WO2013004162A1 - 通信方法、设备及系统 - Google Patents
通信方法、设备及系统 Download PDFInfo
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- WO2013004162A1 WO2013004162A1 PCT/CN2012/078056 CN2012078056W WO2013004162A1 WO 2013004162 A1 WO2013004162 A1 WO 2013004162A1 CN 2012078056 W CN2012078056 W CN 2012078056W WO 2013004162 A1 WO2013004162 A1 WO 2013004162A1
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- Prior art keywords
- network
- terminal
- indication
- service
- traffic
- Prior art date
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- 238000004891 communication Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 88
- 238000012544 monitoring process Methods 0.000 claims abstract description 42
- 238000005259 measurement Methods 0.000 claims description 48
- 230000007704 transition Effects 0.000 claims description 34
- 230000009977 dual effect Effects 0.000 claims description 6
- 230000005012 migration Effects 0.000 claims description 4
- 238000013508 migration Methods 0.000 claims description 4
- 230000011664 signaling Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 15
- 230000001960 triggered effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
-
- 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
- H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
- H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the embodiments of the present invention relate to communication technologies, and in particular, to a communication method, device, and system. Background technique
- Single RAN Single Radio Access Network
- GSM Global System for Mobile Communications
- UMTS Universal Mobile Telecommunications System
- HSPA High Speed Packet Access
- LTE Long Term Evolution
- LTE Long Term Evolution
- the network side communication device broadcast system message occupies a large amount of radio resources, and in order to ensure coverage, the network side communication device always transmits at maximum power. Therefore, in the Single RAN, the power consumption of the network side communication device will become larger and larger.
- the invention provides a communication method, device and system, which reduce the power consumption of the network side communication device and reduce unnecessary energy waste.
- An aspect of the present invention provides a communication method, including:
- the terminal in the first network has a second network service requirement; the first network is covered by the second network; the average data transmission rate of the second network is higher than the average data transmission of the first network Rate, all common physical channels or partial common physical channels except the pilot channel in the second network are in a closed state; when the terminal has a second network service requirement, sending, to the terminal, the second network And a network switching indication of the configuration information, where the network switching indication is used to indicate that the terminal switches from the first network to the second network.
- Another aspect of the present invention also provides a communication method, including:
- the terminal Monitoring whether the terminal in the second network has a second network service requirement; the first network is covered by the second network; the average data transmission rate of the second network is higher than the average data transmission rate of the first network, All the common physical channels or part of the common physical channels except the pilot channel in the second network are in a closed state; when the terminal does not have the second network service requirement, the terminal sends the first network configuration information to the terminal.
- the network switching indication or the status transition indication is sent to the terminal; the network switching indication is used to indicate that the terminal switches from the second network to the first network, and the state transition indication is used to indicate that the terminal
- the state of the second network dedicated channel migrates to a state that does not occupy the second network dedicated channel.
- a further aspect of the present invention provides a network side communication device, including:
- a first monitoring module configured to monitor whether a terminal in the first network has a second network service requirement; the first network is covered by the second network; and an average data transmission rate of the second network is higher than the An average data transmission rate of the first network, where all common physical channels or partial common physical channels except the pilot channel in the second network are in a closed state; a first handover indication module, where the terminal has a second network Sending to the terminal, including the second, when the service demands And a network switching indication, where the network switching indication is used to indicate that the terminal switches from the first network to the second network.
- Another aspect of the present invention provides a network side communication device, including:
- a second monitoring module configured to monitor whether a terminal in the second network has a second network service requirement; the first network is covered by the second network; and the average data transmission rate of the second network is higher than the first An average data transmission rate of the network, in which all common physical channels or a part of the common physical channels except the pilot channel are in a closed state; and a second handover indication module, where the terminal does not have a second network service requirement Transmitting, by the terminal, a network switching indication that includes the first network configuration information, or sending a state transition indication to the terminal, where the network switching indication is used to indicate that the terminal switches from the second network to the first network, The state transition indication is used to indicate that the terminal migrates from a state occupying the second network dedicated channel to a state that does not occupy the second network dedicated channel.
- Another aspect of the present invention provides a terminal, including:
- a first service requesting module configured to send, by the terminal, a service request to the network side device of the first network in the first network;
- the average data transmission rate of the second network is higher than the average data transmission rate of the first network, the second All common physical channels or partial common physical channels except the pilot channel in the network are in a closed state;
- the first handover indication receiving module is configured to receive the network of the first network when the terminal has a second network service requirement And a network switching indication that is sent by the side device, where the network switching indication is used to instruct the terminal to switch from the first network to the second network.
- Another aspect of the present invention provides a terminal, including:
- a second service requesting module configured to send, by the second network, a service request to a network side device of the second network, where the average data transmission rate of the second network is higher than an average data transmission rate of the first network, All common physical channels or partial common physical channels except the pilot channel in the second network are in a closed state;
- the second handover indication receiving module is configured to receive the network of the second network when the terminal does not have the second network service requirement
- the first device sends the first network a network switching indication of the configuration information or a state transition indication is sent to the terminal; the network switching indication is used to indicate that the terminal switches from the second network to the first network, and the state transition indication is used to indicate that the terminal is occupied
- the state of the second network dedicated channel migrates to a state that does not occupy the second network dedicated channel.
- Another aspect of the present invention provides a communication system, including:
- a network side device of the first network configured to send a network handover indication to the terminal when the terminal has a second network service requirement in the first network, to indicate that the terminal switches from the first network to the first network;
- the first network is covered by the second network;
- the average data transmission rate of the second network is higher than the average data transmission rate of the first network, and all public except the pilot channel in the second network
- the physical channel or the part of the common physical channel is in a closed state;
- the network side device of the second network is configured to send, when the terminal in the second network does not have the second network service requirement, send the first network configuration information to the terminal
- the network switching indication or the status transition indication is sent to the terminal; the terminal is instructed to switch from the second network to the first network, and the state transition indication is used to indicate that the terminal is in a state of occupying the second network dedicated channel.
- the terminal is configured to access from the first network, and in the a network initiates a service request; after receiving the network handover indication sent by the network side device of the first network, switching from the first network to the second network; after receiving the network handover indication sent by the network side device of the second network, The second network is switched to the first network.
- the communication method, the device and the system of the embodiment of the present invention reduce the power consumption of the second network device to reduce the power consumption of the second network device when the first network and the second network are in the same coverage, and the base station of the second network All common physical channels except the pilot channel in the second network are closed, and the terminal can only access and initiate services in the first network.
- the network side device monitoring terminal of the first network has the second network service requirement
- the first network switching indication including the second network configuration information is sent to the terminal, and the terminal is triggered to switch from the first network to the second network.
- the second network allocates a dedicated channel for the terminal to perform high-rate data transmission on the dedicated channel.
- the second network Since the second network closes the common physical channel except the pilot channel, the second network is prevented from continuously transmitting.
- the overhead generated by the broadcast signaling reduces the power consumption and the transmission power of the communication device on the second network side, thereby reducing the neighboring interference and obtaining the capacity gain of the uplink and the downlink.
- FIG. 1 is a flowchart of a communication method according to an embodiment of the present invention
- FIG. 3 is a flowchart of still another communication method according to an embodiment of the present invention.
- FIG. 5 is a flowchart of still another communication method according to an embodiment of the present invention.
- FIG. 6A is a schematic structural diagram of a network side communication device according to an embodiment of the present invention
- FIG. 6B is a schematic structural diagram of another network side communication device according to an embodiment of the present invention
- FIG. 6C is another network according to an embodiment of the present invention
- FIG. 7A is a schematic structural diagram of another network side communication device according to an embodiment of the present invention
- FIG. 7B is a schematic structural diagram of a network side communication device according to an embodiment of the present invention
- FIG. 8B is a schematic structural diagram of another terminal according to an embodiment of the present disclosure.
- FIG. 8C is a schematic structural diagram of a first handover indication receiving module in FIG. 8A or FIG. 8B;
- FIG. 8 is a schematic structural diagram of still another terminal according to an embodiment of the present disclosure.
- FIG. 9 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
- the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
- the average transmission rate, or system capacity, etc. may be different.
- the third generation (3 generation, 3G) network has high speed and large capacity compared to the second generation (2 generation, 2G) network.
- the first network and the second network in different systems are taken as an example.
- the second network has a high rate and a large capacity with respect to the first network, and the channel of the second network is compared with the first network. , suitable for carrying business with bursty nature of business. If the data service is carried as much as possible on the second network, the user can obtain a high-rate, low-latency service.
- the second network throughput rate will be significantly reduced relative to the total bearer data service due to the delay of the voice service. Therefore, when the first network and the second network jointly cover the cell, starting from the requirements of resource utilization efficiency, user service shield (QoS), and green energy saving, flexible setting can be performed based on network characteristics, so that the terminal is initially initialized from the first network. Access, when there is a data service demand reaching the threshold, it is transferred to the second network.
- QoS user service shield
- the first network when the second network is a 4th generation (4G, 4G) network, the first network may be a 3G network or a 2G network; or when the second network is a 3G network, the first network may be When the second network is a higher-level evolved network of the 4G network, the first network may be any one of 4G, 3G, or 2G. In an embodiment of the present invention, the first network and the second network are not particularly limited to one of a 2G, 3G, or 4G network. When there is a more advanced evolved network or other heterogeneous network, the embodiment of the present invention The method provided can still be applied.
- the average transmission rate of the second network is higher than the average transmission rate of the first network, and the system capacity of the second network can also be greater than the system capacity of the first system.
- the average transmission rate of the second network is higher than the average transmission rate of the first network, which means that the transmission rate of the second network is higher than the transmission rate of the first network under normal conditions, or the average transmission rate of the second network is high. Yu The average of the transmission rates of the first network.
- the transmission rate of the first network may be higher than the transmission rate of the second network, but this is not the case. In a normal situation, the transmission rate of the second network is higher than the transmission rate of the first network, or the average transmission rate of the second network is higher than the average transmission rate of the first network.
- the 4G network may be, for example, an LTE or LTE Advanced (LTE Advanced) network
- the 3G network may be, for example, a UMTS network
- the 2G network may be, for example, a GSM network.
- the enumerated network is only It is a specific embodiment, and the present invention is not limited thereto.
- the terminal when the terminal needs to support different network standards, the terminal may be a multi-mode terminal.
- the division of the network of 2G, 3G, 4G or higher network standards can be confirmed by those skilled in the art with reference to the consensus and experience of the communication industry.
- the same coverage may include co-site total coverage.
- two or more heterogeneous networks that are covered may be merged into the same single RAN, and a single network element may be encapsulated with different heterogeneous types.
- a module of a network side device function of the network, and a module having a network side device function may be a physical module or a logic module.
- the modules of the network side device functions of different heterogeneous networks can be connected through interfaces to share information, such as the load of each network, system broadcast messages, and the like.
- a single network element may include a Base Station Controller (BSC) module of a GSM network and a Radio Network Controller (RNC) module of a UMTS network, and the BSC module and the RNC module may pass the Iur.
- BSC Base Station Controller
- RNC Radio Network Controller
- the -g interface connects to implement information sharing.
- two or more heterogeneous networks covered by the same may be purely common coverage, that is, the coverage is the same, but the network side devices of different heterogeneous networks are not co-sites.
- the Iur-g interface is a newly added interface between the BSC and the RNC for interoperability and information sharing of 2G network/3G networks.
- the BSC and the RNC are packaged into a Multiple Base Station Controller (MBSC) through the Iur-g interface.
- MBSC Multiple Base Station Controller
- Interoperability of 2G network/3G network For example, the RNC does not need to know the load of the target cell through the CN, and the RNC obtains directly from the BSC through the Iur-g port.
- Passing messages inside MBSC 2G network cells and 3G network cells in MBSC broadcast their own information, each network cell can pass The MBSC receives information from other cells and periodically updates the information. The content of the broadcast information can be controlled by the operator itself, so it is convenient to add new content and the scalability is better. Whether the 2G network and the 3G network are switched is determined by the broadcast information, not by the load; the information of other cells can be known before the handover, thereby determining the target cell.
- FIG. 1 is a flowchart of a communication method according to an embodiment of the present invention. As shown in FIG. 1, the communication method in the heterogeneous network provided by this embodiment includes:
- Step 11 The network side device of the first network monitors whether the terminal has a service requirement of the second network; the first network is covered with the second network; the average data transmission rate of the second network is higher than the average data transmission rate of the first network, All common physical channels or partial common physical channels except the pilot channel in the second network are in a closed state.
- the network side device of the second network opens the pilot channel in the second network, and closes all common physical channels or parts except the pilot channel in the second network.
- a common physical channel to reduce the transmission overhead of broadcast signaling on the network side device of the second network.
- closing part of the channel or all channels may be referred to as channel clipping.
- the network may be said to be in the channel clipping mode.
- the second network may be considered to be in the channel clipping mode in the embodiment of the present invention.
- the second network After the second network enters the channel cropping mode, the initial access of the terminal, the camping of the idle state terminal, and the cell reselection of the terminal in the first network with the second network as the target network are not supported.
- the second network cannot support the initial access of the terminal, and even if the signal quality of the second network is good, the newly booted terminal cannot reside. Therefore, after the second network is in the channel clipping mode, the terminal can only be accessed by the first network, and initiates related services, such as paging services and data services, on the first network.
- the pilot channel of the second network is in an open state, providing the terminal with a measurement service of the second network signal quality.
- Step 12 If the terminal has the second network service requirement, the network side device of the first network sends a network handover indication including the second network configuration information to the terminal, where the network handover indication is used to indicate that the terminal switches from the first network to the second network.
- the first network After the terminal is powered on, the first network enters the connection state, and the network side device of the first network initiates a service.
- the network side device of the first network monitors whether the terminal has a second network service requirement, so as to trigger the terminal to cut into the second network.
- the network switching instruction including the second network configuration information is sent to the terminal, and the terminal is triggered to cut into the second network.
- the network side device of the first network may have multiple methods for monitoring whether the terminal has a second network service requirement. The following examples are as follows:
- the network side device of the first network monitors whether the data traffic of the terminal reaches a traffic threshold. When the data traffic of the terminal reaches the traffic threshold, it is determined that the terminal has the service requirement of the second network.
- the traffic threshold may be determined according to actual communication conditions and communication requirements, and may also be determined according to the experience of those skilled in the art.
- the terminal may carry a network handover request in the service request to request to cut into the second network.
- the network side device of the first network receives the service request of the terminal, and detects that the network request is carried in the service request, and determines that the terminal has the second network service requirement.
- the terminal can monitor the data traffic of the terminal, and send a traffic notification message to the network side device of the first network when the data traffic reaches the traffic threshold, and the network side device of the first network receives the service of the terminal. After the notification message, it is determined that the terminal has a second network service requirement.
- the second network is a 3G network
- the first network is a 2G network.
- the state of the terminal in the 2G network includes an idle state and a connection state.
- the terminal is in a non-CELL_DCH state when it migrates to the 3G network in the idle state on the 2G network.
- the non-CELL_DCH status of the terminal in the 3G network includes the idle, URA_PCH, CELL_PCH, and CELL_FACH states.
- the terminal migrates to the 3G network in the connected state in the 2G network, it is in the CELL_DCH state in the 3G network. After the 3G network is in the channel clipping mode, the terminal in the non-CELL_DCH state cannot be maintained.
- the terminal in the CELL-DCH state is allocated with a dedicated physical channel and a transmission channel, and the terminal performs data transmission on the dedicated channel without random access or reading system messages. Therefore, the 3G network is not in the channel clipping mode. It will affect the data service of the terminal in the CELL-DCH state. Therefore, the 3G network only maintains the CELL-DCH state. Terminal.
- the CELL_DCH state, the non-CELL_DCH state, and the idle, URA_PCH, CELL_PCH, and CELL_FACH states may refer to the description in the 3GPP specifications.
- the terminal After the terminal is powered on, it resides on the 2G network and enters the connection state. It initiates Circuit Switched (CS) service and data service to the BSC of the 2G network.
- the data service may include Packet Switched (PS) service and dual. Dual Transmission Mode (DTM) service.
- PS Packet Switched
- DTM Dual Transmission Mode
- the BSC monitors whether the terminal has 3G network service requirements to trigger the terminal to cut into the 3G network.
- the BSC can monitor the terminal for 3G network service requirements in various ways. The following examples illustrate:
- the BSC monitors whether the data traffic of the terminal reaches a traffic threshold.
- the traffic threshold may be a threshold that the data traffic needs to reach when the terminal migrates from the non-CELL_DCH state to the CELL_DCH state in the 3G network.
- the terminal may carry a network handover request in the service request to request to cut into the 3G network.
- the BSC determines that the terminal has a 3G network service requirement when the service request carries a network handover request.
- the terminal can monitor the data traffic of the terminal, and send a traffic notification message to the BSC when the data traffic reaches the traffic threshold. After receiving the traffic notification message of the terminal, the BSC determines that the terminal has a 3G network service requirement.
- the terminal When the BSC monitoring terminal has the 3G network service requirement, the terminal sends a network switching indication including the 3G network configuration information to the terminal, and triggers the terminal to cut into the 3G network.
- the 3G network configuration information may be obtained by the BSC interacting with the Radio Network Controller (RNC) of the 3G network when monitoring the 3G network service requirement of the terminal, or may be monitored by the terminal having a 3G network.
- RNC Radio Network Controller
- the BSC is acquired when interacting with the RNC.
- the connection state in the 2G network is changed to the CELL-DCH state in the 3G network, and the 3G network allocates a dedicated channel for the terminal in the CELL_DCH state to perform high-speed data on the dedicated channel. Transmission. Since the 3G network only maintains the terminal in the CELL_DCH state, the related signaling for maintaining the non-CELL_DCH state is avoided, and unnecessary power waste is reduced.
- the network side device of the second network closes the second network.
- the terminal can only access and initiate services in the first network.
- the network side device monitoring terminal of the first network has the second network service requirement
- the first network switching indication including the second network configuration information is sent to the terminal, and the terminal is triggered to switch from the first network to the second network.
- the second network allocates a dedicated channel for the terminal to perform high-rate data transmission on the dedicated channel.
- the second network closes the common physical channel except the pilot channel, the overhead generated by the second network continuously transmitting the broadcast signaling is avoided, and the power consumption and the transmission power of the second network side communication device are reduced, thereby being Neighbor interference, and the capacity gain of the uplink and downlink can be obtained.
- FIG. 2 is a flowchart of another communication method according to an embodiment of the present invention. As shown in FIG. 2, the communication method of the heterogeneous network provided by this embodiment includes:
- Step 21 The network side device of the second network monitors whether the terminal in the second network has a service requirement of the second network.
- the first network is covered with the second network.
- the average data transmission rate of the second network is higher than that of the first network.
- the average data transmission rate, all common physical channels or partial common physical channels except the pilot channel in the second network are in a closed state.
- Step 22 If the terminal does not have the second network service requirement, send a network handover indication including the first network configuration information to the terminal or send a state transition indication to the terminal, where the network handover indication is used to indicate that the terminal switches from the second network to the first network.
- the state transition indication is used to indicate that the terminal migrates from a state occupying the second network dedicated channel to a state that does not occupy the second network dedicated channel.
- the second network allocates a dedicated channel to the terminal, so that the terminal performs high-speed data transmission with respect to the first network on the dedicated channel.
- the network side device of the second network sends a second network handover indication to the terminal, indicating that the terminal switches from the second network to the first network, One net The network maintains the terminal.
- the network side device of the second network may also send a state transition indication to the terminal, indicating that the terminal migrates from a state occupying the second network dedicated channel to a state not occupying the second network dedicated channel.
- the second network is a 3G network
- the first network is a 2G network.
- the 3G network allocates a dedicated channel to the terminal to enter the CELL_DCH state.
- a terminal in the CELL_DCH state performs high-rate data transmission on a dedicated channel.
- the RNC also monitors whether the terminal has 3G network service requirements, so that the terminal does not have 3G network service requirements to trigger the terminal to cut into the 2G network.
- the RNC can monitor the terminal for 3G network service requirements in various ways. The following examples illustrate:
- the RNC monitors whether the traffic of the terminal is less than the traffic threshold. When the traffic of the terminal is less than the traffic threshold, the terminal determines that the terminal does not have the 3G network service requirement.
- the traffic threshold may be a traffic threshold when the terminal migrates from the CELL_DCH state to the non-CELL_DCH state in the 3G network.
- the terminal may carry the first network handover request in the data service request to request to cut into the 2G network.
- the RNC receives the data service request of the terminal and detects that the data service request carries the network handover request, it determines that the terminal does not have the 2G network service requirement.
- the terminal can monitor the traffic of the terminal, and send a traffic notification message to the RNC when the traffic is less than the traffic threshold. After receiving the traffic notification message of the terminal, the RNC determines that the terminal does not have the 3G network service requirement.
- the RNC sends a network handover indication to the terminal, instructing the terminal to switch from the 3G network to the 2G network, and the terminal maintains the 2G network.
- the RNC of the 3G network may also send a state transition indication to the terminal, indicating that the terminal migrates to the non-connected state of the 2G network, or migrates to the non-CELL_DCH state of the 3G network.
- the terminal in the non-CELL_DCH state resides on the 3G network.
- the terminal determines that the poor quality of the 3G network triggers cell reselection to enter the 2G network.
- the second network indicates that the terminal migrates from the state occupying the second network dedicated channel to the state that does not occupy the second network dedicated channel, or indicates The terminal cuts into the first network, so that the second network does not need to maintain the terminal with less traffic, which saves the wireless resources of the second network.
- the second network closes all the common physical channels except the pilot channel, the overhead generated by the second network continuously transmitting the broadcast signaling is avoided, and the power consumption and the transmit power of the second network side communication device are reduced, thereby Reduce neighbor interference and gain upper and lower capacity gains.
- the following embodiments illustrate a communication method of the heterogeneous network of the present invention by taking the case where the UMTS network and the GSM network are covered.
- the synchronization channel (Synchronization Channel) of the UMTS the Common Control Physical Channel (CCPCH), the Paging Indicator Channel (PICH), and the capture indication channel (Acquisition)
- the Indicator Channel (AICH) and the Uplink Random Access Channel (PRACH) are in the off state
- the Common Pilot Channel (CPICH) channel is open
- the GSM common physical channel is open. status.
- the CCPCH includes a primary common control physical channel (P-CCPCH) and a secondary common control physical channel (S-CCPCH);
- the CPICH includes: a primary common pilot channel (Primary) Common Pilot Channel, called P-CPICH) and Primary Common Pilot Channel (S-CPICH).
- the SCH channel mainly sends synchronization messages, which are used for cell search and synchronization of cells when the terminal initially accesses.
- the P-CCPCH carries an upper broadcast channel (BCH), which is mainly a system message.
- BCH broadcast channel
- the S-CCPCH mainly carries FACH and PCH channels.
- PICH is the paging indicator channel, used In the transmission of a paging indicator (Paging Indicator, the cylinder called PI).
- the terminals of Idle, URA_PCH, and CELL_PCH wake up to listen to the PI at the specified paging occasion.
- the AICH is used to carry a capture indicator of the network, and the indicator indicates that the prefix sent by the terminal through the PRACH has been detected by the system, and the PRACH message can be further sent.
- the PRACH channel is an uplink random access physical channel.
- a preamble is sent to the UMTS Terrestrial Radio Access Network (UTRAN) through the PRACH channel. Then go to the AICH channel to listen to the feedback information of the network.
- the open channel P-CPICH is a pilot channel, which is used to transmit the primary scrambling code of the cell, and is a power reference and a phase reference of other physical channels. In the FDD mode, when the cell is reselected or switched, the target cell passes the CPICH. Measurement of signal strength and signal quality.
- the terminal in the UMTS network is divided into terminals in the idle, URA-PCH, CELL_PCH, CELL-FACH, or CELL_DCH state according to the state.
- the state of the terminal in the embodiment of the present invention is different according to the requirements of the UMTS network resources.
- Non-CELL-DCH state terminals refer to terminals in the idle, URA_PCH, CELL_PCH, and CELL_FACH states, that is, other state terminals except the CELL_DCH state.
- the impact on the non-CELL_DCH state terminal After the common physical channel of the UMTS network is closed, the impact on the non-CELL_DCH state terminal: The SCH channel is closed, and the newly booted terminal cannot synchronize with the searched UMTS network, so it cannot stay in the UMTS network and continue the cell search. It is detected that the GSM network signal quality is good, so the terminal resides from the GSM network.
- the PICH channel is closed, and the non-CELL-DCH terminal resides in the UMTS network, and needs to wake up periodically to listen to the PICH at the respective paging moments to see if there is a paging of the group (the paging group where the terminal is located); PICH When the channel is closed, the non-CELL-DCH terminal will not find the PICH when it listens to the PICH at the paging moment. Therefore, it will be considered that there is a problem in the UMTS network, which will trigger the cell reselection; the CCPCH channel is closed, and the P-CCPCH is The bearer of system information, the terminal of non-CELL-DCH needs to read system information.
- the system message is automatically re-read; after the CCPCH is closed, the terminal cannot obtain the system message, and the cell is considered to be a barred cell, which will trigger cell reselection. Therefore, when the UMTS network closes the SCH/CCPCH/PICH/AICH/PRACH into the channel tailoring mode, there will be an impact on the initial access of the terminal, cell camping, measurement, handover, and initiation of services.
- the terminal For the CELL-DCH terminal, the terminal is assigned a dedicated physical channel and a dedicated transport channel, a dedicated logical channel.
- the dedicated logical channel can use Dedicated Control Channel (DCCH) and Dedicated Traffic Channel (DTCH) to transmit data on the dedicated transport channel without random access or interception of AICH. Listen to AI.
- the terminal does not need to read the system message.
- the RNC sends various configurations or bearer signaling in sequence on the dedicated channel, and finally configures the terminal.
- Paging Type 2 information (Paging Type 2 information is used to page the CELL-DCH terminal) is sent to the terminal on the DCCH, the Dedicated Channel (DCH), and the Dedicated Physical Control Channel (DPDCH). There is no need to listen to PICH and CCPCH. Therefore, after the UMTS network enters the channel tailoring mode, there is no impact on the service transmission and reception of the CELL_DCH state terminal. If the terminal of CELL_DCH loses synchronization in the serving cell, it will change to the CELL_FACH state. It can be seen from the above analysis that after the UMTS network enters the channel tailoring mode, the UMTS network cannot maintain the terminal in the non-CELL_DCH state, and therefore the terminal reselects to the GSM network.
- the CPICH channel is normally turned on. When it is necessary to measure the cell signal quality, only the P-CPICH channel needs to be completed.
- For the mobility of the terminal of CELL_DCH first consider the soft/hard handover between cells of the UMTS network. The terminal needs to perform signal quality measurement on the target cell of the handover before the handover.
- the UTRAN sends a Measurement Control message to the CELL-DCH terminal on the DCCH.
- the CPICH channel is normally turned on regardless of whether the target cell is in channel clipping mode.
- the terminal in the CELL_DCH state needs to complete the soft/hard handover, and only needs to have the P-CPICH channel support to complete the relevant measurement on the target cell, and the network configuration information of the target cell is sent by the source RNC.
- the terminal After the terminal is configured to the CELL_DCH that needs to be handed over, the terminal can directly switch to the past after the configuration information of the target cell is obtained. The entire process does not need the support of other physical channels of the target cell. Therefore, whether the source cell or the target cell of the handover, as long as the CPICH channel is reserved, the measurement support can be provided to the terminal of the CELL_DCH, and the handover behavior of the terminal is not affected.
- FIG. 3 is a flowchart of still another communication method according to an embodiment of the present invention. This embodiment describes how to perform network switching on the terminal for the CS service, the BSC of the GSM network, and the RNC of the UMTS network in the scenario where the UMTS network and the GSM network are in the same coverage.
- this embodiment includes:
- the cells of the GSM network and the cells of the UMTS network are mutually configured as neighbors.
- the cell of the UMTS network is configured as a neighboring cell in the different system neighbor list of the GSM system message, and includes the following information: UMTS cell ID, cell bandwidth, and frequency point information.
- the intra-frequency/inter-freq neighbor list in the system information or measurement control information of the UMTS network also includes: cell ID, primary scrambling code, frequency point, etc.; Inter-RAT neighbor
- the area list contains GSM cell related information: Cell individual offset, Band indicator, Broadcast Control Channel (BCCH) Absolute Radio Frequency Channel Number (ARFCN), etc. .
- the UMTS network closes the SCH, CCPCH, PICH, AICH, PRACH channels, opens the CPICH channel, and is in low power mode.
- the common physical channel of the GSM network is open.
- Step 1 The terminal starts up on the UMTS network and performs cell search.
- Step 2 The terminal accesses and camps on the GSM network.
- Step 3 When the data traffic of the terminal reaches the traffic threshold, the first traffic notification message is sent to the BSC of the GSM network.
- Step 4 The GSM network
- the BSC sends a first measurement indication to the terminal, instructing the terminal to measure the signal quality of the UMTS network.
- Step 5 The terminal sends a first measurement to the BSC, and notifies the BSC that the signal quality of the UMTS network reaches the quality threshold.
- the P-CPICH channel of the UMTS network Since the P-CPICH channel of the UMTS network is normally transmitted, it does not affect the signal quality measurement of the terminal to the UMTS network.
- the BSC may periodically send measurement indications to the terminal, and send a measurement report to the BSC when the terminal detects that the signal quality of the UMTS network reaches the quality threshold, and the BSC decides whether The network where the terminal resides is switched.
- Step 6 The BSC interacts with the RNC of the UMTS network to obtain UMTS network configuration information.
- the BSC of the GSM network interacts with the RNC of the UMTS network to obtain the UMTS network configuration information, and sends a network handover indication including the UMTS network configuration information to the terminal.
- the coverage of UMTS network and GSM includes two coverage modes: one is UMTS network and GSM co-site coverage, and the other is UMTS network and GSM pure common coverage.
- the UMTS network is co-covered with the GSM co-site, the UMTS network is the same as the GSM coverage.
- the BSC and UMTS network RNC of the GSM network in the same site are distributed in a hardware device and connected through an Iur-g. Realize the sharing of some information, such as the load of each network, system broadcast messages.
- the UMTS network When the UMTS network is completely covered by GSM, the UMTS network has the same coverage as GSM, but does not consider whether the base station is co-site or not, and the above Iur-g interface does not exist.
- the BSC of the GSM network passes through the Iur-g interface.
- the RNC of the UMTS network performs the handover interaction, and the UMTS network RNC sets the configuration information of the UMTS network cell: U-RNTI, Radio Bearer (RB) information, and radio access bearer.
- RB Radio Bearer
- RAB Radio Access Bearer
- the terminal ( handover command ) is sent to the terminal.
- the terminal initializes the signaling link, the RB and the transport channel, and the physical channel according to the UMTS network cell configuration passed in the HO Command. Based on the received information element "Maximum allowed UL TX power", the terminal performs an open loop evaluation to determine the uplink transmit power, switching from the connection state of the GSM network to the CELL_DCH state of the UMTS network.
- the BSC of the GSM network passes through the core network.
- Core Network cartridge CN
- RNC Radio Access Network Application Part relocation request
- the RNC receives the RANAP relocation Req message, allocates radio resources for this migration, and configures the base station through a Radio Link setup (RL setup) process, and the base station starts transmitting and receiving radio signals.
- the base station successfully establishes an RL return radio link setup response (RL setup response) message.
- the RNC will carry the radio resource and other parameter groups (mainly including U-RNTI, RAB information, transport layer information and physical layer information) allocated for the terminal in the RELOCATION REQ ACKNOWLEGE message (in the RNC Container).
- the cell is forwarded to the BSC through the Iur-g interface and forwarded by the CN to the terminal.
- the terminal obtains the relevant access parameters from the pre-configuration (default mode) given in the system message, performs downlink synchronization directly with the base station, and performs uplink wireless transmission after synchronization.
- the base station After detecting the uplink synchronization, the base station returns a radio link restore indicator (RL RESTORE IND) to the RNC.
- the RNC After receiving the "RL RESTORE IND message" on the base station, the RNC sends a relocation detect message to the core network to inform the terminal that it has accessed the UTMS network from the GSM network. The terminal sends a handover to UTRAN complete message to the RNC indicating that the terminal handover is complete.
- the message may also include an encrypted serial number for each CN domain and its activation time.
- Step 8 The terminal switches to the UMTS network to perform high-speed data transmission on the UMTS network.
- the UMTS network allocates a dedicated channel to the terminal to enter the CELL_DCH state.
- a terminal in the CELL-DCH state performs high-rate data transmission on a dedicated channel.
- Step 9 When the data traffic of the terminal is less than the traffic threshold, the terminal sends a second traffic notification message to the RNC, and notifies the RNC that the data traffic of the terminal is less than the traffic threshold.
- the terminal After the terminal is switched to the UMTS network, the terminal can periodically measure its own traffic. When the traffic is smaller than the second traffic threshold, the terminal sends a second traffic notification message to the RNC.
- Step 10a The RNC sends a state transition indication to the terminal, instructing the terminal to switch from the CELL_DCH state to the non-CELL-DCH state.
- Step 1 la The terminal switches from the CELL_DCH state to the non-CELL_DCH state.
- the UMTS network For terminals that move out of the CELL-DCH state, the UMTS network no longer maintains them.
- the terminal needs to maintain the state of the UMTS network and needs the service of the UMTS network, since the UMTS network is in the channel clipping mode, the terminal has a problem with the quality of the UMTS network, triggering cell reselection to enter the GSM network. For example: When the terminal periodically reads the paging message, because the PICH closes the terminal and cannot find the PICH channel, the terminal determines that the UMTS network quality is deteriorated, triggering cell reselection.
- the RNC may also instruct the terminal to switch from the UMTS network to the GSM network camp.
- Step 10b The RNC sends a network handover indication including the GSM network configuration information to the terminal, instructing the terminal to switch from the UMTS network to the GSM network.
- the RNC sends a handover command to the terminal to the GSM network, that is, a Cell Change command.
- a handover command to the terminal to the GSM network, that is, a Cell Change command.
- Step 1 lb The terminal switches from the UMTS network to the GSM network.
- the GSM network and the UMTS network are in the same coverage, in order to reduce the transmission of the UMTS network broadcast signaling, reduce the power consumption of the UMTS network device, and close all common physical channels except the pilot channel in the UMTS network, thereby the UMTS network.
- the access of the terminal that is not in the CELL_DCH state cannot be supported.
- the UMTS network can only maintain the terminal in the CELL_DCH state.
- the terminal accesses from the GSM network during initial access.
- the GSM network causes the terminal to cut into the CELL_DCH state in the UMTS network.
- the UMTS network After the terminal enters the CELL-DCH state of the UMTS network, the UMTS network allocates a dedicated channel for the terminal. It enables high-rate data transmission on a dedicated channel.
- the RNC of the UMTS network indicates that the terminal cuts into a non-CELL-DCH state, or indicates that the terminal cuts into the GSM network, so that the UMTS network does not need to maintain a terminal with less traffic, thereby saving radio resources of the UMTS network. . Since the UMTS network closes all common physical channels except the pilot channel, the overhead generated by the UMTS network continuously transmitting broadcast signaling is avoided, and the power consumption and transmission power of the network side communication device of the UMTS network are reduced.
- the embodiment of the present invention can implement seamless handover from the GSM network to the UMTS network for the CS service.
- the embodiment of the present invention enables the CS service to be carried on the GSM network.
- the PS service and the DTM service are carried on the 3G network.
- the following two embodiments illustrate how to perform network switching between a GSM network and a UTMS network for a terminal having a PS service and a terminal of a DTM service.
- FIG. 4 is a flowchart of still another communication method according to an embodiment of the present invention.
- the terminal for the DTM service that is, the terminal where the CS service is mixed with the PS service
- the BSC of the GSM network and the RNC of the UMTS network perform network switching on the terminal in the scenario that the UMTS network and the GSM network are in the same coverage.
- the network handover for the DTM service differs from the network handover method of the CS service in that: in the corresponding embodiment of FIG. 3, step 7: before the BSC sends the network handover indication including the UMTS network configuration information to the terminal, include:
- Step A The BSC sends a release PS service link indication to the terminal, instructing the terminal to release the PS service link.
- the pure PS service of the 2G network cannot be directly switched into the 3G network. Therefore, if the terminal wants to cut into the 3G service when performing the pure PS service, the terminal needs to disconnect the PS service from the 2G network first, and then reselect the 3G network.
- the CS service of the 2G network can be directly switched into the 3G network. Therefore, for the terminal of the DTM service, before the BSC sends the network handover indication including the UMTS network configuration information to the terminal, the terminal needs to instruct the terminal to release the PS service link.
- the GSM network to the UMTS network can be seamlessly switched through the subsequent steps of step 7.
- FIG. 5 is a flowchart of still another communication method according to an embodiment of the present invention.
- This embodiment illustrates how the terminal for the PS service, the BSC of the GSM network, and the RNC of the UMTS network perform network switching on the terminal in the scenario where the UMTS network and the GSM network are in the same coverage.
- the main difference between the network switching of the PS service and the network switching of the CS service is the steps 6 to 8 in the corresponding embodiment of FIG. 3, that is, how the BSC instructs the terminal to switch into the UMTS network.
- FIG. 5 differs from FIG. 3 in that, after step 5 and before step 9, the embodiment includes:
- Step 51 The BSC sends a channel open indication to the RNC through the Iur-g interface, triggering the UMTS network to open the closed public physical channel.
- the GSM network After the terminal sends the information of the 'UMTS network cell quality' to the GSM network, the GSM network sends the terminal identification information to the UMTS network, and the UMTS network is triggered to be turned off by the Iur-g interface. After the common physical channel, the UMTS network channel clipping mode enters the normal operating mode. When the terminal is cut into the UMTS network by the GSM network, the GSM network needs to identify the terminal information on the UMTS network.
- Step 52 The BSC sends a Temporary Block Flow (TBF) indication to the terminal of the PS service.
- TBF Temporary Block Flow
- the pure PS service of the 2G network cannot be directly switched into the 3G network.
- the terminal of the pure PS service cuts into the 3G network, the connection between the PS service and the 2G network needs to be disconnected, and then the 3G network is reselected. Therefore, the terminal for the DTM service needs to release the connection between the PS service and the 2G network, and only the connection between the CS service and the 2G network.
- Step 53 The terminal reselects to enter the UMTS network, and sends an RRC connection setup request to the RNC in the UMTS network.
- the terminal releases the TBF on the GSM network. Since the UMTS network is in normal operation mode and the signal quality of the UMTS network is the best, the terminal reselects to enter the UMTS network.
- Step 54 The RNC allocates a dedicated channel to the terminal and establishes an RRC connection according to the RRC connection setup request.
- Step 55 After the terminal performs cell configuration of the UMTS network, the terminal sends a configuration completion report to the RNC.
- Step 56 After receiving the configuration completion report of the terminal, the RNC turns off all common physical channels except the pilot channel.
- the terminal completes the configuration of the new cell, reports the configuration completion report to the UMTS network, triggers the UMTS network to close the opened physical channel, and enters the channel clipping mode.
- FIG. 6 is a schematic structural diagram of a network side communication device according to an embodiment of the present invention.
- the network side communication device of the first network provided by this embodiment includes: a first monitoring module 61 and a first switching indication module 62.
- the first monitoring module 61 is configured to monitor whether the terminal in the first network has a second network service requirement; the first network is covered by the second network; and the average data transmission rate of the second network is higher than the first network. The average data transmission rate, all common physical channels or partial common physical channels except the pilot channel in the second network are in a closed state.
- the first switching indication module 62 is configured to: when the first monitoring module 61 monitors the second network service requirement of the terminal, send, to the terminal, a network switching indication that includes the second network configuration information, where the first network switching indication is used Instructing the terminal to switch from the first network to the second network.
- the first monitoring module 61 can be configured to monitor whether the data traffic of the terminal meets a traffic threshold.
- the first handover indication module 62 may be configured to send, when the data traffic of the terminal reaches a traffic threshold, a network handover indication including the second network configuration information to the terminal.
- the first monitoring module 61 may be configured to monitor whether a data service request of the terminal carries a first network switching request, where the second network switching request is used to request to switch to a second network.
- the first handover indication module 62 may be configured to send a network handover indication including the second network configuration information to the terminal when the service request of the terminal carries the second network handover request.
- the first monitoring module 61 may be configured to monitor whether a first traffic notification message sent by the terminal is received, where the first traffic notification message is used to notify the terminal of the data service. Whether the quantity reaches the traffic threshold.
- the first handover indication module 62 may be configured to: when receiving the first traffic notification message sent by the terminal, send a network handover indication including the second network configuration information to the terminal.
- the method further includes:
- a service indication module 63 configured to send a release PS service link indication to the terminal, if the service of the terminal is a DTM service, before the network handover indication including the second network configuration information is sent to the terminal;
- the service of the terminal is a PS service, and sends a channel open indication to the network side device of the second network, where the channel open indication is used to indicate that the network side device of the second network plays Generating a common physical channel in which the second network is in a closed state; and transmitting an indication of releasing the temporary block flow to the terminal.
- the first handover indication module 62 includes: a first measurement indication unit 621, a measurement report receiving unit 622, and a first handover indication unit 623.
- a first measurement indication unit 621 configured to: when the first monitoring module 61 detects that the terminal has a second network service requirement, send a first measurement indication to the terminal, where the first measurement indication is used to indicate that the terminal is configured to measure The signal quality of the second network.
- the measurement report receiving unit 622 is configured to receive a first measurement report sent by the terminal, where the first measurement report is used to notify that the signal quality of the second network reaches a quality threshold.
- the first handover indication unit 623 is configured to: when receiving the first measurement report sent by the terminal, send a network handover indication including the second network configuration information to the terminal.
- the base station of the second network closes the pilot channel in the second network.
- the terminal can only access and initiate services on the first network.
- the first monitoring module 61 of the network side device of the first network detects that the terminal has the second network service requirement
- the first handover indication module 62 sends a first network switching indication that includes the second network configuration information to the terminal, and triggers the terminal to The first network switches to the second network.
- the second network allocates a dedicated channel for the terminal to perform high-rate data transmission on the dedicated channel.
- FIG. 7 is a schematic structural diagram of still another network side communication device according to an embodiment of the present invention. As shown in FIG. 7A, the embodiment includes: a second monitoring module 71 and a second switching indication module 72.
- the second monitoring module 71 is configured to monitor whether the terminal in the second network has a second network service requirement; the first network is covered by the second network; and the average data transmission rate of the second network is higher than the first The average data transmission rate of a network in which all common physical channels or partial common physical channels except the pilot channel are in a closed state.
- the second handover indication module 72 is configured to: when the terminal does not have the second network service requirement, send a network handover indication including the first network configuration information to the terminal, or send a state transition indication to the terminal; Instructing the terminal to switch from the second network to the first network, where the state transition indication is used to indicate that the terminal migrates from a state occupying the second network dedicated channel to not occupying the second network dedicated channel. status.
- the second monitoring module is configured to monitor whether the data traffic of the terminal is less than a traffic threshold.
- the second handover indication module may be configured to: when the data traffic of the terminal is less than a traffic threshold, send a network handover indication including the first network configuration information to the terminal or send a state transition indication to the terminal.
- the second monitoring module is configured to monitor whether the data service request of the terminal carries a first network switching request, where the second network switching request is used to request to switch to the first network.
- the terminal sends a second network handover indication including the first network configuration information to the terminal or sends a state transition indication to the terminal.
- the second monitoring module is configured to monitor whether a second traffic notification message sent by the terminal is received, where the second traffic notification message is used to notify that the data traffic of the terminal is smaller than Traffic threshold.
- the second handover indication module may be configured to: when receiving the second traffic notification message sent by the terminal, send a network handover indication including the first network configuration information to the terminal, or send a state transition indication to the terminal .
- the network side device shown in FIG. 7A reference may be made to the description of the network side device of the second network in the corresponding embodiment of FIG. 2.
- the method further includes: a channel open receiving module.
- the channel open receiving module 73 is configured to: before the network side device of the first network sends the network switching indication including the second network configuration information to the terminal, if the data service of the terminal is a pure packet switched domain service, receive the a channel open indication sent by the network side device of the network, the channel open indication is used to indicate that the second physical network is in a closed state; the network switching indication is used to indicate that the terminal is from the first The network switches to the second network.
- the second handover indication module 72 instructs the terminal to migrate from the state occupying the second network dedicated channel to not occupying.
- the embodiment of the invention further provides a base station.
- the base station is located in the second network, and when the first network is covered with the second network, the base station turns off all common physical channels except the pilot channel in the second network or part of the common physical channel is in a closed state; The average data transmission rate of the two networks is higher than that of the first network.
- FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
- the embodiment includes: a first service requesting module 81 and a first switching indication receiving module 82.
- the first service requesting module 81 is configured to send, by the terminal, the first service request to the network side device of the first network in the first network; the average data transmission rate of the second network is higher than the average data transmission rate of the first network, where All common physical channels or partial common physical channels except the pilot channel in the second network are in a closed state.
- the service request may include a network handover request, where the network handover request is used to request to switch to the second network.
- the terminal may further include a first traffic notification module. a first traffic notification module, configured to send a first traffic notification message to the network side device of the first network when the data traffic of the terminal reaches the traffic threshold; the first traffic notification message is used to A network side device of a network notifies the data traffic of the terminal to reach a traffic threshold.
- the network side device of the first network determines that the terminal has a second network service requirement.
- a first handover indication receiving module 82 configured to receive, by the network side device of the first network, a network handover indication that includes the second network configuration information, where the terminal has a second network service requirement, where the network switching indication is used Instructing the terminal to switch from the first network to the second network.
- the method further includes: a service indication receiving module 83, configured to receive, before the network switching indication sent by the network side device of the first network, if the data service of the terminal is dual a mode transmission service, receiving a release circuit switching service link indication sent by the network side device of the first network; or, if the data service of the terminal is a pure circuit switching service, receiving the network side device sent by the first network Release the temporary block flow indication.
- a service indication receiving module 83 configured to receive, before the network switching indication sent by the network side device of the first network, if the data service of the terminal is dual a mode transmission service, receiving a release circuit switching service link indication sent by the network side device of the first network; or, if the data service of the terminal is a pure circuit switching service, receiving the network side device sent by the first network Release the temporary block flow indication.
- FIG. 8C is a schematic structural diagram of the first handover indication receiving module in FIG. 8A or FIG. 8B.
- the first handover indication receiving module 82 includes: a first measurement indication receiving unit 821, a first measurement reporting unit 822, and a first handover indication receiving unit 823.
- the first measurement indication receiving unit 821 is configured to: when the terminal has a second network service requirement, receive a first measurement indication sent by the network side device of the first network, where the first measurement indication is used to indicate the terminal Measuring the signal quality of the second network.
- a first measurement report unit 822 configured to send a first measurement report to a network side device of the first network when the signal quality of the second network reaches a quality threshold; the first measurement report is used to notify the The signal quality of the second network reaches the quality threshold.
- the first handover indication receiving unit 823 is configured to receive, by the network side device of the first network, a network handover indication that includes the second network configuration information.
- the terminal accesses from the first network, and sends a service request to the network side device of the first network by using the first service requesting module 81 in the first network.
- the first handover indication receiving module 82 receives the network handover indication that is sent by the network side device of the first network, and includes the second network configuration information, The terminal switches from the first network to the second network according to the indication, thereby performing high-speed data transmission on the second network.
- FIG. 8 is a schematic structural diagram of still another terminal according to an embodiment of the present invention.
- the terminal provided in this embodiment includes: a second service requesting module 84 and a second switching indication receiving module 85.
- a second service requesting module 84 configured to send, by the second network, a service request to the network side device of the second network, where the average data transmission rate of the second network is higher than an average data transmission rate of the first network, where All common physical channels or partial common physical channels except the pilot channel in the two networks are in a closed state.
- the service request may include a network handover request, where the network handover request is used to request to switch to the first network.
- the network side device of the second network determines that the terminal does not have the second network service requirement.
- a second traffic notification module may also be included. a second traffic notification module, configured to: when the data traffic of the terminal is less than the traffic threshold, send a second traffic notification message to the radio network controller; the second traffic notification message is used to the second network The network side device notifies the terminal that the data traffic is small. At the threshold of business volume.
- the network side device of the second network determines that the terminal does not have the second network service requirement.
- the service request may include a network handover request, where the network handover request is used to request to switch to the first network.
- the terminal may further include a second traffic notification module. a second traffic notification module, configured to send a second traffic notification message to the network side device of the first network when the data traffic of the terminal is less than the traffic threshold; the first traffic notification message is used to The network side device of the second network notifies the terminal that the data traffic is smaller than the traffic threshold.
- the network side device of the first network determines that the terminal does not have the second network service requirement.
- the second handover indication receiving module 85 is configured to: when the terminal does not have the second network service requirement, receive a network handover indication that includes the first network configuration information sent by the network side device of the second network, or send a state transition indication to the terminal;
- the network switching indication is used to indicate that the terminal switches from the second network to the first network, where the state transition indication is used to indicate that the terminal migrates from a state occupying the second network dedicated channel to not occupying the second network dedicated channel. status.
- the second service request module 84 sends a service request to the network side device of the second network in the second network.
- the second handover indication receiving module 85 receives the network switching indication that is sent by the network side device of the second network and includes the first network configuration information, The terminal switches from the second network to the first network according to the indication, so that the second network does not need to maintain the terminal without the second network service requirement.
- the "module” and the “unit” may be a logical entity or a physical entity, and may be implemented by a physical device, such as a processor, a chip, or the like.
- FIG. 9 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
- the system includes: a network side device 91 of a first network, a network side device 92 of a second network, and a terminal 93.
- the network side device 91 of the first network is configured to send a network handover indication to the terminal when the terminal has a second network service requirement in the first network, and instruct the terminal to switch from the first network to the first network;
- the first network is covered with the second network; the average data transmission rate of the second network is higher than the average data transmission rate of the first network, and all but the pilot channel in the second network
- the common physical channel or part of the common physical channel is in a closed state.
- the network side device 91 of the first network For the functions implemented by the network side device 91 of the first network, refer to the network side device of the first network provided in FIG. 6A to FIG. 6C.
- the network side device 92 of the second network is configured to: when the terminal in the second network does not have the second network service requirement, send a network handover indication including the first network configuration information to the terminal, or send the network handover indication to the terminal a state transition indication; instructing the terminal to switch from the second network to the first network, where the state transition indication is used to indicate that the terminal migrates from a state occupying the second network dedicated channel to not occupying the second network dedicated The state of the channel.
- the terminal 93 is configured to access from the first network, and initiate a service request on the first network. After receiving the network handover indication sent by the network side device of the first network, the terminal is configured to switch from the first network to the first network. After receiving the network switching indication sent by the network side device of the second network, the network is switched from the second network to the first network.
- the function implemented by the terminal 93 can be referred to the description of the corresponding embodiment of FIG. 8A to FIG. 8D.
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Abstract
本发明实施例提供一种通信方法、设备及系统。其中一种方法包括:监测第一网络中的终端是否有第二网络业务需求;所述第一网络同覆盖有所述第二网络;第二网络的平均数据传输速率高于第一网络的平均数据传输速率,第二网络内除导频信道之外的所有公共物理信道或部分公共物理信道处于关闭状态;终端有第二网络业务需求时,向终端发送包括第二网络配置信息的网络切换指示,网络切换指示用于指示终端从第一网络切换到第二网络。本发明实施例降低了异制式网络同覆盖下网络侧通信设备的功耗,减少了不必要的功率浪费。
Description
通信方法、 i殳备及系统 本申请要求于 2011 年 07 月 01 日提交中国专利局、 申请号为 201110184346.8、 发明名称为"通信方法、 设备及系统"的中国专利申请的优 先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明实施例涉及通信技术, 尤其涉及一种通信方法、 设备及系统。 背景技术
当前, 异制式网络可能进行重叠覆盖。 异制式网络的重叠覆盖会使网 络结构越来越复杂, 多张网络维护成本压力变大, 降低无线网络整体功耗 的压力也越来越大。 因此, 运营商期望融合的一张无线接入网络(Single Radio Access Network , 简称 Single RAN ) , 使适合各类用户需求的语音、 窄带数据、移动宽带等无线承载方式都融合在一个网元之中。在 Single RAN 时代, 全球移动通讯系统 ( Global System for Mobile Communications, 简称 GSM ) 网 络上叠加建设通用 移动通信系统 ( Universal Mobile Telecommunications System, 简称 UMTS )网络、高速分组接入( High Speed Packet Access, 简称 HSPA ) , 甚至是长期演进( Long Term Evolution, 简 称 LTE )网络甚至其他制式的射频模块都可以放在同一个基站内, 统一的基 站平台保证它们可以任意组合并共用同一个基带单元。 当市场需求发生变 动, 运营商可以按需更换射频模块种类, 不需要更换基带。
然而, 在 Single RAN中, 网络侧通信设备广播系统消息占用大量无线 资源, 并且为了保证覆盖, 网络侧通信设备会一直以最大功率发射。 因此, 在 Single RAN中 , 网络侧通信设备的功耗会越来越大。
发明内容
本发明提供一种通信方法、 设备及系统, 降低了网络侧通信设备的功 耗, 减少了不必要的能源浪费。
本发明一方面提供一种通信方法, 包括:
监测第一网络中的终端是否有第二网络业务需求; 所述第一网络同覆 盖有所述第二网络; 所述第二网络的平均数据传输速率高于所述第一网络 的平均数据传输速率, 所述第二网络内除导频信道之外的所有公共物理信 道或部分公共物理信道处于关闭状态; 所述终端有第二网络业务需求时, 向所述终端发送包括所述第二网络配置信息的网络切换指示, 所述网络切 换指示用于指示所述终端从所述第一网络切换到所述第二网络。
本发明另一方面还提供一种通信方法, 包括:
监测第二网络中的终端是否有第二网络业务需求; 第一网络同覆盖有 所述第二网络; 所述第二网络的平均数据传输速率高于所述第一网络的平 均数据传输速率, 所述第二网络内除导频信道之外的所有公共物理信道或 部分公共物理信道处于关闭状态; 所述终端没有第二网络业务需求时, 向 所述终端发送包括所述第一网络配置信息的网络切换指示或向所述终端发 送状态迁移指示; 所述网络切换指示用于指示所述终端从第二网络切换到 第一网络, 所述状态迁移指示用于指示所述终端从占用所述第二网络专用 信道的状态迁移到不占用所述第二网络专用信道的状态。
本发明再一方面还提供一种网络侧通信设备, 包括:
第一监测模块, 用于监测第一网络中的终端是否有第二网络业务需求; 所述第一网络同覆盖有所述第二网络; 所述第二网络的平均数据传输速率 高于所述第一网络的平均数据传输速率 , 所述第二网络内除导频信道之外 的所有公共物理信道或部分公共物理信道处于关闭状态; 第一切换指示模 块, 用于所述终端有第二网络业务需求时, 向所述终端发送包括所述第二
网络配置信息的网络切换指示, 所述网络切换指示用于指示所述终端从所 述第一网络切换到所述第二网络。
本发明又一方面提供一种网络侧通信设备, 包括:
第二监测模块, 用于监测第二网络中的终端是否有第二网络业务需求; 第一网络同覆盖有所述第二网络; 所述第二网络的平均数据传输速率高于 所述第一网络的平均数据传输速率, 所述第二网络内除导频信道之外的所 有公共物理信道或部分公共物理信道处于关闭状态; 第二切换指示模块, 用于所述终端没有第二网络业务需求时, 向所述终端发送包括所述第一网 络配置信息的网络切换指示或向所述终端发送状态迁移指示; 所述网络切 换指示用于指示所述终端从第二网络切换到第一网络, 所述状态迁移指示 用于指示所述终端从占用所述第二网络专用信道的状态迁移到不占用所述 第二网络专用信道的状态。
本发明又一方面还提供一种终端, 包括:
第一业务请求模块 , 用于终端在第一网络向第一网络的网络侧设备发 送业务请求; 第二网络的平均数据传输速率高于所述第一网络的平均数据 传输速率, 所述第二网络内除导频信道之外的所有公共物理信道或部分公 共物理信道处于关闭状态; 第一切换指示接收模块, 用于所述终端有第二 网络业务需求时, 接收所述第一网络的网络侧设备发送的包括所述第二网 络配置信息的网络切换指示, 所述网络切换指示用于指示所述终端从所述 第一网络切换到所述第二网络。
本发明又一方面还提供一种终端, 包括:
第二业务请求模块, 用于所述终端在第二网络向第二网络的网络侧设 备发送业务请求; 所述第二网络的平均数据传输速率高于第一网络的平均 数据传输速率, 所述第二网络内除导频信道之外的所有公共物理信道或部 分公共物理信道处于关闭状态; 第二切换指示接收模块, 用于所述终端没 有第二网络业务需求时, 接收第二网络的网络侧设备发送的包括第一网络
配置信息的网络切换指示或向所述终端发送状态迁移指示; 所述网络切换 指示用于指示所述终端从第二网络切换到第一网络, 所述状态迁移指示用 于指示所述终端从占用第二网络专用信道的状态迁移到不占用第二网络专 用信道的状态。
本发明又一方面还提供一种通信系统, 包括:
第一网络的网络侧设备, 用于监测到第一网络中终端有第二网络业务 需求时, 向所述终端发送网络切换指示, 指示所述终端从第一网络切换到 第一网络; 所述第一网络同覆盖有所述第二网络; 所述第二网络的平均数 据传输速率高于所述第一网络的平均数据传输速率, 所述第二网络内除导 频信道之外的所有公共物理信道或部分公共物理信道处于关闭状态; 第二 网络的网络侧设备, 用于监测到第二网络中的终端没有第二网络业务需求 时, 向所述终端发送包括所述第一网络配置信息的网络切换指示或向所述 终端发送状态迁移指示; 指示所述终端从第二网络切换到第一网络, 所述 状态迁移指示用于指示所述终端从占用所述第二网络专用信道的状态迁移 到不占用所述第二网络专用信道的状态; 所述终端, 用于从所述第一网络 接入, 并在所述第一网络发起业务请求; 接收所述第一网络的网络侧设备 发送的网络切换指示后, 从第一网络切换到第二网络; 接收到第二网络的 网絡侧设备发送的网络切换指示后, 从所述第二网缉切换到第一网络。
本发明实施例的通信方法、 设备及系统, 在在第一网络和第二网络同 覆盖时, 为減少第二网络广播信令的传输, 减少第二网络设备的功耗, 第 二网络的基站关闭第二网络中除导频信道之外的所有公共物理信道, 终端 只能在第一网络接入并发起业务。 当第一网络的网络侧设备监测终端有第 二网络业务需求时, 向终端发送包括第二网络配置信息的第一网络切换指 示, 触发终端从第一网络切换到第二网络。 终端进入第二网络后, 第二网 络为终端分配专用信道使其在专用信道上进行高速率的数据传输。 由于第 二网络关闭了除导频信道之外的公共物理信道, 避免了第二网络不断发射
广播信令所产生的开销, 降低了第二网络侧通信设备的功耗和发射功率, 从而可以降低邻区干扰, 而且可以获得上、 下行的容量增益。 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一简单地介绍, 显而易见地, 下面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例提供的一种通信方法流程图;
图 2为本发明实施例提供的另一种通信方法流程图;
图 3为本发明实施例提供的又一种通信方法流程图;
图 4为本发明实施例提供的再一种通信方法流程图;
图 5为本发明实施例提供的还一种通信方法流程图;
图 6A为本发明实施例提供的一种网络侧通信设备结构示意图; 图 6B为本发明实施例提供的另一种网络侧通信设备结构示意图; 图 6C为本发明实施例提供的又一种网络侧通信设备结构示意图; 图 7A为本发明实施例提供的再一种网絡侧通信设备结构示意图; 图 7B为本发明实施例提供的还一种网络侧通信设备结构示意图; 图 8A为本发明实施例提供的一种终端结构示意图;
图 8B为本发明实施例提供的另一种终端结构示意图;
图 8C为图 8A或图 8B中第一切换指示接收模块的结构示意图;
图 8D为本发明实施例提供的又一种终端结构示意图;
图 9为本发明实施例提供的一种通信系统结构示意图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本 发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描 述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人 在没有做出创造性劳动前提 下所获得的所有其他实施例, 都属于本发明保护的范围。
在不同的异制式网络中, 平均传输速率, 或系统容量等都可能不同。 例如, 第三代(3 generation, 3G ) 网络相对于第二代( 2 generation, 2G ) 网络具有高速率、 大容量等特点。 在本发明实施例中, 以不同制式的第一 网络和第二网络为例, 第二网络相对于第一网络具有高速率、 大容量等特 点, 同时第二网络的信道与第一网络相比较, 适合承载业务量具有突发性 质的业务。 如果将数据业务尽量承载在第二网络, 那么用户可以得到高速 率、 低时延的服务。 但是如果让大量语音业务承载于第二网络, 由于语音 业务的时延限制, 则第二网络吞吐率相对于全部承载数据业务会有明显下 降。 因此, 当第一网络和第二网络共同覆盖小区时, 从资源利用效率、 用 户服务盾量(QoS )和绿色节能的需求出发, 可以基于网络特性, 进行灵活 设置, 使得终端从第一网络初始接入, 当有数据业务需求达到门限值时, 转承载于第二网络。 在本发明实施例中, 例如, 第二网络为第 4代 (4 generation, 4G ) 网络时, 第一网络可为 3G网络或 2G网络; 或者, 第二网络 为 3G网络时, 第一网络可为 2G网络; 或者, 第二网络为 4G网络的更高级演 进网络时, 第一网络可以为 4G、 3G或 2G中的任意一种网络。 总之, 在本发 明实施例中, 第一网络和第二网络并不特别限定于 2G、 3G或 4G网络中的一 种, 当存在更高级的演进网络或其它异制式网络时, 本发明实施例提供的 方法仍可以适用, 第二网络的平均传输速率高于第一网络的平均传输速率 , 第二网络的系统容量也可以大于第一系统的系统容量。 第二网络的平均传 输速率高于第一网络的平均传输速率是指在正常情况下, 第二网络的传输 速率高于第一网络的传输速率, 或者, 第二网络的传输速率的平均值高于
第一网络的传输速率的平均值。 在特定情况下, 或者瞬间的情况下, 第一 网络的传输速率可能高于第二网络的传输速率, 但这是非常态的。 在常态 情况下, 第二网络的传输速率高于第一网络的传输速率, 或者, 第二网络 的平均传输速率是高于第一网络的平均传输速率。 在本发明实施例中, 4G 网絡例如可为 LTE或 LTE高级( LTE Advanced )网絡, 3G网络例如可为 UMTS 网络, 2G网络例如可为 GSM网络, 在本发明实施例中, 所列举的网络仅仅 是一种具体的实施方式, 本发明并不限制于此。 本发明实施例中, 当终端 需要支持不同网络制式时, 终端可以为多模终端。 本发明实施例中, 2G、 3G、 4G或更高级的网络制式的网络的划分, 对于本领域技术人员而言, 可 以参照通信业界的共识和经验进行确认。
在本发明实施例中, 同覆盖可以包括共站址共覆盖, 例如, 同覆盖的 两个或多个异制式网络可以融合于同一个 Single RAN中, 单一的网元中可 封装具有不同异制式网络的网络侧设备功能的模块, 具有网络侧设备功能 的模块可以为物理模块, 也可以为逻辑模块。 不同的异制式网络的网络侧 设备功能的模块之间可以通过接口进行连接, 实现信息的共享, 譬如, 各 网络的负载量, 系统广播消息等。 例如, 在单一网元中可以包括 GSM网络 的基站控制器 (Base Station Controller, 简称 BSC )模块以及 UMTS网络的 无线网络控制器 ( Radio Network Controller, 简称 RNC )模块, BSC模块和 RNC模块可以通过 Iur-g接口进行连接, 实现信息共享。 或者, 同覆盖的两 个或多个异制式网络可以为单純的共覆盖, 即覆盖范围一样, 但不同的异 制式网络的网络侧设备不是共站址。 Iur-g接口是 BSC和 RNC之间新增加的 一个接口, 用于 2G网络 /3G网络的互操作和信息共享。 BSC和 RNC通过 Iur-g 接口封装成多基站控制器( Multiple Base Station Controller, 简称 MBSC ) 。 2G网络 /3G网络的互操作: 例如 RNC不需要通过 CN知道目标小区的负载, RNC通过 Iur-g口直接从 BSC中获得。 在 MBSC内部传递消息: MBSC中 2G 网络小区和 3G网络小区分别广播自己的信息, 每个网络小区都可以通过
MBSC接收到来自其他小区的信息, 周期性的更新信息。 广播信息的内容可 以由运营商自己控制, 因此增加新的内容很方便, 扩展性比较好。 2G网络 与 3G网络是否切换由广播信息决定, 而不是由负载决定; 在切换之前就可 以知道其他小区的信息, 从而确定目标小区。
图 1为本发明实施例提供的一种通信方法流程图。 如图 1所示, 本实施 例提供的异制式网络中通信方法包括:
步骤 11: 第一网络的网络侧设备监测终端是否有第二网络的业务需求; 第一网络同覆盖有第二网络; 第二网络的平均数据传输速率高于第一网络 的平均数据传输速率, 第二网络内除导频信道之外的所有公共物理信道或 部分公共物理信道处于关闭状态。
本发明实施例, 第一网络同覆盖有第二网络时, 第二网络的网络侧设 备打开第二网络中导频信道, 关闭第二网络中除导频信道之外的所有公共 物理信道或部分公共物理信道, 以减少第二网络的网络侧设备上广播信令 的传输开销。 在本发明实施例中, 关闭部分信道或全部信道可称之为信道 裁剪, 当网络中的部分信道或全部信道处于关闭状态, 可称该网络处于信 道裁剪模式。 例如, 第二网络中除导频信道之外的所有公共物理信道或部 分公共物理信道关闭后, 本发明实施例中可认为第二网络处于信道裁剪模 式。 第二网络进入处于信道裁剪模式后, 不支持终端的初始接入、 空闲态 终端的驻留以及第一网络中终端以第二网络为目标网络的小区重选。 第二 网络无法支持终端的初始接入, 即使第二网络的信号质量好, 新开机的终 端也无法驻留。 因此, 第二网络处于信道裁剪模式后, 终端只能由第一网 络接入, 并在第一网络发起相关业务, 例如寻呼业务和数据业务。 第二网 络的导频信道处于打开状态, 为终端提供第二网络信号质量的测量服务。
步骤 12: 若终端有第二网络业务需求, 第一网络的网络侧设备向终端 发送包括第二网络配置信息的网络切换指示, 网络切换指示用于指示终端 从第一网络切换到第二网络。
终端开机后驻留在第一网络进入连接状态, 向第一网络的网络侧设备 发起业务, 第一网络的网络侧设备监测终端是否有第二网络业务需求, 以 触发终端切入第二网络。 第一网络的网络侧设备监测到终端有第二网络业 务需求时, 向终端发送包括第二网络配置信息的网络切换指示, 触发终端 切入第二网络。 第一网络的网络侧设备可有多种方法监测终端是否有第二 网络业务需求, 以下举例说明:
一种实施方式, 第一网络的网络侧设备监测终端的数据业务量是否达 到业务量门限。 在终端的数据业务量达到业务量门限时, 确定终端有第二 网络的业务需求。 其中, 业务量门限可以根据实际通信状况和通信需求来 确定, 也呆根据本领域技术人员的经验来确定。 另一种实施方式, 终端可 在业务请求中携带网络切换请求以请求切入第二网络。 第一网络的网络侧 设备接收到终端的业务请求, 监测到业务请求中携带有网络切换请求时, 确定终端有第二网络业务需求。 又一种实施方式, 终端可监测自身的数据 业务量, 在数据业务量达到业务量门限时向第一网络的网络侧设备发送业 务量通知消息, 第一网络的网络侧设备接收到终端的业务量通知消息后确 定终端有第二网络业务需求。
例如, 以第二网络为 3G网络, 第一网络为 2G网络为例, 2G网络中终端 的状态包括空闲 (idle ) 状态和连接状态。 其中, 终端在 2G网络中处于 idle 状态下迁移到 3G网络时处于非 CELL_DCH状态。 3G网络中终端的非 CELL_DCH状态包括 idle、 URA_PCH、 CELL_PCH和 CELL_FACH状态等。 终端在 2G网络中处于连接状态下迁移到 3G网络时, 处于 3G网络中的 CELL_DCH状态。 3G网络处于信道裁剪模式后, 无法维护处于非 CELL_DCH状态的终端。 而 CELL— DCH状态的终端分配有专用的物理信道 和传输信道, 终端在专用信道上进行数据传输, 不需要随机接入, 也不需 要读取系统消息, 因此, 3G网络处于信道裁剪模式后不会对 CELL— DCH状 态的终端的数据业务产生影响。 因而, 3G网络仅维护处于 CELL— DCH状态
的终端。 在本发明实施例中, CELL_DCH状态, 非 CELL_DCH状态, 以及 idle, URA_PCH, CELL— PCH和 CELL_FACH等状态可以参考 3GPP规范中 的描述。
终端开机后驻留在 2G网络, 进入连接状态后, 向 2G网络的 BSC发起电 路域交换(Circuit Switched, 简称 CS ) 业务和数据业务, 数据业务可包括 分组 (Packet Switched, 简称 PS ) 业务和双模式传输 ( Dual Transmission Mode, 筒称 DTM )业务。 BSC监测终端是否有 3G网络业务需求, 以触发终 端切入 3G网络。 BSC可有多种方法监测终端是否有 3G网络业务需求, 以下 举例说明:
一种实施方式, BSC监测终端的数据业务量是否达到业务量门限。在终 端的数据业务量达到业务量门限时, 确定终端有 3G网络业务需求。 其中, 业务量门限可以是 3G网络中终端从非 CELL_DCH状态迁移到 CELL_DCH 状态时数据业务量需达到的门限。 另一种实施方式, 终端可在业务请求中 携带网络切换请求以请求切入 3G网络。 BSC接收到终端的业务请求时, 监 测到业务请求中携带有网络切换请求时, 确定终端有 3G网络业务需求。 又 一种实施方式, 终端可监测自身的数据业务量, 在数据业务量达到业务量 门限时向 BSC发送业务量通知消息, BSC接收到终端的业务量通知消息后确 定终端有 3G网络业务需求。
BSC监测终端有 3G网络业务需求时, 向终端发送包括 3G网络配置信息 的网络切换指示,触发终端切入 3G网络。其中, 3G网络配置信息可以是 BSC 在监测到终端有 3G网络业务需求时通过与 3G网络的无线网络控制器( Radio Network Controller, 筒称 RNC ) 交互而获取, 也可以在监测到终端有 3G网 络业务需求之前, BSC与 RNC交互时获取的。 2G网络中的终端进入 3G网络 后, 由 2G网络中的连接状态转为 3G网络中的 CELL— DCH状态, 3G网络为 CELL_DCH状态的终端分配专用信道使其在专用信道上进行高速率的数据
传输。 由于 3G网络仅维护 CELL_DCH状态的终端, 避免了维护非 CELL_DCH状态的相关信令, 减少了不必要的功率浪费。
本发明实施例在第一网络和第二网络同覆盖时, 为减少第二网络广播 信令的传输, 减少第二网络设备的功耗, 第二网络的网络侧设备关闭第二 网络中除导频信道之外的所有公共物理信道, 终端只能在第一网络接入并 发起业务。 当第一网络的网络侧设备监测终端有第二网络业务需求时, 向 终端发送包括第二网络配置信息的第一网络切换指示, 触发终端从第一网 络切换到第二网络。 终端进入第二网络后, 第二网络为终端分配专用信道 使其在专用信道上进行高速率的数据传输。 由于第二网络关闭了除导频信 道之外的公共物理信道 , 避免了第二网络不断发射广播信令所产生的开销 , 降低了第二网络侧通信设备的功耗和发射功率, 从而可以降低邻区干扰, 而且可以获得上、 下行的容量增益。
图 2为本发明实施例提供的另一种通信方法流程图。 如图 2所示, 本实 施例提供的异制式网络的通信方法包括:
步骤 21: 第二网络的网络侧设备监测第二网络中的终端是否有第二网 络的业务需求; 第一网络同覆盖有第二网絡; 第二网络的平均数据传输速 率高于第一网络的平均数据传输速率, 第二网络内除导频信道之外的所有 公共物理信道或部分公共物理信道处于关闭状态。
步骤 22: 若终端没有第二网络业务需求, 向终端发送包括第一网络配 置信息的网络切换指示或向终端发送状态迁移指示; 网络切换指示用于指 示终端从第二网络切换到第一网络, 状态迁移指示用于指示终端从占用第 二网络专用信道的状态迁移到不占用第二网络专用信道的状态。
终端进入第二网络后, 第二网络为终端分配专用信道, 使终端在专用 信道上进行相对于第一网络的高速率的数据传输。 终端没有第二网络业务 需求时, 为节省第二网络的无线资源, 第二网络的网络侧设备向终端发送 第二网络切换指示, 指示终端从第二网络切换到第一网络驻留, 由第一网
络对终端进行维护。 另外, 第二网络的网络侧设备也可向终端发送状态迁 移指示, 指示终端从占用第二网络专用信道的状态迁移到不占用第二网络 专用信道的状态。
例如, 以第二网络为 3G网络, 第一网络为 2G网络为例, 终端进入 3G网 络后, 3G网络为终端分配专用信道使其进入 CELL_DCH状态。 处于 CELL_DCH状态的终端在专用信道上进行高速率的数据传输。 RNC同时监 测终端是否有 3G网络业务需求, 以在终端没有 3G网络业务需求触发终端切 入 2G网络。 RNC可有多种方法监测终端是否有 3G网络业务需求, 以下举例 说明:
一种实施方式, RNC监测终端的业务量是否小于业务量门限, 在终端 的业务量小于业务量门限时, 确定终端没有 3G网络业务需求。 其中, 业务 量门限可以是 3G网络中终端从 CELL_DCH状态迁移到非 CELL_DCH状态 时的业务量门限。 另一种实施方式, 终端可在数据业务请求中携带第网络 切换请求以请求切入 2G网络。 RNC接收到终端的数据业务请求, 监测到数 据业务请求中携带有网络切换请求时, 确定终端没有 2G网络业务需求。 又 一种实施方式, 终端可监测自身的业务量, 在业务量小于业务量门限时向 RNC发送业务量通知消息, RNC接收到终端的业务量通知消息后确定终端 没有 3G网络业务需求。
终端没有 3G网络业务需求时, 为节省 3G网络的无线资源, RNC向终端 发送网络切换指示, 指示终端从 3G网络切换到 2G网络驻留, 由 2G网络对终 端进行维护。 另外, 3G网络的 RNC也可向终端发送状态迁移指示, 指示所 述终端迁移到所述 2G网络的非连接状态, 或迁移到所述 3G网络的非 CELL_DCH状态。 处于非 CELL_DCH状态的终端驻留在 3G网络, 当需要 3G 网络的维护时, 由于 3G网络处于信道裁剪模式, 终端确定 3G网络质量较差 触发小区重选从而进入 2G网络驻留。
本发明实施例, 驻留在第二网络的终端没有第二网络的业务需求时, 第二网络指示终端从占用第二网络专用信道的状态迁移到不占用第二网络 专用信道的状态, 或指示终端切入第一网络, 从而第二网络无需维护业务 量较少的终端, 节省了第二网络的无线资源。 由于第二网络关闭了除导频 信道之外的所有公共物理信道, 避免了第二网络不断发射广播信令所产生 的开销, 降低了第二网络侧通信设备的功耗和发射功率, 从而可以降低邻 区干扰, 而且可以获得上、 下行的容量增益。
以下各实施例以 UMTS网络与 GSM网络同覆盖的情形为例, 说明本发 明异制式网络的通信方法。以下实施例中 UMTS的同步信道( Synchronization Channel,筒称 SCH )、公共控制物理信道( Common Control Physical Channel, 筒称 CCPCH ) 、 寻呼指示信道(Paging Indicator Channel, 简称 PICH ) 、 捕 获指示信道 ( Acquisition Indicator Channel, 筒称 AICH )和上行随机接入信 道( Packet Random Access Channel , 简称 PRACH ) 处于关闭状态, 公共导 频信道( Common Pilot Channel, 简称 CPICH )信道处于打开状态, GSM的 公共物理信道处于打开状态。 其中, CCPCH包括主公共控制物理信道 ( Primary Common Control Physical Channel, 简称 P-CCPCH )和辅公共控制 物理信道( Secondary Common Control Physical Channel, 简称 S-CCPCH ) ; CPICH包括: 主公共导频信道 ( Primary Common Pilot Channel, 筒称 P-CPICH ) 和辅公共导频信道 ( Primary Common Pilot Channel , 筒称 S-CPICH ) 。
首先说明 UMTS网络关闭上述 UMTS网络的公共物理信道即进入信道 剪裁模式后, 对终端的影响。
对关闭的 UMTS网络的各公共物理信道的主要作用进行如下说明: SCH 信道主要发送同步消息, 在终端初始接入时, 用于小区搜索和同步小区。 P-CCPCH承载上层广播信道(Broadcast Channel, 简称 BCH ) , 主要是系 统消息。 S-CCPCH主要承载 FACH和 PCH信道。 PICH是寻呼指示信道, 用
于传送寻呼指示(Paging Indicator, 筒称 PI )。 Idle、 URA_PCH、 CELL_PCH 的终端, 在指定寻呼时机醒来监听 PI。 AICH用于携带网络的捕获指示符号, 该指示符号告知终端通过 PRACH发送的前缀已经被系统检测到, 可以进一 步发送 PRACH消息。 PRACH信道是上行随机接入物理信道, 非 CELL— DCH 状态的终端发起随机接入过程时, 需通过 PRACH信道发前导 ( preamble ) 给 UMTS 陆地无线接入网 (UMTS Terrestrial Radio Access Network , UTRAN ) , 然后去 AICH信道侦听网络的反馈信息。 而打开的信道 P-CPICH 是导频信道, 用于发送小区的主扰码, 是其它各物理信道的功率基准和相 位参考, FDD模式下, 重选或切换时基于该信道对目的小区通过 CPICH进 行信号强度和信号质量的测量。
UMTS网络中的终端根据状态不同, 分为处于 idle、 URA— PCH、 CELL_PCH、 CELL— FACH或 CELL_DCH状态的终端, 根据各状态终端对 UMTS网络资源的需求不同, 本发明实施例中将终端的状态分为两大类, CELL_DCH状态的终端和非 CELL_DCH状态终端, 非 CELL— DCH状态终端 是指 idle、 URA_PCH、 CELL_PCH和 CELL_FACH状态的终端, 即除了 CELL_DCH状态之外的其它各状态终端。
关闭上述 UMTS网络的公共物理信道后,对于非 CELL_DCH状态终端的 影响: SCH信道关闭, 对于新开机的终端, 无法和搜索到的 UMTS网络进行 同步, 因此无法在 UMTS网络驻留, 继续小区搜索, 检测到 GSM网络信号 质量良好, 因此终端从 GSM网络驻留进去。 PICH信道关闭, 非 CELL-DCH 的终端驻留在 UMTS网络中, 需要在各自的寻呼时刻周期性醒来侦听 PICH, 看是否有本组(终端所在的寻呼组)的寻呼; PICH信道关闭, 非 CELL— DCH 的终端在寻呼时刻去侦听 PICH时, 会找不到 PICH, 因此会认为 UMTS网络 出现了问题, 将会触发小区重选; CCPCH信道关闭, P-CCPCH是对系统信 息的承载, 非 CELL— DCH的终端需要读取系统信息, 主要的读取方式有两 种: 一是当系统消息改变的时候, 二是当终端存储的系统消息过期之后,
会自动重读系统消息; 关闭掉 CCPCH之后, 终端无法获得系统消息, 会认 为小区是故障小区 (barred cell ) , 将触发小区重选。 因此, 当 UMTS网络 关闭 SCH/CCPCH/PICH/AICH/PRACH进入信道剪裁模式, 对于终端初始接 入、 小区驻留、 测量、 切换和业务的发起等行为会存在影响。
对于 CELL— DCH的终端, 终端分配有专用物理信道和专用传输信道, 专用逻辑信道。 专用逻辑信道可用专用控制信道 ( Dedicated Control Channel, 简称 DCCH ) 和专用业务信道(Dedicated Traffic Channel, 简称 DTCH ) , 终端在专用传输信道上进行数据传输, 不需要随机接入, 也不需 要侦听 AICH听取 AI。 终端不需要读取系统消息, 驻留小区的配置信息发生 变化时由 RNC通过在专用信道依次下发各种配置或承载信令, 最后配置给 终端,若 UTRAN需要寻呼 CELL— DCH的终端,在 DCCH、专用信道( Dedicated Channel , 筒称 DCH ) 和专用物理数据信道 ( Dedicated Physical Control Channel, 简称 DPDCH )上向终端发送 Paging Type2信息( Paging Type2信息 用于寻呼 CELL— DCH的终端) , 而不需要侦听 PICH和 CCPCH。 因此 UMTS 网络进入信道剪裁模式后, 对于 CELL_DCH状态终端的业务收发并不会产 生任何影响。 若 CELL_DCH的终端在服务小区失去同步, 就会变为 CELL_FACH状态。由上述分析可知 UMTS网络进入信道剪裁模式后, UMTS 网絡无法维护非 CELL_DCH状态的终端, 因此终端会重选到 GSM网络。
无论 UMTS网络是否处于信道剪裁模式, CPICH信道都正常打开, 当有 需要对小区信号质量进行测量时, 只需要有 P-CPICH信道即可完成。 对于 CELL_DCH的终端的移动性方面, 首先考虑 UMTS网络的小区之间的软 /硬 切换。 进行切换之前终端需要对切换的目标小区进行信号质量测量。 UTRAN在 DCCH上下发测量控制( Measurement Control )消息给 CELL— DCH 的终端。 无论目标小区是否处于信道剪裁模式, CPICH信道都正常打开。 CELL_DCH状态的终端要完成软 /硬切换, 只需要有 P-CPICH信道支撑完成 对目标小区的相关测量即可, 目标小区的网络配置信息由源 RNC发送相关
配置给需要切换的 CELL_DCH的终端,终端拿到目标小区的配置信息之后, 就可以直接切换过去, 整个过程不需要目标小区其它物理信道的支撑。 因 此, 无论是切换的源小区还是目标小区, 只要保留了 CPICH信道, 能对 CELL_DCH的终端提供测量支持, 就不会影响终端的切换行为。
图 3为本发明实施例提供的又一种通信方法流程图。 本实施例说明在 UMTS网络与 GSM网絡同覆盖的场景下, 针对 CS业务, GSM网络的 BSC和 UMTS网络的 RNC如何对终端进行网络切换。
如图 3所示, 本实施例包括:
首先, 在 UMTS网络和 GSM网络同覆盖的区域中, GSM网络的小区和 UMTS网络的小区互相配置为邻区。 GSM系统消息的异系统邻区列表里配 置 UMTS网络的小区作为邻区, 包含如下信息: UMTS小区 ID, 小区带宽和 频点信息等。 UMTS网络的系统信息或测量控制信息里的同频 /异频 ( Intra/Inter-freq ) 的邻区列表里也会包含: 小区 ID, 主扰码, 频点等信等 息; Inter-RAT邻区列表里包含 GSM小区相关信息: 小区偏移( Cell individual offset ) , 带宽指示 (Band indicator ) , 广播控制信道(Broadcast Control Channel,简称 BCCH )绝对无线频道编号( Absolute Radio Frequency Channel Number - ARFCN )等。 UMTS网络关闭 SCH、 CCPCH、 PICH、 AICH、 PRACH 信道, 打开 CPICH信道, 处于低功耗模式。 GSM网络的公共物理信道处于 打开状态。
步骤 1: 终端在 UMTS网络开机, 进行小区搜索。
步骤 2: 终端在 GSM网络接入并驻留。
当 UMTS网络的终端醒来, 进行网络搜索的时候, 因为 UMTS网络的 SCH、 CCPCH、 PICH、 AICH、 PRACH信道都处于关闭状态, 终端即使检 测到 UMTS网络信号质量好, 也无法驻留进去, 因此终端只能在同覆盖的正 常运行的 GSM网络驻留, 并在 GSM网络发起业务。
步骤 3: 在终端的数据业务量达到业务量门限时, 向 GSM网络的 BSC发 送第一业务量通知消息。
步骤 4: GSM网络 BSC向终端发送第一测量指示, 指示终端测量 UMTS 网络的信号质量。
步骤 5: 终端向 BSC发送第一测量 4艮告, 向 BSC通知 UMTS网络的信号 质量达到质量门限值。
由于 UMTS网络的 P-CPICH信道正常发送, 所以不会影响终端对 UMTS 网络的信号质量测量。
除步骤 5和步骤 6采用的方案外, 另外, BSC也可向终端周期性发送测量 指示,在终端测到 UMTS网络的信号质量达到质量门限值时向 BSC发送测量 报告, 由 BSC判决是否对终端驻留的网络进行切换。
步骤 6: BSC与 UMTS网络的 RNC交互, 获取 UMTS网络配置信息。 步骤 7: BSC向终端发送包括 UMTS网络配置信息的网络切换指示, 指 示终端从 GSM网络切换到 UMTS网络驻留。
当终端向 GSM网络上报 "UMTS网络的小区质量达到盾量门限值"后, GSM网络的 BSC与 UMTS网络的 RNC交互获取 UMTS网络配置信息,向终端 发送包括 UMTS网络配置信息的网络切换指示。
UMTS网络与 GSM同覆盖包括两种覆盖方式:一种是 UMTS网络与 GSM 共站址共覆盖、 另一种是 UMTS网络与 GSM純共覆盖。 UMTS网络与 GSM 共站址共覆盖时, UMTS网络与 GSM覆盖范围一样, 在同一个站点内 GSM 网络的 BSC和 UMTS网络 RNC被分装在一个硬件装置里,并且通过一个 Iur-g 进行连接, 实现部分信息的共享, 比如各网络的负载量、 系统广播消息。 UMTS网络与 GSM纯共覆盖时, UMTS网络与 GSM覆盖范围一样,但不考虑 基站是否共站址, 也不存在上述 Iur-g接口。
对于 UMTS网络与 GSM共站址共覆盖的情况, 当终端上报 GSM网络 "UMTS网络小区质量达到质量门限值"后, GSM网络的 BSC通过 Iur-g接口跟
UMTS网络的 RNC进行切换交互, UMTS网络 RNC将 UMTS网络小区的配置 信息: U-RNTI、 无线承载 (Radio Bearer, 筒称 RB )信息、 无线接入承载
( Radio Access Bearer, 简称 RAB )信息、 传输层信息和物理层信息打包, 通过 Iur-g接口转发到 GSM网络的 BSC , GSM网络的 BSC再通过切换命令
( handover command ) 下发给终端。 终端根据 HO Command内传递过来的 UMTS网络小区配置, 初始化信令链路、 RB和传输信道以及物理信道。 根 据接收到的信息元素 "允许的最大上行传输功率( Maximum allowed UL TX power ) ", 终端执行开放环路评估以确定上行链路发射功率, 由 GSM网络 的连接状态切换到 UMTS网络的 CELL_DCH状态。
对于 UMTS网络与 GSM纯共覆盖的情况, GSM网络的 BSC通过核心网
( Core Network, 筒称 CN )与 UMTS网络的 RNC交互获取 UMTS网络配置信 息。 可以如下: 在 GSM网络的 BSC判决终端应向 UMTS网络小区切换时, 向 CN发起切换请求。 之后, MSC向 RNC发送无线接入网络应用部分重定位请 求 ( Radio Access Network Application Part relocation request , RANAP relocation Req ) 消息。
RNC接收到 RANAP relocation Req消息, 为此次迁移分配无线资源, 并 且通过无线链路建立(Radio Link setup, RL setup )过程配置基站, 基站开 始发射和接收无线信号。基站成功建立 RL返回无线链路建立响应( RL setup response ) 消息。
RNC将为终端分配的无线资源和其他参数组(主要包括 U-RNTI、 RAB 信息、 传输层信息和物理层信息)携带在重定位请求确认(RELOCATION REQ ACKNOWLEGE ) 消息(在 RNC容器( RNC Container )信元中 ) 中通 过 Iur-g接口并经 CN转发给 BSC, 由 BSC下发给终端。 终端按 RNC配置的缺 省参数标识, 从系统消息中给出的预配置 (缺省方式) 中取到相关接入参 数, 直接跟基站进行下行同步, 并在同步后进行上行无线发送。
基站检测到上行同步后向 RNC上 4艮无线链路重新存储指示 ( radio link restore indicator, RL RESTORE IND )。 收到基站上艮的 "RL RESTORE IND 消息" 后, RNC向核心网发送重定位检测( relocation detect )消息, 告知终 端已经从 GSM网络接入到 UTMS网络。 终端发送切换至 UTRAN完成 ( handover to UTRAN complete ) 消息给 RNC表明终端切换完成。 消息中还 可包含针对各 CN域的加密序列号及其激活时间。
步骤 8: 终端切换到 UMTS网络驻留, 在 UMTS网络进行高速率的数据 传输。
终端进入 UMTS网络后, UMTS网络为终端分配专用信道使其进入 CELL_DCH状态。 处于 CELL— DCH状态的终端在专用信道上进行高速率的 数据传输。
步骤 9: 终端的数据业务量小于业务量门限时, 终端向 RNC发送第二业 务量通知消息, 向 RNC通知终端的数据业务量小于业务量门限。
终端切换到 UMTS网络驻留后, 可周期性测量自身的业务量, 在业务量 小于第二业务量门限值时, 终端向 RNC发送第二业务量通知消息。
步骤 10a: RNC向终端发送状态迁移指示, 指示终端从 CELL— DCH状态 切换到非 CELL— DCH状态。
步骤 1 la: 终端从 CELL— DCH状态切换到非 CELL_DCH状态。
对于迁出 CELL— DCH状态的终端, UMTS网络不再对其维护。 当终端在 UMTS网络要维持其状态而需要 UMTS网络的服务时 , 由于 UMTS网络处于 信道裁剪模式, 终端视 UMTS网络质量出现问题, 触发小区重选进入 GSM 网络。例如: 当终端周期性读取寻呼消息时,由于 PICH关闭终端找不到 PICH 信道, 终端确定 UMTS网络质量变差, 触发小区重选。
另外, 在步骤 9之后 , RNC也可指示终端从 UMTS网络切换到 GSM网络 驻留。 可以如下:
步骤 10b: RNC向终端发送包括 GSM网络配置信息的网络切换指示, 指 示终端从 UMTS网络切换到 GSM网络驻留。
例如, RNC向终端发送切换到 GSM网络的切换命令,也即小区改变( Cell Change )命令。 通过步骤 10b提供的方法, 可减少终端在 UMTS网络中进行 状态迁移的信令、 终端重选到 GSM网络的信令和终端驻留到 GSM网络的信 令。
步骤 1 lb: 终端从 UMTS网络切换到 GSM网络驻留。
处于 CELL— DCH状态的终端从 UMTS网络切换到 GSM网络驻留后, 如 果业务量达到业务量门限值, 通过步骤 3至步骤 7重新切换到 UMTS网络。
本实施例在 GSM网络和 UMTS网络同覆盖时,为减少 UMTS网络广播信 令的传输, 减少 UMTS网络设备的功耗, 关闭 UMTS网络中除导频信道之外 的所有公共物理信道,从而 UMTS网络无法支持非 CELL_DCH状态的终端的 接入, UMTS网络仅可维护 CELL_DCH状态的终端。 终端在初始接入时从 GSM网络接入。 当 GSM网络中处于连接状态的终端的数据业务的业务量达 到业务量门限值时, GSM网络使该终端切入 UMTS网络中的 CELL— DCH状 态。 该终端进入 UMTS网络的 CELL— DCH状态后, UMTS网络为该终端分配 专用信道。 使其在专用信道上进行高速率的数据传输。 当该终端的业务量 减少时, UMTS网络的 RNC指示该终端切入非 CELL— DCH状态, 或指示该 终端切入 GSM网絡, 从而 UMTS网絡无需维护业务量较少的终端, 节省了 UMTS网络的无线资源。 由于 UMTS网络关闭了除导频信道之外的所有公共 物理信道, 避免了 UMTS网络不断发射广播信令所产生的开销, 降低了 UMTS网络的网络侧通信设备的功耗和发射功率。
本发明实施例针对 CS业务可实现 GSM网络到 UMTS网络的无缝切换, 通常情况下, 本发明实施例使 CS业务在 GSM网络承载。使 PS业务和 DTM业 务在 3G网络承载。 以下通过两个实施例说明, 对于具有 PS业务的终端和 DTM业务的终端, 如何进行 GSM网络与 UTMS网络之间的网络切换。
图 4为本发明实施例提供的再一种通信方法流程图。 本实施例说明在 UMTS网络与 GSM网络同覆盖的场景下, 针对 DTM业务的终端, 也就是 CS 业务与 PS业务混合的终端, GSM网络的 BSC和 UMTS网络的 RNC如何对终 端进行网络切换。 如图 4所示, 针对 DTM业务的网络切换, 与 CS业务的网 络切换方法的区别在于: 在图 3对应实施例中步骤 7: BSC向终端发送包括 UMTS网络配置信息的网络切换指示之前, 还包括:
步骤 A: BSC向终端发送释放 PS业务链接指示,指示终端释放 PS业务链 接。
目前 2G网络的纯 PS业务不能直接切换进 3G网络, 因此, 终端在进行纯 PS业务时如果要切入 3G业务, 终端需先断开 PS业务与 2G网络的连接, 然后 重选进入 3G网络。 而 2G网络的 CS业务可以直接切换进 3G网络。 因此, 针对 DTM业务的终端, BSC向终端发送包括 UMTS网络配置信息的网络切换指示 之前, 需指示终端释放 PS业务链接。
终端在 GSM网络释放 PS业务链接后, 通过步骤 7的后续步骤可实现 GSM网络到 UMTS网络的无缝切换。
图 5为本发明实施例提供的还一种通信方法流程图。 本实施例说明在 UMTS网络与 GSM网络同覆盖的场景下, 针对 PS业务的终端, GSM网络的 BSC和 UMTS网络的 RNC如何对终端进行网络切换。 如图 5所示, PS业务的 网络切换与 CS业务的网络切换的主要区别在于图 3对应实施例中步骤 6至步 骤 8 , 即 BSC如何指示终端切换入 UMTS网絡。
如图 5所示, 图 5与图 3的区别在于, 在步骤 5之后、 步骤 9之前本实施例 包括:
步骤 51 : BSC通过 Iur-g接口向 RNC发送信道打开指示, 触发 UMTS网络 打开被关闭的公共物理信道。
终端向 GSM网络上 ^ 'UMTS网络小区质量最好 "信息后, GSM网络向 UMTS网络发送终端的标识信息, 通过 Iur-g接口触发 UMTS网络打开关闭的
公共物理信道后, UMTS网络信道裁剪模式进入正常运行模式。终端由 GSM 网络切入 UMTS网络时, GSM网络需向 UMTS网络上才艮终端的标识信息。
步骤 52: BSC向 PS业务的终端发送释放临时块流 (Temporary Block Flow, 简称 TBF )指示。
目前 2G网络的纯 PS业务不能直接切换进 3G网絡, 纯 PS业务的终端切入 3G网络时, 需先断开 PS业务与 2G网络的连接, 然后再重选进入 3G网絡。 因 此, 对于 DTM业务的终端需先释放 PS业务与 2G网络的连接, 只保留 CS业务 与 2G网络的连接。
步骤 53: 终端重选进入 UMTS网络, 向 UMTS网络中的 RNC发送 RRC连 接建立请求。
终端在 GSM网络释放 TBF, 由于 UMTS网络已处于正常运行模式且 UMTS网络的信号质量最好, 因此终端重选进入 UMTS网络。
步骤 54: RNC根据 RRC连接建立请求,为终端分配专用信道并建立 RRC 连接。
步骤 55:终端进行 UMTS网络的小区配置后,向 RNC发送配置完成报告。 步骤 56: RNC接收到终端的配置完成报告后, 关闭除导频信道之外的 所有公共物理信道。
终端完成新小区配置, 向 UMTS网络上报配置完成报告, 触发 UMTS网 络关闭打开的物理信道, 进入信道裁剪模式。
图 6A为本发明实施例提供的一种网络侧通信设备结构示意图。 如图 6A 所示, 本实施例提供的第一网络的网络侧通信设备包括: 第一监测模块 61 和第一切换指示模块 62。
第一监测模块 61 , 用于监测第一网络中的终端是否有第二网络业务需 求; 所述第一网络同覆盖有所述第二网络; 第二网络的平均数据传输速率 高于第一网络的平均数据传输速率, 所述第二网络内除导频信道之外的所 有公共物理信道或部分公共物理信道处于关闭状态。
第一切换指示模块 62 , 用于第一监测模块 61监测到终端第二网络业务 需求时, 向所述终端发送包括所述第二网络配置信息的网络切换指示, 所 述第一网络切换指示用于指示所述终端从所述第一网络切换到所述第二网 络。
一种实施方式: 所述第一监测模块 61, 可以用于监测所述终端的数据 业务量是否达到业务量门限。 所述第一切换指示模块 62, 可以用于所述终 端的数据业务量是否达到业务量门限时, 向所述终端发送包括第二网络配 置信息的网络切换指示。
另一种实施方式: 所述第一监测模块 61 , 可以用于监测所述终端的数 据业务请求中是否携带有第一网络切换请求; 所述第二网络切换请求用于 请求切换到第二网络。 所述第一切换指示模块 62, 可以用于所述终端的业 务请求中携带有第二网络切换请求时, 向所述终端发送包括所述第二网络 配置信息的网络切换指示。
又一种实施方式: 所述第一监测模块 61 , 可以用于监测是否接收到所 述终端发送的第一业务量通知消息; 所述第一业务量通知消息用于通知所 述终端的数据业务量是否达到业务量门限。 所述第一切换指示模块 62, 可 以用于接收到所述终端发送的第一业务量通知消息时, 向所述终端发送包 括第二网络配置信息的网络切换指示。
图 6A所示的网络侧设备实现的功能可参见图 1对应实施例中的第一网 络的网络侧设备的描述。
进一步, 如图 6B所示, 在图 6A的基础上, 还可以包括: 业务指示模块
63。
业务指示模块 63 , 用于向所述终端发送包括所述第二网络配置信息的 网络切换指示之前, 若所述终端的业务为 DTM业务, 向所述终端发送释放 PS业务链接指示; 若所述终端的业务为 PS业务, 向第二网络的网络侧设备 发送信道打开指示, 所述信道打开指示用于指示第二网络的网络侧设备打
开示第二网络处于关闭状态的公共物理信道; 并向所述终端发送释放临时 块流指示。
其中, 图 6B所示的网络侧设备可参见图 3、 图 4和图 5对应实施例中有关 BSC的描述。
另外, 如图 6C所示, 所述第一切换指示模块 62包括: 第一测量指示单 元 621、 测量报告接收单元 622和第一切换指示单元 623。
第一测量指示单元 621, 用于第一监测模块 61监测到所述终端有第二网 络业务需求时, 向所述终端发送第一测量指示, 所述第一测量指示用于指 示所述终端测量第二网络的信号质量。
测量报告接收单元 622, 用于接收所述终端发送的第一测量报告; 所述 第一测量报告用于通知第二网络的信号质量达到质量门限值。
第一切换指示单元 623, 用于接收所述终端发送的第一测量报告时, 向 所述终端发送包括第二网络配置信息的网络切换指示。
其中, 图 6C所示的网络侧设备实现的功能可参见图 3对应实施例中有关 BSC的描述。
本发明实施例在第一网络和第二网絡同覆盖时, 为减少第二网络广播 信令的传输, 减少第二网络设备的功耗, 第二网络的基站关闭第二网络中 除导频信道之外的所有公共物理信道, 终端只能在第一网络接入并发起业 务。 当第一网络的网络侧设备的第一监测模块 61监测到终端有第二网络业 务需求时, 第一切换指示模块 62向终端发送包括第二网络配置信息的第一 网络切换指示, 触发终端从第一网络切换到第二网络。 终端进入第二网络 后, 第二网络为终端分配专用信道使其在专用信道上进行高速率的数据传 输。 由于第二网络关闭了除导频信道之外的公共物理信道, 避免了第二网 络不断发射广播信令所产生的开销, 降低了第二网络侧通信设备的功耗和 发射功率, 从而可以降低邻区干扰, 而且可以获得上、 下行的容量增益。
图 7A为本发明实施例提供的再一种网络侧通信设备结构示意图。 如图 7A所示, 本实施例包括: 第二监测模块 71和第二切换指示模块 72。
第二监测模块 71 , 用于监测第二网络中的终端是否有第二网络业务需 求; 第一网络同覆盖有所述第二网络; 所述第二网络的平均数据传输速率 高于所述第一网络的平均数据传输速率, 所述第二网絡内除导频信道之外 的所有公共物理信道或部分公共物理信道处于关闭状态。
第二切换指示模块 72, 用于终端没有第二网絡业务需求时, 向所述终 端发送包括所述第一网络配置信息的网络切换指示或向所述终端发送状态 迁移指示; 所述网络切换指示用于指示所述终端从第二网络切换到第一网 络, 所述状态迁移指示用于指示所述终端从占用所述第二网络专用信道的 状态迁移到不占用所述第二网络专用信道的状态。
一种实施方式: 所述第二监测模块, 可以用于监测所述终端的数据业 务量是否小于业务量门限。
所述第二切换指示模块, 可以用于所述终端的数据业务量小于业务量 门限时, 向所述终端发送包括第一网络配置信息的网络切换指示或向所述 终端发送状态迁移指示。
一种实施方式: 所述第二监测模块, 可以用于监测所述终端的数据业 务请求中是否携带有第一网络切换请求; 所述第二网絡切换请求用于请求 切换到第一网络。 所述终端的业务请求中携带第一有网络切换请求时, 向 所述终端发送包括第一网络配置信息的第二网絡切换指示或向所述终端发 送状态迁移指示。
一种实施方式: 所述第二监测模块, 可以用于监测是否接收到所述终 端发送的第二业务量通知消息; 所述第二业务量通知消息用于通知所述终 端的数据业务量小于业务量门限。 所述第二切换指示模块, 可以用于接收 到所述终端发送的第二业务量通知消息时, 向所述终端发送包括第一网络 配置信息的网络切换指示或向所述终端发送状态迁移指示。
图 7A所示的网络侧设备实现的功能可参见图 2对应实施例中有关第二 网络的网络侧设备的描述。
进一步, 如图 7B所示, 在图 7A的基础上, 还包括: 信道打开接收模块
73。
信道打开接收模块 73 , 用于第一网络的网络侧设备向所述终端发送包 括第二网络配置信息的网络切换指示之前, 若所述终端的数据业务为纯分 组交换域业务, 接收所述第一网络的网络侧设备发送的信道打开指示, 所 述信道打开指示用于指示打开所述第二网络处于关闭状态的公共物理信 道; 所述网络切换指示用于指示所述终端从所述第一网络切换到所述第二 网络。
图 7B所示的网络侧设备实现的功能可参见图 5对应实施例中有关 RNC 的描述。
本发明实施例, 第二监测模块 71监测到驻留在第二网络的终端没有第 二网络的业务需求时, 第二切换指示模块 72指示终端从占用第二网络专用 信道的状态迁移到不占用第二网络专用信道的状态, 或指示终端切入第一 网络, 从而第二网络无需维护业务量较少的终端, 节省了第二网络的无线 资源。 由于第二网络关闭了除导频信道之外的所有公共物理信道, 避免了 第二网络不断发射广播信令所产生的开销, 降低了第二网络侧通信设备的 功耗和发射功率, 从而可以降低邻区干扰, 而且可以获得上、 下行的容量 增益。
本发明实施例还提供一种基站。 该基站位于第二网络, 在第一网络同 覆盖有第二网络时, 所述基站关闭所述第二网络内除导频信道之外的所有 公共物理信道或部分公共物理信道处于关闭状态; 第二网络的平均数据传 输速率高于第一网络。
图 8A为本发明实施例提供的一种终端结构示意图。 如图 8A所示, 本实 施例包括: 第一业务请求模块 81和第一切换指示接收模块 82。
第一业务请求模块 81 , 用于终端在第一网络向第一网络的网络侧设备 发送第一业务请求; 第二网络的平均数据传输速率高于所述第一网络的平 均数据传输速率, 所述第二网络内除导频信道之外的所有公共物理信道或 部分公共物理信道处于关闭状态。
其中, 业务请求中可包括网络切换请求, 所述网絡切换请求用于请求 切换到第二网络。 接收到包括有所述网絡切换请求的业务请求时, 确定终 端有第二网络业务需求。 另外, 终端还可包括第一业务量通知模块。 第一 业务量通知模块, 用于监测到终端的数据业务量达到业务量门限时, 向第 一网络的网络侧设备发送第一业务量通知消息; 所述第一业务量通知消息 用于向第一网络的网络侧设备通知所述终端的数据业务量达到业务量门 限。 第一网络的网络侧设备接收到第一业务量通知消息时, 确定终端有第 二网络业务需求。
第一切换指示接收模块 82, 用于终端有第二网络业务需求时, 接收所 述第一网络的网络侧设备发送的包括所述第二网络配置信息的网络切换指 示, 所述网络切换指示用于指示所述终端从所述第一网络切换到所述第二 网络。
如图 8B所示, 在图 8A的基础上, 还包括: 业务指示接收模块 83 , 用于 接收所述第一网络的网络侧设备发送的网络切换指示之前, 若所述终端的 数据业务为双模式传输业务, 接收所述第一网络的网络侧设备发送的释放 电路交换业务链接指示; 或, 若所述终端的数据业务为纯电路交换业务, 接收所述第一网络的网络侧设备发送的释放临时块流指示。
图 8C为图 8 A或图 8B中第一切换指示接收模块的结构示意图。如图 8C所 示, 第一切换指示接收模块 82包括: 第一测量指示接收单元 821、 第一测量 报告单元 822和第一切换指示接收单元 823。
第一测量指示接收单元 821 , 用于所述终端有第二网络业务需求时, 接 收所述第一网络的网络侧设备发送的第一测量指示, 所述第一测量指示用 于指示所述终端测量所述第二网络的信号质量。
第一测量报告单元 822, 用于测量到所述第二网络的信号质量达到质量 门限时, 向第一网络的网络侧设备发送第一测量报告; 所述第一测量报告 用于通知所述第二网絡的信号质量达到质量门限。
第一切换指示接收单元 823 , 用于接收第一网络的网络侧设备发送的包 括所述第二网络配置信息的网络切换指示。
本发明实施例提供的终端从第一网络接入, 并在第一网络通过第一业 务请求模块 81向第一网络的网络侧设备发送业务请求。 第一网络的网络侧 设备监测到终端有第二网络业务需求时, 第一切换指示接收模块 82接收所 述第一网络的网络侧设备发送的包括所述第二网络配置信息的网络切换指 示, 终端根据该指示从第一网络切换到第二网络驻留, 从而在第二网络进 行高速度的数据传输。
图 8D为本发明实施例提供的又一种终端结构示意图。 如图 8D所示, 本 实施例提供的终端包括: 第二业务请求模块 84和第二切换指示接收模块 85。
第二业务请求模块 84 , 用于终端在第二网络向第二网络的网络侧设备 发送业务请求; 所述第二网络的平均数据传输速率高于第一网络的平均数 据传输速率, 所述第二网络内除导频信道之外的所有公共物理信道或部分 公共物理信道处于关闭状态。
其中, 所述业务请求中可包括网络切换请求, 所述网络切换请求用于 请求切换到第一网络。 第二网络的网络侧设备接收到包括有网络切换请求 的业务请求时, 确定终端没有第二网络业务需求。 另外, 还可包括第二业 务量通知模块。 第二业务量通知模块, 用于监测到终端的数据业务量小于 业务量门限时, 向无线网络控制器发送第二业务量通知消息; 所述第二业 务量通知消息用于向第二网络的网络侧设备通知所述终端的数据业务量小
于业务量门限。 第二网络的网络侧设备接收到第二业务量通知消息时, 确 定终端没有第二网络业务需求。
其中, 业务请求中可包括网络切换请求, 所述网络切换请求用于请求 切换到第一网络。 接收到包括有所述网络切换请求的业务请求时, 确定终 端没有第二网络业务需求。 另外, 终端还可包括第二业务量通知模块。 第 二业务量通知模块, 用于监测到终端的数据业务量小于业务量门限时, 向 第一网络的网络侧设备发送第二业务量通知消息; 所述第一业务量通知消 息用于向第二网络的网络侧设备通知所述终端的数据业务量小于业务量门 限。 第一网络的网络侧设备接收到第二业务量通知消息时, 确定终端没有 第二网络业务需求。
第二切换指示接收模块 85 , 用于终端没有第二网络业务需求时, 接收 第二网络的网络侧设备发送的包括第一网络配置信息的网络切换指示或向 所述终端发送状态迁移指示; 所述网络切换指示用于指示所述终端从第二 网络切换到第一网络, 所述状态迁移指示用于指示所述终端从占用第二网 络专用信道的状态迁移到不占用第二网络专用信道的状态。
本发明实施列提供的终端驻留在第二网络后, 在第二网络内通过第二 业务请求模块 84向第二网络的网络侧设备发送业务请求。 第二网络的网络 侧设备监测到终端没有第二网络业务需求时, 第二切换指示接收模块 85接 收所述第二网络的网络侧设备发送的包括所述第一网络配置信息的网络切 换指示, 终端根据该指示从第二网络切换到第一网络, 从而第二网络不需 要维护没有第二网络业务需求的终端。
在本发明的所有实施例中, 所述 "模块" 和 "单元" 可以为逻辑实体, 也可以为物理实体, 均可以通过物理设备进行实现, 例如处理器, 芯片等。
图 9为本发明实施例提供的一种通信系统结构示意图。 如图 9所示, 该 系统包括: 第一网络的网络侧设备 91、 第二网络的网络侧设备 92和终端 93。
第一网络的网络侧设备 91 , 用于监测到第一网络中终端有第二网络业 务需求时, 向所述终端发送网络切换指示, 指示所述终端从第一网络切换 到第一网络; 所述第一网络同覆盖有所述第二网络; 所述第二网络的平均 数据传输速率高于所述第一网络的平均数据传输速率, 所述第二网络内除 导频信道之外的所有公共物理信道或部分公共物理信道处于关闭状态。
其中, 第一网络的网络侧设备 91实现的功能可参见图 6A至图 6C提供的 第一网络的网络侧设备。
第二网络的网络侧设备 92, 用于监测到第二网络中的终端没有第二网 络业务需求时, 向所述终端发送包括所述第一网络配置信息的网络切换指 示或向所述终端发送状态迁移指示; 指示所述终端从第二网络切换到第一 网络, 所述状态迁移指示用于指示所述终端从占用所述第二网络专用信道 的状态迁移到不占用所述第二网络专用信道的状态。
其中, 第二网络的网络侧设备 92实现的功能可参见图 7 A至图 7B对应实 施例的描述。
所述终端 93, 用于从所述第一网络接入, 并在所述第一网络发起业务 请求; 接收所述第一网络的网络侧设备发送的网络切换指示后, 从第一网 络切换到第二网络; 接收到第二网络的网络侧设备发送的网络切换指示后, 从所述第二网缉切换到第一网络。
其中, 终端 93实现的功能可参见图 8A至图 8D对应实施例的描述。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机 可读取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程序 代码的介质。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通
技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修 改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不 使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。
Claims
1、 一种通信方法, 其特征在于, 包括:
监测第一网络中的终端是否有第二网络业务需求; 所述第一网络同覆 盖有所述第二网络; 所述第二网络的平均数据传输速率高于所述第一网络 的平均数据传输速率, 所述第二网络内除导频信道之外的所有公共物理信 道或部分公共物理信道处于关闭状态;
所述终端有第二网络业务需求时, 向所述终端发送包括所述第二网络 配置信息的网络切换指示, 所述网络切换指示用于指示所述终端从所述第 一网络切换到所述第二网络。
2、 根据权利要求 1所述的方法, 其特征在于, 所述监测终端是否有第 二网络业务需求, 所述终端有第二网络业务需求时, 向所述终端发送包括 所述第二网络配置信息的网络切换指示, 包括:
监测所述终端的数据业务量是否达到业务量门限; 所述终端的数据业 务量达到业务量门限时, 向所述终端发送包括所述第二网络配置信息的网 络切换指示; 或,
监测所述终端的业务请求中是否携带有网络切换请求; 所述网络切换 请求用于请求切换到第二网络; 所述终端的业务请求中携带有所述网络切 换请求时, 向所述终端发送包括所述第二网络配置信息的网络切换指示; 或,
监测是否接收到所述终端发送的第一业务量通知消息; 所述第一业务 量通知消息用于向基站控制器通知所述终端的数据业务量达到业务量门 限; 接收到所述终端发送的第一业务量通知消息时, 向所述终端发送包括 所述第二网络配置信息的网络切换指示。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述终端有第二网络 业务需求时, 向所述终端发送包括所述第二网络配置信息的网络切换指示, 包括: 所述终端有第二网络业务需求时, 向所述终端发送第一测量指示, 所 述第一测量指示用于指示所述终端测量所述第二网络的信号质量;
接收所述终端发送的第一测量报告时, 向所述终端发送包括所述第二 网络配置信息的网络切换指示; 所述第一测量报告用于通知所述第二网络 的信号质量达到盾量门限值。
4、 根据权利要求 1、 2或 3所述的方法, 其特征在于, 在向所述终端发 送包括所述第二网络配置信息的网络切换指示之前, 还包括:
若所述终端的数据业务为双模式传输业务, 向所述终端发送释放分组 交换业务链接指示; 或,
若所述终端的数据业务为分组交换业务, 向所述第二网络的网络侧设 备发送信道打开指示, 所述信道打开指示用于指示所述第二网络打开处于 关闭状态的公共物理信道; 向所述终端发送释放临时块流指示。
5、 一种通信方法, 其特征在于, 包括:
监测第二网络中的终端是否有第二网络业务需求; 第一网络同覆盖有 所述第二网络; 所述第二网络的平均数据传输速率高于所述第一网络的平 均数据传输速率, 所述第二网络内除导频信道之外的所有公共物理信道或 部分公共物理信道处于关闭状态;
所述终端没有第二网络业务需求时, 向所述终端发送包括所述第一网 络配置信息的网络切换指示或向所述终端发送状态迁移指示; 所述网络切 换指示用于指示所述终端从第二网络切换到第一网络, 所述状态迁移指示 用于指示所述终端从占用所述第二网络专用信道的状态迁移到不占用所述 第二网络专用信道的状态。
6、 根据权利要求 5所述的方法, 其特征在于, 还包括:
若所述终端的业务为分组交换业务, 在第一网络的网络侧设备向所述 终端发送包括第二网络配置信息的网络切换指示之前, 接收所述第一网络 的网络侧设备发送的信道打开指示, 所述信道打开指示用于指示打开所述 第二网络处于关闭状态的公共物理信道; 所述网络切换指示用于指示所述 终端从所述第一网络切换到所述第二网络。
7、 根据权利要求 5或 6所述的方法, 其特征在于, 所述监测终端是否有 第二网络业务需求, 所述终端没有第二网络业务需求时, 向所述终端发送 包括第一网络配置信息的网络切换指示或向所述终端发送状态迁移指示, 包括:
监测所述终端的数据业务量是否小于业务量门限; 所述终端的数据业 务量小于业务量门限时, 向所述终端发送包括第一网络配置信息的网络切 换指示或向所述终端发送状态迁移指示; 或,
监测所述终端的业务请求中是否携带有网络切换请求; 所述网络切换 请求用于请求切换到第一网络; 所述终端的业务请求中携带有所述网络切 换请求时, 向所述终端发送包括第一网络配置信息的网络切换指示或向所 述终端发送状态迁移指示; 或,
监测是否接收到所述终端发送的第二业务量通知消息; 所述第二业务 量通知消息用于通知所述终端的数据业务量小于业务量门限; 接收到所述 终端发送的第二业务量通知消息时, 向所述终端发送包括第一网络配置信 息的网络切换指示或向所述终端发送状态迁移指示。
8、 一种网络侧通信设备, 其特征在于, 包括:
第一监测模块, 用于监测第一网络中的终端是否有第二网络业务需求; 所述第一网络同覆盖有所述第二网络; 所述第二网络的平均数据传输速率 高于所述第一网络的平均数据传输速率, 所述第二网络内除导频信道之外 的所有公共物理信道或部分公共物理信道处于关闭状态;
第一切换指示模块, 用于所述终端有第二网络业务需求时, 向所述终 端发送包括所述第二网络配置信息的网络切换指示, 所述网络切换指示用 于指示所述终端从所述第一网络切换到所述第二网络。
9、 根据权利要求 8所述设备, 其特征在于: 所述第一监测模块, 进一步用于监测所述终端的数据业务量是否达到 业务量门限; 所述第一切换指示模块, 进一步用于所述终端的数据业务量 达到业务量门限时, 向所述终端发送包括所述第二网络配置信息的网络切 换指示;
或, 所述第一监测模块, 进一步用于监测所述终端的数据业务请求中 是否携带有网络切换请求; 所述网络切换请求用于请求切换到所述第二网 络; 所述第一切换指示模块, 进一步用于所述终端的业务请求中携带有所 述网络切换请求时, 向所述终端发送包括所述第二网络配置信息的网络切 换指示;
或, 所述第一监测模块, 进一步用于监测是否接收到所述终端发送的 第一业务量通知消息; 所述第一业务量通知消息用于通知所述终端的数据 业务量达到业务量门限; 所述第一切换指示模块, 进一步用于接收到所述 终端发送的第一业务量通知消息时, 向所述终端发送包括所述第二网络配 置信息的网络切换指示。
10、 根据权利要求 8或 9所述设备, 其特征在于, 所述第一切换指示模 块包括:
第一测量指示单元, 用于所述终端有第二网络业务需求时, 向所述终 端发送第一测量指示, 所述第一测量指示用于指示所述终端测量所述第二 网络的信号质量;
测量报告接收单元, 用于接收所述终端发送的第一测量报告; 所述第 一测量艮告用于通知所述第二网络的信号质量达到盾量门限值;
第一切换指示单元, 用于接收所述终端发送的第一测量报告时, 向所 述终端发送包括所述第二网络配置信息的网络切换指示。
11、 根据权利要求 8、 9或 10所述设备, 其特征在于, 还包括: 业务指示模块, 用于向所述终端发送包括所述第二网络配置信息的网 络切换指示之前, 若所述终端的数据业务为双模式传输业务, 向所述终端 发送释放分组交换业务链接指示; 若所述终端的数据业务为电路交换业务, 向所述第二网络的网络侧设备发送信道打开指示, 所述信道打开指示用于 指示所述第二网络的网络侧设备打开所述第二网络处于关闭状态的公共物 理信道; 并向所述终端发送释放临时块流指示。
12、 一种网络侧通信设备, 其特征在于, 包括:
第二监测模块, 用于监测第二网络中的终端是否有第二网络业务需求; 第一网络同覆盖有所述第二网络; 所述第二网絡的平均数据传输速率高于 所述第一网络的平均数据传输速率, 所述第二网络内除导频信道之外的所 有公共物理信道或部分公共物理信道处于关闭状态;
第二切换指示模块, 用于所述终端没有第二网络业务需求时, 向所述 终端发送包括所述第一网络配置信息的网络切换指示或向所述终端发送状 态迁移指示; 所述网络切换指示用于指示所述终端从第二网络切换到第一 网络, 所述状态迁移指示用于指示所述终端从占用所述第二网络专用信道 的状态迁移到不占用所述第二网络专用信道的状态。
13、 根据权利要求 12所述设备, 其特征在于, 还包括:
信道打开接收模块, 用于第一网絡的网络侧设备向所述终端发送包括 第二网络配置信息的网络切换指示之前, 若所述终端的数据业务为纯分组 交换域业务, 接收所述第一网络的网絡侧设备发送的信道打开指示, 所述 信道打开指示用于指示打开所述第二网絡处于关闭状态的公共物理信道; 所述网络切换指示用于指示所述终端从所述第一网络切换到所述第二网 络。
14、 根据权利要求 12或 13所述设备, 其特征在于:
所述第二监测模块, 用于监测所述终端的数据业务量是否小于业务量 门限; 所述第二切换指示模块, 用于所述终端的数据业务量小于业务量门 限时, 向所述终端发送包括所述第一网络配置信息的网络切换指示或向所 述终端发送状态迁移指示; 或, 所述第二监测模块, 用于监测所述终端的业务请求中是否携带有 网络切换请求; 所述网络切换请求用于请求切换到所述第一网络; 所述终 端的业务请求中携带有网络切换请求时, 向所述终端发送包括所述第一网 络配置信息的网络切换指示或向所述终端发送状态迁移指示;
或, 所述第二监测模块, 用于监测是否接收到所述终端发送的第二业 务量通知消息; 所述第二业务量通知消息用于通知所述终端的数据业务量 小于业务量门限; 所述第二切换指示模块, 用于接收到所述终端发送的第 二业务量通知消息时, 向所述终端发送包括所述第一网络配置信息的网络 切换指示或向所述终端发送状态迁移指示。
15、 一种终端, 其特征在于, 包括:
第一业务请求模块 , 用于终端在第一网络向第一网络的网络侧设备发 送业务请求; 第二网络的平均数据传输速率高于所述第一网络的平均数据 传输速率, 所述第二网络内除导频信道之外的所有公共物理信道或部分公 共物理信道处于关闭状态;
第一切换指示接收模块, 用于所述终端有第二网络业务需求时, 接收 所述第一网络的网络侧设备发送的包括所述第二网络配置信息的网络切换 指示, 所述网络切换指示用于指示所述终端从所述第一网络切换到所述第 二网络。
16、 根据权利要求 15所述终端, 其特征在于, 所述业务请求中包括第 二网络切换请求, 所述第二网络切换请求用于请求切换到第二网络。
17、 根据权利要求 15或 16所述终端, 其特征在于, 还包括:
第一业务量通知模块, 用于监测到数据业务量达到业务量门限时, 向 所述第一网络的网络侧设备发送第一业务量通知消息; 所述第一业务量通 知消息用于通知所述终端的数据业务量达到业务量门限。
18、 根据权利要求 15或 16所述终端, 其特征在于, 第一切换指示接收 模块包括: 第一测量指示接收单元, 用于所述终端有第二网络业务需求时, 接收 所述第一网络的网络侧设备发送的第一测量指示, 所述第一测量指示用于 指示所述终端测量所述第二网络的信号质量;
第一测量报告单元, 用于测量到所述第二网络的信号质量达到质量门 限时, 向所述基站控制器发送第一测量报告; 所述第一测量报告用于通知 所述第二网络的信号质量达到质量门限;
第一切换指示接收单元, 用于接收向所述第一网络的网络侧设备发送 的包括所述第二网络配置信息的网络切换指示。
19、 根据权利要求 15至 18任一项所述终端, 其特征在于, 还包括: 业务指示接收模块 , 用于接收所述第一网络的网络侧设备发送的网络 切换指示之前, 若所述终端的数据业务为双模式传输业务, 接收所述第一 网络的网络侧设备发送的释放电路交换业务链接指示; 或, 若所述终端的 数据业务为纯电路交换业务, 接收所述第一网络的网络侧设备发送的释放 临时块流指示。
20、 一种终端, 其特征在于, 包括:
第二业务请求模块, 用于所述终端在第二网络向第二网络的网络侧设 备发送业务请求; 所述第二网络的平均数据传输速率高于第一网络的平均 数据传输速率, 所述第二网络内除导频信道之外的所有公共物理信道或部 分公共物理信道处于关闭状态;
第二切换指示接收模块, 用于所述终端没有第二网络业务需求时, 接 收第二网络的网络侧设备发送的包括第一网络配置信息的网络切换指示或 向所述终端发送状态迁移指示; 所述网络切换指示用于指示所述终端从第 二网络切换到第一网络, 所述状态迁移指示用于指示所述终端从占用第二 网络专用信道的状态迁移到不占用第二网络专用信道的状态。
21、 根据权利要求 20所述终端, 其特征在于, 所述业务请求中包括网 络切换请求, 所述网络切换请求用于向第一网络的网络侧设备请求切换到 第一网络。
22、 根据权利要求 20或 21所述终端, 其特征在于, 还包括:
第二业务量通知模块, 用于监测到终端的数据业务量小于业务量门限 时, 向第一网络的网络侧设备发送第二业务量通知消息; 所述第二业务量 通知消息用于通知所述终端的数据业务量小于业务量门限。
23、 一种通信系统, 其特征在于, 包括:
第一网络的网络侧设备, 用于监测到第一网络中终端有第二网络业务 需求时, 向所述终端发送网络切换指示, 指示所述终端从第一网络切换到 第一网络; 所述第一网络同覆盖有所述第二网络; 所述第二网络的平均数 据传输速率高于所述第一网络的平均数据传输速率, 所述第二网络内除导 频信道之外的所有公共物理信道或部分公共物理信道处于关闭状态;
第二网络的网络侧设备, 用于监测到第二网络中的终端没有第二网络 业务需求时, 向所述终端发送包括所述第一网络配置信息的网络切换指示 或向所述终端发送状态迁移指示; 指示所述终端从第二网络切换到第一网 络, 所述状态迁移指示用于指示所述终端从占用所述第二网络专用信道的 状态迁移到不占用所述第二网络专用信道的状态;
所述终端, 用于从所述第一网络接入, 并在所述第一网络发起业务请 求; 接收所述第一网络的网络侧设备发送的网絡切换指示后, 从第一网络 切换到第二网络; 接收到第二网络的网络侧设备发送的网络切换指示后, 从所述第二网缉切换到第一网络。
24、 根据权利要求 23所述系统, 其特征在于:
所述第一网络的网络侧设备, 进一步用于监测所述终端的数据业务量 是否达到业务量门限, 所述终端的数据业务量达到业务量门限时, 向所述 终端发送包括所述第二网络配置信息的网络切换指示; 或, 所述第一网络的网络侧设备, 进一步用于监测所述终端的数据业务请 求中是否携带有第一网络切换请求, 所述终端的业务请求中携带有第一网 络切换请求时, 向所述终端发送包括所述第二网络配置信息的网络切换指 示 或,
所述第一网络的网络侧设备, 进一步用于监测是否接收到所述终端发 送的第一业务量通知消息, 接收到所述终端发送的第一业务量通知消息时, 向所述终端发送包括所述第二网络配置信息的网絡切换指示; 所述第一业 务量通知消息用于通知所述终端的数据业务量达到业务量门限。
25、 根据权利要求 23所述系统, 其特征在于, 所述第二网络的网络侧 设备, 还用于所述第一网络的网络侧设备向所述终端发送包括第二网络配 置信息的网络切换指示之前, 若所述终端的数据业务为纯分组交换业务, 接收所述第一网络的网络侧设备发送的信道打开指示, 所述信道打开指示 用于指示打开所述第二网络处于关闭状态的公共物理信道; 所述网络切换 指示用于指示所述终端从所述第一网络切换到所述第二网络。
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