WO2015101041A1 - 随机接入方法及装置 - Google Patents

随机接入方法及装置 Download PDF

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Publication number
WO2015101041A1
WO2015101041A1 PCT/CN2014/083887 CN2014083887W WO2015101041A1 WO 2015101041 A1 WO2015101041 A1 WO 2015101041A1 CN 2014083887 W CN2014083887 W CN 2014083887W WO 2015101041 A1 WO2015101041 A1 WO 2015101041A1
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WO
WIPO (PCT)
Prior art keywords
base station
downlink assignment
assignment information
preamble
message
Prior art date
Application number
PCT/CN2014/083887
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English (en)
French (fr)
Inventor
权威
杨晓东
胡振兴
张戬
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.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP14876704.9A priority Critical patent/EP3082371B1/en
Publication of WO2015101041A1 publication Critical patent/WO2015101041A1/zh
Priority to US15/197,289 priority patent/US10462822B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal

Definitions

  • the present invention claims the priority of the Chinese Patent Application entitled “Random Access Method and Apparatus” filed on December 31, 2013 by the Chinese Patent Office, Application No. 201310753912.1, the entire contents of which are incorporated by reference.
  • TECHNICAL FIELD The present invention relates to the field of communications technologies, and in particular, to a random access method and apparatus. Background technique
  • a method for randomly accessing a wireless communication network by a user equipment may be classified into two types: non-contention based random access and contention based random access.
  • the base station sends a random access response message to the UE, and the base station needs to pass the PDCCH before sending the uplink message to the base station according to the random access response message.
  • the (Physical Downlink Control Channel) channel sends the scheduling signaling of the random access response message to the UE, where the scheduling signaling of the random access response message includes the UE receiving the random connection Information such as the physical resource, modulation and coding scheme, redundancy version, HARQ (Hybrid Automatic Repeat Request) process number used in the response message.
  • multiple channels used for communication between the UE and the base station need to be enhanced, including the PDCCH channel; and, a typical enhancement method is to repeatedly transmit the content on the channel.
  • the scheduling signaling of the random access response message is repeatedly transmitted on the PDCCH channel, which causes channel resource waste and access delay.
  • the embodiment of the present invention provides a random access method, which solves the problem of channel resource waste caused by using the PDCCH channel repeated random access response message transmission scheduling signaling in the existing random access method. And access delay issues.
  • the proposed scheme is as follows:
  • a first aspect of the embodiments of the present invention provides a random access method, including:
  • the base station Obtaining, by the base station, the first downlink assignment information corresponding to the preamble received by the base station according to the mapping relationship between the first downlink assignment information and the preamble obtained in advance; wherein, the first downlink assignment information is Downlink assignment information used by the random access response message;
  • the base station sends a random access response message to the UE according to the first downlink assignment information.
  • the method further includes:
  • the base station Receiving, by the base station, the uplink message sent by the UE by using the first uplink grant information obtained in advance; where the uplink message carries the identifier information of the UE, where the first uplink grant information is the uplink message Uplink authorization information used;
  • the base station generates a contention resolution message according to the identifier information of the UE carried in the uplink message;
  • the base station sends the contention resolution message to the UE by using the second downlink assignment information that is obtained in advance, where the second downlink assignment information is downlink assignment information used by the contention resolution message.
  • the first downlink assignment information is carried in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station.
  • the manner in which the base station obtains the first uplink authorization information in advance includes:
  • the base station acquires a mapping relationship between the first uplink grant information and the preamble
  • the mapping relationship between the first uplink grant information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station.
  • the base station obtains the first uplink authorization information in advance.
  • the base station acquires first uplink grant information carried in the random access response message sent by the base station.
  • the manner in which the base station obtains the second downlink assignment information in advance includes:
  • the mapping relationship between the second downlink assignment information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station.
  • the manner in which the base station obtains the second downlink assignment information in advance includes:
  • the base station acquires second downlink assignment information carried in the random access response message sent by the base station.
  • the base station sends the random access response message
  • the base station In the broadcast message sent by the base station or in the dedicated message sent by the base station, the communication protocol further includes a time when the UE receives the contention resolution message.
  • the base station generates, according to the identifier information of the UE that is carried by the uplink message,
  • the competition resolution message includes:
  • the base station uses the identification information of the UE to mask the contention resolution message
  • the base station writes the identification information of the UE into the contention resolution message.
  • the contention resolution message further includes:
  • the third downlink assignment information is used to control the base station at least twice When the UE sends data, the contention resolution message further includes: an interval used by the third downlink assignment information.
  • the second uplink authorization information is used to control the base station receiving at least twice.
  • the contention resolution message further includes: an interval used by the second uplink authorization information.
  • a second aspect of the embodiments of the present invention provides a random access method, including: a user equipment UE sends a preamble to a base station;
  • the first downlink assignment information corresponding to the preamble sent by the UE according to the mapping relationship between the first downlink assignment information and the preamble obtained in advance; wherein, the first downlink assignment information is Downlink assignment information used by the random access response message;
  • the method further includes:
  • the UE sends an uplink message to the base station by using the first uplink grant information obtained in advance, where the uplink message carries the identifier information of the UE, where the first uplink grant information is used by the uplink message.
  • Uplink authorization information ;
  • the UE receives the contention resolution message sent by the base station by using the second downlink assignment information obtained in advance; wherein the second downlink assignment information is downlink assignment information used by the contention resolution message;
  • the competition resolved the message and got the result of the competition.
  • the first downlink assignment information is carried in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station.
  • the manner that the UE obtains the first uplink authorization information in advance includes: Obtaining a mapping relationship between the first uplink grant information and the preamble; Obtaining, by the UE, first uplink grant information corresponding to the preamble sent by the UE, according to the mapping relationship between the first uplink grant information and the preamble;
  • the mapping relationship between the first uplink grant information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station.
  • the method for the UE to obtain the first uplink authorization information in advance includes:
  • the UE acquires the first uplink grant information carried in the random access response message received by the UE.
  • the method for the UE to obtain the second downlink assignment information in advance includes:
  • the UE acquires a mapping relationship between the second downlink assignment information and the preamble
  • the mapping relationship between the second downlink assignment information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station.
  • the method for the UE to obtain the second downlink assignment information in advance includes:
  • the method further includes:
  • the UE obtains a contention resolution result packet according to the contention resolution message.
  • the UE obtains a contention resolution result according to the identifier information of the UE.
  • the UE obtains a contention resolution result according to the contention resolution message, including:
  • the UE obtains a contention resolution result according to the identifier information of the UE.
  • the contention information received by the UE further includes:
  • the third downlink assignment information is used to control the UE at least twice.
  • the contention resolution message further includes: an interval used by the third downlink assignment information.
  • the second uplink authorization information is used to control the UE direction at least twice.
  • the contention resolution message further includes: a time interval of using the second uplink authorization information.
  • a third aspect of the embodiments of the present invention provides a base station, including:
  • a first receiving unit configured to receive a preamble sent by the user equipment UE
  • a first acquiring unit configured to acquire, according to a mapping relationship between the first downlink assignment information and the preamble obtained in advance, first downlink assignment information corresponding to the preamble received by the first receiving unit, where The first downlink assignment information is downlink assignment information used by the random access response message;
  • a first sending unit configured to send a random access response message to the UE according to the first downlink assignment information.
  • the base station further includes: a second receiving unit, configured to receive, by using the first uplink authorization information that is obtained in advance, an uplink message that is sent by the UE, where the uplink message carries the identifier information of the UE, where the first uplink authorization information is The uplink authorization information used by the uplink message;
  • a generating unit configured to generate a contention resolution message according to the identifier information of the UE carried in the uplink message
  • a second sending unit configured to send the contention resolution message to the UE by using the second downlink assignment information that is obtained in advance, where the second downlink assignment information is downlink assignment information used by the contention resolution message.
  • the first downlink assignment information is carried in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station.
  • the method further includes:
  • a second acquiring unit configured to acquire a mapping relationship between the first uplink grant information and the preamble, where the mapping relationship between the first uplink grant information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or The dedicated message sent by the base station;
  • a third acquiring unit configured to acquire, according to the mapping relationship between the first uplink grant information and the preamble acquired by the second acquiring unit, the first uplink grant information corresponding to the preamble received by the first receiving unit .
  • the method further includes:
  • a fourth acquiring unit configured to acquire first uplink grant information carried in the random access response message sent by the first sending unit.
  • the method further includes:
  • a fifth acquiring unit configured to acquire a mapping relationship between the second downlink assignment information and the preamble, where the mapping relationship between the second downlink assignment information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or The dedicated message sent by the base station;
  • a sixth acquiring unit configured to acquire second downlink assignment information corresponding to the preamble received by the first receiving unit according to the mapping relationship between the second downlink assignment information and the preamble acquired by the fifth acquiring unit.
  • the method further includes:
  • a seventh acquiring unit configured to acquire second downlink assignment information carried in the random access response message sent by the first sending unit.
  • the base station sends the random access response message
  • the base station In the broadcast message sent by the base station or in the dedicated message sent by the base station, the communication protocol further includes a time when the UE receives the contention resolution message.
  • the generating unit includes:
  • a first generating unit configured to: use the identifier information of the UE to mask the contention resolution message; and the second generating unit is configured to write the identifier information of the UE into the contention resolution message.
  • the contention resolution message further includes:
  • the third downlink assignment information is used to control the base station at least twice When the UE sends data, the contention resolution message further includes: an interval used by the third downlink assignment information.
  • the second uplink authorization information is used to control the base station at least twice.
  • the contention resolution message further includes: an interval used by the second uplink authorization information.
  • a fourth aspect of the embodiments of the present invention provides a user equipment UE, including:
  • a first sending unit configured to send a preamble to the base station
  • a first acquiring unit configured to acquire, according to a mapping relationship between the first downlink assignment information and the preamble obtained in advance, first downlink assignment information corresponding to the preamble sent by the first sending unit, where The first downlink assignment information is downlink assignment information used by the random access response message;
  • a first receiving unit configured to receive, according to the first downlink assignment information, a random access response message sent by the base station.
  • the method further includes:
  • a second sending unit configured to send, by using the previously obtained first uplink grant information, an uplink message to the base station, where the uplink message carries the identifier information of the UE, where the first uplink grant information is the uplink
  • the uplink authorization information used by the message
  • a second receiving unit configured to receive, by using the second downlink assignment information that is obtained in advance, a contention resolution message that is sent by the base station, where the second downlink assignment information is downlink assignment information used by the contention resolution message;
  • the competition result generating unit is configured to obtain a competition resolution result according to the competition resolution message.
  • the first downlink assignment information is carried in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station.
  • the method further includes:
  • a second acquiring unit configured to acquire a mapping relationship between the first uplink grant information and the preamble, where the mapping relationship between the first uplink grant information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or The dedicated message sent by the base station;
  • a third acquiring unit configured to obtain, according to the mapping relationship between the first uplink grant information and the preamble, the first uplink grant information corresponding to the preamble sent by the first sending unit.
  • the method further includes:
  • a fourth acquiring unit configured to acquire first uplink grant information carried in the random access response message received by the first receiving unit.
  • the fourth embodiment of the present invention In conjunction with the first embodiment of the fourth aspect of the embodiments of the present invention, the fourth embodiment of the present invention In a fifth implementation manner, the method further includes:
  • a fifth acquiring unit configured to acquire a mapping relationship between the second downlink assignment information and the preamble, where the mapping relationship between the second downlink assignment information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or The dedicated message sent by the base station;
  • a sixth acquiring unit configured to obtain, according to the mapping relationship between the second downlink assignment information and the preamble, second downlink assignment information corresponding to the preamble sent by the first sending unit.
  • the method further includes:
  • a seventh acquiring unit configured to acquire second downlink assignment information carried in the random access response message received by the first receiving unit.
  • the method further includes:
  • An eighth acquiring unit configured to acquire a time when the first receiving unit receives the contention resolution message, where the first receiving unit receives the content of the contention resolution message and carries the random connection sent by the base station In the response message, in the communication protocol, in the broadcast message sent by the base station, or in the dedicated message sent by the base station.
  • the competitive result generating unit includes:
  • a de-masking unit configured to de-mask the contention resolution message to obtain identification information of the UE
  • a first contention result generation sub-unit configured to obtain a contention resolution result according to the identifier information of the UE.
  • the competitive result generating unit includes:
  • the ninth obtaining unit is configured to obtain the identifier information of the UE that is carried in the contention resolution message
  • the second contention result generating unit is configured to obtain a contention resolution result according to the identifier information of the UE.
  • the contention resolution message that is received by the UE further includes:
  • the third downlink assignment information is used to control the at least two times
  • the contention resolution message further includes: an interval used by the third downlink assignment information.
  • the second uplink authorization information is used to control the UE at least twice.
  • the contention resolution message further includes: a time interval of using the second uplink grant information.
  • the first downlink assignment information is obtained by using the mapping relationship between the first downlink assignment information and the preamble, where the A downlink assignment information is downlink assignment information used by the random access response message, and does not need to repeat the transmission scheduling signaling of the random access response message by using the PDCCH channel, thereby solving the existing random access method The problem of channel resource waste and access delay caused by repeatedly transmitting the scheduling signaling of the random access response message by using the PDCCH channel.
  • FIG. 1 is a schematic structural view of a communication system
  • FIG. 2 is a sequence diagram of a random access method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a random access method according to an embodiment of the present invention.
  • FIG. 4 is a sequence diagram of a random access method according to another embodiment of the present invention.
  • FIG. 5 is a flowchart of a random access method according to another embodiment of the present invention.
  • FIG. 6 is a sequence diagram of a random access method according to another embodiment of the present invention.
  • FIG. 7 is a sequence diagram of a random access method according to another embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a base station according to another embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a user equipment according to another embodiment of the present invention. detailed description
  • the technical solution provided by the embodiment of the present invention can be applied to various wireless communication networks, for example, a global system for mobile communication (GSM) system, a code division multiple access (CDMA) system.
  • GSM global system for mobile communication
  • CDMA code division multiple access
  • WCDMA Wideband code division multiple access
  • UMTS universal mobile telecommunication system
  • GPRS general packet radio service
  • LTE Long term evolution
  • LTE-A advanced term evolution
  • WiMAX worldwide interoperability for microwave access
  • a base station may be a user equipment
  • the base station may be a base transceiver station (Base Transceiver Station, BTS for short) or a base station controller (BSC) in GSM or CDMA; or may be a Node B in UMTS (Node B, abbreviated as It is a radio network controller (RNC) in NB or UMTS; it may also be an evolved Node B (EB or eNodeB) in LTE; or it may be a wireless communication network.
  • BTS Base Transceiver Station
  • BSC base station controller
  • Node B Node B, abbreviated as It is a radio network controller (RNC) in NB or UMTS
  • RNC radio network controller
  • EB evolved Node B
  • eNodeB evolved Node B
  • LTE Long Term Evolution
  • Other access network devices that provide access services in the present invention are not limited in the present invention.
  • UEs may be distributed throughout the wireless network, and each UE may be static or mobile.
  • a UE may be referred to as a terminal, a mobile station, a subscriber unit, a station, or the like.
  • the UE may be a cellular phone, a personal digital assistant (PDA), a wireless modem (modem), a wireless communication device, a handheld device, a laptop computer, a cordless telephone. (cordless phone), wireless local loop (wireless local loop, Referred to as WLL) Taiwan.
  • PDA personal digital assistant
  • modem wireless modem
  • WLL wireless local loop
  • Taiwan wireless local loop
  • the UE may be referred to as an M2M terminal, and may specifically be a smart meter, a smart home appliance, or the like that supports M2M communication.
  • FIG. 1 is a communication system according to an embodiment of the present invention, including a UE 101, and a base station 102 that provides an access service for the UE 101.
  • the UE 101 is configured to send a preamble to the base station 102.
  • the base station 102 is configured to acquire, according to a mapping relationship between the first downlink assignment information and the preamble obtained in advance, a first downlink corresponding to the preamble received by the base station. After the row assignment information, the random access response message is sent to the UE according to the first downlink assignment information.
  • the communication system uses a random connection provided by the embodiment of the present invention.
  • the random access method includes:
  • the base station receives a preamble sent by the user equipment UE.
  • the preamble sent by the UE may be a preamble that the base station configures for the UE.
  • the random access method disclosed in this embodiment is a non-contention based random access method. .
  • the base station when the base station configures a dedicated preamble for the UE, the base station is further configured as
  • the UE configures a PRACH (Physical Random Access Channel) resource of the preamble.
  • a PRACH Physical Random Access Channel
  • the manner in which the base station configures a dedicated preamble and a PRACH resource of the preamble for the UE may be configured by using a command transmitted on a PDCCH (Physical Downlink Control Channel), or It is configured through RRC (Radio Resource Control) message.
  • PDCCH Physical Downlink Control Channel
  • RRC Radio Resource Control
  • the preamble sent by the UE may also be a preamble randomly selected by the UE, and the UE sends a preamble to the base station on the available PRACH resource.
  • the base station acquires, according to the mapping relationship between the first downlink assignment information and the preamble obtained in advance, the first downlink assignment information corresponding to the preamble received by the base station;
  • the first downlink assignment information is downlink assignment information used by the random access response message
  • the base station after receiving the preamble, the base station needs to send a random access response message to the UE that sends the preamble, and needs to obtain a random access response message before sending the random access response message.
  • the downlink assignment information used that is, the first downlink assignment information.
  • the first downlink assignment information includes: the object used by the random access response message Information such as resource, modulation and coding, redundancy, and HARQ (Hybrid Automatic Repeat Request) process number.
  • the random access response message Information such as resource, modulation and coding, redundancy, and HARQ (Hybrid Automatic Repeat Request) process number.
  • the first downlink assignment information and the preamble have a mapping relationship
  • the base station may obtain, by using the mapping relationship, first downlink assignment information of a preamble received by the base station, where
  • An example of a mapping relationship between the first downlink assignment information and the preamble is as follows:
  • the preamble 1 the physical resource in the corresponding first downlink assignment information is PRB 0-6, the modulation and coding mode is QPSK, 1/3 coded, the redundancy version is 1 , and the HARQ process number is 1;
  • the preamble 2 the physical resource in the corresponding first downlink assignment information is PRB 7 - 1 1 , the modulation and coding mode is QPSK, the 1/3 code, the redundancy version is 1, and the HARQ process number is 2.
  • the manner in which the mapping information of the first downlink assignment information and the preamble obtained by the base station is obtained in advance includes:
  • the base station sends a random access response message to the UE according to the first downlink assignment information.
  • the first downlink assignment information is obtained by using the mapping relationship between the first downlink assignment information and the preamble, where the first downlink assignment information is random access
  • the downlink assignment information used by the response message does not need to repeat the transmission scheduling signaling of the random access response message by using the PDCCH channel, and solves the problem that the existing random access method repeatedly transmits the PDCCH channel repeatedly.
  • the base station and the UE respectively obtain the mapping relationship provided by the embodiment of the present invention.
  • the downlink assignment information used by the random access response message corresponding to the preamble is a solution proposed by those skilled in the art in solving the existing problems applied to the contention based random access method. Then, those skilled in the art have found that the scheme can also be applied to a non-contention based random access method, but the process of the above scheme is applied to a non-contention based random access method, which is available to those skilled in the art. It is also said that creative work is required.
  • Another embodiment of the present invention further discloses a random access method, which, in conjunction with FIG. 3 and FIG. 4, includes:
  • the base station receives a preamble sent by the user equipment UE.
  • the base station acquires first downlink assignment information corresponding to the preamble received by the base station according to the mapping relationship between the first downlink assignment information and the preamble obtained in advance;
  • the first downlink assignment information is downlink assignment information used by the random access response message
  • S203 The base station sends a random access response message to the UE according to the first downlink assignment information.
  • the base station uses the first uplink grant information obtained in advance to receive the uplink message sent by the UE.
  • the uplink message carries the identifier information of the UE, where the first uplink grant information is uplink grant information used by the uplink message.
  • the UE After the base station sends the random access response message to the UE, the UE returns an uplink message to the base station, and the base station needs to obtain an uplink message before receiving the uplink message sent by the UE.
  • the uplink grant information used that is, the first uplink grant information.
  • the first uplink authorization information includes: a physical resource used by the uplink message, a modulation and coding mode, a redundancy version, and a HARQ (Hybrid Automatic Repeat Request) process number.
  • a physical resource used by the uplink message includes: a modulation and coding mode, a redundancy version, and a HARQ (Hybrid Automatic Repeat Request) process number.
  • HARQ Hybrid Automatic Repeat Request
  • the manner in which the base station obtains the first uplink authorization information in advance may include:
  • the base station acquires a mapping relationship between the first uplink grant information and the preamble
  • the mapping relationship between the first uplink grant information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station;
  • the first uplink authorization information obtained by the base station may be:
  • the base station acquires first uplink grant information carried in the random access response message sent by the base station.
  • the random access response message sent by the base station carries the first uplink grant in advance
  • the right information the base station may obtain the first uplink authorization information by using the random access response message.
  • the base station generates a contention resolution message according to the identifier information of the UE carried in the uplink message.
  • the manner in which the base station generates a contention resolution message according to the identifier information of the UE includes the following two types:
  • the base station generates a contention resolution message by writing the identification information of the UE into the contention resolution message.
  • the base station generates a contention resolution message by using the identifier information of the UE and masking the contention resolution message.
  • the base station may further write the identifier information of the UE into the contention resolution message, and then use the identifier information of the UE to mask.
  • the base station sends the contention resolution message to the UE by using the second downlink assignment information that is obtained in advance.
  • the second downlink assignment information is downlink assignment information used by the contention resolution message. Specifically, after the base station generates the contention resolution message, the base station sends the contention resolution message to the UE by using the downlink assignment information used by the contention resolution message. Therefore, the base station needs to obtain the contention.
  • the downlink assignment information used by the message, that is, the second downlink assignment information is solved.
  • the downlink assignment information used by the contention resolution message includes: a physical resource used by the contention resolution message, a modulation and coding mode, a redundancy version, and a HARQ (Hybrid Automatic Repeat Request, hybrid automatic). Retransmission request) process number and other information.
  • HARQ Hybrid Automatic Repeat Request, hybrid automatic). Retransmission request
  • the manner in which the base station obtains the second downlink assignment information in advance includes:
  • the mapping relationship between the second downlink assignment information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station.
  • the manner in which the base station obtains the second downlink assignment information in advance may be: the base station acquires a second carried in the random access response message sent by the base station. Downstream assignment information.
  • the random access response message sent by the base station carries the second downlink assignment information, and the base station can obtain the second downlink assignment by reading data in the random access response message. information.
  • the random access response message sent by the base station may further carry the time when the UE receives the contention resolution message.
  • the time that the UE that is in the random access response message that receives the contention resolution message may be an absolute time, or may be the time of receiving the contention resolution message and the random access response message. The interval of reception time.
  • the time when the UE receives the contention resolution message may be carried in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station.
  • the time that the UE receives the contention resolution message may be an absolute time, or may be an interval between the time when the contention resolution message is received and the time when the random access response message is received.
  • the contention resolution message sent by the base station may further carry third downlink assignment information used by the base station to send data to the UE, where
  • the third downlink assignment information includes: a physical resource used by the data sent by the base station, and a modulation and transmission request process number and the like.
  • the base station may acquire the third downlink assignment information in the contention resolution message, and send data according to the third downlink assignment information.
  • the contention resolution message further carries the third downlink assignment information. Interval and number of uses.
  • the contention resolution message sent by the base station may also carry the second uplink authorization information used by the base station to receive the data sent by the UE, where the second uplink authorization information includes: The physical resources used by the base station, the modulation and coding scheme, the redundancy version, and the HARQ (Hybrid Automatic Repeat Request) process number.
  • the second uplink authorization information includes: The physical resources used by the base station, the modulation and coding scheme, the redundancy version, and the HARQ (Hybrid Automatic Repeat Request) process number.
  • the base station may obtain the second uplink grant information in the contention resolution message, and receive the data sent by the UE according to the second uplink grant information.
  • the contention resolution message further carries: an interval time used by the second uplink authorization information and a number of uses.
  • Another embodiment of the present invention further discloses a random access method. Referring to FIG. 6, the method includes:
  • the user equipment UE sends a preamble to the base station.
  • the preamble sent by the UE is a preamble that the base station configures for the UE.
  • the random access method disclosed in this embodiment is a non-contention based randomization.
  • the access method may be: the preamble sent by the UE may be a preamble randomly selected by the UE, where the UE sends a preamble to the base station on the available PRACH resources.
  • the base station When the preamble sent by the UE is a preamble configured by the base station for the UE, when the base station configures a dedicated preamble for the UE, the base station further configures the preamble for the UE.
  • the PRACH Physical Random Access Channel
  • the manner in which the base station configures a dedicated preamble and a PRACH resource of the preamble for the UE may be configured by using a command transmitted on a PDCCH (Physical Downlink Control Channel), or It is configured through RRC (Radio Resource Control) message.
  • PDCCH Physical Downlink Control Channel
  • RRC Radio Resource Control
  • the UE acquires first downlink assignment information corresponding to the preamble sent by the UE according to the mapping relationship between the first downlink assignment information and the preamble obtained in advance;
  • the first downlink assignment information is downlink assignment information used by the random access response message
  • the first downlink assignment information includes: a physical resource used by the random access response message, a modulation and coding scheme, a redundancy version, and a HARQ (Hybrid Automatic Repeat Request). Request) information such as the process number.
  • HARQ Hybrid Automatic Repeat Request
  • the manner in which the mapping relationship between the first downlink assignment information and the preamble is obtained in advance includes the following three types:
  • the UE receives a random access response message sent by the base station according to the first downlink assignment information.
  • the first downlink assignment information is obtained by using the mapping relationship between the first downlink assignment information and the preamble, where the first downlink assignment information is random.
  • the downlink assignment information used by the access response message does not need to repeat the transmission scheduling signaling of the random access response message by using the PDCCH channel, and solves the problem that the PDCCH channel is duplicated by using the PDCCH channel in the existing random access method. The problem of channel resource waste and access delay caused by transmitting scheduling signaling of random access response messages.
  • Another embodiment of the present invention further discloses a random access method. Referring to FIG. 7, the method includes:
  • the user equipment sends a preamble to the base station.
  • the UE acquires first downlink assignment information corresponding to the preamble sent by the UE according to the mapping relationship between the first downlink assignment information and the preamble obtained in advance;
  • the first downlink assignment information is downlink assignment information used by the random access response message
  • the UE receives a random access response message sent by the base station according to the first downlink assignment information.
  • the UE sends an uplink message to the base station by using the first uplink authorization information obtained in advance.
  • the uplink message carries the identifier information of the UE, where the first uplink grant information is uplink grant information used by the uplink message.
  • the first uplink authorization information includes: a physical resource used by the uplink message, a modulation and coding mode, a redundancy version, and a HARQ (Hybrid Automatic Repeat Request) process number.
  • a physical resource used by the uplink message includes: a modulation and coding mode, a redundancy version, and a HARQ (Hybrid Automatic Repeat Request) process number.
  • HARQ Hybrid Automatic Repeat Request
  • the UE sends an uplink message to the base station, and needs to determine the uplink authorization information used by the uplink message.
  • the following is specifically described by using two embodiments.
  • the UE acquires a mapping relationship between the first uplink grant information and the preamble; the UE acquires and performs the mapping according to the mapping relationship between the first uplink grant information and the preamble.
  • mapping relationship between the first uplink grant information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station.
  • the UE acquires the first uplink authorization information carried in the random access response message received by the UE.
  • the method further includes:
  • the time when the UE receives the contention resolution message is carried in a random access response message sent by the base station, in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station. in.
  • the UE only needs to receive the time when the UE receives the contention resolution message, and the resource overhead of the UE may be saved.
  • S405 The UE uses the second downlink assignment information obtained in advance to receive the contention resolution message sent by the base station.
  • the second downlink assignment information is the downlink assignment information used by the contention resolution message.
  • the second downlink assignment information includes: a physical resource used by the contention resolution message, a modulation and coding manner, and redundancy.
  • the UE before receiving the contention resolution message sent by the base station, the UE also needs to know the downlink assignment information used by the contention resolution message.
  • the specific implementation may include:
  • the UE acquires a mapping relationship between the second downlink assignment information and the preamble
  • the mapping relationship between the second downlink assignment information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or in a dedicated message sent by the base station.
  • the UE may also obtain the second downlink assignment information carried in the random access response message received by the UE.
  • S406 The UE obtains a contention resolution result according to the contention resolution message.
  • the UE is obtained according to the contention resolution message.
  • the way to compete for the outcome includes:
  • the UE obtains a contention resolution result according to the identifier information of the UE.
  • the manner in which the UE obtains a contention resolution result according to the contention resolution message may further include:
  • the UE obtains a contention resolution result according to the identifier information of the UE.
  • the contention resolution message received by the UE further includes: the UE receiving the base station to send Third downlink assignment information used by the data;
  • the third downlink assignment information includes: physical resources used by the base station, a modulation and coding scheme, a redundancy version, and a HARQ (Hybrid Automatic Repeat Request) process number.
  • HARQ Hybrid Automatic Repeat Request
  • the contention resolution message further includes: an interval used by the third downlink assignment information And the number of uses.
  • the contention resolution message received by the UE further includes: second uplink grant information used by the UE to send data to the base station;
  • the second uplink grant information includes: physical resources used by the base station, a modulation and coding scheme, a redundancy version, and a HARQ (Hybrid Automatic Repeat Request) process number.
  • HARQ Hybrid Automatic Repeat Request
  • the contention resolution message further includes: a time interval of using the second uplink grant information And the number of uses.
  • Another embodiment of the present invention further discloses a base station. Referring to FIG. 8, the method includes:
  • the first receiving unit 101 is configured to receive a preamble sent by the user equipment UE.
  • the first obtaining unit 102 is configured to acquire first downlink assignment information corresponding to the preamble received by the first receiving unit 101 according to the mapping relationship between the first downlink assignment information and the preamble obtained in advance;
  • the first downlink assignment information is downlink assignment information used by the random access response message;
  • the first sending unit 103 is configured to send a random access response message to the UE according to the first downlink assignment information.
  • the first acquiring unit 102 obtains the first downlink assignment information by using the mapping relationship between the first downlink assignment information and the preamble, where the first downlink assignment information is random access.
  • the downlink assignment information used by the response message does not need to repeat the transmission scheduling signaling of the random access response message by using the PDCCH channel, and solves the problem that the existing random access method repeatedly transmits the PDCCH channel repeatedly. The problem of channel resource waste and access delay caused by the scheduling signaling of the access response message.
  • Another embodiment of the present invention further discloses a base station. Referring to FIG. 9, the method includes:
  • the first receiving unit 201 is configured to receive a preamble sent by the user equipment UE.
  • the first obtaining unit 202 is configured to acquire first downlink assignment information corresponding to the preamble received by the first receiving unit 201, according to the mapping relationship between the first downlink assignment information and the preamble obtained in advance;
  • the first downlink assignment information is the downlink assignment information used by the random access response message.
  • the mapping relationship between the first downlink assignment information and the preamble is carried in the communication protocol. And a broadcast message sent by the base station or a dedicated message sent by the base station.
  • the first sending unit 203 is configured to send a random access response message to the UE according to the first downlink assignment information.
  • the second receiving unit 204 is configured to receive, by using the first uplink authorization information that is obtained in advance, an uplink message that is sent by the UE, where the uplink message carries the identifier information of the UE, and the first uplink authorization information.
  • the generating unit 205 is configured to generate a contention resolution message according to the identifier information of the UE carried in the uplink message.
  • the generating unit 205 includes: a first generating unit, configured to use the identifier information of the UE to mask the contention resolution message; and/or a second generating unit, configured to write the identifier information of the UE Enter the competition to resolve the message.
  • the second sending unit 206 is configured to send the contention resolution message to the UE by using the second downlink assignment information that is obtained in advance, where the second downlink assignment information is used by the contention resolution message. Downstream assignment information.
  • the random access response message sent by the second sending unit 206 further carries the time when the UE receives the contention resolution message; or, the UE receives the contention resolution message.
  • the time is carried in a broadcast message sent by the base station, in a dedicated message sent by the base station, or in a communication protocol.
  • the contention resolution message may further include: third downlink assignment information used by the base station to send data to the UE, or used by the base station to receive data sent by the UE.
  • the second uplink authorization information may further include: third downlink assignment information used by the base station to send data to the UE, or used by the base station to receive data sent by the UE.
  • the third downlink assignment information is used to: when the base station sends data to the UE at least twice, the contention resolution message further includes: an interval time and a usage frequency of the third downlink assignment information. .
  • the second uplink grant information is used to control the base station to receive the data sent by the UE at least twice, and the contention resolution message further includes: an interval time and a used number of times used by the second uplink grant information.
  • the base station further includes:
  • a second acquiring unit configured to acquire a mapping relationship between the first uplink grant information and the preamble, where the mapping relationship between the first uplink grant information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or The dedicated message sent by the base station;
  • a third acquiring unit configured to acquire, according to the mapping relationship between the first uplink grant information and the preamble acquired by the second acquiring unit, the first uplink grant information corresponding to the preamble received by the first receiving unit .
  • the base station further includes:
  • a fourth acquiring unit configured to acquire first uplink grant information carried in the random access response message sent by the first sending unit.
  • the base station further includes:
  • a fifth acquiring unit configured to acquire a mapping relationship between the second downlink assignment information and the preamble, where the mapping relationship between the second downlink assignment information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or The dedicated message sent by the base station;
  • a sixth obtaining unit configured to acquire, according to the second downlink assignment information, the second downlink assignment information
  • the mapping relationship of the guide code acquires second downlink assignment information corresponding to the preamble received by the first receiving unit.
  • the base station further includes: a seventh acquiring unit, configured to acquire second downlink assignment information carried in the random access response message sent by the first sending unit.
  • FIG. 10 Another embodiment of the present invention further discloses a user equipment UE, as shown in FIG. 10, including: a first sending unit 301, configured to send a preamble to a base station;
  • the first obtaining unit 302 is configured to acquire, according to the mapping relationship between the first downlink assignment information and the preamble obtained in advance, the first downlink assignment information corresponding to the preamble sent by the first sending unit, where The first downlink assignment information is the downlink assignment information used by the random access response message.
  • the mapping relationship between the first downlink assignment information and the preamble is carried in the communication protocol. And in a broadcast message sent by the base station or in a dedicated message sent by the base station.
  • the first receiving unit 303 is configured to receive, according to the first downlink assignment information, a random access response message sent by the base station.
  • the first acquiring unit 302 obtains the first downlink assignment information by using the mapping relationship between the first downlink assignment information and the preamble, where the first downlink assignment information is randomly connected.
  • the downlink assignment information used by the in response message does not need to repeat the transmission scheduling signaling of the random access response message by using the PDCCH channel, and solves the problem that the existing random access method repeatedly transmits by using the PDCCH channel. The problem of channel resource waste and access delay caused by scheduling signaling of random access response messages.
  • FIG. 11 Another embodiment of the present invention further discloses a user equipment UE, as shown in FIG. 11, comprising: a first sending unit 401, configured to send a preamble to a base station;
  • the first obtaining unit 402 is configured to acquire first downlink assignment information corresponding to the preamble sent by the first sending unit according to the mapping relationship between the first downlink assignment information and the preamble obtained in advance;
  • the first downlink assignment information is downlink assignment information used by the random access response message, and the first receiving unit 403 is configured to receive, according to the first downlink assignment information, a random access response sent by the base station. Message.
  • the second sending unit 404 is configured to send an uplink message to the base station by using the first uplink authorization information that is obtained in advance, where the uplink message carries the identifier information of the UE, where the first uplink authorization information is Uplink authorization information used by the uplink message;
  • the second receiving unit 405 is configured to receive, by using the second downlink assignment information that is obtained in advance, the contention resolution message sent by the base station, where the second downlink assignment information is downlink assignment information used by the contention resolution message;
  • the competition result generating unit 406 is configured to obtain a competition resolution result according to the competition resolution message.
  • the competition result generating unit 406 includes:
  • a de-masking unit configured to de-mask the contention resolution message to obtain identification information of the UE
  • a first contention result generation sub-unit configured to obtain a contention resolution result according to the identifier information of the UE.
  • the competition result generating unit 406 includes: a ninth obtaining unit, configured to acquire identification information of the UE carried in the contention resolution message; a subunit, configured to obtain a contention resolution result according to the identifier information of the UE.
  • the contention resolution message received by the UE further includes: the third downlink assignment information used by the UE to receive data sent by the base station, and/or the UE The second uplink grant information used by the data sent by the base station.
  • the contention resolution message is used to control, when the UE receives the data sent by the base station, the contention resolution message further includes: an interval time and a usage frequency of the third downlink assignment information. .
  • the second uplink grant information is used to control the UE to send data to the base station at least twice, and the contention resolution message further includes: a time and a usage count of the second uplink grant information usage interval.
  • the UE further includes:
  • a second acquiring unit configured to acquire a mapping relationship between the first uplink grant information and the preamble, where the mapping relationship between the first uplink grant information and the preamble is carried in a communication protocol, and the base station sends In a broadcast message or in a dedicated message sent by the base station;
  • a third acquiring unit configured to obtain, according to the mapping relationship between the first uplink grant information and the preamble, the first uplink grant information corresponding to the preamble sent by the first sending unit.
  • the UE further includes: a fourth obtaining unit, configured to acquire first uplink grant information carried in the random access response message received by the first receiving unit.
  • the UE further includes:
  • a fifth acquiring unit configured to acquire a mapping relationship between the second downlink assignment information and the preamble, where the mapping relationship between the second downlink assignment information and the preamble is carried in a communication protocol, in a broadcast message sent by the base station, or The dedicated message sent by the base station;
  • a sixth acquiring unit configured to obtain, according to the mapping relationship between the second downlink assignment information and the preamble, second downlink assignment information corresponding to the preamble sent by the first sending unit;
  • the UE further includes:
  • a seventh acquiring unit configured to acquire second downlink assignment information carried in the random access response message received by the first receiving unit.
  • the UE further includes:
  • An eighth acquiring unit configured to acquire a time when the first receiving unit receives the contention resolution message, where the first receiving unit receives the content of the contention resolution message and carries the random connection sent by the base station In the response message, in the communication protocol, in the broadcast message sent by the base station, or in the dedicated message sent by the base station.
  • a portion of the embodiments of the present invention that contributes to the prior art or a portion of the technical solution may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a
  • the computing device (which may be a personal computer, server, mobile computing device, or network device, etc.) performs all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like.
  • the media of the sequence code includes: a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like.

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Abstract

本发明实施例公开了一种随机接入方法和装置,其中,本实施例公开的随机接入方法中,通过第一下行指派信息和前导码的映射关系的方式,得到第一下行指派信息,其中,所述第一下行指派信息为随机接入响应消息所使用的下行指派信息,不需要将采用所述PDCCH信道重复随机接入响应消息的传输调度信令,解决了现有的随机接入方法中由于采用所述PDCCH信道重复传输随机接入响应消息的调度信令而导致的信道资源浪费和接入延时的问题。

Description

随机接入方法及装置 本申请要求于 2013年 12月 31日提交中国专利局、 申请号 201310753912.1 , 发明名称为 "随机接入方法及装置"的中国专利申请的优先权, 其全部内容通 过引用结合在本申请中。 技术领域 本发明涉及通信技术领域, 更具体地说, 涉及一种随机接入方法及装置。 背景技术
用户设备 ( user equipment, 简称为 UE )随机接入无线通信网络的方法可 以分为基于非竟争的随机接入和基于竟争的随机接入两种。
在基于竟争的随机接入过程中, 基站发送随机接入响应消息给所述 UE, 所述 UE根据所述随机接入响应消息向所述基站发送上行消息之前, 所述基站 还需要通过 PDCCH ( Physical Downlink Control Channel , 物理下行控制信 道 )信道发送随机接入响应消息的调度信令给所述 UE, 其中, 所述随机接入 响应消息的调度信令中包含所述 UE接收所述随机接入响应消息所使用的物理 资源、 调制编码方式, 冗余版本, HARQ ( Hybrid Automatic Repeat Request, 混合自动重传请求 )进程号等信息。
并且, 在覆盖增强场景下, UE和基站之间通信所使用的多个信道需要增 强, 其中就包括 PDCCH信道; 并且, 典型的增强方法是将所述信道上的内容 重复传输。
因此,在上述随机接入过程中, 所述随机接入响应消息的调度信令在所述 PDCCH信道上是重复传输, 这样就会导致信道资源浪费和接入延时。 发明内容
有鉴于此, 本发明实施例提供一种随机接入方法, 以解决现有的随机接入 方法中由于釆用所述 PDCCH信道重复随机接入响应消息的传输调度信令而导 致的信道资源浪费和接入延时的问题。 为了实现上述目的, 现提出的方案如下:
本发明实施例的第一方面提供一种随机接入方法, 包括:
基站接收用户设备 UE发送的前导码;
所述基站根据预先得到的第一下行指派信息和前导码的映射关系 ,获取与 所述基站接收的前导码相对应的第一下行指派信息; 其中, 所述第一下行指派 信息为随机接入响应消息所使用的下行指派信息;
所述基站根据所述第一下行指派信息向所述 UE发送随机接入响应消息。 结合本发明实施例的第一方面,在本发明实施例的第一方面的第一种实施 方式中, 所述基站向所述 UE发送所述随机接入响应消息之后, 还包括:
所述基站釆用预先得到的第一上行授权信息接收所述 UE发送的上行消 息; 其中, 所述上行消息中携带有所述 UE的标识信息, 所述第一上行授权信 息为所述上行消息所使用的上行授权信息;
所述基站根据所述上行消息中携带的所述 UE的标识信息,生成竟争解决 消息;
所述基站釆用预先得到的第二下行指派信息向所述 UE发送所述竟争解决 消息, 其中, 所述第二下行指派信息为竟争解决消息所使用的下行指派信息。
结合本发明实施例的第一方面或者本发明实施例的第一方面的第一种实 施方式,在本发明实施例的第一方面的第二种实施方式中, 所述第一下行指派 信息和前导码的映射关系承载在通信协议中、所述基站发送的广播消息中或所 述基站发送的专用消息中。
结合本发明实施例的第一方面的第一种实施方式 ,在本发明实施例的第一 方面的第三种实施方式中,所述基站预先得到所述第一上行授权信息的方式包 括:
所述基站获取第一上行授权信息和前导码的映射关系;
所述基站根据所述第一上行授权信息和前导码的映射关系 ,获取与所述基 站接收的前导码相对应的第一上行授权信息;
其中, 所述第一上行授权信息和前导码的映射关系承载在通信协议中、所 述基站发送的广播消息中或所述基站发送的专用消息中。
结合本发明实施例的第一方面的第一种实施方式 ,在本发明实施例的第一 方面的第四种实施方式中,所述基站预先得到所述第一上行授权信息的方式包 括:
所述基站获取所述基站发送的随机接入响应消息中携带的第一上行授权 信息。
结合本发明实施例的第一方面的第一种实施方式 ,在本发明实施例的第一 方面的第五种实施方式中,所述基站预先得到所述第二下行指派信息的方式包 括:
所述基站获取第二下行指派信息和前导码的映射关系;
所述基站根据所述第二下行指派信息和前导码的映射关系 ,获取与所述基 站接收的前导码相对应的第二下行指派信息;
其中, 所述第二下行指派信息和前导码的映射关系承载在通信协议中、所 述基站发送的广播消息中或所述基站发送的专用消息中。
结合本发明实施例的第一方面的第一种实施方式 ,在本发明实施例的第一 方面的第六种实施方式中,所述基站预先得到所述第二下行指派信息的方式包 括:
所述基站获取所述基站发送的随机接入响应消息中携带的第二下行指派 信息。
结合本发明实施例的第一方面的第一种实施方式 ,在本发明实施例的第一 方面的第七种实施方式中, 所述基站发送的所述随机接入响应消息中、所述基 站发送的广播消息中、所述基站发送的专用消息中或者, 通信协议中还包括有 所述 UE接收所述竟争解决消息的时间。
结合本发明实施例的第一方面的第一种实施方式 ,在本发明实施例的第一 方面的第八种实施方式中,所述基站根据所述上行消息携带的所述 UE的标识 信息生成竟争解决消息包括:
所述基站釆用所述 UE的标识信息加掩所述竟争解决消息;
所述基站将所述 UE的标识信息写入所述竟争解决消息。
结合本发明实施例的第一方面的第一种实施方式 ,在本发明实施例的第一 方面的第九种实施方式中, 所述竟争解决消息中还包括:
所述基站向所述 UE发送数据所使用的第三下行指派信息, 或者, 所述基 站接收所述 UE发送的数据所使用的第二上行授权信息。 本发明实施例的第一方面的第九种实施方式,在本发明实施例的第一方面 的第十种实施方式中,所述第三下行指派信息用于至少两次控制所述基站向所 述 UE发送数据时, 所述竟争解决消息中还包括: 所述第三下行指派信息使用 的间隔时间。
本发明实施例的第一方面的第九种实施方式,在本发明实施例的第一方面 的第十一种实施方式中,所述第二上行授权信息用于至少两次控制所述基站接 收所述 UE发送的数据时, 所述竟争解决消息中还包括: 所述第二上行授权信 息使用的间隔时间。
本发明实施例的第二方面提供一种随机接入方法, 包括: 用户设备 UE向 基站发送前导码;
所述 UE根据预先得到的第一下行指派信息和前导码的映射关系,获取与 所述 UE发送的前导码相对应的第一下行指派信息; 其中, 所述第一下行指派 信息为随机接入响应消息所使用的下行指派信息;
所述 UE根据所述第一下行指派信息接收所述基站发送的随机接入响应消 息。
结合本发明实施例的第二方面,在本发明实施例的第二方面的第一种实施 方式中, 所述 UE接收所述基站发送的随机接入响应消息之后, 还包括:
所述 UE釆用预先得到的第一上行授权信息向所述基站发送上行消息,所 述上行消息中携带有所述 UE的标识信息, 所述第一上行授权信息为所述上行 消息所使用的上行授权信息;
所述 UE釆用预先得到的第二下行指派信息接收所述基站发送的竟争解决 消息; 其中, 所述第二下行指派信息为竟争解决消息所使用的下行指派信息; 所述 UE根据所述竟争解决消息得到竟争解决结果。
结合本发明实施例的第二方面或本发明实施例的第二方面的第一种实施 方式,在本发明实施例的第二方面的第二种实施方式中, 所述第一下行指派信 息和前导码的映射关系承载在通信协议中、所述基站发送的广播消息中或所述 基站发送的专用消息中。
结合本发明实施例的第二方面的第一种实施方式 ,在本发明实施例的第二 方面的第三种实施方式中, 所述 UE预先得到第一上行授权信息的方式包括: 所述 UE获取第一上行授权信息和前导码的映射关系; 所述 UE根据所述第一上行授权信息和前导码的映射关系, 获取与所述 UE发送的前导码相对应的第一上行授权信息;
其中, 所述第一上行授权信息和前导码的映射关系承载在通信协议中、所 述基站发送的广播消息中或所述基站发送的专用消息中。
结合本发明实施例的第二方面的第一种实施方式 ,在本发明实施例的第二 方面的第四种实施方式中,所述 UE预先得到所述第一上行授权信息的方式包 括:
所述 UE获取所述 UE接收的随机接入响应消息中携带的第一上行授权信 息。
结合本发明实施例的第二方面的第一种实施方式,在本发明实施例的第二 方面的第五种实施方式中,所述 UE预先得到所述第二下行指派信息的方式包 括:
所述 UE获取第二下行指派信息和前导码的映射关系;
所述 UE根据所述第二下行指派信息和前导码的映射关系, 获取与所述 UE发送的前导码相对应的第二下行指派信息;
其中, 所述第二下行指派信息和前导码的映射关系承载在通信协议中、所 述基站发送的广播消息中或所述基站发送的专用消息中。
结合本发明实施例的第二方面的第一种实施方式 ,在本发明实施例的第二 方面的第六种实施方式中,所述 UE预先得到所述第二下行指派信息的方式包 括:
所述 UE获取所述 UE接收的随机接入响应消息中携带的第二下行指派信 息。
结合本发明实施例的第二方面的第一种实施方式 ,在本发明实施例的第二 方面的第七种实施方式中, 所述 UE向所述基站发送所述上行消息之后, 还包 括:
所述 UE获取所述 UE接收所述竟争解决消息的时间; 其中, 所述 UE接 收所述竟争解决消息的时间承载在所述基站发送的随机接入响应消息中,通信 协议中、 所述基站发送的广播消息中、 或者, 所述基站发送的专用消息中。
结合本发明实施例的第二方面的第一种实施方式 ,在本发明实施例的第二 方面的第八种实施方式中,述 UE根据所述竟争解决消息得到竟争解决结果包 括:
所述 UE解掩所述竟争解决消息得到所述 UE的标识信息;
所述 UE根据所述 UE的标识信息得到竟争解决结果。
结合本发明实施例的第二方面的第一种实施方式 ,在本发明实施例的第二 方面的第九种实施方式中,述 UE根据所述竟争解决消息得到竟争解决结果包 括:
所述 UE获取所述竟争解决消息中携带的所述 UE的标识信息;
所述 UE根据所述 UE的标识信息得到竟争解决结果。
结合本发明实施例的第二方面的第一种实施方式 ,在本发明实施例的第二 方面的第十种实施方式中, 所述 UE接收的所述竟争解决消息中还包括:
所述 UE接收所述基站发送的数据所使用的第三下行指派信息或所述 UE 向所述基站发送的数据所使用的第二上行授权信息。
结合本发明实施例的第二方面的第十种实施方式 ,在本发明实施例的第二 方面的第十一种实施方式中, 所述第三下行指派信息用于至少两次控制所述 UE接收所述基站发送的数据时, 所述竟争解决消息还包括: 所述第三下行指 派信息使用的间隔时间。
结合本发明实施例的第二方面的第十种实施方式,本发明实施例的第二方 面的第十二种实施方式中, 所述第二上行授权信息用于至少两次控制所述 UE 向所述基站所述发送数据时, 所述竟争解决消息还包括: 所述第二上行授权信 息使用间隔的时间。
结合本发明实施例的第一方面, 本发明实施例的第三方面提供一种基站 , 包括:
第一接收单元, 用于接收用户设备 UE发送的前导码;
第一获取单元,用于根据预先得到的第一下行指派信息和前导码的映射关 系,获取与所述第一接收单元接收的前导码相对应的第一下行指派信息;其中, 所述第一下行指派信息为随机接入响应消息所使用的下行指派信息;
第一发送单元,用于根据所述第一下行指派信息向所述 UE发送随机接入 响应消息。
结合本发明实施例的第三方面,在本发明实施例的第三方面的第一种实施 方式中, 所述基站还包括: 第二接收单元,用于釆用预先得到的第一上行授权信息接收所述 UE发送 的上行消息, 其中, 所述上行消息中携带有所述 UE的标识信息, 所述第一上 行授权信息为所述上行消息所使用的上行授权信息;
生成单元, 用于根据所述上行消息中携带的所述 UE的标识信息, 生成竟 争解决消息;
第二发送单元, 用于釆用预先得到的第二下行指派信息向所述 UE发送所 述竟争解决消息, 其中, 所述第二下行指派信息为竟争解决消息所使用的下行 指派信息。
结合本发明实施例的第三方面或者本发明实施例的第三方面的第一种实 施方式,在本发明实施例的第三方面的第二种实施方式中, 所述第一下行指派 信息和前导码的映射关系承载在通信协议中、所述基站发送的广播消息中或所 述基站发送的专用消息中。
结合本发明实施例的第三方面的第一种实施方式 ,在本发明实施例的第三 方面的第三种实施方式中, 还包括:
第二获取单元, 用于获取第一上行授权信息和前导码的映射关系, 其中, 所述第一上行授权信息和前导码的映射关系承载在通信协议中、所述基站发送 的广播消息中或所述基站发送的专用消息中;
第三获取单元,用于根据所述第二获取单元获取的所述第一上行授权信息 和前导码的映射关系,获取与所述第一接收单元接收的前导码相对应的第一上 行授权信息。
结合本发明实施例的第三方面的第一种实施方式 ,在本发明实施例的第三 方面的第四种实施方式中, 还包括:
第四获取单元,用于获取所述第一发送单元发送的随机接入响应消息中携 带的第一上行授权信息。
结合本发明实施例的第三方面的第一种实施方式 ,在本发明实施例的第三 方面的第五种实施方式中, 还包括:
第五获取单元, 用于获取第二下行指派信息和前导码的映射关系, 其中, 所述第二下行指派信息和前导码的映射关系承载在通信协议中、所述基站发送 的广播消息中或所述基站发送的专用消息中; 第六获取单元,用于根据所述第五获取单元获取的第二下行指派信息和前 导码的映射关系,获取与所述第一接收单元接收的前导码相对应的第二下行指 派信息。
结合本发明实施例的第三方面的第一种实施方式 ,在本发明实施例的第三 方面的第六种实施方式中, 还包括:
第七获取单元,用于获取所述第一发送单元发送的随机接入响应消息中携 带的第二下行指派信息。
结合本发明实施例的第三方面的第一种实施方式 ,在本发明实施例的第三 方面的第七种实施方式中, 所述基站发送的所述随机接入响应消息中、所述基 站发送的广播消息中、所述基站发送的专用消息中或者, 通信协议中还包括有 所述 UE接收所述竟争解决消息的时间。
结合本发明实施例的第三方面的第一种实施方式 ,在本发明实施例的第三 方面的第八种实施方式中, 所述生成单元包括:
第一生成单元, 用于釆用所述 UE的标识信息加掩所述竟争解决消息; 第二生成单元, 用于将所述 UE的标识信息写入所述竟争解决消息。
结合本发明实施例的第三方面的第一种实施方式 ,在本发明实施例的第三 方面的第九种实施方式中, 所述竟争解决消息还包括:
所述基站向所述 UE发送数据所使用的第三下行指派信息, 或者, 所述基 站接收所述 UE发送的数据所使用的第二上行授权信息。
结合本发明实施例的第三方面的第九种实施方式 ,在本发明实施例的第三 方面的第十种实施方式中,所述第三下行指派信息用于至少两次控制所述基站 向所述 UE发送数据时, 所述竟争解决消息还包括: 所述第三下行指派信息使 用的间隔时间。
结合本发明实施例的第三方面的第九种实施方式 ,在本发明实施例的第三 方面的第十一种实施方式中,所述第二上行授权信息用于至少两次控制所述基 站接收所述 UE发送的数据时, 所述竟争解决消息还包括: 所述第二上行授权 信息使用的间隔时间。
结合本发明实施例的第二方面,本发明实施例的第四方面提供了一种用户 设备 UE, 包括:
第一发送单元, 用于向基站发送前导码; 第一获取单元,用于根据预先得到的第一下行指派信息和前导码的映射关 系,获取与所述第一发送单元发送的前导码相对应的第一下行指派信息;其中, 所述第一下行指派信息为随机接入响应消息所使用的下行指派信息;
第一接收单元,用于根据所述第一下行指派信息接收所述基站发送的随机 接入响应消息。
结合本发明实施例的第四方面,在本发明实施例的第四方面的第一种实施 方式中, 还包括:
第二发送单元,用于釆用预先得到的第一上行授权信息向所述基站发送上 行消息, 所述上行消息中携带有所述 UE的标识信息, 所述第一上行授权信息 为所述上行消息所使用的上行授权信息;
第二接收单元,用于釆用预先得到的第二下行指派信息接收所述基站发送 的竟争解决消息; 其中, 所述第二下行指派信息为竟争解决消息所使用的下行 指派信息;
竟争结果生成单元, 用于根据所述竟争解决消息得到竟争解决结果。
结合本发明实施例的第四方面或者本发明实施例的第四方面的第一种实 施方式,在本发明实施例的第四方面的第二种实施方式中, 所述第一下行指派 信息和前导码的映射关系承载在通信协议中、所述基站发送的广播消息中或所 述基站发送的专用消息中。
结合本发明实施例的第四方面的第一种实施方式,在本发明实施例的第四 方面的第三种实施方式中, 还包括:
第二获取单元, 用于获取第一上行授权信息和前导码的映射关系, 其中, 所述第一上行授权信息和前导码的映射关系承载在通信协议中、所述基站发送 的广播消息中或所述基站发送的专用消息中;
第三获取单元, 用于根据所述第一上行授权信息和前导码的映射关系, 获 取与所述第一发送单元发送的前导码相对应的第一上行授权信息。
结合本发明实施例的第四方面的第一种实施方式,在本发明实施例的第四 方面的第四种实施方式中, 还包括:
第四获取单元,用于获取所述第一接收单元接收的随机接入响应消息中携 带的第一上行授权信息。
结合本发明实施例的第四方面的第一种实施方式,在本发明实施例的第四 方面的第五种实施方式中, 还包括:
第五获取单元, 用于获取第二下行指派信息和前导码的映射关系, 其中, 所述第二下行指派信息和前导码的映射关系承载在通信协议中、所述基站发送 的广播消息中或所述基站发送的专用消息中;
第六获取单元, 用于根据所述第二下行指派信息和前导码的映射关系, 获 取与所述第一发送单元发送的前导码相对应的第二下行指派信息。
结合本发明实施例的第四方面的第一种实施方式,在本发明实施例的第四 方面的第六种实施方式中, 还包括:
第七获取单元,用于获取所述第一接收单元接收的随机接入响应消息中携 带的第二下行指派信息。
结合本发明实施例的第四方面的第一种实施方式,在本发明实施例的第四 方面的第七种实施方式中, 还包括:
第八获取单元, 用于获取所述第一接收单元接收所述竟争解决消息的时 间; 其中, 所述第一接收单元接收所述竟争解决消息的时间承载在所述基站发 送的随机接入响应消息中, 通信协议中、 所述基站发送的广播消息中、 或者, 所述基站发送的专用消息中。
结合本发明实施例的第四方面的第一种实施方式,在本发明实施例的第四 方面的第八种实施方式中, 所述竟争结果生成单元包括:
解掩单元, 用于解掩所述竟争解决消息得到所述 UE的标识信息; 第一竟争结果生成子单元, 用于根据所述 UE的标识信息得到竟争解决结 果。
结合本发明实施例的第四方面的第一种实施方式,在本发明实施例的第四 方面的第九种实施方式中, 所述竟争结果生成单元包括:
第九获取单元,用于获取所述竟争解决消息中携带的所述 UE的标识信息; 第二竟争结果生成子单元, 用于根据所述 UE的标识信息得到竟争解决结 果。
结合本发明实施例的第四方面的第一种实施方式,在本发明实施例的第四 方面的第十种实施方式中, 所述 UE接收的所述竟争解决消息还包括:
所述 UE接收所述基站发送的数据所使用的第三下行指派信息或所述 UE 向所述基站发送的数据所使用的第二上行授权信息。 结合本发明实施例的第四方面的第十种实施方式,在本发明实施例的第四 方面的第十一种实施方式中, 所述第三下行指派信息用于至少两次控制所述
UE接收所述基站发送的数据时, 所述竟争解决消息还包括: 所述第三下行指 派信息使用的间隔时间。
结合本发明实施例的第四方面的第十种实施方式,在本发明实施例的第四 方面的第十二种实施方式中, 所述第二上行授权信息用于至少两次控制所述 UE向所述基站所述发送数据时, 所述竟争解决消息还包括: 所述第二上行授 权信息使用间隔的时间。
从上述的技术方案可以看出, 本发明实施例公开的随机接入方法中,通过 第一下行指派信息和前导码的映射关系的方式,得到第一下行指派信息,其中, 所述第一下行指派信息为随机接入响应消息所使用的下行指派信息,不需要将 釆用所述 PDCCH信道重复随机接入响应消息的传输调度信令,解决了现有的 随机接入方法中由于釆用所述 PDCCH信道重复传输随机接入响应消息的调度 信令而导致的信道资源浪费和接入延时的问题。
附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施 例或现有技术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为通信系统的结构示意图;
图 2为本发明实施例公开的随机接入方法的时序图;
图 3为本发明实施例公开的随机接入方法的流程图;
图 4为本发明另一实施例公开的随机接入方法的时序图;
图 5为本发明另一实施例公开的随机接入方法的流程图;
图 6为本发明另一实施例公开的随机接入方法的时序图;
图 7为本发明另一实施例公开的随机接入方法的时序图;
图 8为本发明实施例公开的基站的结构示意图;
图 9为本发明另一实施例公开的基站的结构示意图; 图 10为本发明实施例公开的用户设备的结构示意图;
图 11为本发明另一实施例公开的用户设备的结构示意图。 具体实施方式
本发明实施例提供的技术方案可以应用于各种无线通信网络, 例如: 全球 移动通信 ( global system for mobile communication, 简称为 GSM ) 系统、 码分 多址 (code division multiple access, 简称为 CDMA ) 系统、 宽带码分多址 ( wideband code division multiple access, 简称为 WCDMA )系统、通用移动通 信 ( universal mobile telecommunication system , 简称为 UMTS ) 系统、 通用分 组无线业务( general packet radio service, 简称为 GPRS )系统、长期演进( long term evolution, 简称为 LTE ) 系统、 先进的长期演进 ( long term evolution advanced, 简称为 LTE-A )系统、全球互联 波接入( worldwide interoperability for microwave access, 简称为 WiMAX ) 系统等。 术语 "网络" 和 "系统" 可 以相互替换。
在本发明实施例中, 基站(base station, 简称为 BS ) 可以是与用户设备
( user equipment , 简称为 UE )或其它通信站点如中继站点,进行通信的设备, 基站可以提供特定物理区域的通信覆盖。例如,基站具体可以是 GSM或 CDMA 中的基站收发台 ( Base Transceiver Station, 简称为 BTS )或基站控制器( Base Station Controller, 简称为 BSC ); 也可以是 UMTS中的节点 B ( Node B , 简称 为 NB )或者 UMTS中的无线网络控制器( Radio Network Controller, 简称为 RNC ); 还可以是 LTE中的演进型基站( Evolutional Node B, 简称为 E B或 eNodeB );或者,也可以是无线通信网络中的提供接入服务的其他接入网设备, 本发明并不限定。
在本发明实施例中, UE可以分布于整个无线网络中, 每个 UE可以是静 态的或移动的。 UE可以称为终端 (terminal ), 移动台 ( mobile station ), 用户 单元 ( subscriber unit ),站台( station )等。 UE可以为蜂窝电话( cellular phone ), 个人数字助理 (personal digital assistant, 简称为 PDA ), 无线调制解调器 ( modem ) , 无线通信设备, 手持设备 (handheld ) , 膝上型电脑 (laptop computer ), 无绳电话 ( cordless phone ), 无线本地环路 ( wireless local loop, 简称为 WLL ) 台等。 当 UE应用于 M2M方式通信时, UE可以称为 M2M终 端, 具体可以是支持 M2M通信的智能电表、 智能家电等。
图 1为本发明实施例提供的一种通信系统, 包括 UE 101 , 以及为 UE 101 提供接入服务的基站 102。 其中, UE 101用于向基站 102发送前导码; 基站 102用于在根据预先得到的第一下行指派信息和前导码的映射关系, 获取与所 述基站接收的前导码相对应的第一下行指派信息之后,根据所述第一下行指派 信息向所述 UE发送随机接入响应消息。
为解决现有的随即接入方法中由于釆用所述 PDCCH信道重复传输调度信 令而导致的资源浪费和接入延时的问题,该通信系统釆用本发明实施例提供的 一种随机接入方法, 结合图 2和图 3 , 该随机接入方法包括:
5101、 基站接收用户设备 UE发送的前导码;
其中, 本步骤中, 所述 UE发送的前导码可以是所述基站为所述 UE配置 专用的前导码, 此时, 本实施例公开的随机接入方法为基于非竟争的随机接入 方法。
并且, 在所述基站为所述 UE 配置专用的前导码时, 所述基站还为所述
UE配置所述前导码的 PRACH ( Physical Random Access Channel, 物理随机接 入信道)资源。 具体的, 所述基站为所述 UE配置专用的前导码及所述前导码 的 PRACH 资源的方式可以是通过在 PDCCH ( Physical Downlink Control hannel,物理下行控制信道)上传输的命令进行配置,也可以是通过 RRC( Radio Resource Control , 无线资源控制) 消息配置。
当然, 本步骤中, 所述 UE发送的前导码也可以是所述 UE随机选择的前 导码, 并且, 所述 UE在可用的所述 PRACH资源上发送前导码给基站。
5102、 所述基站根据预先得到的第一下行指派信息和前导码的映射关系 , 获取与所述基站接收的前导码相对应的第一下行指派信息;
其中, 所述第一下行指派信息为随机接入响应消息所使用的下行指派信 息;
具体的, 所述基站接收到所述前导码之后, 需要向发送所述前导码的 UE 发送随机接入响应消息, 并且, 在发送所述随机接入响应消息之前, 需要得到 随机接入响应消息所使用的下行指派信息, 即所述第一下行指派信息。
其中, 所述第一下行指派信息中包括: 所述随机接入响应消息所使用的物 理资源, 调制编码方式, 冗余版本以及 HARQ ( Hybrid Automatic Repeat Request, 混合自动重传请求)进程号等信息。
本实施例中, 所述第一下行指派信息和前导码有映射关系,通过所述映射 关系,所述基站可以得到与所述基站接收的前导码的第一下行指派信息,其中, 所述第一下行指派信息和前导码有映射关系举例为:
前导码 1 , 对应的第一下行指派信息中的物理资源为 PRB 0-6, 调制编码 方式为 QPSK, 1/3编码, 冗余版本为 1 , HARQ进程号为 1 ;
前导码 2, 对应的第一下行指派信息中的物理资源为 PRB 7 - 1 1 , 调制 编码方式为 QPSK, 1/3编码, 冗余版本为 1 , HARQ进程号为 2 。
优选地,在本发明的其他实施例中, 所述基站预先得到的第一下行指派信 息和前导码的映射关系的方式包括:
所述基站获取通信协议中固有、所述基站发送的广播消息携带有或所述基 站发送给所述 UE的专用消息中携带有的所述第一下行指派信息和前导码的映 射关系。
S103、所述基站根据所述第一下行指派信息向所述 UE发送随机接入响应 消息。
本发明实施例公开的随机接入方法中,通过第一下行指派信息和前导码的 映射关系的方式, 得到第一下行指派信息, 其中, 所述第一下行指派信息为随 机接入响应消息所使用的下行指派信息, 不需要将釆用所述 PDCCH信道重复 随机接入响应消息的传输调度信令,解决了现有的随机接入方法中由于釆用所 述 PDCCH信道重复传输随机接入响应消息的调度信令而导致的信道资源浪费 和接入延时的问题。
此处需要说明的是,本发明实施例提供的通过将随机接入响应消息所使用 的下行指派信息和前导码之间设置映射关系,通过所述映射关系, 所述基站和 所述 UE分别得到与所述前导码相应的随机接入响应消息所使用的下行指派信 息,是本技术领域人员在解决现有的应用于基于竟争的随机接入方法存在的问 题时所提出的方案。 然后, 本技术领域人员研究发现, 该方案还可以应用于基 于非竟争的随机接入方法,但是,将上述方案的过程应用于基于非竟争的随机 接入方法, 对于本技术领域人员来说也是需要付出创造性劳动的。 本发明另一实施例还公开了一种随机接入方法, 结合图 3和图 4, 包括:
5201、 基站接收用户设备 UE发送的前导码;
5202、 所述基站根据预先得到的第一下行指派信息和前导码的映射关系 , 获取与所述基站接收的前导码相对应的第一下行指派信息;
其中, 所述第一下行指派信息为随机接入响应消息所使用的下行指派信 息;
5203、所述基站根据所述第一下行指派信息向所述 UE发送随机接入响应 消息;
5204、所述基站釆用预先得到的第一上行授权信息接收所述 UE发送的上 行消息;
其中, 所述上行消息中携带有所述 UE的标识信息, 所述第一上行授权信 息为所述上行消息所使用的上行授权信息;
具体的, 所述基站向所述 UE发送所述随机接入响应消息后, 所述 UE向 所述基站返还上行消息, 并且, 所述基站接收所述 UE发送的上行消息之前, 需要得到上行消息所使用的上行授权信息, 即第一上行授权信息。
其中, 所述第一上行授权信息包括: 所述上行消息所使用的物理资源, 调 制编码方式, 冗余版本以及 HARQ ( Hybrid Automatic Repeat Request, 混合自 动重传请求)进程号等信息。
在本发明的其他实施例中,所述基站预先得到所述第一上行授权信息的方 式可以包括:
所述基站获取第一上行授权信息和前导码的映射关系;
其中, 所述第一上行授权信息和前导码的映射关系承载在通信协议中、所 述基站发送的广播消息中或所述基站发送的专用消息中;
所述基站根据所述第一上行授权信息和前导码的映射关系,获取与所述基 站接收的前导码相对应的第一上行授权信息;
另外,在本发明的另一其他实施例中, 所述基站预先得到的所述第一上行 授权信息还可以为:
所述基站获取所述基站发送的随机接入响应消息中携带的第一上行授权 信息。
具体的,所述基站发送的随即接入响应消息中预先携带有所述第一上行授 权信息, 所述基站通过所述随即接入响应消息可以得到第一上行授权信息。
5205、 所述基站根据所述上行消息中携带的所述 UE的标识信息, 生成竟 争解决消息;
优选地, 所述基站根据所述 UE的标识信息, 生成竟争解决消息的方式包 括以下两种, 具体的:
所述基站将所述 UE的标识信息写入所述竟争解决消息的方式生成竟争解 决消息;
以及,所述基站所述釆用所述 UE的标识信息加掩所述竟争解决消息的方 式生成竟争解决消息。
还可以是所述基站将所述 UE的标识信息写入所述竟争解决消息之后,再 釆用所述 UE的标识信息加掩。
5206、所述基站釆用预先得到的第二下行指派信息向所述 UE发送所述竟 争解决消息;
其中, 所述第二下行指派信息为竟争解决消息所使用的下行指派信息。 具体的, 所述基站生成竟争解决消息后, 釆用所述竟争解决消息所使用的 下行指派信息向所述 UE发送所述竟争解决消息, 因此, 所述基站需要得到所 述竟争解决消息所使用的下行指派信息, 即第二下行指派信息。
此处需要指出的是, 所述竟争解决消息所使用的下行指派信息包括: 所述 竟争解决消息所使用的物理资源,调制编码方式,冗余版本以及 HARQ( Hybrid Automatic Repeat Request, 混合自动重传请求)进程号等信息。
优选地,在本发明的其他实施例中, 所述基站预先得到所述第二下行指派 信息的方式包括:
所述基站获取第二下行指派信息和前导码的映射关系;
所述基站根据所述第二下行指派信息和前导码的映射关系 ,获取与所述基 站接收的前导码相对应的第二下行指派信息;
其中, 所述第二下行指派信息和前导码的映射关系承载在通信协议中、所 述基站发送的广播消息中或所述基站发送的专用消息中。
并且,在本发明的另一其他实施例中, 所述基站预先得到所述第二下行指 派信息的方式还可以是:所述基站获取所述基站发送的随机接入响应消息中携 带的第二下行指派信息。 此种情况下,所述基站发送的随机接入响应消息中携带有所述第二下行指 派信息, 所述基站通过读取所述随机接入响应消息中数据, 可以得到所述第二 下行指派信息。
优选地,在本发明的其他实施例中, 所述基站发送的随机接入响应消息中 还可以携带有所述 UE接收所述竟争解决消息的时间。 具体的, 所述随机接入 响应消息中携带的所述 UE接收所述竟争解决消息的时间可以是绝对时间,也 可以是所述竟争解决消息的接收时间和所述随机接入响应消息的接收时间的 间隔。
或者, 所述 UE接收所述竟争解决消息的时间可以承载在通信协议中、 所 述基站发送的广播消息中或所述基站发送的专用消息中。 同样, 所述 UE接收 所述竟争解决消息的时间可以是绝对时间,也可以是所述竟争解决消息的接收 时间和所述随机接入响应消息的接收时间的间隔。
优选地,在本发明的其他实施例中,所述基站发送的所述竟争解决消息中, 还可以携带有所述基站向所述 UE发送数据所使用的第三下行指派信息,其中 , 所述第三下行指派信息包括: 所述基站发送的数据所使用的物理资源,调制编 传请 进程号等信息。 一 这样, 随机接入过程完成后, 所述基站可以获取所述竟争解决消息中的第 三下行指派信息, 根据所述第三下行指派信息发送数据。
此处需要说明的是,若所述第三下行指派信息用于至少两次控制所述基站 向所述 UE发送数据时,所述竟争解决消息中还携带有所述第三下行指派信息 使用的间隔时间以及使用次数。
当然, 所述基站发送的所述竟争解决消息中,也可以携带有所述基站接收 所述 UE发送的数据所使用的第二上行授权信息, 其中, 所述第二上行授权 信息包括: 所述基站接收的数据所使用的物理资源, 调制编码方式, 冗余版本 以及 HARQ ( Hybrid Automatic Repeat Request, 混合自动重传请求)进程号等 信息。
同样, 随机接入过程完成后, 所述基站可以获取所述竟争解决消息中的第 二上行授权信息, 根据所述第二上行授权信息接收所述 UE发送的数据。
同样, 需要说明的是, 若所述第二上行授权信息用于至少两次控制所述基 站接收所述 UE发送的数据时, 所述竟争解决消息还还携带有: 所述第二上行 授权信息使用的间隔时间以及使用次数。 本发明另一实施例还公开了一种随机接入方法, 参见图 6, 包括:
S301、 用户设备 UE向基站发送前导码;
与对应图 2 的实施例中相同, 所述 UE发送的前导码为所述基站为所述 UE配置专用的前导码, 此时, 本实施例公开的随机接入方法为基于非竟争的 随机接入方法; 所述 UE发送的前导码还可以是所述 UE随机选择的前导码, 其中, 所述 UE在可用的所述 PRACH资源上发送前导码给基站。
当所述 UE发送的前导码为所述基站为所述 UE配置专用的前导码时, 在 所述基站为所述 UE配置专用的前导码时, 所述基站还为所述 UE配置所述前 导码的 PRACH ( Physical Random Access Channel, 物理随机接入信道)资源。 具体的, 所述基站为所述 UE配置专用的前导码及所述前导码的 PRACH资源 的方式可以是通过在 PDCCH ( Physical Downlink Control hannel , 物理下行控 制信道)上传输的命令进行配置,也可以是通过 RRC ( Radio Resource Control , 无线资源控制) 消息配置。
S302、 所述 UE根据预先得到的第一下行指派信息和前导码的映射关系, 获取与所述 UE发送的前导码相对应的第一下行指派信息;
其中, 所述第一下行指派信息为随机接入响应消息所使用的下行指派信 息;
具体的, 所述基站发送随机接入响应消息之后, 所述 UE要根据第一下行 指派信息接收所述随机接入响应消息, 此时, 就需要得到所述第一下行指派信 息。 其中, 需要指出的是, 所述第一下行指派信息中包括: 所述随机接入响应 消息所使用的物理资源, 调制编码方式, 冗余版本以及 HARQ ( Hybrid Automatic Repeat Request, 混合自动重传请求)进程号等信息。
在本发明的其他实施例中,公开了预先得到的第一下行指派信息和前导码 的映射关系的方式, 具体包括以下三种:
所述 UE获取所述通信协议中固有的所述第一下行指派信息和前导码的映 射关系的方式;
所述 UE获取所述基站发送的广播消息携带的所述第一下行指派信息和前 导码的映射关系的方式;
所述 UE获取所述基站发送的专用消息中携带有的所述第一下行指派信息 和前导码的映射关系的方式。
S303、所述 UE根据所述第一下行指派信息接收所述基站发送的随机接入 响应消息。
同样, 本发明实施例公开的随机接入方法中,通过第一下行指派信息和前 导码的映射关系的方式, 得到第一下行指派信息, 其中, 所述第一下行指派信 息为随机接入响应消息所使用的下行指派信息, 不需要将釆用所述 PDCCH信 道重复随机接入响应消息的传输调度信令,解决了现有的随机接入方法中由于 釆用所述 PDCCH信道重复传输随机接入响应消息的调度信令而导致的信道资 源浪费和接入延时的问题。
本发明另一实施例还公开了一种随机接入方法, 参见图 7, 包括:
5401、 用户设备 UE向基站发送前导码;
5402、 所述 UE根据预先得到的第一下行指派信息和前导码的映射关系, 获取与所述 UE发送的前导码相对应的第一下行指派信息;
其中, 所述第一下行指派信息为随机接入响应消息所使用的下行指派信 息;
S403、所述 UE根据所述第一下行指派信息接收所述基站发送的随机接入 响应消息;
S404、所述 UE釆用预先得到的第一上行授权信息向所述基站发送上行消 息;
其中, 所述上行消息中携带有所述 UE的标识信息, 所述第一上行授权信 息为所述上行消息所使用的上行授权信息;
具体的, 所述第一上行授权信息包括: 所述上行消息所使用的物理资源, 调制编码方式, 冗余版本以及 HARQ ( Hybrid Automatic Repeat Request, 混合 自动重传请求)进程号等信息。
所述 UE向所述基站发送上行消息,需要先确定所述上行消息所使用的上 行授权信息, 以下通过两个实施例进行具体说明。
第一实施例中, 所述 UE获取第一上行授权信息和前导码的映射关系; 所述 UE根据所述第一上行授权信息和前导码的映射关系, 获取与所述 UE发送的前导码相对应的第一上行授权信息;
具体的, 所述第一上行授权信息和前导码的映射关系承载在通信协议中、 所述基站发送的广播消息中或所述基站发送的专用消息中。
第二实施例中, 所述 UE获取所述 UE接收的随机接入响应消息中携带的 第一上行授权信息。
优选地, 在本发明的其他实施例中, 步骤 S404、 所述 UE向所述基站发 送所述上行消息之后, 还包括:
所述 UE获取所述 UE接收所述竟争解决消息的时间;
其中,所述 UE接收所述竟争解决消息的时间承载在所述基站发送的随机 接入响应消息中, 通信协议中、 所述基站发送的广播消息中、 或者, 所述基站 发送的专用消息中。
此时, 所述 UE只需要在 UE接收所述竟争解决消息的时间去接收, 可以 节省所述 UE的资源开销。
5405、所述 UE釆用预先得到的第二下行指派信息接收所述基站发送的竟 争解决消息;
其中, 所述第二下行指派信息为竟争解决消息所使用的下行指派信息; 具 体的, 所述第二下行指派信息包括: 所述竟争解决消息所使用的物理资源, 调 制编码方式, 冗余版本以及 HARQ ( Hybrid Automatic Repeat Request, 混合自 动重传请求)进程号等信息。
同样, 所述 UE接收所述基站发送的竟争解决消息之前, 也需要得知竟争 解决消息所使用的下行指派信息, 具体的实现形式可以包括:
所述 UE获取第二下行指派信息和前导码的映射关系;
所述 UE根据所述第二下行指派信息和前导码的映射关系, 获取与所述 UE发送的前导码相对应的第二下行指派信息;
其中, 所述第二下行指派信息和前导码的映射关系承载在通信协议中、所 述基站发送的广播消息中或所述基站发送的专用消息中。
还可以为: 所述 UE获取所述 UE接收的随机接入响应消息中携带的第二 下行指派信息。
5406、 所述 UE根据所述竟争解决消息得到竟争解决结果。
优选地, 在本发明的其他实施例中, 所述 UE根据所述竟争解决消息得到 竟争解决结果的方式, 具体包括:
所述 UE获取所述竟争解决消息中携带的所述 UE的标识信息;
所述 UE根据所述 UE的标识信息得到竟争解决结果。
在本发明的另一其他实施例中, 所述 UE根据所述竟争解决消息得到竟争 解决结果的方式还可以包括:
所述 UE解掩所述竟争解决消息得到所述 UE的标识信息;
所述 UE根据所述 UE的标识信息得到竟争解决结果。
本发明另一实施例还公开了一种随机接入方法,与上述实施例公开的不同 的是, 所述 UE接收的所述竟争解决消息中还携带有: 所述 UE接收所述基站 发送的数据所使用的第三下行指派信息;
其中, 所述第三下行指派信息包括: 所述基站发送的数据所使用的物理资 源, 调制编码方式, 冗余版本以及 HARQ ( Hybrid Automatic Repeat Request, 混合自动重传请求 )进程号等信息。
并且, 当所述第三下行指派信息用于至少两次控制所述 UE接收所述基站 发送的数据时, 所述竟争解决消息中还携带有: 所述第三下行指派信息使用的 间隔时间以及使用次数。
所述 UE接收的所述竟争解决消息中还携带有: 所述 UE向所述基站发送 的数据所使用的第二上行授权信息;
其中, 所述第二上行授权信息包括: 所述基站接收的数据所使用的物理资 源, 调制编码方式, 冗余版本以及 HARQ ( Hybrid Automatic Repeat Request, 混合自动重传请求 )进程号等信息。
并且,所述第二上行授权信息用于至少两次控制所述 UE向所述基站所述 发送数据时, 所述竟争解决消息中还携带有: 所述第二上行授权信息使用间隔 的时间以及使用次数。 本发明另一实施例还公开了一种基站, 参见图 8, 包括:
第一接收单元 101 , 用于接收用户设备 UE发送的前导码;
第一获取单元 102, 用于根据预先得到的第一下行指派信息和前导码的映 射关系, 获取与第一接收单元 101接收的前导码相对应的第一下行指派信息; 其中, 所述第一下行指派信息为随机接入响应消息所使用的下行指派信息; 第一发送单元 103 , 用于根据所述第一下行指派信息向所述 UE发送随机 接入响应消息。
本实施例公开的基站,第一获取单元 102通过第一下行指派信息和前导码 的映射关系的方式, 得到第一下行指派信息, 其中, 所述第一下行指派信息为 随机接入响应消息所使用的下行指派信息, 不需要将釆用所述 PDCCH信道重 复随机接入响应消息的传输调度信令,解决了现有的随机接入方法中由于釆用 所述 PDCCH信道重复传输随机接入响应消息的调度信令而导致的信道资源浪 费和接入延时的问题。
具体的,本实施例公开的基站的各个部件的工作过程请参见对应图 1的实 施例, 此处不再赘述。
本发明另一实施例还公开了一种基站, 参见图 9, 包括:
第一接收单元 201 , 用于接收用户设备 UE发送的前导码;
第一获取单元 202, 用于根据预先得到的第一下行指派信息和前导码的映 射关系, 获取与第一接收单元 201接收的前导码相对应的第一下行指派信息; 其中, 所述第一下行指派信息为随机接入响应消息所使用的下行指派信息; 优选地,在本发明的其他实施例中, 所述第一下行指派信息和前导码的映 射关系承载在通信协议中、所述基站发送的广播消息中或所述基站发送的专用 消息中。
第一发送单元 203 , 用于根据所述第一下行指派信息向所述 UE发送随机 接入响应消息;
第二接收单元 204, 用于釆用预先得到的第一上行授权信息接收所述 UE 发送的上行消息, 其中, 所述上行消息中携带有所述 UE的标识信息, 所述第 一上行授权信息为所述上行消息所使用的上行授权信息;
生成单元 205 , 用于根据所述上行消息中携带的所述 UE的标识信息, 生 成竟争解决消息;
优选地, 生成单元 205包括: 第一生成单元, 用于采用所述 UE的标识信 息加掩所述竟争解决消息; 和 /或, 第二生成单元, 用于将所述 UE的标识信息 写入所述竟争解决消息。
第二发送单元 206, 用于釆用预先得到的第二下行指派信息向所述 UE发 送所述竟争解决消息, 其中, 所述第二下行指派信息为竟争解决消息所使用的 下行指派信息。
优选地,所述第二发送单元 206发送的所述随机接入响应消息中还携带有 所述 UE接收所述竟争解决消息的时间; 又或者, 将所述 UE接收所述竟争解 决消息的时间承载在所述基站发送的广播消息中、 所述基站发送的专用消息 中, 或者, 通信协议中。
此处还需要说明的是, 所述竟争解决消息可以还包括: 所述基站向所述 UE发送数据所使用的第三下行指派信息, 或者, 所述基站接收所述 UE发送 的数据所使用的第二上行授权信息。
并且,所述第三下行指派信息用于至少两次控制所述基站向所述 UE发送 数据时, 所述竟争解决消息中还包括: 所述第三下行指派信息使用的间隔时间 和使用次数。
所述第二上行授权信息用于至少两次控制所述基站接收所述 UE发送的数 据时, 所述竟争解决消息中还包括: 所述第二上行授权信息使用的间隔时间和 使用次数。 优选地, 在本发明的另一其他实施例中, 所述基站还包括:
第二获取单元, 用于获取第一上行授权信息和前导码的映射关系, 其中, 所述第一上行授权信息和前导码的映射关系承载在通信协议中、所述基站发送 的广播消息中或所述基站发送的专用消息中;
第三获取单元,用于根据所述第二获取单元获取的所述第一上行授权信息 和前导码的映射关系,获取与所述第一接收单元接收的前导码相对应的第一上 行授权信息。
优选地, 在本发明的另一其他实施例中, 所述基站还包括:
第四获取单元,用于获取所述第一发送单元发送的随机接入响应消息中携 带的第一上行授权信息。
优选地, 在本发明的另一其他实施例中, 所述基站还包括:
第五获取单元, 用于获取第二下行指派信息和前导码的映射关系, 其中, 所述第二下行指派信息和前导码的映射关系承载在通信协议中、所述基站发送 的广播消息中或所述基站发送的专用消息中;
第六获取单元,用于根据所述第五获取单元获取的第二下行指派信息和前 导码的映射关系,获取与所述第一接收单元接收的前导码相对应的第二下行指 派信息。
优选地,在本发明的另一其他实施例中,所述基站还包括:第七获取单元, 用于获取所述第一发送单元发送的随机接入响应消息中携带的第二下行指派 信息。
本处多个实施例中公开的基站中各个部件的具体工作过程请参见对应图 2的实施例, 此处不再赘述。 本发明另一实施例还公开了一种用户设备 UE, 参见图 10, 包括: 第一发送单元 301 , 用于向基站发送前导码;
第一获取单元 302, 用于根据预先得到的第一下行指派信息和前导码的映 射关系, 获取与所述第一发送单元发送的前导码相对应的第一下行指派信息; 其中, 所述第一下行指派信息为随机接入响应消息所使用的下行指派信息; 优选地,在本发明的其他实施例中, 所述第一下行指派信息和前导码的映 射关系承载在通信协议中、所述基站发送的广播消息中或所述基站发送的专用 消息中。
第一接收单元 303 , 用于根据所述第一下行指派信息接收所述基站发送的 随机接入响应消息。
本实施例公开的用户设备,第一获取单元 302通过第一下行指派信息和前 导码的映射关系的方式, 得到第一下行指派信息, 其中, 所述第一下行指派信 息为随机接入响应消息所使用的下行指派信息, 不需要将釆用所述 PDCCH信 道重复随机接入响应消息的传输调度信令,解决了现有的随机接入方法中由于 釆用所述 PDCCH信道重复传输随机接入响应消息的调度信令而导致的信道资 源浪费和接入延时的问题。
本实施例公开的用户设备中各个部件的工作过程请参见对应图 6 的实施 例的内容, 此处不再赘述。
本发明另一实施例还公开了一种用户设备 UE, 参见图 11 , 包括: 第一发送单元 401 , 用于向基站发送前导码;
第一获取单元 402, 用于根据预先得到的第一下行指派信息和前导码的映 射关系, 获取与所述第一发送单元发送的前导码相对应的第一下行指派信息; 其中, 所述第一下行指派信息为随机接入响应消息所使用的下行指派信息; 第一接收单元 403 , 用于根据所述第一下行指派信息接收所述基站发送的 随机接入响应消息。
第二发送单元 404, 用于釆用预先得到的第一上行授权信息向所述基站发 送上行消息, 所述上行消息中携带有所述 UE的标识信息, 所述第一上行授权 信息为所述上行消息所使用的上行授权信息;
第二接收单元 405, 用于釆用预先得到的第二下行指派信息接收所述基站 发送的竟争解决消息; 其中, 所述第二下行指派信息为竟争解决消息所使用的 下行指派信息;
竟争结果生成单元 406, 用于根据所述竟争解决消息得到竟争解决结果。 优选地, 本发明其他实施例中, 竟争结果生成单元 406包括:
解掩单元, 用于解掩所述竟争解决消息得到所述 UE的标识信息; 第一竟争结果生成子单元,用于根据所述 UE的标识信息得到竟争解决结 果。
优选地, 本发明另一其他实施例中, 竟争结果生成单元 406包括: 第九获取单元,用于获取所述竟争解决消息中携带的所述 UE的标识信息; 第二竟争结果生成子单元,用于根据所述 UE的标识信息得到竟争解决结 果。
此处还需要说明的是, 所述 UE接收的所述竟争解决消息还包括: 所述 UE接收所述基站发送的数据所使用的第三下行指派信息,和 /或,所 述 UE向所述基站发送的数据所使用的第二上行授权信息。
并且,所述第三下行指派信息用于至少两次控制所述 UE接收所述基站发 送的数据时, 所述竟争解决消息还包括: 所述第三下行指派信息使用的间隔时 间和使用次数。
所述第二上行授权信息用于至少两次控制所述 UE向所述基站所述发送数 据时, 所述竟争解决消息还包括: 所述第二上行授权信息使用间隔的时间和使 用次数。
优选地, 本发明的其他实施例中, 所述 UE还包括:
第二获取单元, 用于获取第一上行授权信息和前导码的映射关系, 其中, 所述第一上行授权信息和前导码的映射关系承载在通信协议中、所述基站发送 的广播消息中或所述基站发送的专用消息中;
第三获取单元, 用于根据所述第一上行授权信息和前导码的映射关系, 获 取与所述第一发送单元发送的前导码相对应的第一上行授权信息。
优选地, 本发明的其他实施例中, 所述 UE还包括: 第四获取单元, 用于 获取所述第一接收单元接收的随机接入响应消息中携带的第一上行授权信息。
优选地, 本发明的其他实施例中, 所述 UE还包括:
第五获取单元, 用于获取第二下行指派信息和前导码的映射关系, 其中, 所述第二下行指派信息和前导码的映射关系承载在通信协议中、所述基站发送 的广播消息中或所述基站发送的专用消息中;
第六获取单元, 用于根据所述第二下行指派信息和前导码的映射关系, 获 取与所述第一发送单元发送的前导码相对应的第二下行指派信息;
优选地, 本发明的其他实施例中, 所述 UE还包括:
第七获取单元,用于获取所述第一接收单元接收的随机接入响应消息中携 带的第二下行指派信息。
优选地, 本发明的其他实施例中, 所述 UE还包括:
第八获取单元, 用于获取所述第一接收单元接收所述竟争解决消息的时 间; 其中, 所述第一接收单元接收所述竟争解决消息的时间承载在所述基站发 送的随机接入响应消息中, 通信协议中、 所述基站发送的广播消息中、 或者, 所述基站发送的专用消息中。
本处多个实施例公开的 UE中各个部件的具体工作过程, 请参见对应图 7 的实施例, 此处不再赘述。 本实施例方法所述的功能如果以软件功能单元的形式实现并作为独立的 产品销售或使用时, 可以存储在一个计算设备可读取存储介质中。基于这样的 理解,本发明实施例对现有技术做出贡献的部分或者该技术方案的部分可以以 软件产品的形式体现出来, 该软件产品存储在一个存储介质中, 包括若干指令 用以使得一台计算设备(可以是个人计算机, 服务器, 移动计算设备或者网络 设备等)执行本发明各个实施例所述方法的全部或部分步骤。 而前述的存储介 质包括: U盘、 移动硬盘、 只读存储器(ROM, Read-Only Memory )、 随机存 取存储器(RAM, Random Access Memory )、 磁碟或者光盘等各种可以存储程 序代码的介质。
本说明书中各个实施例釆用递进的方式描述,每个实施例重点说明的都是 与其它实施例的不同之处, 各个实施例之间相同或相似部分互相参见即可。
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本 发明。 对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见 的, 本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下,在 其它实施例中实现。 因此, 本发明将不会被限制于本文所示的这些实施例, 而 是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims

权 利 要 求
1、 一种随机接入方法, 其特征在于, 包括:
基站接收用户设备 UE发送的前导码;
所述基站根据预先得到的第一下行指派信息和前导码的映射关系 ,获取与 所述基站接收的前导码相对应的第一下行指派信息; 其中, 所述第一下行指派 信息为随机接入响应消息所使用的下行指派信息;
所述基站根据所述第一下行指派信息向所述 UE发送随机接入响应消息。
2、 根据权利要求 1所述的方法, 其特征在于, 所述基站向所述 UE发送 所述随机接入响应消息之后, 还包括:
所述基站釆用预先得到的第一上行授权信息接收所述 UE发送的上行消 息; 其中, 所述上行消息中携带有所述 UE的标识信息, 所述第一上行授权信 息为所述上行消息所使用的上行授权信息;
所述基站根据所述上行消息中携带的所述 UE的标识信息,生成竟争解决 消息;
所述基站釆用预先得到的第二下行指派信息向所述 UE发送所述竟争解决 消息, 其中, 所述第二下行指派信息为竟争解决消息所使用的下行指派信息。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述第一下行指派信 息和前导码的映射关系承载在通信协议中、所述基站发送的广播消息中或所述 基站发送的专用消息中。
4、 根据权利要求 2所述的方法, 其特征在于, 所述基站预先得到所述第 一上行授权信息的方式包括:
所述基站获取第一上行授权信息和前导码的映射关系;
所述基站根据所述第一上行授权信息和前导码的映射关系,获取与所述基 站接收的前导码相对应的第一上行授权信息;
其中, 所述第一上行授权信息和前导码的映射关系承载在通信协议中、所 述基站发送的广播消息中或所述基站发送的专用消息中。
5、 根据权利要求 2所述的方法, 其特征在于, 所述基站预先得到所述第 一上行授权信息的方式包括:
所述基站获取所述基站发送的随机接入响应消息中携带的第一上行授权 信息。
6、 根据权利要求 2所述的方法, 其特征在于, 所述基站预先得到所述第 二下行指派信息的方式包括:
所述基站获取第二下行指派信息和前导码的映射关系;
所述基站根据所述第二下行指派信息和前导码的映射关系 ,获取与所述基 站接收的前导码相对应的第二下行指派信息;
其中, 所述第二下行指派信息和前导码的映射关系承载在通信协议中、所 述基站发送的广播消息中或所述基站发送的专用消息中。
7、 根据权利要求 2所述的方法, 其特征在于, 所述基站预先得到所述第 二下行指派信息的方式包括:
所述基站获取所述基站发送的随机接入响应消息中携带的第二下行指派 信息。
8、 根据权利要求 2所述的方法, 其特征在于, 所述基站发送的所述随机 接入响应消息中、所述基站发送的广播消息中、所述基站发送的专用消息中或 者, 通信协议中还包括有所述 UE接收所述竟争解决消息的时间。
9、 根据权利要求 2所述的方法, 其特征在于, 所述基站根据所述上行消 息携带的所述 UE的标识信息生成竟争解决消息包括:
所述基站釆用所述 UE的标识信息加掩所述竟争解决消息;
所述基站将所述 UE的标识信息写入所述竟争解决消息。
10、 根据权利要求 2所述的方法, 其特征在于, 所述竟争解决消息中还包 括:
所述基站向所述 UE发送数据所使用的第三下行指派信息, 或者, 所述基 站接收所述 UE发送的数据所使用的第二上行授权信息。
11、 根据权利要求 10所述的方法, 其特征在于, 所述第三下行指派信息 用于至少两次控制所述基站向所述 UE发送数据时, 所述竟争解决消息中还包 括: 所述第三下行指派信息使用的间隔时间。
12、 根据权利要求 10所述的方法, 其特征在于, 所述第二上行授权信息 用于至少两次控制所述基站接收所述 UE发送的数据时, 所述竟争解决消息中 还包括: 所述第二上行授权信息使用的间隔时间。
13、 一种随机接入方法, 其特征在于, 包括:
用户设备 UE向基站发送前导码; 所述 UE根据预先得到的第一下行指派信息和前导码的映射关系,获取与 所述 UE发送的前导码相对应的第一下行指派信息; 其中, 所述第一下行指派 信息为随机接入响应消息所使用的下行指派信息;
所述 UE根据所述第一下行指派信息接收所述基站发送的随机接入响应消 息。
14、 根据权利要求 13所述的方法, 其特征在于, 所述 UE接收所述基站 发送的随机接入响应消息之后, 还包括:
所述 UE釆用预先得到的第一上行授权信息向所述基站发送上行消息,所 述上行消息中携带有所述 UE的标识信息, 所述第一上行授权信息为所述上行 消息所使用的上行授权信息;
所述 UE釆用预先得到的第二下行指派信息接收所述基站发送的竟争解决 消息; 其中, 所述第二下行指派信息为竟争解决消息所使用的下行指派信息; 所述 UE根据所述竟争解决消息得到竟争解决结果。
15、 根据权利要求 13或 14所述的方法, 其特征在于,
所述第一下行指派信息和前导码的映射关系承载在通信协议中、所述基站 发送的广播消息中或所述基站发送的专用消息中。
16、 根据权利要求 14所述的方法, 其特征在于, 所述 UE预先得到第一 上行授权信息的方式包括:
所述 UE获取第一上行授权信息和前导码的映射关系;
所述 UE根据所述第一上行授权信息和前导码的映射关系, 获取与所述
UE发送的前导码相对应的第一上行授权信息;
其中, 所述第一上行授权信息和前导码的映射关系承载在通信协议中、所 述基站发送的广播消息中或所述基站发送的专用消息中。
17、 根据权利要求 14所述的方法, 其特征在于, 所述 UE预先得到所述 第一上行授权信息的方式包括:
所述 UE获取所述 UE接收的随机接入响应消息中携带的第一上行授权信 息。
18、 根据权利要求 14所述的方法, 其特征在于, 所述 UE预先得到所述 第二下行指派信息的方式包括:
所述 UE获取第二下行指派信息和前导码的映射关系; 所述 UE根据所述第二下行指派信息和前导码的映射关系, 获取与所述 UE发送的前导码相对应的第二下行指派信息;
其中, 所述第二下行指派信息和前导码的映射关系承载在通信协议中、所 述基站发送的广播消息中或所述基站发送的专用消息中。
19、 根据权利要求 14所述的方法, 其特征在于, 所述 UE预先得到所述 第二下行指派信息的方式包括:
所述 UE获取所述 UE接收的随机接入响应消息中携带的第二下行指派信 息。
20、 根据权利要求 14所述的方法, 其特征在于, 所述 UE向所述基站发 送所述上行消息之后, 还包括:
所述 UE获取所述 UE接收所述竟争解决消息的时间; 其中, 所述 UE接 收所述竟争解决消息的时间承载在所述基站发送的随机接入响应消息中,通信 协议中、 所述基站发送的广播消息中、 或者, 所述基站发送的专用消息中。
21、 根据权利要求 14所述的方法, 其特征在于, 所述 UE根据所述竟争 解决消息得到竟争解决结果包括:
所述 UE解掩所述竟争解决消息得到所述 UE的标识信息;
所述 UE根据所述 UE的标识信息得到竟争解决结果。
22、 根据权利要求 14所述的方法, 其特征在于, 所述 UE根据所述竟争 解决消息得到竟争解决结果包括:
所述 UE获取所述竟争解决消息中携带的所述 UE的标识信息;
所述 UE根据所述 UE的标识信息得到竟争解决结果。
23、 根据权利要求 14所述的方法, 其特征在于, 所述 UE接收的所述竟 争解决消息中还包括:
所述 UE接收所述基站发送的数据所使用的第三下行指派信息或所述 UE 向所述基站发送的数据所使用的第二上行授权信息。
24、 根据权利要求 23所述的方法, 其特征在于, 所述第三下行指派信息 用于至少两次控制所述 UE接收所述基站发送的数据时,所述竟争解决消息还 包括: 所述第三下行指派信息使用的间隔时间。
25、 根据权利要求 23所述的方法, 其特征在于, 所述第二上行授权信息 用于至少两次控制所述 UE向所述基站所述发送数据时,所述竟争解决消息还 包括: 所述第二上行授权信息使用间隔的时间。
26、 一种基站, 其特征在于, 包括:
第一接收单元, 用于接收用户设备 UE发送的前导码;
第一获取单元,用于根据预先得到的第一下行指派信息和前导码的映射关 系,获取与所述第一接收单元接收的前导码相对应的第一下行指派信息;其中, 所述第一下行指派信息为随机接入响应消息所使用的下行指派信息;
第一发送单元,用于根据所述第一下行指派信息向所述 UE发送随机接入 响应消息。
27、 根据权利要求 26所述的基站, 其特征在于, 还包括:
第二接收单元,用于釆用预先得到的第一上行授权信息接收所述 UE发送 的上行消息, 其中, 所述上行消息中携带有所述 UE的标识信息, 所述第一上 行授权信息为所述上行消息所使用的上行授权信息;
生成单元, 用于根据所述上行消息中携带的所述 UE的标识信息, 生成竟 争解决消息;
第二发送单元,用于釆用预先得到的第二下行指派信息向所述 UE发送所 述竟争解决消息, 其中, 所述第二下行指派信息为竟争解决消息所使用的下行 指派信息。
28、 根据权利要求 26或 27所述的基站, 其特征在于, 所述第一下行指派 信息和前导码的映射关系承载在通信协议中、所述基站发送的广播消息中或所 述基站发送的专用消息中。
29、 根据权利要求 27所述的基站, 其特征在于, 还包括:
第二获取单元, 用于获取第一上行授权信息和前导码的映射关系, 其中, 所述第一上行授权信息和前导码的映射关系承载在通信协议中、所述基站发送 的广播消息中或所述基站发送的专用消息中;
第三获取单元,用于根据所述第二获取单元获取的所述第一上行授权信息 和前导码的映射关系,获取与所述第一接收单元接收的前导码相对应的第一上 行授权信息。
30、 根据权利要求 27所述的基站, 其特征在于, 还包括:
第四获取单元,用于获取所述第一发送单元发送的随机接入响应消息中携 带的第一上行授权信息。
31、 根据权利要求 27所述的基站, 其特征在于, 还包括:
第五获取单元, 用于获取第二下行指派信息和前导码的映射关系, 其中, 所述第二下行指派信息和前导码的映射关系承载在通信协议中、所述基站发送 的广播消息中或所述基站发送的专用消息中;
第六获取单元,用于根据所述第五获取单元获取的第二下行指派信息和前 导码的映射关系,获取与所述第一接收单元接收的前导码相对应的第二下行指 派信息。
32、 根据权利要求 27所述的基站, 其特征在于, 还包括:
第七获取单元,用于获取所述第一发送单元发送的随机接入响应消息中携 带的第二下行指派信息。
33、 根据权利要求 27所述的基站, 其特征在于, 所述基站发送的所述随 机接入响应消息中、所述基站发送的广播消息中、所述基站发送的专用消息中 或者, 通信协议中还包括有所述 UE接收所述竟争解决消息的时间。
34、 根据权利要求 27所述的基站, 其特征在于, 所述生成单元包括: 第一生成单元, 用于釆用所述 UE的标识信息加掩所述竟争解决消息; 第二生成单元, 用于将所述 UE的标识信息写入所述竟争解决消息。
35、 根据权利要求 27所述的基站, 其特征在于, 所述竟争解决消息还包 括:
所述基站向所述 UE发送数据所使用的第三下行指派信息, 或者, 所述基 站接收所述 UE发送的数据所使用的第二上行授权信息。
36、 根据权利要求 35所述的基站, 其特征在于, 所述第三下行指派信息 用于至少两次控制所述基站向所述 UE发送数据时,所述竟争解决消息还包括: 所述第三下行指派信息使用的间隔时间。
37、 根据权利要求 35所述的基站, 其特征在于, 所述第二上行授权信息 用于至少两次控制所述基站接收所述 UE发送的数据时, 所述竟争解决消息还 包括: 所述第二上行授权信息使用的间隔时间。
38、 一种用户设备 UE, 其特征在于, 包括:
第一发送单元, 用于向基站发送前导码;
第一获取单元,用于根据预先得到的第一下行指派信息和前导码的映射关 系 ,获取与所述第一发送单元发送的前导码相对应的第一下行指派信息;其中 , 所述第一下行指派信息为随机接入响应消息所使用的下行指派信息; 第一接收单元,用于根据所述第一下行指派信息接收所述基站发送的随机 接入响应消息。
39、 根据权利要求 38所述的用户设备, 其特征在于, 还包括:
第二发送单元,用于釆用预先得到的第一上行授权信息向所述基站发送上 行消息, 所述上行消息中携带有所述 UE的标识信息, 所述第一上行授权信息 为所述上行消息所使用的上行授权信息;
第二接收单元,用于釆用预先得到的第二下行指派信息接收所述基站发送 的竟争解决消息; 其中, 所述第二下行指派信息为竟争解决消息所使用的下行 指派信息;
竟争结果生成单元, 用于根据所述竟争解决消息得到竟争解决结果。
40、根据权利要求 38或 39所述的用户设备, 其特征在于, 所述第一下行 指派信息和前导码的映射关系承载在通信协议中、所述基站发送的广播消息中 或所述基站发送的专用消息中。
41、 根据权利要求 39所述的用户设备, 其特征在于, 还包括:
第二获取单元, 用于获取第一上行授权信息和前导码的映射关系, 其中, 所述第一上行授权信息和前导码的映射关系承载在通信协议中、所述基站发送 的广播消息中或所述基站发送的专用消息中;
第三获取单元, 用于根据所述第一上行授权信息和前导码的映射关系, 获 取与所述第一发送单元发送的前导码相对应的第一上行授权信息。
42、 根据权利要求 39所述的用户设备, 其特征在于, 还包括:
第四获取单元,用于获取所述第一接收单元接收的随机接入响应消息中携 带的第一上行授权信息。
43、 根据权利要求 39所述的用户设备, 其特征在于, 还包括:
第五获取单元, 用于获取第二下行指派信息和前导码的映射关系, 其中, 所述第二下行指派信息和前导码的映射关系承载在通信协议中、所述基站发送 的广播消息中或所述基站发送的专用消息中;
第六获取单元, 用于根据所述第二下行指派信息和前导码的映射关系, 获 取与所述第一发送单元发送的前导码相对应的第二下行指派信息。
44、 根据权利要求 39所述的用户设备, 其特征在于, 还包括: 第七获取单元,用于获取所述第一接收单元接收的随机接入响应消息中携 带的第二下行指派信息。
45、 根据权利要求 39所述的用户设备, 其特征在于, 还包括:
第八获取单元, 用于获取所述第一接收单元接收所述竟争解决消息的时 间; 其中, 所述第一接收单元接收所述竟争解决消息的时间承载在所述基站发 送的随机接入响应消息中, 通信协议中、 所述基站发送的广播消息中、 或者, 所述基站发送的专用消息中。
46、 根据权利要求 39所述的用户设备, 其特征在于, 所述竟争结果生成 单元包括:
解掩单元, 用于解掩所述竟争解决消息得到所述 UE的标识信息; 第一竟争结果生成子单元,用于根据所述 UE的标识信息得到竟争解决结 果。
47、 根据权利要求 39所述的用户设备, 其特征在于, 所述竟争结果生成 单元包括:
第九获取单元,用于获取所述竟争解决消息中携带的所述 UE的标识信息; 第二竟争结果生成子单元,用于根据所述 UE的标识信息得到竟争解决结 果。
48、 根据权利要求 39所述的用户设备, 其特征在于, 所述 UE接收的所 述竟争解决消息还包括:
所述 UE接收所述基站发送的数据所使用的第三下行指派信息或所述 UE 向所述基站发送的数据所使用的第二上行授权信息。
49、 根据权利要求 48所述的用户设备, 其特征在于, 所述第三下行指派 信息用于至少两次控制所述 UE接收所述基站发送的数据时,所述竟争解决消 息还包括: 所述第三下行指派信息使用的间隔时间。
50、 根据权利要求 48所述的用户设备, 其特征在于, 所述第二上行授权 信息用于至少两次控制所述 UE向所述基站所述发送数据时,所述竟争解决消 息还包括: 所述第二上行授权信息使用间隔的时间。
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