WO2011018021A1 - Method, system, base station and user equipment for frequency spectrum configuration - Google Patents

Abstract

A method, system, base station and user equipment for frequency spectrum configuration are disclosed in the embodiments of the present invention, and the method for frequency spectrum configuration includes: an indication message is sent to a user equipment, which implicitly or explicitly informs the user equipment of the preset handover time point, and the indication message includes the updated carrier parameters, so that the user equipment is synchronized with the service cell, which uses the updated carrier parameters, after the preset handover time point; the handover is performed at the preset handover time point, thus the service cell of the user equipment uses the updated carrier parameters. The embodiments of the present invention implement the dynamic configuration for the bandwidth and center frequency of Long Term Evolution (LTE) system, and avoid the problem of call drop of user equipment during the frequency spectrum configuration process in LTE, or the problems that a service cell can not be found, etc., thus improving the service quality.

Description

 Spectrum configuration method, system, base station and user equipment The application is filed on August 13, 2009, the Chinese Patent Office, the application number is 200910165222.8, and the Chinese patent application entitled "Spectrum Configuration Method, System, Base Station and User Equipment" Priority is hereby incorporated by reference in its entirety. Technical field

 The embodiments of the present invention relate to the field of communications technologies, and in particular, to a spectrum configuration method, system, base station, and user equipment. Background technique

 The Universal Mobile Telecommunications System (UMTS) is a third-generation mobile communication system using Wideband Code Division Multiple Access (WCDMA) air interface technology. With the high-speed wireless access technology such as the third-generation mobile communication system for Microwave Access; hereinafter referred to as: "WiMAX", the vitality and competitiveness of the WCDMA/Global System for Mobile Communications (hereinafter referred to as GSM) are maintained. The 3rd Generation Partnership Project (3GPP) proposes the Long Term Evolution (LTE) of UMTS, and the physical layer of LTE is connected by orthogonal frequency division multiple access (Orthogonal). Frequency Division Multiplexing; hereinafter referred to as: OFDM) technology.

In the physical layer of the LTE, the spectrum bandwidth of the LTE system may be 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, and 20 MHz, and the system resources are time-frequency resources, that is, resources including two-dimensional time domain and frequency domain. LTE adopts OFDM and Multiple Input Multiple Output (MIMO) as its physical layer technology for wireless network evolution. It can provide the peak rate of downlink 100Mbit/s and uplink 50Mbit/s in the 20MHz spectrum bandwidth, which improves the performance of the cell edge users and improves the performance. Cell capacity, and reduced system latency.

 In the process of implementing the present invention, the inventors have found that the prior art has at least the following problems:

In the LTE standard, the common channel is located at 1.25 MHz bandwidth in the center of the LTE system bandwidth. In the scenario of spectrum switching in the LTE system, for example, the spectrum bandwidth of the LTE system is switched from 10 MHz to 15 MHz. When switching, the corresponding common channel may also change. The change of the common channel may result in user equipment (User Equipment; UE) dropped calls, or the cell was not found. Summary of the invention

 The embodiment of the present invention provides a spectrum configuration method, a system, a base station, and a user equipment, so as to notify the user equipment of the updated carrier parameters before the handover time point, to prevent the user equipment from dropping or finding the serving cell.

 The embodiment of the invention provides a spectrum configuration method, including:

 Sending an indication message to the user equipment, and implicitly or explicitly notifying the user equipment of a preset handover time point, where the indication message includes the updated carrier parameter, so that the user equipment is at the preset switching time point. And then synchronized to the serving cell using the updated carrier parameter;

 Switching is performed at the preset switching time point, so that the serving cell of the user equipment uses the updated carrier parameter.

 The embodiment of the invention further provides a spectrum configuration method, including:

 Receiving an indication message sent by the base station, and obtaining a preset switching time point of the indication message implicit or explicit notification, where the indication message includes the updated carrier parameter;

 A service cell using the updated carrier parameter is synchronized to the preset switching time point.

 The embodiment of the invention further provides a base station, including:

 a sending module, configured to send an indication message to the user equipment, and implicitly or explicitly notify the user equipment of a preset switching time point, where the indication message includes the updated carrier parameter;

a switching module, configured to perform switching at the preset switching time point, so that the user equipment is served The cell uses the updated carrier parameters.

 The embodiment of the invention further provides a user equipment, including:

 a receiving module, configured to receive an indication message sent by the base station, to obtain a preset switching time point of the indication message implicit or explicit notification, where the indication message includes the updated carrier parameter;

 And a synchronization module, configured to synchronize to a serving cell that uses the updated carrier parameter after a preset switching time point obtained by the receiving module.

 The embodiment of the present invention further provides a spectrum configuration system, including: a base station and a user equipment, where the base station is configured to send an indication message to the user equipment, and notify the user equipment of a preset handover time point implicitly or explicitly. The indication message includes the updated carrier parameter, and performs handover at the preset handover time point, so that the serving cell of the user equipment uses the updated carrier parameter;

 The user equipment is configured to receive an indication message sent by the base station, obtain a preset switching time point of the implicit or explicit notification of the indication message, and synchronize to the use location after the preset switching time point. The serving cell of the updated carrier parameter.

 In the embodiment of the present invention, the base station sends the updated carrier parameter to the user equipment by using the indication message before the preset handover time point, and then the base station performs handover at the preset handover time point, so that the serving cell of the user equipment uses the update. After the indication message is received, the user equipment can synchronize to the serving cell using the updated carrier parameter after the preset switching time point; thereby avoiding the user equipment falling off, or finding the serving cell, improving The quality of service. DRAWINGS

 In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are merely Some embodiments of the present invention may be used to obtain other drawings based on these drawings without departing from the prior art.

1 is a flow chart of an embodiment of a spectrum configuration method according to the present invention; 2 is a flow chart of another embodiment of a spectrum configuration method according to the present invention;

 3 is a schematic diagram of an embodiment of a modification period (hereinafter referred to as MP) and a preset switching time point according to the present invention;

 4 is a flowchart of still another embodiment of a spectrum configuration method according to the present invention;

 FIG. 5 is a flowchart of still another embodiment of a spectrum configuration method according to the present invention; FIG.

 6 is a schematic structural diagram of an embodiment of a base station according to the present invention;

 7 is a schematic structural diagram of another embodiment of a base station according to the present invention;

 8 is a schematic structural diagram of an embodiment of a user equipment according to the present invention;

 FIG. 9 is a schematic structural diagram of an embodiment of a spectrum configuration system according to the present invention. detailed description

 The technical solutions in the present invention are clearly and completely described in the following with reference to the accompanying drawings in which: FIG. 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.

 FIG. 1 is a flowchart of an embodiment of a spectrum configuration method according to the present invention. As shown in FIG. 1, the embodiment includes:

 Step 101: The base station sends an indication message to the user equipment, and implicitly or explicitly notifies the user equipment of a preset handover time point, where the indication message includes the updated carrier parameter. After receiving the indication message of the base station, the user equipment can synchronize to the serving cell using the updated carrier parameter after the preset handover time point.

 In this embodiment, the carrier parameter may include a carrier frequency and/or a carrier bandwidth. Frequency division duplex

(Frequency Division Duplex; FDD) In the system, the carrier frequency includes the uplink carrier frequency and the downlink carrier frequency; the carrier bandwidth includes the uplink carrier bandwidth and the downlink carrier bandwidth. In the Time Division Duplex (TDD) system, there is only one carrier frequency and one carrier bandwidth, and the uplink and downlink data transmissions multiplex the same carrier frequency and carrier band in a time division manner. width.

 Step 102: The base station performs handover at a preset switching time point, so that the serving cell of the user equipment uses the updated carrier parameter.

 In this embodiment, the handover time point is pre-configured, and the base station performs handover at a preset handover time point, so that the serving cell of the user equipment uses the updated carrier parameter, and specifically, the center frequency of the serving cell of the user equipment is switched. Go to the updated carrier frequency and use the updated carrier bandwidth. The user equipment receiving the indication message of the base station is also synchronized to the serving cell using the updated carrier parameter after the preset handover time point, so that the user equipment can perform data interaction with the base station in the serving cell using the updated carrier parameter. .

 Specifically, when the communication system is an FDD system, after the handover is completed, the base station sends downlink data to the user equipment on the downlink carrier whose center frequency is the updated downlink carrier frequency and the bandwidth is the updated downlink carrier bandwidth, where the user equipment is The downlink carrier receives the downlink data sent by the base station; the user equipment sends the uplink data to the base station on the uplink carrier whose center frequency is the updated uplink carrier frequency and the bandwidth is the updated uplink carrier bandwidth, and the base station receives the uplink data on the uplink carrier. Uplink data sent by the user equipment.

 When the communication system is a TDD system, after the handover is completed, the base station transmits downlink data to the user equipment on the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth, and the user equipment receives the base station transmission on the carrier. Similarly, the user equipment sends uplink data to the base station on the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth, and the base station receives the uplink data sent by the user equipment on the carrier. The uplink and downlink data transmissions are time-divisionally multiplexed with the same carrier frequency and carrier bandwidth.

In the foregoing embodiment, the base station sends the updated carrier parameter to the user equipment by using the indication message before the preset handover time point, and then the base station performs handover at the preset handover time point, so that the serving cell of the user equipment is used after the update. After receiving the indication message, the user equipment can synchronize to the serving cell using the updated carrier parameter after the preset switching time point; thereby avoiding the user equipment falling off, or finding the serving cell, improving service quality. 2 is a flowchart of another embodiment of a spectrum configuration method according to the present invention. This embodiment is described by taking an indication message as a system message as an example. This embodiment is applicable to user equipments in an idle state and a connected state. As shown in FIG. 2, this embodiment includes:

 Step 201: In an MP, paging the user equipment, instructing the user equipment to receive the system message. The modification period in which the paging user equipment is located is before the preset handover time point, and the end time point of the modification period in which the paging user equipment is located is separated from the preset handover time point by at least one modification period.

 In this embodiment, the base station sends the updated carrier parameter to the user equipment by using the system message, and needs to page the user equipment in an MP before the preset handover time point, and instruct the user equipment to receive the system message, where the paging user equipment is located. The end time point of the MP is separated from the preset switching time point by at least one MP.

 Step 202: Send a system message to the user equipment in a modification period between the end time point of the modification period in which the paging user equipment is located and the preset switching time point. The system message includes updated carrier parameters, which may include carrier frequency and/or carrier bandwidth.

 In the TDD system, there is only one carrier frequency and one carrier bandwidth, and the uplink and downlink data transmissions multiplex the same carrier frequency and carrier bandwidth in a time division manner, wherein the carrier frequency and the carrier bandwidth can be carried in the main information block of the system message (Master Information In the FDD system, the carrier frequency includes the uplink carrier frequency and the downlink carrier frequency; the carrier bandwidth includes the uplink carrier bandwidth and the downlink carrier bandwidth; wherein, the downlink carrier frequency can be carried in the MIB of the system message. The downlink carrier bandwidth is also carried in the MIB; the uplink carrier frequency and the uplink carrier bandwidth are carried in System Information Block 2 (hereinafter referred to as SIB2).

In this embodiment, the base station and the user equipment may pre-approve the relative location of the MP where the user equipment is located, the MP of the sending system message, and the preset switching time point, for example: after the end of the MP where the paging user equipment is located In the first MP, the system message is sent, and the preset switching time point may be located at the end time point of the MP where the sending system message is located; that is, the end time point of the MP where the paging user equipment is located is separated from the preset switching time point. MP, the MP sends a system message between the end time point of the MP where the user equipment is located and the preset switching time point, as shown in FIG. 3, FIG. It is a schematic diagram of an embodiment of the switching time point of the cycle and preset of the present invention. The present embodiment is not limited to this, and the base station may also send a system message in the first to nth MPs after the end of the MP where the paging user equipment is located, where n is an integer greater than 1: the preset switching time point is The end time point of the nth MP of the system message is transmitted; however, the present embodiment is described by taking the case shown in FIG. 3 as an example.

 Step 203: Perform handover at a preset switching time point, so that the serving cell of the user equipment uses the updated carrier parameter.

 In this embodiment, the base station and the user equipment pre-approve the relative location of the MP where the paging user equipment is located, the MP of the sending system message, and the preset switching time point, so after the user equipment receives the paging, the user equipment can Receiving the system message in the pre-agreed MP, and knowing the updated carrier parameter, because the relative position of the switching point and the MP of the sending system message is agreed in advance, the user equipment can also determine the switching time point by the receiving time of the system message. The base station notifies the user equipment of the handover time point by implicitly transmitting the system message, so the user equipment can synchronize to the serving cell using the updated carrier parameter at the first MP after the preset handover time point.

 In the FDD system, after the base station performs the handover at the preset switching time point, the base station sends the downlink data to the user equipment on the downlink carrier whose center frequency is the updated downlink carrier frequency and the bandwidth is the updated downlink carrier bandwidth. The device receives the downlink data sent by the base station on the downlink carrier; the user equipment sends the uplink data to the base station on the uplink carrier whose center frequency is the updated uplink carrier frequency and the bandwidth is the updated uplink carrier bandwidth, where the base station is in the uplink carrier. The uplink data sent by the user equipment is received.

 In the TDD system, after the base station performs the handover at the preset switching time point, the base station sends downlink data to the user equipment on the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth, where the user equipment is located. The downlink data received by the base station is received on the carrier. Similarly, the user equipment sends uplink data to the base station on the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth, and the base station receives the user equipment and sends the uplink information on the carrier. Upstream data. The uplink and downlink data transmissions are multiplexed in the same carrier frequency and carrier bandwidth in a time division manner.

In the above embodiment, the base station passes through at least one MP before the preset switching time point. The system message sends the updated carrier parameter to the user equipment, and then the base station performs handover at the preset switching time point, so that the serving cell of the user equipment uses the updated carrier parameter; after receiving the system message, the user equipment may be preset. The switching time point is synchronized to the serving cell using the updated carrier parameter; thereby avoiding the user equipment dropping, or finding the serving cell, and improving the quality of service.

 4 is a flowchart of still another embodiment of a spectrum configuration method according to the present invention. This embodiment uses an indication message as reconfiguration signaling as an example, and is applicable to a user equipment in a connected state. As shown in FIG. 4, this embodiment includes:

 Step 401: Send reconfiguration signaling to the user equipment, where the reconfiguration signaling includes a preset handover time point and an updated carrier parameter. The carrier parameters may include: carrier frequency and/or carrier bandwidth. The preset switching time point is a new cell in the reconfiguration signaling. In the FDD system, the carrier frequency includes the uplink carrier frequency and the downlink carrier frequency; the carrier bandwidth includes the uplink carrier bandwidth and the downlink carrier bandwidth; in the TDD system, there is only one carrier frequency and one carrier bandwidth, and the uplink and downlink data transmission adopts a time division manner. Use the same carrier frequency and carrier bandwidth.

 Specifically, before performing the handover, the base station starts a radio resource control (Radio Resource Control; hereinafter referred to as RRC) connection reconfiguration process, and sends the preset switching time point and the updated carrier parameter to the user equipment by using reconfiguration signaling. After receiving the reconfiguration signaling sent by the base station, the user equipment can synchronize to the serving cell using the updated carrier parameter after the preset handover time point.

 In order to ensure the timeliness of the switching of the center frequency and the bandwidth, and to reduce the signaling load, the base station can use the Dedicated Control Channel (DCCH) or the broadcast channel to the base station before the preset switching time point. The connected state user equipment group of the service sends the above reconfiguration signaling. Specifically, when the reconfiguration signaling is sent to the connected mode user equipment group that is served by the broadcast channel, the reconfiguration signaling may be carried in the system message to the connected state user equipment served by the base station.

 Step 402: Perform handover at a preset switching time point, so that the serving cell of the user equipment uses the updated carrier parameter.

After transmitting reconfiguration signaling to the connected state user equipment served by the base station, the base station performs handover at a preset switching time point. After the handover is completed, in the FDD system, the base station sends downlink data to the user equipment on the downlink carrier whose center frequency is the updated downlink carrier frequency and the bandwidth is the updated downlink carrier bandwidth, and the user equipment receives the base station on the downlink carrier. The downlink data is sent by the user equipment to the base station on the uplink carrier whose uplink frequency is the updated uplink carrier frequency and the bandwidth is the updated uplink carrier bandwidth, and the base station receives the uplink data sent by the user equipment on the uplink carrier. .

 In the TDD system, after the base station performs the handover at the preset switching time point, the base station sends downlink data to the user equipment on the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth, where the user equipment is located. The downlink data received by the base station is received on the carrier. Similarly, the user equipment sends uplink data to the base station on the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth, and the base station receives the user equipment and sends the uplink information on the carrier. Upstream data. Uplink and downlink data transmissions multiplex the same carrier frequency and carrier bandwidth in a time division manner.

 In the foregoing embodiment, the eNB initiates an RRC connection reconfiguration process, and sends a preset handover time point and an updated carrier parameter to the user equipment by using reconfiguration signaling, and then performs handover at a preset handover time point to enable the user equipment. The serving cell uses the updated carrier parameter; after receiving the reconfiguration signaling sent by the base station, the user equipment can synchronize to the serving cell using the updated carrier parameter after the preset switching time point; thereby avoiding the user equipment falling off , or can not find the service area, improve the quality of service.

 In order to improve spectrum utilization, operators hope that third-generation mobile communications (Third Generation; 3G) / second-generation mobile communications (Second Generation; 2G) can coexist with LTE in the same frequency band. As the traffic of 3G/2G and LTE dynamically adjusts the spectrum bandwidth used by each other, the following five scenarios are specifically included:

 (a) LTE uses 20MHz;

 (b) LTE uses 15MHz, and a UMTS carrier uses 5MHz;

 (c) LTE uses 10MHz, two UMTS carriers use 10MHz, and each UMTS carrier uses 5MHz;

(d) LTE uses 5MHz, three UMTS carriers use 15MHz, each of which carries UMTS Wave using 5MHz;

 (e) Four UMTS carriers use 20 MHz, of which 5 MHz is used for each UMTS carrier. In the handover of the above five scenarios, there are four types of handover scenarios for the spectrum used by LTE:

 (1) The spectrum used by LTE is switched from 10MHz to 15MHz;

 (2) The spectrum used by LTE is switched from 15MHz to 10MHz;

 (3) The spectrum used by LTE is switched from 5MHz to 15MHz;

 (4) The spectrum used by LTE is switched from 15MHz to 5MHz;

 In the handover scenarios of (1) and (2), the center frequency and the bandwidth are changed after the preset switching time point. For the user equipment in the idle state and the connected state, the base station can adopt the present invention. In the method of the embodiment shown in FIG. 2, the system message is used to send the updated carrier parameters to the user equipment in the idle state and the connected state, where the carrier parameter includes the carrier frequency and the carrier bandwidth. For the TDD system, only one carrier is used. Frequency and one carrier bandwidth, uplink and downlink data transmission uses the same carrier frequency and carrier bandwidth in a time division manner. The carrier frequency and carrier bandwidth can be carried in the MIB of the system message. For the FDD system, the carrier frequency includes the uplink carrier frequency and the downlink. The carrier frequency includes the uplink carrier bandwidth and the downlink carrier bandwidth. The downlink carrier frequency may be carried in the MIB of the system message; the downlink carrier bandwidth is also carried in the MIB; the uplink carrier frequency and the uplink carrier bandwidth are carried in the SIB2.

 In the handover scenarios of (1) and (2), the change of the center frequency and the bandwidth has a limited impact on the user equipment in the idle state. For the user equipment in the connected state, the base station may also use the present invention as shown in FIG. In the method of the embodiment, the preset handover time point and the updated carrier parameter are sent to the connected user equipment by using reconfiguration signaling, and the handover is performed. The above carrier parameters include carrier frequency and carrier bandwidth.

In the (3) and (4) handover scenarios, after the preset switching time point, only the bandwidth changes, and the center frequency does not change, so there is no need to send the updated carrier frequency to the user equipment; For the user equipment in the idle state and the connected state, the base station can use the method in the embodiment shown in FIG. 2 to send the updated carrier bandwidth to the user equipment in the idle state and the connected state through the system message, where the handover is performed; In the FDD system, the carrier bandwidth includes the uplink carrier bandwidth and the downlink carrier bandwidth. The downlink carrier bandwidth can be carried in the MTB of the system message, and the uplink carrier bandwidth can be carried in the SIB2 of the system message. For the TDD system, there is only one carrier bandwidth, and the updated carrier bandwidth can be carried in the MIB of the system message. In addition, for the connected user equipment, the base station may also use the method of the embodiment shown in FIG. 4 to send the preset switching time point and the updated carrier bandwidth to the connected user equipment by using reconfiguration signaling. Switch.

 In addition, for a handover scenario in which the bandwidth does not change after the preset handover time point and the center frequency changes, the base station does not need to send the updated carrier bandwidth to the user equipment because the bandwidth does not change. For the user equipment in the idle state and the connected state, the base station can use the method of the embodiment shown in FIG. 2 to transmit the updated carrier frequency to the user equipment in the idle state and the connected state by using the system message; For the FDD system, the carrier frequency includes the uplink carrier frequency and the downlink carrier frequency, and the downlink carrier frequency can be carried in the MIB of the system message, and the uplink carrier frequency is carried in the SIB2 of the system message; for the TDD system, only one carrier frequency can be updated. The subsequent carrier frequency is carried in the MIB of the system message. In addition, for the user equipment in the connected state, the base station may also use the method of the embodiment shown in FIG. 4 to send the preset switching time point and the updated carrier frequency to the connected user equipment through reconfiguration signaling. Switch.

 The foregoing uses only the LTE spectrum switching as an example to describe a scenario in which an embodiment of the present invention is used. The embodiment of the present invention can also be applied to a scenario involving frequency switching in a communication system of another system.

 FIG. 5 is a flowchart of still another embodiment of a spectrum configuration method according to the present invention. As shown in FIG. 5, the embodiment includes:

 Step 501: Receive an indication message sent by the base station, and obtain a preset switching time point of the indication message implicit or explicit notification, where the indication message includes the updated carrier parameter.

 In this embodiment, the carrier parameter may include a carrier frequency and/or a carrier bandwidth. In the FDD system, the carrier frequency includes an uplink carrier frequency and a downlink carrier frequency; the carrier bandwidth includes an uplink carrier bandwidth and a downlink carrier bandwidth. In the TDD system, there is only one carrier frequency and one carrier bandwidth, and the uplink and downlink data transmissions multiplex the same carrier frequency and carrier bandwidth in a time division manner.

Specifically, the indication message may be a system message, where the system message includes the updated carrier parameter; The idle state and the connected state user equipment may receive the system sent by the base station in a modification period between the end time point of the modification period in which the paging user equipment is located and the preset switching time point after receiving the paging of the base station. Message.

 The indication message may also be reconfiguration signaling, where the reconfiguration signaling includes a preset handover time point and an updated carrier parameter; the connected state user equipment may receive the base station before the preset handover time point, through the dedicated control channel. Reconfiguration signaling sent by the DCCH or broadcast channel.

 Step 502: Synchronize to the service cell using the updated carrier parameter after the preset switching time point.

 The base station performs handover at the preset switching point, so that the serving cell of the user equipment uses the updated carrier parameter; and the user equipment that receives the indication message is also synchronized to the center frequency as the updated carrier frequency after the preset switching time point, The serving cell whose bandwidth is the updated carrier bandwidth, so that the user equipment can perform data interaction with the base station in the serving cell using the updated carrier parameter.

 Specifically, when the communication system is an FDD system, after the handover is completed, the base station sends downlink data to the user equipment on the downlink carrier whose center frequency is the updated downlink carrier frequency and the bandwidth is the updated downlink carrier bandwidth, where the user equipment is The downlink carrier receives the downlink data sent by the base station; the user equipment sends the uplink data to the base station on the uplink carrier whose center frequency is the updated uplink carrier frequency and the bandwidth is the updated uplink carrier bandwidth, and the base station receives the uplink data on the uplink carrier. Uplink data sent by the user equipment.

 When the communication system is a TDD system, after the handover is completed, the base station transmits downlink data to the user equipment on the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth, and the user equipment receives the base station transmission on the carrier. Similarly, the user equipment sends uplink data to the base station on the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth, and the base station receives the uplink data sent by the user equipment on the carrier. The uplink and downlink data transmissions are time-divisionally multiplexed with the same carrier frequency and carrier bandwidth.

In the above embodiment, the user equipment receives the indication message sent by the base station before the preset handover time point, and learns the preset handover time point and the updated carrier parameter. Base station at preset switching time point Performing handover, so that the serving cell of the user equipment uses the updated carrier parameter; the user equipment receiving the indication message may synchronize to the serving cell using the updated carrier parameter after the preset handover time point; thereby avoiding the user equipment Dropped calls, or can not find the service area, improve the quality of service.

 A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

 FIG. 6 is a schematic structural diagram of an embodiment of a base station according to the present invention. The base station in this embodiment may implement the process of the embodiment shown in FIG. 1 of the present invention. As shown in FIG. 6, the base station may include: a sending module 61 and a switching module. 62.

 The sending module 61 may send an indication message to the user equipment, and notify the user equipment of the preset switching time point implicitly or explicitly. The indication message includes the updated carrier parameter, and the carrier parameter may include a carrier frequency and/or a carrier bandwidth. In the FDD system, the carrier frequency includes the uplink carrier frequency and the downlink carrier frequency; the carrier bandwidth includes the uplink carrier bandwidth and the downlink carrier bandwidth; in the TDD system, there is only one carrier frequency and one carrier bandwidth, and the uplink and downlink data transmission adopts time division. The way to reuse the same carrier frequency and carrier bandwidth.

 The handover module 62 can perform handover at a preset handover time point, so that the serving cell of the user equipment uses the updated carrier parameters.

 In this embodiment, the handover time point is pre-configured, and the handover module 62 performs handover at a preset handover time point, so that the serving cell of the user equipment uses the updated carrier parameter. The user equipment receiving the indication message of the base station is also synchronized to the serving cell using the updated carrier parameter after the preset handover time point, so that the user equipment can perform data interaction with the base station in the serving cell using the updated carrier parameter. .

Specifically, when the communication system is an FDD system, after the handover module 62 completes the handover, the base station sends downlink data to the user equipment on the downlink carrier whose center frequency is the updated downlink carrier frequency and the bandwidth is the updated downlink carrier bandwidth. The user equipment receives the downlink sent by the base station on the downlink carrier. The user equipment sends uplink data to the base station on the uplink carrier whose center frequency is the updated uplink carrier frequency and the bandwidth is the updated uplink carrier bandwidth, and the base station receives the uplink data sent by the user equipment on the uplink carrier.

 When the communication system is a TDD system, after the handover module 62 completes the handover, the base station transmits downlink data to the user equipment on the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth, and the user equipment is on the carrier. Receiving the downlink data sent by the base station on the uplink; Similarly, the user equipment sends the uplink data to the base station on the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth, and the base station receives the uplink sent by the user equipment on the carrier. data. Uplink and downlink data transmission The same carrier frequency and carrier bandwidth are multiplexed in a time division manner.

 In the foregoing embodiment, the sending module 61 sends the updated carrier parameter to the user equipment by using the indication message before the preset switching time point, and then the switching module 62 performs switching at the preset switching time point to enable the service of the user equipment. The cell uses the updated carrier parameter; after receiving the indication message, the user equipment can synchronize to the serving cell using the updated carrier parameter after the preset switching time point; thereby avoiding the user equipment falling off, or finding the service The community has improved the quality of service.

 FIG. 7 is a schematic structural diagram of another embodiment of a base station according to the present invention. The base station in this embodiment may implement the process of the embodiment shown in FIG. 2 or FIG. 4 of the present invention. As shown in FIG. 7, the base station may include: a sending module. 71. Switching module 72 and paging module 73.

 The sending module 71 may send an indication message to the user equipment, and notify the user equipment of the preset switching time point implicitly or explicitly. The indication message includes the updated carrier parameter, and the carrier parameter may include a carrier frequency and/or a carrier bandwidth. In the FDD system, the carrier frequency includes the uplink carrier frequency and the downlink carrier frequency; the carrier bandwidth includes the uplink carrier bandwidth and the downlink carrier bandwidth; in the TDD system, there is only one carrier frequency and one carrier bandwidth, and the uplink and downlink data transmission adopts time division. The way to reuse the same carrier frequency and carrier bandwidth.

 The handover module 72 can perform handover at a preset handover time point, so that the serving cell of the user equipment uses the updated carrier parameters.

In this embodiment, the switching time point is pre-configured, and the switching module 72 is at the preset switching time point. The handover is performed such that the serving cell of the user equipment uses the updated carrier parameters. The user equipment receiving the indication message of the base station is also synchronized to the serving cell using the updated carrier parameter after the preset handover time point, so that the user equipment can perform data interaction with the base station in the serving cell using the updated carrier parameter. .

 Specifically, when the communication system is an FDD system, after the handover module 72 completes the handover, the base station sends the downlink data to the user equipment on the downlink carrier whose center frequency is the updated downlink carrier frequency and the bandwidth is the updated downlink carrier bandwidth. The user equipment receives the downlink data sent by the base station on the downlink carrier; the user equipment sends the uplink data to the base station on the uplink carrier whose center frequency is the updated uplink carrier frequency and the bandwidth is the updated uplink carrier bandwidth, where the base station is The uplink data sent by the user equipment is received on the uplink carrier.

 When the communication system is a TDD system, after the handover module 72 completes the handover, the base station transmits downlink data to the user equipment on the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth, and the user equipment is on the carrier. Receiving the downlink data sent by the base station on the uplink; Similarly, the user equipment sends the uplink data to the base station on the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth, and the base station receives the uplink sent by the user equipment on the carrier. data. Uplink and downlink data transmission The same carrier frequency and carrier bandwidth are multiplexed in a time division manner.

 In an embodiment of the present invention, the paging module 73 may, when the indication message is specifically a system message, page the user equipment in a modification period, and instruct the user equipment to receive the system message; the modification period in which the paging user equipment is located Before the preset switching time point, the end time point of the modification period in which the paging user equipment is located is separated from the preset switching time point by at least one modification period. At this time, the sending module 71 is further configured to send a system message to the user equipment in a modification period between the end time point of the modification period in which the paging module 73 pages the user equipment and the preset switching time point.

In this embodiment, the base station and the user equipment may pre-arrange the paging module 73 to page the MP where the user equipment is located, and the relative position of the MP and the preset switching time point of the sending system 71 sent by the sending module 71. For example, the sending module 71 may be in the The paging module 73 pages the first MP after the end of the MP where the user equipment is located, and sends a system message, and the preset switching time point is sent by the sending module 71 to send the system message. The ending time point of an MP; that is, the end time point of the paging module 73 for paging the MP where the user equipment is located is separated from the preset switching time point by an MP, and the sending module 71 pages the MP of the user equipment at the paging module 73. This MP transmission system message between the end time point and the preset switching time point is as shown in FIG. The embodiment is not limited to this, and the sending module 71 may also send a system message in the first to nth MPs after the end of the MP where the paging user equipment is located, where n is an integer greater than 1; preset switching time The point is at the end time point of the nth MP of the system message; however, the present embodiment is described by taking the case shown in FIG. 3 as an example.

 In another embodiment of the present invention, before performing the handover, the base station starts a radio resource control RRC connection reconfiguration process, and sends the preset handover time point and the updated carrier parameter to the user equipment by using reconfiguration signaling. At this time, in order to ensure the timeliness of the center frequency and bandwidth switching, and reduce the signaling load, the sending module 71 may reconfigure the user equipment group served by the base station through the dedicated control channel or the broadcast channel before the preset switching time point. Signaling, the reconfiguration signaling includes a preset switching time point and an updated carrier parameter. Specifically, the sending module 71 may send the reconfiguration signaling to the connected state user equipment that is sent to the base station in the system message when the reconfiguration signaling is sent to the connected user equipment group served by the base station through the broadcast channel.

 In the foregoing embodiment, the sending module 71 sends the updated carrier parameter to the user equipment by using the indication message before the preset switching time point, and then the switching module 72 performs switching at the preset switching time point to enable the service of the user equipment. The cell uses the updated carrier parameter; after receiving the indication message, the user equipment can synchronize to the serving cell using the updated carrier parameter after the preset switching time point; thereby avoiding the user equipment falling off, or finding the service The community has improved the quality of service.

 FIG. 8 is a schematic structural diagram of an embodiment of a user equipment according to the present invention. The user equipment in this embodiment may implement the process of the embodiment shown in FIG. 5 of the present invention. As shown in FIG. 8, the user equipment may include: a receiving module 81. And synchronization module 82.

 The receiving module 81 may receive an indication message sent by the base station, and obtain a preset switching time point of the implicit or explicit notification of the indication message, where the indication message includes the updated carrier parameter.

Specifically, the indication message may be a system message, where the system message includes the updated carrier parameter; The receiving module 81 of the idle state and the connected state user equipment may receive, after receiving the paging of the base station, a modification period between the end time point of the modification period in which the paging user equipment is located and the preset switching time point. , the system message sent;

 The indication message may also be reconfiguration signaling, where the reconfiguration signaling includes a preset handover time point and an updated carrier parameter; the receiving module 81 of the connected state user equipment may receive the base station before the preset handover time point, Reconfiguration signaling transmitted over a dedicated control channel DCCH or broadcast channel.

 The synchronization module 82 may synchronize to the serving cell using the updated carrier parameter after the preset switching time point obtained by the receiving module 81, and the carrier parameter may include a carrier frequency and/or a carrier bandwidth; thus, the user equipment may use the update after using The service parameter of the carrier parameter, the area and the base station perform data interaction.

 In the foregoing embodiment, the receiving module 81 receives the indication message sent by the base station before the preset switching time point, and learns the preset switching time point and the updated carrier parameter. The base station performs handover at a preset switching time point, so that the serving cell of the user equipment uses the updated carrier parameter; and the synchronization module 82 of the user equipment that receives the indication message can synchronize to use the update after the preset switching time point. The serving cell of the carrier parameter; thereby avoiding the dropped calls of the user equipment, or finding the serving cell, and improving the quality of service.

 FIG. 9 is a schematic structural diagram of an embodiment of a spectrum configuration system according to the present invention. As shown in FIG. 9, the spectrum configuration system includes a base station 91 and a user equipment 92.

 Specifically, the base station 91 may send an indication message to the user equipment 92 to implicitly or explicitly notify the user equipment 92 of a preset handover time point, where the indication message includes the updated carrier parameter; and performs handover at a preset handover time point. The serving cell of the user equipment 92 is used to use the updated carrier parameters. Specifically, the base station 91 can be implemented by the base station of the embodiment shown in FIG. 6 or FIG. 7 of the present invention.

 The user equipment 92 may receive the indication message sent by the base station 91, obtain a preset switching time point of the indication message implicit or explicit notification, and synchronize to the serving cell using the updated carrier parameter after the preset switching time point. . Specifically, the user equipment 92 can be implemented by using the user equipment of the embodiment shown in FIG. 8 of the present invention.

In this embodiment, the carrier parameter may include a carrier frequency and/or a carrier bandwidth. In the FDD system, The carrier frequency includes an uplink carrier frequency and a downlink carrier frequency, and the carrier bandwidth includes an uplink carrier bandwidth and a downlink carrier bandwidth. In the TDD system, there is only one carrier frequency and one carrier bandwidth, and the uplink and downlink data transmissions multiplex the same carrier in a time division manner. Frequency and carrier bandwidth.

 In an embodiment of the present invention, the base station 91 and the user equipment 92 may pre-approve the relative location of the MP where the user equipment is located, the MP of the sending system message, and the preset switching time point, for example: In the first MP after the MP is located, the system message is sent, and the preset switching time point is at the end time point of the first MP of the system message; that is, the end time of the MP where the paging user device 92 is located. The MP sends a system message between the end time point of the MP where the user equipment 92 is located and the preset switching time point, as shown in FIG. 3, with an MP separated from the preset switching time point. The present embodiment is not limited to this, and the base station 91 may also send a system message in the first to nth MPs after the end of the MP where the paging user equipment 92 is located, where n is an integer greater than 1; preset switching time The point is at the end time point of the nth MP of the system message; however, the present embodiment is described by taking the case shown in FIG. 3 as an example. At this time, after receiving the paging, the user equipment 92 can receive the system message in the pre-agreed MP, learn the updated carrier parameters, and synchronize the first MP after the preset switching time point to use the update. The serving cell of the carrier parameter.

 In another embodiment of the present invention, before performing the handover, the base station 91 initiates a radio resource control RRC connection reconfiguration procedure, and transmits the preset handover time point and the updated carrier parameters to the user equipment 92 through the reconfiguration signaling. At this time, in order to ensure the timeliness of the center frequency and bandwidth switching, and to reduce the signaling load, the base station 91 can send a heavy weight to the user equipment 92 served by the base station 91 through the dedicated control channel or the broadcast channel before the preset switching time point. The signaling is configured, and the reconfiguration signaling includes a preset switching time point and an updated carrier parameter. Specifically, when the base station 91 sends a reconfiguration signaling to the connected state user equipment 92 that is served by the base station 91 through the broadcast channel, the reconfiguration signaling may be carried in the system message to the connected state user equipment 92 served by the base station 91. .

In the FDD system, after the handover is completed, the base station 91 transmits downlink data to the user equipment 92 on the downlink carrier whose center frequency is the updated downlink carrier frequency and the bandwidth is the updated downlink carrier bandwidth, and the user equipment 92 is in the downlink. Receiving downlink data sent by the base station 91 on the carrier; the user equipment 92 The uplink data is transmitted to the base station 91 on the uplink carrier whose center frequency is the updated uplink carrier frequency and the bandwidth is the updated uplink carrier bandwidth, and the base station 91 receives the uplink data sent by the user equipment 92 on the uplink carrier.

 In the TDD system, after the handover is completed, after the base station 91 performs handover at the preset handover time point, the base station 91 sends the user equipment 92 to the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth. The downlink data is sent, and the user equipment 92 receives the downlink data sent by the base station 91 on the carrier. Similarly, the user equipment 92 sends the uplink to the base station 91 on the carrier whose center frequency is the updated carrier frequency and the bandwidth is the updated carrier bandwidth. Data, the base station 91 receives the uplink data sent by the user equipment 92 on the carrier. The uplink and downlink data transmissions multiplex the same carrier frequency and carrier bandwidth in a time division manner.

 In the foregoing embodiment, the base station 91 sends the updated carrier parameter to the user equipment 92 by using the indication message before the preset handover time point, and then performs handover at the preset handover time point, so that the serving cell of the user equipment 92 is used. The updated carrier parameter; after receiving the indication message, the user equipment 92 may synchronize to the serving cell using the updated carrier parameter after the preset switching time point; thereby avoiding the user equipment 92 falling off, or finding the service The community has improved the quality of service.

 Those skilled in the art will appreciate that the drawings are only a schematic representation of a preferred embodiment, and that the modules or processes in the drawings are not necessarily required to practice the invention.

 It will be understood by those skilled in the art that the modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment as described in the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment. The modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

 It should be noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and are not to be construed as limiting the embodiments of the present invention. The technical solutions of the present invention may be modified or equivalently substituted, and the modified technical solutions may not deviate from the spirit and scope of the technical solutions of the present invention.

Claims

Claim

 A spectrum configuration method, comprising:

 Sending an indication message to the user equipment, and implicitly or explicitly notifying the user equipment of a preset handover time point, where the indication message includes the updated carrier parameter, so that the user equipment is at the preset switching time point. And then synchronized to the serving cell using the updated carrier parameter;

 Switching is performed at the preset switching time point, so that the serving cell of the user equipment uses the updated carrier parameter.

 The method according to claim 1, wherein the indication message is specifically a system message, and before the sending the indication message to the user equipment, the method further includes:

 In a modification period, the paging user equipment is instructed to receive the system message, and the modification period in which the paging user equipment is located is before a preset handover time point, and the modification period of the paging user equipment is The end time point is separated from the preset switching time point by at least one modification period.

 The method according to claim 2, wherein the sending the indication message to the user equipment comprises:

 And sending the system message to the user equipment in a tampering period between an end time point of the modification period in which the paging user equipment is located and the preset switching time point.

 The method according to claim 3, wherein the carrier parameter comprises a carrier frequency and a carrier bandwidth, and when the communication system is a time division multiplexing system, the carrier frequency and the carrier bandwidth are carried in the system. In the main information block of the message; when the communication system is a frequency division multiplexing system, the carrier frequency includes an uplink carrier frequency and a downlink carrier frequency, and the carrier bandwidth includes an uplink carrier bandwidth and a downlink carrier bandwidth, and the downlink carrier frequency and The downlink carrier bandwidth is carried in a main information block of the system message.

 The method according to claim 1, wherein the indication message is specifically reconfiguration signaling, and the reconfiguration signaling further includes the preset switching time point.

The method according to claim 5, wherein the sending the indication to the user equipment Information includes:

 The reconfiguration signaling is sent to the user equipment group served by the base station through a dedicated control channel or a broadcast channel before the preset switching time point.

 The method according to any one of claims 1-3 and 4-6, wherein the carrier parameter comprises a carrier frequency and/or a carrier bandwidth.

 8. A spectrum configuration method, comprising:

 Receiving an indication message sent by the base station, and obtaining a preset switching time point of the indication message implicit or explicit notification, where the indication message includes the updated carrier parameter;

 A service cell using the updated carrier parameter is synchronized to the preset switching time point.

 The method according to claim 8, wherein the indication message is specifically a system message, and the indication message sent by the receiving base station includes:

 And receiving, by the base station, the system message sent in a modification period between an end time point of a modification period in which the paging user equipment is located and the preset switching time point.

 The method according to claim 8, wherein the indication message is specifically reconfiguration signaling, and the indication message sent by the receiving base station includes:

 Receiving reconfiguration signaling sent by the base station through a dedicated control channel or a broadcast channel before the preset handover time point.

 The method according to any one of claims 8 to 10, wherein the carrier parameters comprise a carrier frequency and/or a carrier bandwidth.

 12. A base station, comprising:

 a sending module, configured to send an indication message to the user equipment, to implicitly or explicitly notify the user equipment of a preset switching time point, where the indication message includes the updated carrier parameter;

 And a switching module, configured to perform switching at the preset switching time point, so that the serving cell of the user equipment uses the updated carrier parameter.

The base station according to claim 12, further comprising: a paging module, configured to: when the indication message is specifically a system message, in a modification period, paging the user equipment, instructing the user equipment to receive a system message; the modification period in which the paging user equipment is located is preset Before the switching time point, the end time point of the modification period in which the paging user equipment is located is separated from the preset switching time point by at least one modification period.

 The base station according to claim 13, wherein the sending module is further configured to: between an end time point of a modification period in which the paging module is paging the user equipment, and the preset switching time point. In a modification period, the system message is sent to the user equipment.

 The base station according to claim 12, wherein the sending module is further configured to: when the indication message is reconfiguration signaling, before the preset switching time point, by using a dedicated control channel or broadcast And transmitting, by the channel, the reconfiguration signaling to the user equipment group served by the base station, where the reconfiguration signaling further includes the preset handover time point.

 16. A user equipment, comprising:

 a receiving module, configured to receive an indication message sent by the base station, to obtain a preset switching time point of the indication message implicit or explicit notification, where the indication message includes the updated carrier parameter;

 And a synchronization module, configured to synchronize to a serving cell that uses the updated carrier parameter after a preset switching time point obtained by the receiving module.

 17. A frequency talk configuration system, comprising: a base station and a user equipment,

 The base station is configured to send an indication message to the user equipment, and implicitly or explicitly notify the user equipment of a preset handover time point, where the indication message includes an updated carrier parameter, and in the preset Switching to a time point for switching, so that the service and the area of the user equipment use the updated carrier parameter;

 The user equipment is configured to receive an indication message sent by the base station, obtain a preset switching time point of the implicit or explicit notification of the indication message, and synchronize to the use location after the preset switching time point. The serving cell of the updated carrier parameter.