WO2014153783A1 - 一种用户设备小区切换方法、装置和*** - Google Patents

一种用户设备小区切换方法、装置和*** Download PDF

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Publication number
WO2014153783A1
WO2014153783A1 PCT/CN2013/073492 CN2013073492W WO2014153783A1 WO 2014153783 A1 WO2014153783 A1 WO 2014153783A1 CN 2013073492 W CN2013073492 W CN 2013073492W WO 2014153783 A1 WO2014153783 A1 WO 2014153783A1
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WO
WIPO (PCT)
Prior art keywords
mac layer
switching
user equipment
cell
handover
Prior art date
Application number
PCT/CN2013/073492
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English (en)
French (fr)
Inventor
黄英
张鹏
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 PCT/CN2013/073492 priority Critical patent/WO2014153783A1/zh
Priority to CN201380000316.4A priority patent/CN104247502A/zh
Publication of WO2014153783A1 publication Critical patent/WO2014153783A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0064Transmission or use of information for re-establishing the radio link of control information between different access points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a user equipment cell handover method, apparatus, and system.
  • the traditional handover procedure is performed by RRC signaling interaction, and the cell id is used to distinguish the cells.
  • the small base station is arranged at the same place as the macro base station covers.
  • there are many types of network arrangements for the macro base station and the micro base station As shown in Figure 1, within the network architecture, the macro base station and the micro base station have the same frequency point (the same as the center frequency point of the base station transmitting the pilot signal) and the cell identifier id, which is logically considered to be a cell.
  • the inventor of the present invention finds that such a scenario in which the same frequency is covered by the same cell identity id, as shown in FIG. 1, when different base stations transmit different content, then the pilot channel
  • the control channel and the data channel may have large interference.
  • the UE User Equipment, User Equipment
  • the UE cannot even receive data correctly.
  • the UE In order for the UE to correctly receive data, it is preferable to enable the UE to identify the cells of different base stations.
  • This distinction of the UEs to receive information of different base stations is a kind of handover, but unlike the traditional handover, the traditional handover cannot complete the handover. Logically it is a cell handover.
  • An embodiment of the present invention provides a cell handover method, apparatus, and system for a user equipment, in order to quickly and flexibly complete cell handover of a user equipment in a wireless communication system including multiple base stations with the same frequency and same cell identity and common coverage.
  • the network center controls the process of the node switching to the cell handover, and at the same time increases the handover success rate.
  • an embodiment of the present invention provides a user equipment cell handover method, which is used in a wireless communication system, where the wireless communication system includes a same frequency and a same cell identifier, and a plurality of base stations are commonly covered, and the method includes:
  • the user equipment measures the channel quality of the cell in which the multiple base stations are located, and reports the measured channel quality result to the network center control node; Receiving a MAC layer handover command returned by the media access control layer MAC of the network center control node, where the MAC layer handover command includes a handover indication and switching address information of the target cell;
  • the cell handover is performed according to the received MAC layer handover command.
  • the handover indication is set in a header portion of the MAC layer handover command, and address information of the handover destination cell is set in a data portion of the MAC layer handover command.
  • the switching indication is set by adding a new element in the header portion, or by retaining an existing element in the header portion Field to set.
  • the address information of the handover target cell includes any one of a pilot spreading code, a pilot index, and a port number.
  • the user equipment after the MAC layer of the user equipment receives the MAC layer switching command, the user equipment The RRC layer sends a first indication, where the first indication indicates that the MAC layer of the user equipment has received a MAC layer handover command.
  • the embodiment of the present invention further provides a user equipment cell handover method, where the wireless communication system includes a same frequency and a same cell identifier, and a plurality of base stations that are commonly covered, the method includes :
  • the network center control node receives the channel quality result sent by the user equipment, where the channel quality result is the channel quality of the cell where the multiple base stations are measured by the user equipment;
  • the MAC layer of the network center control node generates a MAC layer handover command according to the channel quality result, and sends the MAC layer handover command to the MAC layer of the user equipment, where the MAC layer handover command includes a handover indication. And switching the address information of the target cell.
  • the embodiment of the present invention further provides a user equipment cell switching apparatus, which is used in a wireless communication system, where the wireless communication system includes the same frequency and the same cell identifier, and the multiple coverages of the common base station include:
  • a measurement module configured to measure channel quality of a cell in which the multiple base stations are located, and report the measured channel quality to a network center control node;
  • An execution module configured to receive a MAC layer switch returned by a MAC layer of the network center control node And performing a cell handover according to the received MAC layer handover command, where the MAC layer handover command includes a handover indication and address information of the handover destination cell.
  • the embodiment of the present invention further provides another user equipment cell switching apparatus, which is used in a wireless communication system, where the wireless communication system includes the same frequency and the same cell identifier, and the multiple base stations that are commonly covered include:
  • a receiving module configured to receive a channel quality result sent by the user equipment, where the channel quality result is a channel quality of a cell in which the multiple base stations are measured by the user equipment;
  • a generating module configured to generate a MAC layer handover command according to the channel quality result, and send the MAC layer handover command to a MAC layer of the user equipment, where the MAC layer handover command includes a handover indication and a handover target cell Address information.
  • the embodiment of the present invention further provides a user equipment cell switching apparatus, which is used in a wireless communication system, where the wireless communication system includes a same frequency and a same cell identifier, and a plurality of base stations are commonly covered, and the apparatus includes :
  • a receiver configured to receive a channel quality result sent by the user equipment, where the channel quality result is a channel quality of a cell of each of the multiple base stations measured by the user equipment;
  • a processor configured to generate a MAC layer handover command according to the channel quality result, and send the MAC layer handover command to a MAC layer of the user equipment, where the MAC layer handover command includes a handover indication and a handover target cell Address information.
  • the embodiment of the present invention further provides another user equipment cell switching system, which is used in a wireless communication system, where the wireless communication system includes the same frequency and the same cell identifier, and the common coverage multiple base stations, the user equipment
  • the cell switching system includes: an input device, an output device, a storage device, and a processing device;
  • the input device is configured to measure channel quality of a cell in which the multiple base stations are located, and send the measured channel quality result to a network center control node;
  • the output device is configured to generate a MAC layer handover command according to the channel quality result received by the network center control node, and send the MAC layer handover command to the processor, where the MAC layer handover command includes a handover Indicating and switching address information of the target cell;
  • the processing device is configured to perform cell handover according to the received MAC layer handover command.
  • the embodiment of the present invention adopts a wireless communication system with the same frequency and the same cell identifier, and is matched by the user equipment.
  • the channel quality of the cell in which the multiple base stations are located is measured, and the measurement result is sent to the MAC layer of the network center control node, and the MAC layer switching command is generated by the MAC layer of the network center control node, and sent to the user equipment, so that the user
  • the device performs cell handover according to the MAC layer handover command, and the handover process is completed, and the user equipment performs fast and flexible handover between different cell ports, and the handover success rate is ensured.
  • FIG. 1 is a block diagram of a prior art wireless communication network
  • FIG. 2 is a schematic flowchart of a mobile station cell handover method according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a format of a conventional MAC command
  • FIG. 4 is a schematic flowchart of another mobile station cell handover method according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a mobile station cell handover apparatus according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a mobile station cell switching system according to an embodiment of the present invention
  • FIG. 8 is a common coverage scenario applied in the embodiment of the present invention
  • FIG. 9 is another common coverage scenario applied by an embodiment of the present invention.
  • An embodiment of the present invention provides a cell handover method, apparatus, and system for a user equipment, in order to quickly and flexibly complete cell handover of a user equipment in a wireless communication system including multiple base stations with the same frequency and same cell identity and common coverage.
  • the network center controls the process of the node switching to the cell handover, and at the same time increases the handover success rate.
  • Time Division Multiple Access Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • FDMA Frequency Division Multiple Addressing
  • Orthogonal Frequency OFDM Orthogonal Frequency-Division Multiple Access
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • the user equipment which may be a wireless terminal or a wired 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.
  • a wireless terminal may also be called a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • a base station can refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or
  • the base station (NodeB) in WCDMA may also be an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in LTE, which is not limited in this application.
  • the base station controller may be a base station controller (BSC) in GSM or CDMA, or may be a radio network controller (RNC) in WCDMA, which is not limited in this application.
  • BSC base station controller
  • RNC radio network controller
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association that describes the associated object, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists separately, and both A and B exist, exist alone B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • An embodiment of the present invention provides a user equipment cell handover method, which is used in a wireless communication system, where the wireless communication system includes a same frequency and a same cell identifier, and a plurality of base stations are commonly covered, and the method includes:
  • the user equipment measures the channel quality of the cell in which the multiple base stations are located, and reports the measured channel quality result to the network center control node; and receives the MAC layer switch returned by the media access control layer MAC of the network center control node.
  • the MAC layer handover command includes a handover indication and switching address information of the target cell, and performs cell handover according to the received MAC layer handover command.
  • the MAC layer handover command is generated by the network center control node according to the received channel quality result
  • the address information of the handover destination cell includes any one of a pilot spreading code, a pilot index, and a port number.
  • the handover indication may be set in a header portion of the MAC layer handover command, and address information of the handover destination cell may be set in a data portion of the MAC layer handover command.
  • the switching indication can be set by adding a new element to the header portion or by a reserved field of the existing element of the header portion.
  • the method further includes: after receiving the MAC layer handover command, the MAC layer of the user equipment sends a first indication to the RRC layer of the user equipment, where the first indication indicates that the user equipment is The MAC layer receives the MAC layer handover command.
  • the user equipment cell handover method provided by the embodiment of the present invention is introduced into the BBU.
  • BBU Building Base Band Unit, indoor baseband processing unit
  • RRU Radio Remote Unit
  • a network center control node BBU is connected to multiple base stations (RRUs), including macro base stations and micro The base station, and the micro base station is in an area covered by the macro base station, and the network center control node determines, according to the information fed back by the user equipment, the connection between the user equipment and the cell where the base station is located.
  • the UE adds a companion pilot, i.e., accompanying data transmission, to the cells of these small base stations, and does not transmit when there is no data. In this way, the UE can distinguish the information of different base stations and reduce the interference.
  • the pilot frequency/adjacent pilot can be measured, then the base station or the transmitting port can be known to transmit data; or the dominant base station spread spectrum of the small base station.
  • the code is different from the macro base station. When the UE measures, it can also distinguish the data sent by different base stations (port number/pilot index).
  • pilot information/index/port number information the network can be sent to the UE in advance through a system broadcast message or other RRC message.
  • the user equipment measures channel quality of a cell where each of the multiple base stations is located.
  • the user equipment can measure the parameters required in the handover algorithm, and calculate the measured parameters according to the handover algorithm, thereby obtaining the channel quality of each cell.
  • the user equipment reports the measured channel quality result to the network center control node.
  • the above channel quality result refers to the channel quality of the cell in which each of the plurality of base stations is located.
  • the MAC layer of the network center control node After receiving the channel quality result reported by the user equipment, the MAC layer of the network center control node compares the channel quality of the cell in which the base station is located in the channel quality result, and selects the cell with the best channel quality as the target handover cell; The node determines whether a handover is required, and when necessary, sets a handover indication and switches address information of the target cell in the generated MAC layer handover command.
  • the handover indication may be set in the header portion of the MAC layer handover command, and the address information of the handover destination cell may be set in the data portion of the MAC layer handover command.
  • the handover indication may be set by adding a new element in the header portion of the MAC layer handover command, or by the reserved field of the existing element of the header portion of the MAC layer handover command.
  • the composition of the existing MAC command (corresponding to the MAC layer switching command in the embodiment of the present invention) is as shown in FIG. 3, and is composed of two parts: a MAC header (Media Access Control header) and a data part MAC SDU. (Media Access Control Service Data Unit).
  • An element can be added to the MAC header as an indication of the handover.
  • Table 1 is an example of a format of TCTF, and field values not used by TCTF can be used ( That is, the value of the Reserved part) to indicate the switching indication.
  • the user equipment performs cell handover according to the received MAC layer handover command. Specifically, the MAC layer of the user equipment sends the received MAC layer handover command to the physical layer of the user equipment, and the physical layer of the user equipment performs cell handover according to the MAC layer handover command.
  • the MAC layer of the user equipment may send a first indication to the RRC layer of the user equipment, where the first indication indicates that the MAC layer of the user equipment receives the MAC layer handover command.
  • the user equipment measures the channel quality of the cell where multiple base stations are located under the same coverage, and sends the measurement result to the network center control.
  • the MAC layer of the node generates a MAC layer handover command from the MAC layer of the network center control node, and sends the message to the user equipment, so that the user equipment performs cell handover according to the MAC layer handover command, and the process is switched, and the user equipment is different. Fast and flexible switching between cell ports and ensuring handover success rate.
  • the embodiment of the present invention further provides another user equipment cell handover method, which is used in a wireless communication system, where the wireless communication system includes a same frequency and same cell identifier, and a plurality of base stations are commonly covered, and the method includes:
  • the control node receives the channel quality result sent by the user equipment, where the channel quality result is the channel quality of the cell where the multiple base stations are measured by the user equipment; and the MAC layer of the network center control node is according to the channel
  • the quality result generates a MAC layer handover command, and sends the MAC layer handover command to the MAC layer of the user equipment, where the MAC layer handover command includes a handover indication and address information of the handover destination cell.
  • the MAC layer of the network center control node sends a MAC layer handover command to the MAC layer of the user equipment, so that the user equipment performs a cell handover according to the received MAC layer handover command.
  • the address information of the handover destination cell includes any one of a pilot spreading code, a pilot index, and a port number.
  • the handover indication is set in a header portion of the MAC layer handover command, and address information of the handover destination cell is set in a data portion of the MAC layer handover command. Further, the switching indication may be set by adding a new element in the header portion or by a reserved field of an existing element.
  • the MAC layer of the network center control node controls the node of the network center
  • the RRC layer sends a second indication, where the second indication indicates that the MAC layer of the network center control node sends a MAC layer handover command.
  • the network center control node receives the channel quality result sent by the user equipment, where the channel quality result is the channel quality of the cell where the multiple base stations are located in the wireless communication system measured by the user equipment.
  • the MAC layer of the network center control node generates a MAC layer handover command according to the channel quality result, where the MAC layer handover command includes the handover indication and the address information of the handover destination cell.
  • the MAC layer of the network center control node sends a MAC layer handover command to the MAC layer of the user equipment, so that the user equipment performs cell handover according to the received MAC layer handover command.
  • the MAC layer of the network center control node sends a second indication to the RRC layer of the network center control node, where the second indication indicates that the MAC layer of the network center control node sends The MAC layer switching command.
  • the handover indication may be set in the header portion of the MAC layer handover command, and the address information of the handover destination cell is set in the data portion of the MAC layer handover command.
  • the switching indication can be set by adding a new element in the header portion or by the reserved field of the existing element.
  • the user equipment cell handover method provided by the embodiment of the present invention adopts the same frequency, the same cell id, and the same coverage wireless communication system, and the user equipment performs each channel quality test and transmits the test result to the network center control.
  • the network center control node generates a MAC layer handover command according to the channel quality, and sends the MAC layer handover command to the MAC layer of the user equipment, so that the user equipment performs cell handover according to the MAC layer handover command, and the handover process is performed, and the user equipment is in different cells.
  • the embodiment of the present invention further provides a user equipment cell switching apparatus, which is used in a wireless communication system, where the wireless communication system includes a same frequency and same cell identifier, and a plurality of base stations are commonly covered, and the apparatus includes: a measurement module, The method is configured to measure the channel quality of the cell in which the multiple base stations are located, and report the measured channel quality result to the network center control node.
  • the executing module is configured to receive the MAC returned by the MAC layer of the network center control node.
  • Layer switching command and based on the received MAC The layer switching command performs cell handover, where the MAC layer handover command includes a handover indication and address information of the handover destination cell.
  • the execution module is further configured to: after receiving the MAC layer handover command, send a first indication to the RRC layer of the user equipment, where the first indication indicates that the user equipment receives a MAC layer handover command.
  • the address information of the handover destination cell includes any one of a pilot spreading code, a pilot index, and a port number.
  • the BBU+RRU radio remote technology is introduced in the wireless communication network applied by the user equipment cell switching device provided by the embodiment of the present invention, and the network center control node (BBU) determines the user equipment according to the channel quality fed back by the measurement module. Whether it is necessary to switch the cell and switch the address information of the target cell.
  • the execution module is further configured to: after receiving the MAC layer handover command, send a first indication to the RRC layer of the user equipment, where the first indication indicates that the user equipment receives a MAC layer handover command.
  • the address information of the handover target cell includes any one of a pilot spreading code, a pilot index, and a port number.
  • the user equipment cell switching apparatus includes: a measurement module 301, configured to measure channel quality of a cell where each of the multiple base stations in the wireless communication system is located, and report the measured channel quality result to the The network center control node; the measurement module 301 can measure the required parameters according to a preset algorithm, that is, measure corresponding parameters in the cells where each base station is located, and calculate parameters measured by each cell according to a preset algorithm, thereby obtaining each base station.
  • the performing module 302 is configured to receive a MAC layer handover command returned by the MAC layer of the network center control node, and perform cell handover according to the received MAC layer handover command, where the MAC layer handover command includes a handover indication and a handover destination.
  • the address information of the cell is configured to receive a MAC layer handover command returned by the MAC layer of the network center control node, and perform cell handover according to the received MAC layer handover command, where the MAC layer handover command includes a handover indication and a handover destination. The address information of the cell.
  • the MAC layer of the network center control node may set the handover indication to the header portion of the MAC layer handover command, and set the address information of the handover destination cell to the data portion of the MAC layer handover command. Further, the handover indication may be adopted. Add a new element to the header section to set it, or set it by the reserved field of the existing element in the header section.
  • the cell switching device provided by the embodiment of the present invention may be installed in a user equipment, or may pass Other ways to establish communication with the user equipment.
  • the measurement module in the cell switching device of the user equipment measures the channel quality of the cell where each base station is located in the wireless communication system, and feeds the measurement result back to the network center control node, so that the network center control node
  • the handover judgment may be performed according to the channel quality result, and the MAC layer handover command is generated, and the execution module in the device performs the action according to the MAC layer handover command from the network center control node, that is, whether the cell handover and the handover target cell are performed, and the device implements
  • the user equipment quickly and flexibly switches between different cell ports, and the switching process is single, and the switching success rate is high.
  • the embodiment of the present invention further provides another user equipment cell switching apparatus.
  • the apparatus is used in a wireless communication system, where the wireless communication system includes the same frequency and same cell identifier, and multiple base stations are commonly covered.
  • the device includes: a receiving module 401, configured to receive a channel quality result sent by the user equipment, where the channel quality result is a channel quality of a cell of each of the multiple base stations measured by the user equipment; And generating, by the channel quality result, a MAC layer handover command, and sending the MAC layer handover command to the MAC layer of the user equipment, so that the user equipment performs cell handover according to the received MAC layer handover command,
  • the MAC layer handover command includes a handover indication and address information of the handover destination cell.
  • the user equipment performs cell handover according to the received MAC layer handover command.
  • the generating module is configured to set the handover indication to a header portion of the MAC layer handover command, and set address information of the handover destination cell to a data portion of the MAC layer handover command. Further, the generating module may set the switching indication by adding a new element in the header portion, or set the switching indication by using a reserved field of an existing element.
  • the generating module is further configured to send a second indication to the RRC layer of the network center control node, where the second indication indicates that the generating module sends a MAC layer switching command.
  • the address information of the handover target cell includes any one of a pilot spreading code, a pilot index, and a port number.
  • the generating module 402 in the user equipment cell switching apparatus provided by the embodiment of the present invention generates a MAC layer switching command according to the channel quality result received by the receiving module 401, and sends the MAC layer switching command to the user equipment, where the MAC layer switching command includes Switching indication and switching address information of the destination cell, from The user equipment performs cell handover according to the MAC layer handover command, and the implementation process of the device is single, and the handover success rate is ensured.
  • the embodiment of the present invention further provides a user equipment cell switching apparatus, which is used in a wireless communication system, where the wireless communication system includes the same frequency and the same cell identifier, and the plurality of base stations are commonly covered, and the apparatus includes:
  • a receiver configured to receive a channel quality result sent by the user equipment, where the channel quality result is a channel quality of a cell of each of the multiple base stations measured by the user equipment;
  • a processor configured to generate a MAC layer handover command according to the channel quality result, and send the MAC layer handover command to a MAC layer of the user equipment, where the MAC layer handover command includes a handover indication and a handover target cell Address information.
  • the processor is configured to set the handover indication to a header portion of the MAC layer handover command, and set address information of the handover destination cell to a data portion of the MAC layer handover command. Further, the processor may set the switching indication by adding a new element in the header portion, or set the switching indication by using a reserved field of an existing element.
  • the address information of the handover target cell includes any one of a pilot spreading code, a pilot index, and a port number.
  • the processor in the cell switching device of the user equipment generates a MAC layer handover command according to the channel quality result received by the receiver, and sends the message to the user equipment, where the MAC layer handover command includes a handover indication. And switching the address information of the target cell, so that the user equipment performs cell handover according to the MAC layer handover command, and the implementation process of the device is single, and the handover success rate is ensured.
  • the embodiment of the present invention further provides a user equipment cell handover system, which is used in a wireless communication system, where the wireless communication system includes a same frequency and a same cell identifier, and a plurality of base stations are commonly covered, and the handover system includes the third embodiment of the present invention.
  • the provided user equipment cell switching apparatus and the user equipment cell switching apparatus provided in Embodiment 4 are provided.
  • the user equipment cell handover system includes: a measurement module 301, configured to perform channel quality on a cell where each of a plurality of base stations in a wireless communication system is located. Measuring, and reporting the measured channel quality result to the receiving module 401; the receiving module 401, configured to receive the channel quality result sent by the measuring module 301; the generating module 402, configured to generate a MAC layer switching command according to the received channel quality result
  • the MAC layer handover command is sent to the execution module 302, where the MAC layer handover command includes the handover indication and the address information of the handover destination cell.
  • the execution module 302 is configured to perform cell handover according to the received MAC layer handover command.
  • the measurement module 301 in the user equipment cell switching system measures the channel quality of the cell in which the base station is located in the wireless communication system, and feeds the measurement result to the receiving module 401, so that the generating module 402 can Performing a handover judgment according to the channel quality result received by the receiving module 401, and generating a MAC layer handover command, and the execution module 302 performs an action according to the MAC layer handover command obtained from the generation module 402, that is, whether to perform cell handover and switch the address information of the target cell.
  • the system realizes fast and flexible switching of user equipments between different cell ports, and the switching process is single, and the switching success rate is high.
  • the embodiment of the present invention further provides another user equipment cell switching system, which is used in a wireless communication system, where the wireless communication system includes a plurality of base stations that have the same frequency and same cell identifier id and are commonly covered, and the system includes: Output device, storage device and processing device.
  • the input device is configured to measure channel quality of a cell in which the multiple base stations are located, and send the measured channel quality result to the physical layer of the network center control node.
  • the output device is configured to generate a MAC layer handover command according to the channel quality result received by the physical layer of the network center control node, and send the MAC layer handover command to the processor, where the MAC layer handover command
  • the switch indication and the address information of the handover destination cell are included.
  • the processing device is configured to perform cell handover according to the received MAC layer handover command.
  • the output device sets the switching indication by adding a new element to the header portion, or sets the switching indication by a reserved field of an existing element.
  • the address information of the handover target cell includes any one of a pilot spreading code, a pilot index, and a port number.
  • the input module in the user equipment cell switching system measures the channel quality of the cell where each base station is located in the wireless communication system, and feeds the measurement result back to the network center control node, so that the output device according to the network
  • the channel quality result received by the central control node The MAC layer switching command is transmitted to the processor, so that the processor performs cell switching according to the MAC layer switching command, and implements fast and flexible switching between different cell ports, and the switching process is single, and the switching success rate is high.
  • the common coverage in the embodiment of the present invention includes the two scenarios shown in FIG. 8 and FIG. 9.
  • FIG. 8 shows that the coverage area of the macro base station partially overlaps with the coverage area of the micro base station
  • FIG. 9 shows that The coverage area of the base station is located within the coverage area of the macro base station.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described as separate components may or may not be physically separate, and the components displayed as the units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the medium includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

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Abstract

本发明公开了一种用户设备小区切换方法、装置和***,该方法采用在包含同频同小区标识,并且共通覆盖的多个基站的无线通信***中,由用户设备对同覆盖下的多个基站所在小区的信道质量进行测量,并将测量结果发送给网络中心控制节点的MAC层,由网络中心控制节点的MAC层生成MAC层切换命令,并发送给用户设备,使得用户设备根据该MAC层切换命令进行小区的切换,切换过程筒单,实现了用户设备在不同的小区端口之间进行快速灵活的切换,并且保证了切换成功率。

Description

一种用户设备小区切换方法、 装置和*** 技术领域
本发明涉及通信技术领域, 具体涉及一种用户设备小区切换方法、装置和 ***。
背景技术
现在的通信***(如 GSM、 UMTS, LTE ***) 中, 传统切换流程都是 通过 RRC信令交互来进行, 并且利用小区 id来区分小区。 在现在的无线通信 ***中, 为了增加小区的吞吐量, 在宏基站覆盖的地方, 同时布置小基站, 具 体的, 宏基站和微基站的布网方式有很多种, 有一种布网方式参见图 1所示, 在该网络架构内,宏基站和微基站具有相同的频点(基站发射导频信号的中心 频点一样)和小区标识 id, 逻辑上认为是一个小区。
在对此切换方法的研究和实践过程中, 本发明的发明人发现, 这种同频同 小区标识 id共覆盖的场景, 如图 1 中, 不同基站如果发射不同的内容时, 那 么导频信道, 控制信道, 数据信道会存在^艮大的干扰, 有些情况, UE ( User Equipment, 用户设备)甚至不能正确接收数据。
为了让 UE正确接收数据, 最好是让 UE能够识别不同基站的小区, UE 的这种区分接收不同基站的信息,就是一种切换,但是与传统意义的切换不同, 传统的切换不能完成这种逻辑上是一个小区的切换。
发明内容
本发明实施例提供一种用户设备小区切换方法、装置和***, 以期在包括 同频同小区标识, 并且共通覆盖的多个基站的无线通信***中, 快速灵活地完 成用户设备的小区切换, 筒化网络中心控制节点对小区切换的处理过程, 同时 提高切换成功率。
第一方面, 本发明实施例提供一种用户设备小区切换方法, 用于无线通信 ***中,所述无线通信***包括同频和同小区标识,并且共通覆盖的多个基站, 所述方法包括:
用户设备对所述多个基站各自所在小区的信道质量进行测量,并将测量到 的信道质量结果上报给网络中心控制节点; 接收所述网络中心控制节点的媒体访问控制层 MAC返回的 MAC层切换命 令, 所述 MAC层切换命令包含切换指示和切换目的小区的地址信息;
根据接收到的 MAC层切换命令进行小区切换。
在第一种可能的实施方式中, 结合第一方面, 所述切换指示设置于所述 MAC层切换命令的包头部分, 所述切换目的小区的地址信息设置于所述 MAC 层切换命令的数据部分。
在第二种可能的实施方式中, 结合第一方面的第一种可能的实施方式, 所 述切换指示通过在所述包头部分增加新元素来设置,或者通过所述包头部分已 有元素的保留字段来设置。
其中, 所述切换目的小区的地址信息包括导频扩频码、导频索引和端口号 中的任意一个。
在第三种可能的实施方式中,结合第一方面或者第一方面的第一种可能的 实施方式, 所述用户设备的 MAC层接收到所述 MAC层切换命令后, 向所述用 户设备的 RRC层发送第一指示, 所述第一指示表示所述用户设备的 MAC层收 到了 MAC层切换命令。
第二方面, 本发明实施例还提供一种用户设备小区切换方法, 用于无线通 信***中, 所述无线通信***包括同频和同小区标识, 并且共通覆盖的多个基 站, 所述方法包括:
网络中心控制节点接收用户设备发送的信道质量结果, 其中, 所述信道质 量结果为所述用户设备测量的所述多个基站各自所在小区的信道质量;
所述网络中心控制节点的 MAC层根据所述信道质量结果生成 MAC层切换 命令, 并将所述 MAC层切换命令发送给所述用户设备的 MAC层, 其中, 所述 MAC层切换命令包含切换指示和切换目的小区的地址信息。
第三方面, 本发明实施例还提供一种用户设备小区切换装置, 用于无线通 信***中, 所述无线通信***包括同频和同小区标识, 并且共通覆盖的多个基 站, 包括:
测量模块, 用于对所述多个基站各自所在小区的信道质量进行测量, 并将 测量到的信道质量上报给网络中心控制节点;
执行模块, 用于接收所述网络中心控制节点的 MAC层返回的 MAC层切换 命令, 并根据接收到的 MAC层切换命令进行小区切换, 其中, 所述 MAC层切 换命令包含切换指示和切换目的小区的地址信息。
第四方面, 本发明实施例还提供另一种用户设备小区切换装置, 用于无线 通信***中, 所述无线通信***包括同频和同小区标识, 并且共通覆盖的多个 基站, 包括:
接收模块, 用于接收用户设备发送的信道质量结果, 其中, 所述信道质量 结果为所述用户设备测量的所述多个基站各自所在小区的信道质量;
生成模块, 用于根据所述信道质量结果生成 MAC层切换命令, 并将所述 MAC层切换命令发送给所述用户设备的 MAC层, 其中, 所述 MAC层切换命令 包含切换指示和切换目的小区的地址信息。
第五方面, 本发明实施例还提供一种用户设备小区切换装置, 用于无线通 信***中, 所述无线通信***包括同频和同小区标识, 并且共通覆盖的多个基 站, 所述装置包括:
接收器, 用于接收用户设备发送的信道质量结果, 其中, 所述信道质量结 果为所述用户设备测量的所述多个基站各自所在小区的信道质量;
处理器,用于根据所述信道质量结果生成 MAC层切换命令,并将所述 MAC 层切换命令发送给所述用户设备的 MAC层, 其中, 所述 MAC层切换命令包含 切换指示和切换目的小区的地址信息。
第六方面, 本发明实施例还提供另一种用户设备小区切换***, 用于无线 通信***中, 所述无线通信***包括同频和同小区标识, 并且共通覆盖的多个 基站, 该用户设备小区切换***包括: 输入装置、 输出装置、 存储装置和处理 装置;
所述输入装置, 用于对所述多个基站各自所在小区的信道质量进行测量, 并将测量到的信道质量结果上 给网络中心控制节点;
所述输出装置,用于根据所述网络中心控制节点接收到的信道质量结果生 成 MAC层切换命令,并将所述 MAC层切换命令发送给处理器,其中,所述 MAC 层切换命令中包含切换指示和切换目的小区的地址信息;
所述处理装置, 用于根据接收到的 MAC层切换命令进行小区切换。
本发明实施例采用在同频同小区标识的无线通信***中,由用户设备对同 覆盖下的多个基站所在小区的信道质量进行测量,并将测量结果发送给网络中 心控制节点的 MAC层, 由网络中心控制节点的 MAC层生成 MAC层切换命 令, 并发送给用户设备, 使得用户设备根据该 MAC层切换命令进行小区的切 换, 本切换过程筒单, 完成了用户设备在不同的小区端口之间进行快速灵活的 切换, 并且保证了切换成功率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施 例或现有技术描述中所需要使用的附图作筒单地介绍,显而易见地, 下面描述 中的附图仅仅是本发明的一些实施例,对于本领域技术人员来讲,在不付出创 造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是现有技术无线通信网络的架构图;
图 2是本发明实施例提供的一种移动站小区切换方法的流程示意图; 图 3是现有的一种 MAC命令的格式示意图;
图 4是本发明实施例提供的另一种移动站小区切换方法的流程示意图; 图 5是本发明实施例提供的一种移动站小区切换装置的结构示意图; 图 6是本发明实施例提供的另一种移动站小区切换装置的结构示意图; 图 7是本发明实施例提供的一种移动站小区切换***的结构示意图; 图 8是本发明实施例应用的一种共通覆盖场景;
图 9是本发明实施例应用的另一种共通覆盖场景。
具体实施方式
本发明实施例提供一种用户设备小区切换方法、装置和***, 以期在包含 同频同小区标识、并且共通覆盖的多个基站的无线通信***中, 快速灵活地完 成用户设备的小区切换, 筒化网络中心控制节点对小区切换的处理过程, 同时 提高切换成功率。
为了使本技术领域的人员更好地理解本发明方案,下面将结合本发明实施 例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所 描述的实施例仅仅是本发明一部分的实施例, 而不是全部的实施例。基于本发 明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所 有其他实施例, 都应当属于本发明保护的范围。 本文中描述的技术可用于各种通信***, 例如当前 2G, 3G通信***和下 一代通信***, 例如全球移动通信*** (GSM , Global System for Mobile communications ), 码分多址 ( CDMA, Code Division Multiple Access ) ***, 时分多址 (TDMA , Time Division Multiple Access ) ***, 宽带码分多址 ( WCDMA, Wideband Code Division Multiple Access Wireless ), 频分多址 ( FDMA , Frequency Division Multiple Addressing ) ***, 正交频分多址 ( OFDM A, Orthogonal Frequency-Division Multiple Access )***,单载波 FDMA ( SC-FDMA )***,通用分组无线业务( GPRS , General Packet Radio Service ) ***, 长期演进( LTE , Long Term Evolution ) ***, 以及其他此类通信***。
本文中结合用户设备和 /或基站和 /或基站控制器来描述各种方面。
用户设备, 可以是无线终端也可以是有线终端, 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。 例如, 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***、 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。
基站控制器, 可以是 GSM或 CDMA中的基站控制器 (BSC, base station controller ), 也可以是 WCDMA中的无线网络控制器 (RNC, Radio Network Controller ), 本申请并不限定。
另外, 本文中术语"***"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。
实施例一、
本发明实施例提供一种用户设备小区切换方法, 用于无线通信***中, 所 述无线通信***包括同频和同小区标识, 并且共通覆盖的多个基站, 所述方法 包括:
用户设备对所述多个基站各自所在小区的信道质量进行测量,并将测量到 的信道质量结果上报给网络中心控制节点;接收所述网络中心控制节点的媒体 访问控制层 MAC返回的 MAC层切换命令,所述 MAC层切换命令包含切换指示 和切换目的小区的地址信息; 根据接收到的 MAC层切换命令进行小区切换。
其中, MAC层切换命令由网络中心控制节点根据接收到的信道质量结果 生成;
切换目的小区的地址信息中包括导频扩频码,导频索引和端口号中任意一 个。
具体的, 所述切换指示可以设置于所述 MAC层切换命令的包头部分, 所 述切换目的小区的地址信息可以设置于所述 MAC层切换命令的数据部分。 进 一步的,切换指示可以通过在所述包头部分增加新元素来设置, 或者通过所述 包头部分已有元素的保留字段来设置。
进一步的, 所述方法还包括: 所述用户设备的 MAC层接收到所述 MAC层 切换命令后, 向所述用户设备的 RRC层发送第一指示, 所述第一指示表示所述 用户设备的 MAC层收到了 MAC层切换命令。
需要说明的是, 本发明实施例提供的用户设备小区切换方法引入 BBU ( Building Base band Unit, 室内基带处理单元 ) +RRU ( Radio Remote Unit, 射频拉远单元)射频拉远技术, 一个网络中心控制节点 (BBU ) 与多个基站 ( RRU )连接, 包括宏基站和微基站, 并且微基站处于宏基站覆盖的区域, 网 络中心控制节点根据用户设备反馈的信息决定用户设备与哪一基站所在小区 建立连接。
UE在这些小基站的小区增加一个伴随导频, 即伴随的数据发送, 当没有 数据时不发送。 这样 UE就可以区分不同基站的信息, 减少了干扰, UE进行 测量的时候可以测量到主导频 /伴随导频, 则可以知道是哪个基站或者发射端 口发送的数据; 或者小基站的主导频扩频码和宏基站不同, UE测量的时候也 能区分不同基站(端口号 /导频索引) 下发的数据。
这些导频信息 /索引 /端口号信息, 网络事先可以通过***广播消息或者其 他 RRC消息发给 UE。
参见图 2所示, 具体流程如下。
S101、 用户设备对多个基站各自所在小区的信道质量进行测量。
用户设备可以对切换算法中所需要的参量进行测量,并根据切换算法对测 出的参量进行计算, 从而得到各个小区的信道质量。
5102、 用户设备将测量得到的信道质量结果上报给网络中心控制节点。 上述信道质量结果指多个基站各自所在小区的信道质量。
5103、 接收所述网络中心控制节点的媒体访问控制层 MAC返回的 MAC 层切换命令, 其中, MAC层切换命令包含切换指示和切换目的小区的地址信 息。
其中, 网络中心控制节点的 MAC层接收到用户设备上报的信道质量结果 后,对信道质量结果中各个基站所在小区的信道质量进行比较,选择信道质量 最好的小区作为目标切换小区; 网络中心控制节点决定是否需要切换, 当需要 时, 在生成的 MAC层切换命令中设置切换指示和切换目的小区的地址信息。
切换指示可以设置于 MAC层切换命令的包头部分, 切换目的小区的地址 信息可以设置于 MAC层切换命令的数据部分。
进一步的, 切换指示可以通过在 MAC层切换命令的包头部分增加新元素 来设置, 或者通过 MAC层切换命令的包头部分已有元素的保留字段来设置。 具体的, 现有的 MAC命令 (相当于本发明实施例中的 MAC层切换命令) 的组成如图 3所示,由两部分组成: 包头部分 MAC header ( Media Access Control header )和数据部分 MAC SDU ( Media Access Control Service Data Unit )。
可以在 MAC header中增加一个元素作为切换的指示, 当然, 我们可以在 MAC切换命令的众多格式中的任意位置增加一个新元素, 来表示切换指示。
或者, 也可以利用现在已有的元素, 例如, 利用 TCTF/TF/LCH-ID/SI中没 有用到的值,表 1是 TCTF的一种格式示例,可以用 TCTF没有用到的字段值(即 Reserved部分的值)来表示切换指示。
Figure imgf000009_0001
Figure imgf000009_0002
另外, 在 LTE***中同样也可以在 MAC header中设置切换指示, 在 LCID 元素中增加一个 ID, ID=111111 , 或者用保留的 01011-11010来表示小区切换; 或者, 在 MAC header中增加一个元素 indication, 用来表示小区切换。
S104、 用户设备根据接收到的 MAC层切换命令进行小区切换。 具体的, 用户设备的 MAC层将接收到的 MAC层切换命令发送给用户设备 的物理层, 用户设备的物理层根据该 MAC层切换命令进行小区切换。
进一步的, 用户设备的 MAC层接收到所述 MAC层切换命令后, 可以向用 户设备的 RRC层发送第一指示, 该第一指示表示用户设备的 MAC层收到了 MAC层切换命令。
由上可见, 本发明实施例采用在同频同小区标识 id的无线通信***中, 由 用户设备对同覆盖下的多个基站所在小区的信道质量进行测量,并将测量结果 发送给网络中心控制节点的 MAC层, 由网络中心控制节点的 MAC层生成 MAC 层切换命令, 并发送给用户设备, 使得用户设备根据该 MAC层切换命令进行 小区的切换,切换过程筒单, 实现了用户设备在不同的小区端口之间进行快速 灵活的切换, 并且保证了切换成功率。
实施例二、
本发明实施例还提供另一种用户设备小区切换方法, 用于无线通信*** 中, 所述无线通信***包括同频和同小区标识, 并且共通覆盖的多个基站, 所 述方法包括: 网络中心控制节点接收用户设备发送的信道质量结果, 其中, 所 述信道质量结果为所述用户设备测量的所述多个基站各自所在小区的信道质 量; 所述网络中心控制节点的 MAC层根据所述信道质量结果生成 MAC层切换 命令, 并将所述 MAC层切换命令发送给所述用户设备的 MAC层, 其中, 所述 MAC层切换命令中包含切换指示和切换目的小区的地址信息。
其中, 所述网络中心控制节点的 MAC层将 MAC层切换命令发送给所述用 户设备的 MAC层后, 使得所述用户设备根据接收到的 MAC层切换命令进行小 区切换。
所述切换目的小区的地址信息包括导频扩频码、导频索引和端口号中任意 一个。
所述切换指示设置于所述 MAC层切换命令的包头部分, 所述切换目的小 区的地址信息设置于所述 MAC层切换命令的数据部分。 进一步的, 所述切换 指示可以通过在所述包头部分增加新元素来设置,或者通过已有元素的保留字 段来设置。
进一步的, 所述网络中心控制节点的 MAC层向所述网络中心控制节点的 RRC层发送第二指示, 所述第二指示表示所述网络中心控制节点的 MAC层发 送了 MAC层切换命令。
参见图 4所示, 具体流程如下。
5201、 网络中心控制节点接收用户设备发送的信道质量结果, 其中, 信道 质量结果为该用户设备测量到的无线通信***中多个基站各自所在小区的信 道质量。
5202、 网络中心控制节点的 MAC层根据信道质量结果生成 MAC层切换命 令, 其中, MAC层切换命令中包含切换指示和切换目的小区的地址信息。
5203、 网络中心控制节点的 MAC层将 MAC层切换命令发送给用户设备的 MAC层, 使得用户设备根据接收到的 MAC层切换命令进行小区切换。
进一步的, 当网络中心控制节点的 MAC层发送 MAC层切换命令后, 网络 中心控制节点的 MAC层向网络中心控制节点的 RRC层发送第二指示, 第二指 示表示网络中心控制节点的 MAC层发送了 MAC层切换命令。
其中, 切换指示可以设置于 MAC层切换命令的包头部分, 切换目的小区 的地址信息设置于 MAC层切换命令的数据部分。
进一步的,切换指示可以通过在包头部分增加新元素来设置, 或者通过已 有元素的保留字段来设置。
由上可知, 本发明实施例提供的用户设备小区切换方法采用在同频、 同小 区 id、 同覆盖的无线通信***中, 由用户设备进行各信道质量的测试并将测试 结果传送给网络中心控制节点, 由网络中心控制节点根据信道质量生成 MAC 层切换命令, 并发送给用户设备的 MAC层, 从而用户设备根据 MAC层切换命 令进行小区切换,切换过程筒单, 实现了用户设备在不同的小区端口之间进行 快速灵活的切换, 并且保证了切换成功率。
实施例三、
本发明实施例还提供一种用户设备小区切换装置, 用于无线通信***中, 所述无线通信***包括同频和同小区标识, 并且共通覆盖的多个基站, 所述装 置包括: 测量模块, 用于对所述多个基站各自所在小区的信道质量进行测量, 并将测量到的信道质量结果上报给网络中心控制节点; 执行模块, 用于接收所 述网络中心控制节点的 MAC层返回的 MAC层切换命令, 并根据接收到的 MAC 层切换命令进行小区切换, 其中, 所述 MAC层切换命令包含切换指示和切换 目的小区的地址信息。
其中, 执行模块还用于当接收到所述 MAC层切换命令后, 向所述用户设 备的 RRC层发送第一指示, 所述第一指示表示所述用户设备收到了 MAC层切 换命令。
所述切换目的小区的地址信息包括导频扩频码、导频索引和端口号中的任 意一个。
需要说明的是,本发明实施例提供的用户设备小区切换装置应用的无线通 信网络中引入了 BBU+RRU射频拉远技术, 网络中心控制节点( BBU )根据测 量模块反馈的信道质量,判断用户设备是否需要切换小区以及切换目的小区的 地址信息。
执行模块还用于当接收到所述 MAC层切换命令后, 向所述用户设备的 RRC层发送第一指示, 所述第一指示表示所述用户设备收到了 MAC层切换命 令。
其中, 所述切换目的小区的地址信息包括导频扩频码、导频索引和端口号 中的任意一个。
具体的, 参见图 5所示, 用户设备小区切换装置包括: 测量模块 301 , 用于 对无线通信***中的多个基站各自所在小区的信道质量进行测量,并将测量到 的信道质量结果上报给网络中心控制节点; 测量模块 301可以根据预设算法对 需要的参量进行测量, 即测量各个基站所在小区当中相应的参量, 并根据预设 算法对各小区测出的参量进行计算, 从而得到各基站所在小区的信道质量。
执行模块 302 ,用于接收所述网络中心控制节点的 MAC层返回的 MAC层切 换命令, 并根据接收到的 MAC层切换命令进行小区切换, 其中, 所述 MAC层 切换命令包含切换指示和切换目的小区的地址信息。
需要说明的是, 网络中心控制节点的 MAC层可以将切换指示设置于 MAC 层切换命令的包头部分, 将切换目的小区的地址信息设置于 MAC层切换命令 的数据部分; 进一步的, 切换指示可以通过在包头部分增加新元素来设置, 或 者通过所述包头部分已有元素的保留字段来设置。
本发明实施例提供的小区切换装置可以安装于用户设备当中,也可以通过 其它方式与用户设备建立通信。
由上可见,本发明实施例提供的用户设备小区切换装置中的测量模块将无 线通信***中各基站所在小区的信道质量进行测量,并将测量结果反馈给网络 中心控制节点, 从而网络中心控制节点可以根据信道质量结果进行切换判断, 并生成 MAC层切换命令, 进而装置中的执行模块根据从网络中心控制节点得 到 MAC层切换命令进行动作, 即是否进行小区切换以及切换的目的小区, 该 装置实现了用户设备在不同的小区端口之间快速灵活切换,切换过程筒单, 并 且切换成功率高。
实施例四、
本发明实施例还提供另一种用户设备小区切换装置, 参见图 6所示, 该装 置用于无线通信***中, 所述无线通信***包括同频和同小区标识, 并且共通 覆盖的多个基站, 所述装置包括: 接收模块 401 , 用于接收用户设备发送的信 道质量结果, 其中, 所述信道质量结果为所述用户设备测量的所述多个基站各 自所在小区的信道质量; 生成模块 402, 用于根据所述信道质量结果生成 MAC 层切换命令, 并将所述 MAC层切换命令发送给所述用户设备的 MAC层, 使得 所述用户设备根据接收到的 MAC层切换命令进行小区切换, 其中, 所述 MAC 层切换命令中包含切换指示和切换目的小区的地址信息。
从而, 用户设备根据接受到的 MAC层切换命令进行小区切换。
具体的, 生成模块用于将所述切换指示设置于所述 MAC层切换命令的包 头部分, 将所述切换目的小区的地址信息设置于所述 MAC层切换命令的数据 部分。进一步的, 所述生成模块可以通过在所述包头部分增加新元素来设置所 述切换指示, 或者通过已有元素的保留字段来设置所述切换指示。
进一步的 ,所述生成模块还用于向网络中心控制节点的 RRC层发送第二指 示, 所述第二指示表示所述生成模块发送了 MAC层切换命令。
其中, 所述切换目的小区的地址信息包括导频扩频码、导频索引和端口号 中的任意一个。
由上可见, 本发明实施例提供的用户设备小区切换装置中的生成模块 402 根据接收模块 401接收到的信道质量结果生成 MAC层切换命令, 并发送给用户 设备, 该 MAC层切换命令中包含了切换指示和切换目的小区的地址信息, 从 而用户设备根据该 MAC层切换命令进行小区切换, 该装置的实现过程筒单, 并且保证了切换成功率。
实施例五、
本发明实施例还提供一种用户设备小区切换装置, 用于无线通信***中, 所述无线通信***包括同频和同小区标识, 并且共通覆盖的多个基站, 所述装 置包括:
接收器, 用于接收用户设备发送的信道质量结果, 其中, 所述信道质量结 果为所述用户设备测量的所述多个基站各自所在小区的信道质量;
处理器,用于根据所述信道质量结果生成 MAC层切换命令,并将所述 MAC 层切换命令发送给所述用户设备的 MAC层, 其中, 所述 MAC层切换命令包含 切换指示和切换目的小区的地址信息。
具体的, 所述处理器用于将所述切换指示设置于所述 MAC层切换命令的 包头部分, 将所述切换目的小区的地址信息设置于所述 MAC层切换命令的数 据部分。进一步的, 所述处理器可以通过在所述包头部分增加新元素来设置所 述切换指示, 或者通过已有元素的保留字段来设置所述切换指示。
其中, 所述切换目的小区的地址信息包括导频扩频码、导频索引和端口号 中的任意一个。
由上可见,本发明实施例提供的用户设备小区切换装置中的处理器根据接 收器接收到的信道质量结果生成 MAC层切换命令,并发送给用户设备,该 MAC 层切换命令中包含了切换指示和切换目的小区的地址信息,从而用户设备根据 该 MAC层切换命令进行小区切换, 该装置的实现过程筒单, 并且保证了切换 成功率。
实施例六、
本发明实施例还提供一种用户设备小区切换***, 用于无线通信***中, 该无线通信***包括同频和同小区标识, 并且共通覆盖的多个基站, 该切换系 统包括本发明实施例三提供的用户设备小区切换装置和实施例四提供的用户 设备小区切换装置。
具体的, 参见图 7所示, 本发明实施例提供的用户设备小区切换***包括: 测量模块 301、 用于对无线通信***中多个基站各自所在小区的信道质量进行 测量, 并将测量到的信道质量结果上报给接收模块 401; 接收模块 401、 用于接 收测量模块 301发送的信道质量结果; 生成模块 402、 用于根据接收到的信道 质量结果生成 MAC层切换命令,并将 MAC层切换命令发送给执行模块 302,其 中, MAC层切换命令中包含切换指示和切换目的小区的地址信息; 执行模块 302、 用于根据接收到的 MAC层切换命令进行小区切换。
由上可见, 本发明实施例提供的用户设备小区切换***中的测量模块 301 将无线通信***中各基站所在小区的信道质量进行测量,并将测量结果反馈给 接收模块 401 , 从而生成模块 402可以根据接收模块 401接收到的信道质量结果 进行切换判断,并生成 MAC层切换命令,进而执行模块 302根据从生成模块 402 得到 MAC层切换命令进行动作, 即是否进行小区切换以及切换目的小区的地 址信息, 该***实现了用户设备在不同的小区端口之间快速灵活切换,切换过 程筒单, 并且切换成功率高。
实施例七
本发明实施例还提供另一种用户设备小区切换***, 用于无线通信*** 中, 该无线通信***包括同频和同小区标识 id, 并且共通覆盖的多个基站, 该 ***包括: 输入装置、 输出装置、 存储装置和处理装置。
所述输入装置, 用于对所述多个基站各自所在小区的信道质量进行测量, 并将测量到的信道质量结果上 4艮给网络中心控制节点的物理层。
所述输出装置,用于根据所述网络中心控制节点的物理层接收到的信道质 量结果生成 MAC层切换命令,并将所述 MAC层切换命令发送给处理器,其中, 所述 MAC层切换命令中包含切换指示和切换目的小区的地址信息。
所述处理装置, 用于根据接收到的 MAC层切换命令进行小区切换。
具体的,所述输出装置通过在所述包头部分增加新元素来设置所述切换指 示, 或者通过已有元素的保留字段来设置所述切换指示。
其中, 所述切换目的小区的地址信息包括导频扩频码、导频索引和端口号 中的任意一个。
由上可见,本发明实施例提供的用户设备小区切换***中的输入模块将无 线通信***中各基站所在小区的信道质量进行测量,并将测量结果反馈给网络 中心控制节点,从而输出装置根据网络中心控制节点接收到的信道质量结果生 成 MAC层切换命令, 并传递给处理器, 从而处理器根据 MAC层切换命令进行 小区切换, 实现了在不同的小区端口之间的快速灵活切换, 切换过程筒单, 并 且切换成功率高。进一步需要说明的是, 本发明实施例中所说的共通覆盖包括 图 8和图 9所示的两种场景: 图 8表示宏基站的覆盖区与微基站的覆盖区部分重 叠, 图 9表示微基站的覆盖区位于宏基站的覆盖区域之内。
所属领域的技术人员可以清楚地了解到, 为描述的方便和筒洁,仅以上述 各功能模块的划分进行举例说明, 实际应用中, 可以根据需要而将上述功能分 配由不同的功能模块完成, 即将装置的内部结构划分成不同的功能模块, 以完 成以上描述的全部或者部分功能。上述描述的***, 装置和单元的具体工作过 程, 可以参考前述方法实施例中的对应过程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的***, 装置和方 法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示意性 的, 例如, 所述模块或单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可 以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系 统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间的耦 合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信 连接, 可以是电性, 机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为 单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者 也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部 单元来实现本实施例方案的目的。
另外, 在本申请各个实施例中的各功能单元可以集成在一个处理单元中, 也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元 中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的 形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售 或使用时, 可以存储在一个计算机可读取存储介质中。基于这样的理解, 本申 请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全 部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储 介质中, 包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器, 或者网络设备等)或处理器(processor )执行本申请各个实施例所述方法的全 部或部分步骤。 而前述的存储介质包括: U盘、移动硬盘、 只读存储器(ROM, Read-Only Memory ), 随机存取存储器(RAM, Random Access Memory ), 磁 碟或者光盘等各种可以存储程序代码的介质。
以上所述, 以上实施例仅用以对本申请的技术方案进行了详细介绍,但以 上实施例的说明只是用于帮助理解本发明的方法及其核心思想,不应理解为对 本发明的限制。本技术领域的技术人员在本发明揭露的技术范围内, 可轻易想 到的变化或替换, 都应涵盖在本发明的保护范围之内。

Claims

权 利 要 求
1、 一种用户设备小区切换方法, 用于无线通信***中, 其特征在于, 所 述无线通信***包括同频和同小区标识, 并且共通覆盖的多个基站, 所述方法 包括:
用户设备对所述多个基站各自所在小区的信道质量进行测量,并将测量到 的信道质量结果上报给网络中心控制节点;
接收所述网络中心控制节点的媒体访问控制层 MAC返回的 MAC层切换命 令, 所述 MAC层切换命令包含切换指示和切换目的小区的地址信息;
根据接收到的 MAC层切换命令进行小区切换。
2、 根据权利要求 1所述的方法, 其特征在于, 所述切换指示设置于所述
MAC层切换命令的包头部分, 所述切换目的小区的地址信息设置于所述 MAC 层切换命令的数据部分。
3、根据权利要求 2所述的方法, 其特征在于, 所述切换指示通过在所述包 头部分增加新元素来设置, 或者通过所述包头部分已有元素的保留字段来设 置。
4、根据权利要求 1所述的方法, 其特征在于, 所述切换目的小区的地址信 息包括导频扩频码、 导频索引和端口号中的任意一个。
5、 根据权利要求 1或 2所述的方法, 其特征在于, 所述方法还包括: 所述用户设备的 MAC层接收到所述 MAC层切换命令后, 向所述用户设备 的 RRC层发送第一指示, 所述第一指示表示所述用户设备的 MAC层收到了 MAC层切换命令。
6、 一种用户设备小区切换方法, 用于无线通信***中, 其特征在于, 所 述无线通信***包括同频和同小区标识, 并且共通覆盖的多个基站, 所述方法 包括:
网络中心控制节点接收用户设备发送的信道质量结果, 其中, 所述信道质 量结果为所述用户设备测量的所述多个基站各自所在小区的信道质量;
所述网络中心控制节点的 MAC层根据所述信道质量结果生成 MAC层切换 命令, 并将所述 MAC层切换命令发送给所述用户设备的 MAC层, 其中, 所述 MAC层切换命令包含切换指示和切换目的小区的地址信息。
7、 根据权利要求 6所述的方法, 其特征在于, 所述切换指示设置于所述 MAC层切换命令的包头部分, 所述切换目的小区的地址信息设置于所述 MAC 层切换命令的数据部分。
8、根据权利要求 7所述的方法, 其特征在于, 所述切换指示通过在所述包 头部分增加新元素来设置, 或者通过已有元素的保留字段来设置。
9、根据权利要求 6所述的方法, 其特征在于, 所述切换目的小区的地址信 息包括导频扩频码、 导频索引和端口号中的任意一个。
10、 根据权利要求 6或 7所述的方法, 其特征在于, 所述方法还包括: 所述网络中心控制节点的 MAC层向所述网络中心控制节点的 RRC层发送 第二指示, 所述第二指示表示所述网络中心控制节点的 MAC层发送了 MAC层 切换命令。
11、 一种用户设备小区切换装置, 用于无线通信***中, 其特征在于, 所 述无线通信***包括同频和同小区标识, 并且共通覆盖的多个基站, 所述装置 包括:
测量模块, 用于对所述多个基站各自所在小区的信道质量进行测量, 并将 测量到的信道质量结果上报给网络中心控制节点;
执行模块, 用于接收所述网络中心控制节点的 MAC层返回的 MAC层切换 命令, 并根据接收到的 MAC层切换命令进行小区切换, 其中, 所述 MAC层切 换命令包含切换指示和切换目的小区的地址信息。
12、 根据权利要求 11所述的装置, 其特征在于, 所述执行模块还用于当接 收到所述 MAC层切换命令后, 向所述用户设备的 RRC层发送第一指示, 所述 第一指示表示所述用户设备收到了 MAC层切换命令。
13、 根据权利要求 11所述的装置, 其特征在于, 所述切换目的小区的地址 信息包括导频扩频码、 导频索引和端口号中的任意一个。
14、 一种用户设备小区切换装置, 用于无线通信***中, 其特征在于, 所 述无线通信***包括同频和同小区标识, 并且共通覆盖的多个基站, 所述装置 包括:
接收模块, 用于接收用户设备发送的信道质量结果, 其中, 所述信道质量 结果为所述用户设备测量的所述多个基站各自所在小区的信道质量; 生成模块, 用于根据所述信道质量结果生成 MAC层切换命令, 并将所述 MAC层切换命令发送给所述用户设备的 MAC层, 其中, 所述 MAC层切换命令 包含切换指示和切换目的小区的地址信息。
15、 根据权利要求 14所述的装置, 其特征在于, 所述生成模块用于将所述 切换指示设置于所述 MAC层切换命令的包头部分, 将所述切换目的小区的地 址信息设置于所述 MAC层切换命令的数据部分。
16、 根据权利要求 15所述的装置, 其特征在于, 所述生成模块通过在所述 包头部分增加新元素来设置所述切换指示,或者通过已有元素的保留字段来设 置所述切换指示。
17、 根据权利要求 14或 15所述的装置, 其特征在于, 所述生成模块还用于 向网络中心控制节点的 RRC层发送第二指示,所述第二指示表示所述生成模块 发送了 MAC层切换命令。
18、 根据权利要求 14所述的装置, 其特征在于, 所述切换目的小区的地址 信息包括导频扩频码、 导频索引和端口号中的任意一个。
19、 一种用户设备小区切换装置, 用于无线通信***中, 其特征在于, 所 述无线通信***包括同频和同小区标识, 并且共通覆盖的多个基站, 所述装置 包括:
接收器, 用于接收用户设备发送的信道质量结果, 其中, 所述信道质量结 果为所述用户设备测量的所述多个基站各自所在小区的信道质量;
处理器,用于根据所述信道质量结果生成 MAC层切换命令,并将所述 MAC 层切换命令发送给所述用户设备的 MAC层, 其中, 所述 MAC层切换命令包含 切换指示和切换目的小区的地址信息。
20、 根据权利要求 19所述的装置, 其特征在于, 所述处理器用于将所述切 换指示设置于所述 MAC层切换命令的包头部分, 将所述切换目的小区的地址 信息设置于所述 MAC层切换命令的数据部分。
21、 根据权利要求 20所述的装置, 其特征在于, 所述处理器通过在所述包 头部分增加新元素来设置所述切换指示,或者通过已有元素的保留字段来设置 所述切换指示。
22、 根据权利要求 19所述的装置, 其特征在于, 所述切换目的小区的地址 信息包括导频扩频码、 导频索引和端口号中的任意一个。
23、 一种用户设备小区切换***, 用于无线通信***中, 其特征在于, 所 述无线通信***包括同频和同小区标识, 并且共通覆盖的多个基站, 所述*** 包括: 输入装置、 输出装置、 存储装置和处理装置;
所述输入装置, 用于对所述多个基站各自所在小区的信道质量进行测量, 并将测量到的信道质量结果上 给网络中心控制节点;
所述输出装置,用于根据所述网络中心控制节点接收到的信道质量结果生 成 MAC层切换命令,并将所述 MAC层切换命令发送给处理器,其中,所述 MAC 层切换命令中包含切换指示和切换目的小区的地址信息;
所述处理装置, 用于根据接收到的 MAC层切换命令进行小区切换。
24、 根据权利要求 23所述的***, 其特征在于, 所述输出装置用于将所述 切换指示设置于所述 MAC层切换命令的包头部分, 将所述切换目的小区的地 址信息设置于所述 MAC层切换命令的数据部分。
25、 根据权利要求 24所述的***, 其特征在于, 所述输出装置通过在所述 包头部分增加新元素来设置所述切换指示,或者通过已有元素的保留字段来设 置所述切换指示。
26、 根据权利要求 23所述的***, 其特征在于, 所述切换目的小区的地 址信息包括导频扩频码、 导频索引和端口号中的任意一个。
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