WO2014194496A1 - 一种信息发送和接收方法、装置及信息传输系统 - Google Patents

一种信息发送和接收方法、装置及信息传输系统 Download PDF

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Publication number
WO2014194496A1
WO2014194496A1 PCT/CN2013/076797 CN2013076797W WO2014194496A1 WO 2014194496 A1 WO2014194496 A1 WO 2014194496A1 CN 2013076797 W CN2013076797 W CN 2013076797W WO 2014194496 A1 WO2014194496 A1 WO 2014194496A1
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WO
WIPO (PCT)
Prior art keywords
information
scrambled
scrambling code
handover
module
Prior art date
Application number
PCT/CN2013/076797
Other languages
English (en)
French (fr)
Inventor
权威
张戬
胡振兴
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 CN201380023429.6A priority Critical patent/CN104380833B/zh
Priority to PCT/CN2013/076797 priority patent/WO2014194496A1/zh
Priority to EP13886435.0A priority patent/EP2999299B1/en
Publication of WO2014194496A1 publication Critical patent/WO2014194496A1/zh
Priority to US14/959,715 priority patent/US10057827B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/142—Reselecting a network or an air interface over the same radio air interface technology
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/12—Access point controller devices

Definitions

  • the present invention relates to the field of communications technologies, and more particularly to a method and apparatus for transmitting and receiving information and an information transmission system. Background technique
  • a base station evolved Node B, eNB
  • UE user equipment
  • each eNB in the tracking area (the tracking area) of the UE needs to broadcast a paging message carrying the identifier of the UE, and the UE receives the paging message carrying the identity of the UE. Then, the paging response is returned to establish a session connection; or, when the system information of a certain cell (including the frequency of the cell, the access resource, etc.) is changed, the eNB of the cell needs to broadcast the updated system information of the cell.
  • the UE updates the system information of the cell that is saved by itself, and if the system message of the multiple cells changes, the eNB of the multiple cells needs to broadcast and carry the cell.
  • the paging message of the updated system information; or each eNB in the TA broadcasts paging information carrying the Earthquake and Tsunami Warning System (ETWS) information, and after receiving the paging message, the UE reads The ETWS information carried in the paging message.
  • ETWS Earthquake and Tsunami Warning System
  • the UE when the UE is handed over from the source cell to the target cell, the UE reports the measurement report to the source cell eNB (hereinafter referred to as the source cell eNB as the SeNB), and the SeNB performs the handover decision according to the measurement report reported by the UE, and sends the handover decision to the target cell eNB.
  • the target cell eNB is referred to as a TeNB
  • the TeNB sends a handover preparation acknowledgement message to the SeNB, where the message carries a handover command
  • the SeNB sends a handover command to the UE, and after receiving the handover command, the UE receives the handover command. Switch to the target cell.
  • each eNB in a TA broadcasts a paging message, but each eNB broadcasts a paging message based on a different scrambling code, so that the UE can only receive one eNB broadcast at the same time.
  • the paging message therefore, when the UE is located at the cell edge, the information transmitted by the eNB cannot be accurately received due to the decrease in signal strength and quality.
  • the UE may cause The UE cannot normally reside in the cell where the system information is updated.
  • the paging message sent by the ETWS if the UE cannot receive it accurately, it will cause a catastrophic loss, and the handover command issued for the cell handover, If the UE cannot receive accurately, the UE may not be able to normally handover to the target cell.
  • the embodiments of the present invention provide a method, an apparatus, and an information transmission system for transmitting and receiving information, which are used to solve the problem that the information transmitted by the eNB cannot be accurately received when the UE is located at the cell edge in the prior art.
  • a method for sending information including:
  • At least two base station eNBs obtain information to be sent to the user equipment UE.
  • the scrambled information is delivered to the UE at the same time.
  • the at least two eNBs use the same scrambling code to send the UE to the UE.
  • the method further includes:
  • the at least two eNBs receive the configuration information sent by the network management entity, where the configuration information carries the first scrambling code information and parameter information for determining a sending moment of sending the paging message;
  • the scrambling of the information to be sent to the UE by using the same scrambling code includes: performing, by the at least two eNBs, the paging message by using the first scrambling code carried in the received configuration information.
  • Interference The information after the scrambling is sent to the UE at the same time includes:
  • the at least two eNBs determine, according to the parameter information carried in the configuration information, a sending moment of sending a paging message, and deliver the scrambled paging message to the UE at the determined sending moment.
  • the method further includes:
  • the at least two eNBs carry the physical resource information and the modulation and coding mode information used by the sent scrambled paging message in the paging scheduling information;
  • the scrambled paging scheduling information is sent to the UE, where the UE uses the saved first RNTI to decode the scrambled paging scheduling information, and obtains the decoded paging scheduling information. And receiving the physical resource information and the modulation and coding mode information, and receiving the scrambled paging message according to the acquired physical resource information and the modulation and coding mode information.
  • the at least two eNBs include a source cell eNB and a target cell eNB;
  • At least two eNBs obtain information to be sent to the UE, including:
  • the source cell eNB generates the handover preparation request information, and sends the handover preparation request information to the target cell eNB, where the handover preparation request information carries the second scrambling code information and the transmission time information of the transmission handover command;
  • the target cell eNB After receiving the handover preparation request information, the target cell eNB generates handover preparation confirmation information that carries the handover request, and returns the handover preparation confirmation information to the source cell eNB;
  • the source cell eNB uses the received handover request carried in the handover preparation acknowledgement information as the obtained information to be sent to the UE;
  • the scrambling of the information to be sent to the UE by using the same scrambling code includes: the source cell eNB and the target cell eNB using the second scrambling code pair carried in the handover preparation request information.
  • the switching command performs scrambling;
  • the information after the scrambling is sent to the UE at the same time includes: The source cell eNB and the target cell eNB send the scrambled handover command to the UE at the transmission time carried in the handover preparation request information.
  • the method before the at least two base station eNBs obtain the information to be sent to the user equipment UE, the method further includes:
  • the source cell eNB sends the second scrambling code information to the UE for saving.
  • the method before the method sends the scrambled information to the UE at the same time, the method further includes:
  • the source cell eNB and the target cell eNB carry the physical resource information and the modulation and coding mode information used by the scrambled handover command in the handover scheduling information;
  • the scrambling scheduling information is scrambled by using a preset second wireless network temporary identification code RNTI;
  • the physical resource information and the modulation and coding mode information are received, and the scrambled handover command is received according to the acquired physical resource information and the modulation and coding mode information.
  • a method for receiving information including:
  • the user equipment UE receives information that is scrambled by the same scrambling code sent by at least two base station eNBs at the same time;
  • the method further includes: the UE And receiving the configuration information sent by the network management entity, where the configuration information carries the first scrambling code information and parameter information for determining a receiving moment of receiving the paging message;
  • the UE receives the information that is scrambled by the same scrambling code sent by the at least two eNBs at the same time, and specifically includes:
  • the UE uses the first scrambling code carried in the configuration information to perform combined decoding on the received scrambled paging messages.
  • the UE receives at least two eNBs at the same receiving moment, and sends the same scrambling code scrambled at the same time.
  • the method further includes:
  • the UE receives, by the UE, the paging message that is buffered by the same scrambling code sent by the at least two eNBs at the same time, which includes:
  • the UE receives, according to the acquired physical resource information, a paging message that is sent by the at least two eNBs at the same time and is scrambled by the same scrambling code on the corresponding physical resource at the determined receiving time. And demodulating the received scrambled paging messages according to the obtained modulation and coding mode information.
  • the method further includes: Receiving second scrambling code information sent by the source cell eNB and saving the information;
  • the UE receives the information that is scrambled by the same scrambling code sent by the at least two eNBs at the same time, and specifically includes:
  • the UE receives the handover command that is sent by the source cell eNB and the target cell eNB at the same time and is scrambled by the second scrambling code; wherein, the cell currently serving the UE is a source cell, where The cell to which the UE is to be handed over is the target cell; And combining, by using the scrambling code used by the at least two eNBs that are pre-stored, the received and scrambled information to be combined and decoded, specifically:
  • the UE uses the second scrambling code to perform combined decoding on the received scrambled handover commands.
  • the UE receives the source cell eNB and the target cell eNB at the same time, and after the second scrambling code is scrambled, Before the switching command, the method further includes:
  • the UE receives the handover command that is sent by the source cell eNB and the target cell eNB at the same time and is scrambled by the second scrambling code, and specifically includes:
  • the UE receives, according to the acquired physical resource information, a handover command that is sent by the source cell eNB and the target cell eNB at the same time and is scrambled by the second scrambling code, and Demodulating the received scrambled switching commands according to the acquired modulation and coding mode information.
  • an information sending apparatus including:
  • An obtaining module configured to obtain information to be sent to the user equipment UE
  • a scrambling module configured to scramble the information to be sent to the UE obtained by the acquiring module by using an agreed scrambling code, where the agreed scrambling code and the other base station eNB are to the UE
  • the scrambling code used for the information scrambling is the same;
  • a sending module configured to send the information scrambled by the scrambling module to the UE at an agreed time, where the agreed time is the same as the time at which the other eNB sends the scrambled information to the UE.
  • the device further includes: a receiving module, configured to: when the information that is to be sent by the acquiring module to the UE is a paging message, Receiving a network tube before the scrambling module scrambles the information to be sent to the UE Configuration information sent by the physical entity, where the configuration information carries the first scrambling code information and parameter information for determining a sending moment of sending the paging message;
  • the scrambling module is specifically configured to: scramble the paging message by using the first scrambling code carried in the received configuration information;
  • the sending module is configured to: determine, according to the parameter information carried in the configuration information, a sending moment of sending a paging message, and deliver the scrambled paging message to the UE at the determined sending moment.
  • the device further includes:
  • a scheduling module configured to: before the transmitting module sends the scrambled information to the UE, the physical resource information and the modulation and coding mode information used to send the scrambled paging message are carried in the paging scheduling information. ;
  • the scrambling module is further configured to: scramble the paging scheduling information obtained by the scheduling module by using a preset first radio network temporary identifier RNTI;
  • the sending module is further configured to send the paging scheduling information that is scrambled by the scrambling module to the UE, where the UE is configured to use the saved first RNTI to perform scrambling
  • the scheduling information is decoded, and the physical resource information and the modulation and coding mode information carried in the decoded paging scheduling information are obtained, and the scrambled paging message is received according to the acquired physical resource information and the modulation and coding mode information.
  • the acquiring module is specifically configured to: generate handover preparation request information, and first send, by the target cell eNB, the handover preparation request information, where the handover preparation request information Receiving the second scrambling code information and the transmission time information of the transmission handover command, receiving the handover preparation confirmation information carrying the handover request returned by the target cell eNB, and obtaining the handover request carried in the handover preparation confirmation information as the obtained Information to be sent to the UE;
  • the scrambling module is specifically configured to: scramble the handover command by using a second scrambling code carried in the handover preparation request information;
  • the sending module is specifically configured to: send a sending moment in the handover preparation request information to The UE sends a scrambled handover command.
  • the sending module is further configured to: before the obtaining module obtains information to be sent to the UE, the second scrambling code information Sended to the UE for saving.
  • the apparatus further includes:
  • a scheduling module configured to: before the transmitting module sends the scrambled information to the UE, the physical resource information and the modulation and coding mode information used to send the scrambled handover command are carried in the handover scheduling information;
  • the scrambling module is further configured to: scramble the handover scheduling information obtained by the scheduling module by using a preset second radio network temporary identifier RNTI;
  • the sending module is further configured to send the handover scheduling information that is scrambled by the scrambling module to the UE, and configured to enable the UE to use the saved second RNTI to perform handover scheduling after scrambling
  • the information is decoded, and the physical resource information and the modulation and coding mode information carried in the decoded handover scheduling information are obtained, and the scrambled handover command is received according to the acquired physical resource information and the modulation and coding mode information.
  • a fourth aspect provides an information receiving apparatus, including:
  • a first receiving module configured to receive, by using at least two base station eNBs, information that is scrambled by the same scrambling code at the same time;
  • the first decoding module is configured to perform combined decoding on each scrambled information received by the first receiving module by using a pre-storage scrambling code used by the at least two eNBs.
  • the device further includes: a second receiving module, configured to receive, by the first receiving module, that at least two eNBs send the same time at the same time Before the scrambled information is scrambled, the configuration information sent by the network management entity is received and saved, where the configuration information carries the first scrambling code information and parameter information for determining the receiving moment of receiving the paging message;
  • the first receiving module is configured to: determine, according to the parameter information carried in the configuration information, a receiving moment of receiving a paging message, and receive at least two eNBs at the determined receiving moment. Paging messages that are sent at the same time and scrambled with the same scrambling code;
  • the first decoding module is specifically configured to: perform the combined decoding on the received scrambled paging messages by using the first scrambling code carried in the configuration information.
  • the device further includes:
  • a third receiving module configured to receive, by the first receiving module, the at least two eNBs to send the at least two eNBs to send the paging message after the same scrambling code scrambled message at the same time Pre-set paging scheduling information scrambled by the first radio network temporary identifier RNTI;
  • a second decoding module configured to: use the saved first RNTI to decode the scrambled paging scheduling information received by the third receiving module, and obtain the physics carried in the decoded paging scheduling information.
  • the first receiving module is configured to: according to the physical resource information acquired by the second decoding module, receive, at a determined receiving time, at least two eNBs sent at the same time according to the physical resource information acquired by the second decoding module. And using the same scrambling code to scramble the paging message, and demodulating the received scrambled paging message according to the modulation and coding mode information acquired by the second decoding module.
  • the device further includes: a second receiving module, configured to receive the second scrambling code information sent by the source cell eNB and save the first receiving module And receiving, by the source cell eNB and the target cell eNB, a handover command that is spoofed by the second scrambling code, where the cell currently serving the UE is a source cell, where The cell to which the UE is to be handed over is the target cell;
  • the first decoding module is specifically configured to perform combined decoding on each scrambled handover command received by the first receiving module by using the second scrambling code received by the second receiving module.
  • the device further includes:
  • a third receiving module configured to receive, before the first receiving module, the switching command after the source cell eNB and the target cell eNB send the same scrambling code at the same time, The preset second wireless network temporary label sent by the source cell eNB and the target cell eNB Identifying handover scheduling information after scrambling RNTI;
  • a second decoding module configured to decode the scrambled handover scheduling information by using the second RNTI received by the second receiving module, and obtain physical resource information and modulation carried in the decoded handover scheduling information Coding mode information;
  • the first receiving module is specifically configured to: according to the physical resource information acquired by the second decoding module, receive, by using the physical resource, the source cell eNB and the target cell eNB at the same time The switching command after the second scrambling code is scrambled, and demodulating the received scrambled switching commands according to the modulation and coding mode information acquired by the second decoding module.
  • an information transmission system including at least two base station eNBs and user equipment UEs;
  • At least two eNBs are configured to obtain information to be sent to the UE, and use the same scrambling code to scramble the information to be sent to the UE, and deliver the scrambled information to the UE at the same time;
  • the UE is configured to receive information that is scrambled by the at least two eNBs and use the same scrambling code at the same time, and use the pre-stored scrambling codes used by the at least two eNBs to receive the received
  • the scrambled information is combined and decoded.
  • a base station including:
  • a receiver configured to obtain information to be sent to the user equipment UE
  • a signal processor coupled to the receiver and the transmitter, for scrambling, by the agreed scrambling code, the information to be sent to the UE obtained by the receiver, where the agreed scrambling code
  • the scrambling code used by the other base station eNB to scramble the information to be sent to the UE is the same;
  • a transmitter configured to send the information that is scrambled by the signal processor to the UE at an agreed time, where the agreed time is the same as the time at which the other eNB sends the scrambled information to the UE.
  • a user equipment including:
  • a receiver configured to receive information that is sent by the at least two base station eNBs at the same time and scrambled by the same scrambling code
  • a decoder coupled to the receiver, configured to perform combined decoding on each scrambled information received by the receiver by using a pre-saved scrambling code used by the at least two eNBs.
  • An embodiment of the present invention provides a method, an apparatus, and an information transmission system for transmitting and receiving information, where at least two eNBs obtain information to be sent to a UE, and use the same scrambling code to add information to be sent to the UE. Disturb, and deliver the scrambled information to the UE at the same time.
  • the UE can receive at least two information scrambled by the same scrambling code, so The foregoing method provided by the embodiment of the present invention can improve the accuracy of the information sent by the receiving eNB when the UE is located at the cell edge, compared to the method in the prior art that the UE can only receive one of the scrambled information.
  • FIG. 1 is a schematic diagram of an information sending process according to an embodiment of the present invention
  • FIG. 2 is an information receiving process based on FIG. 1 according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a paging message sending process according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a paging message receiving process based on FIG. 3 according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a handover command sending process according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a handover command receiving process based on FIG. 5 according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of an information sending apparatus according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of an information receiving apparatus according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of an information transmission system according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. detailed description
  • An embodiment of the present invention provides a method, an apparatus, and an information transmission system for transmitting and receiving information, where at least two eNBs obtain information to be sent to a UE, and use the same scrambling code to add information to be sent to the UE. Disturb, and deliver the scrambled information to the UE at the same time. Since the at least two eNBs send the information scrambled by the same scrambling code to the UE at the same time, the UE can use the same information after receiving the scrambled information sent by each eNB. Scrambling code The code, therefore, when the UE is located at the cell edge, the information transmitted by the eNB can still be accurately received.
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDM Frequency Division Multiple Addressing
  • OFDMA Orthogonal Frequency OFDMA (Orthogonal Frequency-Division Multiple Access) system
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • the user equipment which may be a wireless terminal, may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal
  • RAN Radio Access Network
  • the computers for example, can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
  • PCS Personal Communication Service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • a device such as a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, and an Access Point ( Access Point), Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • a base station can refer to one or more of the access networks that are on the air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), this application is not limited.
  • system and “network” are often used interchangeably herein.
  • the term “and/or” is merely an association describing an associated object, indicating that there may be three relationships, such as , A and / or B, can be expressed as: A exists separately, there are A and B, there are three cases of B.
  • the character "/" in this article generally indicates that the context of the context is an "or” relationship .
  • At least two eNBs use the same scrambling code to scramble the information to be sent to the UE, and deliver the scrambled information to the UE at the same time.
  • the UE receives the information.
  • Each of the scrambled information sent by the at least two eNBs is combined with the scrambling codes used by the at least two eNBs, and the received scrambled information is combined and decoded, as shown in FIG. .
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • FIG. 1 is a schematic diagram of an information sending process according to an embodiment of the present invention, which specifically includes the following steps:
  • S101 At least two eNBs obtain information to be sent to the UE.
  • the information to be sent to the UE includes, but is not limited to, a paging message, a handover command, and other signaling messages, and the at least two eNBs may be from a core network or other network entity (such as an operation and maintenance management entity).
  • the information to be sent to the UE is obtained, and the information to be sent to the UE is obtained by the interaction between the at least two eNBs, and the information to be sent to the UE is generated by itself.
  • the at least two eNBs may be the eNBs of the cells in the TA, or may be the eNBs in the area including the at least two eNBs, which are not limited in the present invention. It can be understood that the eNB in the embodiment of the present invention may be replaced by a cell, which is not limited by the present invention.
  • S102 The information to be sent to the UE is scrambled by using the same scrambling code.
  • the at least two eNBs may pre-save the scrambling code to be used, where The scrambling codes stored in advance by each eNB are the same.
  • the pre-stored scrambling code may be a scrambling code that is sent to each eNB by the network management entity in advance, or may be agreed by each eNB, or may be fixed in the transmission protocol. After the eNB obtains the information to be sent to the UE, the eNB can use the pre-stored scrambling code to scramble the information to be sent to the UE.
  • the sending time of the information that the eNB sends the scrambled information to the UE may be sent by the network management entity to the eNBs in advance, or may be agreed by each eNB, or may be fixed in the transport protocol. .
  • the eNBs may send the scrambling to the UE at the sending time sent by the network management entity in advance or at the sending time agreed by each eNB. After the information.
  • the process of the UE receiving the scrambled information delivered by each eNB is as shown in FIG. 2 .
  • FIG. 2 is a schematic diagram of the information receiving process based on FIG. 1 according to an embodiment of the present invention, which specifically includes the following steps:
  • the UE receives information that is sent by the at least two eNBs and is scrambled by the same scrambling code at the same time.
  • the eNB may send the transmission time.
  • the UE is notified to the UE at the time of notification, and the UE receives the information that is sent by each eNB and scrambled by the same scrambling code.
  • S202 Combine and decode the received scrambled information by using a scrambling code used by at least two eNBs stored in advance.
  • the eNB may notify the UE of the used scrambling code, and the UE may After receiving the scrambled information sent by each eNB, the received scrambled code is used to combine and decode the received scrambled information. Specifically, the UE may first combine the received scrambled information, and then use the notified scrambling code to decode the combined information, or may also use the notified scrambling code pair to receive the received information. Each scrambled information is decoded separately, if not one The scrambled information can be successfully decoded, and then the scrambled information is combined and decoded, which is not limited herein.
  • the at least two eNBs can send the information scrambled by the same scrambling code to the UE at the same time, so that the UE can use the scrambled information sent by each eNB after receiving the information.
  • the same scrambling code is combined and decoded, so that even if the UE is located at the cell edge, the information transmitted by the eNB can be accurately received.
  • each eNB scrambles the information to be delivered by using the same scrambling code, and transmits the scrambled information at the same time.
  • the received scrambled information is equivalent to For a multipath signal, the UE only needs to process the multipath signal.
  • the foregoing information sending and receiving method is applicable to an application scenario in which at least two eNBs perform information exchange with a UE, for example, a scenario in which each eNB in one TA sends a paging message to a UE, or a source cell eNB and a target cell eNB to a UE
  • the scenario of sending a switch command is described in detail below.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the second embodiment is a scenario in which each eNB sends a paging message to the UE, and a detailed description of the information sending and receiving method provided by the embodiment of the present invention is shown in FIG. 3.
  • FIG. 3 is a schematic diagram of a paging message sending process according to an embodiment of the present invention, which specifically includes the following steps:
  • the at least two eNBs receive configuration information sent by the network management entity, where the configuration information carries the first scrambling code information and parameter information for determining a sending moment of sending the paging message.
  • the network management entity may pre-send configuration information that carries the first scrambling code information and the parameter information for determining the sending time to each eNB. Specifically, the network management entity may send, to each eNB, configuration information that carries the first scrambling code information, the paging period T, and a parameter (nB) for determining the number of paging packets and the number of paging subframes per wireless frame. Each eNB saves the received configuration information, wherein each eNB can determine the transmission time of the paging message to be transmitted according to the paging periods T and nB in the configuration information.
  • each eNB may determine to send.
  • each eNB may determine that the transmission time of the paging message is the subframe 9 of the frame 0, and the subframe 9 of the frame 32. , the 9th subframe of the 64th frame, and the like.
  • the first scrambling code and the sending time of the sending of the paging message may also be pre-agreed by the eNBs or fixed in the protocol.
  • the embodiment of the present invention is only described by the network management entity being uniformly delivered as an example.
  • the eNB needs to send a paging message at all possible paging message sending moments, so that all UEs under the eNB can receive the paging message, thereby obtaining updated system information.
  • ETWS information is a scenario of system information update or ETWS information.
  • S302 The at least two eNBs obtain a paging message to be sent to the UE.
  • each eNB may obtain a paging message to be delivered from a core network or other network entity.
  • each eNB in the TA where the UE is located may be from the core network.
  • Obtaining a paging message carrying the identifier of the UE; or, when the system information of all the cells in the TA is changed, each eNB in the TA may obtain the system information that carries the updated system information of the cell from the core network.
  • each eNB in the TA may obtain paging information carrying ETWS information from the core network.
  • the paging message is scrambled by using the first scrambling code carried in the received configuration information. Since each eNB has saved configuration information that carries the same scrambling code (ie, the first scrambling code), after each eNB obtains the paging message to be delivered, the first information carried in the configuration information may be used. Scrambling code, scrambling the paging message.
  • S304 Determine, according to the parameter information carried in the received configuration information, a sending time of sending the paging message, and send the scrambled paging message to the UE at the determined sending moment.
  • each eNB may determine, according to the saved parameter information used in the configuration information for determining the transmission time of the paging message to be sent, After the paging message is scrambled by using the first scrambling code, the scrambled paging message may be sent to the UE at the determined transmission time.
  • FIG. 4 is a process for receiving a paging message based on FIG. 3 according to an embodiment of the present invention, which specifically includes the following steps:
  • the UE receives the configuration information sent by the network management entity and saves, where the configuration information carries the first scrambling code information and parameter information for determining a receiving moment of receiving the paging message.
  • the network management entity may send, by using the eNB, the configuration information that carries the first scrambling code information and the parameter information for determining the receiving moment of receiving the paging message to the UE.
  • the network management entity may send, by the eNB, configuration information that carries the first scrambling code information, the paging period T, and the parameter (nB) for determining the number of paging packets and the number of paging subframes per radio frame.
  • the UE saves the received configuration information, wherein the UE can determine the receiving moment of receiving the paging message according to the paging periods T and nB in the configuration information.
  • the UE determines, according to the parameter information carried in the configuration information, the receiving time of receiving the paging message, and receives, at the determined receiving moment, the paging message that is sent by the at least two eNBs and is scrambled by the same scrambling code.
  • the UE may determine, according to the saved parameter information used to determine the receiving moment of receiving the paging message, the receiving moment of receiving the paging message, and determining the receiving moment, Receiving a paging message that is sent by each eNB and scrambled by the same scrambling code.
  • S403 The UE uses the first scrambling code carried in the configuration information to perform combined decoding on the received scrambled paging messages.
  • the UE may use the first scrambling code carried in the configuration information to receive the Each scrambled paging message arrives for decoding. Specifically, the UE may first combine the received scrambled paging messages, and then use the first scrambling code to decode the combined paging messages, or may first use the first scrambling codes respectively. Decoding each scrambled paging message, if there is no one added The scrambled paging message can be successfully decoded, and then the scrambled paging messages are combined and decoded, which is not limited herein.
  • the UE may return a paging response to the core network through the eNB of the camping cell to establish a session connection; if the merged decoded paging message carries the cell in the cell
  • the updated system information the UE correspondingly updates the system information of the cell saved by itself; if the UE merges and decodes the paging message to carry the ETWS information, the UE may further read the ETWS information.
  • the physical resource information used by the scrambled paging message may also be sent.
  • the modulation and coding mode information is carried in the paging scheduling information, and the paging scheduling information is scrambled by using a preset first radio network temporary identification code (RNTI), and the scrambled paging scheduling information is sent.
  • RNTI radio network temporary identification code
  • the physical resources and modulation and coding methods used by each eNB to send the scrambled paging message are the same.
  • the core network or other network management entity can uniformly deliver the physical resources and modulation and coding modes to be used in advance by each eNB. , may also be pre-agreed by each eNB, or may be fixed in the transmission protocol.
  • the UE may receive paging scheduling information that is sent by each eNB and is scrambled by the first RNTI, and is added according to the first RNTI
  • the scrambled paging scheduling information is decoded, and the physical resource information and the modulation and coding mode information carried in the decoded paging scheduling information are obtained.
  • the UE may receive the eNB according to the acquired physical resource information, on the corresponding physical resource, and at the receiving time determined according to the configuration information.
  • the transmitted paging message is scrambled by the same scrambling code, and then the received scrambled paging message is demodulated according to the obtained modulation and coding mode information.
  • the first RNTI may be fixed in the protocol in advance, or may be uniformly sent by the core network or other network management entity to each e NB and the UE, or sent by the eNB to the UE after obtaining the first RNTI, and the specific sending method It can be sent by system broadcast message. It can be understood that each eNB obtains the first RNTI before sending a paging message, and the UE obtains before receiving the paging message.
  • the first RNTI may be a P-RNTI in the prior art, or may be a new RNTI, which is not limited herein.
  • each eNB sends a paging message to the UE and the UE receives the paging message according to the embodiment of the present invention.
  • the process of the eNB transmitting the handover command and the UE receiving the handover command when the UE performs cell handover is described in detail below.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the third embodiment is a scenario in which each eNB sends a handover command to the UE, and a detailed description of the information transmission and reception method provided by the embodiment of the present invention is shown in FIG. 5.
  • FIG. 5 is a schematic diagram of a handover command sending process according to an embodiment of the present invention, which specifically includes the following steps:
  • the source cell eNB sends the second scrambling code information to the UE for storage.
  • the cell currently serving the UE is the source cell, and the cell to which the UE is to be handed over is the target cell.
  • the source cell eNB may send the second scrambling code information to the UE at any time during the service for the UE, where the second scrambling code information is pre-stored by the source cell eNB.
  • the source cell eNB generates handover preparation request information, and sends the handover preparation request information to the target cell eNB.
  • the measurement report is reported to the source cell eNB, and the source d and the area eNB perform handover decision.
  • the source cell eNB determines the handover
  • the source d and the area eNB generate handover preparation request information, and send the handover preparation request information to the target cell eNB.
  • the handover preparation request information carries the second scrambling code information and the transmission time information of the transmission handover command.
  • the handover preparation request information may further include information such as a physical resource used by the handover command and a modulation and coding scheme.
  • the transmission time may also be agreed by the target cell eNB to the source cell eNB, that is, the handover preparation confirmation information sent by the target cell eNB to the source cell eNB (ie, subsequent In step S503), the transmission time is carried.
  • the second scrambling code that scrambles the handover command must be agreed by the source cell eNB to the target cell eNB, because the second scrambling code is saved by the source cell eNB itself, and when the UE is in the source cell, the source cell eNB A second scrambling code has been sent to the UE, if the scrambling code is agreed by the target cell eNB to the source cell eNB, Then, the subsequent UE cannot normally decode the scrambled handover command.
  • the physical resource used by the handover command, the modulation and coding scheme, and the like may also be agreed by the target cell eNB to the source cell eNB, that is, the handover preparation confirmation information sent by the target cell eNB to the source cell eNB (ie, the subsequent step S503). It carries the physical resources used to send the handover command, and the modulation and coding methods.
  • the target cell eNB generates handover preparation confirmation information carrying a handover command, and sends the handover preparation confirmation information to the source cell eNB.
  • the target cell eNB After receiving the handover preparation request information sent by the source cell eNB, the target cell eNB generates handover preparation confirmation information carrying the handover command, and returns the source cell eNB to obtain the handover command.
  • S504 The source cell eNB and the target cell eNB perform scrambling on the handover command by using the second scrambling code carried in the handover preparation request information.
  • the source cell eNB and the target cell eNB have agreed on the second scrambling code used for scrambling, the source cell eNB and the target cell eNB use the agreed second scrambling code to scramble the handover command.
  • S505 The source cell eNB and the target cell eNB send the scrambled handover command to the UE at the transmission time carried in the handover preparation request information.
  • the source cell eNB and the target cell eNB Since the source cell eNB and the target cell eNB have agreed to send the handover time of the handover command, the source cell eNB and the target cell eNB deliver the scrambled handover command to the UE at the agreed transmission time.
  • the source cell eNB and the target cell eNB may use the physical resource carried in the handover preparation request information at the agreed transmission time.
  • the modulation and coding mode delivers the scrambled handover command to the UE.
  • the source cell eNB and the target cell eNB are the same eNB, the handover preparation request information and the handover preparation acknowledgement information are transmitted and received by the same eNB.
  • FIG. 6 is a process of receiving a handover command based on FIG. 5 according to an embodiment of the present invention, and specifically includes the following steps:
  • the UE receives the second scrambling code information sent by the source cell eNB and saves the information.
  • the UE when the source cell is serving the UE, the UE receives the second scrambling code information sent by the source cell eNB and saves it, so as to subsequently decode the handover command.
  • S602 The UE receives a handover command that is sent by the source cell eNB and the target cell eNB at the same time and is scrambled by the second scrambling code.
  • the source cell eNB and the target cell eNB send the scrambled handover command to the UE by using the method shown in FIG. 5.
  • S603 The UE uses the pre-saved second scrambling code to perform combined decoding on the received scrambled handover commands.
  • the UE may use the pre-stored second scrambling code to perform combined decoding on the received scrambled handover commands, and according to the merge
  • the decoded handover command completes the cell handover. Specifically, the UE may first combine the received scrambled handover commands, and then use the second scrambling code to decode the combined handover command, or first use the second scrambling code pair to receive the received The switching command is used for decoding. If no scrambling switching command can be successfully decoded, the scrambled switching commands are combined and decoded, which is not limited herein.
  • the source cell eNB and the target cell eNB may also send the physical used by the scrambled handover command before delivering the scrambled handover command to the UE.
  • the resource information and the modulation and coding scheme information are the source cell eNB agreed with the target cell eNB by using the handover preparation request information.
  • the target cell eNB may also prepare the acknowledgement information and the source cell through handover.
  • the eNB is configured to be carried in the handover scheduling information, and the handover scheduling information is scrambled by using the preset second RNTI, and then the scrambled handover scheduling information is sent to the UE.
  • the UE before receiving the scrambled handover command, receives the handover scheduling information that is buffered by the source eNB and the target eNB by using the preset second RNTI, and uses the saved second RNTI pair.
  • Disturbed handover scheduling information decoding Obtaining the physical resource information and the modulation and coding mode information carried in the decoded handover scheduling information, and receiving, according to the acquired physical resource information, the source cell eNB and the target cell eNB at the same time on the corresponding physical resource.
  • the switching command after the second scrambling code is scrambled, and then demodulating the received scrambled switching commands according to the acquired modulation and coding mode information.
  • the second RNTI may be uniformly sent by the core network or other network management entity to each eNB and the UE, or may be sent by the core network or other management entity to each eNB, and then sent by the source cell eNB to the UE.
  • the method may be performed by using a system broadcast message or a dedicated radio resource control (RRC) message, etc., and is not limited herein.
  • RRC radio resource control
  • the UE may further send feedback information to the source cell eNB and/or the target cell eNB according to the decoding situation, so that the source cell eNB and/or the target cell eNB may be used. Whether or not to perform retransmission is determined based on the feedback information. If the feedback information is that the scrambled handover command is not successfully decoded, the source cell eNB and/or the target cell eNB may perform retransmission.
  • the above is a process in which the source cell eNB and the target cell eNB provide a handover command to the UE and the UE receives the handover command.
  • the method for transmitting and receiving information according to the first embodiment of the present invention is not limited to the scenario of sending and receiving paging messages and handover commands, and may also be applied to scenarios where two other eNBs and UEs transmit information. - Narrative. Based on the same idea, an embodiment of the present invention further provides an information transmitting apparatus and a receiving apparatus, and an information transmission system, which will be described in detail below.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • FIG. 7 is a schematic structural diagram of an information sending apparatus according to an embodiment of the present disclosure, which specifically includes: an obtaining module 701, configured to obtain information to be sent to a user equipment UE;
  • the scrambling module 702 is configured to use the agreed scrambling code to obtain the desired direction of the acquiring module 701.
  • the information sent by the UE is scrambled, where the agreed scrambling code is the same as the scrambling code used by the other base station eNB to scramble the information to be sent to the UE;
  • the sending module 703 is configured to send the information that is scrambled by the scrambling module 702 to the UE at an agreed time, where the agreed time is compared with the time when the other eNB sends the scrambled information to the UE. Same.
  • the device also includes:
  • the receiving module 704 is configured to: when the information to be sent to the UE obtained by the acquiring module 701 is a paging message, before the scrambling module 702 scrambles the information to be sent to the UE And receiving the configuration information sent by the network management entity, where the configuration information carries the first scrambling code information and parameter information used to determine a sending moment of sending the paging message;
  • the scrambling module 702 is specifically configured to: perform scrambling on the paging message by using the first scrambling code carried in the received configuration information;
  • the sending module 703 is specifically configured to: determine, according to the parameter information carried in the configuration information, a sending moment of sending a paging message, and send the scrambled paging message to the UE at the determined sending moment.
  • the device also includes:
  • the scheduling module 705 is configured to: before the sending module 703 sends the scrambled information to the UE, the physical resource information and the modulation and coding mode information used by the sent paging message are carried in the paging scheduling.
  • the scrambling module 702 is further configured to: scramble the paging scheduling information obtained by the scheduling module 705 by using a preset first radio network temporary identifier RNTI;
  • the sending module 703 is further configured to send the paging scheduling information that is scrambled by the scrambling module 702 to the UE, where the UE is used to perform scrambling on the saved first RNTI pair.
  • the paging scheduling information is decoded, and the physical resource information and the modulation and coding mode information carried in the decoded paging scheduling information are obtained, and the scrambled paging message is received according to the obtained physical resource information and the modulation and coding mode information.
  • the acquiring module 701 is specifically configured to: generate handover preparation request information, and first send the handover preparation request information by the target cell eNB, where the handover preparation request information carries the second scrambling code information and the transmission moment of the transmission handover command. Receiving, by the target cell eNB, the handover preparation confirmation information carrying the handover request, and receiving the handover request carried in the handover preparation confirmation information as the obtained information to be sent to the UE;
  • the scrambling module 702 is specifically configured to: scramble the handover command by using a second scrambling code carried in the handover preparation request information;
  • the sending module 703 is specifically configured to send the scrambled switching command to the UE at the sending time carried in the handover preparation request information.
  • the sending module 703 is further configured to send the second scrambling code information to the UE for saving before the obtaining module 701 obtains information to be sent to the UE.
  • the device also includes:
  • the scheduling module 705 is configured to: before the sending module 703 sends the scrambled information to the UE, the physical resource information and the modulation and coding mode information used to send the scrambled handover command are carried in the handover scheduling information. ;
  • the scrambling module 702 is further configured to: scramble the handover scheduling information obtained by the scheduling module 705 by using a preset second radio network temporary identifier RNTI;
  • the sending module 703 is further configured to send the handover scheduling information that is scrambled by the scrambling module 702 to the UE, where the UE uses the saved second RNTI pair to scramble the
  • the switching scheduling information is decoded, and the physical resource information and the modulation and coding mode information carried in the decoded handover scheduling information are obtained, and the scrambled handover command is received according to the acquired physical resource information and the modulation and coding mode information.
  • the above specific information transmitting apparatus may be located in the eNB.
  • FIG. 8 is a schematic structural diagram of an information receiving apparatus according to an embodiment of the present disclosure, which specifically includes: a first receiving module 801, configured to receive, by using at least two base station eNBs, information that is sent by using the same scrambling code at the same time ;
  • the first decoding module 802 is configured to perform combined decoding on the scrambled information received by the first receiving module 801 by using a pre-saved scrambling code used by the at least two eNBs.
  • the device also includes:
  • the second receiving module 803 is configured to receive configuration information sent by the network management entity before the first receiving module 801 receives information that is sent by the at least two eNBs at the same time and scrambled by the same scrambling code. Saving, the configuration information carries the first scrambling code information and is used for determining reception Parameter information of the receiving moment of the paging message;
  • the first receiving module 801 is specifically configured to: determine, according to the parameter information carried in the configuration information, a receiving moment of receiving a paging message, and receive at least two eNBs to send at the same time at the determined receiving moment. a paging message scrambled with the same scrambling code;
  • the first decoding module 802 is specifically configured to perform combined decoding on the received scrambled paging messages by using the first scrambling code carried in the configuration information.
  • the device also includes:
  • the third receiving module 804 is configured to: after receiving, by the first receiving module 801, at least two eNBs send the same scrambled scrambled paging message at the same time, receive the at least two eNBs to send The paging scheduling information scrambled by the preset first wireless network temporary identification code RNTI;
  • the second decoding module 805 is configured to: use the saved first RNTI to decode the scrambled paging scheduling information received by the third receiving module 804, and obtain the decoded paging scheduling information to carry Physical resource information and modulation and coding mode information;
  • the first receiving module 801 is specifically configured to: according to the physical resource information acquired by the second decoding module 805, receive at least two eNBs at the same time in the determined receiving time on the corresponding physical resource. And using the same scrambling code scrambled paging message, and demodulating the received scrambled paging message according to the modulation and coding mode information acquired by the second decoding module 805.
  • the device also includes:
  • the second receiving module 803 is configured to receive and save the second scrambling code information sent by the source cell eNB, where the first receiving module 801 is configured to receive the source cell eNB and the target cell eNB at the same time. a handover command that is scrambled by the second scrambling code; wherein, the cell currently serving the UE is a source cell, and the cell to which the UE is to be handed over is a target cell;
  • the first decoding module 802 is specifically configured to: perform, by using the second scrambling code received by the second receiving module 803, to perform combined decoding on each scrambled switching command received by the first receiving module 801. .
  • the device also includes:
  • the third receiving module 804 is configured to receive, before the first receiving module 801, the source cell eNB and the target cell eNB send the switching command after the second scrambling code is scrambled at the same time, And the handover scheduling information that is buffered by the source cell eNB and the target cell eNB by using a preset second radio network temporary identifier RNTI;
  • the second decoding module 805 is configured to: after the second RNTI received by the second receiving module 803, decode the scrambled handover scheduling information, and obtain physical resource information carried in the decoded handover scheduling information. And modulation coding mode information;
  • the first receiving module 801 is specifically configured to receive, according to the physical resource information acquired by the second decoding module 805, the source cell eNB and the target cell eNB at the same time on the corresponding physical resource. And using the switching command scrambled by the second scrambling code, and demodulating the received scrambled switching command according to the modulation and coding mode information acquired by the second decoding module 805.
  • the above information receiving apparatus may be located in the UE.
  • FIG. 9 is a schematic structural diagram of an information transmission system according to an embodiment of the present invention, including at least two base stations eNB901 and user equipment UE902;
  • the at least two eNBs 901 are configured to obtain the information to be sent to the UE 902, and use the same scrambling code to scramble the information to be sent to the UE 902, and deliver the scrambled information to the UE 902 at the same time;
  • the UE 902 is configured to receive, after the at least two eNBs 901 transmit the same scrambling code, the information scrambled by the same scrambling code, and use the pre-stored scrambling codes used by the at least two eNBs 901 to receive the received The scrambled information is combined and decoded.
  • FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present disclosure, which specifically includes:
  • the receiver 1001 is configured to obtain information to be sent to the user equipment UE.
  • the signal processor 1002 is coupled to the receiver 1001 and the transmitter 1003, and is configured to scramble the information to be sent to the UE obtained by the receiver 1001 by using an agreed scrambling code, where The scrambling code used by the agreed scrambling code and other base station eNBs for scrambling the information to be sent to the UE The same code;
  • the transmitter 1003 is configured to send the information scrambled by the signal processor 1002 to the UE at an agreed time, where the agreed time is the same as the time when the other eNB sends the scrambled information to the UE.
  • FIG. 11 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure, which specifically includes:
  • the receiver 1101 is configured to receive information that is sent by the at least two base station eNBs and is scrambled by the same scrambling code at the same time;
  • the decoder 1102 is coupled to the receiver 1101, and is configured to combine and decode the scrambled information received by the receiver 1101 by using a scrambling code used by the at least two eNBs stored in advance.
  • An embodiment of the present invention provides a method, an apparatus, and an information transmission system for transmitting and receiving information, where at least two eNBs obtain information to be sent to a UE, and use the same scrambling code to add information to be sent to the UE. Disturb, and deliver the scrambled information to the UE at the same time.
  • the UE can receive at least two information scrambled by the same scrambling code, so The foregoing method provided by the embodiment of the present invention can improve the accuracy of the information sent by the receiving eNB when the UE is located at the cell edge, compared to the method in the prior art that the UE can only receive one of the scrambled information.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the application can be in the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware.
  • the application can be in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Abstract

一种信息发送和接收方法、装置及信息传输系统，用以解决现有技术中当UE位于小区边缘时不能准确的接收到eNB发送的信息的问题。该方法至少两个eNB获得要向UE下发的信息，采用相同的扰码对要向UE下发的信息进行加扰，并在相同的时刻向UE下发加扰后的信息。由于上述方法至少两个eNB在相同的时刻向UE下发采用相同的扰码加扰后的信息，从而UE可接收到至少两个采用相同的扰码加扰后的信息，因此，相比于现有技术中UE只能接收一个加扰后的信息的方法，本发明实施例提供的上述方法当UE位于小区边缘时，可提高接收eNB发送的信息的准确性。

Description

一种信息发送和接收方法、 装置及信息传输系统 技术领域
本发明涉及通信技术领域， 尤指一种信息发送和接收方法、 装置及信息 传输系统。 背景技术
目前，在无线通信系统中，基站（ evolved Node B , eNB )与用户设备（ User Equipment, UE )之间往往需要进行频繁的信息发送和接收。
如， 当 UE作为被叫时， 该 UE所在的跟踪区 （ Tracking Area , ΤΑ ) 中的 每个 eNB需要广播携带该 UE的标识的寻呼消息， 该 UE接收到携带自身标 识的寻呼消息后， 则返回寻呼响应， 建立会话连接； 或者， 某个小区的系统 信息 （包括该小区的频点、 接入资源等）发生改变时， 该小区的 eNB需要广 播携带该小区更新后的系统信息的寻呼消息， UE接收到该寻呼消息后， 则相 应更新自身保存的该小区的系统信息， 如果涉及多个小区的系统消息发生改 变， 所述多个小区的 eNB均需要广播携带该小区更新后的系统信息的寻呼消 息； 或者， TA 中的每个 eNB 广播携带地震海嘯告警系统（Earthquake and Tsunami Warning System , ETWS )信息的寻呼信息， UE接收到寻呼消息后， 则读取该寻呼消息中携带的 ETWS信息。
又如， 当 UE从源小区切换到目标小区时， UE先向源小区 eNB (以下将 源小区 eNB称为 SeNB )上报测量报告， SeNB根据 UE上报的测量报告进行 切换判决，并向目标小区 eNB (以下将目标小区 eNB称为 TeNB)发送切换准备 请求消息， 然后 TeNB向 SeNB发送切换准备确认消息， 该消息里携带切换命 令， 最后 SeNB向 UE下发切换命令， UE接收到切换命令后， 则切换到目标 小区。
然而， 在现有技术中， eNB向 UE发送信息时， 往往是单独发送的， 即 使是如上例中一个 TA中的每个 eNB都广播寻呼消息， 但每个 eNB广播寻呼 消息时所基于的扰码均各不相同， 从而 UE在同一时刻也只能接收一个 eNB 广播的寻呼消息， 因此， 当 UE位于小区边缘时， 会由于信号强度和质量的下 降而导致不能准确的接收到 eNB发送的信息。
具体的， 对于作为被叫的 UE, 如果不能准确的接收寻呼消息， 则会增大 接入延迟，对于因系统信息更新而下发的寻呼消息，如果 UE不能准确的接收， 则会导致 UE不能正常的驻留在系统信息更新的小区， 对于因 ETWS而下发 的寻呼消息， 如果 UE不能准确的接收， 则会酿成灾难性的损失， 对于小区切 换而下发的切换命令， 如果 UE不能准确的接收， 则会导致 UE不能正常切换 到目标小区。 发明内容
本发明实施例提供一种信息发送和接收方法、 装置及信息传输系统， 用 以解决现有技术中当 UE位于小区边缘时不能准确的接收到 eNB发送的信息 的问题。
第一方面， 提供一种信息发送方法， 包括：
至少两个基站 eNB获得要向用户设备 UE下发的信息； 并
釆用相同的扰码对所述要向 UE下发的信息进行加扰； 以及
在相同的时刻向 UE下发加扰后的信息。
结合第一方面，在第一种可能的实现方式中， 当所述要向 UE下发的信息 为寻呼消息时， 所述至少两个 eNB釆用相同的扰码对所述要向 UE下发的信 息进行加扰之前， 所述方法还包括：
所述至少两个 eNB接收网络管理实体发送的配置信息， 所述配置信息中 携带第一扰码信息以及用于确定发送寻呼消息的发送时刻的参数信息；
釆用相同的扰码对所述要向 UE下发的信息进行加扰， 具体包括： 所述至少两个 eNB釆用接收到的所述配置信息中携带的第一扰码对寻呼 消息进行力口扰； 在相同的时刻向 UE下发加扰后的信息， 具体包括：
所述至少两个 eNB根据所述配置信息中携带的所述参数信息确定发送寻 呼消息的发送时刻， 并在确定出的发送时刻向 UE下发加扰后的寻呼消息。
结合第一种可能的实现方式， 在第二种可能的实现方式中， 在相同的时 刻向 UE下发加扰后的信息之前， 所述方法还包括：
所述至少两个 eNB将发送所述加扰后的寻呼消息所使用的物理资源信息 以及调制编码方式信息携带在寻呼调度信息中； 并
釆用预设的第一无线网络临时标识码 RNTI对所述寻呼调度信息进行加 扰； 以及
将加扰后的寻呼调度信息下发给所述 UE, 用于使所述 UE釆用保存的所 述第一 RNTI对加扰后的寻呼调度信息解码，获取解码后的寻呼调度信息中携 带的物理资源信息和调制编码方式信息， 并根据获取的物理资源信息和调制 编码方式信息接收加扰后的寻呼消息。
结合第一方面，在第三种可能的实现方式中， 当所述要向 UE下发的信息 为切换命令时， 所述至少两个 eNB包括源小区 eNB和目标小区 eNB;
至少两个 eNB获得要向 UE下发的信息， 具体包括：
所述源小区 eNB生成切换准备请求信息，并向所述目标小区 eNB发送所 述切换准备请求信息， 其中， 所述切换准备请求信息中携带第二扰码信息以 及发送切换命令的发送时刻信息；
所述目标小区 eNB接收到所述切换准备请求信息后， 生成携带切换请求 的切换准备确认信息， 并将所述切换准备确认信息返回源小区 eNB;
所述源小区 eNB将接收到的所述切换准备确认信息中携带的切换请求作 为获得的要向 UE下发的信息；
釆用相同的扰码对所述要向 UE下发的信息进行加扰， 具体包括： 所述源小区 eNB和所述目标小区 eNB釆用所述切换准备请求信息中携带 的第二扰码对所述切换命令进行加扰；
在相同的时刻向 UE下发加扰后的信息， 具体包括： 所述源小区 eNB和所述目标小区 eNB在所述切换准备请求信息中携带的 发送时刻向 UE下发加扰后的切换命令。
结合第三种可能的实现方式， 在第四种可能的实现方式中， 至少两个基 站 eNB获得要向用户设备 UE下发的信息之前， 所述方法还包括：
所述源小区 eNB将所述第二扰码信息下发给所述 UE保存。
结合第三种或第四种可能的实现方式， 在第五种可能的实现方式中， 在 相同的时刻向 UE下发加扰后的信息之前， 所述方法还包括：
所述源小区 eNB和目标小区 eNB将发送所述加扰后的切换命令所使用的 物理资源信息以及调制编码方式信息携带在切换调度信息中； 并
釆用预设的第二无线网络临时标识码 RNTI对所述切换调度信息进行加 扰； 以及
将加扰后的切换调度信息下发给所述 UE, 用于使所述 UE釆用保存的所 述第二 RNTI对加扰后的切换调度信息解码，获取解码后的切换调度信息中携 带的物理资源信息和调制编码方式信息， 并根据获取的物理资源信息和调制 编码方式信息接收加扰后的切换命令。
第二方面， 提供一种信息接收方法， 包括：
用户设备 UE接收至少两个基站 eNB在相同的时刻下发的釆用相同的扰 码加扰后的信息； 并
釆用预先保存的所述至少两个 eNB所使用的扰码， 对接收到的各加扰后 的信息进行合并解码。
结合第二方面， 在第一种可能的实现方式中， UE接收至少两个 eNB在 相同的时刻下发的釆用相同的扰码加扰后的信息之前， 所述方法还包括： 所述 UE接收网络管理实体发送的配置信息并保存，所述配置信息中携带 第一扰码信息以及用于确定接收寻呼消息的接收时刻的参数信息；
UE接收至少两个 eNB在相同的时刻下发的釆用相同的扰码加扰后的信 息， 具体包括：
所述 UE根据所述配置信息中携带的所述参数信息确定接收寻呼消息的 接收时刻， 并在确定出的接收时刻接收至少两个 eNB在相同的时刻下发的釆 用相同的扰码加扰后的寻呼消息；
釆用预先保存的所述至少两个 eNB所使用的扰码， 对接收到的各加扰后 的信息进行合并解码， 具体包括：
所述 UE釆用所述配置信息中携带的第一扰码，对接收到的各加扰后的寻 呼消息进行合并解码。
结合第一种可能的实现方式，在第二种可能的实现方式中， 所述 UE在确 定出的接收时刻接收至少两个 eNB在相同的时刻下发的釆用相同的扰码加扰 后的寻呼消息之前， 所述方法还包括：
所述 UE接收至少两个 eNB发送的釆用预设的第一无线网络临时标识码 RNTI加扰后的寻呼调度信息； 并
釆用保存的所述第一 RNTI对所述加扰后的寻呼调度信息解码，获取解码 后的寻呼调度信息中携带的物理资源信息以及调制编码方式信息；
所述 UE在确定出的接收时刻接收至少两个 eNB在相同的时刻下发的釆 用相同的扰码加扰后的寻呼消息， 具体包括：
所述 UE根据获取到的物理资源信息，在相应的物理资源上，在确定出的 接收时刻接收至少两个 eNB在相同的时刻下发的釆用相同的扰码加扰后的寻 呼消息， 并根据获取到的调制编码方式信息， 对接收到的各加扰后的寻呼消 息进行解调。
结合第二方面， 在第三种可能的实现方式中， UE接收至少两个 eNB在 相同的时刻下发的釆用相同的扰码加扰后的信息之前， 所述方法还包括： 所述 UE接收源小区 eNB发送的第二扰码信息并保存；
UE接收至少两个 eNB在相同的时刻下发的釆用相同的扰码加扰后的信 息， 具体包括：
所述 UE接收所述源小区 eNB和目标小区 eNB在相同的时刻下发的釆用 所述第二扰码加扰后的切换命令；其中，当前为所述 UE服务的小区为源小区， 所述 UE要切换到的小区为目标小区； 釆用预先保存的所述至少两个 eNB所使用的扰码， 对接收到的各加扰后 的信息进行合并解码， 具体包括：
所述 UE 釆用所述第二扰码对接收到的各加扰后的切换命令进行合并解 码。
结合第三种可能的实现方式，在第四种可能的实现方式中， 所述 UE接收 所述源小区 eNB和目标小区 eNB在相同的时刻下发的釆用所述第二扰码加扰 后的切换命令之前， 所述方法还包括：
所述 UE接收所述源小区 eNB和所述目标小区 eNB发送的釆用预设的第 二无线网络临时标识码 RNTI加扰后的切换调度信息； 并
釆用保存的所述第二 RNTI对所述加扰后的切换调度信息解码，获取解码 后的切换调度信息中携带的物理资源信息以及调制编码方式信息；
所述 UE接收所述源小区 eNB和目标小区 eNB在相同的时刻下发的釆用 所述第二扰码加扰后的切换命令， 具体包括：
所述 UE根据获取到的物理资源信息，在相应的物理资源上接收所述源小 区 eNB和目标小区 eNB在相同的时刻下发的釆用所述第二扰码加扰后的切换 命令， 并根据获取到的调制编码方式信息， 对接收到的各加扰后的切换命令 进行解调。
第三方面， 提供一种信息发送装置， 包括：
获取模块， 用于获得要向用户设备 UE下发的信息；
加扰模块，用于釆用约定的扰码对所述获取模块获得的所述要向 UE下发 的信息进行加扰， 其中， 所述约定的扰码与其他基站 eNB对所述要向 UE下 发的信息加扰所釆用的扰码相同；
发送模块， 用于在约定的时刻向 UE下发所述加扰模块加扰后的信息，其 中， 所述约定的时刻与其他 eNB向 UE下发加扰后的信息的时刻相同。
结合第三方面， 在第一种可能的实现方式中， 所述装置还包括： 接收模块，用于当所述获取模块获得的所述要向 UE下发的信息为寻呼消 息时，在所述加扰模块对所述要向 UE下发的信息进行加扰之前，接收网络管 理实体发送的配置信息， 所述配置信息中携带第一扰码信息以及用于确定发 送寻呼消息的发送时刻的参数信息；
所述加扰模块具体用于， 釆用接收到的所述配置信息中携带的第一扰码 对寻呼消息进行加扰；
所述发送模块具体用于， 根据所述配置信息中携带的所述参数信息确定 发送寻呼消息的发送时刻，并在确定出的发送时刻向 UE下发加扰后的寻呼消 息。
结合第一种可能的实现方式， 在第二种可能的实现方式中， 所述装置还 包括：
调度模块， 用于在所述发送模块向 UE下发加扰后的信息之前，将发送所 述加扰后的寻呼消息所使用的物理资源信息以及调制编码方式信息携带在寻 呼调度信息中；
所述加扰模块还用于，釆用预设的第一无线网络临时标识码 RNTI对所述 调度模块得到的所述寻呼调度信息进行加扰；
所述发送模块还用于， 将所述加扰模块加扰后的寻呼调度信息下发给所 述 UE, 用于使所述 UE釆用保存的所述第一 RNTI对加扰后的寻呼调度信息 解码， 获取解码后的寻呼调度信息中携带的物理资源信息和调制编码方式信 息， 并根据获取的物理资源信息和调制编码方式信息接收加扰后的寻呼消息。
结合第三方面， 在第三种可能的实现方式中， 所述获取模块具体用于， 生成切换准备请求信息， 并先目标小区 eNB发送所述切换准备请求信息， 其 中， 所述切换准备请求信息中携带第二扰码信息以及发送切换命令的发送时 刻信息， 接收所述目标小区 eNB返回的携带切换请求的切换准备确认信息， 将接收到的所述切换准备确认信息中携带的切换请求作为获得的要向 UE 下 发的信息；
所述加扰模块具体用于， 釆用所述切换准备请求信息中携带的第二扰码 对所述切换命令进行加扰；
所述发送模块具体用于， 在所述切换准备请求信息中携带的发送时刻向 UE下发加扰后的切换命令。
结合第三种可能的实现方式， 在第四种可能的实现方式中， 所述发送模 块还用于，在所述获取模块获得要向 UE下发的信息之前，将所述第二扰码信 息发送给所述 UE保存。
结合第三种或第四种可能的实现方式， 在第五种可能的实现方式中， 所 述装置还包括：
调度模块， 用于在所述发送模块向 UE下发加扰后的信息之前，将发送所 述加扰后的切换命令所使用的物理资源信息以及调制编码方式信息携带在切 换调度信息中；
所述加扰模块还用于，釆用预设的第二无线网络临时标识码 RNTI对所述 调度模块得到的所述切换调度信息进行加扰；
所述发送模块还用于， 将所述加扰模块加扰后的切换调度信息下发给所 述 UE, 用于使所述 UE釆用保存的所述第二 RNTI对加扰后的切换调度信息 解码， 获取解码后的切换调度信息中携带的物理资源信息和调制编码方式信 息， 并根据获取的物理资源信息和调制编码方式信息接收加扰后的切换命令。
第四方面， 提供一种信息接收装置， 包括：
第一接收模块， 用于接收至少两个基站 eNB在相同的时刻下发的釆用相 同的扰码加扰后的信息；
第一解码模块， 用于釆用预先保存的所述至少两个 eNB所使用的扰码， 对所述第一接收模块接收到的各加扰后的信息进行合并解码。
结合第四方面， 在第一种可能的实现方式中， 所述装置还包括： 第二接收模块， 用于在所述第一接收模块接收至少两个 eNB在相同的时 刻下发的釆用相同的扰码加扰后的信息之前， 接收网络管理实体发送的配置 信息并保存， 所述配置信息中携带第一扰码信息以及用于确定接收寻呼消息 的接收时刻的参数信息；
所述第一接收模块具体用于， 根据所述配置信息中携带的所述参数信息 确定接收寻呼消息的接收时刻， 并在确定出的接收时刻接收至少两个 eNB在 相同的时刻下发的釆用相同的扰码加扰后的寻呼消息；
所述第一解码模块具体用于， 釆用所述配置信息中携带的第一扰码， 对 接收到的各加扰后的寻呼消息进行合并解码。
结合第一种可能的实现方式， 在第二种可能的实现方式中， 所述装置还 包括：
第三接收模块， 用于在所述第一接收模块接收至少两个 eNB在相同的时 刻下发的釆用相同的扰码加扰后的寻呼消息之前， 接收至少两个 eNB发送的 釆用预设的第一无线网络临时标识码 RNTI加扰后的寻呼调度信息；
第二解码模块，用于釆用保存的所述第一 RNTI对所述第三接收模块接收 到的所述加扰后的寻呼调度信息解码， 获取解码后的寻呼调度信息中携带的 物理资源信息以及调制编码方式信息；
所述第一接收模块具体用于， 根据所述第二解码模块获取到的物理资源 信息， 在相应的物理资源上， 在确定出的接收时刻接收至少两个 eNB在相同 的时刻下发的釆用相同的扰码加扰后的寻呼消息， 并根据所述第二解码模块 获取到的调制编码方式信息， 对接收到的各加扰后的寻呼消息进行解调。
结合第四方面， 在第三种可能的实现方式中， 所述装置还包括： 第二接收模块， 用于接收源小区 eNB发送的第二扰码信息并保存； 所述第一接收模块具体用于，接收所述源小区 eNB和目标小区 eNB在相 同的时刻下发的釆用所述第二扰码加扰后的切换命令； 其中， 当前为所述 UE 服务的小区为源小区， 所述 UE要切换到的小区为目标小区；
所述第一解码模块具体用于， 釆用所述第二接收模块接收到的所述第二 扰码对所述第一接收模块接收到的各加扰后的切换命令进行合并解码。
结合第三种可能的实现方式， 在第四种可能的实现方式中， 所述装置还 包括：
第三接收模块， 用于在所述第一接收模块接收所述源小区 eNB和目标小 区 eNB在相同的时刻下发的釆用所述第二扰码加扰后的切换命令之前， 接收 所述源小区 eNB和所述目标小区 eNB发送的釆用预设的第二无线网络临时标 识码 RNTI加扰后的切换调度信息；
第二解码模块，用于釆用所述第二接收模块接收到的所述第二 RNTI对所 述加扰后的切换调度信息解码， 获取解码后的切换调度信息中携带的物理资 源信息以及调制编码方式信息；
所述第一接收模块具体用于， 根据所述第二解码模块获取到的物理资源 信息，在相应的物理资源上接收所述源小区 eNB和目标小区 eNB在相同的时 刻下发的釆用所述第二扰码加扰后的切换命令， 并根据所述第二解码模块获 取到的调制编码方式信息， 对接收到的各加扰后的切换命令进行解调。
第五方面， 提供一种信息传输系统， 包括至少两个基站 eNB和用户设备 UE; 其中
至少两个 eNB, 用于获得要向 UE下发的信息， 釆用相同的扰码对所述 要向 UE下发的信息进行加扰， 在相同的时刻向 UE下发加扰后的信息；
UE,用于接收至少两个 eNB在相同的时刻下发的釆用相同的扰码加扰后 的信息， 釆用预先保存的所述至少两个 eNB所使用的扰码， 对接收到的各加 扰后的信息进行合并解码。
第六方面， 提供一种基站， 包括：
接收器， 用于获得要向用户设备 UE下发的信息；
信号处理器， 与所述接收器和发射器耦合， 用于釆用约定的扰码对所述 接收器获得的所述要向 UE下发的信息进行加扰， 其中， 所述约定的扰码与其 他基站 eNB对所述要向 UE下发的信息加扰所釆用的扰码相同；
发射器，用于在约定的时刻向 UE下发所述信号处理器加扰后的信息，其 中， 所述约定的时刻与其他 eNB向 UE下发加扰后的信息的时刻相同。
第七方面， 提供一种用户设备， 包括：
接收器， 用于接收至少两个基站 eNB在相同的时刻下发的釆用相同的扰 码加扰后的信息；
解码器， 与所述接收器耦合， 用于釆用预先保存的所述至少两个 eNB所 使用的扰码， 对所述接收器接收到的各加扰后的信息进行合并解码。 本发明实施例提供一种信息发送和接收方法、 装置及信息传输系统， 该 方法至少两个 eNB获得要向 UE下发的信息， 釆用相同的扰码对要向 UE下 发的信息进行加扰， 并在相同的时刻向 UE下发加扰后的信息。 由于上述方法 至少两个 eNB在相同的时刻向 UE下发釆用相同的扰码加扰后的信息， 从而 UE可接收到至少两个釆用相同的扰码加扰后的信息， 因此， 相比于现有技术 中 UE 只能接收一个加扰后的信息的方法， 本发明实施例提供的上述方法当 UE位于小区边缘时， 可提高接收 eNB发送的信息的准确性。 附图说明
图 1为本发明实施例提供的信息发送过程；
图 2为本发明实施例提供的基于图 1的信息接收过程；
图 3为本发明实施例提供的寻呼消息发送过程；
图 4为本发明实施例提供的基于图 3的寻呼消息接收过程；
图 5为本发明实施例提供的切换命令发送过程；
图 6为本发明实施例提供的基于图 5的切换命令接收过程；
图 7为本发明实施例提供的信息发送装置结构示意图；
图 8为本发明实施例提供的信息接收装置结构示意图；
图 9为本发明实施例提供的信息传输系统结构示意图；
图 10为本发明实施例提供的基站结构示意图；
图 11为本发明实施例提供的用户设备结构示意图。 具体实施方式
本发明实施例提供一种信息发送和接收方法、 装置及信息传输系统， 该 方法至少两个 eNB获得要向 UE下发的信息， 釆用相同的扰码对要向 UE下 发的信息进行加扰， 并在相同的时刻向 UE下发加扰后的信息。 由于上述方法 至少两个 eNB在相同的时刻向 UE下发釆用相同的扰码加扰后的信息，从而， UE在接收到各 eNB下发的加扰后的信息后， 可釆用同一个扰码进行合并解 码， 因此， 当 UE位于小区边缘时， 仍可准确的接收到 eNB发送的信息。 本文中描述的技术可用于各种通信系统， 例如当前 2G, 3G通信系统和 下一代通信系统， 例如全球移动通信系统（GSM, Global System for Mobile communications ), 码分多址 ( CDMA, Code Division Multiple Access ) 系统, 时分多址 （TDMA, Time Division Multiple Access ) 系统， 宽带码分多址 ( WCDMA, Wideband Code Division Multiple Access Wireless ), 频分多址 ( FDMA , Frequency Division Multiple Addressing ) 系统, 正交频分多址 ( OFDMA , Orthogonal Frequency-Division Multiple Access ) 系统, 单载波 FDMA ( SC-FDMA ) 系统， 通用分组无线业务（ GPRS , General Packet Radio Service ) 系统， 长期演进（LTE, Long Term Evolution ) 系统， 以及其他此类 通信系统。
本文中结合用户设备和 /或基站来描述各种方面。
用户设备， 可以是无线终端， 无线终端可以是指向用户提供语音和 /或数 据连通性的设备， 具有无线连接功能的手持式设备、 或连接到无线调制解调 器的其他处理设备。 无线终端可以经无线接入网 （例如， RAN, Radio Access Network )与一个或多个核心网进行通信， 无线终端可以是移动终端， 如移动 电话（或称为"蜂窝"电话）和具有移动终端的计算机， 例如， 可以是便携式、 袖珍式、 手持式、 计算机内置的或者车载的移动装置， 它们与无线接入网交 换语言和 /或数据。 1"列 口,个人通信业务 ( PCS, Personal Communication Service ) 电话、 无绳电话、 会话发起协议（ SIP )话机、 无线本地环路（WLL, Wireless Local Loop )站、 个人数字助理（PDA, Personal Digital Assistant )等设备。 无线终端也可以称为系统、 订户单元（Subscriber Unit )、 订户站（Subscriber Station )，移动站（ Mobile Station )、移动台（ Mobile )、远程站（ Remote Station )、 接入点 （Access Point ), 远程终端 （Remote Terminal ), 接入终端 （Access Terminal )、用户终端（ User Terminal )、用户代理（ User Agent )、用户设备 ( User Device )、 或用户装备 ( User Equipment )。
基站 （例如， 接入点）可以是指接入网中在空中接口上通过一个或多个 扇区与无线终端通信的设备。 基站可用于将收到的空中帧与 IP分组进行相互 转换， 作为无线终端与接入网的其余部分之间的路由器， 其中接入网的其余 部分可包括网际协议（IP )网络。基站还可协调对空中接口的属性管理。例如， 基站可以是 GSM或 CDMA中的基站（ BTS, Base Transceiver Station ), 也可 以是 WCDMA中的基站 （NodeB ), 还可以是 LTE中的演进型基站（NodeB 或 eNB或 e-NodeB, evolutional Node B ), 本申请并不限定。
另外， 本文中术语"系统，，和"网络"在本文中常被可互换使用。 本文中术语 "和 /或"， 仅仅是一种描述关联对象的关联关系， 表示可以存在三种关系， 例 如， A和 /或 B, 可以表示： 单独存在 A, 同时存在 A和 B, 单独存在 B这三 种情况。 另外， 本文中字符 "/" , 一般表示前后关联对象是一种 "或" 的关系。
下面结合说明书附图， 对本发明实施例的方案进行详细说明。
在本发明实施例中， 至少两个 eNB釆用相同的扰码对要向 UE下发的信 息进行加扰， 并在相同的时刻向 UE下发加扰后的信息， 相应的， UE则接收 至少两个 eNB下发的各加扰后的信息，并釆用预先保存的该至少两个 eNB所 使用的扰码， 对接收到的各加扰后的信息进行合并解码， 如图 1所示。
实施例一：
图 1为本发明实施例提供的信息发送过程， 具体包括以下步骤：
S101 : 至少两个 eNB获得要向 UE下发的信息。
在本发明实施例中，要向 UE下发的信息包括但不限于寻呼消息、切换命 令以及其他信令消息等， 该至少两个 eNB可以从核心网或其他网络实体（如 操作维护管理实体 )获得要向 UE下发的信息，还可以通过所述至少两个 eNB 之间的交互获得要向 UE下发的信息， 也可以自行生成要向 UE下发的信息。 其中， 该至少两个 eNB可以是一个 TA中的各小区的 eNB, 也可以是预先配 置的包含至少两个 eNB的区域中的各 eNB, 本发明对此不做限定。 其中可以 理解的， 本发明实施例中的 eNB可以替换为小区， 本发明对此不做限定。
S102: 釆用相同的扰码对要向 UE下发的信息进行加扰。
在本发明实施例中， 该至少两个 eNB可预先保存要使用的扰码， 其中， 各 eNB预先保存的扰码是相同的。 该预先保存的扰码可以是由网络管理实体 预先统一向各 eNB发送的扰码， 也可以是由各 eNB约定的， 也可以固定在传 输协议中。 各 eNB获得了要向 UE下发的信息后， 则可釆用预先保存的扰码， 对要向 UE下发的信息进行加扰。
S103: 在相同的时刻向 UE下发加扰后的信息。
在本发明实施例中， 各 eNB向 UE下发加扰后的信息的发送时刻可以是 由网络管理实体预先统一向各 eNB发送的， 也可以由各 eNB约定的， 也可以 固定在传输协议中。 各 eNB釆用相同的扰码对要向 UE下发的信息进行加扰 后， 则可在由网络管理实体预先发送的发送时刻， 或者在各 eNB预先约定的 发送时刻， 向 UE下发加扰后的信息。
相应的， UE接收各 eNB下发的加扰后的信息的过程如图 2所示。
图 2为本发明实施例提供的基于图 1 的信息接收过程， 具体包括以下步 骤：
S201 : UE接收至少两个 eNB在相同的时刻下发的釆用相同的扰码加扰 后的信息。
在本发明实施例中，各 eNB接收到核心网或其他网络实体发送的要向 UE 下发信息的发送时刻后，或者各 eNB约定了要向 UE下发信息的发送时刻后， 可将该发送时刻通知给 UE, UE则在通知的时刻接收各 eNB下发的釆用相同 的扰码加扰后的信息。
S202: 釆用预先保存的至少两个 eNB所使用的扰码， 对接收到的各加扰 后的信息进行合并解码。
在本发明实施例中， 各 eNB接收到核心网或其他网络实体发送的要使用 的扰码后， 或者各 eNB约定了要使用的扰码后， 可将使用的扰码通知给 UE, UE则在接收到各 eNB下发的加扰后的信息后， 釆用通知的该扰码对接收到 的各加扰后的信息进行合并解码。 具体的， UE可先将接收到的各加扰后的信 息进行合并， 再釆用通知的该扰码对合并后的信息进行解码， 或者， 也可先 釆用通知的该扰码对接收到的各加扰后的信息分别进行解码， 如果没有一个 加扰后的信息可以解码成功， 则再对各加扰后的信息进行合并， 并解码， 在 此不做限定。
通过上述方法， 至少两个 eNB可在相同的时刻向 UE下发釆用相同的扰 码加扰后的信息， 从而， UE可在接收到各 eNB下发的加扰后的信息后， 釆 用同一个扰码进行合并解码， 因此， 即使 UE位于小区边缘， 仍可准确的接收 到 eNB发送的信息。 事实上， 各 eNB使用相同的扰码对要下发的信息进行加 扰， 并在相同的时刻发送加扰后的信息， 对于 UE而言， 其接收到的各加扰后 的信息就相当于一个多径信号， UE只需要对该多径信号进行处理即可。
上述信息发送和接收方法可应用于至少两个 eNB与 UE进行信息交互的 应用场景， 如， 一个 TA中的各 eNB向 UE下发寻呼消息的场景， 或源小区 eNB和目标小区 eNB向 UE下发切换命令的场景， 以下进行详细说明。
实施例二：
实施例二是以各 eNB向 UE下发寻呼消息的场景为例， 对本发明实施例 提供的信息发送和接收方法进行的详细说明， 如图 3所示。
图 3为本发明实施例提供的寻呼消息发送过程， 具体包括以下步骤：
S301 : 至少两个 eNB接收网络管理实体发送的配置信息， 该配置信息中 携带第一扰码信息以及用于确定发送寻呼消息的发送时刻的参数信息。
在本发明实施例中， 网络管理实体可预先向各 eNB下发携带第一扰码信 息和用于确定发送时刻的参数信息的配置信息。 具体的， 网络管理实体可向 各 eNB下发携带第一扰码信息、 寻呼周期 T以及用于确定寻呼分组数和每无 线帧寻呼子帧数的参数 ( nB )的配置信息。各 eNB则保存接收到的配置信息， 其中， 各 eNB根据该配置信息中的寻呼周期 T和 nB即可确定发送寻呼消息 的发送时刻。
以 FDD系统为例 , 在 UE作被叫的场景， 假设 UE ID为 0 , 寻呼周期 T 为 32个无线帧（即 320毫秒）， nB为 2倍的寻呼周期， 则各 eNB可确定发送 寻呼消息的寻呼帧号为满足如下公式的帧号： SFN mod T= (T div min(T, nB))*(UE_ID mod min(T, nB)) , 即寻呼帧号为 0 , 32, 64等， 同时确定发送寻 呼消息的寻呼子帧号为满足如下公式的 i— s对应的子帧号： i— s = floor(UE_ID/ min(T, nB)) mod max(l, nB/T), 计算出 i_s = 0, 对应的寻呼子帧号为 4, 综合 上述寻呼帧和寻呼子帧的计算， 可以确定寻呼消息的发送时刻为 0 号帧的 4 号子帧， 32号帧的 4号子帧， 64号帧的 4号子帧等。 如果寻呼周期 T为 32 个无线帧， nB为 1倍的寻呼周期， 则各 eNB可确定发送寻呼消息的发送时刻 为 0号帧的 9号子帧， 32号帧的 9号子帧， 64号帧的 9号子帧等。
当然，该第一扰码、发送寻呼消息的发送时刻也可以由各 eNB预先约定， 或者固定在协议中， 本发明实施例仅是以由网络管理实体统一下发为例进行 说明。
当然， 如果是系统信息更新或 ETWS信息的场景， eNB需要在所有可能 的寻呼消息发送时刻发送寻呼消息， 以便 eNB下所有 UE都能接收到该寻呼 消息， 从而获得更新后的系统信息或 ETWS信息。
S302: 该至少两个 eNB获得要向 UE下发的寻呼消息。
在本发明实施例中， 各 eNB可从核心网或其他网络实体中获得要下发的 寻呼消息， 如， 当 UE作为被叫时， 该 UE所在的 TA中的各 eNB则可从核心 网获得携带该 UE的标识的寻呼消息； 或者， 当该 TA中的所有多个小区的系 统信息发生改变时， 该 TA中的各 eNB可从核心网获得携带该小区更新后的 系统信息的寻呼消息； 或者， 该 TA中的各 eNB可从核心网获得携带 ETWS 信息的寻呼信息。
S303： 釆用接收到的配置信息中携带的第一扰码对该寻呼消息进行加扰。 由于各 eNB已经保存了携带同一个扰码（即， 第一扰码） 的配置信息， 因此， 各 eNB获得了要下发的寻呼消息后， 则可釆用该配置信息中携带的第 一扰码， 对该寻呼消息进行加扰。
S304： 根据接收到的配置信息中携带的参数信息确定发送寻呼消息的发 送时刻， 并在确定出的发送时刻向 UE下发加扰后的寻呼消息。
由于各 eNB已经保存了配置信息， 因此， 各 eNB可根据保存的该配置信 息中携带的用于确定发送寻呼消息的发送时刻的参数信息， 确定发送寻呼消 息的发送时刻， 在釆用第一扰码对该寻呼消息进行加扰后， 则可在确定出的 发送时刻， 向 UE下发加扰后的寻呼消息。
相应的， UE接收各 eNB发送的各寻呼消息的过程如图 4所示。
图 4为本发明实施例提供的基于图 3的寻呼消息接收过程， 具体包括以 下步骤：
S401 : UE接收网络管理实体发送的配置信息并保存， 该配置信息中携带 第一扰码信息以及用于确定接收寻呼消息的接收时刻的参数信息。
在本发明实施例中， 网络管理实体可预先通过 eNB向 UE下发携带第一 扰码信息和用于确定接收寻呼消息的接收时刻的参数信息的配置信息。 类似 的， 网络管理实体可通过 eNB向 UE下发携带第一扰码信息、 寻呼周期 T以 及用于确定寻呼分组数和每无线帧寻呼子帧数的参数（nB )的配置信息。 UE 则保存接收到的配置信息， 其中， UE根据该配置信息中的寻呼周期 T和 nB 即可确定接收寻呼消息的接收时刻。
S402: UE根据该配置信息中携带的参数信息确定接收寻呼消息的接收时 刻， 并在确定出的接收时刻接收至少两个 eNB下发的釆用相同的扰码加扰后 的寻呼消息。
由于 UE已经保存了， 因此， UE可根据保存的该配置信息中携带的用于 确定接收寻呼消息的接收时刻的参数信息， 确定接收寻呼消息的接收时刻， 并在确定出的接收时刻， 接收各 eNB下发的釆用相同的扰码加扰后的寻呼消 息。
S403: UE釆用该配置信息中携带的第一扰码， 对接收到的各加扰后的寻 呼消息进行合并解码。
由于 UE已经保存了携带第一扰码的配置信息， 因此， UE接收到各 eNB 下发的加扰后的寻呼消息后， 则可釆用该配置信息中携带的第一扰码， 对接 收到的各加扰后的寻呼消息进行解码。 具体的， UE可先对接收到的各加扰后 的寻呼消息进行合并， 再釆用第一扰码对合并后的寻呼消息进行解码， 或者， 也可先釆用第一扰码分别对各加扰后的寻呼消息进行解码， 如果没有一个加 扰后的寻呼消息可以解码成功， 则再对各加扰后的寻呼消息进行合并， 并解 码， 在此不做限定。
如果 UE合并解码后的寻呼消息中携带该 UE的标识， 则 UE可通过其驻 留小区的 eNB向核心网返回寻呼响应， 建立会话连接； 如果合并解码后的寻 呼消息中携带所在小区更新后的系统信息，则 UE相应更新自身保存的该小区 的系统信息；如果 UE合并解码后的寻呼消息中携带 ETWS信息，则 UE可进 一步读取该 ETWS信息。
进一步的， 在图 3所示的寻呼消息的发送过程中， 各 eNB向 UE下发加 扰后的寻呼消息之前， 还可将发送该加扰后的寻呼消息所使用的物理资源信 息以及调制编码方式信息携带在寻呼调度信息中， 并釆用预设的第一无线网 络临时标识码（RNTI )对该寻呼调度信息进行加扰， 将加扰后的寻呼调度信 息下发给 UE。 其中， 各 eNB发送加扰后的寻呼消息所使用的物理资源以及 调制编码方式也是相同的， 均可由核心网或其他网络管理实体预先向各 eNB 统一下发要使用的物理资源和调制编码方式， 也可由各 eNB预先约定， 也可 以固定在传输协议中。
相应的， UE在接收各 eNB下发的加扰后的寻呼消息之前，可接收各 eNB 下发的釆用该第一 RNTI加扰后的寻呼调度信息，并根据该第一 RNTI对加扰 后的寻呼调度信息解码， 获取解码后的寻呼调度信息中携带的物理资源信息 以及调制编码方式信息。 UE在接收各 eNB下发的加扰后的寻呼消息时， 则 可根据获取到的物理资源信息， 在相应的物理资源上， 并在根据该配置信息 确定出的接收时刻， 接收各 eNB下发的釆用相同的扰码加扰后的寻呼消息， 再根据获取到的调制编码方式信息， 对接收到的各加扰后的寻呼消息进行解 调。
其中，该第一 RNTI可以预先在协议中固定，也可以由核心网或其他网络 管理实体向各 eNB和 UE统一下发， 或者 eNB在获得所述第一 RNTI后发送 给 UE,具体发送方法可以是通过系统广播消息进行发送。可以理解的，各 eNB 是在发送寻呼消息之前获得该第一 RNTI的， UE是在接收寻呼消息之前获得 该第一 RNTI的。 该第一 RNTI可以是现有技术中的 P-RNTI , 也可以是新的 RNTI, 在此不做限定。
以上为本发明实施例提供的各 eNB向 UE下发寻呼消息以及 UE接收寻 呼消息的过程。下面详细说明 UE进行小区切换时 eNB下发切换命令以及 UE 接收切换命令的过程。
实施例三：
实施例三是以各 eNB向 UE下发切换命令的场景为例， 对本发明实施例 提供的信息发送和接收方法进行的详细说明， 如图 5所示。
图 5为本发明实施例提供的切换命令发送过程， 具体包括以下步骤：
S501 : 源小区 eNB将第二扰码信息下发给 UE保存。
在本发明实施例中， 当前为 UE服务的小区为源小区， UE要切换到的小 区为目标小区。 源小区 eNB可在为该 UE服务期间的任意时刻向该 UE下发 第二扰码信息， 其中， 该第二扰码信息是源小区 eNB预先保存的。
S502: 源小区 eNB生成切换准备请求信息， 并向目标小区 eNB发送该切 换准备请求信息。
当 UE要从源小区切换到目标小区时， 先向源小区 eNB上报测量报告， 由源 d、区 eNB进行切换判决。 当源小区 eNB确定切换时， 源 d、区 eNB生成 切换准备请求信息， 并将该切换准备请求信息发送给目标小区 eNB。 其中， 该切换准备请求信息中携带第二扰码信息以及发送切换命令的发送时刻信 息。 当然， 切换准备请求信息中还可以进一步包括发送切换命令所使用的物 理资源和调制编码方式等信息。
另外， 需要说明的是， 对于下发切换命令的发送时刻来说， 该发送时刻 也可由目标小区 eNB向源小区 eNB约定， 即， 目标小区 eNB向源小区 eNB 发送的切换准备确认信息 （即后续的步骤 S503 ) 中携带发送时刻。 但是， 对 切换命令进行加扰的第二扰码必须由源小区 eNB向目标小区 eNB约定，这是 因为第二扰码是源小区 eNB 自身保存的， 而 UE在源小区中时， 源小区 eNB 已经向 UE下发了第二扰码， 如果由目标小区 eNB向源小区 eNB约定扰码， 则后续 UE不能正常解码加扰后的切换命令。
同样， 发送切换命令所使用的物理资源， 调制编码方式等信息也可以由 目标小区 eNB向源小区 eNB约定， 即目标小区 eNB向源小区 eNB发送的切 换准备确认信息 （即后续的步骤 S503 ) 中携带发送切换命令所使用的物理资 源， 调制编码方式等信息。
S503: 目标小区 eNB生成携带切换命令的切换准备确认信息， 并向源小 区 eNB发送该切换准备确认信息。
目标小区 eNB接收到源小区 eNB发送的切换准备请求信息后，生成携带 切换命令的切换准备确认信息， 并返回源小区 eNB, 使源小区 eNB获得该切 换命令。
S504:源小区 eNB和目标小区 eNB釆用该切换准备请求信息中携带的第 二扰码对切换命令进行加扰。
由于源小区 eNB和目标小区 eNB已经约定了加扰所釆用的第二扰码， 因 此，源小区 eNB和目标小区 eNB釆用约定的该第二扰码对切换命令进行加扰。
S505:源小区 eNB和目标小区 eNB在该切换准备请求信息中携带的发送 时刻向 UE下发加扰后的切换命令。
由于源小区 eNB和目标小区 eNB已经约定了发送切换命令的发送时刻， 因此， 源小区 eNB和目标小区 eNB在约定的发送时刻向 UE下发加扰后的切 换命令。
可选的， 如果切换准备请求信息中携带有发送切换命令的物理资源和调 制编码方式信息时，源小区 eNB和目标小区 eNB则可在约定的发送时刻使用 该切换准备请求信息中携带的物理资源和调制编码方式向 UE 下发加扰后的 切换命令。
可以理解的， 当源小区 eNB和目标小区 eNB是同一个 eNB时， 上述切 换准备请求信息和切换准备确认信息的收发是由同一个 eNB实现的。
相应的， UE接收源小区 eNB和目标小区 eNB下发的切换命令的过程如 图 6所示。 图 6为本发明实施例提供的基于图 5的切换命令接收过程， 具体包括以 下步骤：
S601 : UE接收源小区 eNB发送的第二扰码信息并保存。
在本发明实施例中， 当源小区为 UE服务时， UE接收源小区 eNB发送的 第二扰码信息并保存， 以便后续解码切换命令。
S602: UE接收源小区 eNB和目标小区 eNB在相同的时刻下发的釆用第 二扰码加扰后的切换命令。
其中， 源小区 eNB和目标小区 eNB釆用如图 5所示的方法向 UE发送加 扰后的切换命令。
S603: UE釆用预先保存的第二扰码对接收到的各加扰后的切换命令进行 合并解码。
UE接收到源小区 eNB和目标小区 eNB发送的加扰后的切换命令时， 则 可釆用预先保存的第二扰码， 对接收到的各加扰后的切换命令进行合并解码， 并根据合并解码后的切换命令完成小区切换。 具体的， UE可先将接收到的各 加扰后的切换命令进行合并， 再釆用第二扰码对合并后的切换命令进行解码 , 也可以先釆用第二扰码对接收到的各切换命令进行解码， 如果没有一个加扰 后的切换命令可以解码成功， 则再对各加扰后的切换命令进行合并， 并解码， 在此不做限定。
进一步的， 在图 5所示的切换命令发送过程中， 源小区 eNB和目标小区 eNB在向 UE下发加扰后的切换命令之前， 还可将发送该加扰后的切换命令 所使用的物理资源信息以及调制编码方式信息 （所使用的物理资源和调制编 码方式信息是源小区 eNB通过切换准备请求信息与目标小区 eNB约定的， 当 然， 也可以由目标小区 eNB通过切换准备确认信息与源小区 eNB约定）携带 在切换调度信息中， 并釆用预设的第二 RNTI对该切换调度信息进行加扰，再 将加扰后的切换调度信息下发给 UE。 相应的， UE在接收加扰后的切换命令 之前， 则接收源小区 eNB和目标小区 eNB发送的釆用预设的第二 RNTI加扰 后的切换调度信息， 并釆用保存的第二 RNTI对加扰后的切换调度信息解码， 获取解码后的切换调度信息中携带的物理资源信息和调制编码方式信息， 再 根据获取到的物理资源信息， 在相应的物理资源上接收源小区 eNB和目标小 区 eNB在相同时刻下发的釆用第二扰码加扰后的切换命令， 再根据获取到的 调制编码方式信息， 对接收到的各加扰后的切换命令进行解调。
其中， 该第二 RNTI可由核心网或其他网络管理实体向各 eNB和 UE统 一下发， 或者， 也可以是由核心网或其他管理实体向各 eNB发送， 再由源小 区 eNB向 UE发送， 具体方法可以是通过系统广播消息或专用无线资源控制 ( Radio Resource Control, RRC ) 消息等进行发送， 在此不作限定。
更进一步的， UE在对接收到的加扰后的切换命令进行合并解码后， 还可 根据解码情况向源小区 eNB和 /或目标小区 eNB发送反馈信息， 以便源小区 eNB和 /或目标小区 eNB根据该反馈信息确定是否执行重传。如果该反馈信息 是没有成功解码加扰后的切换命令， 则源小区 eNB和 /或目标小区 eNB可执 行重传。
以上为本发明实施例提供的源小区 eNB和目标小区 eNB向 UE下发切换 命令以及 UE接收切换命令的过程。
本发明实施例一所提供的信息发送和接收方法并不仅限于应用在寻呼消 息和切换命令的收发场景， 还可应用在其他两个以上 eNB和 UE传输信息的 场景， 此处就不再——赘述。 基于同样的思路， 本发明实施例还提供一种信 息发送装置和接收装置， 以及一种信息传输系统， 下面进行详细说明。
实施例四：
图 7为本发明实施例提供的信息发送装置结构示意图， 具体包括： 获取模块 701 , 用于获得要向用户设备 UE下发的信息；
加扰模块 702,用于釆用约定的扰码对所述获取模块 701获得的所述要向
UE下发的信息进行加扰， 其中， 所述约定的扰码与其他基站 eNB对所述要 向 UE下发的信息加扰所釆用的扰码相同；
发送模块 703 , 用于在约定的时刻向 UE下发所述加扰模块 702加扰后的 信息， 其中， 所述约定的时刻与其他 eNB向 UE下发加扰后的信息的时刻相 同。
所述装置还包括：
接收模块 704, 用于当所述获取模块 701获得的所述要向 UE下发的信息 为寻呼消息时，在所述加扰模块 702对所述要向 UE下发的信息进行加扰之前， 接收网络管理实体发送的配置信息， 所述配置信息中携带第一扰码信息以及 用于确定发送寻呼消息的发送时刻的参数信息；
所述加扰模块 702具体用于， 釆用接收到的所述配置信息中携带的第一 扰码对寻呼消息进行加扰；
所述发送模块 703 具体用于， 根据所述配置信息中携带的所述参数信息 确定发送寻呼消息的发送时刻，并在确定出的发送时刻向 UE下发加扰后的寻 呼消息。
所述装置还包括：
调度模块 705 , 用于在所述发送模块 703向 UE下发加扰后的信息之前， 将发送所述加扰后的寻呼消息所使用的物理资源信息以及调制编码方式信息 携带在寻呼调度信息中；
所述加扰模块 702还用于， 釆用预设的第一无线网络临时标识码 RNTI 对所述调度模块 705得到的所述寻呼调度信息进行加扰；
所述发送模块 703还用于， 将所述加扰模块 702加扰后的寻呼调度信息 下发给所述 UE, 用于使所述 UE釆用保存的所述第一 RNTI对加扰后的寻呼 调度信息解码， 获取解码后的寻呼调度信息中携带的物理资源信息和调制编 码方式信息， 并根据获取的物理资源信息和调制编码方式信息接收加扰后的 寻呼消息。
所述获取模块 701具体用于，生成切换准备请求信息，并先目标小区 eNB 发送所述切换准备请求信息， 其中， 所述切换准备请求信息中携带第二扰码 信息以及发送切换命令的发送时刻信息， 接收所述目标小区 eNB返回的携带 切换请求的切换准备确认信息， 将接收到的所述切换准备确认信息中携带的 切换请求作为获得的要向 UE下发的信息； 所述加扰模块 702具体用于， 釆用所述切换准备请求信息中携带的第二 扰码对所述切换命令进行加扰；
所述发送模块 703 具体用于， 在所述切换准备请求信息中携带的发送时 刻向 UE下发加扰后的切换命令。
所述发送模块 703还用于，在所述获取模块 701获得要向 UE下发的信息 之前， 将所述第二扰码信息发送给所述 UE保存。
所述装置还包括：
调度模块 705 , 用于在所述发送模块 703向 UE下发加扰后的信息之前， 将发送所述加扰后的切换命令所使用的物理资源信息以及调制编码方式信息 携带在切换调度信息中；
所述加扰模块 702还用于， 釆用预设的第二无线网络临时标识码 RNTI 对所述调度模块 705得到的所述切换调度信息进行加扰；
所述发送模块 703还用于， 将所述加扰模块 702加扰后的切换调度信息 下发给所述 UE, 用于使所述 UE釆用保存的所述第二 RNTI对加扰后的切换 调度信息解码， 获取解码后的切换调度信息中携带的物理资源信息和调制编 码方式信息， 并根据获取的物理资源信息和调制编码方式信息接收加扰后的 切换命令。
具体的上述信息发送装置可以位于 eNB中。
图 8为本发明实施例提供的信息接收装置结构示意图， 具体包括： 第一接收模块 801 , 用于接收至少两个基站 eNB在相同的时刻下发的釆 用相同的扰码加扰后的信息；
第一解码模块 802, 用于釆用预先保存的所述至少两个 eNB所使用的扰 码， 对所述第一接收模块 801接收到的各加扰后的信息进行合并解码。
所述装置还包括：
第二接收模块 803 , 用于在所述第一接收模块 801接收至少两个 eNB在 相同的时刻下发的釆用相同的扰码加扰后的信息之前， 接收网络管理实体发 送的配置信息并保存， 所述配置信息中携带第一扰码信息以及用于确定接收 寻呼消息的接收时刻的参数信息；
所述第一接收模块 801 具体用于， 根据所述配置信息中携带的所述参数 信息确定接收寻呼消息的接收时刻， 并在确定出的接收时刻接收至少两个 eNB在相同的时刻下发的釆用相同的扰码加扰后的寻呼消息；
所述第一解码模块 802具体用于， 釆用所述配置信息中携带的第一扰码， 对接收到的各加扰后的寻呼消息进行合并解码。
所述装置还包括：
第三接收模块 804, 用于在所述第一接收模块 801接收至少两个 eNB在 相同的时刻下发的釆用相同的扰码加扰后的寻呼消息之前， 接收至少两个 eNB发送的釆用预设的第一无线网络临时标识码 RNTI加扰后的寻呼调度信 息；
第二解码模块 805, 用于釆用保存的所述第一 RNTI对所述第三接收模块 804接收到的所述加扰后的寻呼调度信息解码，获取解码后的寻呼调度信息中 携带的物理资源信息以及调制编码方式信息；
所述第一接收模块 801具体用于， 根据所述第二解码模块 805获取到的 物理资源信息，在相应的物理资源上，在确定出的接收时刻接收至少两个 eNB 在相同的时刻下发的釆用相同的扰码加扰后的寻呼消息， 并根据所述第二解 码模块 805 获取到的调制编码方式信息， 对接收到的各加扰后的寻呼消息进 行解调。
所述装置还包括：
第二接收模块 803 , 用于接收源小区 eNB发送的第二扰码信息并保存； 所述第一接收模块 801具体用于， 接收所述源小区 eNB和目标小区 eNB 在相同的时刻下发的釆用所述第二扰码加扰后的切换命令； 其中， 当前为所 述 UE服务的小区为源小区， 所述 UE要切换到的小区为目标小区；
所述第一解码模块 802具体用于， 釆用所述第二接收模块 803接收到的 所述第二扰码对所述第一接收模块 801 接收到的各加扰后的切换命令进行合 并解码。 所述装置还包括：
第三接收模块 804, 用于在所述第一接收模块 801接收所述源小区 eNB 和目标小区 eNB在相同的时刻下发的釆用所述第二扰码加扰后的切换命令之 前，接收所述源小区 eNB和所述目标小区 eNB发送的釆用预设的第二无线网 络临时标识码 RNTI加扰后的切换调度信息；
第二解码模块 805, 用于釆用所述第二接收模块 803接收到的所述第二 RNTI对所述加扰后的切换调度信息解码， 获取解码后的切换调度信息中携带 的物理资源信息以及调制编码方式信息；
所述第一接收模块 801具体用于， 根据所述第二解码模块 805获取到的 物理资源信息，在相应的物理资源上接收所述源小区 eNB和目标小区 eNB在 相同的时刻下发的釆用所述第二扰码加扰后的切换命令， 并根据所述第二解 码模块 805 获取到的调制编码方式信息， 对接收到的各加扰后的切换命令进 行解调。
具体的上述信息接收装置可以位于 UE中。
图 9 为本发明实施例提供的信息传输系统结构示意图， 包括至少两个基 站 eNB901和用户设备 UE902； 其中
至少两个 eNB901 , 用于获得要向 UE902下发的信息， 釆用相同的扰码 对所述要向 UE902下发的信息进行加扰，在相同的时刻向 UE902下发加扰后 的信息；
UE902,用于接收至少两个 eNB901在相同的时刻下发的釆用相同的扰码 加扰后的信息，釆用预先保存的所述至少两个 eNB901所使用的扰码，对接收 到的各加扰后的信息进行合并解码。
图 10为本发明实施例提供的基站结构示意图， 具体包括：
接收器 1001 , 用于获得要向用户设备 UE下发的信息；
信号处理器 1002, 与所述接收器 1001和发射器 1003耦合， 用于釆用约 定的扰码对所述接收器 1001获得的所述要向 UE下发的信息进行加扰，其中， 所述约定的扰码与其他基站 eNB对所述要向 UE下发的信息加扰所釆用的扰 码相同；
发射器 1003 , 用于在约定的时刻向 UE下发所述信号处理器 1002加扰后 的信息， 其中， 所述约定的时刻与其他 eNB向 UE下发加扰后的信息的时刻 相同。
图 11为本发明实施例提供的用户设备结构示意图， 具体包括：
接收器 1101 , 用于接收至少两个基站 eNB在相同的时刻下发的釆用相同 的扰码加扰后的信息；
解码器 1102, 与所述接收器 1101耦合， 用于釆用预先保存的所述至少两 个 eNB所使用的扰码，对所述接收器 1101接收到的各加扰后的信息进行合并 解码。
本发明实施例提供一种信息发送和接收方法、 装置及信息传输系统， 该 方法至少两个 eNB获得要向 UE下发的信息， 釆用相同的扰码对要向 UE下 发的信息进行加扰， 并在相同的时刻向 UE下发加扰后的信息。 由于上述方法 至少两个 eNB在相同的时刻向 UE下发釆用相同的扰码加扰后的信息， 从而 UE可接收到至少两个釆用相同的扰码加扰后的信息， 因此， 相比于现有技术 中 UE 只能接收一个加扰后的信息的方法， 本发明实施例提供的上述方法当 UE位于小区边缘时， 可提高接收 eNB发送的信息的准确性。
本领域内的技术人员应明白， 本申请的实施例可提供为方法、 系统、 或 计算机程序产品。 因此， 本申请可釆用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实施例的形式。 而且， 本申请可釆用在一个或多个 其中包含有计算机可用程序代码的计算机可用存储介质 (包括但不限于磁盘 存储器、 CD-ROM、 光学存储器等）上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、 设备（系统）、 和计算机程序产 品的流程图和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图 和 /或方框图中的每一流程和 /或方框、 以及流程图和 /或方框图中的流程 和 /或方框的结合。 可提供这些计算机程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器， 使得通 过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流 程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设 备以特定方式工作的计算机可读存储器中， 使得存储在该计算机可读存储器 中的指令产生包括指令装置的制造品， 该指令装置实现在流程图一个流程或 多个流程和 /或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上， 使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的 处理， 从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图 一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的步 骤。
尽管已描述了本申请的优选实施例， 但本领域内的技术人员一旦得知了 基本创造性概念， 则可对这些实施例作出另外的变更和修改。 所以， 所附权 利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然， 本领域的技术人员可以对本申请实施例进行各种改动和变型而不 脱离本申请实施例的精神和范围。 这样， 倘若本申请实施例的这些修改和变 型属于本申请权利要求及其等同技术的范围之内， 则本申请也意图包含这些 改动和变型在内。

Claims

权 利 要 求
1、 一种信息发送方法， 其特征在于， 包括：
至少两个基站 eNB获得要向用户设备 UE下发的信息； 并
釆用相同的扰码对所述要向 UE下发的信息进行加扰； 以及
在相同的时刻向 UE下发加扰后的信息。
2、 如权利要求 1所述的方法， 其特征在于， 当所述要向 UE下发的信息 为寻呼消息时， 所述至少两个 eNB釆用相同的扰码对所述要向 UE下发的信 息进行加扰之前， 所述方法还包括：
所述至少两个 eNB接收网络管理实体发送的配置信息， 所述配置信息中 携带第一扰码信息以及用于确定发送寻呼消息的发送时刻的参数信息；
釆用相同的扰码对所述要向 UE下发的信息进行加扰， 具体包括： 所述至少两个 eNB釆用接收到的所述配置信息中携带的第一扰码对寻呼 消息进行力口扰；
在相同的时刻向 UE下发加扰后的信息， 具体包括：
所述至少两个 eNB根据所述配置信息中携带的所述参数信息确定发送寻 呼消息的发送时刻， 并在确定出的发送时刻向 UE下发加扰后的寻呼消息。
3、 如权利要求 2所述的方法， 其特征在于， 在相同的时刻向 UE下发加 扰后的信息之前， 所述方法还包括：
所述至少两个 eNB将发送所述加扰后的寻呼消息所使用的物理资源信息 以及调制编码方式信息携带在寻呼调度信息中； 并
釆用预设的第一无线网络临时标识码 RNTI对所述寻呼调度信息进行加 扰； 以及
将加扰后的寻呼调度信息下发给所述 UE, 用于使所述 UE釆用保存的所 述第一 RNTI对加扰后的寻呼调度信息解码，获取解码后的寻呼调度信息中携 带的物理资源信息和调制编码方式信息， 并根据获取的物理资源信息和调制 编码方式信息接收加扰后的寻呼消息。
4、 如权利要求 1所述的方法， 其特征在于， 当所述要向 UE下发的信息 为切换命令时， 所述至少两个 eNB包括源小区 eNB和目标小区 eNB;
至少两个 eNB获得要向 UE下发的信息， 具体包括：
所述源小区 eNB生成切换准备请求信息，并向所述目标小区 eNB发送所 述切换准备请求信息， 其中， 所述切换准备请求信息中携带第二扰码信息以 及发送切换命令的发送时刻信息；
所述目标小区 eNB接收到所述切换准备请求信息后， 生成携带切换请求 的切换准备确认信息， 并将所述切换准备确认信息返回源小区 eNB;
所述源小区 eNB将接收到的所述切换准备确认信息中携带的切换请求作 为获得的要向 UE下发的信息；
釆用相同的扰码对所述要向 UE下发的信息进行加扰， 具体包括： 所述源小区 eNB和所述目标小区 eNB釆用所述切换准备请求信息中携带 的第二扰码对所述切换命令进行加扰；
在相同的时刻向 UE下发加扰后的信息， 具体包括：
所述源小区 eNB和所述目标小区 eNB在所述切换准备请求信息中携带的 发送时刻向 UE下发加扰后的切换命令。
5、 如权利要求 4所述的方法， 其特征在于， 至少两个基站 eNB获得要向 用户设备 UE下发的信息之前， 所述方法还包括：
所述源小区 eNB将所述第二扰码信息下发给所述 UE保存。
6、 如权利要求 4或 5所述的方法， 其特征在于， 在相同的时刻向 UE下 发加扰后的信息之前， 所述方法还包括：
所述源小区 eNB和目标小区 eNB将发送所述加扰后的切换命令所使用的 物理资源信息以及调制编码方式信息携带在切换调度信息中； 并
釆用预设的第二无线网络临时标识码 RNTI对所述切换调度信息进行加 扰； 以及
将加扰后的切换调度信息下发给所述 UE, 用于使所述 UE釆用保存的所 述第二 RNTI对加扰后的切换调度信息解码，获取解码后的切换调度信息中携 带的物理资源信息和调制编码方式信息， 并根据获取的物理资源信息和调制 编码方式信息接收加扰后的切换命令。
7、 一种信息接收方法， 其特征在于， 包括：
用户设备 UE接收至少两个基站 eNB在相同的时刻下发的釆用相同的扰 码加扰后的信息； 并
釆用预先保存的所述至少两个 eNB所使用的扰码， 对接收到的各加扰后 的信息进行合并解码。
8、 如权利要求 7所述的方法 , 其特征在于 , UE接收至少两个 eNB在相 同的时刻下发的釆用相同的扰码加扰后的信息之前， 所述方法还包括：
所述 UE接收网络管理实体发送的配置信息并保存，所述配置信息中携带 第一扰码信息以及用于确定接收寻呼消息的接收时刻的参数信息；
UE接收至少两个 eNB在相同的时刻下发的釆用相同的扰码加扰后的信 息， 具体包括：
所述 UE根据所述配置信息中携带的所述参数信息确定接收寻呼消息的 接收时刻， 并在确定出的接收时刻接收至少两个 eNB在相同的时刻下发的釆 用相同的扰码加扰后的寻呼消息；
釆用预先保存的所述至少两个 eNB所使用的扰码， 对接收到的各加扰后 的信息进行合并解码， 具体包括：
所述 UE釆用所述配置信息中携带的第一扰码，对接收到的各加扰后的寻 呼消息进行合并解码。
9、 如权利要求 8所述的方法， 其特征在于， 所述 UE在确定出的接收时 刻接收至少两个 eNB在相同的时刻下发的釆用相同的扰码加扰后的寻呼消息 之前， 所述方法还包括：
所述 UE接收至少两个 eNB发送的釆用预设的第一无线网络临时标识码 RNTI加扰后的寻呼调度信息； 并
釆用保存的所述第一 RNTI对所述加扰后的寻呼调度信息解码，获取解码 后的寻呼调度信息中携带的物理资源信息以及调制编码方式信息；
所述 UE在确定出的接收时刻接收至少两个 eNB在相同的时刻下发的釆 用相同的扰码加扰后的寻呼消息， 具体包括：
所述 UE根据获取到的物理资源信息，在相应的物理资源上，在确定出的 接收时刻接收至少两个 eNB在相同的时刻下发的釆用相同的扰码加扰后的寻 呼消息， 并根据获取到的调制编码方式信息， 对接收到的各加扰后的寻呼消 息进行解调。
10、 如权利要求 7所述的方法， 其特征在于， UE接收至少两个 eNB在 相同的时刻下发的釆用相同的扰码加扰后的信息之前， 所述方法还包括： 所述 UE接收源小区 eNB发送的第二扰码信息并保存；
UE接收至少两个 eNB在相同的时刻下发的釆用相同的扰码加扰后的信 息， 具体包括：
所述 UE接收所述源小区 eNB和目标小区 eNB在相同的时刻下发的釆用 所述第二扰码加扰后的切换命令；其中，当前为所述 UE服务的小区为源小区， 所述 UE要切换到的小区为目标小区；
釆用预先保存的所述至少两个 eNB所使用的扰码， 对接收到的各加扰后 的信息进行合并解码， 具体包括：
所述 UE 釆用所述第二扰码对接收到的各加扰后的切换命令进行合并解 码。
11、 如权利要求 10所述的方法， 其特征在于， 所述 UE接收所述源小区 eNB和目标小区 eNB在相同的时刻下发的釆用所述第二扰码加扰后的切换命 令之前， 所述方法还包括：
所述 UE接收所述源小区 eNB和所述目标小区 eNB发送的釆用预设的第 二无线网络临时标识码 RNTI加扰后的切换调度信息； 并
釆用保存的所述第二 RNTI对所述加扰后的切换调度信息解码，获取解码 后的切换调度信息中携带的物理资源信息以及调制编码方式信息；
所述 UE接收所述源小区 eNB和目标小区 eNB在相同的时刻下发的釆用 所述第二扰码加扰后的切换命令， 具体包括：
所述 UE根据获取到的物理资源信息，在相应的物理资源上接收所述源小 区 eNB和目标小区 eNB在相同的时刻下发的釆用所述第二扰码加扰后的切换 命令， 并根据获取到的调制编码方式信息， 对接收到的各加扰后的切换命令 进行解调。
12、 一种信息发送装置， 其特征在于， 包括：
获取模块， 用于获得要向用户设备 UE下发的信息；
加扰模块，用于釆用约定的扰码对所述获取模块获得的所述要向 UE下发 的信息进行加扰， 其中， 所述约定的扰码与其他基站 eNB对所述要向 UE下 发的信息加扰所釆用的扰码相同；
发送模块， 用于在约定的时刻向 UE下发所述加扰模块加扰后的信息，其 中， 所述约定的时刻与其他 eNB向 UE下发加扰后的信息的时刻相同。
13、 如权利要求 12所述的装置， 其特征在于， 所述装置还包括： 接收模块，用于当所述获取模块获得的所述要向 UE下发的信息为寻呼消 息时，在所述加扰模块对所述要向 UE下发的信息进行加扰之前，接收网络管 理实体发送的配置信息， 所述配置信息中携带第一扰码信息以及用于确定发 送寻呼消息的发送时刻的参数信息；
所述加扰模块具体用于， 釆用接收到的所述配置信息中携带的第一扰码 对寻呼消息进行加扰；
所述发送模块具体用于， 根据所述配置信息中携带的所述参数信息确定 发送寻呼消息的发送时刻，并在确定出的发送时刻向 UE下发加扰后的寻呼消 息。
14、 如权利要求 13所述的装置， 其特征在于， 所述装置还包括： 调度模块， 用于在所述发送模块向 UE下发加扰后的信息之前，将发送所 述加扰后的寻呼消息所使用的物理资源信息以及调制编码方式信息携带在寻 呼调度信息中；
所述加扰模块还用于，釆用预设的第一无线网络临时标识码 RNTI对所述 调度模块得到的所述寻呼调度信息进行加扰；
所述发送模块还用于， 将所述加扰模块加扰后的寻呼调度信息下发给所 述 UE, 用于使所述 UE釆用保存的所述第一 RNTI对加扰后的寻呼调度信息 解码， 获取解码后的寻呼调度信息中携带的物理资源信息和调制编码方式信 息， 并根据获取的物理资源信息和调制编码方式信息接收加扰后的寻呼消息。
15、 如权利要求 12所述的装置， 其特征在于， 所述获取模块具体用于， 生成切换准备请求信息， 并先目标小区 eNB发送所述切换准备请求信息， 其 中， 所述切换准备请求信息中携带第二扰码信息以及发送切换命令的发送时 刻信息， 接收所述目标小区 eNB返回的携带切换请求的切换准备确认信息， 将接收到的所述切换准备确认信息中携带的切换请求作为获得的要向 UE 下 发的信息；
所述加扰模块具体用于， 釆用所述切换准备请求信息中携带的第二扰码 对所述切换命令进行加扰；
所述发送模块具体用于， 在所述切换准备请求信息中携带的发送时刻向 UE下发加扰后的切换命令。
16、 如权利要求 15所述的装置， 其特征在于， 所述发送模块还用于， 在 所述获取模块获得要向 UE下发的信息之前，将所述第二扰码信息发送给所述 UE保存。
17、 如权利要求 15或 16所述的装置， 其特征在于， 所述装置还包括： 调度模块， 用于在所述发送模块向 UE下发加扰后的信息之前，将发送所 述加扰后的切换命令所使用的物理资源信息以及调制编码方式信息携带在切 换调度信息中；
所述加扰模块还用于，釆用预设的第二无线网络临时标识码 RNTI对所述 调度模块得到的所述切换调度信息进行加扰；
所述发送模块还用于， 将所述加扰模块加扰后的切换调度信息下发给所 述 UE, 用于使所述 UE釆用保存的所述第二 RNTI对加扰后的切换调度信息 解码， 获取解码后的切换调度信息中携带的物理资源信息和调制编码方式信 息， 并根据获取的物理资源信息和调制编码方式信息接收加扰后的切换命令。
18、 一种信息接收装置， 其特征在于， 包括： 第一接收模块， 用于接收至少两个基站 eNB在相同的时刻下发的釆用相 同的扰码加扰后的信息；
第一解码模块， 用于釆用预先保存的所述至少两个 eNB所使用的扰码， 对所述第一接收模块接收到的各加扰后的信息进行合并解码。
19、 如权利要求 18所述的装置， 其特征在于， 所述装置还包括： 第二接收模块， 用于在所述第一接收模块接收至少两个 eNB在相同的时 刻下发的釆用相同的扰码加扰后的信息之前， 接收网络管理实体发送的配置 信息并保存， 所述配置信息中携带第一扰码信息以及用于确定接收寻呼消息 的接收时刻的参数信息；
所述第一接收模块具体用于， 根据所述配置信息中携带的所述参数信息 确定接收寻呼消息的接收时刻， 并在确定出的接收时刻接收至少两个 eNB在 相同的时刻下发的釆用相同的扰码加扰后的寻呼消息；
所述第一解码模块具体用于， 釆用所述配置信息中携带的第一扰码， 对 接收到的各加扰后的寻呼消息进行合并解码。
20、 如权利要求 19所述的装置， 其特征在于， 所述装置还包括： 第三接收模块， 用于在所述第一接收模块接收至少两个 eNB在相同的时 刻下发的釆用相同的扰码加扰后的寻呼消息之前， 接收至少两个 eNB发送的 釆用预设的第一无线网络临时标识码 RNTI加扰后的寻呼调度信息；
第二解码模块，用于釆用保存的所述第一 RNTI对所述第三接收模块接收 到的所述加扰后的寻呼调度信息解码， 获取解码后的寻呼调度信息中携带的 物理资源信息以及调制编码方式信息；
所述第一接收模块具体用于， 根据所述第二解码模块获取到的物理资源 信息， 在相应的物理资源上， 在确定出的接收时刻接收至少两个 eNB在相同 的时刻下发的釆用相同的扰码加扰后的寻呼消息， 并根据所述第二解码模块 获取到的调制编码方式信息， 对接收到的各加扰后的寻呼消息进行解调。
21、 如权利要求 18所述的装置， 其特征在于， 所述装置还包括： 第二接收模块， 用于接收源小区 eNB发送的第二扰码信息并保存； 所述第一接收模块具体用于，接收所述源小区 eNB和目标小区 eNB在相 同的时刻下发的釆用所述第二扰码加扰后的切换命令； 其中， 当前为所述 UE 服务的小区为源小区， 所述 UE要切换到的小区为目标小区；
所述第一解码模块具体用于， 釆用所述第二接收模块接收到的所述第二 扰码对所述第一接收模块接收到的各加扰后的切换命令进行合并解码。
22、 如权利要求 21所述的装置， 其特征在于， 所述装置还包括： 第三接收模块， 用于在所述第一接收模块接收所述源小区 eNB和目标小 区 eNB在相同的时刻下发的釆用所述第二扰码加扰后的切换命令之前， 接收 所述源小区 eNB和所述目标小区 eNB发送的釆用预设的第二无线网络临时标 识码 RNTI加扰后的切换调度信息；
第二解码模块，用于釆用所述第二接收模块接收到的所述第二 RNTI对所 述加扰后的切换调度信息解码， 获取解码后的切换调度信息中携带的物理资 源信息以及调制编码方式信息；
所述第一接收模块具体用于， 根据所述第二解码模块获取到的物理资源 信息，在相应的物理资源上接收所述源小区 eNB和目标小区 eNB在相同的时 刻下发的釆用所述第二扰码加扰后的切换命令， 并根据所述第二解码模块获 取到的调制编码方式信息， 对接收到的各加扰后的切换命令进行解调。
23、 一种信息传输系统， 其特征在于， 包括至少两个基站 eNB和用户设 备 UE; 其中
至少两个 eNB, 用于获得要向 UE下发的信息， 釆用相同的扰码对所述 要向 UE下发的信息进行加扰， 在相同的时刻向 UE下发加扰后的信息；
UE,用于接收至少两个 eNB在相同的时刻下发的釆用相同的扰码加扰后 的信息， 釆用预先保存的所述至少两个 eNB所使用的扰码， 对接收到的各加 扰后的信息进行合并解码。
24、 一种基站， 其特征在于， 包括：
接收器， 用于获得要向用户设备 UE下发的信息；
信号处理器， 与所述接收器和发射器耦合， 用于釆用约定的扰码对所述 接收器获得的所述要向 UE下发的信息进行加扰， 其中， 所述约定的扰码与其 他基站 eNB对所述要向 UE下发的信息加扰所釆用的扰码相同；
发射器，用于在约定的时刻向 UE下发所述信号处理器加扰后的信息，其 中， 所述约定的时刻与其他 eNB向 UE下发加扰后的信息的时刻相同。
25、 一种用户设备， 其特征在于， 包括：
接收器， 用于接收至少两个基站 eNB在相同的时刻下发的釆用相同的扰 码加扰后的信息；
解码器， 与所述接收器耦合， 用于釆用预先保存的所述至少两个 eNB所 使用的扰码， 对所述接收器接收到的各加扰后的信息进行合并解码。
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