CN102761907A - Processing method and system for regulating carrier frequency of access node - Google Patents
Processing method and system for regulating carrier frequency of access node Download PDFInfo
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- CN102761907A CN102761907A CN2011101039607A CN201110103960A CN102761907A CN 102761907 A CN102761907 A CN 102761907A CN 2011101039607 A CN2011101039607 A CN 2011101039607A CN 201110103960 A CN201110103960 A CN 201110103960A CN 102761907 A CN102761907 A CN 102761907A
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Abstract
The invention discloses a processing method for regulating carrier frequency of an access node. The method comprises the steps as follows: the access node sends carrier frequency regulating information to a terminal, and the terminal carries out corresponding processing according to the received carrier frequency regulating information. The invention further discloses a processing system for regulating carrier frequency of an access node. Under the condition that the access node sends the carrier frequency regulating information to the terminal, processing units in the system enable the terminal to carry out the corresponding processing according to the received carrier frequency regulating information. The method and the system provided by the invention solve the problems of load imbalance and same frequency interference of the work carrier frequency through regulation of the carrier frequency, thereby improving the overall service quality of the system.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and a system for adjusting a carrier frequency by an access node.
Background
With the development of mobile internet and the popularization of smart phones, the demand of mobile data traffic is rapidly increasing, and the rapidly increasing data traffic poses a serious challenge to the transmission capability of a mobile communication network. Mobile data traffic will also double each year and ten years will double by one thousand times as predicted by authorities within the next decade (2011-.
Most mobile data services mainly occur in indoor and hot spot environments, and are reflected in a nomadic/local wireless access scene. Statistically, nearly 70% of the mobile data traffic currently occurs indoors, and this proportion will continue to increase, with an expectation that it will exceed 80% by 2012. The data service is mainly internet service, and has a single requirement on the service quality, which is far lower than the requirement on the service quality of the traditional telecommunication service. The cellular mobile communication system is mainly designed for the traditional telecommunication service of high-speed movement and seamless switching, and when the cellular mobile communication system bears the large-flow low-speed IP (internet protocol) data packet service, the efficiency is low and the cost is overhigh.
Cellular mobile operators need a solution with low cost, which is suitable for nomadic/local wireless data access, and further reduce and optimize the overhead of the original system on the premise of reducing the equipment cost, so as to further improve the throughput of the system and meet the requirements of data users developing at a high speed. In most nomadic/local wireless data access solutions, the deployment of access nodes is flexible, the owner of the access node freely sets working carrier frequencies, and uniform distribution and planning are not performed by operators, so that the problem of unbalanced load of different working carrier frequencies is easily caused, and the problem of same-frequency interference can be caused if the set working carrier frequencies are the same, and the problems can reduce the overall service quality of the system.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a method and a system for adjusting carrier frequency by an access node, which solve the problems of unbalanced load of working carrier frequency and co-channel interference through carrier frequency adjustment, thereby improving the overall service quality of the system.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a processing method for adjusting carrier frequency by an access node comprises the following steps:
the access node sends carrier frequency adjustment information to the terminal; and the terminal carries out corresponding processing according to the received carrier frequency adjustment information.
The specific steps of the terminal performing corresponding processing according to the received carrier frequency adjustment information include: under the condition that the terminal decides the processing mode, if the terminal decides to adjust the carrier frequency, the terminal adjusts the carrier frequency according to the carrier frequency adjusting information; and if the terminal decides to switch, the terminal actively initiates the operation of switching to other nodes.
The specific steps of the terminal performing corresponding processing according to the received carrier frequency adjustment information include: under the condition that an access node decides a processing mode of a terminal, if the access node decides that the terminal needs to carry out carrier frequency adjustment, the terminal carries out carrier frequency adjustment according to the carrier frequency adjustment information; if the access node determines that the terminal needs to be switched, the access node actively initiates the operation of switching the terminal to other access nodes.
Wherein the carrier frequency adjustment information specifically includes: the access node selects the working frequency to be used and adjusts the effective time.
The sending, by the access node, carrier frequency adjustment information to the terminal specifically includes: and the access node sends the carrier frequency adjustment information to the terminal in a broadcasting or proprietary signaling mode.
Before the access node sends the carrier frequency adjustment information to the terminal, the method further includes: the access node sends the neighbor cell information to the terminal, and the terminal scans and measures the neighbor access node according to the neighbor cell information.
When the terminal actively initiates the operation of switching to other access nodes, the method further comprises the following steps: the terminal selects a proper target access node according to the measurement result of the adjacent access nodes and initiates the switching to the target access node; and the access node sends the context information of the terminal to a target access node when the terminal is switched.
When the access node determines a terminal to be switched and actively initiates an operation of switching the terminal to other access nodes, the method further comprises the following steps: the access node selects a proper target access node for the terminal according to the measurement result reported by the terminal, and actively initiates the switching of the terminal to the target access node; and the access node sends the context information of the terminal to a target access node when the terminal is switched.
Wherein, the access node sending the carrier frequency adjustment information to the terminal by the dedicated signaling specifically comprises: the access node determines a terminal needing to adjust the carrier frequency and sends carrier frequency adjustment information to the corresponding terminal needing to adjust the carrier frequency;
optionally, the access node further sends a dedicated preamble to the terminal.
After the terminal adjusts the carrier frequency according to the carrier frequency adjustment information, the method further includes:
if the terminal receives the special preamble information, the terminal uses the special preamble to carry out non-competitive random access to the access node which is adjusted by the carrier frequency before; if the terminal does not receive the special preamble information, the terminal performs random access based on competition to an access node which is adjusted by carrier frequency before;
and after the terminal completes the random access, restoring the data connection with the access node which is adjusted by the carrier frequency before.
A system for processing carrier frequency adjustment by an access node, the system comprising: an information sending unit and a processing unit; wherein,
the information sending unit is used for the access node to send carrier frequency adjustment information to the terminal;
and the processing unit is used for the terminal to perform corresponding processing according to the received carrier frequency adjustment information.
The processing unit is further configured to, when the terminal determines to perform carrier frequency adjustment in a case where the terminal itself decides a processing mode, perform carrier frequency adjustment by the terminal according to the carrier frequency adjustment information; when the terminal determines to switch, the terminal actively initiates the operation of switching to other nodes.
The processing unit is further configured to, when the access node determines that the terminal needs to perform carrier frequency adjustment in a case where the access node determines a processing mode of the terminal, perform carrier frequency adjustment by the terminal according to the carrier frequency adjustment information; when the access node determines that the terminal needs to be switched, the access node actively initiates the operation of switching the terminal to other access nodes.
Wherein the carrier frequency adjustment information specifically includes: the access node selects the working frequency to be used and adjusts the effective time.
The information sending unit is further configured to send the carrier frequency adjustment information to a terminal by the access node in a broadcast or dedicated signaling manner.
The processing unit is further configured to, when the terminal actively initiates a handover operation to another access node, select a suitable target access node according to a measurement result of the neighboring access node and initiate a handover to the target access node; and the access node sends the context information of the terminal to a target access node when the terminal is switched.
The processing unit is further configured to, when the access node determines a terminal to be switched and actively initiates switching of the terminal to another access node, select a suitable target access node for the terminal according to a measurement result reported by the terminal, and actively initiate switching of the terminal to the target access node; and the access node sends the context information of the terminal to a target access node when the terminal is switched.
The access node of the invention sends carrier frequency adjustment information to the terminal; and the terminal carries out corresponding processing according to the received carrier frequency adjustment information. By adopting the invention, the problems of unbalanced load and same frequency interference of the working carrier frequency are solved by carrier frequency adjustment, thereby improving the overall service quality of the system.
Drawings
Fig. 1 is a schematic flow chart of carrier frequency adjustment performed by an access node;
fig. 2 is a flowchart of the terminal determining the processing mode by itself according to the received carrier frequency adjustment information;
fig. 3 is a flow chart of the access node determining the processing mode of the served terminal and performing corresponding processing.
Detailed Description
The basic idea of the invention is: the access node sends carrier frequency adjustment information to the terminal; and the terminal carries out corresponding processing according to the received carrier frequency adjustment information.
A processing method for adjusting carrier frequency by access node mainly includes the following contents:
the access node sends carrier frequency adjustment information to the terminal; and the terminal carries out corresponding processing according to the received carrier frequency adjustment information. Here, the other access nodes refer to nodes other than the access node currently transmitting the carrier frequency adjustment information to the terminal.
Here, the terminal performs corresponding processing according to the received carrier frequency adjustment information, which includes the following two cases:
case 1: under the condition that the terminal decides the processing mode, if the terminal decides to adjust the carrier frequency, the terminal adjusts the carrier frequency according to the carrier frequency adjusting information; and if the terminal decides to switch, the terminal actively initiates the operation of switching to other nodes.
Case 2: under the condition that an access node decides a processing mode of a terminal, if the access node decides that the terminal needs to carry out carrier frequency adjustment, the terminal carries out carrier frequency adjustment according to the carrier frequency adjustment information; if the access node determines that the terminal needs to be switched, the access node actively initiates the operation of switching the terminal to other access nodes.
Further, the carrier frequency adjustment information includes, but is not limited to, information such as an operating frequency selected by the access node and adjustment effective time.
The access node sends carrier frequency adjustment information to the terminal, and further comprises: the access node sends the carrier frequency adjustment information to the terminal through broadcasting or proprietary signaling.
Before the access node sends the carrier frequency adjustment information to the terminal, the method further includes: the access node sends the neighbor cell information to the terminal, and the terminal can perform scanning measurement on the neighbor access node according to the neighbor cell information. The neighbor information refers to: information of access nodes adjacent to the access node, such as carrier frequency, cell identification, etc.
The access node sends the carrier frequency adjustment information to the terminal through the special signaling, and further comprises: the access node determines a terminal needing to adjust the carrier frequency and sends carrier frequency adjustment information to the corresponding terminal needing to adjust the carrier frequency; alternatively, the access node may send the proprietary preamble information to the terminal. Here, the dedicated preamble information is a preamble sequence that is exclusively assigned to a certain terminal for random access.
The access node determines a terminal needing to be switched, and actively initiates switching of the terminal to other access nodes, further comprising: the access node selects a proper target access node for the terminal according to the measurement result reported by the terminal, and actively initiates the switching of the terminal to the target access node; and the access node sends the context information of the terminal to a target access node when the terminal is switched.
And the terminal carries out corresponding carrier frequency adjustment according to the received carrier frequency adjustment information, namely carries out corresponding working frequency adjustment according to the carrier frequency adjustment information.
The terminal adjusts the carrier frequency correspondingly according to the received carrier frequency adjustment information or selects the terminal to actively initiate the operation of switching the terminal to other access nodes, and the method further comprises the following steps:
after receiving the carrier frequency adjustment information, the terminal determines to perform corresponding carrier frequency adjustment or switch the terminal to other access nodes;
if the terminal determines to adjust the carrier frequency, the terminal adjusts the corresponding working frequency according to the carrier frequency adjustment information; and if the terminal decides to switch to other access nodes, the terminal actively initiates to switch the terminal to other access nodes.
After the terminal performs the corresponding carrier frequency adjustment according to the carrier frequency adjustment information, the method may further include:
if the terminal receives the special preamble information, the terminal uses the special preamble to carry out non-competitive random access to the original access node which is adjusted by the carrier frequency before; if the terminal does not receive the special preamble information, the terminal performs random access based on competition to the original access node which is adjusted by the carrier frequency before;
and after the terminal completes the random access, restoring the data connection with the original access node which is subjected to the carrier frequency adjustment.
The terminal actively initiates the terminal to be switched to other access nodes, and the method further comprises the following steps: the terminal selects a proper target access node according to the measurement result of the adjacent access nodes and initiates the switching to the target access node; and the access node sends the context information of the terminal to a target access node when the terminal is switched.
In summary, according to the above-mentioned scheme of the present invention, since the access node can dynamically adjust the operating frequency, the corresponding terminal can select to switch to another access node or select to adjust the operating frequency of the terminal following the adjustment of the access node, by this way, not only can the load be balanced, but also the co-channel interference can be reduced, the overall service quality of the system is improved, and the deployment cost of the communication node is reduced.
The following describes the embodiments in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of carrier frequency adjustment performed by an access node, and in fig. 1, the access node sends carrier frequency adjustment information to a terminal; the terminal adjusts the working carrier frequency of the terminal according to the carrier frequency adjustment information or selects to switch the terminal to other access nodes; the access node switches to the new working carrier frequency.
The following application examples 1 to 3 mainly aim at a scenario in which the terminal in fig. 2 automatically determines a processing mode according to received carrier frequency adjustment information. The process of fig. 2 includes the following steps:
And 103, the terminal adjusts the corresponding working frequency according to the received carrier frequency adjustment information and then ends the process.
And step 104, the terminal actively initiates the operation of switching the terminal to other access nodes and then ends the process.
Application example 1:
the access node a operates at carrier frequency 1 and serves several terminals, such as terminal 1, terminal 2, etc. The access node A finds that the interference of the carrier frequency 1 is large and the interference of the carrier frequency 2 is small in the working process, so that the adjustment to the carrier frequency 2 is determined as the working carrier frequency. The access node a broadcasts and sends carrier frequency adjustment information, such as information of the carrier frequency 2, carrier frequency adjustment effective time and other information. After receiving the carrier frequency adjustment information, the terminal served by the access node A automatically determines whether to carry out carrier frequency adjustment along with the node A or switch to other access nodes. The terminal 1 decides to adjust the carrier frequency following the node a, the terminal 1 adjusts the working carrier frequency to the carrier frequency 2 at the corresponding time according to the carrier frequency adjustment effective time information, then the terminal 1 accesses to the access node a at the carrier frequency 2, for example, after completing the uplink and downlink synchronization by adopting the random access based on competition, the previous data connection and data transmission are resumed.
Application example 2:
the access node a operates at carrier frequency 1 and serves several terminals, such as terminal 1, terminal 2, etc. The access node A finds that the interference of the carrier frequency 1 is large and the interference of the carrier frequency 2 is small in the working process, so that the adjustment to the carrier frequency 2 is determined as the working carrier frequency. The access node a broadcasts and sends carrier frequency adjustment information, such as information of the carrier frequency 2, carrier frequency adjustment effective time and other information. After receiving the carrier frequency adjustment information, the terminal served by the access node A automatically determines whether to carry out carrier frequency adjustment along with the node A or switch to other access nodes. If the terminal 2 is switched to other access nodes, the terminal 2 performs scanning measurement on the adjacent access nodes, then finds out the most suitable adjacent access node, such as the access node B, as the target access node, and the terminal actively initiates switching to the target access node, optionally in this process, the access node a may send the context information of the terminal 2 to the access node B to accelerate the switching of the terminal 2. Finally terminal 2 completes the handover to the access node B, which serves the terminal.
Application example 3:
the access node a operates at carrier frequency 1 and serves several terminals, such as terminal 1, terminal 2, etc. The access node A finds that the interference of the carrier frequency 1 is large and the interference of the carrier frequency 2 is small in the working process, so that the adjustment to the carrier frequency 2 is determined as the working carrier frequency. The access node a broadcasts and sends carrier frequency adjustment information, such as information of the carrier frequency 2, carrier frequency adjustment effective time and other information. Further access node a broadcasts information of transmitting neighboring access nodes. After receiving the carrier frequency adjustment information and the information of the adjacent access nodes, the terminal served by the access node A performs scanning measurement on the adjacent access nodes, if the adjacent access nodes suitable for switching in, such as the access node B, can be found out to be used as target access nodes, the terminal actively initiates switching to the target access nodes, otherwise, the terminal performs corresponding carrier frequency adjustment along with the access node A. Optionally, in this process, the access node a may send context information of the terminal needing to be switched to the neighboring target access node, so as to speed up the switching of the terminal.
The following application examples 4 to 5 mainly aim at the scenario in which the access node in fig. 3 determines the processing mode of the served terminal and performs corresponding processing. The flow of fig. 3 includes the following steps:
And step 204, the terminal performs corresponding adjustment according to the carrier frequency adjustment information and then ends the process.
Application example 4:
the access node a operates at carrier frequency 1 and serves several terminals, such as terminal 1, terminal 2, etc. The access node A finds that the interference of the carrier frequency 1 is large and the interference of the carrier frequency 2 is small in the working process, so that the adjustment to the carrier frequency 2 is determined as the working carrier frequency. The access node A judges the processing modes of different terminals according to the service quality of the served terminal, the information of measurement report of the served terminal and the like received before. If the terminal 1 is decided to adjust the carrier frequency along with the node a, the access node a sends carrier frequency adjustment information to the terminal 1 through a dedicated signaling, the terminal 1 adjusts the working carrier frequency to the carrier frequency 2 at the corresponding time according to the carrier frequency adjustment effective time information after receiving the carrier frequency adjustment information, then the terminal 1 accesses the access node a at the carrier frequency 2, for example, after completing uplink and downlink synchronization by adopting random access based on competition, the previous data connection and data transmission are resumed. If the access node a decides to have the terminal 2 switch to another access node, the access node a may request the terminal 2 to initiate scanning measurement for a neighboring access node, then find out a suitable neighboring access node such as an access node B as a target access node, and then the terminal switches to the target access node B, optionally in this process, the access node a may send context information of the terminal 2 to the access node B to accelerate the switching of the terminal 2.
Application example 5:
the access node a operates at carrier frequency 1 and serves several terminals, such as terminal 1, terminal 2, etc. The access node A finds that the interference of the carrier frequency 1 is large and the interference of the carrier frequency 2 is small in the working process, so that the adjustment to the carrier frequency 2 is determined as the working carrier frequency. The access node broadcasts and sends the information of the adjacent access node to the terminal, the service terminal is required to measure and report the information of the measuring result and the like, and then the access node A judges the processing modes of different terminals according to the measuring result of the terminal. If the terminal 1 is decided to adjust the carrier frequency along with the node a, the access node a sends carrier frequency adjustment information to the terminal 1 through a dedicated signaling, the terminal 1 adjusts the working carrier frequency to the carrier frequency 2 at the corresponding time according to the carrier frequency adjustment effective time information after receiving the carrier frequency adjustment information, then the terminal 1 accesses the access node a at the carrier frequency 2, for example, after completing uplink and downlink synchronization by adopting random access based on competition, the previous data connection and data transmission are resumed. If the access node a decides to switch the terminal 2 to another access node, the access node a finds out a suitable neighboring access node, such as the access node B, as a target access node according to the measurement report of the terminal, and then actively initiates a switching request to switch the terminal to the target access node B, optionally during this process, the access node a can send the context information of the terminal 2 to the access node B to accelerate the switching of the terminal 2.
A system for processing carrier frequency adjustment by an access node, the system comprising: an information sending unit and a processing unit. The information sending unit is used for the access node to send carrier frequency adjustment information to the terminal. The processing unit is used for carrying out corresponding processing according to the received carrier frequency adjustment information under the condition that the access node sends the carrier frequency adjustment information to the terminal.
Here, the processing unit includes the following two specific implementations:
the concrete implementation is that 1: the processing unit is used for adjusting the carrier frequency by the terminal according to the carrier frequency adjustment information when the terminal determines to adjust the carrier frequency under the condition that the terminal decides the processing mode; when the terminal determines to switch, the terminal actively initiates the operation of switching to other nodes.
The concrete implementation 2: the processing unit is used for carrying out carrier frequency adjustment by the terminal according to the carrier frequency adjustment information when the access node determines that the terminal needs to carry out carrier frequency adjustment under the condition that the access node determines the processing mode of the terminal; when the access node determines that the terminal needs to be switched, the access node actively initiates the operation of switching the terminal to other access nodes.
Here, the carrier frequency adjustment information specifically includes: the access node selects the working frequency to be used and adjusts the effective time.
Here, the information sending unit is further configured to send, by the access node, the carrier frequency adjustment information to the terminal through broadcasting or dedicated signaling.
Here, the processing unit is further configured to, when the terminal actively initiates an operation of switching the terminal to another access node, select, by the terminal, a suitable target access node according to a measurement result of the neighboring access node, and initiate switching to the target access node; and the access node sends the context information of the terminal to a target access node when the terminal is switched.
Here, the processing unit is further configured to, when the access node determines that a terminal needs to be switched and actively initiates switching of the terminal to another access node, select, by the access node, a suitable target access node for the terminal according to a measurement result reported by the terminal, and actively initiate switching of the terminal to the target access node; and the access node sends the context information of the terminal to a target access node when the terminal is switched.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (17)
1. A processing method for adjusting carrier frequency by an access node is characterized in that the method comprises the following steps:
the access node sends carrier frequency adjustment information to the terminal; and the terminal carries out corresponding processing according to the received carrier frequency adjustment information.
2. The method according to claim 1, wherein the terminal performing corresponding processing according to the received carrier frequency adjustment information specifically includes: under the condition that the terminal decides the processing mode, if the terminal decides to adjust the carrier frequency, the terminal adjusts the carrier frequency according to the carrier frequency adjusting information; and if the terminal decides to switch, the terminal actively initiates the operation of switching to other nodes.
3. The method according to claim 1, wherein the terminal performing corresponding processing according to the received carrier frequency adjustment information specifically includes: under the condition that an access node decides a processing mode of a terminal, if the access node decides that the terminal needs to carry out carrier frequency adjustment, the terminal carries out carrier frequency adjustment according to the carrier frequency adjustment information; if the access node determines that the terminal needs to be switched, the access node actively initiates the operation of switching the terminal to other access nodes.
4. The method according to claim 1, wherein the carrier frequency adjustment information specifically includes: the access node selects the working frequency to be used and adjusts the effective time.
5. The method of claim 1, wherein the sending, by the access node, carrier frequency adjustment information to the terminal specifically comprises: and the access node sends the carrier frequency adjustment information to the terminal in a broadcasting or proprietary signaling mode.
6. The method of claim 1, wherein before the access node sends carrier frequency adjustment information to the terminal, the method further comprises: the access node sends the neighbor cell information to the terminal, and the terminal scans and measures the neighbor access node according to the neighbor cell information.
7. The method of claim 2, wherein when the terminal actively initiates handover to another access node, the method further comprises: the terminal selects a proper target access node according to the measurement result of the adjacent access nodes and initiates the switching to the target access node; and the access node sends the context information of the terminal to a target access node when the terminal is switched.
8. The method of claim 3, wherein when the access node determines a terminal to be handed over and actively initiates an operation of handing over the terminal to another access node, the method further comprises: the access node selects a proper target access node for the terminal according to the measurement result reported by the terminal, and actively initiates the switching of the terminal to the target access node; and the access node sends the context information of the terminal to a target access node when the terminal is switched.
9. The method of claim 5, wherein the access node sending the carrier frequency adjustment information to the terminal by means of the dedicated signaling specifically comprises: the access node determines a terminal needing to adjust the carrier frequency and sends carrier frequency adjustment information to the corresponding terminal needing to adjust the carrier frequency;
optionally, the access node further sends a dedicated preamble to the terminal.
10. The method of claim 9, wherein after the terminal performs the corresponding carrier frequency adjustment according to the carrier frequency adjustment information, the method further comprises:
if the terminal receives the special preamble information, the terminal uses the special preamble to carry out non-competitive random access to the access node which is adjusted by the carrier frequency before; if the terminal does not receive the special preamble information, the terminal performs random access based on competition to an access node which is adjusted by carrier frequency before;
and after the terminal completes the random access, restoring the data connection with the access node which is adjusted by the carrier frequency before.
11. A system for processing carrier frequency adjustment by an access node, the system comprising: an information sending unit and a processing unit; wherein,
the information sending unit is used for the access node to send carrier frequency adjustment information to the terminal;
and the processing unit is used for the terminal to perform corresponding processing according to the received carrier frequency adjustment information.
12. The system according to claim 11, wherein the processing unit is further configured to, when the terminal determines the processing mode by itself, perform carrier frequency adjustment according to the carrier frequency adjustment information when the terminal determines to perform carrier frequency adjustment; when the terminal determines to switch, the terminal actively initiates the operation of switching to other nodes.
13. The system according to claim 11, wherein the processing unit is further configured to, when the access node determines that the terminal needs to perform carrier frequency adjustment in a case that the access node determines the processing mode of the terminal, perform carrier frequency adjustment by the terminal according to the carrier frequency adjustment information; when the access node determines that the terminal needs to be switched, the access node actively initiates the operation of switching the terminal to other access nodes.
14. The system according to claim 11, wherein the carrier frequency adjustment information specifically includes: the access node selects the working frequency to be used and adjusts the effective time.
15. The system of claim 11, wherein the information sending unit is further configured to send the carrier frequency adjustment information to the terminal by the access node through broadcasting or through proprietary signaling.
16. The system according to claim 12, wherein the processing unit is further configured to, in a case that the terminal actively initiates a handover operation to another access node, select, by the terminal, a suitable target access node according to a measurement result of the neighboring access node, and initiate a handover to the target access node; and the access node sends the context information of the terminal to a target access node when the terminal is switched.
17. The system of claim 13, wherein the processing unit is further configured to, when the access node determines a terminal that needs to be switched and actively initiates switching of the terminal to another access node, select, by the access node, a suitable target access node for the terminal according to a measurement result reported by the terminal, and actively initiate switching of the terminal to the target access node; and the access node sends the context information of the terminal to a target access node when the terminal is switched.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101039607A CN102761907A (en) | 2011-04-25 | 2011-04-25 | Processing method and system for regulating carrier frequency of access node |
| PCT/CN2011/083578 WO2012146030A1 (en) | 2011-04-25 | 2011-12-06 | Processing method and system for access node to adjust carrier frequency |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101039607A CN102761907A (en) | 2011-04-25 | 2011-04-25 | Processing method and system for regulating carrier frequency of access node |
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| CN2011101039607A Pending CN102761907A (en) | 2011-04-25 | 2011-04-25 | Processing method and system for regulating carrier frequency of access node |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108495342A (en) * | 2018-01-29 | 2018-09-04 | 努比亚技术有限公司 | A kind of switching method, terminal, base station and computer readable storage medium |
| CN109716816A (en) * | 2016-09-27 | 2019-05-03 | 索尼公司 | Circuit, base station, method and recording medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1663300A (en) * | 2002-04-29 | 2005-08-31 | 诺基亚有限公司 | Handover of user equipment connection in wireless communication system |
| CN1720756A (en) * | 2002-12-19 | 2006-01-11 | 诺基亚公司 | System and switching mechanism and its device in multi-band environment |
| CN101267658A (en) * | 2007-03-16 | 2008-09-17 | 华为技术有限公司 | Method, device and system for adjusting operating frequency of user equipment |
| CN101668319A (en) * | 2008-09-03 | 2010-03-10 | 中兴通讯股份有限公司 | Method and system for switching carrier waves in base station |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1722895B (en) * | 2004-07-12 | 2010-09-29 | 中兴通讯股份有限公司 | A method of primary carrier frequency reconfiguration in multi-carrier cell |
| WO2008013026A1 (en) * | 2006-07-28 | 2008-01-31 | Kyocera Corporation | Mobile terminal device and handoff method |
| CN101547517B (en) * | 2008-03-25 | 2011-06-01 | 中国移动通信集团公司 | Method and device for controlling user access to mobile communication network |
-
2011
- 2011-04-25 CN CN2011101039607A patent/CN102761907A/en active Pending
- 2011-12-06 WO PCT/CN2011/083578 patent/WO2012146030A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1663300A (en) * | 2002-04-29 | 2005-08-31 | 诺基亚有限公司 | Handover of user equipment connection in wireless communication system |
| CN1720756A (en) * | 2002-12-19 | 2006-01-11 | 诺基亚公司 | System and switching mechanism and its device in multi-band environment |
| CN101267658A (en) * | 2007-03-16 | 2008-09-17 | 华为技术有限公司 | Method, device and system for adjusting operating frequency of user equipment |
| CN101668319A (en) * | 2008-09-03 | 2010-03-10 | 中兴通讯股份有限公司 | Method and system for switching carrier waves in base station |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109716816A (en) * | 2016-09-27 | 2019-05-03 | 索尼公司 | Circuit, base station, method and recording medium |
| CN109716816B (en) * | 2016-09-27 | 2022-10-14 | 索尼公司 | Circuit, base station, method, and recording medium |
| CN108495342A (en) * | 2018-01-29 | 2018-09-04 | 努比亚技术有限公司 | A kind of switching method, terminal, base station and computer readable storage medium |
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| WO2012146030A1 (en) | 2012-11-01 |
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