根据广播的随机接入前导码的主扰码对所述随机接入前导码进行译码，并向其下发获取指示符信道。
上行信道接收单元34，用于接收所述第二基站20下发的获取指示符信道；
接入消息发送单元35，用于根据所述上行信道接收单元接收的判定所述第二基站20是否允许上行接入，若允许上行接入，则向所述第二基站20发送随机接入消息。该接入消息发送单元包括：信道分析模块，用于检测所述上行信道接收单元接收的获取指示符信道，在检测到所述获取指示符信道的序列与所述随机接入前导码的序列对应时，对所述获取指示符信道的序列进行译码，若译码值为1，表示所述第二基站20允许上行接入；发送模块，用于在所述信道分析模块分析到所述第二基站20允许UE30上行接入时，向所述第二基站20发送随机接入消息。
下行信道接收单元36，用于接收所述第一基站40发送的前向导入接入信道或高速下行链路共享信道。
第一基站40，用于根据所述无线网络控制器10的指示向所述UE30发送所述前向导入接入信道或所述高速下行链路共享信道。
本实施例中，RNC配置允许服务小区内的UE接入邻第二基站，向UE广播允许的第二基站的preamble signature(前导签名序列)、扰码以及non-serving AICH码道，并将第一基站广播的RACH扰码告知该第二基站，因此当UE检测到某个邻第二基站的下行信道质量满足高于某个门限时，便可以向该第二基站发送上行接入请求，只要第二基站向该UE下发non-serving AICH信道并指示UE接入，UE便可从该第二基站上行接入，因此不需要再接收其所在服务小区所在的AICH，无需继续向第一基站发送preamble，从而抑制了UE的随机接入对第二基站上行的干扰，增加了第二基站的上行吞吐率，同时也能够节省UE的发送功率。
实施例十一
参见图18，本发明实施例提供了一种随机接入的系统。
本实施中，随机接入系统包括无线网络控制设备RNC10′、第二基站20′、用户设备UE30′及第一基站40′，其中，所述第一基站40′为所述UE30′驻留的基站，所述第二基站20′为所述第一基站40′所在小区的邻区所在的基站。
无线网络控制设备RNC10′包括：
配置单元11′，用于允许所述第一基站的UE30′在接收第一基站40′的获取指示符信道的时间内接收所述第二基站20′的获取指示符信道。
广播单元12′，用于根据所述配置单元的配置向所述UE30′广播所述第二基站20′的随机接入的相关信息，以使所述UE30′获知所述配置，并根据所述随机接入的相关信息执行随机接入流程；还用于向所述第二基站20′广播所述第一基站40′广播的随机接入前导码的主扰码，以使所述第二基站20′在获取所述UE30′发送的随机接入前导码后，根据所主扰码对所述随机接入前导码进行译码，向所述UE30′发送获取指示符信道，指示所述UE30′是否允许上行接入。具体的，所述第二基站20′的随机接入的相关信息，包括第二基站20′的扰码及获取指示符信道。
接收单元13′，用于接收所述第二基站20′转发的随机接入消息。
指示单元14′，用于根据所述随机接入消息指示所述第一基站40′向所述UE30′发送前向导入接入信道或高速下行链路共享信道。
第二基站20′包括：
广播接收单元21′，用于接收第一基站40′系统信息块中广播的随机接入前导码的主扰码。
前导码获取单元22′，用于获取UE30′发送的随机接入前导码。具体的，随机接入前导码由前导码获取单元22′通过监听所述UE30′向第一基站40′发送的随机接入前导码获得。
识别单元23′，用于根据广播接收单元21′接收的随机接入前导码的主扰码和所述前导码获取单元22′获取的随机接入前导码，识别出所述UE30′是否为驻留在所述第一基站40′的UE。
信道发送单元24′，用于在所述识别单元23′识别出所述UE30′为驻留在第一基站40′的UE时，向所述UE30′下发获取指示符信道，指示所述UE30′是否可以随机接入。信道发送单元24′包括：资源评估模块，用于在所述前导码获取单元监听到所述随机接入前导码之后，评估所述第二基站20′是否有剩余资源；信道处理模块，用于在所述资源评估模块评估到所述第二基站20′有剩余资源时，向所述UE30′发送所述获取指示符信道码道，其中，所述获取指示符信道时隙包括AI部分及导频Pilot部分，所述AI部分设有指示是否允许所述UE30′上行接入的参数值，以使所述UE30′在被允许上行接入时发送随机接入消息，所述Pilot部分用于所述UE30′对所述获取指示符信道进行信道估值；或者，还用于利用获取指示符信道使用多个时隙或传输时间间隔TTI重复发送以增大所述UE的正确接收概率。
接入消息接收单元25′，用于接收所述UE30′发送的随机接入消息。
转发单元26′，用于将所述随机接入消息转发给无线网络控制器10′，以使所述无线网络控制器控制10′所述第一基站40′向UE30′发送相关信道。
UE30′包括：
广播接收单元31′，用于接收无线网络控制器10′广播的所述第二基站20′的扰码及获取指示符信道码道，获知第一基站40′配置为允许其在接收所述第一基站40′的获取指示符信道的时间内接收所述第二基站20′的指示符信道；
前导码发送单元32′，用于发送随机接入前导码，以使第二基站20′获取所述随机接入前导码。具体为，前导码发送单元32′通过向其所在第一基站40′发送随机接入前导码，以使所述第二基站20′监听到所述随机接入前导码；
上行信道接收单元33′，用于接收所述第二基站20′下发的获取指示符信道；
接入消息发送单元34′，用于根据所述获取指示符信道判定所述第二基站20′是否允许上行接入，若允许上行接入，并且仅接收到所述获取指示符信道，则向所述基站20′发送随机接入消息。接入消息发送单元34′，包括：信道分析模块，用于检测所述获取指示符信道的捕获指示AI部分设置的指示是否允许所述UE30′上行接入的参数值，根据所述参数值判定所述基站20′是否允许上行接入；发送模块，用于在所述信道分析模块分析到所述第二基站20′允许所述用户设备上行接入时，向所述基站20′发送随机接入消息。
下行信道接收单元35′，用于接收所述第一基站40′发送的前向导入接入信道或高速下行链路共享信道。
第一基站40′，用于根据所述无线网络控制器10′的指示向所述UE30′发送所述前向导入接入信道或所述高速下行链路共享信道。
需要说明的是：UE30′的上行信道接收单元33′，还用于接收所述第一基站40′下发的获取指示符信道；接入消息发送单元34′，还用于在所述上行信道接收单元33′同时收到所述第二基站20′下发的获取指示符信道与所述第一基站40′下发的获取指示符信道时，忽略第二基站20′下发的获取指示符信道，向第一基站40′转发随机接入消息。此时，第一基站40′还用于向RNC10′转发随机接入消息。RNC的接收单元13′，还用于接收第一基站转发的随机接入消息；指示单元14′，还有用于根据第一基站40′转发的随机接入消息指示所述第一基站40′向所述UE发送前向导入接入信道或高速下行链路共享信道。
具体的，为了使第二基站20′能够区分其收到的随机接入消息是否是转发给自己的，第二基站20′的转发单元还用于对所述随机接入消息进行识别，若所述随机接入消息是发给第二基站20′的，则将所述随机接入消息转发给无线网络控制器。具体的，可根据所述UE发送的随机接入消息使用的扰码进行区分，判断所述UE发送的随机接入消息是否是发给自己的；或者根据所述UE发送的随机接入消息的控制部分增加的指示信息判断所述随机接入消息是否是发给自己的。同样的，第一基站40′还用于对所述随机接入消息进行识别，若所述随机接 入消息是发给自己的，则将所述随机接入消息转发给无线网络控制器。其区分方法与第二基站20′的区分方法相同，此处不再赘述。
具体的，第二基站20′及第一基站40′也可以不对收到的随机接入消息进行区分，而是直接将其转发给RNC，此时RNC还包括选择合并单元，用于对所述接收单元接收的随机接入消息采用宏分集方式做选择合并。
本实施例中，RNC配置允许服务小区内的UE接入第二基站，向UE广播允许的第二基站的扰码以及non-serving AICH码道，并将第一基站广播的RACH扰码告知该第二基站，并由第二基站监听UE向第一基站发送的前导码，当第二基站检测到UE发送的前导码时，若其还有剩余的资源，则向UE发送non-serving AICH，指示UE接入，此时，UE无需继续向第一基站发送preamble，从而抑制了UE的随机接入对第二基站上行的干扰，增加了第二基站的上行吞吐率，同时也能够节省UE的发送功率。
实施例十二
请参阅图19，本实施例提供了一种基站，包括：
接收机191，用于获取无线网络控制设备广播的随机接入前导码的主扰码以及用户设备UE发送的随机接入前导码；
处理器192，用于根据所述接收机191接收的随机接入前导码的主扰码和所述随机接入前导码进行译码，识别所述UE是否为驻留在邻区所在的第一基站的UE；
发送机193，用于在所述处理器192识别出所述UE为驻留在所述第一基站的UE时，向所述UE下发获取指示符信道，指示所述UE是否能够上行接入。
在本实施例中，在第一中场景中，接收机191用于，接收所述UE发送的随机接入前导码；
发送机193发送的所述获取指示符信道的时隙格式包括捕获指示AI部分，所述AI部分使用与所述UE发送的随机接入前导码的签名对应的签名序列，以使所述UE在检测到所述AI的签名序列与所述随机接入前导码的签名序列对应时，对所述AI的签名序列进行译码，并根据译码结果判定是否允许上行接入：若所述译码结果为1，则允许所述UE上行接入，以使得所述UE发送随机接入消息；否则不允许UE上行接入。
在第二种场景中，接收机191，用于监听所述UE向所述第一基站发送的随机接入前导码；
处理器192，用于在所述接收机191监听到所述随机接入前导码之后，评估所述基站是否有剩余资源；
发送机193，用于在处理器192评估到所述基站有剩余资源时，向所述UE发送所述获取指示符信道，其中，所述获取指示符信道时隙包括AI部分及导频Pilot部分，所述AI部分设有指示是否允许所述UE上行接入的参数值，以使所述UE在被允许上行接入时发送随机接入消息，所述Pilot部分用于所述UE对所述获取指示符信道进行信道估值；或者，还用于利用获取指示符信道使用多个时隙或传输时间间隔TTI重复发送以增大所述UE的正确接收概率。
在上述任一场景中，该接收机191，还用于接收所述UE发送的随机接入消息；
该发送机193，还用于将所述随机接入消息转发给无线网络控制器，以使所述无线网络控制器控制所述第一基站向UE发送相关信道。
进一步的，该处理器192，还用于对所述随机接入消息进行识别；
该发送机，用于在处理器192识别出所述随机接入消息是发给所述基站时，将所述随机接入消息转发给无线网络控制器。
本实施例提供的基站，，通过向该UE下发non-serving AICH信道并指示UE接入，使UE可以从该第二基站上行接入，因此UE不需要再接收其所在第一基站的AICH，无需继续向第一基站发送preamble，从而抑制了UE的随机接入对第二基站上行的干扰，增加了第二基站的上行吞吐率，同时也能够节省UE的发送功率。
实施例十三
请参阅图20，本实施例提供一种用户设备UE，包括：
发送机201，用于发送随机接入前导码，以使第二基站获取所述随机接入前导码，所述第二基站为所述UE驻留的第一基站所在小区的邻区所在的基站；
接收机202，用于接收所述第二基站下发的获取指示符信道；
处理器203，还用于根据所述获取指示符信道判定所述第二基站是否允许上行接入；
发送机201，还用于在所处理器判定所述第二基站允许上行接入时，向所述第二基站发送随机接入消息。
本实施例中，在第一种场景中，
接收机202，还用于接收无线网络控制器广播的所述第二基站的前导签名序列、扰码及获取指示符信道码道；
处理器203，还用于根据所述接收机接收的所述第二基站的前导签名序列、扰码及获取指示符信道码道获知第一基站配置为允许所述UE在所述第二基站上行接入；以及用于在所述接收机获知第一基站配置为允许所述UE在所述第二基站上行接入时，检测所述第二基站的下行信道质量是否高于上行接入门限；
发送机201，还用于在所述处理器203检测到所述第二基站的下行信道质量高于所述上行接入门限时，使用所述广播的所述第二基站的前导签名序列及扰码向所述第二基站发送所述随机接入前导码，以使所述第二基站所述对所述随机接入前导码进行译码，并根据所述随机接入前导码的签名序列识别出其为驻留在邻小区所在的UE，从而向其下发获取指示符信道。
进一步的，处理器203，还用于在检测到所述获取指示符信道的签名序列与所述随机接入前导码的签名序列对应时，对所述获取指示符信道的签名序列进行译码，根据译码结果判断所述第二基站是否允许上行接入；所述发送机201还用于在所述处理器203判断所述第二基站允许上行接入时，向所述第二基站发送随机接入消息。
在第二种场景中，接收机202，用于接收无线网络控制器广播的所述第二基站的扰码及获取指示符信道码道；
处理器203，还用于根据所述接收机接收无线网络控制器广播的所述第二基站的扰码及获取指示符信道码道获知第一基站配置为允许其在接收所述第一基站的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道；
发送机201，用于向其所在第一基站或所述第二基站发送随机接入前导码，以使邻区所在的第二基站获取所述随机接入前导码。
进一步的，处理器203，还用于检测所述第二基站下发的获取指示符信道的捕获指示AI部分设置的用于指示是否允许上行接入的参数值，根据所述参数值判定所述第二基站是否允许上行接入；
发送机201，还用于在所述处理器203判定所述第二基站允许上行接入时， 向所述第二基站发送随机接入消息。
进一步的，接收机202，还用于接收所述第一基站下发的获取指示符信道；
处理器203，还用于判断所述接收机在接收到所述第二基站下发的获取指示符信道时，是否接收到所述第一基站的获取指示符信道；
所述发送机201，在所述处理器203判断所述接收机接收到所述第一基站的获取指示符信道时，向所述第一基站发送随机接入消息。
进一步的，发送机201，还用于在所述随机接入消息中使用所述第一基站或者所述第二基站的扰码进行加扰，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器；或者还用于在所述随机接入消息的控制部分设置指示信息，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器。
本实施例中，在上述任一种场景中，接收机202，还用于接收所述第一基站发送的前向导入接入信道或高速下行链路共享信道。
本实施例提供的用户设备，可以在上行从邻区所在的第二基站上行接入或者允许UE可以在接收第一基站的获取指示符信道的时间内接收第二基站的获取指示符信道，当所述获取指示符信道指示允许UE上行接入时，UE可在第二基站上行接入，不需要再接收其所在第一基站的AICH，无需继续向第一基站发送随机接入前导码，从而抑制了UE的随机接入对第二基站上行的干扰，增加了第二基站的上行吞吐率，同时也能够节省UE的发送功率。
实施例十四
请参阅图21，本实施例提供一种无线网络控制设备RNC，包括：
处理器211，用于配置允许第一基站的用户设备UE在邻区所在的第二基站上行接入，或者用于配置允许所述第一基站的UE在接收第一基站的获取指示符信道的时间内接收所述第二基站的获取指示符信道，其中，所述第一基站为所述UE驻留的基站，所述第二基站为所述第一基站所在小区的邻区所在的基站；
发送机212，用于根据所述处理器211的配置向所述UE广播所述第二基站的随机接入的相关信息，以使所述UE获知所述配置，并根据所述随机接入的相关信息进入随机接入流程；还用于向所述第二基站广播所述第一基站广播的随 机接入前导码的主扰码，以使所述第二基站获取所述UE发送的随机接入前导码后，根据所主扰码对所述随机接入前导码进行译码，向所述UE发送获取指示符信道。
进一步的，所述发送机211，用于当所述配置为允许第一基站的用户设备UE随机接入邻区所在的第二基站时，向所述UE广播所述第二基站的前导签名序列、扰码及获取指示符信道码道，其中所述前导签名序列与驻留在所述第二基站内的UE随机接入的前导签名序列不同；或者，用当所述配置为允许所述第一基站的UE在接收第一基站的获取指示符信道的时间内接收所述第二基站的获取指示符信道时，向所述UE广播所述第二基站的扰码及获取指示符信道码道。
进一步的，该RNC还包括接收机，用于接收所述第二基站和/或所述第一基站转发的随机接入消息；
发送机212，还用于根据所述随机接入消息指示所述第一基站向所述UE发送前向导入接入信道或高速下行链路共享信道。
进一步的，该处理器211，还用于在接收机接收到所述第二基站和所述第一基站转发的随机接入消息时，对所述接收机接收的随机接入消息进行选择合并。
本实施例提供的RNC，通过对第一基站的UE进行设置，允许UE可以在上行从邻区所在的第二基站上行接入或者允许UE可以在接收第一基站的获取指示符信道的时间内接收第二基站的获取指示符信道，并向第二基站广播随机接入前导码的主扰码，因此能够使第二基站在获取到UE发送的随机接入前导码并在译码后向UE发送获取指示符信道，当所述获取指示符信道指示允许UE上行接入时，UE可在第二基站上行接入，不需要再接收其所在第一基站的AICH，无需继续向第一基站发送随机接入前导码，从而抑制了UE的随机接入对第二基站上行的干扰，增加了第二基站的上行吞吐率，同时也能够节省UE的发送功率。
综上所述，本发明实施例一种随机接入的干扰控制方法、设备及系统，通过对第一基站的UE进行设置，允许UE可以在上行从邻区所在的第二基站上行接入或者允许UE可以在接收第一基站的获取指示符信道的时间内接收第二基站的获取指示符信道，并向第二基站广播随机接入前导码的主扰码，因此能够使第二基站在获取到UE发送的随机接入前导码并在译码后向UE发送获取指示 符信道，当所述获取指示符信道指示允许UE上行接入时，UE可在第二基站上行接入，不需要再接收其所在第一基站的AICH，无需继续向第一基站发送随机接入前导码，从而抑制了UE的随机接入对第二基站上行的干扰，增加了第二基站的上行吞吐率，同时也能够节省UE的发送功率。
需要说明的是：上述实施例提供的随机接入干扰控制的设备在执行随机接入流程时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将设备的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的一种随机接入的干扰控制方法、设备及系统属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
上述本发明实施例序号仅仅为了描述，不代表实施例的优劣。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (58)

  1. 一种随机接入的干扰控制方法，其特征在于，所述方法包括：
    获取无线网络控制设备广播的随机接入前导码的主扰码；
    获取用户设备UE发送的随机接入前导码；
    根据所述广播的随机接入前导码的主扰码和所述UE发送的随机接入前导码，识别出所述UE为驻留在相邻小区所在的第一基站的UE；
    向所述UE下发获取指示符信道，指示所述UE是否能够上行接入。
  2. 根据权利要求1所述的方法，其特征在于，所述获取用户设备UE发送的随机接入前导码之前，还包括：接收所述UE发送的随机接入前导码。
  3. 根据权利要求2所述的方法，其特征在于，所述向所述UE下发获取指示符信道，指示所述UE是能够上行接入，包括：
    向所述UE发送所述获取指示符信道，所述获取指示符信道的时隙格式包括捕获指示AI部分，所述AI部分使用与所述UE发送的随机接入前导码的签名序列对应的签名序列，以使所述UE在检测到所述AI的签名序列与所述随机接入前导码的签名序列对应时，对所述AI的签名序列进行译码，并根据译码结果判定是否允许上行接入。
  4. 根据权利要求1所述的方法，其特征在于，所述获取用户设备UE发送的随机接入前导码之前，还包括：
    接收所述UE发送的随机接入前导码；或者，
    对所述UE向所述第一基站发送的随机接入前导码进行监听。
  5. 根据权利要求4所述的方法，其特征在于，所述向所述UE下发获取指示符信道，指示所述UE是否能够上行接入，包括：
    评估剩余资源；
    若有剩余资源，则向所述UE下发获取指示符信道，所述获取指示符信道的时隙结构包括AI部分；所述AI部分设有指示是否允许所述UE上行接入的参 数值。
  6. 根据权利要求1至5任一项所述的方法，其特征在于，所述向所述UE下发获取指示符信道，包括利用所述获取指示符信道使用多个时隙或传输时间间隔重复发送。
  7. 根据权利要求1至6任一项所述的方法，其特征在于，还包括：
    接收所述UE发送的随机接入消息；
    将所述随机接入消息转发给无线网络控制器，以使所述无线网络控制器控制所述第一基站向UE发送前向导入接入信道或高速下行链路共享信道。
  8. 根据权利要求7所述的方法，其特征在于，所述将所述随机接入消息转发给无线网络控制器，包括：
    对所述随机接入消息进行识别，若其自身为所述随机接入消息的发送目标，则根据所述随机接入消息向所述无线网络控制器发送上行链路。
  9. 根据权利要求8所述的方法，其特征在于，所述对所述随机接入消息进行识别，包括：
    根据所述UE发送的随机接入消息使用的扰码进行区分，判断所述UE发送的随机接入消息的发送目标；或者，
    根据所述UE发送的随机接入消息的控制部分指示信息判断其是否为所述随机接入消息的发送目标。
  10. 一种随机接入的干扰控制方法，其特征在于，所述方法包括：
    发送随机接入前导码，以使第二基站获取所述随机接入前导码，所述第二基站是所述UE驻留的第一基站所在小区的邻区所在的基站；
    接收所述第二基站下发的获取指示符信道；
    根据所述第二基站下发的获取指示符信道的指示判定所述第二基站是否允许上行接入，若允许上行接入，则向所述第二基站发送随机接入消息。
  11. 根据权利要求10所述的方法，其特征在于，所述发送随机接入前导码之前，还包括：
    接收无线网络控制器广播的所述第二基站的前导签名序列、扰码及获取指示符信道码道，获知所述第一基站配置为允许其在所述第二基站上行接入；
    检测到所述第二基站的下行信道质量高于上行接入门限；
    所述发送随机接入前导码，以使第二基站获取所述随机接入前导码，包括：使用所述广播的所述第二基站的前导签名序列及扰码向所述第二基站发送所述随机接入前导码，以使所述第二基站对所述随机接入前导码进行译码，并根据所述随机接入前导码识别出其为驻留在邻小区所在的UE，从而向所述UE下发获取指示符信道。
  12. 根据权利要求11所述的方法，其特征在于，所述检测到所述第二基站的下行信道质量高于上行接入门限，包括：
    获取相关参数，所述相关参数包括M_new、CIOnew、Mbest及RRACH；
    根据所述相关参数判断公式10logM_new+CIOnew≥10logMbest+RRACH是否成立，若成立，则确认检测到所述第二基站的下行信道质量高于上行接入门限；
    其中，所述M_new为所述第二基站的下行信道质量；
    所述M_new为所述第二基站的如下参数中的一种或多种组合：公共导频信道接收信号码功率CPICH_RSCP、码片功率噪声比Ec/N0、控制信道的信道质量、同步信道的信道质量；
    所述CIO_new为所述第二基站所在的小区测量值偏置；
    所述M_best为所述第一基站所在的小区的信道质量；
    所述RRACH为测量报告范围。
  13. 根据权利要求10至12任一项所述的方法，其特征在于，所述根据所述第二基站下发的获取指示符信道的指示判定所述第二基站是否允许上行接入，包括：
    检测到所述第二基站下发的获取指示符信道的签名序列与所述随机接入前导码的签名序列对应，对所述获取指示符信道的签名序列进行译码，根据译码结果判断所述第二基站是否允许上行接入。
  14. 根据权利要求10至13任一项所述的方法，其特征在于，所述向所述第二基站发送随机接入消息，包括：
    使用所述第二基站的扰码及扩频码向所述第二基站发送随机接入消息，所述扩频码预先约定或通过广播获取。
  15. 根据权利要求10所述的方法，其特征在于，所述发送随机接入前导码之前，还包括：
    接收无线网络控制器广播的所述第二基站的扰码及获取指示符信道码道，获知所述第一基站的配置为允许其在接收所述第一基站的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道；
    所述发送随机接入前导码，包括：向所述第一基站或所述第二基站发送随机接入前导码，以使所述第二基站获取到所述随机接入前导码。
  16. 根据权利要求15所述的方法，其特征在于，所述根据所述第二基站下发的获取指示符信道的指示判定所述第二基站是否允许上行接入，包括：
    检测所述第二基站下发的获取指示符信道的捕获指示AI部分设置的用于指示是否允许所述UE随机接入的参数值，根据所述参数值判定所述第二基站是否允许上行接入。
  17. 根据权利要求15或16所述的方法，其特征在于，所述向所述第二基站发送随机接入消息之前，还包括：
    判断是否接收到所述第一基站的获取指示符信道；
    如果是，则向所述第一基站发送随机接入消息。
  18. 根据权利要求10至17任一项所述的方法，其特征在于，还包括：
    接收所述第一基站发送的前向导入接入信道或高速下行链路共享信道。
  19. 根据权利要求10至18任一项所述的方法，其特征在于，
    所述随机接入消息使用所述第一基站或者所述第二基站的扰码进行加扰， 以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器；或者
    所述随机接入消息的控制部分设置指示信息，以使所述邻区基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器。
  20. 一种随机接入的干扰控制方法，其特征在于，所述方法包括：
    配置允许用户设备UE在第二基站上行接入或者允许所述UE在接收第一基站下发的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道，其中，所述第一基站为所述UE驻留的基站，所述第二基站为所述第一基站所在小区的邻区所在的基站；
    根据所述配置向所述UE广播所述第二基站的随机接入的相关信息，以使所述UE根据所述随机接入的相关信息进入随机接入流程；
    根据所述配置向所述第二基站发送所述第一基站的主扰码和广播的随机接入前导码，以使所述第二基站获取所述UE发送的随机接入前导码，向所述UE发送获取指示符信道，指示所述UE是否允许随机接入。
  21. 根据权利要求20所述的方法，其特征在于，当所述配置为允许用户设备UE随机接入所述第二基站时，所述随机接入的相关信息包括：所述第二基站的前导签名序列、扰码及获取指示符信道码道，其中所述前导签名序列与驻留在所述第二基站内的UE随机接入的前导签名序列不同；
    当所述配置为允许所述UE在接收所述第一基站下发的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道时，所述随机接入的相关信息包括：所述第二基站的扰码及获取指示符信道码道。
  22. 根据权利要求20或21所述的方法，其特征在于，还包括：
    接收所述第二基站和/或所述第一基站转发的随机接入消息；
    指示所述第一基站向所述UE发送前向导入接入信道或高速下行链路共享信道。
  23. 根据权利要求22所述的方法，其特征在于，接收到所述第二基站和所述第一基站转发的随机接入消息之后，还包括：
    对所述随机接入消息进行选择合并。
  24. 一种基站，其特征在于，包括：
    广播接收单元，用于获取无线网络控制设备广播的随机接入前导码的主扰码；
    前导码获取单元，用于获取用户设备UE发送的随机接入前导码；
    识别单元，用于根据所述广播的随机接入前导码的主扰码和所述UE发送的随机接入前导码，识别出所述UE是否为驻留在相邻小区所在的第一基站的UE；
    信道发送单元，用于在所述识别单元识别出所述UE为驻留在所述第一基站的UE时，向所述UE下发获取指示符信道，指示所述UE是否能够上行接入。
  25. 根据权利要求24所述的基站，其特征在于，
    所述前导码获取单元用于：接收所述UE发送的随机接入前导码；
    所述信道发送单元发送的所述获取指示符信道的时隙格式包括捕获指示AI部分，所述AI部分使用与所述UE发送的随机接入前导码的签名序列对应的签名序列，以使所述UE在检测到所述AI的签名序列与所述随机接入前导码的签名序列对应时，对所述AI的签名序列进行译码，并根据译码结果判定是否允许上行接入。
  26. 根据权利要求24所述的基站，其特征在于，所述前导码获取单元用于：监听所述UE向所述第一基站发送的随机接入前导码；
    所述信道发送单元，包括：
    资源评估模块，用于在所述前导码获取单元监听到所述随机接入前导码之后，评估所述基站是否有剩余资源；
    信道处理模块，用于在所述资源评估模块评估到所述基站有剩余资源时，向所述UE发送所述获取指示符信道，其中，所述获取指示符信道时隙包括AI部分及导频Pilot部分，所述AI部分设有指示是否允许所述UE随机接入的参数值，以使所述UE在被允许随机接入时发送随机接入消息，所述Pilot部分用于 所述UE对所述获取指示符信道进行信道估值；或者，还用于利用获取指示符信道使用多个时隙或传输时间间隔TTI重复发送。
  27. 根据权利要求24至26任一项所述的基站，其特征在于，还包括：
    接入消息接收单元，用于接收所述UE发送的随机接入消息；
    转发单元，用于将所述随机接入消息转发给无线网络控制器，以使所述无线网络控制器控制所述第一基站向UE发送相关信道。
  28. 根据权利要求27所述的基站，其特征在于，
    所述转发单元，还用于对所述随机接入消息进行识别，若所述随机接入消息是发给所述基站的，则将所述随机接入消息转发给所述无线网络控制器。
  29. 一种用户设备，其特征在于，包括：
    前导码发送单元，用于发送随机接入前导码，以使第二基站获取所述随机接入前导码，所述第二基站是所述UE驻留的第一基站所在小区的邻区所在的基站；
    上行信道接收单元，用于接收所述第二基站下发的获取指示符信道；
    接入消息发送单元，用于根据所述上行信道接收单元接收的获取指示符信道判定所述第二基站是否允许上行接入，若允许上行接入，则向所述第二基站发送随机接入消息。
  30. 根据权利要求29所述的用户设备，其特征在于，还包括：
    广播接收单元，用于接收无线网络控制器广播的所述第二基站的前导签名序列、扰码及获取指示符信道码道，获知其所在的第一基站配置为允许所述UE在所述第二基站上行接入；
    门限检测单元，用于在所述广播接收单元获知第一基站配置为允许所述UE在所述第二基站上行接入时，检测所述第二基站的下行信道质量是否高于上行接入门限；
    所述前导码发送单元，用于在所述门限检测单元检测到所述第二基站的下行信道质量高于所述上行接入门限时，根据所述广播的所述第二基站的前导签 名序列及扰码向所述第二基站发送所述随机接入前导码，以使所述第二基站所述对所述随机接入前导码进行译码，并根据所述随机接入前导码的签名序列识别出其为驻留在邻小区所在的UE，从而向其下发获取指示符信道。
  31. 根据权利要求29或30所述的用户设备，其特征在于，所述接入消息发送单元，包括：
    信道分析模块，用于检测所述上行信道接收单元接收的获取指示符信道，在检测到所述获取指示符信道的签名序列与所述前导码发送单元发送的随机接入前导码的签名序列对应时，译码所述获取指示符信道的签名序列，根据译码结果判断所述第二基站是否允许上行接入；
    发送模块，用于在所述信道分析模块判断所述第二基站允许上行接入时，向所述第二基站发送随机接入消息。
  32. 根据权利要求29所述的用户设备，其特征在于，还包括：
    广播接收单元，用于接收无线网络控制器广播的所述第二基站的扰码及获取指示符信道码道，获知所述第一基站配置为允许其在接收所述第一基站的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道；
    所述前导码发送单元用于：向所述第一基站或第二基站发送随机接入前导码，以使第二基站获取所述随机接入前导码。
  33. 根据权利要求32所述的用户设备，其特征在于，所述接入消息发送单元，包括：
    信道分析模块，用于检测所述上行信道接收单元接收的获取指示符信道的捕获指示AI部分设置的用于指示是否允许上行接入的参数值，根据所述参数值判定所述第二基站是否允许上行接入；
    发送模块，用于在所述信道分析模块判定所述第二基站允许上行接入时，向所述第二基站发送随机接入消息。
  34. 根据权利要求32或33所述的用户设备，其特征在于，
    所述上行信道接收单元，还用于接收所述第一基站下发的获取指示符信道；
    所述接入消息发送单元，还用于在所述上行信道接收单元同时收到所述第二基站下发的获取指示符信道与所述第一基站下发的获取指示符信道时，向所述第一基站发送随机接入消息。
  35. 根据权利要求29至34任一项所述的用户设备，其特征在于，
    所述接入消息发送单元，还用于在所述随机接入消息中使用所述第一基站或者所述第二基站的扰码进行加扰，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器；或者还用于在所述随机接入消息的控制部分设置指示信息，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器。
  36. 根据权利要求29至35任一项所述的用户设备，其特征在于，还包括：
    下行信道接收单元，用于接收所述第一基站发送的前向导入接入信道或高速下行链路共享信道。
  37. 一种无线网络控制设备，其特征在于，包括：
    配置单元，用于配置允许用户设备UE在第二基站上行接入，或者用于配置允许所述UE在接收所述第一基站下发的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道，其中，所述第一基站为所述UE驻留的基站，所述第二基站为所述第一基站所在小区的邻区所在的基站；
    广播单元，用于根据所述配置单元的配置向所述UE广播所述第二基站的随机接入的相关信息，以使所述UE获知所述配置，并根据所述随机接入的相关信息进入随机接入流程；还用于向所述第二基站发送所述第一基站广播的随机接入前导码的主扰码，以使所述第二基站获取所述UE发送的随机接入前导码后，根据所主扰码对所述随机接入前导码进行译码，向所述UE发送获取指示符信道。
  38. 根据权利要求37所述的无线网络控制设备，其特征在于，
    当所述配置为允许第一基站的用户设备UE随机接入第二基站时，所述广播 单元，用于向所述UE广播所述第二基站的前导签名序列、扰码及获取指示符信道码道，其中所述前导签名序列与驻留在所述第二基站内的UE随机接入的前导签名序列不同；
    当所述配置为允许所述UE在接收所述第一基站的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道时，所述广播单元，用于向所述UE广播所述第二基站的扰码及获取指示符信道码道。
  39. 根据权利要求37或38所述的无线网络控制设备，其特征在于，还包括：
    接收单元，用于接收所述第二基站和/或所述第一基站转发的随机接入消息；
    指示单元，用于根据所述随机接入消息指示所述第一基站向所述UE发送前向导入接入信道或高速下行链路共享信道。
  40. 根据权利要求39所述的无线网络控制设备，其特征在于，还包括：
    选择合并单元，用于在所述接收单元接收到所述第二基站和所述第一基站转发的随机接入消息时，对所述接收单元接收的随机接入消息进行选择合并。
  41. 一种随机接入系统，其特征在于，包括：
    如权利要求24至28任一项所述的基站；
    如权利要求29至36任一项所述的驻留在所述基站所在小区的邻区所在的基站的用户设备UE；
    如权利要求37至40任一项所述的无线网络控制器；
    所述UE驻留的基站，用于根据所述无线网络控制器的指示向所述UE发送所述前向导入接入信道或所述高速下行链路共享信道。
  42. 一种基站，其特征在于，包括：
    接收机，用于获取无线网络控制设备广播的随机接入前导码的主扰码以及用户设备UE发送的随机接入前导码；
    处理器，用于根据所述广播的随机接入前导码的主扰码和所述UE发送的随机接入前导码，识别所述UE是否为驻留在邻区所在的第一基站的UE；
    发送机，用于在所述处理器识别出所述UE为驻留在所述第一基站的UE时，向所述UE下发获取指示符信道，以指示所述UE是否能够上行接入。
  43. 根据权利要求42所述的基站，其特征在于，
    所述接收机用于，接收所述UE向发送的随机接入前导码；
    所述发送机发送的所述获取指示符信道的时隙格式包括捕获指示AI部分，所述AI部分使用与所述UE发送的随机接入前导码的签名序列对应的签名序列，以使所述UE在检测到所述AI的签名序列与所述随机接入前导码的签名序列对应时，对所述AI的签名序列进行译码，并根据译码的结果判定是否允许上行接入。
  44. 根据权利要求42所述的基站，其特征在于，
    所述接收机，用于监听所述UE向所述第一基站发送的随机接入前导码；
    所述处理器，用于在所述接收机监听到所述随机接入前导码之后，评估所述基站是否有剩余资源；
    所述发送机，还用于在所述处理器评估到所述基站有剩余资源时，向所述UE发送所述获取指示符信道，其中，所述获取指示符信道时隙包括AI部分及导频Pilot部分，所述AI部分设有指示是否允许所述UE上行接入的参数值，以使所述UE在被允许上行接入时发送随机接入消息，所述Pilot部分用于所述UE对所述获取指示符信道进行信道估值；或者，还用于利用所述获取指示符信道使用多个时隙或传输时间间隔TTI重复发送以增大所述UE的正确接收概率。
  45. 根据权利要求42至44任一项所述的基站，其特征在于，
    所述接收机，还用于接收所述UE发送的随机接入消息；
    所述发送机，还用于将所述随机接入消息转发给无线网络控制器，以使所述无线网络控制器控制所述第一基站向UE发送相关信道。
  46. 根据权利要求45所述的基站，其特征在于，
    所述处理器，还用于对所述随机接入消息进行识别；
    所述发送机，还用于在所述处理器识别出所述随机接入消息是发给所述基 站时，将所述随机接入消息转发给所述无线网络控制器。
  47. 一种用户设备，其特征在于，包括：
    发送机，用于发送随机接入前导码，以使第二基站获取所述随机接入前导码，所述第二基站为所述UE驻留的第一基站所在小区的邻区所在的基站；
    接收机，用于接收所述第二基站下发的获取指示符信道；
    处理器，用于根据所述接收机接收的获取指示符信道判定所述第二基站是否允许上行接入；
    所述发送机，还用于在所处理器判定所述第二基站允许上行接入时，向所述第二基站站发送随机接入消息。
  48. 根据权利要求47所述的用户设备，其特征在于，
    所述接收机，用于接收无线网络控制器广播的所述第二基站的前导签名序列、扰码及获取指示符信道码道；
    所述处理器，还用于根据所述接收机接收的所述第二基站的前导签名序列、扰码及获取指示符信道码道获知所述第一基站配置为允许所述UE在所述第二基站上行接入；以及用于在获知第一基站配置为允许所述UE在所述第二基站上行接入时，检测所述第二基站的下行信道质量是否高于上行接入门限；
    所述发送机，用于在所述处理器检测到所述第二基站的下行信道质量高于所述上行接入门限时，使用所述广播的所述第二基站的前导签名序列及扰码向所述第二基站发送所述随机接入前导码，以使所述第二基站所述对所述随机接入前导码进行译码，并根据所述随机接入前导码的签名序列识别出其为驻留在邻小区所在的UE，从而向其下发获取指示符信道。
  49. 根据权利要求47或48所述的用户设备，其特征在于，所述处理器，还用于在检测到所述获取指示符信道的签名序列与所述随机接入前导码的签名序列对应时，对所述获取指示符信道的签名序列进行译码，根据译码的结果判断所述第二基站是否允许上行接入；
    所述发送机，还用于在所述处理器判断所述第二基站允许上行接入时，向所述第二基站发送随机接入消息。
  50. 根据权利要求47所述的用户设备，其特征在于，
    所述接收机，用于接收无线网络控制器广播的所述第二基站的扰码及获取指示符信道码道；
    所述处理器，还用于根据所述接收机接收无线网络控制器广播的所述第二基站的扰码及获取指示符信道码道，获知所述第一基站配置为允许其在接收所述第一基站的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道；
    所述发送机，用于向所述第一基站或所述第二基站发送随机接入前导码，以使第二基站获取所述随机接入前导码。
  51. 根据权利要求50所述的用户设备，其特征在于，
    所述处理器，还用于检测所述第二基站下发的获取指示符信道的捕获指示AI部分设置的用于指示是否允许上行接入的参数值，根据所述参数值判定所述第二基站是否允许上行接入；
    所述发送机，还用于在所述处理器判定所述第二基站允许上行接入时，向所述第二基站发送随机接入消息。
  52. 根据权利要求50或51所述的用户设备，其特征在于，
    所述接收机，还用于接收所述第一基站下发的获取指示符信道；
    所述处理器，还用于判断所述接收机在接收到所述第二基站下发的获取指示符信道时，是否接收到所述第一基站的获取指示符信道；
    所述发送机，在所述处理器判断所述接收机接收到所述第一基站的获取指示符信道时，向所述第一基站发送随机接入消息。
  53. 根据权利要求47至52任一项所述的用户设备，其特征在于，
    所述发送机，还用于在所述随机接入消息中使用所述第一基站或者所述第二基站的扰码进行加扰，以使所述第二基站或所述第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器；或者还用于在所述随机接入消息的控制部分设置指示信息，以使所述第二基站或所述 第一基站收到所述随机接入消息时识别是否需要将所述随机接入消息转发给所述无线网络控制器。
  54. 根据权利要求47至53任一项所述的用户设备，其特征在于，所述接收机，还用于接收所述第一基站发送的前向导入接入信道或高速下行链路共享信道。
  55. 一种无线网络控制设备，其特征在于，包括：
    处理器，用于配置允许用户设备UE在第二基站上行接入，或者用于配置允许所述UE在接收所述第一基站下发的获取指示符信道的时间内接收所述第二基站下发的获取指示符信道，其中，所述第一基站为所述UE驻留的基站，所述第二基站为所述第一基站所在小区的邻区所在的基站；
    发送机，用于根据所述处理器的配置向所述UE广播所述第二基站的随机接入的相关信息，以使所述UE获知所述配置，并根据所述随机接入的相关信息进入随机接入流程；还用于向所述第二基站发送所述第一基站广播的随机接入前导码的主扰码，以使所述第二基站获取所述UE发送的随机接入前导码后，根据所主扰码对所述随机接入前导码进行译码，向所述UE发送获取指示符信道。
  56. 根据权利要求55所述的无线网络控制设备，其特征在于，
    所述发送机，用于当所述配置为允许用户设备UE随机接入所述第二基站时，向所述UE广播所述第二基站的前导签名序列、扰码及获取指示符信道码道，其中所述前导签名序列与驻留在所述第二基站内的UE随机接入的前导签名序列不同；或者，
    所述发送机，用于当所述配置为允许所述第一基站的UE在接收第一基站的获取指示符信道的时间内接收所述第二基站的获取指示符信道时，向所述UE广播所述第二基站的扰码及获取指示符信道码道。
  57. 根据权利要求55或56所述的无线网络控制设备，其特征在于，还包括接收机，
    所述接收机，用于接收所述第二基站和/或所述第一基站转发的随机接入消 息；
    所述发送机，还用于根据所述随机接入消息指示所述第一基站向所述UE发送前向导入接入信道或高速下行链路共享信道。
  58. 根据权利要求57所述的无线网络控制设备，其特征在于，
    所述处理器，还用于在所述接收机接收到所述第二基站和所述第一基站转发的随机接入消息时，对所述接收机接收的随机接入消息进行选择合并。
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