CN102300288A - System indicating method and device as well as network selecting method and device and communication system - Google Patents

Abstract

The invention discloses a system indication method and device, a network selection method and device, and a communication system. The system indication method includes: the network side sends a system message or an overhead message to a terminal; wherein, the system message or the overhead message carries information for Indicates whether there are other wireless access systems near the current system. The present invention can solve the problem of power consumption caused by extra system search by the terminal in the multi-system overlapping coverage area or monitoring of system neighbor cell messages that it does not need to monitor.

Description

System instruction method and device, network selection method and device, communication system

technical field

The present invention relates to the communication field, in particular to a system indication method and device, a network selection method and device, and a communication system.

Background technique

In recent years, with the rapid development of the Internet, the main business growth point of operators has shifted from traditional voice services to high-speed data services, especially the popularity of smart terminals, which has accelerated the demand for wireless high-speed data services. At the end of 2008, with With the distribution of 3G photos, the domestic wireless communication system began to enter the 3G era. However, while telecom operators are vigorously developing 3G services, the number of users in some business areas is too large, and the 3G network bandwidth is difficult to support the data demand. Major telecom operators are also Active deployment of WiFi (Wireless Fidelity, Wireless Fidelity) has made WiFi the most effective way to disperse 3G traffic, filling the gap between the exponential growth of wireless bandwidth and the linear supply of available wireless spectrum. When 3G technology is still advancing in a tortuous way around the world, terminal manufacturers and network operators have begun to study the key technologies of the next generation mobile communication system. Beginning in 2009, LTE (Long Time Evolution, long-term evolution system), which has been generally accepted as the mainstream technology of next-generation wireless communication, began testing or trial commercial activities. Considering that the LTE system still has a long development period from testing to real-scale commercial use People in the industry and academia generally believe that the next generation wireless communication system should be an open heterogeneous wireless network that can organically integrate various existing and future wireless access systems.

It is conceivable that for a long time to come, some areas, especially urban hotspots, will experience the coexistence of multiple wireless systems including 2G, 3G, WLAN (Wireless Local Area Network, wireless local area network), and LTE. When the terminal is in the multi-system coexistence area, there will be some specific requirements for its interoperability with the network, such as power-on network selection, cell reselection, voice services, data services, etc., and when the terminal moves between some wireless communication systems There will also be a need for interconnectivity. In the SIM (Subscriber Identity Module, Subscriber Identity Module)/CSIM (CDMA2000 Subscriber Identify Module, CDMA2000 Subscriber Identity Module)/RUIM (Removable User Identity Module, Removable User Identity Module) card of a terminal or a terminal where the machine card is separated, It will store the data customized by the operator and provide certain network selection parameters for the terminal, so that the terminal can perform completely independent network selection, but the information that such parameters can provide is limited, so that the efficiency and accuracy of this network selection may not be guaranteed. To meet user needs, it is necessary to consider introducing a network-assisted system selection mechanism. At present, some wireless access networks can assist a terminal to select between different wireless access networks by providing neighbor cell information of other systems.

Considering that in the process of network development, the deployment of various wireless access systems by operators and the multi-mode support capabilities of terminals do not match, the above mechanism has certain defects, which may affect terminal performance in some scenarios. First of all, for the independent network selection mechanism of the terminal, a high-capacity multi-mode terminal may store network selection parameters supporting multiple systems of 2G/3G/4G/WLAN at the same time, but the area where it is located may only deploy one Considering the two wireless access technologies, if the terminal still polls and tries to access all the networks stored in it in this network, it will inevitably affect the efficiency of network search or selection, which will lead to unnecessary power consumption of the terminal. Secondly, for the existing mechanism for the network to send neighbor cell information of other systems, the network indicates that the neighbor cell information of other systems will be sent through overhead messages, but does not specify what kind of neighbor cell information of other systems will be sent, and the terminal will regardless of its own capabilities. Always wake up in the corresponding time slot according to the indication and wait to receive the information of the neighboring cells of other systems. If the terminals do not actually support other wireless access technologies configured in this area, the above mechanism will cause these terminals to receive unnecessary information about neighboring cells of other systems, and will also cause unnecessary power consumption.

Taking 3G's CDMA HRPD (Code Division Multiple Access High Speed Packet Data) system as an example, its corresponding standard organization 3GPP2 has defined MMSS (Multi-mode System Selection, multi-mode system selection) The mechanism is used to provide a solution for multi-mode terminals to autonomously select networks when multiple wireless access technologies coexist. lx or HRPD), WiMAX (Worldwide Interoperability for Microwave Access, Microwave Access Global Interoperability) and other wireless access technologies coexist in the network to choose independently. 3GPP2 also provides a network-assisted terminal network selection mechanism. At the most basic level, the CDMA network can send other system neighbor cell information configured by the system to the terminal through the common overhead channel message. The message includes the wireless access system type for Indicates multiple other nearby wireless access technologies, and at the same time, for each type of wireless access system included, it also includes detailed information of the system, such as frequency point, priority information, etc. After receiving the neighbor cell information of the other system, the terminal can perform other system measurements more accurately, and decide whether to reselect to other adjacent systems according to control information such as threshold or priority in the neighbor cell information.

Further, an example is given to illustrate the problems existing in the above mechanism. In an area mainly covered by 3G CDMA technology, if some hotspot areas have already deployed WiFi or WiMAX, operators may delay the deployment of LTE, and if these hotspots have not yet deployed WiFi, operators may Prioritize the deployment of LTE to offload network load or further improve user experience. On the one hand, if the CDMA network does not send other system neighbor information, the terminal under the network will select the network according to the MMSS information stored by itself. If the terminal internally stores a variety of network information, the terminal will poll all these network information in order to lock The network is correct, but in fact the current area may only have CDMA+WiFi or CDMA+WiMAX or only CDMA+LTE. It is a waste for the terminal to search for other systems. On the other hand, if the CDMA network can send information about neighboring cells of other systems according to actual deployment conditions, it may also cause problems for terminals with different capabilities under the network. For example, a terminal that can only support WiMAX and CDMA, when it is in 3G+LTE coverage When it is in the area, it will receive the system instruction to receive the information of other system neighbors, but when it receives the message of the other system neighbors, it finds that the message does not contain the WiMAX neighbor information it needs, then the terminal monitors The power consumption caused by other system neighbor messages is obviously unnecessary.

In the related art, there is no effective solution to the problem of power consumption caused by the terminal performing additional system search in the overlapping coverage area of multiple systems or needing to listen to messages of adjacent cells of the system that it does not need to listen to.

Contents of the invention

The main purpose of the present invention is to provide a system indication method and device, a network selection method and device, and a communication system, so as to at least solve the problem that the above-mentioned terminals perform additional system searches in overlapping coverage areas of multiple systems or need to monitor themselves unnecessary Overheard system neighbor messages pose a power consumption problem.

According to one aspect of the present invention, a system indication method is provided, including: the network side sends a system message or an overhead message to the terminal; wherein, the system message or the overhead message carries information indicating whether there are other Instructions for the wireless access system.

Preferably, the overhead message includes: the first overhead message used by the current system.

Preferably, when the current system is the third Code Division Multiple Access 2000 High Speed Packet Data 3G CDMA2000HRPD system, the overhead message is a quick configuration QuickConfig message.

Preferably, the type of the indication information includes at least one of the following: separately set fields, each of which corresponds to a different other wireless access system; a bitmap, in which different bits in the bitmap correspond to different other Wireless access system.

Preferably, the indication information is further used to indicate that the current system will send part or all of the relevant information of the other wireless access systems, wherein the relevant information includes configuration information and/or load information.

Preferably, the separately set fields correspond to different other wireless access systems, including: when the length of the field is 1 bit, when the value of the field is 0, it means that there is no other wireless access system corresponding to the field When the value of the field is 1, it means that there are other wireless access systems corresponding to the field, and/or related information of other wireless access systems corresponding to the field will be sent later.

Preferably, the separately set fields correspond to different other wireless access systems, including: when the length of the field is 2 bits, when the value of the field is 0, it means that there is no other wireless access system corresponding to the field access system; when the value of the field is 1, it means that there are other wireless access systems corresponding to the field, and there is the first type of related information that will be sent to other wireless access systems corresponding to the field; when the field A value of 2 indicates that there are other wireless access systems corresponding to the field, and there is a second type of related information that will be sent to other wireless access systems corresponding to the field; when the value of the field is 3, it indicates that there is The other wireless access system corresponding to the field, and the first type of related information and the second type of related information of the other wireless access system corresponding to the field are to be sent.

Preferably, after the network side sends the system message or the overhead message to the terminal, the method further includes: the terminal receives the system message or the overhead message, and performs a network selection operation according to the indication information and the capability of the terminal itself.

According to another aspect of the present invention, there is also provided a method for network selection, including: the terminal receives a system message or an overhead message sent by the network side, wherein the system message or the overhead message carries information indicating that the current system is nearby Whether there is indication information of other wireless access systems; the terminal performs a network selection operation according to the indication information and the capability of the terminal itself.

According to another aspect of the present invention, there is also provided a system indicating device, which is set on the network side and includes: a generating module, configured to generate a system message or an overhead message, wherein the system message or the overhead message carries a Indication information for indicating whether other wireless access systems exist near the current system; a sending module, configured to send the system message or the overhead message to the terminal.

According to another aspect of the present invention, there is also provided a network selection device, which is set on the terminal side and includes: a receiving module, configured to receive a system message or an overhead message sent by the network side, wherein the system message or the overhead message The message carries indication information for indicating whether there are other wireless access systems near the current system; the selection module is configured to perform a network selection operation according to the indication information and the capability of the terminal itself.

According to another aspect of the present invention, a communication system is also provided, including the above-mentioned system indicating device and the above-mentioned network selecting device.

In the embodiment of the present invention, the system message or the overhead message sent by the network side to the terminal carries indication information, and the indication information can indicate whether there are other wireless access systems near the current system, and the terminal can clearly Know which wireless access systems are around, and then select the wireless access systems that can be accessed according to the systems that can be accessed by itself and the surrounding wireless access systems. There is no need to poll all networks and try to access them. Further, the efficiency of network search or selection is improved, and unnecessary power consumption of the terminal is avoided. Furthermore, if the terminal does not support a certain wireless access system, it does not need to wake up in the corresponding time slot and wait to receive the information of the neighboring cells of the system, so as to avoid unnecessary reception of the neighboring cell information of other systems by the terminal, which will also cause Unnecessary power consumption.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is a processing flowchart of a system indication method according to an embodiment of the present invention;

Fig. 2 is a processing flowchart of a network selection method according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a network architecture of Embodiment 2 according to an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a system indicating device according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a network selection device according to an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a communication system according to an embodiment of the present invention.

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

As mentioned in the related technology, considering that in the process of network development, the deployment of various wireless access systems by operators and the multi-mode support capabilities of terminals do not match, the processing mechanism mentioned in the related technology has certain defects, resulting in In some scenarios, terminal performance may be affected. First of all, for the independent network selection mechanism of the terminal, a high-capacity multi-mode terminal may store network selection parameters supporting multiple systems of 2G/3G/4G/WLAN at the same time, but the area where it is located may only deploy one Considering the two wireless access technologies, if the terminal still polls and tries to access all the networks stored in it in this network, it will inevitably affect the efficiency of network search or selection, which will lead to unnecessary power consumption of the terminal. Secondly, for the existing mechanism for the network to send neighbor cell information of other systems, the network indicates that the neighbor cell information of other systems will be sent through overhead messages, but does not specify what kind of neighbor cell information of other systems will be sent, and the terminal will regardless of its own capabilities. Always wake up in the corresponding time slot according to the indication and wait to receive the information of the neighboring cells of other systems. If the terminals do not actually support other wireless access technologies configured in this area, the processing mechanism mentioned in the related art will cause these terminals to receive unnecessary information about neighboring cells of other systems, and will also cause unnecessary power consumption.

In order to solve the above technical problems, an embodiment of the present invention provides a system indication method, the processing flow of which is shown in Figure 1, including:

Step S102, the network side generates a system message or an overhead message;

Wherein, the system message or the overhead message carries indication information for indicating whether there are other wireless access systems near the current system;

Step S104, the network side sends a system message or an overhead message to the terminal.

In the embodiment of the present invention, the system message or the overhead message sent by the network side to the terminal carries indication information, and the indication information can indicate whether there are other wireless access systems near the current system, and the terminal can clearly Know which wireless access systems are around, and then select the wireless access systems that can be accessed according to the systems that can be accessed by itself and the surrounding wireless access systems. There is no need to poll all networks and try to access them. Further, the efficiency of network search or selection is improved, and unnecessary power consumption of the terminal is avoided. Furthermore, if the terminal does not support a certain wireless access system, it does not need to wake up in the corresponding time slot and wait to receive the information of the neighboring cells of the system, so as to avoid unnecessary reception of the neighboring cell information of other systems by the terminal, which will also cause Unnecessary power consumption.

There are many types of system messages and overhead messages, and it only needs to carry the above-mentioned indication information. Preferably, the overhead message may include the first overhead message used by the current system. For example, if the current system is a 3G CDMA2000 HRPD system, the overhead message may select the QuickConfig message.

In the system message or the overhead message, different identifiers or fields or other indication class identifiers can be used as the indication information. Preferably, a separately set field can be selected as the indication information, and each field corresponds to a different other wireless access system; or, The bitmap is selected as the indication information, and different bits in the bitmap correspond to different other wireless access systems.

In a preferred embodiment, the indication information is also used to indicate that the current system will send some or all relevant information of other wireless access systems, where the relevant information includes configuration information, and/or load information, and/or other information, The specific type of other information depends on the actual situation.

When using a separately set field to correspond to different other wireless access systems, the value of the field is associated with the length of the field, and two specific implementations are used to illustrate it:

When the field length is 1 bit,

When the value of the field is 0, it means that there is no other wireless access system corresponding to the field;

When the value of the field is 1, it means that other wireless access systems corresponding to the field exist, and/or related information of other wireless access systems corresponding to the field will be sent later.

When the field length is 2 bits,

When the value of the field is 0, it means that there is no other wireless access system corresponding to the field;

When the value of the field is 1, it means that there are other wireless access systems corresponding to the field, and there is the first type of related information of other wireless access systems corresponding to the field to be sent;

When the value of the field is 2, it means that there are other wireless access systems corresponding to the field, and there is a second type of related information about other wireless access systems corresponding to the field to be sent;

When the value of the field is 3, it means that other wireless access systems corresponding to the field exist, and at the same time, the first type of related information and the second type of related information of other wireless access systems corresponding to the field to be sent exist.

Now set the first type of related information as configuration information, and the second type of related information as load information. Please refer to Table 1 for the values and meanings of the corresponding fields:

Table I

In a specific implementation, the field length can also be 3 bits, 4 bits, up to several thousand or hundreds of bits, etc., and the field length is selected according to specific situations.

In a preferred embodiment, after the network side sends the system message or the overhead message to the terminal, it further includes: the terminal receives the system message or the overhead message, and performs a network selection operation according to the indication information and the capability of the terminal itself.

Based on the same inventive concept, an embodiment of the present invention also provides a network selection method, the processing flow of which is shown in Figure 2, including:

Step S202, the terminal receives a system message or an overhead message sent by the network side;

Wherein, the system message or the overhead message carries indication information for indicating whether there are other wireless access systems near the current system;

Step S204, the terminal performs a network selection operation according to the indication information and the capability of the terminal itself.

It can be known from the above that, in the embodiment of the present invention, the system sends a system message or an overhead message to the terminal, wherein the message carries indication information for indicating whether there are other wireless access systems near the current system. If the current system does not send information about adjacent cells of other systems in the future, the terminal can use the other wireless access system indication information to perform network selection operations only using network selection parameters that match the other wireless access systems indicated in the information, if Subsequently, the current system will also send related information of other adjacent wireless access systems, and the other wireless access system indication information is also used to indicate which other wireless access system related information the current system will send.

The specific processing methods provided by the embodiments of the present invention are described below with reference to the accompanying drawings.

Embodiment one

The network side sets the indication information of other wireless access systems and sends them to the terminal through the overhead message. If the multi-mode terminal under the network uses the MMSS mechanism for cell reselection, it can use the indication information based on the other wireless access system, first filter The MMSS network parameters stored in the terminal are only used for network reselection in other currently existing wireless access systems.

Embodiment two

The network side sets the instruction information of other wireless access systems and sends them to the terminal through the overhead message. If the multi-mode terminal under the network knows which other wireless access system the system will send, it will use it according to whether it supports the wireless access technology. To determine whether to monitor subsequent related information of other systems, such as neighbor cell configuration information. As shown in Figure 3, the current network is an evolved 3G CDMA2000HRPD network, and only the WiMAX system is configured as an adjacent cell. The network will first send an overhead message containing the indication information of the WiMAX system, and indicate that it will also send an overhead message containing the adjacent WiMAX system Parameters of different system neighboring cell information, when a terminal supporting LTE and enhanced HRPD (eHRPD) enters the system, the terminal first monitors the overhead message and finds that the system does not indicate that there is an adjacent LTE system, then the terminal will not wake up to monitor the follow-up Inter-system neighbor cell information, which is beneficial to terminal power saving.

Embodiment three

The network side sets the indication information of other wireless access systems and sends them to the terminal through the overhead message. If the multi-mode terminal under the network knows which other wireless access system information the system will send, it will send the information according to whether it supports the wireless access system. The input technology is used to determine whether to monitor subsequent related information of other systems, such as neighbor cell load information.

Based on the same inventive concept, an embodiment of the present invention also provides a system indicating device, which is set on the network side, and its structural diagram is shown in Figure 4, including:

A generating module 401, configured to generate a system message or an overhead message, where the system message or the overhead message carries indication information for indicating whether there are other wireless access systems near the current system;

The sending module 402 is connected to the generating module 401 and configured to send system messages or overhead messages to the terminal.

Based on the same inventive concept, an embodiment of the present invention also provides a network selection device, which is set on the terminal side, and its structural diagram is shown in Figure 5, including:

The receiving module 501 is configured to receive a system message or an overhead message sent by the network side, where the system message or the overhead message carries indication information for indicating whether there are other wireless access systems near the current system;

The selection module 502 is connected with the receiving module 501 and is used for performing network selection operation according to the indication information and the capability of the terminal itself.

Based on the same inventive concept, an embodiment of the present invention also provides a communication system, as shown in FIG. 6, including a system indicating device 601 and a network selecting device 602. For the specific structure of the system indicating device 601, please refer to FIG. 4, and the network selecting device 602 Please refer to Figure 5 for the specific structure.

From the above description, it can be seen that the present invention achieves the following technical effects:

In the embodiment of the present invention, the system message or the overhead message sent by the network side to the terminal carries indication information, and the indication information can indicate whether there are other wireless access systems near the current system, and the terminal can clearly Know which wireless access systems are around, and then select the wireless access systems that can be accessed according to the systems that can be accessed by itself and the surrounding wireless access systems. There is no need to poll all networks and try to access them. Further, the efficiency of network search or selection is improved, and unnecessary power consumption of the terminal is avoided. Furthermore, if the terminal does not support a certain wireless access system, it does not need to wake up in the corresponding time slot and wait to receive the information of the neighboring cells of the system, so as to avoid unnecessary reception of the neighboring cell information of other systems by the terminal, which will also cause Unnecessary power consumption.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices Alternatively, they may be implemented in program code executable by a computing device so that they may be stored in a storage device to be executed by a computing device, and in some cases in an order different from that shown here The steps shown or described are carried out, or they are separately fabricated into individual integrated circuit modules, or multiple modules or steps among them are fabricated into a single integrated circuit module for implementation. As such, the present invention is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (12)

1. A system indication method, characterized in that, comprising: The network side sends system messages or overhead messages to the terminal; Wherein, the system message or the overhead message carries indication information for indicating whether there are other wireless access systems near the current system. 2. The method according to claim 1, wherein the overhead message comprises: the first overhead message used by the current system. 3. method according to claim 2, it is characterized in that, when described current system is the 3rd Code Division Multiple Access 2000 high-speed packet data 3G CDMA2000HRPD system, described overhead message is a quick configuration QuickConfig message. 4. The method according to any one of claims 1 to 3, wherein the type of the indication information includes at least one of the following: Separately set fields, each of which corresponds to a different other wireless access system; A bitmap, where different bits in the bitmap correspond to different other wireless access systems. 5. The method according to claim 4, wherein the indication information is further used to indicate that the current system will send part or all of the relevant information of the other wireless access systems, wherein the relevant information includes configuration information and/or load information. 6. The method according to claim 4, wherein the separately set fields correspond to different other wireless access systems, comprising: When the field length is 1 bit, When the value of the field is 0, it means that there is no other wireless access system corresponding to the field; When the value of the field is 1, it indicates that other wireless access systems corresponding to the field exist, and/or related information of other wireless access systems corresponding to the field will be sent later. 7. The method according to claim 4, wherein the separately set fields correspond to different other wireless access systems, comprising: When the field length is 2 bits, When the value of the field is 0, it means that there is no other wireless access system corresponding to the field; When the value of the field is 1, it means that there are other wireless access systems corresponding to the field, and there is a first type of related information that will be sent to the other wireless access systems corresponding to the field; When the value of the field is 2, it means that there are other wireless access systems corresponding to the field, and there is a second type of related information about the other wireless access systems corresponding to the field that will be sent; When the value of the field is 3, it means that there are other wireless access systems corresponding to the field, and there is the first type of related information and the second type of information that will be sent to the other wireless access systems corresponding to the field Related Information. 8. The method according to claim 1, characterized in that after the network side sends the system message or the overhead message to the terminal, it further comprises: The terminal receives the system message or the overhead message, and performs a network selection operation according to the indication information and the capability of the terminal itself. 9. A network selection method, characterized in that, comprising: The terminal receives a system message or an overhead message sent by the network side, where the system message or the overhead message carries indication information for indicating whether there are other wireless access systems near the current system; The terminal performs a network selection operation according to the indication information and the capability of the terminal itself. 10. A system indicating device, characterized in that it is set on the network side, comprising: A generating module, configured to generate a system message or an overhead message, where the system message or the overhead message carries indication information for indicating whether other wireless access systems exist near the current system; A sending module, configured to send the system message or the overhead message to the terminal. 11. A network selection device, characterized in that it is set on the terminal side, comprising: A receiving module, configured to receive a system message or an overhead message sent by the network side, wherein the system message or the overhead message carries indication information for indicating whether there are other wireless access systems near the current system; A selection module, configured to perform a network selection operation according to the indication information and the capability of the terminal itself. 12. A communication system, characterized by comprising the system indication device according to claim 10 and the network selection device according to claim 11.

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