WO2018028336A1 - 一种随机接入方法和设备 - Google Patents
一种随机接入方法和设备 Download PDFInfo
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- WO2018028336A1 WO2018028336A1 PCT/CN2017/091163 CN2017091163W WO2018028336A1 WO 2018028336 A1 WO2018028336 A1 WO 2018028336A1 CN 2017091163 W CN2017091163 W CN 2017091163W WO 2018028336 A1 WO2018028336 A1 WO 2018028336A1
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- random access
- carrier
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- 238000000034 method Methods 0.000 title claims abstract description 95
- 230000000977 initiatory effect Effects 0.000 claims abstract description 17
- 239000000969 carrier Substances 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000011664 signaling Effects 0.000 claims description 9
- 125000004122 cyclic group Chemical group 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 238000004590 computer program Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a random access method and device.
- the Narrow Band Internet of Things (NB-IoT) Work Item (WI) is adopted and started in the 3GPP Release 13 (Release 13, Rel 13) phase.
- the goal of the narrowband Internet WI phase is to standardize the wireless access of the Cellular Internet of Things (CIoT) based on Long Term Evolution (LTE)/Long Term Evolution-Advanced (Long Term Evolution-Advanced, The LTE-A technology is extended.
- the main network features and objectives are: enhancing indoor coverage, supporting a large number of low-speed device access, low latency sensitivity, reducing device cost, reducing device power consumption, and optimizing network architecture.
- the characteristics that NB-IoT communication may have include:
- NB-IoT terminal has low mobility
- the data transmission performed by the NB-IoT terminal and the network side does not require high real-time performance
- the NB-IoT terminal is energy limited and requires extremely low power consumption
- NB-IoT terminals have low implementation complexity, and so on.
- An NB-IoT terminal can have one or more of the above characteristics.
- NB-IoT supports multi-carrier operation.
- the carrier is divided into a primary carrier (also referred to as an anchor carrier) and a secondary carrier (also referred to as a non-anchor carrier).
- the user equipment (User Equipment, referred to as UE; also referred to as the terminal) on the primary carrier can receive the Narrow Band Physical Broadcast Channel (NPBCH) and the Narrow Band Primary Synchronization Signal (NPSS). Narrow Band Secondary Synchronization Signal (NSSS) and System Information Block (SIB) transmission.
- NNBCH Narrow Band Physical Broadcast Channel
- NPSS Narrow Band Primary Synchronization Signal
- SIB System Information Block
- the R13 UE on the secondary carrier currently only needs the Narrow Band-Physical Downlink Control Channel (Narrow Band-Physical Downlink Control Channel, The Narrow Band-Physical Downlink Shared Channel (NB-PDSCH) and/or the Narrow Band-Physical Uplink Shared Channel (NB-PUSCH).
- NB-IoT terminals cannot work on multiple carriers at the same time due to their limited capabilities.
- random access can only be initiated on the primary carrier.
- the network side is configured with the connected state.
- the UE works in the secondary carrier, the UE will continue to work on the secondary carrier until it enters the idle state, or needs to initiate random access in the connected state or be allocated to another carrier.
- the NB-IoT supports multi-carrier operation, and the UE can only initiate random access on the primary carrier, which results in limited random access capacity of the system and cannot provide a better service for a large number of NB-IoT terminals.
- the embodiment of the present invention provides a random access method and device, which is used to solve the problem that the NB-IoT supports multi-carrier operation, and the UE can only initiate random access on the primary carrier, which results in limited random access capacity of the system.
- the problem is used to solve the problem that the NB-IoT supports multi-carrier operation, and the UE can only initiate random access on the primary carrier, which results in limited random access capacity of the system.
- a random access method comprising:
- the terminal selects one carrier from the carrier that can initiate random access to initiate random access.
- the random access information includes at least one of the following: attribute information of a carrier that can initiate random access, random access channel configuration information of a carrier that can initiate random access, and random access that can initiate random access. Physical random access channel configuration information of the carrier.
- the random access information further includes:
- Identification information for indicating a correspondence between random access channel configuration information and/or physical random access channel configuration information and a carrier that can initiate random access.
- the random access information further includes:
- bitmap identifier indicating whether the random access channel configuration information of the secondary carrier that can initiate the random access is the same as the random access channel configuration information of the primary carrier, and/or the secondary carrier used to indicate the secondary carrier that can initiate the random access Whether the physical random access channel configuration information and the physical random access channel configuration information of the primary carrier are the same bitmap identifier;
- attribute information of a carrier that can initiate random access includes at least one of the following information:
- the downlink working frequency and/or the uplink working frequency of the carrier that can initiate the random access, the index of the carrier that can initiate the random access, and the bitmap configuration information of the downlink available subframe of the carrier that can initiate the random access can be initiated.
- the downlink interval configuration of the randomly accessed carrier and the in-band carrier information of the carrier that can initiate random access can be initiated.
- the random access channel configuration information of the carrier that can initiate random access includes the following At least one of the information:
- the physical random access channel configuration information of the carrier that can initiate random access includes at least one of the following information:
- a cyclic prefix length of a physical random access channel a list of information of a reference signal reception level threshold, and a parameter list of a physical random access channel
- the parameter list includes a period of a physical random access channel, an initial time of a physical random access channel, a subcarrier offset of a physical random access channel, and at least a number of subcarriers of a physical random access channel.
- the terminal if the terminal is in an RRC idle state, the terminal needs to establish an RRC connection, or the terminal resumes an RRC connection; the terminal is configured according to the random access information. From the carrier that can initiate random access, select one carrier to initiate random access, including:
- the terminal determines a carrier that receives the paging
- the terminal selects one carrier to initiate random access from the carrier that can initiate random access, and includes:
- the terminal receives indication signaling for instructing the terminal to initiate random access on the physical downlink control channel PDCCH on any carrier that can initiate random access;
- Random access is initiated on any of the carriers that can initiate random access.
- the terminal may initiate a random access carrier according to the random access information.
- Select one carrier to initiate random access including:
- the terminal before selecting a carrier to initiate random access from a carrier that can initiate random access, further includes: switching, by the terminal, according to the network side a command to determine a target cell and a target carrier configured on the network side;
- the terminal selects a carrier to initiate random access from the carrier that can initiate the random access, and includes: the terminal according to the random access information of the target carrier, in the target carrier On, initiated in Random access of the target cell.
- the terminal receives random access information of a carrier that can initiate random access, including:
- the terminal receives random access information of a carrier that can initiate random access in the target cell, and determines random access information of the target carrier from the random access information.
- the terminal if the terminal is in an RRC connected state and moves to an edge of a current cell, or the terminal is in an RRC connection reestablishment state;
- the terminal before selecting a carrier to initiate random access from the carrier that can initiate random access, further includes: determining, by the terminal, the target cell;
- the terminal includes: receiving, by the terminal, random access information of a carrier that can initiate random access in the target cell;
- the terminal selects one carrier to initiate random access from the carrier that can initiate random access according to the random access information, and includes:
- the terminal randomly selects a carrier that can be initiated by the terminal and the network side to initiate random access, and determines random access information of the selected carrier from the random access information, and according to the determined random access. Information, initiating random access on the selected carrier.
- a random access method comprising:
- the network side sends the random access information of the carrier that can initiate the random access to the terminal, where the carrier that can initiate the random access includes the primary carrier and the secondary carrier;
- the network side receives random access of the terminal on any carrier that can initiate random access.
- the network side sends the random access information of the carrier that can initiate the random access to the terminal, including:
- the network side sends the random access information of the carrier that can initiate the random access to the terminal by using the system information of the primary carrier in the cell;
- the network side sends the random access information of the target carrier configured by the network side to the terminal to the terminal by using a handover command.
- a terminal where the terminal includes:
- a receiving module configured to receive random access information of a carrier that can initiate random access, where the random access can be initiated
- the carrier includes a primary carrier and a secondary carrier;
- an access module configured to select, according to the random access information, a carrier to initiate random access from a carrier that can initiate random access.
- the access module is specifically configured to:
- a random access can be initiated on a carrier that can initiate random access.
- the access module is specifically configured to:
- the access module is specifically configured to:
- the receiving module is specifically configured to:
- the access module is specifically configured to: determine a target cell
- Determining a carrier that receives a paging in the target cell and determining, in the random access information, random access information of a carrier that receives a paging in the target cell, according to the determined random access information, Determining random access on the carrier that receives the paging in the target cell; or randomly selecting the carrier that can be initiated by the terminal and the network side to initiate random access, and determining the selected carrier from the random access information Random access information, and according to the determined random access information, initiate random access on the selected carrier;
- the receiving module is specifically configured to: receive random access information of a carrier that can initiate random access in the target cell.
- a terminal comprising a transceiver, and at least one processor coupled to the transceiver, wherein:
- the processor is configured to read a program in the memory and perform the following process:
- the transceiver Receiving, by the transceiver, random access information of a carrier that can initiate random access, where the carrier that can initiate random access includes a primary carrier and a secondary carrier; and according to the random access information, a random access may be initiated In the carrier, one carrier is selected to initiate random access;
- the transceiver is configured to receive and transmit data under the control of the processor.
- the terminal if the terminal is in an RRC idle state, the terminal needs to establish an RRC connection, or the terminal resumes an RRC connection; the processor reads a program in the memory, and specifically performs the following process. :
- Determining a carrier that receives the paging determining, from the random access information, random access information of the carrier that receives the paging, and according to the random access information of the carrier that receives the paging, in the receiving Random access is initiated on the carrier of the call.
- the processor reads a program in the memory, and specifically performs the following process:
- a random access can be initiated on a carrier that can initiate random access.
- the processor reads the program in the memory, and specifically performs the following process:
- the processor reads a program in the memory, and specifically performs the following process:
- the processor reads the program in the memory, and specifically performs the following process:
- the processor reads a program in the memory, specifically executing the following Process:
- Determining a carrier that receives a paging in the target cell and determining, in the random access information, random access information of a carrier that receives a paging in the target cell, according to the determined random access information, Determining random access on the carrier that receives the paging in the target cell; or randomly selecting the carrier that can be initiated by the terminal and the network side to initiate random access, and determining the selected carrier from the random access information Random access information, and initiate random access on the selected carrier according to the determined random access information.
- a network side device where the network side device includes:
- a sending module configured to send random access information of a carrier that can initiate random access to a terminal, where the carrier that can initiate random access includes a primary carrier and a secondary carrier;
- the receiving module is configured to receive random access of the terminal on any carrier that can initiate random access.
- the sending module is specifically configured to:
- the random access information of the target carrier configured by the network side device for the terminal is sent to the terminal by using a handover command.
- a network side device comprising: a transceiver, and at least one processor connected to the transceiver, wherein:
- the processor is configured to read a program in the memory and perform the following process:
- the transceiver is configured to receive and transmit data under the control of the processor.
- the processor reads a program in the memory, and specifically performs the following process:
- a computer readable storage medium storing executable program code, the program The code is used to implement the method described in the first aspect.
- a computer readable storage medium wherein executable program code is stored, the program code for implementing the method of the second aspect.
- the terminal first receives random access information of a carrier that can initiate random access, and then selects one carrier from carriers that can initiate random access according to the received random access information. Initiating a random access, the scheme of the embodiment of the present invention can not only initiate random access on the primary carrier, but also random access initiated on the secondary carrier, thereby improving the overall random access capacity of the system, which can be massive.
- the NB-IoT terminal provides better service.
- FIG. 1 is a schematic flowchart of a method for random access on a terminal side according to an embodiment of the present disclosure
- FIG. 2 is a schematic flowchart diagram of a random access method on a network side according to an embodiment of the present disclosure
- FIG. 3 is a schematic diagram of a terminal according to an embodiment of the present disclosure.
- FIG. 4 is a schematic diagram of another terminal according to an embodiment of the present invention.
- FIG. 5 is a schematic diagram of a network side device according to an embodiment of the present disclosure.
- FIG. 6 is a schematic diagram of another network side device according to an embodiment of the present invention.
- the “multiple” and “multiple sets” referred to in the embodiments of the present invention mean two or more.
- a random access method on the terminal side including:
- the terminal receives random access information of a carrier that can initiate random access, where the carrier that can initiate random access includes a primary carrier and a secondary carrier.
- the number of secondary carriers that can initiate random access is one or more.
- the random access information of the primary carrier and the random access information of the secondary carrier that can initiate random access may be sent simultaneously through one system information, or may be separately sent through multiple system information.
- the terminal selects one carrier from the carrier that can initiate random access according to the random access information to initiate random access.
- the terminal first receives the random access information of the carrier that can initiate the random access, and then selects one carrier to initiate the random access from the carrier that can initiate the random access according to the received random access information.
- the solution of the embodiment of the present invention can not only initiate random access on the primary carrier, but also random access initiated on the secondary carrier, thereby improving the overall random access capacity of the system, and can be used for a large number of NB-IoT terminals. Good service.
- the random access information includes at least one of the following information:
- the attribute information of the carrier that can initiate the random access the random access channel configuration information of the carrier that can initiate the random access, and the physical random access channel configuration information of the carrier that can initiate the random access.
- the attribute information of each carrier that can initiate random access includes at least one of the following information:
- the downlink working frequency and/or the uplink working frequency of the carrier that can initiate the random access The downlink working frequency and/or the uplink working frequency of the carrier that can initiate the random access, the index of the carrier that can initiate the random access, and the bitmap of the downlink available subframe of the carrier that can initiate the random access (bitmap)
- bitmap The configuration information, the downlink configuration of the carrier that can initiate the random access, and the inband carrier information of the carrier that can initiate the random access.
- the index of the secondary carrier that can initiate the random access can also be notified to the terminal in an implicit manner.
- the index of the secondary carrier is implicitly notified by the secondary carrier configuration list, that is, the index of the secondary carrier is in the secondary carrier according to the secondary carrier. Configure the sort order in the list order as an index.
- the random access channel configuration information of each carrier that can initiate random access is one or more sets, and each set of random access channel configuration information includes at least one of the following information:
- RRC Radio Resource Control
- the physical random access channel configuration information of each carrier that can initiate random access is one or more sets, and each set of physical random access channel configuration information includes at least one of the following information:
- a cyclic prefix (CP) length of a physical random access channel a list of information of a reference signal reception level threshold, and a parameter list of a physical random access channel.
- the parameter list of the physical random access channel corresponds to one or more parameters of the physical random access channel, and the parameter list includes but is not limited to at least one of the following parameters: a period of the physical random access channel, an initial time, and a subcarrier. Offset, number of subcarriers, etc.
- the random access information further includes:
- Identification information for indicating a correspondence between random access channel configuration information and/or physical random access channel configuration information and a carrier that can initiate random access.
- the random access information further includes:
- bitmap identifier indicating whether the random access channel configuration information of the secondary carrier that can initiate random access is the same as the random access channel configuration information of the primary carrier, and/or is used to indicate that random access can be initiated.
- Subcarrier carrier a bitmap identifier of whether the random access channel configuration information is the same as the physical random access channel configuration information of the primary carrier;
- bitmap for indicating whether the random access channel configuration information of the secondary carrier that can initiate random access and the physical random access channel configuration information are the same as the random access channel configuration information of the primary carrier and the physical random access channel configuration information ( Bitmap) identifier.
- a bitmap identifier indicating that the random access channel configuration information of the secondary carrier that can initiate random access is the same as the random access channel configuration information of the primary carrier is used as an example, and each of the bitmap identifiers is used.
- the bit corresponds to a secondary carrier, and the bit value is “0”, indicating that the random access channel configuration information of the secondary carrier corresponding to the bit is different from the random access channel configuration information of the primary carrier, and the bit value is “1”
- the random access channel configuration information of the secondary carrier corresponding to the bit is the same as the random access channel configuration information of the primary carrier.
- the terminal in S12 selects one carrier to initiate random access from the carrier that can initiate random access according to the random access information, and the specific implementation manner is different in different scenarios. There are several possible implementations:
- Mode 1 the scenario applied by the mode is that the terminal is in an RRC idle state, the terminal needs to establish an RRC connection, or the terminal resumes an RRC connection.
- S11 specifically includes:
- the terminal receives the random access information of the carrier that can initiate the random access sent by the network side by using the system broadcast, for example, the system information of the primary carrier in the cell where the terminal is currently located.
- the system information includes a Master Information Block (MIB) and/or a System Information Block (SIB).
- MIB Master Information Block
- SIB System Information Block
- S12 specifically includes:
- the terminal determines a carrier that receives the paging
- the terminal may determine, according to system information of a primary carrier in a cell where the terminal is currently located, a carrier that receives a paging.
- the mode 2 is applied to the scenario where the network side has configured the secondary carrier as the working carrier of the terminal, and the physical downlink control channel (Physical Downlink Control Channel, PDCCH for short) on the configured secondary carrier.
- the terminal is instructed to initiate random access.
- S11 specifically includes:
- the terminal receives the random access information of the carrier that can initiate the random access sent by the network side by using the system broadcast, for example, the system information of the primary carrier in the cell where the terminal is currently located.
- S12 specifically includes:
- the terminal receives indication signaling for instructing the terminal to initiate random access on the PDCCH on any secondary carrier;
- Mode 3 The scenario applied by the mode is that the secondary carrier is configured as the working carrier of the terminal for the terminal, and the terminal needs to initiate random access if the terminal is in the RRC connected state or the terminal has uplink data arrives. .
- S11 specifically includes:
- the terminal receives the random access information of the carrier that can initiate the random access sent by the network side by using the system broadcast, for example, the system information of the primary carrier in the cell where the terminal is currently located.
- S12 specifically includes:
- Mode 4 The scenario applied by the mode is that the handover of the terminal is configured on the network side.
- the terminal determines the target cell and the target carrier configured by the network side according to the handover command sent by the network side.
- the handover command indicates a target cell configured by the network side for the terminal and a target carrier on the target cell.
- the S12 specifically includes: the terminal initiating random access in the target cell on the target carrier according to random access information of the target carrier.
- the terminal acquires random access information of the target carrier, and includes the following two possible implementation manners:
- Manner 41 The handover command carries random access information of the target carrier.
- S11 specifically includes:
- the terminal receives random access information of the target carrier by using the handover command.
- S11 specifically includes:
- the terminal receives random access information of a carrier that can initiate random access in the target cell.
- the terminal determines random access information of the target carrier from the received random access information.
- the terminal receives, by using a system broadcast, for example, system information of a primary carrier in the target cell, and receiving random access information of a carrier that can initiate random access in the target cell that is sent by the network.
- a system broadcast for example, system information of a primary carrier in the target cell
- random access information of a carrier that can initiate random access in the target cell that is sent by the network.
- Mode 5 The scenario applied by the mode is that the terminal is in an RRC connected state and moves to an edge of a current cell; or the terminal is in an RRC connection reestablishment state.
- the method further includes: the terminal determining the target cell.
- the terminal determines the target cell by using a cell reselection process; if the terminal is in an RRC connection reestablishment state, the terminal passes the The cell selection process determines the target cell.
- S11 specifically includes: the terminal receiving random access information of a carrier that can initiate random access in the target cell.
- the terminal broadcasts the random access information of the carrier that can initiate the random access in the target cell that is sent by the network side by using the system broadcast, such as the system information of the primary carrier in the target cell.
- S12 specifically includes the following two possible implementation manners:
- the terminal determines a carrier that receives a paging in the target cell, and determines, in the random access information, random access information of a carrier that receives a paging in the target cell, according to the determined random
- the access information is initiated on the carrier that receives the paging in the target cell, and initiates random access.
- the mode 52 the terminal randomly selects a carrier that can be initiated by the terminal and the network side to initiate random access, and determines random access information of the selected carrier from the random access information, and according to the determined Random access information, initiate random access on the selected carrier.
- the terminal randomly selects one of the at least two carriers that can initiate random access.
- the carrier initiates random access.
- the carrier that initiates random access may also be selected in other manners.
- the terminal may select a carrier with the best signal strength to initiate random access; and the like. The specific selection manner is not limited in the embodiment of the present invention.
- a random access method on the network side including:
- S21 The network side sends the random access information of the carrier that can initiate the random access to the terminal, where the carrier that can initiate the random access includes the primary carrier and the secondary carrier.
- the network side receives random access of the terminal on any carrier that can initiate random access.
- S22 specifically includes the following possible implementation manners:
- the network side sends the random access information of the carrier that can initiate the random access to the terminal through the system broadcast.
- the network side sends the random carrier that can initiate the random access by using the system information on the primary carrier in the cell. Access information; or
- the network side sends the random access information of the target carrier configured by the network side to the terminal to the terminal by using a handover command.
- Embodiment 1 This embodiment describes a random access procedure when a terminal is in an RRC idle state and establishes or restores an RRC connection, and specifically includes:
- the terminal receives random access information of a carrier that can initiate random access, which is sent by the network side in the system broadcast, and stores the information;
- the terminal When the terminal needs to initiate initial access, for example, when receiving a paging or need to send data or signaling, if the terminal is allowed to access the network, the terminal initiates a random access procedure on the carrier receiving the paging, otherwise it does not initiate Random access process.
- Embodiment 2 This embodiment describes a random access procedure of a terminal when a network side instructs a terminal to initiate a random access procedure by using a PDCCH order. Specifically include:
- the terminal receives random access information of a carrier that can initiate random access, which is sent by the network side in the system broadcast, and stores the information;
- the secondary side is configured on the network side to the terminal, and the configuration is successful
- the network side instructs the terminal to initiate a random access procedure on the PDCCH on the configured secondary carrier
- the terminal initiates a random access procedure on the secondary carrier that receives the PDCCH.
- Embodiment 3 describes a random access procedure of a terminal when the terminal is in an RRC connected state and uplink data arrives to initiate a random access procedure. Specifically include:
- the terminal receives random access information of a carrier that can initiate random access, which is sent by the network side in the system broadcast, and stores the information;
- the secondary side is configured on the network side to the terminal, and the configuration is successful
- the terminal When the terminal does not need to update the system message, the terminal initiates a random access procedure on the secondary carrier configured on the network side.
- Embodiment 4 This embodiment describes a random access procedure of a terminal under handover of a network side configuration. Specifically include:
- the network side sends a handover command to indicate related information of the target cell
- the related information of the target cell includes, but is not limited to, at least one of the following information:
- the identifier of the target cell the identifier of the target carrier (such as the frequency of the target carrier), and the random access information of the target carrier.
- the target carrier may be a primary carrier or a secondary carrier of the target cell.
- the terminal If the target carrier configured on the network side is the primary carrier of the target cell, the terminal reads the system information on the primary carrier of the target cell and stores it, and initiates a random access procedure on the primary carrier;
- the target carrier configured on the network side is the secondary carrier of the target cell, further:
- the terminal initiates a random access procedure on the target carrier according to the random access information
- the terminal receives the network side Reading, by the primary carrier in the target cell, random access information of one or more secondary carriers that can initiate random access in the target cell, and storing the random access information of the target carrier, and acquiring the random access information of the target carrier according to the target carrier Incoming information, initiating a random access procedure on the target carrier.
- Embodiment 5 This embodiment describes a process of random access of a terminal when the terminal is in an RRC connected state and moves to a cell edge. Specifically include:
- the terminal is in an RRC connected state, and the target cell is selected by cell reselection;
- the terminal reads system information in the primary carrier of the target cell and stores it;
- the terminal initiates a random access procedure on the primary carrier of the target cell.
- Embodiment 6 This embodiment describes a process of random access of a terminal when the terminal is in an RRC connected state and moves to a cell edge. Specifically include:
- the terminal is in an RRC connected state, and the target cell is selected by cell reselection;
- the terminal reads system information in the primary carrier of the target cell and stores it;
- the terminal receives the random access information of the carrier that can initiate the random access sent by the network side in the system broadcast of the target cell, and stores, according to the system information of the target cell, determines the carrier that the terminal receives the paging, on the carrier. Initiate a random access process.
- Embodiment 7 This embodiment describes a process of random access of a terminal when the terminal is in an RRC connected state and moves to a cell edge. Specifically include:
- the terminal is in an RRC connected state, and the target cell is selected by cell reselection;
- the terminal reads system information in the primary carrier of the target cell and stores it;
- the terminal receives the random access information of the carrier that can initiate the random access, which is sent by the network side in the system broadcast of the target cell, and stores the terminal.
- the terminal randomly selects one terminal and the carrier supported by the network side to initiate a random access procedure.
- Embodiment 8 This embodiment describes a process of random access of a terminal when a terminal RRC connection is reestablished. Specifically include:
- the terminal performs cell selection and selects a target cell
- the terminal reads system information in the primary carrier of the target cell and stores it, and determines whether to access the cell according to the access control information broadcasted on the primary carrier. When the terminal can access, perform the following 3), otherwise return to execute.
- Cell selection select other cells;
- the terminal reads the random access information of the carrier that can initiate the random access sent by the network side in the broadcast of the target cell, and stores, and determines, according to the system information of the target cell, the carrier that the terminal receives the paging, on the carrier. Initiate a random access process.
- the above method processing flow can be implemented by a software program, which can be stored in a storage medium, and when the stored software program is called, the above method steps are performed.
- a terminal is provided in the embodiment of the present invention.
- the principle of solving the problem is similar to the method embodiment shown in FIG. 1 . Therefore, the implementation of the terminal can refer to the implementation of the method. Do not Let me repeat.
- a terminal is provided, and the terminal includes:
- the receiving module 31 is configured to receive random access information of a carrier that can initiate random access, where the carrier that can initiate random access includes a primary carrier and a secondary carrier;
- the access module 32 is configured to select one carrier to initiate random access from the carriers that can initiate random access according to the random access information.
- the access module 32 is specifically configured to:
- Determining a carrier that receives the paging determining, from the random access information, random access information of the carrier that receives the paging, and according to the random access information of the carrier that receives the paging, in the receiving Random access is initiated on the carrier of the call.
- the access module 32 is specifically configured to:
- a random access can be initiated on a carrier that can initiate random access.
- the access module 32 is specifically configured to:
- the access module 32 is specifically configured to:
- the receiving module 31 is specifically configured to:
- the access module 32 is specifically configured to: determine a target cell;
- Determining a carrier that receives a paging in the target cell and determining, in the random access information, the target cell
- the random access information of the carrier that receives the paging, according to the determined random access information initiates random access on the carrier that receives the paging in the target cell; or randomly selects both the terminal and the network side to support a carrier that can initiate random access, determining random access information of the selected carrier from the random access information, and initiating random access on the selected carrier according to the determined random access information;
- the receiving module 31 is specifically configured to: receive random access information of a carrier that can initiate random access in the target cell.
- another terminal comprising a transceiver 41, and at least one processor 42 coupled to the transceiver 41, wherein:
- the processor 42 is configured to read the program in the memory 43 and perform the following process:
- the transceiver 41 Receiving, by the transceiver 41, random access information of a carrier that can initiate random access, where the carrier that can initiate random access includes a primary carrier and a secondary carrier; and according to the random access information, a carrier that can initiate random access Selecting a carrier to initiate random access;
- the transceiver 41 is configured to receive and transmit data under the control of the processor 42.
- the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 42 and various circuits of memory represented by memory 43.
- the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
- the bus interface provides an interface.
- the transceiver 41 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium.
- the user interface 44 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
- the processor 42 is responsible for managing the bus architecture and general processing, as well as providing various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
- the memory 43 can store data used by the processor 42 when performing operations.
- the processor 42 can be a central buried device (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a CPLD complex programmable.
- CPU central buried device
- ASIC application specific integrated circuit
- FPGA field-programmable gate array
- CPLD Complex Programmable Logic Device
- the processor 42 reads the program in the memory 43 to perform the following process:
- Determining a carrier that receives the paging determining, from the random access information, random access information of the carrier that receives the paging, and according to the random access information of the carrier that receives the paging, in the receiving On the carrier of the call, initiate random Access.
- the processor 42 reads the program in the memory 43 and performs the following processes:
- a random access can be initiated on a carrier that can initiate random access.
- the processor 42 reads the program in the memory 43 to perform the following process:
- the processor 42 reads the program in the memory 43 and performs the following processes:
- the processor 42 reads the program in the memory 43 and specifically performs the following process:
- the control transceiver 41 receives the random access information of the target carrier by using the handover command;
- the processor 42 reads a program in the memory 43 to perform the following process:
- Determining a carrier that receives a paging in the target cell and determining, in the random access information, random access information of a carrier that receives a paging in the target cell, according to the determined random access information, Determining random access on the carrier that receives the paging in the target cell; or randomly selecting the carrier that can be initiated by the terminal and the network side to initiate random access, and determining the selected carrier from the random access information Random access information, and initiate random access on the selected carrier according to the determined random access information.
- the network side device is further provided in the embodiment of the present invention.
- the principle of the device is similar to the method embodiment shown in FIG. 2, and the implementation of the device can be implemented by referring to the method. It will not be repeated here.
- a network side device where the network side device includes:
- the sending module 51 is configured to send random access information of a carrier that can initiate random access to the terminal, where the carrier that can initiate random access includes a primary carrier and a secondary carrier;
- the receiving module 52 is configured to receive random access of the terminal on any carrier that can initiate random access.
- the sending module 51 is specifically configured to:
- the random access information of the target carrier configured by the network side device for the terminal is sent to the terminal by using a handover command.
- another network side device comprising: a transceiver 61, and at least one processor 62 connected to the transceiver 61, wherein:
- the processor 62 is configured to read the program in the memory 63 and perform the following process:
- the control transceiver 61 sends the random access information of the carrier that can initiate the random access to the terminal, where the carrier that can initiate the random access includes the primary carrier and the secondary carrier;
- the transceiver 61 is configured to receive and transmit data under the control of the processor 62.
- the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 62 and various circuits of memory represented by memory 63.
- the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
- the bus interface provides an interface.
- Transceiver 61 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
- the processor 62 is responsible for managing the bus architecture and general processing, as well as providing various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
- the memory 63 can store data used by the processor 62 when performing operations.
- the processor 62 can be a CPU, an ASIC, an FPGA, or a CPLD.
- the processor 62 reads the program in the memory 63, and specifically performs the following process:
- the control transceiver 61 sends the random access information of the carrier that can initiate the random access to the terminal by using the system information of the primary carrier in the cell; or
- the control transceiver 61 transmits the random access information of the target carrier configured by the network side device to the terminal to the terminal by using a handover command.
- embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
- computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
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Abstract
本发明公开了一种随机接入方法和设备,用于解决NB-IoT支持多载波操作,而UE只能在主载波上发起随机接入,导致了***整体的随机接入容量受限的问题。方法包括:终端接收可发起随机接入的载波的随机接入信息,所述可发起随机接入的载波包括主载波和辅载波;所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入。采用本发明实施例的方案不仅可以在主载波上发起随机接入,也可以在辅载波上发起的随机接入,从而提高了***整体的随机接入容量,可以为海量的NB-IoT终端更好的提供服务。
Description
本申请要求在2016年8月12日提交中国专利局、申请号为201610664934.4、发明名称为“一种随机接入方法和设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本发明涉及通信技术领域,特别涉及一种随机接入方法和设备。
窄带物联网(Narrow Band Internet of Things,简称NB-IoT)工作阶段(Work Item,简称WI)在3GPP版本13(Release 13,简称Rel 13)阶段通过并启动。窄带互联网WI阶段的目标是对蜂窝物联网(Cellular Internet of Things,简称CIoT)的无线接入进行技术标准化,基于长期演进(Long Term Evolution,简称LTE)/长期演进增强(Long Term Evolution-Advanced,简称LTE-A)技术进行扩展,主要考虑的网络特性和目标是:增强室内覆盖,支持大量低速设备接入,低时延敏感性,降低设备成本,降低设备功耗,优化网络架构等。其中,NB-IoT通信可能具有的特性包括:
NB-IoT终端具有低移动性;
NB-IoT终端与网络侧进行的数据传输对实时性要求不高;
NB-IoT终端能量受限,要求极低的功率消耗;
NB-IoT终端和网络侧之间只进行小数据量的信息传输;
NB-IoT终端具有低实现复杂度,等等。
一个NB-IoT终端可以具有上述的一个或多个特性。
为了减轻小区负荷,NB-IoT支持多载波操作。多载波操作下,载波分为主载波(也称为锚定(anchor)载波)和辅载波(也称为非锚定(non-anchor)载波)。其中,主载波上用户设备(User Equipment,简称UE;也称为终端)可以接收窄带物理广播信道(Narrow band Physical Broadcast Channel,简称NPBCH),窄带主同步信号(Narrow band Primary Synchronization Signal,简称NPSS),窄带辅同步信号(Narrow band Secondary Synchronization Signal,简称NSSS)和***消息块(System Information Block,简称SIB)传输,辅载波上R13UE当前只期望窄带物理下行控制信道(Narrow Band-Physical Downlink Control Channel,简称NB-PDCCH)/窄带下行共享物理信道(Narrow Band-Physical Downlink Shared Channel,简称NB-PDSCH),和/或窄带传输物理上行共享信道(Narrow Band-Physical Uplink Shared Channel,简称NB-PUSCH)。NB-IoT终端由于能力受限,不能同时在多个载波上工作。R13中,随机接入只能在主载波上发起,当网络侧配置连接态
UE工作在辅载波时,该UE后续将一直工作在该辅载波,直到进入空闲态,或者需要在连接态发起随机接入,或者被分配到另外一个载波。
NB-IoT支持多载波操作,而UE只能在主载波上发起随机接入,导致了***整体的随机接入容量受限,无法为海量的NB-IoT终端更好的提供服务。
发明内容
本发明实施例提供了一种随机接入方法和设备,用于解决NB-IoT支持多载波操作,而UE只能在主载波上发起随机接入,导致了***整体的随机接入容量受限的问题。
第一方面,提供了一种随机接入方法,所述方法包括:
终端接收可发起随机接入的载波的随机接入信息,所述可发起随机接入的载波包括主载波和辅载波;
所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入。
其中,所述随机接入信息包括以下信息中的至少一种:可发起随机接入的载波的属性信息、可发起随机接入的载波的随机接入信道配置信息、以及可发起随机接入的载波的物理随机接入信道配置信息。
一种可能的实施方式中,所述随机接入信息还包括:
用于指示随机接入信道配置信息和/或物理随机接入信道配置信息与可发起随机接入的载波之间的对应关系的标识信息。
一种可能的实施方式中,所述随机接入信息还包括:
用于指示可发起随机接入的辅载波的随机接入信道配置信息与主载波的随机接入信道配置信息是否相同的位图标识,和/或用于指示可发起随机接入的辅载波的物理随机接入信道配置信息与主载波的物理随机接入信道配置信息是否相同的位图标识;
或者
用于指示可发起随机接入的辅载波的随机接入信道配置信息和物理随机接入信道配置信息是否与主载波的随机接入信道配置信息和物理随机接入信道配置信息相同的位图标识。
一种可能的实施方式中,可发起随机接入的载波的属性信息包括以下信息中的至少一种:
可发起随机接入的载波的下行工作频点和/或上行工作频点、可发起随机接入的载波的索引、可发起随机接入的载波的下行可用子帧的位图配置信息、可发起随机接入的载波的下行间隔配置、以及可发起随机接入的载波的带内载波信息。
一种可能的实施方式中,可发起随机接入的载波的随机接入信道配置信息包括以下
信息中的至少一种:
随机接入序列的最大传输次数、功率递增参数、随机接入信道列表、以及无线资源控制RRC连接建立失败时的小区选择或重选的附加偏置。
一种可能的实施方式中,可发起随机接入的载波的物理随机接入信道配置信息包括以下信息中的至少一种:
物理随机接入信道的循环前缀长度、参考信号接收电平阈值的信息列表、以及物理随机接入信道的参数列表;
其中,所述参数列表中包括物理随机接入信道的周期、物理随机接入信道的初始时间、物理随机接入信道的子载波偏置、以及物理随机接入信道的子载波个数中的至少一个参数。
基于上述任一实施例,一种可能的实施方式中,若所述终端处于RRC空闲态、所述终端需要建立RRC连接、或所述终端恢复RRC连接;所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入,包括:
所述终端确定接收寻呼的载波;
所述终端从所述随机接入信息中,确定所述接收寻呼的载波的随机接入信息,并根据所述接收寻呼的载波的随机接入信息,在所述接收寻呼的载波上,发起随机接入。
一种可能的实施方式中,所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入,包括:
所述终端在任一可发起随机接入的载波上的物理下行控制信道PDCCH上接收到用于指示终端发起随机接入的指示信令;
所述终端从所述随机接入信息中,确定所述任一可发起随机接入的载波的随机接入信息,并根据所述任一可发起随机接入的载波的随机接入信息,在所述任一可发起随机接入的载波上,发起随机接入。
一种可能的实施方式中,若所述终端处于RRC连接态、或所述终端有上行数据到达需要发起随机接入;所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入,包括:
所述终端从所述随机接入信息中,确定网络侧为所述终端配置的辅载波的随机接入信息,并根据所确定的随机接入信息,在网络侧为所述终端配置的辅载波上,发起随机接入。
一种可能的实施方式中,所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入之前,还包括:所述终端根据网络侧发送的切换命令,确定网络侧配置的目标小区和目标载波;
所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入,包括:所述终端根据所述目标载波的随机接入信息,在所述目标载波上,发起在
所述目标小区的随机接入。
该方式中,所述终端接收可发起随机接入的载波的随机接入信息,包括:
所述终端通过所述切换命令,接收所述目标载波的随机接入信息;或者
所述终端接收所述目标小区中可发起随机接入的载波的随机接入信息,并从所述随机接入信息中,确定所述目标载波的随机接入信息。
一种可能的实施方式中,若所述终端处于RRC连接态且移动到当前小区的边缘;或者所述终端处于RRC连接重建状态;
所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入之前,还包括:所述终端确定目标小区;
所述终端接收可发起随机接入的载波的随机接入信息,包括:所述终端接收所述目标小区中可发起随机接入的载波的随机接入信息;
所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入,包括:
所述终端确定所述目标小区中接收寻呼的载波,从在所述随机接入信息中,确定所述目标小区中接收寻呼的载波的随机接入信息,根据所确定的随机接入信息,在所述目标小区中接收寻呼的载波上,发起随机接入;或者
所述终端随机选择所述终端和网络侧均支持的可发起随机接入的载波,从所述随机接入信息中,确定所选择的载波的随机接入信息,并根据所确定的随机接入信息,在所选择的载波上发起随机接入。
第二方面,提供了一种随机接入方法,所述方法包括:
网络侧将可发起随机接入的载波的随机接入信息,发送给终端,所述可发起随机接入的载波包括主载波和辅载波;
网络侧在任一可发起随机接入的载波上,接收终端的随机接入。
其中,可发起随机接入的载波的随机接入信息请参见第一方面中的相关描述,此处不再赘述。
一种可能的实施方式中,网络侧将可发起随机接入的载波的随机接入信息,发送给终端,包括:
网络侧通过所述小区内的主载波的***信息,将可发起随机接入的载波的随机接入信息,发送给终端;或者
网络侧通过切换命令,将网络侧为所述终端配置的目标载波的随机接入信息,发送给所述终端。
第三方面,提供了一种终端,所述终端包括:
接收模块,用于接收可发起随机接入的载波的随机接入信息,所述可发起随机接入的
载波包括主载波和辅载波;
接入模块,用于根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入。
其中,可发起随机接入的载波的随机接入信息请参见第一方面中的相关描述,此处不再赘述。
一种可能的实施方式中,所述接入模块具体用于:
在任一可发起随机接入的载波上的物理下行控制信道PDCCH上接收到用于指示终端发起随机接入的指示信令;
从所述随机接入信息中,确定所述任一可发起随机接入的载波的随机接入信息,并根据所述任一可发起随机接入的载波的随机接入信息,在所述任一可发起随机接入的载波上,发起随机接入。
一种可能的实施方式中,若所述终端处于RRC连接态、或所述终端有上行数据到达需要发起随机接入;所述接入模块具体用于:
从所述随机接入信息中,确定网络侧为所述终端配置的辅载波的随机接入信息,并根据所确定的随机接入信息,在网络侧为所述终端配置的辅载波上,发起随机接入。
一种可能的实施方式中,所述接入模块具体用于:
根据网络侧发送的切换命令,确定网络侧配置的目标小区和目标载波;根据所述目标载波的随机接入信息,在所述目标载波上,发起在所述目标小区的随机接入。
该方式中,所述接收模块具体用于:
通过所述切换命令,接收所述目标载波的随机接入信息;或者
接收所述目标小区中可发起随机接入的载波的随机接入信息,并从所述随机接入信息中,确定所述目标载波的随机接入信息。
一种可能的实施方式中,若所述终端处于RRC连接态且移动到当前小区的边缘;或者所述终端处于RRC连接重建状态;所述接入模块具体用于:确定目标小区;
确定所述目标小区中接收寻呼的载波,从在所述随机接入信息中,确定所述目标小区中接收寻呼的载波的随机接入信息,根据所确定的随机接入信息,在所述目标小区中接收寻呼的载波上,发起随机接入;或者随机选择所述终端和网络侧均支持的可发起随机接入的载波,从所述随机接入信息中,确定所选择的载波的随机接入信息,并根据所确定的随机接入信息,在所选择的载波上发起随机接入;
所述接收模块具体用于:接收所述目标小区中可发起随机接入的载波的随机接入信息。
第四方面,提供了一种终端,所述终端包括收发机、以及与所述收发机连接的至少一个处理器,其中:
所述处理器,用于读取存储器中的程序,执行下列过程:
通过所述收发机接收可发起随机接入的载波的随机接入信息,所述可发起随机接入的载波包括主载波和辅载波;根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入;
所述收发机,用于在所述处理器的控制下接收和发送数据。
其中,可发起随机接入的载波的随机接入信息请参见第一方面中的相关描述,此处不再赘述。
一种可能的实施方式中,若所述终端处于RRC空闲态、所述终端需要建立RRC连接、或所述终端恢复RRC连接;所述处理器读取所述存储器中的程序,具体执行下列过程:
确定接收寻呼的载波;从所述随机接入信息中,确定所述接收寻呼的载波的随机接入信息,并根据所述接收寻呼的载波的随机接入信息,在所述接收寻呼的载波上,发起随机接入。
一种可能的实施方式中,所述处理器读取所述存储器中的程序,具体执行下列过程:
通过所述收发机在任一可发起随机接入的载波上的物理下行控制信道PDCCH上接收到用于指示终端发起随机接入的指示信令;
从所述随机接入信息中,确定所述任一可发起随机接入的载波的随机接入信息,并根据所述任一可发起随机接入的载波的随机接入信息,在所述任一可发起随机接入的载波上,发起随机接入。
一种可能的实施方式中,若所述终端处于RRC连接态、或所述终端有上行数据到达需要发起随机接入;所述处理器读取所述存储器中的程序,具体执行下列过程:
从所述随机接入信息中,确定网络侧为所述终端配置的辅载波的随机接入信息,并根据所确定的随机接入信息,在网络侧为所述终端配置的辅载波上,发起随机接入。
一种可能的实施方式中,所述处理器读取所述存储器中的程序,具体执行下列过程:
根据网络侧发送的切换命令,确定网络侧配置的目标小区和目标载波;根据所述目标载波的随机接入信息,在所述目标载波上,发起在所述目标小区的随机接入。
该方式中,所述处理器读取所述存储器中的程序,具体执行下列过程:
控制所述收发机通过所述切换命令,接收所述目标载波的随机接入信息;
或者
通过所述收发机接收所述目标小区中可发起随机接入的载波的随机接入信息,并从所述随机接入信息中,确定所述目标载波的随机接入信息。
一种可能的实施方式中,若所述终端处于RRC连接态且移动到当前小区的边缘;或者所述终端处于RRC连接重建状态;所述处理器读取所述存储器中的程序,具体执行下列过程:
确定目标小区;
通过所述收发机接收所述目标小区中可发起随机接入的载波的随机接入信息;
确定所述目标小区中接收寻呼的载波,从在所述随机接入信息中,确定所述目标小区中接收寻呼的载波的随机接入信息,根据所确定的随机接入信息,在所述目标小区中接收寻呼的载波上,发起随机接入;或者随机选择所述终端和网络侧均支持的可发起随机接入的载波,从所述随机接入信息中,确定所选择的载波的随机接入信息,并根据所确定的随机接入信息,在所选择的载波上发起随机接入。
第五方面,提供了一种网络侧设备,所述网络侧设备包括:
发送模块,用于将可发起随机接入的载波的随机接入信息,发送给终端,所述可发起随机接入的载波包括主载波和辅载波;
接收模块,用于在任一可发起随机接入的载波上,接收终端的随机接入。
其中,可发起随机接入的载波的随机接入信息请参见第一方面中的相关描述,此处不再赘述。
一种可能的实施方式中,所述发送模块具体用于:
通过所述小区内的主载波的***信息,将可发起随机接入的载波的随机接入信息,发送给终端;或者
通过切换命令,将所述网络侧设备为所述终端配置的目标载波的随机接入信息,发送给所述终端。
第六方面,提供了一种网络侧设备,所述网络侧设备包括:收发机、以及与所述收发机连接的至少一个处理器,其中:
所述处理器,用于读取存储器中的程序,执行下列过程:
控制所述收发机将可发起随机接入的载波的随机接入信息,发送给终端,所述可发起随机接入的载波包括主载波和辅载波;
通过所述收发机在任一可发起随机接入的载波上,接收终端的随机接入;
所述收发机,用于在所述处理器的控制下接收和发送数据。
其中,可发起随机接入的载波的随机接入信息请参见第一方面中的相关描述,此处不再赘述。
一种可能的实施方式中,所述处理器读取所述存储器中的程序,具体执行下列过程:
控制所述收发机通过所述小区内的主载波的***信息,将可发起随机接入的载波的随机接入信息,发送给终端;或者
控制所述收发机通过切换命令,将所述网络侧设备为所述终端配置的目标载波的随机接入信息,发送给所述终端。
第七方面,提供了一种计算机可读存储介质,其中存储有可执行的程序代码,该程序
代码用以实现第一方面所述的方法。
第八方面,提供了一种计算机可读存储介质,其中存储有可执行的程序代码,该程序代码用以实现第二方面所述的方法。
本发明实施例提供的方法和设备中,终端先接收可发起随机接入的载波的随机接入信息,再根据接收到的随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入,采用本发明实施例的方案不仅可以在主载波上发起随机接入,也可以在辅载波上发起的随机接入,从而提高了***整体的随机接入容量,可以为海量的NB-IoT终端更好的提供服务。
图1为本发明实施例提供的一种终端侧的随机接入方法的流程示意图;
图2为本发明实施例提供的一种网络侧的随机接入方法的流程示意图;
图3为本发明实施例提供的一种终端的示意图;
图4为本发明实施例提供的另一种终端的示意图;
图5为本发明实施例提供的一种网络侧设备的示意图;
图6为本发明实施例提供的另一种网络侧设备的示意图。
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本发明实施例中涉及的“多个”、“多套”均表示两个或两个以上。
下面结合说明书附图对本发明实施例作进一步详细描述。应当理解,此处所描述的实施例仅用于说明和解释本发明,并不用于限定本发明。
图1所示的实施例中,提供了一种终端侧的随机接入方法,包括:
S11、终端接收可发起随机接入的载波的随机接入信息,所述可发起随机接入的载波包括主载波和辅载波。
其中,可发起随机接入的辅载波的数量为一个或多个。
可选的,主载波的随机接入信息和可发起随机接入的辅载波的随机接入信息可以通过一条***信息同时发送,也可以通过多条***信息分别发送。
S12、所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入。
本发明实施例中,终端先接收可发起随机接入的载波的随机接入信息,再根据接收到的随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入,采用本发明实施例的方案不仅可以在主载波上发起随机接入,也可以在辅载波上发起的随机接入,从而提高了***整体的随机接入容量,可以为海量的NB-IoT终端更好的提供服务。
本发明实施例中,所述随机接入信息包括以下信息中的至少一种:
可发起随机接入的载波的属性信息、可发起随机接入的载波的随机接入信道配置信息、可发起随机接入的载波的物理随机接入信道配置信息。
本发明实施例中,每个可发起随机接入的载波的属性信息包括以下信息中的至少一种:
可发起随机接入的载波的下行工作频点和/或上行工作频点、可发起随机接入的载波的索引(index)、可发起随机接入的载波的下行可用子帧的位图(bitmap)配置信息、可发起随机接入的载波的下行间隔(gap)配置、以及可发起随机接入的载波的带内(inband)载波信息。
其中,可发起随机接入的辅载波的索引还可以采用隐式方式通知给终端,例如,通过辅载波配置列表隐式通知终端辅载波的索引,即辅载波的索引按照该辅载波在辅载波配置列表顺序中的排列顺序作为索引。
本发明实施例中,每个可发起随机接入的载波的随机接入信道配置信息为一套或多套,每套随机接入信道配置信息包括以下信息中的至少一种:
随机接入序列的最大传输次数、功率递增参数、随机接入信道列表、以及无线资源控制(Radio Resource Control,简称RRC)连接建立失败时的小区选择或重选的附加偏置。
本发明实施例中,每个可发起随机接入的载波的物理随机接入信道配置信息为一套或多套,每套物理随机接入信道配置信息包括以下信息中的至少一种:
物理随机接入信道的循环前缀(CP)长度、参考信号接收电平阈值的信息列表、以及物理随机接入信道的参数列表。
其中,物理随机接入信道的参数列表对应一个或多个物理随机接入信道的参数,该参数列表中包括但不限于以下至少一种参数:物理随机接入信道的周期、初始时间、子载波偏置、子载波个数等。
一种可能的实施方式中,所述随机接入信息中还包括:
用于指示随机接入信道配置信息和/或物理随机接入信道配置信息与可发起随机接入的载波之间的对应关系的标识信息。
一种可能的实施方式中,所述随机接入信息还包括:
用于指示可发起随机接入的辅载波的随机接入信道配置信息与主载波的随机接入信道配置信息是否相同的位图(bitmap)标识,和/或用于指示可发起随机接入的辅载波的物
理随机接入信道配置信息与主载波的物理随机接入信道配置信息是否相同的位图(bitmap)标识;
或者
用于指示可发起随机接入的辅载波的随机接入信道配置信息和物理随机接入信道配置信息是否与主载波的随机接入信道配置信息和物理随机接入信道配置信息相同的位图(bitmap)标识。
举例说明,以用于指示可发起随机接入的辅载波的随机接入信道配置信息与主载波的随机接入信道配置信息是否相同的位图(bitmap)标识为例,该位图标识中每个比特对应一个辅载波,可以通过比特值为“0”表示该比特对应的辅载波的随机接入信道配置信息与主载波的随机接入信道配置信息不同,通过比特值为“1”表示该比特对应的辅载波的随机接入信道配置信息与主载波的随机接入信道配置信息相同。
基于上述任一实施例,S12中所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入,在不同场景下,具体实现方式也不同,具体包括以下几种可能的实现方式:
方式1、该方式应用的场景为所述终端处于RRC空闲态、所述终端需要建立RRC连接、或所述终端恢复RRC连接。
该方式中,S11具体包括:
所述终端通过***广播,例如所述终端当前所在小区内的主载波的***信息,接收网络侧发送的可发起随机接入的载波的随机接入信息。
本发明实施例中,***信息包括主信息块(Master Information Block,简称MIB)和/或***信息块(System Information Block,简称SIB)。
该方式中,S12具体包括:
所述终端确定接收寻呼的载波;
所述终端从所述随机接入信息中,确定所述接收寻呼的载波的随机接入信息,并根据所述接收寻呼的载波的随机接入信息,在所述接收寻呼的载波上,发起随机接入。
具体的,所述终端可以根据所述终端当前所在小区内的主载波的***信息,确定出接收寻呼的载波。
方式2、该方式应用的场景为网络侧已为所述终端配置了辅载波为所述终端的工作载波,并在已配置的辅载波上的物理下行控制信道(Physical Downlink Control Channel,简称PDCCH)上指示所述终端发起随机接入。
该方式中,S11具体包括:
所述终端通过***广播,例如所述终端当前所在小区内的主载波的***信息,接收网络侧发送的可发起随机接入的载波的随机接入信息。
该方式中,S12具体包括:
所述终端在任一辅载波上的PDCCH上,接收到用于指示所述终端发起随机接入的指示信令;
所述终端从所述随机接入信息中,确定所述任一辅载波的随机接入信息,并根据所述任一辅载波的随机接入信息,在所述任一辅载波上,发起随机接入。
方式3、该方式应用的场景为网络侧已为所述终端配置了辅载波为所述终端的工作载波,若所述终端处于RRC连接态、或所述终端有上行数据到达需要发起随机接入。
该方式中,S11具体包括:
所述终端通过***广播,例如所述终端当前所在小区内的主载波的***信息,接收网络侧发送的可发起随机接入的载波的随机接入信息。
该方式中,S12具体包括:
所述终端从所述随机接入信息中,确定网络侧为所述终端配置的辅载波的随机接入信息,并根据所确定的随机接入信息,在网络侧为所述终端配置的辅载波上,发起随机接入。
方式4、该方式应用的场景为网络侧配置所述终端的切换。
该方式中,S12之前,还包括:
所述终端根据网络侧发送的切换命令,确定网络侧配置的目标小区和目标载波。
其中,所述切换命令指示网络侧为所述终端配置的目标小区以及目标小区上的目标载波。
该方式中,S12具体包括:所述终端根据所述目标载波的随机接入信息,在所述目标载波上,发起在所述目标小区的随机接入。
该方式中,所述终端获取所述目标载波的随机接入信息,包括以下两种可能的实现方式:
方式41:所述切换命令中携带所述目标载波的随机接入信息。
该方式中,S11具体包括:
所述终端通过所述切换命令,接收所述目标载波的随机接入信息。
方式42:所述切换命令中未携带所述目标载波的随机接入信息。
该方式中,S11具体包括:
所述终端接收所述目标小区中可发起随机接入的载波的随机接入信息。
进一步,所述终端从接收到的随机接入信息中,确定所述目标载波的随机接入信息。
具体的,所述终端通过***广播,例如所述目标小区内的主载波的***信息,接收网络侧发送的所述目标小区中可发起随机接入的载波的随机接入信息。
方式5、该方式应用的场景为所述终端处于RRC连接态且移动到当前小区的边缘;或者所述终端处于RRC连接重建状态。
该方式中,S12之前,还包括:所述终端确定目标小区。
具体的,若所述终端处于RRC连接态且移动到当前小区的边缘,则所述终端通过小区重选过程,确定所述目标小区;若所述终端处于RRC连接重建状态,则所述终端通过小区选择过程,确定所述目标小区。
该方式中,S11具体包括:所述终端接收所述目标小区中可发起随机接入的载波的随机接入信息。
具体的,所述终端通过***广播,如所述目标小区内的主载波的***信息,接收网络侧发送的所述目标小区中可发起随机接入的载波的随机接入信息。
该方式中,S12具体包括以下两种可能的实施方式:
方式51、所述终端确定所述目标小区中接收寻呼的载波,从在所述随机接入信息中,确定所述目标小区中接收寻呼的载波的随机接入信息,根据所确定的随机接入信息,在所述目标小区中接收寻呼的载波上,发起随机接入。
方式52、所述终端随机选择所述终端和网络侧均支持的可发起随机接入的载波,从所述随机接入信息中,确定所选择的载波的随机接入信息,并根据所确定的随机接入信息,在所选择的载波上发起随机接入。
该方式中,若所述终端和网络侧均支持的可发起随机接入的载波的数量为至少两个,则所述终端从所述至少两个可发起随机接入的载波中,随机选择一个载波发起随机接入。当然,也可以采用其他方式选择发起随机接入的载波,例如,所述终端可以选择信号强度最好的载波发起随机接入;等等。本发明实施例中不对具体选择方式进行限定。
图2所示实施例中,提供了一种网络侧的随机接入方法,包括:
S21、网络侧将可发起随机接入的载波的随机接入信息,发送给终端,所述可发起随机接入的载波包括主载波和辅载波;
S22、网络侧在任一可发起随机接入的载波上,接收终端的随机接入。
本发明实施例中,可发起随机接入的载波的随机接入信息具体参见图1所示实施例中的相关描述,此处不再赘述。
本发明实施例中,若网络侧配置终端进行小区切换,S22具体包括以下可能的实现方式:
网络侧通过***广播,将可发起随机接入的载波的随机接入信息,发送给终端,例如,网络侧通过所述小区内的主载波上的***信息发送可发起随机接入的载波的随机接入信息;或者
网络侧通过切换命令,将网络侧为所述终端配置的目标载波的随机接入信息,发送给所述终端。
下面通过几个具体实施例,对本发明实施例提供的随机接入方法进行详细说明。
实施例1:本实施例描述了终端处于RRC空闲态,建立或者恢复RRC连接时的随机接入过程,具体包括:
1)终端接收网络侧在***广播中发送的可发起随机接入的载波的随机接入信息并储存;
2)当终端需要发起初始接入时,例如接收到寻呼或者需要发送数据或信令时,若终端被允许接入网络,终端在接收寻呼的载波上发起随机接入流程,否则不发起随机接入流程。
实施例2:本实施例描述了网络侧通过PDCCH命令指示终端发起随机接入流程时,终端的随机接入过程。具体包括:
1)终端接收网络侧在***广播中发送的可发起随机接入的载波的随机接入信息并储存;
2)网络侧配置辅载波给终端,且配置成功;
3)当无需终端更新***消息时,网络侧在已配置的辅载波上的PDCCH上指示终端发起随机接入流程;
4)终端在接收到PDCCH的辅载波上发起随机接入流程。
实施例3:本实施例描述了终端处于RRC连接态,且有上行数据到达需要发起随机接入流程时,终端的随机接入过程。具体包括:
1)终端接收网络侧在***广播中发送的可发起随机接入的载波的随机接入信息并储存;
2)网络侧配置辅载波给终端,且配置成功;
3)当无需终端更新***消息时,终端在网络侧配置的辅载波上发起随机接入流程。
实施例4:本实施例描述了网络侧配置的切换下,终端的随机接入过程。具体包括:
1)网络侧配置终端切换到目标小区;
具体的,网络侧发送切换命令以指示目标小区的相关信息,所述目标小区的相关信息包括但不限于以下信息中的至少一种:
目标小区的标识、目标载波的标识(如目标载波的频率)、目标载波的随机接入信息。其中,目标载波可以是所述目标小区的主载波或者辅载波。
2)若网络侧配置的目标载波为目标小区的主载波,终端在目标小区的主载波上读取***信息并储存,并在主载波上发起随机接入流程;
若网络侧配置的目标载波为目标小区的辅载波,则进一步:
若所述目标小区的相关信息包括目标载波的随机接入信息,则终端根据该随机接入信息,在目标载波上发起随机接入流程;
若所述目标小区的相关信息未包括目标载波的随机接入信息,则终端接收网络侧在目
标小区内的主载波上读取该目标小区内可发起随机接入的一个或多个辅载波的随机接入信息并储存,以获取目标载波的随机接入信息,并根据目标载波的随机接入信息,在目标载波上发起随机接入流程。
实施例5:本实施例描述了终端处于RRC连接态,且移动到了小区边缘,时,终端的随机接入的过程。具体包括:
1)终端处于RRC连接态,通过小区重选,选择目标小区;
2)终端在目标小区的主载波读取***信息并储存;
3)终端在目标小区的主载波上发起随机接入流程。
实施例6:本实施例描述了终端处于RRC连接态,且移动到了小区边缘,时,终端的随机接入的过程。具体包括:
1)终端处于RRC连接态,通过小区重选,选择目标小区;
2)终端在目标小区的主载波读取***信息并储存;
3)终端接收网络侧在目标小区的***广播中发送的可发起随机接入的载波的随机接入信息并储存,并根据目标小区的***信息,确定终端接收寻呼的载波,在该载波上发起随机接入流程。
实施例7:本实施例描述了终端处于RRC连接态,且移动到了小区边缘,时,终端的随机接入的过程。具体包括:
1)终端处于RRC连接态,通过小区重选,选择目标小区;
2)终端在目标小区的主载波读取***信息并储存;
3)终端接收网络侧在目标小区的***广播中发送的可发起随机接入的载波的随机接入信息并储存,终端随机选择一个终端和网络侧同时支持的载波,发起随机接入流程。
实施例8:本实施例描述了终端RRC连接重建时,终端的随机接入的过程。具体包括:
1)终端执行小区选择,选择目标小区;
2)终端在目标小区的主载波读取***信息并储存,并根据主载波上广播的接入控制信息判断是否接入该小区,当终端可以接入时,执行下述3),否则返回执行小区选择,选择其他小区;
3)终端读取网络侧在目标小区的广播中发送的可发起随机接入的载波的随机接入信息并储存,并根据目标小区的***信息,确定终端接收寻呼的载波,在该载波上发起随机接入流程。
上述方法处理流程可以用软件程序实现,该软件程序可以存储在存储介质中,当存储的软件程序被调用时,执行上述方法步骤。
基于同一发明构思,本发明实施例中还提供了一种终端,由于该终端解决问题的原理与上述图1所示的方法实施例相似,因此该终端的实施可以参见方法的实施,重复之处不
再赘述。
图3所示的实施例中,提供了一种终端,所述终端包括:
接收模块31,用于接收可发起随机接入的载波的随机接入信息,所述可发起随机接入的载波包括主载波和辅载波;
接入模块32,用于根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入。
其中,可发起随机接入的载波的随机接入信息请参见图1所示实施例中的相关描述,此处不再赘述。
一种可能的实施方式中,若所述终端处于RRC空闲态、所述终端需要建立RRC连接、或所述终端恢复RRC连接;所述接入模块32具体用于:
确定接收寻呼的载波;从所述随机接入信息中,确定所述接收寻呼的载波的随机接入信息,并根据所述接收寻呼的载波的随机接入信息,在所述接收寻呼的载波上,发起随机接入。
一种可能的实施方式中,所述接入模块32具体用于:
在任一可发起随机接入的载波上的物理下行控制信道PDCCH上接收到用于指示终端发起随机接入的指示信令;
从所述随机接入信息中,确定所述任一可发起随机接入的载波的随机接入信息,并根据所述任一可发起随机接入的载波的随机接入信息,在所述任一可发起随机接入的载波上,发起随机接入。
一种可能的实施方式中,若所述终端处于RRC连接态、或所述终端有上行数据到达需要发起随机接入;所述接入模块32具体用于:
从所述随机接入信息中,确定网络侧为所述终端配置的辅载波的随机接入信息,并根据所确定的随机接入信息,在网络侧为所述终端配置的辅载波上,发起随机接入。
一种可能的实施方式中,所述接入模块32具体用于:
根据网络侧发送的切换命令,确定网络侧配置的目标小区和目标载波;根据所述目标载波的随机接入信息,在所述目标载波上,发起在所述目标小区的随机接入。
该方式中,所述接收模块31具体用于:
通过所述切换命令,接收所述目标载波的随机接入信息;或者
接收所述目标小区中可发起随机接入的载波的随机接入信息,并从所述随机接入信息中,确定所述目标载波的随机接入信息。
一种可能的实施方式中,若所述终端处于RRC连接态且移动到当前小区的边缘;或者所述终端处于RRC连接重建状态;所述接入模块32具体用于:确定目标小区;
确定所述目标小区中接收寻呼的载波,从在所述随机接入信息中,确定所述目标小区
中接收寻呼的载波的随机接入信息,根据所确定的随机接入信息,在所述目标小区中接收寻呼的载波上,发起随机接入;或者随机选择所述终端和网络侧均支持的可发起随机接入的载波,从所述随机接入信息中,确定所选择的载波的随机接入信息,并根据所确定的随机接入信息,在所选择的载波上发起随机接入;
所述接收模块31具体用于:接收所述目标小区中可发起随机接入的载波的随机接入信息。
图4所示实施例中,提供了另一种终端,所述终端包括收发机41、以及与该收发机41连接的至少一个处理器42,其中:
处理器42,用于读取存储器43中的程序,执行下列过程:
通过收发机41接收可发起随机接入的载波的随机接入信息,所述可发起随机接入的载波包括主载波和辅载波;根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入;
收发机41,用于在处理器42的控制下接收和发送数据。
在图4中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器42代表的一个或多个处理器和存储器43代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机41可以是一个元件,也可以是多个元件,比如多个接收器和发送器,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口44还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。处理器42负责管理总线架构和通常的处理,还可以提供各种功能,包括定时,***接口,电压调节、电源管理以及其他控制功能。存储器43可以存储处理器42在执行操作时所使用的数据。
可选的,处理器42可以是中央处埋器(CPU)、专用集成电路(Application Specific Integrated Circuit,简称ASIC)、现场可编程门阵列(Field-Programmable Gate Array,简称FPGA)或CPLD复杂可编程逻辑器件(Complex Programmable Logic Device,简称CPLD)。
其中,可发起随机接入的载波的随机接入信息请参见图1所示实施例中的相关描述,此处不再赘述。
一种可能的实施方式中,若所述终端处于RRC空闲态、所述终端需要建立RRC连接、或所述终端恢复RRC连接;处理器42读取存储器43中的程序,具体执行下列过程:
确定接收寻呼的载波;从所述随机接入信息中,确定所述接收寻呼的载波的随机接入信息,并根据所述接收寻呼的载波的随机接入信息,在所述接收寻呼的载波上,发起随机
接入。
一种可能的实施方式中,处理器42读取存储器43中的程序,具体执行下列过程:
通过收发机41在任一可发起随机接入的载波上的物理下行控制信道PDCCH上接收到用于指示终端发起随机接入的指示信令;
从所述随机接入信息中,确定所述任一可发起随机接入的载波的随机接入信息,并根据所述任一可发起随机接入的载波的随机接入信息,在所述任一可发起随机接入的载波上,发起随机接入。
一种可能的实施方式中,若所述终端处于RRC连接态、或所述终端有上行数据到达需要发起随机接入;处理器42读取存储器43中的程序,具体执行下列过程:
从所述随机接入信息中,确定网络侧为所述终端配置的辅载波的随机接入信息,并根据所确定的随机接入信息,在网络侧为所述终端配置的辅载波上,发起随机接入。
一种可能的实施方式中,处理器42读取存储器43中的程序,具体执行下列过程:
根据网络侧发送的切换命令,确定网络侧配置的目标小区和目标载波;根据所述目标载波的随机接入信息,在所述目标载波上,发起在所述目标小区的随机接入。
该方式中,处理器42读取存储器43中的程序,具体执行下列过程:
控制收发机41通过所述切换命令,接收所述目标载波的随机接入信息;
或者
通过收发机41接收所述目标小区中可发起随机接入的载波的随机接入信息,并从所述随机接入信息中,确定所述目标载波的随机接入信息。
一种可能的实施方式中,若所述终端处于RRC连接态且移动到当前小区的边缘;或者所述终端处于RRC连接重建状态;处理器42读取存储器43中的程序,具体执行下列过程:
确定目标小区;
通过收发机41接收所述目标小区中可发起随机接入的载波的随机接入信息;
确定所述目标小区中接收寻呼的载波,从在所述随机接入信息中,确定所述目标小区中接收寻呼的载波的随机接入信息,根据所确定的随机接入信息,在所述目标小区中接收寻呼的载波上,发起随机接入;或者随机选择所述终端和网络侧均支持的可发起随机接入的载波,从所述随机接入信息中,确定所选择的载波的随机接入信息,并根据所确定的随机接入信息,在所选择的载波上发起随机接入。
基于同一发明构思,本发明实施例中还提供了一种网络侧设备,由于该设备解决问题的原理与上述图2所示的方法实施例相似,因此该设备的实施可以参见方法的实施,重复之处不再赘述。
图5所示实施例中,提供了一种网络侧设备,所述网络侧设备包括:
发送模块51,用于将可发起随机接入的载波的随机接入信息,发送给终端,所述可发起随机接入的载波包括主载波和辅载波;
接收模块52,用于在任一可发起随机接入的载波上,接收终端的随机接入。
其中,可发起随机接入的载波的随机接入信息请参见图1所示实施例中的相关描述,此处不再赘述。
一种可能的实施方式中,所述发送模块51具体用于:
通过所述小区内的主载波的***信息,将可发起随机接入的载波的随机接入信息,发送给终端;或者
通过切换命令,将所述网络侧设备为所述终端配置的目标载波的随机接入信息,发送给所述终端。
图6所示实施例中,提供了另一种网络侧设备,所述网络侧设备包括:收发机61、以及与该收发机61连接的至少一个处理器62,其中:
处理器62,用于读取存储器63中的程序,执行下列过程:
控制收发机61将可发起随机接入的载波的随机接入信息,发送给终端,所述可发起随机接入的载波包括主载波和辅载波;
通过收发机61在任一可发起随机接入的载波上,接收终端的随机接入;
收发机61,用于在处理器62的控制下接收和发送数据。
其中,在图6中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器62代表的一个或多个处理器和存储器63代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机61可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。处理器62负责管理总线架构和通常的处理,还可以提供各种功能,包括定时,***接口,电压调节、电源管理以及其他控制功能。存储器63可以存储处理器62在执行操作时所使用的数据。
可选的,处理器62可以是CPU、ASIC、FPGA或CPLD。
其中,可发起随机接入的载波的随机接入信息请参见图1所示实施例中的相关描述,此处不再赘述。
一种可能的实施方式中,处理器62读取存储器63中的程序,具体执行下列过程:
控制收发机61通过所述小区内的主载波的***信息,将可发起随机接入的载波的随机接入信息,发送给终端;或者
控制收发机61通过切换命令,将所述网络侧设备为所述终端配置的目标载波的随机接入信息,发送给所述终端。
本领域内的技术人员应明白,本发明的实施例可提供为方法、***、或计算机程序产品。因此,本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然,本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样,倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。
Claims (44)
- 一种随机接入方法,其特征在于,所述方法包括:终端接收可发起随机接入的载波的随机接入信息,所述可发起随机接入的载波包括主载波和辅载波;所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入。
- 根据权利要求1所述的方法,其特征在于,所述随机接入信息包括以下信息中的至少一种:可发起随机接入的载波的属性信息、可发起随机接入的载波的随机接入信道配置信息、以及可发起随机接入的载波的物理随机接入信道配置信息。
- 根据权利要求2所述的方法,其特征在于,所述随机接入信息还包括:用于指示随机接入信道配置信息和/或物理随机接入信道配置信息与可发起随机接入的载波之间的对应关系的标识信息。
- 根据权利要求2所述的方法,其特征在于,所述随机接入信息还包括:用于指示可发起随机接入的辅载波的随机接入信道配置信息与主载波的随机接入信道配置信息是否相同的位图标识,和/或用于指示可发起随机接入的辅载波的物理随机接入信道配置信息与主载波的物理随机接入信道配置信息是否相同的位图标识;或者用于指示可发起随机接入的辅载波的随机接入信道配置信息和物理随机接入信道配置信息是否与主载波的随机接入信道配置信息和物理随机接入信道配置信息相同的位图标识。
- 根据权利要求2所述的方法,其特征在于,可发起随机接入的载波的属性信息包括以下信息中的至少一种:可发起随机接入的载波的下行工作频点和/或上行工作频点、可发起随机接入的载波的索引、可发起随机接入的载波的下行可用子帧的位图配置信息、可发起随机接入的载波的下行间隔配置、以及可发起随机接入的载波的带内载波信息。
- 根据权利要求2所述的方法,其特征在于,可发起随机接入的载波的随机接入信道配置信息包括以下信息中的至少一种:随机接入序列的最大传输次数、功率递增参数、随机接入信道列表、以及无线资源控制RRC连接建立失败时的小区选择或重选的附加偏置。
- 根据权利要求2所述的方法,其特征在于,可发起随机接入的载波的物理随机接入信道配置信息包括以下信息中的至少一种:物理随机接入信道的循环前缀长度、参考信号接收电平阈值的信息列表、以及物理随 机接入信道的参数列表;其中,所述参数列表中包括物理随机接入信道的周期、物理随机接入信道的初始时间、物理随机接入信道的子载波偏置、以及物理随机接入信道的子载波个数中的至少一个参数。
- 根据权利要求1~7任一项所述的方法,其特征在于,若所述终端处于RRC空闲态、所述终端需要建立RRC连接、或所述终端恢复RRC连接;所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入,包括:所述终端确定接收寻呼的载波;所述终端从所述随机接入信息中,确定所述接收寻呼的载波的随机接入信息,并根据所述接收寻呼的载波的随机接入信息,在所述接收寻呼的载波上,发起随机接入。
- 根据权利要求1~7任一项所述的方法,其特征在于,所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入,包括:所述终端在任一可发起随机接入的载波上的物理下行控制信道PDCCH上接收到用于指示终端发起随机接入的指示信令;所述终端从所述随机接入信息中,确定所述任一可发起随机接入的载波的随机接入信息,并根据所述任一可发起随机接入的载波的随机接入信息,在所述任一可发起随机接入的载波上,发起随机接入。
- 根据权利要求1~7任一项所述的方法,其特征在于,若所述终端处于RRC连接态、或所述终端有上行数据到达需要发起随机接入;所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入,包括:所述终端从所述随机接入信息中,确定网络侧为所述终端配置的辅载波的随机接入信息,并根据所确定的随机接入信息,在网络侧为所述终端配置的辅载波上,发起随机接入。
- 根据权利要求1~7任一项所述的方法,其特征在于,所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入之前,还包括:所述终端根据网络侧发送的切换命令,确定网络侧配置的目标小区和目标载波;所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入,包括:所述终端根据所述目标载波的随机接入信息,在所述目标载波上,发起在所述目标小区的随机接入。
- 根据权利要求11所述的方法,其特征在于,所述终端接收可发起随机接入的载波的随机接入信息,包括:所述终端通过所述切换命令,接收所述目标载波的随机接入信息;或者所述终端接收所述目标小区中可发起随机接入的载波的随机接入信息,并从所述随机接入信息中,确定所述目标载波的随机接入信息。
- 根据权利要求1~7任一项所述的方法,其特征在于,若所述终端处于RRC连接态且移动到当前小区的边缘;或者所述终端处于RRC连接重建状态;所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入之前,还包括:所述终端确定目标小区;所述终端接收可发起随机接入的载波的随机接入信息,包括:所述终端接收所述目标小区中可发起随机接入的载波的随机接入信息;所述终端根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入,包括:所述终端确定所述目标小区中接收寻呼的载波,从在所述随机接入信息中,确定所述目标小区中接收寻呼的载波的随机接入信息,根据所确定的随机接入信息,在所述目标小区中接收寻呼的载波上,发起随机接入;或者所述终端随机选择所述终端和网络侧均支持的可发起随机接入的载波,从所述随机接入信息中,确定所选择的载波的随机接入信息,并根据所确定的随机接入信息,在所选择的载波上发起随机接入。
- 一种随机接入方法,其特征在于,所述方法包括:网络侧将可发起随机接入的载波的随机接入信息,发送给终端,所述可发起随机接入的载波包括主载波和辅载波;网络侧在任一可发起随机接入的载波上,接收终端的随机接入。
- 根据权利要求14所述的方法,其特征在于,所述随机接入信息包括以下信息中的至少一种:可发起随机接入的载波的属性信息、可发起随机接入的载波的随机接入信道配置信息、以及可发起随机接入的载波的物理随机接入信道配置信息。
- 根据权利要求15所述的方法,其特征在于,所述随机接入信息还包括:用于指示随机接入信道配置信息和/或物理随机接入信道配置信息与可发起随机接入的载波之间的对应关系的标识信息。
- 根据权利要求15所述的方法,其特征在于,所述随机接入信息还包括:用于指示可发起随机接入的辅载波的随机接入信道配置信息与主载波的随机接入信道配置信息是否相同的位图标识,和/或用于指示可发起随机接入的辅载波的物理随机接入信道配置信息与主载波的物理随机接入信道配置信息是否相同的位图标识;或者用于指示可发起随机接入的辅载波的随机接入信道配置信息和物理随机接入信道配置信息是否与主载波的随机接入信道配置信息和物理随机接入信道配置信息相同的位图标识。
- 根据权利要求15所述的方法,其特征在于,可发起随机接入的载波的属性信息 包括以下信息中的至少一种:可发起随机接入的载波的下行工作频点和/或上行工作频点、可发起随机接入的载波的索引、可发起随机接入的载波的下行可用子帧的位图配置信息、可发起随机接入的载波的下行间隔配置、以及可发起随机接入的载波的带内载波信息。
- 根据权利要求15所述的方法,其特征在于,可发起随机接入的载波的随机接入信道配置信息包括以下信息中的至少一种:随机接入序列的最大传输次数、功率递增参数、随机接入信道列表、以及无线资源控制RRC连接建立失败时的小区选择或重选的附加偏置。
- 根据权利要求15所述的方法,其特征在于,可发起随机接入的载波的物理随机接入信道配置信息包括以下信息中的至少一种:物理随机接入信道的循环前缀长度、参考信号接收电平阈值的信息列表、以及物理随机接入信道的参数列表;其中,所述参数列表中包括物理随机接入信道的周期、物理随机接入信道的初始时间、物理随机接入信道的子载波偏置、以及物理随机接入信道的子载波个数中的至少一个参数。
- 根据权利要求14~20任一项所述的方法,其特征在于,网络侧将可发起随机接入的载波的随机接入信息,发送给终端,包括:网络侧通过所述小区内的主载波的***信息,将可发起随机接入的载波的随机接入信息,发送给终端;或者网络侧通过切换命令,将网络侧为所述终端配置的目标载波的随机接入信息,发送给所述终端。
- 一种终端,其特征在于,所述终端包括:接收模块,用于接收可发起随机接入的载波的随机接入信息,所述可发起随机接入的载波包括主载波和辅载波;接入模块,用于根据所述随机接入信息,从可发起随机接入的载波中,选择一个载波发起随机接入。
- 根据权利要求22所述的终端,其特征在于,所述随机接入信息包括以下信息中的至少一种:可发起随机接入的载波的属性信息、可发起随机接入的载波的随机接入信道配置信息、以及可发起随机接入的载波的物理随机接入信道配置信息。
- 根据权利要求23所述的终端,其特征在于,所述随机接入信息还包括:用于指示随机接入信道配置信息和/或物理随机接入信道配置信息与可发起随机接入的载波之间的对应关系的标识信息。
- 根据权利要求23所述的终端,其特征在于,所述随机接入信息还包括:用于指示可发起随机接入的辅载波的随机接入信道配置信息与主载波的随机接入信道配置信息是否相同的位图标识,和/或用于指示可发起随机接入的辅载波的物理随机接入信道配置信息与主载波的物理随机接入信道配置信息是否相同的位图标识;或者用于指示可发起随机接入的辅载波的随机接入信道配置信息和物理随机接入信道配置信息是否与主载波的随机接入信道配置信息和物理随机接入信道配置信息相同的位图标识。
- 根据权利要求23所述的终端,其特征在于,可发起随机接入的辅载波的属性信息包括以下信息中的至少一种:可发起随机接入的载波的下行工作频点和/或上行工作频点、可发起随机接入的载波的索引、可发起随机接入的载波的下行可用子帧的位图配置信息、可发起随机接入的载波的下行间隔配置、以及可发起随机接入的载波的带内载波信息。
- 根据权利要求23所述的终端,其特征在于,可发起随机接入的载波的随机接入信道配置信息包括以下信息中的至少一种:随机接入序列的最大传输次数、功率递增参数、随机接入信道列表、以及无线资源控制RRC连接建立失败时的小区选择或重选的附加偏置。
- 根据权利要求23所述的终端,其特征在于,可发起随机接入的载波的物理随机接入信道配置信息包括以下信息中的至少一种:物理随机接入信道的循环前缀长度、参考信号接收电平阈值的信息列表、以及物理随机接入信道的参数列表;其中,所述参数列表中包括物理随机接入信道的周期、物理随机接入信道的初始时间、物理随机接入信道的子载波偏置、以及物理随机接入信道的子载波个数中的至少一个参数。
- 根据权利要求22~28任一项所述的终端,其特征在于,若所述终端处于RRC空闲态、所述终端需要建立RRC连接、或所述终端恢复RRC连接;所述接入模块具体用于:确定接收寻呼的载波;从所述随机接入信息中,确定所述接收寻呼的载波的随机接入信息,并根据所述接收寻呼的载波的随机接入信息,在所述接收寻呼的载波上,发起随机接入。
- 根据权利要求22~28任一项所述的终端,其特征在于,所述接入模块具体用于:在任一可发起随机接入的载波上的物理下行控制信道PDCCH上接收到用于指示终端发起随机接入的指示信令;从所述随机接入信息中,确定所述任一可发起随机接入的载波的随机接入信息,并根据所述任一可发起随机接入的载波的随机接入信息,在所述任一可发起随机接入的载波 上,发起随机接入。
- 根据权利要求22~28任一项所述的终端,其特征在于,若所述终端处于RRC连接态、或所述终端有上行数据到达需要发起随机接入;所述接入模块具体用于:从所述随机接入信息中,确定网络侧为所述终端配置的辅载波的随机接入信息,并根据所确定的随机接入信息,在网络侧为所述终端配置的辅载波上,发起随机接入。
- 根据权利要求22~28任一项所述的终端,其特征在于,所述接入模块具体用于:根据网络侧发送的切换命令,确定网络侧配置的目标小区和目标载波;根据所述目标载波的随机接入信息,在所述目标载波上,发起在所述目标小区的随机接入。
- 根据权利要求32所述的终端,其特征在于,所述接收模块具体用于:通过所述切换命令,接收所述目标载波的随机接入信息;或者接收所述目标小区中可发起随机接入的载波的随机接入信息,并从所述随机接入信息中,确定所述目标载波的随机接入信息。
- 根据权利要求22~28任一项所述的终端,其特征在于,若所述终端处于RRC连接态且移动到当前小区的边缘;或者所述终端处于RRC连接重建状态;所述接入模块具体用于:确定目标小区;确定所述目标小区中接收寻呼的载波,从在所述随机接入信息中,确定所述目标小区中接收寻呼的载波的随机接入信息,根据所确定的随机接入信息,在所述目标小区中接收寻呼的载波上,发起随机接入;或者随机选择所述终端和网络侧均支持的可发起随机接入的载波,从所述随机接入信息中,确定所选择的载波的随机接入信息,并根据所确定的随机接入信息,在所选择的载波上发起随机接入;所述接收模块具体用于:接收所述目标小区中可发起随机接入的载波的随机接入信息。
- 一种网络侧设备,其特征在于,所述网络侧设备包括:发送模块,用于将可发起随机接入的载波的随机接入信息,发送给终端,所述可发起随机接入的载波包括主载波和辅载波;接收模块,用于在任一可发起随机接入的载波上,接收终端的随机接入。
- 根据权利要求35所述的设备,其特征在于,所述随机接入信息包括以下信息中的至少一种:可发起随机接入的载波的属性信息、可发起随机接入的载波的随机接入信道配置信息、以及可发起随机接入的载波的物理随机接入信道配置信息。
- 根据权利要求36所述的设备,其特征在于,所述随机接入信息还包括:用于指示随机接入信道配置信息和/或物理随机接入信道配置信息与可发起随机接入的载波之间的对应关系的标识信息。
- 根据权利要求36所述的设备,其特征在于,所述随机接入信息还包括:用于指示可发起随机接入的辅载波的随机接入信道配置信息与主载波的随机接入信道配置信息是否相同的位图标识,和/或用于指示可发起随机接入的辅载波的物理随机接入信道配置信息与主载波的物理随机接入信道配置信息是否相同的位图标识;或者用于指示可发起随机接入的辅载波的随机接入信道配置信息和物理随机接入信道配置信息是否与主载波的随机接入信道配置信息和物理随机接入信道配置信息相同的位图标识。
- 根据权利要求36所述的设备,其特征在于,可发起随机接入的载波的属性信息包括以下信息中的至少一种:可发起随机接入的载波的下行工作频点和/或上行工作频点、可发起随机接入的载波的索引、可发起随机接入的载波的下行可用子帧的位图配置信息、可发起随机接入的载波的下行间隔配置、以及可发起随机接入的载波的带内载波信息。
- 根据权利要求36所述的设备,其特征在于,可发起随机接入的载波的随机接入信道配置信息包括以下信息中的至少一种:随机接入序列的最大传输次数、功率递增参数、随机接入信道列表、以及无线资源控制RRC连接建立失败时的小区选择或重选的附加偏置。
- 根据权利要求36所述的设备,其特征在于,可发起随机接入的载波的物理随机接入信道配置信息包括以下信息中的至少一种:物理随机接入信道的循环前缀长度、参考信号接收电平阈值的信息列表、以及物理随机接入信道的参数列表;其中,所述参数列表中包括物理随机接入信道的周期、物理随机接入信道的初始时间、物理随机接入信道的子载波偏置、以及物理随机接入信道的子载波个数中的至少一个参数。
- 根据权利要求35~41任一项所述的设备,其特征在于,所述发送模块具体用于:通过所述小区内的主载波的***信息,将可发起随机接入的载波的随机接入信息,发送给终端;或者通过切换命令,将所述网络侧设备为所述终端配置的目标载波的随机接入信息,发送给所述终端。
- 一种终端,其特征在于,所述终端包括收发机、以及与所述收发机连接的至少一个处理器,其中:所述处理器,用于读取存储器中的程序,执行下列过程:通过所述收发机接收可发起随机接入的载波的随机接入信息,所述可发起随机接入的载波包括主载波和辅载波;根据所述随机接入信息,从可发起随机接入的载波中,选择一 个载波发起随机接入;所述收发机,用于在所述处理器的控制下接收和发送数据。
- 一种网络侧设备,其特征在于,所述网络侧设备包括:收发机、以及与所述收发机连接的至少一个处理器,其中:所述处理器,用于读取存储器中的程序,执行下列过程:控制所述收发机将可发起随机接入的载波的随机接入信息,发送给终端,所述可发起随机接入的载波包括主载波和辅载波;通过所述收发机在任一可发起随机接入的载波上,接收终端的随机接入;所述收发机,用于在所述处理器的控制下接收和发送数据。
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