JP7078651B2 - Carrier hopping method and terminal - Google Patents

Description

Examples of the present invention relate to the communication field, specifically, a carrier wave hopping method and a terminal.

Currently, it is conceivable to extend the frequency used in wireless cellular systems by using the Unlicensed frequency band, for example 2.4 GHz, 5.8 GHz, the main means of which is License Assisted Access (LAA). ) And long-term evolution (LTE) / wireless fidelity (WiFi) aggregation technology. The main features of these two types of aggregation technology are (1) the aggregated resources include the unlicensed frequency band, and the unlicensed frequency band is used only as the auxiliary frequency band of the licensed frequency band, and (2). The use of an unlicensed frequency band involves not only scheduling the base station, but also limiting the load on that frequency band, i.e., having to go through a competitive mechanism to be usable.

At this stage, the unlicensed frequency band is used only as a supplement to the licensed frequency band. For example, in LAA technology, the unlicensed frequency band can employ the LTE operating mode, but can only be used as a subcarrier of the licensed frequency band. In the future, the unlicensed frequency band may support independent operating modes based on conventional LAA technology with carrier aggregation, i.e., the terminal independently resides, accesses, and has the carrier in the carrier of the unlicensed frequency band. Data can be transmitted or received via. In order to support the independent operating function of the carrier wave of the unlicensed frequency band, the simplest method is to introduce the broadcast mechanism, paging mechanism, uplink and downlink access and transmission mechanism applied to the licensed frequency band in the conventional LTE system. All will be introduced in the unlicensed frequency band. However, since the unlicensed frequency band is the public frequency band, not only can LTE systems operate on it, but other systems such as Wi-Fi can operate on it.

Therefore, in a conventional LAA system using an unlicensed frequency band, a listen before speaking (LBT) mechanism is introduced in order to satisfy the control news in which multiple systems share frequency resources, that is, the terminal is Before using the unlicensed frequency band, it is necessary to measure the quality and interference status of the channel, and it can be used after monitoring whether the channel is occupied.

In addition to introducing the LBT mechanism, the conventional LAA system generally uses the conventional mechanism and process of LTE, that is, the fixed carrier wave and fixed bandwidth of the unlicensed frequency band are determined, and the operating frequency and bandwidth of the system are used. The terminal transmits and receives system information and radio resource control (RRC: Radio Resource Control) information using the license frequency band as the main carrier wave, accesses the reception bearer, and performs data transmission. The system allocates the LAA carrier as a subcarrier to the terminal by RRC signaling carried to the main carrier. Throughout the process, the system bandwidth and the center frequency for system operation remain unchanged.

Systems that operate independently in the unlicensed frequency band can still support modes that operate independently if the traditional fixed system bandwidth and center frequency point scheme is adopted, but when the operating frequency points are interfered with. The required frequency and bandwidth adjustments cannot be made, resulting in a poor user experience.

An embodiment of the present invention provides a carrier hopping method and a terminal, which can realize carrier hopping and improve the user experience.

It is a carrier wave hopping method according to the first aspect, and is
The terminal receives the signaling transmitted from the base station on the first carrier subset, where the terminal currently transmits or resides data on the first carrier subset and the signaling is from the first carrier subset. Used to instruct the terminal to transmit or reside data by hopping to a second carrier subset, both the first carrier subset and the second carrier subset are in a preset carrier set. The first carrier set belongs to which the center frequency point and / or bandwidth of any two of the preset carrier sets is different and the preset carrier set has one set of system information. The carrier subset and the second carrier subset each contain at least one carrier, and the first carrier subset is not exactly the same as the second carrier subset.
The terminal comprises transmitting or resident data on the second carrier subset from the first time point based on the signaling.

In a possible embodiment of the first aspect, the method is
After the first time point, the terminal further comprises acquiring the system information via the second carrier subset.

Here, the signaling of the present invention includes a first configuration information for indicating the second carrier subset.

Preferably, the first configuration information comprises one of a carrier index, a center frequency point index or a bitmap to indicate the carrier of the second carrier subset.

In a possible embodiment of the first aspect, the terminal receiving the signaling transmitted from the base station on the first carrier subset
The terminal comprises receiving the signaling transmitted from the base station in the time unit n on the first carrier subset, where n is the time unit index number.
It is possible that the terminal transmits data on the second carrier subset from the first time point based on the signaling.
The terminal comprises transmitting data from the time unit n + N on the second carrier subset based on the signaling, where N is a positive integer.

Here, N is a constant or
N is confirmed according to the promised rules, or
N is arranged in the base station.

In the present invention, the signaling is the downlink control information DCI in the common search space CSS of the broadcast channel and the physical downlink control channel PDCCH, the DCI in the CSS of the enhanced physical downlink control channel EPDCCH, and the user device UE dedicated search space of the PDCCH. At least one of DCI in USS, DCI in USS of EPDCCH, dedicated physical channel, header of media access control MAC layer, control element CE of said MAC layer, system information of radio resource control RRC layer and dedicated signaling of said RRC layer. It is transported to one.

In a possible embodiment of the first aspect, the method is
It is possible that the terminal transmits data from the time unit n + N on the second carrier subset based on the signaling.
The terminal detects a signal or a physical channel transmitted from the base station in the second carrier wave subset from the time unit n + N, and the base station occupies the carrier wave of the second carrier wave subset for data transmission. Decide if you want to do it, or
When the base station transmits data in P continuous time units, the time unit n and the time unit n + N are time units in the continuous P time units, and the terminal. Detects and / or transmits data from the time unit n + N in the second carrier subset, ending up to the P time units, where P is a positive integer or
When the base station transmits data in P continuous time units, the time unit n and the time unit n + N are time units in the continuous P time units, and the terminal. Detects and / or transmits data from the time unit n + N in the second carrier subset, ending up to P + E time units, where E is a non-negative integer and the value of E is for frequency modulation. Time space required Related to the length of free resources, P is a positive integer or
In the time unit n + N, the terminal receives the second configuration information transmitted from the base station in the second carrier subset, and the second configuration information is continuously transmitted by the base station from the time unit n + N. Used to indicate that the time to be transmitted is T, where T is a positive number and the terminal transmits DCI detection and / or data from the time unit n + N on the second carrier subset. It includes ending up to the time unit T.

In a possible embodiment of the first aspect, if the terminal currently transmits or resides data in the first carrier subset, the terminal receives signaling transmitted from the base station in the first carrier subset. That is
The terminal comprises receiving signaling transmitted from a base station at a second time point in the first carrier subset.
The second time point corresponds to the transmission subframe of the system information and / or the second time point corresponds to the transmission subframe of the paging channel.

In a possible embodiment of the first aspect, the preset carrier set is the preset carrier set S {S ₀ , S ₁ , ..., _SM-1 via broadcast information or higher layer signaling. } Is pre-arranged by the base station, and M is greater than or equal to 2.

Here, each carrier of the preset carrier set S {S ₀ , S ₁ , ..., _SM-1 } arranges at least a center frequency point.

第一の態様による搬送波ホッピング方法は接続状態またはアイドル状態にある端末に応用され、１セットのシステム情報を有する搬送波セットを設定し、接続状態またはアイドル状態にある端末が基地局からの搬送波ホッピングを示すシグナリングを受信した場合、古い搬送波と同じ搬送波セットに属する新しい搬送波でデータを伝送または常駐し、動作周波数ポイントが干渉された時に必要な周波数と帯域幅の調整を行い、即ち搬送波ホッピングを実現し、ユーザ体験を向上させることができる。

The carrier hopping method according to the first aspect is applied to a terminal in a connected or idle state, a carrier set having one set of system information is set, and the terminal in the connected or idle state performs carrier hopping from the base station. When the indicated signaling is received, the data is transmitted or resides on a new carrier that belongs to the same carrier set as the old carrier, and the necessary frequency and bandwidth adjustments are made when the operating frequency points are interfered with, ie carrier hopping is achieved. , The user experience can be improved.

The terminal according to the second aspect includes a receiving module and a processing module, and is used to execute the corresponding implementation form of the first aspect.

It is a schematic diagram of the LTE carrier wave aggregation technique. It is a schematic flowchart of the carrier wave hopping method in one Example of this invention. It is a schematic diagram of the carrier wave hopping in the Example of this invention. It is a schematic diagram of the carrier wave hopping in the Example of this invention. It is a schematic flowchart of the carrier wave hopping method in another embodiment of this invention. It is a schematic flowchart of the carrier wave hopping method in another embodiment of this invention. It is a schematic block diagram of the terminal in one Example of this invention. It is a schematic block diagram of the terminal in another embodiment of this invention. It is a schematic block diagram of the terminal in another embodiment of this invention. It is a schematic block diagram of the terminal in another embodiment of this invention. It is a schematic block diagram of the base station in one Example of this invention. It is a schematic block diagram of a base station in another embodiment of this invention.

In order to more clearly explain the technical solution of the embodiment of the present invention, the drawings necessary for the description of the embodiment or the prior art will be briefly described below, but the drawings described below are clearly the present invention. There are only a few embodiments of the above, and one of ordinary skill in the art can obtain other drawings based on these drawings without any creative effort.

The technical solutions according to the embodiments of the present invention are clearly and fully described and clearly described by combining the drawings of the embodiments of the present invention with reference to the embodiments of the present invention. Only, not all examples. All other examples obtained by those skilled in the art based on the embodiments of the present invention without the need for creative effort belong to the scope of protection of the present invention.

As used herein, the terms "member", "module", "system" and the like refer to computer-related entities, hardware, firmware, hardware-to-software combinations, software, or running software. For example, the member may be, but is not limited to, a process, processor, object, executable file, thread of execution, program and / or computer running on the processor. As shown in the drawings, the application and the computing device running on the computing device may be components. One or more components can reside in a process and / or execution thread, and the components can be located on one computer or distributed between two or more computers. In addition, these members may be executed on the various computer-readable media described above that store various data structures. A member may be, for example, one or more data groups (eg, data from two members interacting with another member between a local system, a distributed system and / or a network, eg the Internet interacting with another system by a signal). It can communicate by local and / or remote processes based on the signals it has.

It should be understood that the technical solutions in the embodiments of the present invention are various communication systems such as global mobile communication (GSM) systems, code division multiple access (CDMA) systems. , Wideband Code Division Multiple Access (WCDMA) System, General Purpose Packet Radio Service (GPRS: Genera1 Packet Radio Service) System, Long Term Evolution System (LTE) : Frequency Division Duplex (TDD) System, Time Division Duplex (TDD) System, Universal Mobile Communication System (UMTS: Universal Mobile Communication System), Worldwide Interoperability System Micro) It can be applied to an Access) communication system, a future 5G communication system, and the like.

The present invention describes each embodiment in combination with a terminal. The terminal can communicate with one or more core networks via a radio access network (RAN: Radio Access Network), and the terminal can be a user device (UE: User Equipment), an access terminal, a subscriber unit, a subscriber site, It may be a mobile site, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The access terminal is equipped with a cellular telephone, a cordless telephone, a session initiation protocol (SIP) telephone, a wireless local loop (WLL: Wireless Local Loop) site, a personal digital processing (PDA: Persona1 Digita1 Assistant), and a wireless communication function. It may be a handheld device, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a future 5G network, and the like.

The present invention describes each embodiment in combination with a base station. The base station may be a device for communicating with a terminal, for example, a base station (BTS: Base Transferr Station) in a GSM system or a CDMA, a base station (NB: NodeB) in a WCDMA system, and an evolved base station in an LTE system. (ENB or eNodeB: Evolutional NodeB), or the base station may be a repeater, an access point, an in-vehicle device, a wearable device, a network-side device in a future 5G network, and the like.

Hereinafter, related techniques and concepts according to examples of the present invention will be briefly described.

Carrier aggregation technology:
With the development of communication technology, long-term evolution technology upgrade (LTE-Advanced, LTE-A) technology will evolve from LTE technology. In the LTE-A Release 10 system, CA technology is used to achieve bandwidth expansion, that is, a maximum of five carriers CC1 to CC5 shown in FIG. 1 are aggregated to achieve a maximum transmission bandwidth of 100 MHz. It can be realized. Depending on the capabilities of the terminal and the amount of data it transmits, the base station can set the number of carriers it aggregates and transmits for each terminal, and the aggregated carrier is called a member carrier. May be good.

A plurality of aggregated member carrier waves for one terminal include the following carrier waves. (1) The main carrier (PCell: Primary Cell), which has only one main carrier, the terminal performs the initial connection establishment process or the start connection reestablishment process on the main carrier, and the terminal is the main carrier and the PDCCH. The common search space is received, and the terminal transmits the PUCCH only on the main carrier wave. (2) A subcarrier (SCell: Secondary Cell) in which all member carrier waves other than the main carrier are subcarriers, the terminal receives DCI and PDSCH on the subcarrier, and transmits PUSCH on the subcarrier. Can be done.

The method in the embodiment of the present invention, the terminal and the base station may be applied to a scene in which the licensed carrier wave is not used and the unlicensed carrier wave is used independently (this scene will be described below as an example). It may be applied to the carrier wave aggregation scene of the present invention, and the embodiment of the present invention is not limited to this.

In an embodiment of the invention, the system may preset one carrier set S depending on the carrier and bandwidth conditions of the frequency bands supported by it. The preset carrier set S can form a virtual cell, and the preset carrier set S includes a carrier {... S _i , ... S _j , ...}. The center frequency points and / or bandwidths of any two carriers S _i and S _j (i ≠ j) of the preset carrier set S are different.

Only one set of system information is transmitted to different carriers in the virtual cell, that is, all carriers in the preset carrier set share one set of system information. The terminal can acquire network information based on the system information, select a cell, and accelerate to the network. The system information includes a master information block (MIB), and the MIB includes configuration information such as system bandwidth information and a physical hybrid automatic repeat indicator channel (PHICH). The system information further includes a system information block type 1 (SIBI: System Information Block Type 1), and the SIB 1 includes a cell identifier, cell prohibition information, cell reception level information, and the like. The system information further includes a system information block type 2 (SIBI: System Information Block Type 2), which is mainly used to define the parameters of each radio channel. The system information may further include some other information, and the embodiments of the present invention are not limited thereto.

The system information may be transmitted via a plurality of carrier waves of the preset carrier wave set S, or may be transmitted by selecting a carrier wave having the preset carrier wave set S. System information can be transmitted in the form of broadcast signaling, dedicated signaling or broadcast signaling + dedicated signaling, and the embodiments of the present invention are not limited thereto.

In one embodiment of the invention, the terminal is in a connected state. The connection state means that the terminal maintains the connection on the carrier wave. Maintaining a connection means that the terminal and the base station transmit data, or maintain only a connection with the base station without transmitting data. In an embodiment of the invention, the terminal maintains a connection on the carrier of the first carrier subset A, the base station is the carrier of the first carrier subset A by specific signaling, and the service carrier is from the first carrier subset A to the first. Notify the terminal to convert to the second carrier subset B, i.e. instruct the terminal to hopping from the carrier of the first carrier subset A to the carrier of the second carrier subset B to maintain the connection. Here, A ∈ S, B ∈ S, A ≠ B, that is, the first carrier subset A and the second carrier subset B all belong to the preset carrier S, and the first carrier subset A and the first carrier subset A. Each of the two carrier subsets B contains at least one carrier, and the carrier of the first carrier subset A is not exactly the same as the carrier of the second carrier subset B. In an embodiment of the invention, the carrier of the first carrier subset A is not exactly the same as the carrier of the second carrier subset B, that the carrier of the first carrier subset A is at least one of the second carrier subset B. It means that it is different from the carrier wave.

Based on the above signaling, the terminal maintains a connection on the carrier wave of the second carrier wave subset B from the _first time point T1. At this time, all the system information on the carrier wave of the second carrier wave subset B to which the terminal is connected is maintained so as to match the system information on the carrier wave of the first carrier wave subset A. And preferably, after the _first time point T1, the terminal acquires system information via the carrier of the second carrier subset B.

FIG. 2 is a schematic flowchart of a carrier hopping method 200 according to an embodiment of the present invention from a terminal in a connected state, which method 200 includes S210 and S220.

In S210, the terminal receives the signaling transmitted from the base station on the carrier of the first carrier subset, where the terminal currently maintains a connection on the carrier of the first carrier subset, and the signaling is the first. Used to instruct the terminal to maintain a connection by hopping from the carrier of one carrier subset to the carrier of the second carrier subset, both the first carrier subset and the second carrier subset. All carriers in the preset carrier set belong to a preset carrier set, have different center frequency points and / or bandwidths of any two of the preset carrier sets, and are one set. The first carrier subset and the second carrier subset each contain at least one carrier, and the carrier of the first carrier subset is exactly the same as the carrier of the second carrier subset. is not.

In S220, the terminal maintains a connection on the carrier of the second carrier subset from the first time point based on the signaling.

In the carrier wave hopping method according to the embodiment of the present invention, when a carrier wave set sharing one set of system information is set and a terminal in a connected state receives a signaling indicating carrier wave hopping from a base station, the same carrier wave as the old carrier wave is used. It is possible to maintain the connection with a new carrier belonging to the set and adjust the required frequency and bandwidth when the operating frequency points are interfered with, i.e. to achieve carrier hopping and improve the user experience.

In an embodiment of the invention, signaling can include first configuration information to indicate the carrier of the second carrier subset B. The configuration of the first configuration information may vary, for example the first configuration information includes a carrier index, a center frequency point index or a bitmap to indicate the carrier of the second carrier subset B. be able to.

In one specific example, the first configuration information can be configured as follows. The base station preliminarily arranges a preset carrier wave set S {S ₀ , S ₁ , ..., _SM-1 } by broadcast information or higher layer signaling. When arranging a preset carrier wave set S, it is necessary to arrange at least the center frequency point of the carrier wave for each carrier wave _Sj . The system bandwidth of the carrier may be arranged or promised in advance.

The first configuration information designates one or more carrier waves of the preset carrier wave set S to form the second carrier wave subset B. The first configuration information can be specified using bitmap. For example, the preset carrier set S contains eight elements {S ₀ , S ₁ , ..., S ₇ }, and the first configuration information is {1, 0, 0, 0, 0, 1, 0. , 0} indicates that the second carrier subset B is {S ₀ , S ₆ }.

In another specific example, the base station pre-populates the center frequency point set F {f ₀ , f ₁ , ..., F _M-1 } with broadcast information or higher layer signals. Each element of set F is different. Signaling consisting of two parts indicates one carrier, i.e. the system bandwidth corresponding to the center frequency point selected from set F. The first configuration information can include one or more of the above combination signalings. Here, the center frequency point can be indicated by bitmap.

個のビットでセットＦの一つの中心周波数ポイントインデックスを示すことができ、Ｍが基地局によって配置され又はプロトコルによって約束されることができる。具体的な実現プロセスは前の例１の実現プロセスと類似するため、ここでは説明を省略する。

One bit can indicate one center frequency point index of set F, where M can be placed by the base station or promised by the protocol. Since the specific realization process is similar to the realization process of the previous example 1, the description thereof is omitted here.

In the embodiment of the present invention, the signaling is the downlink control information (DCI: Downlink Control Information) in the common search space (CSS: Control Access Control) of the broadcast channel and the physical downlink control channel (PDCCH: Physical Downlink Control Channel). DCI in CSS of Enhanced Physical Downlink Control Channel (EPDCCH: Enhanced Physical Downlink Control Channel), DCI in UE-dedicated search space (USS: UE-specific Security Space) of PDCCH, DCI in USS of EPDCCH At least one of the header of the access control (MAC: Media Access Control) layer, the control element (CE: Control Element) of the MAC layer, the system information of the radio resource control (RRC: Radio Resource Control) layer, and the dedicated signaling of the RRC layer. Can be transported to one.

Specifically, the specific solution in which the first configuration information is carried by DCI is as follows. The first configuration information can be carried by DCI in CSS. The DCI is scrambled by a dedicated radio network temporary identifier (RNTI), where the dedicated RNTI is placed by the base station. The bit length of the DCI is the same as that of the conventional DCI format 1A or DCI format 1C. The configuration information may be carried by DCI in the USS. As should be understood, the DCI in the embodiment of the present invention may be further applied to scheduling of a physical downlink shared channel (PDSCH: Physical Downlink Shared Channel) or a physical uplink shared channel (PUSCH: Physical Uplink Shared Channel). , Examples of the present invention are not limited to this.

When the first configuration information is carried by a dedicated physical channel, the terminal determines the physical resources occupied by the dedicated physical channel according to the method promised by the protocol, and the physical resources are determined by the system bandwidth or the base station. It is related to some of the placed parameters, but it is not necessary to notify the specific resource location by display signaling. For example, in LTE Release 8 (Re1-8: Release-8), the physical hybrid automatic retransmission indicator channel (PHICH: Physical Hybrid ARQ Indicator Channel), the physical control format indicator channel (PCFICH: Physical Control Format Indicator Channel) Use the physical resource determination method.

The main advantage of transporting the first configuration information by the dedicated physical channel over the transport of the first configuration information by DCI is the time and data scheduling that the base station completes detection for other carrier LBTs (ie). Due to the different time (completed mapping of each traditional physical channel resource), the first configuration information is carried by a separate dedicated physical channel, which sends the first configuration information as fast as possible to the other physical channels. It is possible to guarantee that the transmission will not be affected.

When the first configuration information is carried by the MAC layer, it can be carried by the header (MAC header) of the MAC layer. Further, the MAC header can further transmit various information related to the protocol data unit (PDU: Protocol Data Unit) of the MAC layer, for example, a logic channel type, a logic channel signal, etc., and the embodiment of the present invention is the same. Not limited to. The first configuration information may be carried by the CE of the MAC layer, and the MAC CE can further transmit buffer status report (BSR: Buffer Tantalum Report), tracking area (TA: Tracking Area) information, and the like. Examples of the invention are not limited to this.

When the first configuration information is carried by the RRC layer, it can be carried by the system information of the RRC layer, for example by a conventional system information block (SIB) message or a new SIB message. Can be done. The first configuration information can be further carried by dedicated signaling of the RRC layer, such as RRC reconstruction signaling, RRC connection release signaling, and the like, and the embodiments of the present invention are not limited thereto.

Other than the above method, the first configuration information instruction method adopts the EAFCN instruction method, and can indicate the center frequency point and the system bandwidth of each carrier of the second carrier subset B. The modes are:
ARFCN 1, Bandwidth 1;
ARFCN 2, Bandwidth 2;
ARFCN 3, Bandwidth 3;
Specifically, the terminal determines the first time point T ₁ as follows. In S210, the terminal receives the signaling transmitted from the base station on the carrier of the first carrier subset A, where the terminal receives from the base station in subframe n on the carrier of the first carrier subset A. It can include receiving the transmitted signaling, where n is the subframe index number. In S220, the terminal maintains a connection on the carrier of the second carrier subset B from the _first time point T1 based on the signaling, where the terminal is based on the signaling and from the subframe n + N to the second carrier subset. It can include maintaining a connection on the carrier of B, where N is a positive integer.

It should be understood that N in the embodiments of the present invention is a constant, or N is determined according to the promised rules, or N is arranged by the base station.

Also, as an embodiment, N is determined according to the promised rules and in method 200,
It is determined that the terminal transmits data in P subframes in which the base station is continuous, and P is a positive integer.
S210 in which the terminal receives the signaling transmitted from the base station on the carrier of the first carrier subset
The terminal can include receiving the signaling transmitted from the base station in subframes n on the carrier of the first carrier subset, where the subframes n are continuous P. It is one of the subframes
S220, on which the terminal maintains a connection on the carrier of the second carrier subset from the first time point, based on the signaling.
The terminal can include determining whether the subframe n + Q is one of the P consecutive subframes, where Q is a positive integer and Q is a constant. That there,
If the subframe n + Q is not one of the P consecutive subframes, the subframe n + N is determined as the subframe n + Q.
When the subframe n + Q is one of the continuous P subframes, the subframe n + N is determined as the Cth subframe after the continuous P subframes. , C is a positive integer and C is a constant,
The terminal can include maintaining a connection from the subframe n + N on the carrier of the second carrier subset.

Specifically, the physical meaning of Q is the system processing delay, that is, Q is related to the system processing delay, and the physical meaning of C is the frequency modulation processing delay, that is, C is related to the frequency modulation processing delay. .. The base station determines that data transmission is performed by occupying P consecutive subframes, and the subframe n is one of the continuous P subframes. The base station determines whether or not the subframe n + Q is one of the continuous P subframes based on the number of subframes Q corresponding to the system processing delay. If the subframe n + Q is not one of the continuous P subframes, the base station determines the subframe n + N as the subframe n + Q and the subframe n + Q is the continuous P pieces. If it is one of the subframes of, the base station determines the subframes n + N as the Cth subframe after the P consecutive subframes. The terminal transmits a plurality of subframes from the subframe n + N in the second carrier subset B to maintain the connection. That is, after hopping, the base station continues to maintain the connection state before hopping with a new carrier wave.

In one specific example, the number of subframes for data transmission on the original carrier and the new carrier may be P. FIG. 3A shows that some symbols (eg, Orthogonal Frequency Division Multiplexing (OFDM) symbols) need to be freed to complete carrier switching. FIG. 3B shows that one subframe needs to be freed to complete the carrier switch. It should be understood that FIGS. 3A and 3B are only schematic and are not intended to limit the embodiments of the present invention.

In another specific example, the base station determines that it occupies P consecutive subframes for data transmission, and the subframe n is one of the continuous P subframes. If there is one, it is the Cth subframe after the P subframes in which the subframes n + N are continuous. Preferably, it is the first or second subframe after the P consecutive subframes. FIG. 4A shows that some symbols need to be vacant to complete the carrier switch. FIG. 4B shows that one subframe needs to be freed to complete the carrier switch. It should be understood that FIGS. 4A and 4B are only schematic and are not intended to limit the embodiments of the present invention.

In the embodiment of the present invention, the method 200 is
The terminal determines that the base station transmits data in P consecutive subframes, where P is a positive integer and the subframe n and the subframe n + N are continuous. It can be further included that it is a subframe out of P subframes that are
It is possible that the terminal maintains a connection from subframe n + N on the carrier of the second carrier subset based on the signaling.
The terminal detects a signal or physical channel transmitted from the base station on the carrier wave of the second carrier wave subset from the subframe n + N, and the base station occupies the carrier wave of the second carrier wave subset and data. Determining whether to perform transmission, or the terminal transmits downlink control information DCI detection and / or data from the subframe n + N on the carrier of the second carrier subset to the P subframes. Termination, or the terminal detects DCI and / or transmits data from the subframe n + N on the carrier of the second carrier subset, exits up to P + E subframes, where E is a non-negative integer. The value of E is related to the length of time space free resources required for frequency modulation, or the terminal is transmitted from the base station on the carrier of the second carrier subset in the subframe n + N. The second configuration information is received and the second configuration information is used to indicate that the number of subframes continuously transmitted from the subframes n + N is T, where T is a positive integer and the terminal is Includes detecting and / or transmitting data from the subframe n + N on the carrier of the second carrier subset and ending up to the T subframes.

In another embodiment of the invention, the terminal is idle. The idle state means that the terminal resides on the carrier wave. In the embodiment of the present invention, the terminal resides on the carrier wave of the first carrier wave subset A. At the second time point T2 (the time when the idle terminal can receive the signaling, for example, the time of broadcasting signaling scheduling or the time of receiving the paging message), the base station is the carrier wave of the first carrier wave subset A by the specific signaling, and the service carrier wave is Notify the terminal to convert from the first carrier subset A to the second carrier subset B, i.e. hopping from the carrier of the first carrier subset A to the carrier of the second carrier subset B and resident. To instruct. Here, A ∈ S, B ∈ S, A ≠ B. Since the understanding of A, B, and S is consistent with the case of the embodiment in which the terminal is in the connected state, the description thereof is omitted here.

Based on the above signaling, the terminal resides on the carrier wave of the second carrier wave subset B from the _first time point T1. In this case, all system information on the carrier of the second carrier subset B connected to the terminal is maintained to match the system information on the carrier of the first carrier subset A. And preferably, after the _first time point T1, the terminal acquires system information via the carrier of the second carrier subset B.

FIG. 5 is a schematic flow chart of a carrier hopping method 500 according to an embodiment of the present invention from a terminal in an idle state, which method 500 includes S510 and S520.

In S510, the terminal receives the signaling transmitted from the base station at a second time point on the carrier of the first carrier subset, where the terminal is now resident on the carrier of the first carrier subset and said. Signaling is used to instruct the terminal to resident by hopping from the carrier of the first carrier subset to the carrier of the second carrier subset, the first carrier subset and the second carrier subset. Both belong to a preset carrier set, and the center frequency points and / or bandwidths of any two carriers in the preset carrier set are different, and all carriers in the preset carrier set are A set of system information is shared, the first carrier subset and the second carrier subset each contain at least one carrier, and the carrier of the first carrier subset is complete with the carrier of the second carrier subset. Not the same.

In S520, the terminal resides on the carrier of the second carrier subset from the first time point based on the signaling.

In the carrier wave hopping method according to the embodiment of the present invention, when a carrier wave set sharing one set of system information is set and an idle terminal receives a signaling indicating carrier wave hopping from a base station, the same carrier wave as the old carrier wave is used. It resides on a new carrier that belongs to the set and can adjust the required frequency and bandwidth when the operating frequency points are interfered with, i.e., achieve carrier hopping and improve the user experience.

In an embodiment of the invention, the second time point T ₂ corresponds to the transmission subframe of system information and / or the second time point T ₂ corresponds to the transmission subframe of the paging channel. The second time point T ₂ may be a series of time points during which the idle terminal can receive the signaling.

In one embodiment, the base station transmits signaling by system information before performing carrier hopping. The signaling can include configuration information to indicate the carrier of the second carrier subset B. At the same time, the signaling can include information to indicate the _first time point T1. The _first time point T1 can be visually assigned to a terminal by signaling, and an implicit promise allows the terminal and base station to pre-promise hopping time, eg after some subframes. be.

It should be understood that the description of the first time point is used in the examples of the terminal in the idle state and the example of the terminal in the connected state, and the first time point in the two embodiments may be the same. It may be different, and the embodiments of the present invention are not limited to this.

The base station performs the downlink control information DCI of the CSS in the common search space of the PDCCH in the paging channel or the transmission subframe of the paging channel before and / or after the carrier hopping, or the transmission sub of the paging channel. Signaling can be carried by DCI in the CSS of the enhanced physical downlink control channel EPDCCH in the frame. The signaling can include a first configuration information to indicate the carrier of the second carrier subset B. At the same time, signaling can include information to indicate the cell to which the system information belongs. The information in the cell is a physical cell identifier (PCI), an E-UTRAN cell global identifier (ECGI:) so as to separate each signaling or data transmitted from a cell that has accessed the originally resident frequency band. E-UTRAN Cell Global Identifier) and the like can be included. Here, E-UTRAN is an evolved universal terrestrial radio access network (Evolved UTRAN = Evolved Universal Terrestrial Radio Access Network).

More specifically, the transmission of signaling can be realized by a combination of one or more of the following methods. When the second time point corresponds to the transmission subframe of the broadcast channel, the base station transmits the signaling through the broadcast channel, and the second time point corresponds to the transmission subframe of the system information. , The base station transmits the signaling by system information, and when the second time point corresponds to the transmission subframe of the paging channel, the base station is the common search space CSS of the paging channel, the physical downlink control channel PDCCH. The signaling is transmitted by at least one of the DCIs in the CSS of the enhanced physical downlink control channel EPDCCH in the downlink control information DCI and the transmission subframe of the paging channel in.

As mentioned above, the first configuration information may be carried to at least one of the system information, the CSS CDI of the transmission subframe of the paging channel. Similar to the embodiment of the terminal in the connected state, the first configuration information can include a carrier index, a center frequency point index or a bitmap to indicate the carrier of the second carrier subset.

FIG. 6 is a schematic flowchart of the carrier hopping method 600 according to the embodiment of the present invention from the base station, which method 600 includes S610 and S620.

In S610, the base station sends a signaling to the terminal, which is used to indicate that the base station operates by hopping from the carrier of the first carrier subset to the carrier of the second carrier subset. , The first carrier subset and the second carrier subset both belong to a preset carrier set, and the center frequency point and / or bandwidth of any two of the preset carrier sets. Different, all carriers of the preset carrier set share one set of system information, the first carrier subset and the second carrier subset each contain at least one carrier, said first. The carrier of the carrier subset is not exactly the same as the carrier of the second carrier subset.

In S620, the base station operates on the carrier of the second carrier subset from the first point in time.

In the carrier wave hopping method in the embodiment of the present invention, a carrier wave set that shares one set of system information is set, the base station hops with a new carrier wave belonging to the same carrier wave set as the old carrier wave, and carrier wave hopping is performed by signaling. It is possible to instruct the terminal to adjust the required frequency and bandwidth when the operating frequency point is interfered with, that is, to realize carrier hopping and improve the user experience.

Further, in one embodiment, the S610 in which the base station transmits signaling to the terminal to the terminal in the connected state is
Downlink control information DCI, enhanced physical downlink control in the common search space CSS of the broadcast channel, physical downlink control channel PDCCH, on the carrier of the first carrier subset before the base station said first time point. DCI in CSS of channel EPDCCH, DCI in user equipment UE dedicated search space of PDCCH, DCI in USS of EPDCCH, dedicated physical channel, header of media access control MAC layer, control element CE of the MAC layer, radio resource control RRC layer It can include transmitting the signaling to the terminal by at least one of the system information of the above and the dedicated signaling of the RRC layer.

Further, in another embodiment, the S610 in which the base station transmits signaling to the terminal in the idle state is
The base station can include hopping to the carrier of the first carrier subset and transmitting the signaling to the terminal at a second time point after the first time point.
Here, the base station transmits the signaling to the terminal by at least one of the following methods:
When the second time point corresponds to a transmission subframe of a broadcast channel, the base station transmits the signaling through the broadcast channel.
When the second time point corresponds to the transmission subframe of the system information, the base station transmits the signaling by the system information.
When the second time point corresponds to the transmission subframe of the paging channel, the base station is in the transmission subframe of the downlink control information DCI and the paging channel in the common search space CSS of the paging channel and the physical downlink control channel PDCCH. The signaling is transmitted by at least one of the DCIs in the CSS of the enhanced physical downlink control channel EPDCCH.

Here, the second time point is
After the first time point, the first D transmission subframes of the broadcast channel,
Corresponds to at least one of the first D transmission subframes of the system information after the first time point and the first D transmission subframes of the paging channel after the first time point. ,
Here, D is a positive integer, promised by the protocol or placed by the base station.

For terminals that are idle, the signaling contains information to indicate the first time point. Specifically, the signaling can include information to indicate a first time point at which the terminal begins to reside on the carrier of the second carrier subset.

For terminals in an idle state, the signaling may include information to indicate the cell to which the system information belongs.

In an embodiment of the invention, the signaling includes a first configuration information to indicate the carrier of the second carrier subset.

In an embodiment of the invention, the first configuration information may include a carrier index, a center frequency point index or a bitmap to indicate the carrier of the second carrier subset.

In the embodiment of the present invention, the S610 in which the base station transmits signaling to the terminal is
The base station may include transmitting the signaling to the terminal in subframe n on the carrier of the first carrier subset, where n is the subframe index number.
The S620, in which the base station operates on the carrier of the second carrier subset from the first point in time, is
The base station comprises operating from the subframe n + N on the carrier of the second carrier subset, where N is a positive integer.

Where N is a constant, or N is determined according to the promised rules, or N is located at the base station.

In one embodiment, N is determined according to the promised rules and the method 600 is:
The base station transmits data in P consecutive subframes, where P is a positive integer and the subframe n is one of the continuous P subframes. Including more
The S620 in which the base station operates on the carrier of the second carrier subset from the first point in time
The base station determines whether the subframe n + Q is one of the P consecutive subframes, where Q is a positive integer and Q is a constant.
If the subframe n + Q is not one of the P consecutive subframes, the subframe n + N is determined as the subframe n + Q.
When the subframe n + Q is one of the continuous P subframes, the subframe n + N is determined as the Cth subframe after the continuous P subframes. , C is a positive integer and a constant,
It comprises operating the base station from the subframe n + N on the carrier of the second carrier subset.

In one specific embodiment, the method 600
The base station transmits data in P consecutive subframes, P is a positive integer, and the subframe n and the subframe n + N are subframes of the continuous P subframes. Including that it is a frame
The 620, in which the base station operates on the carrier of the second carrier subset from the first point in time,
Before it is determined that the base station occupies the carrier wave of the second carrier wave subset and performs data transmission, the base station transmits data on the carrier wave of the second carrier wave subset or by a physical channel, the base station data. Notifying the terminal that transmission is to be performed,
The base station transmits data from the subframe n + N on the carrier of the second carrier subset and ends up to the P subframes, or the base station is from the subframe n + N to the second. Data is transmitted on a carrier of a carrier subset, ending up to P + E subframes, E is a non-negative integer, and the value of E is related to the length of time space free resources required for frequency modulation, or In the subframe n + N, the base station transmits the second configuration information on the carrier wave of the second carrier subset, and the number of subframes in which the second configuration information is continuously transmitted from the subframe n + N is Used to indicate T, where T is a positive integer, the base station transmits data from subframe n + N on the carrier of the second carrier subset and ends up to the T subframes. Including that.

That is, after performing carrier wave hopping, the base station can continue data transfer according to the above embodiment. Naturally, after hopping to the second carrier subset B, the base station can stop the transmission of the remaining uncompleted data and wait for the next transmission, and the embodiments of the present invention are not limited to this. ..

It should be understood that in each embodiment of the invention, the magnitude of each process number above does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic. It does not constitute any limitation to the implementation process of the embodiments of the present invention.

The carrier wave hopping method according to the embodiment of the present invention will be described in detail above, and the terminal and the base station according to the embodiment of the present invention will be described below.

FIG. 7 is a schematic block diagram showing a terminal 700 according to an embodiment of the present invention. The terminal 700 is a connected terminal, and the terminal 700 includes a receiving module 710 and a processing module 720.

The receive module 710 is configured to receive signaling transmitted from a base station on the carrier of the first carrier subset, wherein the terminal currently maintains a connection on the carrier of the first carrier subset. The signaling is used to instruct the terminal to maintain a connection by hopping from the carrier of the first carrier subset to the carrier of the second carrier subset, the first carrier subset and the second carrier subset. All of the preset carrier sets belong to a preset carrier set, all of which have different center frequency points and / or bandwidths of any two of the preset carrier sets. Carriers share a set of system information, the first carrier subset and the second carrier subset each contain at least one carrier, and the carrier of the first carrier subset is of the second carrier subset. Not exactly the same as the carrier.

The processing module 720 is configured to maintain a connection on the carrier of the second carrier subset from the first time point based on the signaling received by the receiving module 710.

In the embodiment of the present invention, a new carrier wave belonging to the same carrier wave set as the old carrier wave is set when a carrier wave set sharing one set of system information is set and a terminal in a connected state receives a signaling indicating carrier wave hopping from a base station. It is possible to maintain the connection and adjust the required frequency and bandwidth when the operating frequency points are interfered with, that is, to realize carrier hopping and improve the user experience.

Further, as an embodiment, the receiving module 710 is further described.
After the first time point, the system information may be configured to be acquired via the carrier of the second carrier subset.

Also, as one embodiment, the signaling includes a first configuration information to indicate the carrier of the second carrier subset.

Also, as one embodiment, the first configuration information includes a carrier index, a center frequency point index or a bitmap to indicate the carrier of the second carrier subset.

Further, as an embodiment, the receiving module 710 specifically
It may be configured to receive the signaling transmitted from the base station in a subframe n on the carrier of the first carrier subset, where n is the subframe index number.
Specifically, the processing module 720 is
Based on the signaling, the subframe n + N may be configured to maintain a connection on the carrier of the second carrier subset, where N is a positive integer.

Also, as an embodiment, N may be a constant, N may be determined according to the promised rules, or N may be arranged by the base station.

Further, as one embodiment, the signaling is dedicated to the broadcast, downlink control information DCI in the common search space CSS of the physical downlink control channel PDCCH, DCI in the CSS of the enhanced physical downlink control channel EPDCCH, and the user apparatus UE of the PDCCH. Of the DCI in the search space USS, the DCI in the EPDCCH USS, the dedicated physical channel, the header of the media access control MAC layer, the control element CE of the MAC layer, the system information of the radio resource control RRC layer, and the dedicated signaling of the RRC layer. Transported to at least one.

Also, as an embodiment, N is determined according to the promised rules, and the processing module 720 further comprises.
The base station may be configured to ensure transmission of data in P consecutive subframes, where P is a positive integer.
Specifically, the receiving module 710 is
The subframe n on the carrier of the first carrier subset may be configured to receive the signaling transmitted from the base station, wherein the subframe n is of P consecutive subframes. One of them,
Specifically, the processing module 720 is
It is determined whether the subframe n + Q is one of the P consecutive subframes, where Q is a positive integer and Q is a constant.
If the subframe n + Q is not one of the P consecutive subframes, it is determined that the subframe n + N is the subframe n + Q.
When the subframe n + Q is one of the continuous P subframes, the subframe n + N is determined as the Cth subframe after the continuous P subframes. , C is a positive integer and C is a constant,
The terminal may be configured to maintain a connection from the subframe n + N on the carrier of the second carrier subset.

Further, as an embodiment, the processing module 720 is further described.
The base station may be configured to ensure transmission of data in P consecutive subframes, where P is a positive integer and the subframe n and the subframe n + N are continuous. It is a subframe out of the P subframes that are
Specifically, the receiving module 720 is
From the subframe n + N, a signal or a physical channel transmitted from the base station is detected on the carrier wave of the second carrier wave subset, and the base station occupies the carrier wave of the second carrier wave subset to perform data transmission. Confirm whether or not, or
From the subframe n + N, the downlink control information DCI is detected and / or data is transmitted on the carrier wave of the second carrier wave subset and ends up to the P subframes, or from the subframe n + N, the second. DCI is detected and / or data is transmitted on the carrier wave of the carrier wave subset of In connection with this, or in the subframe n + N, the second configuration information transmitted from the base station on the carrier of the second carrier subset is received, and the second configuration information is the second configuration information that the base station said. Used to indicate that the number of subframes transmitted continuously from subframe n + N is T, where T is a positive integer and DCI detection and DCI detection from the subframe n + N on the carrier of the second carrier subset. / Or data may be transmitted and configured to end up to the T subframes.

It should be noted that in the embodiments of the present invention, the receiving module 710 may be implemented by a transceiver and the processing module 720 may be implemented by a processor. As shown in FIG. 8, the terminal 800 can include a processor 810, a transceiver 820 and a memory 830. Here, the memory 830 may be configured to store code or the like executed by the processor 810.

Each component in the terminal 800 is coupled via a bus system 840, which includes a power bus, a control bus and a status signal bus in addition to the data bus.

The terminal 700 shown in FIG. 7 or the terminal 800 shown in FIG. 8 can realize each process realized in the embodiment of FIGS. 1 to 6, and the description thereof will be omitted in order to avoid repetition.

It should be noted that the embodiments of the above method of the present invention may be applied to or realized by a processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step in the embodiment of the above method may be completed by a hardware integrated logic circuit in the processor or a command in the form of software. The above-mentioned processor is a general-purpose processor, a digital signal processor (DSP: Digital Signal Processor), an integrated circuit for a specific application (ASIC: Application Specific Integrated Circuit), a field programmable gate array (FPGA: Field Programmable Logic device, etc.) or a Field Programmable Gate Array. It may be a discrete gate, a transistor logic device, or a discrete hardware member. Each method, step and logic block diagram disclosed in the embodiments of the present invention can be realized or implemented. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present invention are performed and completed directly by a hardware decoding processor or by a combination of hardware and software modules in the decoding processor. It may be realized. Software modules may be located in mature storage media in the art such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers. The storage medium is located in memory and the processor reads the information in memory and combines it with its hardware to complete the steps of the above method.

It can be understood that the memory in the embodiment of the present invention may be a volatile storage device or a non-volatile storage device, or may include both a volatile storage device and a non-volatile storage device. Here, the non-volatile storage device includes a read-only memory (ROM: Read-Only Memory), a programmable read-only memory (PROM: Programmable ROM), an erasable programmable read-only memory (EPROM: Erasable PROM), and an electrically erasable programmable read. It may be a dedicated memory (EEPROM: Electrically EPROM) or a flash memory. The volatile storage device may be a random access memory (RAM: Random Access Memory) that functions as an external cache memory. By way of illustration rather than limitation, many forms of RAM are available, such as static random access memory (SRAM: Static RAM), dynamic random access memory (DRAM: Dynamic RAM), synchronous dynamic random access. Memory (SDRAM: Synchronous DRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDR SDRAM: Double Data Rate SDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESRAM: Enhanced SDRAM), Synchronous Link Dynamic Random Access Memory (SL DRAM) : Synclink DRAM) and direct rambus random access memory (DR RAM: Direct Rambus RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable type of memory.

FIG. 9 is a schematic block diagram of the terminal 900 according to one embodiment of the present invention. The terminal 900 is an idle terminal, and the terminal 900 includes a receiving module 910 and a processing module 920.

The receive module 910 is configured to receive signaling transmitted from a base station at a second time point on the carrier of the first carrier subset, where the terminal is currently the carrier of the first carrier subset. Resident in, the signaling is used to instruct the terminal to resident by hopping from the carrier of the first carrier subset to the carrier of the second carrier subset, the first carrier subset and the first. Both of the two carrier subsets belong to a preset carrier set, the center frequency points and / or bandwidths of any two of the preset carrier sets are different, and the preset carrier set. All carriers share a set of system information, the first carrier subset and the second carrier subset each contain at least one carrier, and the carrier of the first carrier subset is the second carrier. Not exactly the same as the carrier of the subset.

The processing module 920 is configured to reside on the carrier of the second carrier subset from the first time point based on the signaling received by the receiving module 910.

In the embodiment of the present invention, when a carrier wave set sharing one set of system information is set and an idle terminal receives a signaling indicating carrier wave hopping from a base station, a new carrier wave belonging to the same carrier wave set as the old carrier wave is received. It is resident in and can adjust the frequency and bandwidth required when the operating frequency point is interfered with, that is, carrier hopping can be realized and the user experience can be improved.

Also, as one embodiment, the second time point corresponds to the transmission subframe of the system information and / or the second time point corresponds to the transmission subframe of the paging channel.

Further, as an embodiment, the receiving module 910 is further described.
After the first time point, the system information is configured to be acquired via the carrier of the second carrier subset.

Also, as one embodiment, the signaling includes a first configuration information to indicate the carrier of the second carrier subset.

Also, as one embodiment, the first configuration information includes a carrier index, a center frequency point index or a bitmap to indicate the carrier of the second carrier subset.

Also, as an embodiment, the signaling includes information to indicate the first time point.

Also, as one embodiment, the signaling includes information to indicate the cell to which the system information belongs.

Further, as one embodiment, the signaling is a physical downlink control channel in the transmission subframe of the broadcast channel, system information, paging channel, and paging channel. The downlink control information DCI in the common search space CSS of the PDCCH and the transmission sub of the paging channel. It is carried to at least one of the DCIs in the CSS of the enhanced physical downlink control channel EPDCCH in the frame.

It should be noted that in the embodiments of the present invention, the receiving module 910 may be implemented by a transceiver and the processing module 920 may be implemented by a processor. As shown in FIG. 10, the terminal 1000 can include a processor 1010, a transceiver 1020 and a memory 1030. Here, the memory 1030 may be configured to store code or the like executed by the processor 1010.

Each component in the terminal 1000 is coupled via a bus system 1040, which includes a power bus, a control bus and a state signal bus in addition to the data bus.

The terminal 900 shown in FIG. 9 or the terminal 1000 shown in FIG. 10 can realize each process realized in the embodiments of FIGS. 1 to 6, and the description thereof will be omitted in order to avoid repetition.

FIG. 11 is a schematic block diagram of the base station 1100 according to one embodiment of the present invention. The base station 1100 includes a transmission module 1110 and a processing module 1120.

The transmission module 1110 is configured to transmit signaling to the terminal, which indicates that the base station operates by hopping from the carrier of the first carrier subset to the carrier of the second carrier subset. Both the first carrier subset and the second carrier subset belong to a preset carrier set and the center frequency point of any two of the preset carrier sets. And / or with different bandwidths, all carriers in the preset carrier set share one set of system information, and the first carrier subset and the second carrier subset each contain at least one carrier. , The carrier of the first carrier subset is not exactly the same as the carrier of the second carrier subset.

The processing module 1120 is configured to operate on the carrier of the second carrier subset from the first point in time.

In the embodiment of the present invention, a carrier wave set that shares one set of system information is set, the base station hops with a new carrier wave belonging to the same carrier wave set as the old carrier wave, and the terminal is hopping with the carrier wave by signaling. It can be instructed to adjust the required frequency and bandwidth when the operating frequency points are interfered with, i.e., to achieve carrier hopping and improve the user experience.

Further, as an embodiment, the transmission module 1110 specifically
Prior to the first time point, in the carrier of the first carrier subset, the downlink control information DCI in the common search space CSS of the broadcast channel, physical downlink control channel PDCCH, in the CSS of the enhanced physical downlink control channel EPDCCH. DCI, DCI in USS dedicated search space for user equipment UE of PDCCH, DCI in USS of EPDCCH, dedicated physical channel, header of media access control MAC layer, control element CE of the MAC layer, system information of radio resource control RRC layer and the above. The signaling may be configured to be transmitted to the terminal by at least one of the dedicated signalings of the RRC layer.

Further, as another embodiment, specifically, the transmission module 1110 is
The base station may be configured to hopping to the carrier of the first carrier subset and transmitting the signaling to the terminal at a second time point after the first time point.

Here, the transmission module transmits the signaling to the terminal by at least one of the following methods:
When the second time point corresponds to a transmission subframe of a broadcast channel, transmitting the signaling through the broadcast channel,
When the second time point corresponds to the transmission subframe of the system information, the base station transmits the signaling by the system information.
When the second time point corresponds to the transmission subframe of the paging channel, the downlink control information DCI in the common search space CSS of the paging channel and the physical downlink control channel PDCCH and the enhanced physical downlink in the transmission subframe of the paging channel. The signaling is transmitted by at least one of the DCIs in the CSS of the link control channel EPDCCH.

Here, the second time point is
After the first time point, the first D transmission subframes of the broadcast channel,
Corresponds to at least one of the first D transmission subframes of the system information after the first time point and the first D transmission subframes of the paging channel after the first time point. ,
Here, D is a positive integer, promised by the protocol or placed by the base station.

Also, as an embodiment, the signaling includes information to indicate the first time point.

Also, as one embodiment, the signaling includes information to indicate the cell to which the system information belongs.

Also, as one embodiment, the first configuration information for indicating the carrier wave of the second carrier wave subset is included.

Also, as one embodiment, the first configuration information includes a carrier index, a center frequency point index or a bitmap to indicate the carrier of the second carrier subset.

Further, as an embodiment, the transmission module 1110 specifically
The signaling may be configured to be transmitted to the terminal at subframe n on the carrier of the first carrier subset, where n is the subframe index number.
Specifically, the processing module 1120 is
From the subframe n + N, it may be configured to operate on the carrier of the second carrier subset, where N is a positive integer.

Where N is a constant, or N is determined according to the promised rules, or N is located at the base station.

Further, as an embodiment, N is determined according to the promised rule, and the transmission module 1110 is further determined.
It may be configured to transmit data in P consecutive subframes, where P is a positive integer and the subframe n is one of the continuous P subframes. can be,
Specifically, the processing module 1120 is
It is determined whether the subframe n + Q is one of the P consecutive subframes, where Q is a positive integer and Q is a constant.
If the subframe n + Q is not one of the P consecutive subframes, it is determined that the subframe n + N is the subframe n + Q.
When the subframe n + Q is one of the continuous P subframes, the subframe n + N is determined as the Cth subframe after the continuous P subframes. , C is a positive integer and a constant,
From the gear subframe n + N, it may be configured to operate on the carrier of the second carrier subset.

Further, as an embodiment, the transmission module 1110 is further described.
The base station may be configured to transmit data in P consecutive subframes, where P is a positive integer and the subframe n and the subframe n + N are P consecutive. It is a subframe of the subframes of
Specifically, the processing module 1120 is
Before it is determined that the base station occupies the carrier wave of the second carrier wave subset and performs data transmission, a signal or physical channel is transmitted on the carrier wave of the second carrier wave subset, and the base station transmits data. Notify the terminal that it will do
From the subframe n + N, data is transmitted on the carrier of the second carrier subset and ends up to the P subframes, or from the subframe n + N, data is transmitted on the carrier of the second carrier subset. , P + E subframes, E is a non-negative integer, the value of E is related to the length of time space free resources required for frequency modulation, or in the subframe n + N, the second The second configuration information is transmitted on the carrier of the carrier subset, and the second configuration information is used to indicate that the number of subframes that the base station continuously transmits from the subframes n + N is T. , T is a positive integer, and the base station may be configured to transmit data from subframes n + N on the carrier of the second carrier subset and terminate up to the T subframes.

It should be noted that the transmission module 1110 may be implemented by transmission and reception, and the processing module 1120 may be implemented by the processor. As shown in FIG. 12, the base station 1200 can include a processor 1210, a transceiver 1220 and a memory 1230. Here, the memory 1230 may be configured to store code or the like executed by the processor 1210.

Each member in the base station 1200 is coupled via a bus system 1240, which includes a power bus, a control bus and a status signal bus in addition to the data bus.

The base station 1100 shown in FIG. 11 or the base station 1200 shown in FIG. 12 can realize each process realized in the embodiments of FIGS. 1 to 6, and the description thereof will be omitted in order to avoid repetition.

Those skilled in the art may implement the units and algorithm steps of each example described in combination with the embodiments disclosed herein in electronic hardware, or in combination with computer software and electronic hardware. Can be understood. Whether these functions are performed in hardware or software depends on the specific application and design commitments of the technical solution. Professional engineers may achieve the functionality described using different methods for each particular application, but such realization should not be considered beyond the scope of the present invention.

Those skilled in the art can refer to the corresponding processes in the embodiments of the above method for the specific operating processes of the systems, appliances and units described above for convenience and concise description, and clearly understand that the description is omitted here. can do.

It should be understood that in some of the embodiments provided by this application, the disclosed systems, devices and methods may be implemented by other methods. The embodiment of the above-mentioned apparatus is only an example, for example, the division of the unit is only a logic functional division, and there may be other division methods at the time of actual implementation, for example, a plurality of units or members. May be combined or integrated into another system, or some features may be ignored or may not be implemented. Also, the interconnection or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via some interface, device or unit, and may be in electrical, mechanical or other form. You may.

The unit described as a separating member may or may not be physically separated, and the member labeled as a unit may be a physical unit or physically. It does not have to be a target unit, that is, it may be located in one place, or it may be distributed in a plurality of network units. Some or all of the units may be selected according to the actual needs to achieve the purpose of the solution of this embodiment.

Further, each functional unit in each embodiment of the present invention may be integrated into one processing unit, individual units may physically exist independently, and two or more units may be one. It may be integrated into a unit.

The functionality may be stored in one computer-readable storage medium when implemented in the form of a software functional unit and sold or used as an independent product. Based on this understanding, the technical solution of the present invention may be realized essentially in the form of a software product, or the part that contributes to the prior art or the part of the technical solution is in the form of a software product. It may be realized, and the computer software product may have one computer device (which may be a personal computer, a server, a network device, etc.) and all or a part of the steps of the method described in each embodiment of the present invention. It is stored on a storage medium that contains several commands to execute. The storage medium includes various media that can store a program code such as a U disk, a mobile hard disk, a read-only memory (ROM: Read-Only Memory), a random access memory (RAM: Random Access Memory), a magnetic disk, or an optical disk.

The above is merely an optimum embodiment of the present invention, does not limit the present invention, and the present invention has various changes and changes to those skilled in the art. Within the spirit and principle of the present invention, any modifications, equivalent replacements, improvements, etc. should be included within the scope of protection of the present invention.

Claims (8)

It ’s a carrier hopping method.
The terminal receives the signaling transmitted from the base station on the first carrier subset, where the terminal currently transmits or resides data on the first carrier subset and the signaling is from the first carrier subset. Used to instruct the terminal to transmit or reside data by hopping to a second carrier subset, both the first carrier subset and the second carrier subset are in a preset carrier set. The first carrier subset and the first carrier subset belong to which the bandwidth of any two of the preset carrier sets is different and the preset carrier set has one set of system information. That each of the two carrier subsets contains at least one carrier and that the first carrier subset is not exactly the same as the second carrier subset.
The terminal comprises transmitting or resident data on the second carrier subset from the first time point based on the signaling.
The signaling includes a first configuration information to indicate the second carrier subset, and the preset carrier set is a preset carrier set S {S ₀ , S via higher layer signaling. ₁ , ..., _SM-1 } is pre-arranged by the base station, and each carrier of the preset carrier set S {S ₀ , S ₁ , ..., _SM-1 } has at least a center frequency. The points are arranged, and the first configuration information is

Bits of indicate one carrier index of the preset carrier set S {S ₀ , S ₁ , ..., _SM-1 }, where M is greater than or equal to 2.

Represents rounding up, the carrier hopping method. The method is
The method of claim 1, further comprising acquiring the system information via the second carrier subset after the first time point. When the terminal receives the signaling transmitted from the base station on the first carrier subset,
The terminal comprises receiving the signaling transmitted from the base station in the time unit n on the first carrier subset, where n is the time unit index number.
It is possible that the terminal transmits data on the second carrier subset from the first time point based on the signaling.
The method of claim 1 or 2 , wherein the terminal comprises transmitting data from the time unit n + N on the second carrier subset based on the signaling, wherein N is a positive integer. N is a constant or
N is confirmed according to the promised rules, or
The method according to claim 3, wherein N is arranged in the base station. The signaling includes downlink control information DCI in the common search space CSS of the broadcast channel and physical downlink control channel PDCCH, DCI in the CSS of the enhanced physical downlink control channel EPDCCH, DCI in the user device UE dedicated search space USS of the PDCCH, and so on. Transported to at least one of DCI in USS of EPDCCH, dedicated physical channel, header of media access control MAC layer, control element CE of said MAC layer, system information of radio resource control RRC layer and dedicated signaling of said RRC layer. The method according to any one of claims 1 to 4 , wherein the method is characterized by the above. The method is
It is possible that the terminal transmits data from the time unit n + N on the second carrier subset based on the signaling.
The terminal detects a signal or a physical channel transmitted from the base station in the second carrier wave subset from the time unit n + N, and the base station occupies the carrier wave of the second carrier wave subset for data transmission. Decide if you want to do it, or
When the base station transmits data in P continuous time units, the time unit n and the time unit n + N are time units in the continuous P time units, and the terminal. Detects and / or transmits data from the time unit n + N in the second carrier subset, ending up to the P time units, where P is a positive integer or
When the base station transmits data in P continuous time units, the time unit n and the time unit n + N are time units in the continuous P time units, and the terminal. Detects and / or transmits data from the time unit n + N in the second carrier subset, ending up to P + E time units, where E is a non-negative integer and the value of E is for frequency modulation. Time space required Related to the length of free resources, P is a positive integer or
In the time unit n + N, the terminal receives the second configuration information transmitted from the base station in the second carrier subset, and the second configuration information is continuously transmitted by the base station from the time unit n + N. Used to indicate that the time to be transmitted is T, where T is a positive number and the terminal transmits DCI detection and / or data from the time unit n + N on the second carrier subset. The method according to claim 3 or 4 , wherein the time unit T is terminated. If the terminal is currently transmitting or resident data on the first carrier subset, the terminal may receive signaling transmitted from the base station on the first carrier subset.
The terminal comprises receiving signaling transmitted from a base station at a second time point in the first carrier subset.
The method of claim 1, wherein the second time point corresponds to a transmission subframe of the system information and / or the second time point corresponds to a transmission subframe of a paging channel. It ’s a terminal,
The first carrier subset is configured to receive the signaling transmitted from the base station, where the terminal is currently transmitting or resident data on the first carrier subset and the signaling is the first carrier. Used to instruct the terminal to transmit or reside data by hopping from the subset to the second carrier subset, both the first carrier subset and the second carrier subset are preset carriers. Belonging to a set, any two of the preset carrier sets have different bandwidths , the preset carrier set has one set of system information, and the first carrier subset. A receiving module in which the second carrier subset each contains at least one carrier and the first carrier subset is not exactly the same as the second carrier subset.
Containing a processing module configured to transmit or reside data in the second carrier subset from the first time point based on the signaling received by the receiving module.
The signaling includes a first configuration information to indicate the second carrier subset, and the preset carrier set is a preset carrier set S {S ₀ , S via higher layer signaling. ₁ , ..., _SM-1 } is pre-arranged by the base station, and each carrier of the preset carrier set S {S ₀ , S ₁ , ..., _SM-1 } has at least a center frequency. The points are arranged, and the first configuration information is

Bits of indicate one carrier index of the preset carrier set S {S ₀ , S ₁ , ..., _SM-1 }, where M is greater than or equal to 2.

Represents rounding up, said terminal.

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