WO2017133666A1 - 接入方法、ue的能力和/或操作特征的确定方法及装置 - Google Patents

接入方法、ue的能力和/或操作特征的确定方法及装置 Download PDF

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Publication number
WO2017133666A1
WO2017133666A1 PCT/CN2017/072836 CN2017072836W WO2017133666A1 WO 2017133666 A1 WO2017133666 A1 WO 2017133666A1 CN 2017072836 W CN2017072836 W CN 2017072836W WO 2017133666 A1 WO2017133666 A1 WO 2017133666A1
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Prior art keywords
bitmap
base station
preamble index
determining
information
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PCT/CN2017/072836
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English (en)
French (fr)
Inventor
陆婷
沙秀斌
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中兴通讯股份有限公司
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Publication of WO2017133666A1 publication Critical patent/WO2017133666A1/zh

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information

Definitions

  • the present invention relates to the field of communications, and in particular to an access method, a method and apparatus for determining capabilities and/or operational characteristics of a UE.
  • Machine Type Communication is an important topic of the 5th Generation mobile communication technology (5G), and an important application field for wireless communication in the future.
  • 5G 5th Generation mobile communication technology
  • NB-IoT NarowBand-Internet of Things
  • the NB-IoT low-cost user equipment (User Equipment, UE for short) provides low-throughput wireless communication services within the frequency band.
  • the terminal may establish a connection with the base station by using a contention access or a non-contention access mechanism. Regardless of the contention access or the non-contention access mechanism, the terminal needs to select a preamble index preamble index in the preamble related information provided by the base station to generate a random access sequence. For the contention access mechanism, the terminal selects a preamble index group matching the coverage level, the connection establishment request message size to be sent, and the like in the preamble information sent by the base station through the system message, and randomly selects one available in the group. Preamble index.
  • the terminal selects an available preamble index from the reserved dedicated preamble information provided by the base station through the dedicated message.
  • the code division multiplexing effect on the random access resources can be achieved by allowing the terminal to randomly select the preamble index within a certain range.
  • the base station needs to provide available preamble index information to the terminal through system messages or dedicated messages, occupying air interface resources;
  • the base station Whenever the terminal adds a new capability or an operation feature, the base station needs to re-divide the preamble index information, so that the base station distinguishes the operation features of the terminal by using different preamble index information groups, and needs to modify the protocol accordingly, correspondingly It will make it difficult for the terminal to provide sufficient capability and operation feature information to the base station in the random access phase.
  • the present invention provides an access method, a method and a device for determining the capabilities and/or operational characteristics of a UE, to at least solve the problem of occupying air interface resources caused by the available preamble index provided by the base station to the UE in the related art. Change The problem with the preamble index group.
  • an access method including: a user equipment UE generates a preamble index; and the UE accesses a base station by using the generated preamble index.
  • the generating, by the UE, the preamble index comprises: determining, by the UE, a bitmap, where the bitmap is used to at least one of indicating: generating a reserved preamble index for generating a reservation Information, indication information indicating a capability and/or an operation characteristic of the UE; the UE generates the preamble index according to the bitmap.
  • the determining, by the UE, the bitmap includes: determining, by the UE, a length of the bitmap and a location in the bitmap for indicating the information; the UE generating the bit of the length The figure will be indicated by the bits at the corresponding locations in the bitmap.
  • the determining, by the UE, the length of the bitmap and the location in the bitmap for indicating the information at least one of the following: determining, by the UE, the length and the location by using a preset configuration in a protocol Positioning; determining, by the UE, the length and the location by receiving a notification message from the base station; the UE determining the length and the location by negotiating with a base station; the UE defining the length And the location.
  • the determining, by the UE, the location in the bitmap for indicating the information includes at least one of: determining, by the UE, that the first bit to the m-1th bit in the bitmap are used to indicate Generating information; the UE determines that the first bit to the m-1th bit in the bitmap are used to indicate identification information for identifying the UE, and the m+1th to nth bits are used to indicate The indication information; the UE determines that the first bit to the m-1th bit in the bitmap are used to indicate the generated information, and the m+1th to kth bits in the bitmap are used to indicate And identifier information for identifying the UE, where the k+1th to nth bits in the bitmap are used to indicate the indication information; and the UE determines the first bit to the mth in the bitmap.
  • 1 bit is used to indicate the generated information
  • the mth to kth bits in the bitmap are used to indicate the indication information
  • the k+1th to nth bits in the bitmap are used for indication And identifying the identifier information of the UE, where the mth bit in the bitmap is used to indicate a type message, where the type message is used to indicate randomness of the UE
  • the type of access mechanism and m> 1, m is an integer; and the n> m + 3, and n is an integer; and the n> k> m, k is an integer.
  • the capability of the UE includes at least one of: the capability of the UE to support simultaneous transmission of multiple subcarriers; the capability of the UE to support a user plane optimization mode; and the capability of the UE to support a control plane optimization mode;
  • the operating characteristics of the UE include at least one of: an operation feature of the UE using a control plane optimization mode; an operation feature of the UE using a user plane optimization mode; a format of the Msg3 to be transmitted by the UE; The coverage level information of the UE.
  • two or more capabilities and/or operational features of the UE are indicated by employing different bit positions in the bitmap, or by using a joint indication of the same bit position in the bitmap.
  • the capability and/or operation feature information of the UE is used to indicate a random access resource used by the UE.
  • a method for determining a capability and/or an operational characteristic of a user equipment UE comprising: a base station receiving a preamble index from a UE, wherein the preamble index is generated by the UE The base station determines capabilities and/or operational characteristics of the UE based on the preamble index.
  • the base station after receiving, by the base station, the preamble index from the UE, the base station does not send preamble index information by using an interface message.
  • the MAC header of the random access response sent by the base station to the UE is no longer included in the MAC prefix associated with the UE. Information.
  • the obtaining, by the base station, the indication information, which is used to indicate the capability and/or the operation feature of the UE, in the bitmap includes: determining, by the base station, the indication in the bitmap Location of the information; the base station acquires the indication information indicating the location indication of the indication information.
  • the determining, by the base station, the location for indicating the indication information in the bitmap includes at least one of: the base station determining, by using a preset configuration in a protocol, a location for indicating the indication information; Determining, by the base station, a location for indicating the indication information by using a received notification message from the UE; and determining, by the base station, a location for indicating the indication information by using a manner negotiated with the UE; The location determined by the base station to indicate the indication information is used to indicate the location of the indication information.
  • the method further includes at least one of the following: the base station sends an indication message to the UE, where the indication message is used. Determining whether the UE generates a reserved dedicated preamble index; the base station notifies a length of a bitmap used to generate the preamble index and a location in the bitmap for indicating at least one of the following information UE: generation information for generating a reserved dedicated preamble index, indication information for indicating capabilities and/or operational characteristics of the UE.
  • the capability of the UE includes at least one of: the capability of the UE to support simultaneous transmission of multiple subcarriers; the capability of the UE to support a user plane optimization mode; and the capability of the UE to support a control plane optimization mode;
  • the operating characteristics of the UE include at least one of: an operation feature of the UE using a control plane optimization mode; an operation feature of the UE using a user plane optimization mode; a format of the Msg3 to be transmitted by the UE; The coverage level information of the UE.
  • an access device configured to apply to a user equipment UE, comprising: a generating module configured to generate a preamble index; and an access module configured to utilize the generated preamble The code index is accessed by the base station.
  • apparatus for determining capabilities and/or operational characteristics of a user equipment UE comprising: a receiving module configured to receive a preamble index from the UE, wherein And the preamble index is generated by the UE; and the determining module is configured to determine a capability and/or an operation feature of the UE according to the preamble index.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium stores an execution instruction, where the execution instruction is used to perform one or a combination of the steps in the foregoing method embodiments.
  • the user equipment UE is used to generate a preamble index; the UE uses the generated preamble index to connect Enter the base station.
  • the problem that the UE cannot report its capability and/or operation characteristics in the morning is solved in the related art, and the problem that the air interface resource occupied by the base station provides the available preamble index to the UE and the preamble index group cannot be flexibly changed is further solved.
  • the effect of reducing the occupation of the air interface resources and the need for the base station to generate and change the preamble index group and reduce the signaling overhead are achieved.
  • FIG. 1 is a flow chart of an access method according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a bitmap according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method of determining capabilities and/or operational characteristics of a UE, in accordance with an embodiment of the present invention
  • FIG. 4 is a schematic diagram 1 of a specific structure of a bitmap according to an embodiment of the present invention.
  • FIG. 5 is a second schematic structural diagram of a bitmap according to an embodiment of the present invention.
  • FIG. 6 is a structural block diagram of an access device according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of determining apparatus for capabilities and/or operational characteristics of a UE in accordance with an embodiment of the present invention.
  • FIG. 1 is a flowchart of an access method according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:
  • Step S102 The user equipment UE generates a preamble index.
  • Step S104 The UE accesses the base station by using the generated preamble index.
  • the generated preamble index may carry the capability and/or operation feature of the UE. Therefore, the problem that the UE cannot report its capability and/or operation characteristics in the morning can be solved, and the preamble index of the preamble index that the UE accesses is generated by the UE itself, so that it is not required to obtain from the base station side, that is, The base station does not need to send the preamble index related information to the terminal through the system message or the dedicated message, thereby reducing the occupation of the air interface resource, and at the same time, the UE can generate the corresponding preamble index according to the situation, without the base station performing the preamble index group division and according to the UE.
  • the specific situation is changed by the preamble index group, thereby solving the related technology that the UE cannot report it in the morning.
  • the problem of the force and/or the operation feature solves the problem of occupying the air interface resource caused by the base station providing the available preamble index to the UE and the inability to flexibly change the preamble index group, thereby reducing the occupation of the air interface resource, and The base station is not required to generate and change the preamble index group, and the signaling overhead is reduced.
  • the foregoing UE generating the preamble index includes: the foregoing UE determining a bitmap, where the bitmap is used to at least one of indicating: generating a reserved dedicated preamble index for generating a reservation.
  • the form of the bitmap can be as shown in FIG. 2.
  • FIG. 2 is a schematic structural diagram of a bitmap according to an embodiment of the present invention. In FIG.
  • the values of n and m are both configurable, for example, may be configured in a protocol, or may be configured by the base station according to a related policy and notified by the air interface message, or may be negotiated by the base station and the UE. The determination may also be determined by the UE itself and then reported to the base station. Preferably, the lowest bit in the above bitmap is marked as the first bit. In this embodiment, when the UE generates the preamble index according to the bitmap, the UE may use the value calculated based on the bitmap as a preamble index, and the calculation mentioned herein may include some data hexadecimal conversion operations.
  • the determining, by the UE, the bitmap includes: determining, by the UE, a length of the bitmap and a location in the bitmap for indicating the foregoing information; the UE generates a bitmap of the length, and uses the above bit
  • the bits at the corresponding positions in the figure indicate the above information.
  • the value of n above corresponds to the length of the bitmap.
  • the foregoing UE determines the length of the bitmap and the location in the bitmap for indicating the foregoing information includes at least one of the following: the UE determines the length and the location by using a preset configuration in the protocol; The notification message from the base station determines the length and location; the UE determines the length and location by negotiating with the base station; the UE defines the length and location. It should be noted that the manners for determining the length and position listed herein are only a few examples, and are not limited to these examples, and other reasonable determination manners may be adopted, and are not enumerated here.
  • the foregoing determining, by the UE, a location in the bitmap for indicating the foregoing information includes at least one of the following: the UE determines that the first bit to the m-1th bit in the bitmap are used to indicate the generated information; The first bit to the m-1th bit in the foregoing UE determining bitmap are used to indicate identification information for identifying the UE, and the m+1th to nth bits are used to indicate indication information; the UE determines the number in the bitmap.
  • 1 bit to m-1th bits are used to indicate generation information, and m+1th to kth bits in the bitmap are used to indicate identification information for identifying the UE, the k+1th to nth in the bitmap
  • the bit is used to indicate the indication information; the UE determines that the first bit to the m-1th bit in the bitmap are used to indicate the generated information, and the mth bit to the kth bit in the bitmap are used to indicate the indication information in the bitmap.
  • the k+1th bit to the nth bit are used to indicate identification information for identifying the UE; wherein the mth bit in the bitmap is used to indicate a type message, where the g2 type message is used to indicate random access of the UE.
  • Mechanism when indicating the above information, may also determine a specific indication position according to the value of m, for example, the lowest (m-1) consecutive bits in the bitmap indicate: sequence bit, when the mth bit is taken When the value is 0, the nth bit to the m+1th bit take a value of 0, and all the values of the bitmap calculated according to the different values of the 1st bit to the (m-1)th bit are used as the reserved dedicated preamble. Index is used (corresponding to the above generated information).
  • the nth bit to the m+1th bit are used to define terminal capabilities and operation characteristics (corresponding to the above indication information), and all values of the first bit to the mth bit can be used for Have the same terminal capability Further differentiation of the user of the operational feature (corresponding to the identification information described above), or all values of the first bit to the m-1th bit can be used for further differentiation of users having the same terminal capabilities and operational characteristics.
  • the indication information of the indicated capability information is described by taking the indication information indicated by the above m+1th to nth bits as an example:
  • a bit of the m+1th bit to the nth bit may be selected to indicate whether the UE supports simultaneous transmission of multiple subcarriers.
  • a bit of the m+1th bit to the nth bit may be selected to indicate whether the UE supports the user plane optimization mode.
  • the two bits from the m+1th bit to the nth bit may be selected to indicate: the coverage level information of the UE, and the values of 00, 01, 10, and 11 respectively correspond to four different coverage levels from good to bad. .
  • a certain two bits from the m+1th bit to the nth bit may be selected to indicate the format of the Msg3 message to be transmitted by the terminal.
  • the values of 00, 01, 10, and 11 respectively correspond to four different formats of Msg3 (for example, four different formats of data sizes from small to large).
  • the positions of the bits indicating the information of the different capabilities may be different from each other, but it should be noted that, in actual application, one bit may also be used to simultaneously indicate whether the UE supports multiple subcarriers for simultaneous transmission, and
  • the format of the Msg3 message, when the UE supports multiple subcarriers for simultaneous transmission generally corresponds to the Msg3 of the big data format.
  • Unoccupied bits in the m+1th through nth bits may be reserved as reserved bits for future expansion.
  • the protocol in the related art re-divides the preamble index information group, so that the base station can learn the coverage level information through the preamble index used by the terminal, but whether the terminal supports multiple subcarriers.
  • the capabilities of the foregoing UE may include the capability of the UE to support simultaneous transmission of multiple subcarriers. In this way, when the UE performs random access, the UE can also carry the capability of supporting the simultaneous transmission of multiple subcarriers in the bitmap, so that the base station can clarify the capability of the UE for subsequent operations.
  • the capability of the foregoing UE includes at least one of the following: a capability of the UE to support simultaneous transmission of multiple subcarriers; a capability of the UE to support a user plane optimization mode; a capability of the UE to support a control plane optimization mode; and/or
  • the operating characteristics of the UE include at least one of the following: an operation feature of the UE using a control plane optimization mode; an operation feature of the UE using a user plane optimization mode; a format of the Msg3 to be transmitted by the UE; and coverage level information of the UE.
  • more than two capabilities and/or operational characteristics of the UE may be indicated by employing different bit positions in the bitmap, or by using a joint indication of the same bit position in the bitmap.
  • the capability and/or operation feature information of the UE is used to indicate a random access resource used by the UE.
  • FIG. 3 is a flowchart of a method for determining a capability and/or an operation feature of a UE according to an embodiment of the present invention, as shown in FIG. As shown, the process includes the following step:
  • Step S302 the base station receives a preamble index from the UE, where the preamble index is generated by the UE;
  • Step S304 the foregoing base station determines a capability and/or an operation feature of the UE according to the preamble index.
  • the preamble index of the preamble index that the UE performs the random access is generated by the UE itself, so that the base station side does not need to generate the re-notification to the UE, that is, the base station does not need to send the preamble index related information to the terminal through the system message or the dedicated message.
  • the UE can also generate the corresponding preamble index according to the situation of the UE, and the base station does not need to perform the division of the preamble index group and the preamble index group according to the specific situation of the UE, thereby solving the related art.
  • the UE cannot report the capability and/or operation characteristics of the morning in the morning, and solves the problem of occupying the air interface resources caused by the base station providing the available preamble index to the UE and unable to flexibly change the preamble index group, thereby achieving the reduction of the air interface.
  • the base station after receiving the preamble index from the UE, the base station does not send the preamble index information through the interface message.
  • the base station after receiving the preamble index from the UE, does not include information related to the preamble index of the UE in the MAC header of the random access response sent by the base station to the UE.
  • the capability of the foregoing UE may include the capability of the UE to support simultaneous transmission of multiple subcarriers. In this way, when performing random access, the UE can also carry its own capability of supporting multiple subcarriers to be simultaneously transmitted in the bitmap, so that the base station can clarify the capability of the UE for subsequent operations.
  • the capabilities and/or operational characteristics of the UE may also include other information, and other information will be described in detail in the embodiments to be described later.
  • the obtaining, by the base station, the indication information that is used in the bitmap to indicate the capability and/or the operation feature of the UE includes: determining, by the base station, a location in the bitmap for indicating the indication information; The indication information indicated at the position indicating the above indication information.
  • the foregoing determining, by the base station, the location for indicating the indication information in the bitmap includes at least one of the following: the base station determines, by using a preset configuration in the protocol, a location for indicating the indication information; The received notification message from the UE determines a location for indicating the indication information; the base station determines a location for indicating the indication information by negotiating with the UE; the base station pre-defined by the base station is used to indicate the foregoing The location of the indication information determines a location for indicating the above indication information.
  • the method before the receiving, by the base station, the preamble index from the UE, the method further includes at least one of the following: the base station sends an indication message to the UE, where the indication message is used to indicate whether the UE generates a reservation.
  • the base station notifies the UE of the length of the bitmap used to generate the foregoing preamble index and the location in the bitmap for indicating at least one of the following information: generation of a dedicated preamble index for generating the reservation Information for indicating the capability of the UE Instructions for force and/or operational characteristics.
  • the capability of the foregoing UE includes at least one of the following: a capability of the UE to support simultaneous transmission of multiple subcarriers; a capability of the UE to support a user plane optimization mode; a capability of the UE to support a control plane optimization mode; and/or
  • the operating characteristics of the UE include at least one of the following: an operation feature of the UE using a control plane optimization mode; an operation feature of the UE using a user plane optimization mode; a format of the Msg3 to be transmitted by the UE; and coverage level information of the UE.
  • the transmission sets 4 coverage levels, and the terminal cannot use the reserved dedicated preamble index.
  • FIG. 4 is a first schematic structural diagram of a bitmap according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram 2 of a specific structure of a bitmap according to an embodiment of the present invention.
  • a terminal capability and operational feature bitmap as shown in FIG. 2 can be defined in this embodiment.
  • the terminal can use the value calculated based on the bitmap as a preamble index.
  • the base station can parse the received bitmap according to the received preamble index and derive the terminal capability and operation characteristics accordingly.
  • the values of n and m may be configured in the protocol, or may be configured by the base station according to the relevant policy and notified by the air interface message.
  • the base station After receiving the random access information of the terminal, the base station sends a random access response message to the terminal.
  • the base station configuration m when the base station configuration m takes a value of >1, it indicates that the bitmap format is only partially used to indicate the terminal capability and operation characteristics.
  • the base station selects all or part of the bits of the bitmap to be parsed, and fills in the corresponding value of the random access preamble identifier contained in the Media Access Control (MAC) header of the random access response (Random).
  • the Access Preamble Identifier (abbreviated as RAPID) field is used by the terminal to match the received random access response message with the random access information sent by itself.
  • the base station configuration m when the base station configuration m takes a value of 1, it indicates that the bitmap format is all used to indicate the terminal capability and the operation feature.
  • the base station may indicate by the air interface message that the RAPID field in the random access response message is no longer associated with the preamble index sent by the terminal.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
  • module may implement a combination of software and/or hardware of a predetermined function.
  • apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 6 is a structural block diagram of an access device according to an embodiment of the present invention.
  • the device may be applied to a user equipment UE.
  • the device includes a generating module 62 and an access module 64. Description.
  • the generating module 62 is configured to generate a preamble index
  • the access module 64 is connected to the generating module 62, and is configured to access the base station by using the generated preamble index.
  • the generating module 62 may generate a preamble index by determining a bitmap, where the bitmap is at least used to indicate at least one of the following: a dedicated preamble for generating a reservation. Index generation information, indication information for indicating capabilities and/or operation characteristics of the UE; generating a preamble index according to the bitmap.
  • the generating module 62 may determine a bitmap by determining a length of the bitmap and a position in the bitmap for indicating information; generating a bitmap of the length, and using the above bit The bits at the corresponding positions in the figure indicate the above information.
  • the generating module 62 may determine the length of the bitmap and the location in the bitmap for indicating the information, including at least one of the following: determining the length and the length by a configuration preset in the protocol. a location; determining the length and location by receiving a notification message from the base station; determining the length and location by negotiating with the base station; defining the length and location by the UE.
  • the location of the bitmap determined by the UE to indicate the information includes at least one of: determining that the first bit to the m-1th bit in the bitmap are used to indicate the generated information; Determining the first bit to the m-1th bit in the bitmap for indicating identification information for identifying the UE, the m+1th to nth bits are used for indicating the indication information; determining the first bit to the first in the bitmap The m-1 bit is used to indicate the above-mentioned generated information, and the m+1th to kth bits in the bitmap are used to indicate identification information for identifying the UE, and the k+1th to nth bits in the bitmap For indicating the foregoing indication information; determining that the first bit to the m-1th bit in the bitmap are used to indicate the generated information, and the mth bit to the kth bit in the bitmap are used to indicate the indication information in the bitmap.
  • the k+1th bit to the nth bit are used to indicate the identification information used to identify the UE, where the mth bit in the bitmap is used to indicate a type message, where the type message is used to indicate random access of the UE.
  • Type of access mechanism type and m>1, m is an integer; the n>m+3, and n is an integer; n>k>m, k is an integer.
  • the capability of the foregoing UE includes at least one of the following: the capability of the UE to support simultaneous transmission of multiple subcarriers; the capability of the UE to support the user plane optimization mode; and the capability of the UE to support the control plane optimization mode;
  • the operating characteristics of the foregoing UE include at least one of: an operation feature of the UE using a control plane optimization mode; an operation feature of the UE using a user plane optimization mode; a format of the Msg3 to be transmitted by the UE; and coverage level information of the UE.
  • the two or more capabilities and/or operational characteristics of the UE are indicated by employing different bit positions in the bitmap, or by using the same bit position in the bitmap.
  • the capability and/or operation feature information of the UE is used to indicate a random access resource used by the UE.
  • FIG. 7 is a structural block diagram of a determining apparatus for a capability and/or an operating characteristic of a UE according to an embodiment of the present invention.
  • the apparatus may be applied to a base station. As shown in FIG. 7, the apparatus includes a receiving module 72 and a determining module 74. The device will be described.
  • the receiving module 72 is configured to receive a preamble index from the UE, where the preamble index is generated by the UE, and the determining module 74 is connected to the receiving module 72, and is configured to determine the capability of the UE according to the preamble index and/or Operating characteristics.
  • the base station after receiving the preamble index from the UE, the base station does not send the preamble index information through the interface message.
  • the base station after receiving the preamble index from the UE, does not include information related to the preamble index of the UE in the MAC header of the random access response sent by the base station to the UE.
  • the determining module 74 may determine the capability and/or operation feature of the UE by parsing the preamble index to obtain a bitmap, and acquiring the capability and the carrying of the UE in the bitmap. And/or indication information of the operation feature; determining the capability and/or operation characteristics of the UE according to the indication information.
  • the determining module 74 may obtain the indication information carried in the bitmap for indicating the capability and/or the operation feature of the UE by determining the indication information used in the bitmap. Position; obtaining indication information indicating the indication at the position of the indication information.
  • the determining module 74 determines that the location of the bitmap for indicating the indication information includes at least one of: determining, by using a preset configuration in the protocol, a location for indicating the indication information; The received notification message from the UE determines a location for indicating the indication information, determines a location for indicating the indication information by negotiating with the UE, and determines a location for indicating the indication information that is predefined by the base station. In the position indicating the above indication information.
  • the above apparatus further includes at least one of the following modules:
  • the first processing module is connected to the receiving module 72, and is configured to send an indication message to the UE before receiving the preamble index from the UE, where the indication message is used to indicate whether the UE generates the reserved dedicated preamble index;
  • a second processing module coupled to the receiving module 72, configured to receive a preamble index from the UE before The length of the bitmap used to generate the foregoing preamble index and the location in the bitmap for indicating at least one of the following information are notified to the UE: generating information for generating a reserved dedicated preamble index, for indicating the UE Instructions for capabilities and/or operational characteristics.
  • the capability of the foregoing UE includes at least one of the following: a capability of the UE to support simultaneous transmission of multiple subcarriers; a capability of the UE to support a user plane optimization mode; a capability of the UE to support a control plane optimization mode; and/or
  • the operating characteristics of the UE include at least one of the following: an operation feature of the UE using a control plane optimization mode; an operation feature of the UE using a user plane optimization mode; a format of the Msg3 to be transmitted by the UE; and coverage level information of the UE.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the user equipment UE generates a preamble index.
  • the foregoing UE accesses the base station by using the generated preamble index.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the base station receives a preamble index from the UE, where the preamble index is generated by the UE.
  • the foregoing base station determines a capability and/or an operation feature of the UE according to the preamble index.
  • the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM).
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • the processor executes the steps in the foregoing method embodiments according to the stored program code in the storage medium.
  • the UE can report its capability and operation characteristics in the random access phase in a more flexible manner, and reduce the system message content sent by the base station, thereby reducing the air interface signaling overhead.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • an access method, a method and a device for determining a capability and/or an operation feature of a UE provided by an embodiment of the present invention have the following beneficial effects: solving the occupation caused by the base station providing an available preamble index to the UE The problem of the air interface resources and the inability to flexibly change the preamble index group, thereby reducing the occupation of air interface resources, and eliminating the need for the base station to generate and change the preamble index group, and reducing the signaling overhead.

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Abstract

本发明提供了一种接入方法、UE的能力和/或操作特征的确定方法及装置，其中，该随机接入方法包括：用户设备UE生成前导码索引；上述UE利用生成的前导码索引接入基站。通过本发明，解决了相关技术中UE无法尽早上报其能力和/或操作特征的问题，解决了由基站向UE提供可用的前导码索引所导致的占用空中接口资源以及无法灵活变动前导码索引组的问题，进而达到了减少空中接口资源的占用，以及无需基站生成、变动前导码索引组，降低信令开销的效果。

Description

接入方法、UE的能力和/或操作特征的确定方法及装置 技术领域
本发明涉及通信领域，具体而言，涉及一种接入方法、UE的能力和/或操作特征的确定方法及装置。
背景技术
机器类型通信(Machine Type Communication，简称为MTC)是第五代移动通信技术(the 5th Generation mobile communication technology，简称为5G)目前研究的一个重要课题，也是未来无线通信的一个重要应用领域。在MTC课题里，针对低成本、低功耗、低移动性、低吞吐量等终端特性，提出了窄带物联网(NarowBand-Internet of Things，简称为NB-IoT)研究子课题，也就是在200khz的频带内为NB-IoT低成本用户设备(User Equipment，简称为UE)提供低吞吐量的无线通讯服务。
在已经确定的针对MTC终端的空中接口处理流程中，终端(同上述的用户设备UE)可以采用竞争接入或非竞争接入机制与基站建立连接。无论竞争接入还是非竞争接入机制，终端都需要在基站提供的前导码preamble相关信息中选择一个前导码索引preamble index来生成随机接入序列。对于竞争接入机制，终端会在基站通过系统消息发送的preamble信息中选择与自己所处覆盖等级、将要发送的连接建立请求消息大小等匹配的preamble index组，并在该组中随机选择一个可用的preamble index。对于非竞争接入机制，终端会在基站通过专用消息提供的预留的专用preamble信息中选择一个可用的preamble index。对于竞争接入机制，通过让终端在一定范围内随机选择preamble index，可以达到对随机接入资源进行码分复用的效果。
但是，采用相关技术中的上述方案会存在如下问题：
基站需要通过系统消息或专用消息向终端提供可用的preamble index信息，占用空中接口资源；
每当终端增加新的能力或操作特征时，就需要基站将preamble index信息进行重新划分，以便基站通过不同的preamble index信息组来区分终端的操作特征，并需要对协议进行相应地改动，相应地，会使得终端难以在随机接入阶段向基站提供足够的能力及操作特征信息。
针对相关技术中由基站向UE提供可用的前导码索引所导致的占用空中接口资源以及无法灵活变动前导码索引组的问题，目前尚未提出有效的解决方案。
发明内容
本发明提供了一种接入方法、UE的能力和/或操作特征的确定方法及装置，以至少解决相关技术中由基站向UE提供可用的前导码索引所导致的占用空中接口资源以及无法灵活变动 前导码索引组的问题。
根据本发明的一个方面，提供了一种接入方法，包括：用户设备UE生成前导码索引；所述UE利用生成的所述前导码索引接入基站。
可选的，所述UE生成所述前导码索引包括：所述UE确定位图，其中，所述位图至少用于指示以下信息至少之一：用于生成预留的专用前导码索引的生成信息、用于指示所述UE的能力和/或操作特征的指示信息；所述UE根据所述位图生成所述前导码索引。
可选的，所述UE确定所述位图包括：所述UE确定所述位图的长度以及所述位图中用于指示所述信息的位置；所述UE生成所述长度的所述位图，并将利用所述位图中对应位置处的比特指示所述信息。
可选的，所述UE确定所述位图的长度以及所述位图中用于指示所述信息的位置包括以下至少之一：所述UE通过协议中预设的配置确定所述长度和所述位置；所述UE通过接收的来自所述基站的通知消息确定所述长度和所述位置；所述UE通过与基站协商的方式确定所述长度和所述位置；所述UE定义所述长度和所述位置。
可选的，所述UE确定所述位图中用于指示所述信息的位置包括以下至少之一：所述UE确定所述位图中的第1比特至第m-1比特用于指示所述生成信息；所述UE确定所述位图中的第1比特至第m-1比特用于指示用于标识所述UE的标识信息，所述第m+1比特至第n比特用于指示所述指示信息；所述UE确定所述位图中的第1比特至第m-1比特用于指示所述生成信息，所述位图中的第m+1比特至第k比特用于指示用于标识所述UE的标识信息，所述位图中的第k+1比特至第n比特用于指示所述指示信息；所述UE确定所述位图中的第1比特至第m-1比特用于指示所述生成信息，所述位图中的第m比特至第k比特用于指示所述指示信息，所述位图中的第k+1比特至第n比特用于指示用于标识所述UE的标识信息；其中，所述位图中的第m比特用于指示类型消息，其中，所述类型消息用于指示所述UE的随机接入的接入机制类型，且m>1，m为整数；所述n>m+3，且n为整数；所述n>k>m，k为整数。
可选的，所述UE的能力包括以下至少之一：所述UE支持多个子载波同时传输的能力；所述UE支持用户面优化方式的能力；所述UE支持控制面优化方式的能力；和/或，所述UE的操作特征包括以下至少之一：所述UE使用控制面优化方式的操作特征；所述UE使用用户面优化方式的操作特征；所述UE将要传输的Msg3的格式；所述UE所处的覆盖等级信息。
可选的，所述UE的两个以上能力和/或操作特征通过采用所述位图中不同的比特位置进行指示，或者，通过采用所述位图中同一个比特位置进行联合指示。
可选的，所述UE的能力和/或操作特征信息用于指示所述UE所使用的随机接入资源。
根据本发明的另一方面，提供了一种用户设备UE的能力和/或操作特征的确定方法，包括：基站接收来自UE的前导码索引，其中，所述前导码索引为所述UE生成的；所述基站根据所述前导码索引确定所述UE的能力和/或操作特征。
可选的，所述基站在接收来自所述UE的所述前导码索引之后，所述基站不再通过接口消息发送前导码索引信息。
可选的，所述基站在接收来自所述UE的所述前导码索引之后，所述基站向所述UE发送的随机接入响应的MAC包头中不再包含与所述UE的前导码索引关联的信息。
可选的，所述基站根据所述前导码索引确定所述UE的能力和/或操作特征包括：所述基站解析所述前导码索引得到位图；所述基站获取所述位图中指示的用于指示所述UE的能力和/或操作特征的指示信息；根据所述指示信息确定所述UE的能力和/或操作特征。
可选的，所述基站获取所述位图中指示的用于指示所述UE的能力和/或操作特征的所述指示信息包括：所述基站确定所述位图中用于指示所述指示信息的位置；所述基站获取用于指示所述指示信息的位置上指示的所述指示信息。
可选的，所述基站确定所述位图中用于指示所述指示信息的位置包括以下至少之一：所述基站通过协议中预设的配置确定用于指示所述指示信息的位置；所述基站通过接收的来自所述UE的通知消息确定用于指示所述指示信息的位置；所述基站通过与所述UE协商的方式确定用于指示所述指示信息的位置；所述基站通过所述基站预先定义的用于指示所述指示信息的位置确定用于指示所述指示信息的位置。
可选的，所述基站在接收来自所述UE的所述前导码索引之前，所述方法还包括以下至少之一：所述基站向所述UE发送指示消息，其中，所述指示消息用于指示所述UE是否生成预留的专用前导码索引；所述基站将用于生成所述前导码索引的位图的长度以及所述位图中用于指示以下信息至少之一的位置通知给所述UE：用于生成预留的专用前导码索引的生成信息、用于指示所述UE的能力和/或操作特征的指示信息。
可选的，所述UE的能力包括以下至少之一：所述UE支持多个子载波同时传输的能力；所述UE支持用户面优化方式的能力；所述UE支持控制面优化方式的能力；和/或，所述UE的操作特征包括以下至少之一：所述UE使用控制面优化方式的操作特征；所述UE使用用户面优化方式的操作特征；所述UE将要传输的Msg3的格式；所述UE所处的覆盖等级信息。
根据本发明的另一方面，提供了一种接入装置，所述装置应用于用户设备UE中，包括：生成模块，设置为生成前导码索引；接入模块，设置为利用生成的所述前导码索引接入基站。
根据本发明的另一方面，提供了一种用户设备UE的能力和/或操作特征的确定装置，所述装置应用于基站中，包括：接收模块，设置为接收来自UE的前导码索引，其中，所述前导码索引为所述UE生成的；确定模块，设置为根据所述前导码索引确定所述UE的能力和/或操作特征。
本发明的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质中存储有执行指令，该执行指令用于执行上述方法实施例中的步骤之一或其组合。
通过本发明，采用用户设备UE生成前导码索引；所述UE利用生成的所述前导码索引接 入基站。解决了相关技术中UE无法尽早上报其能力和/或操作特征的问题，解决了由基站向UE提供可用的前导码索引所导致的占用空中接口资源以及无法灵活变动前导码索引组的问题，进而达到了减少空中接口资源的占用，以及无需基站生成、变动前导码索引组，降低信令开销的效果。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的接入方法的流程图；
图2是根据本发明实施例的位图的结构示意图；
图3是根据本发明实施例的UE的能力和/或操作特征的确定方法的流程图；
图4是根据本发明实施例的位图的具体结构示意图一；
图5是根据本发明实施例的位图的具体结构示意图二；
图6是根据本发明实施例的接入装置的结构框图；
图7是根据本发明实施例的UE的能力和/或操作特征的确定装置的结构框图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
在本实施例中提供了一种接入方法，图1是根据本发明实施例的接入方法的流程图，如图1所示，该流程包括如下步骤：
步骤S102，用户设备UE生成前导码索引；
步骤S104，上述UE利用生成的前导码索引接入基站。
其中，生成的上述前导码索引中可以携带有UE的能力和/或操作特征。从而可以解决UE无法尽早上报其能力和/或操作特征的问题，并且，从上述步骤可知，UE进行接入的前导码索引preamble index是由UE自己生成的，从而无需从基站侧获取，即，基站无需通过系统消息、专用消息向终端发送preamble index相关信息，从而减少空口资源的占用，同时，还可以使得UE根据自身情况生成对应的preamble index，无需基站进行preamble index组的划分以及根据UE的具体情况进行preamble index组的变动，从而解决了相关技术中UE无法尽早上报其能 力和/或操作特征的问题，解决了由基站向UE提供可用的前导码索引所导致的占用空中接口资源以及无法灵活变动前导码索引组的问题，进而达到了减少空中接口资源的占用，以及无需基站生成、变动前导码索引组，降低信令开销的效果。
在一个可选的实施例中，上述UE生成前导码索引包括：上述UE确定位图，其中，该位图至少用于指示以下信息至少之一：用于生成预留的专用前导码索引的生成信息、用于指示UE的能力和/或操作特征的指示信息；上述UE根据该位图生成上述前导码索引。其中，该位图的形式可以如图2所示，图2是根据本发明实施例的位图的结构示意图。在图2中，n和m的取值都是可以配置的，例如，可以在协议中配置，也可以由基站根据相关策略配置并通过空中接口消息通知UE，也可以是由基站和UE互相协商确定的，还可以是由UE自己确定，然后再上报给基站的。优选地，上述位图中最低比特位标记为第1比特。在该实施例中，UE根据上述位图生成前导码索引时，可以是UE将基于该位图计算得到的值作为preamble index使用，这里所提到的计算可以包括一些数据进制的转换操作。
在一个可选的实施例中，上述UE确定上述位图包括：UE确定该位图的长度以及该位图中用于指示上述信息的位置；UE生成上述长度的位图，并将利用上述位图中对应位置处的比特指示上述信息。其中，上述的n的取值即对应于位图的长度。
在一个可选的实施例中，上述UE确定位图的长度以及位图中用于指示上述信息的位置包括以下至少之一：UE通过协议中预设的配置确定上述长度和位置；UE通过接收的来自基站的通知消息确定上述长度和位置；UE通过与基站协商的方式确定上述长度和位置；UE定义上述长度和位置。需要说明的是，这里所列举的确定长度及位置的方式仅是几种示例，并不限于这几种示例，也可以采用其他的合理的确定方式，在此，不一一列举。
在一个可选的实施例中，上述UE确定位图中用于指示上述信息的位置包括以下至少之一：上述UE确定位图中的第1比特至第m-1比特用于指示生成信息；上述UE确定位图中的第1比特至第m-1比特用于指示用于标识UE的标识信息，第m+1比特至第n比特用于指示指示信息；上述UE确定位图中的第1比特至第m-1比特用于指示生成信息，位图中的第m+1比特至第k比特用于指示用于标识UE的标识信息，位图中的第k+1比特至第n比特用于指示指示信息；上述UE确定位图中的第1比特至第m-1比特用于指示生成信息，位图中的第m比特至第k比特用于指示指示信息，位图中的第k+1比特至第n比特用于指示用于标识UE的标识信息；其中，上述位图中的第m比特用于指示类型消息，其中，g2类型消息用于指示UE的随机接入的接入机制类型，且m>1，m为整数；n>m+3，且n为整数；n>k>m，k为整数。在该实施例中，可以利用第m比特的取值来指示UE的接入机制类型(例如，第m比特＝1时，指示竞争接入机制；第m比特＝0时，指示非竞争接入机制)，并且，在指示上述信息时，也可以根据m的取值来确定具体的指示位置，例如，上述位图中最低(m-1)个连续比特指示：序列位，当第m比特取值为0时，第n比特至第m+1比特取值为0，根据第1比特至第(m-1)比特的不同取值计算得到的该位图的所有值作为预留的专用preamble index使用(对应于上述的生成信息)。当第m比特取值为1时，第n比特至第m+1比特用于定义终端能力及操作特征(对应于上述的指示信息)，第1比特至第m比特的所有取值可以用于对具有相同终端能力 及操作特征的用户的进一步区分(对应于上述的标识信息)，或者，第1比特至第m-1比特的所有取值可以用于对具有相同终端能力及操作特征的用户的进一步区分。下面以在上述第m+1比特至第n比特指示上述指示信息为例，对指示的各个能力信息的指示位置进行说明：
可以选择第m+1比特至第n比特中的某一比特指示：UE是否支持多个子载波同时传输。
可以选择第m+1比特至第n比特中的某一比特指示：UE是否支持用户面优化方式。
可以选择第m+1比特至第n比特中的某两比特指示：UE所处覆盖等级信息，优选的，00，01，10，11的取值分别对应由好到差的四种不同覆盖等级。
可以选择第m+1比特至第n比特中的某两比特指示：终端将要发送的Msg3消息的格式。优选的，00，01，10，11的取值分别对应Msg3的四种不同格式(例如，数据大小由小到大的四种不同格式)。其中，上述的分别指示不同的能力的信息的比特的位置可以是互不相同的，但是需要说明的是，在实际应用时，也可以利用一个比特同时指示UE是否支持多个子载波同时传输，以及Msg3消息的格式，当UE支持多个子载波同时传输时，一般会对应大数据格式的Msg3。
对于第m+1比特至第n比特中未被占用的比特(即，不指示任何信息的比特)可以作为预留比特留以作未来扩展之用。
在相关技术中，为了区分终端的覆盖等级，相关技术中的协议对preamble index信息组进行了重新划分，使得基站可以通过终端使用的preamble index来获知其覆盖等级信息，但终端是否支持多个子载波同时传输的能力目前还无法上报，使得基站无法对后续流程进行合适及优化地操作。因此，在一个可选的实施例中，上述UE的能力可以包括UE支持多个子载波同时传输的能力。这样，UE在进行随机接入时，可以将自身知否支持多个子载波同时传输的能力也携带在位图中，从而使得基站能够明确UE的能力，以便后续的操作。在一个可选的实施例中，上述UE的能力包括以下至少之一：UE支持多个子载波同时传输的能力；UE支持用户面优化方式的能力；UE支持控制面优化方式的能力；和/或，上述UE的操作特征包括以下至少之一：UE使用控制面优化方式的操作特征；UE使用用户面优化方式的操作特征；UE将要传输的Msg3的格式；UE所处的覆盖等级信息。
在一个可选的实施例中，上述UE的两个以上能力和/或操作特征可以通过采用位图中不同的比特位置进行指示，或者，通过采用位图中同一个比特位置进行联合指示。
在一个可选的实施例中，上述UE的能力和/或操作特征信息用于指示UE所使用的随机接入资源。
上述的各实施例主要是从UE侧进行描述的，下面结合基站侧的相关操作对本发明进行举例说明：
在本实施例中提供了一种用户设备UE的能力和/或操作特征的确定方法，图3是根据本发明实施例的UE的能力和/或操作特征的确定方法的流程图，如图3所示，该流程包括如下 步骤：
步骤S302，基站接收来自UE的前导码索引，其中，该前导码索引为UE生成的；
步骤S304，上述基站根据前导码索引确定UE的能力和/或操作特征。
由上述步骤可知，UE进行随机接入的前导码索引preamble index是由UE自己生成的，从而无需基站侧生成再通知给UE，即，基站无需通过系统消息、专用消息向终端发送preamble index相关信息，从而减少空口资源的占用，同时，还可以使得UE根据自身情况生成对应的preamble index，无需基站进行preamble index组的划分以及根据UE的具体情况进行preamble index组的变动，从而解决了相关技术中UE无法尽早上报其能力和/或操作特征的问题，解决了由基站向UE提供可用的前导码索引所导致的占用空中接口资源以及无法灵活变动前导码索引组的问题，进而达到了减少空中接口资源的占用，以及无需基站生成、变动前导码索引组，降低信令开销的效果。
在一个可选的实施例中，上述基站在接收来自UE的前导码索引之后，该基站不再通过接口消息发送前导码索引信息。
在一个可选的实施例中，上述基站在接收来自UE的前导码索引之后，该基站向UE发送的随机接入响应的MAC包头中不再包含与UE的前导码索引关联的信息。
在一个可选的实施例中，上述基站根据前导码索引确定UE的能力和/或操作特征包括：基站解析上述前导码索引得到位图；上述基站获取位图中携带的用于指示UE的能力和/或操作特征的指示信息；根据上述指示信息确定UE的能力和/或操作特征。其中，上述的UE的能力可以包括UE支持多个子载波同时传输的能力。这样，UE在进行随机接入时，可以将自身是否支持多个子载波同时传输的能力也携带在位图中，从而使得基站能够明确UE的能力，以便后续的操作。其中，UE的能力和/或操作特征还可以包含别的信息，关于别的信息在后述的实施例中会进行详细的描述。
在一个可选的实施例中，上述基站获取位图中携带的用于指示UE的能力和/或操作特征的指示信息包括：基站确定位图中用于指示上述指示信息的位置；基站获取用于指示上述指示信息的位置上指示的指示信息。
在一个可选的实施例中，上述基站确定上述位图中用于指示上述指示信息的位置包括以下至少之一：基站通过协议中预设的配置确定用于指示上述指示信息的位置；基站通过接收的来自UE的通知消息确定用于指示上述指示信息的位置；基站通过与所述UE协商的方式确定用于指示上述指示信息的位置；所述基站通过所述基站预先定义的用于指示上述指示信息的位置确定用于指示上述指示信息的位置。
在一个可选的实施例中，上述基站在接收来自UE的前导码索引之前，该方法还包括以下至少之一：基站向UE发送指示消息，其中，该指示消息用于指示UE是否生成预留的专用前导码索引；基站将用于生成上述前导码索引的位图的长度以及位图中用于指示以下信息至少之一的位置通知给UE：用于生成预留的专用前导码索引的生成信息、用于指示上述UE的能 力和/或操作特征的指示信息。
在一个可选的实施例中，上述UE的能力包括以下至少之一：UE支持多个子载波同时传输的能力；UE支持用户面优化方式的能力；UE支持控制面优化方式的能力；和/或，上述UE的操作特征包括以下至少之一：UE使用控制面优化方式的操作特征；UE使用用户面优化方式的操作特征；UE将要传输的Msg3的格式；所述UE所处的覆盖等级信息。
下面结合具体实施例对本发明进行说明：
实施例1：
系统设置n＝10，m＝4，用第m+1比特指示终端是否支持多个子载波同时传输，用第m+2比特指示终端是否支持用户面优化方式。同时传输设置4个覆盖等级，终端不可以使用预留的专用preamble index。
当一个处于第二覆盖等级，后续需要发送最小格式的Msg3，且支持多个子载波同时传输及支持用户面优化方式的终端发起随机接入时，它可以使用的preamble index范围如图4所示，图4是根据本发明实施例的位图的具体结构示意图一。
当一个处于第一覆盖等级，后续需要发送最小格式的Msg3，且支持多个子载波同时传输，但不支持用户面优化方式的终端发起随机接入时，它可以使用的preamble index范围如图5所示，图5是根据本发明实施例的位图的具体结构示意图二。
实施例2
在该实施例中可以定义如图2所示的终端能力及操作特征位图。
优选地，终端可以将基于该位图计算得到的值作为preamble index使用。
优选地，基站可以根据收到的preamble index解析得到位图形式并据此推导出终端能力及操作特征。
优选地，n和m的取值可以在协议中配置，也可以由基站根据相关策略配置并通过空中接口消息通知终端。优选的，m>1，n>m+3。
基站在收到终端的随机接入信息后，会向终端发送随机接入响应消息。
优选地，当基站配置m取值>1时，表明位图形式只有部分用于指示终端能力及操作特征。基站选择解析得到的位图的全部或部分比特，将其对应取值填写在随机接入响应的媒体接入控制(Media Access Control，简称为MAC)包头中包含的随机接入前导码标识(Random Access Preamble Identifier，简称为RAPID)字段中，用于终端将收到的随机接入响应消息与自己发送的随机接入信息进行匹配。
优选地，当基站配置m取值＝1时，表明位图形式全部用于指示终端能力及操作特征。基站可以通过空中接口消息指示不再将随机接入响应消息中的RAPID字段与终端发送的preamble index关联。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本发明各个实施例所述的方法。
在本实施例中还提供了一种接入装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图6是根据本发明实施例的接入装置的结构框图，该装置可以应用于用户设备UE中，如图6所示，该装置包括生成模块62和接入模块64，下面对该装置进行说明。
生成模块62，设置为生成前导码索引；接入模块64，连接至上述生成模块62，设置为利用生成的上述前导码索引接入基站。
在一个可选的实施例中，上述生成模块62可以通过如下方式生成前导码索引：确定位图，其中，该位图至少用于指示以下信息至少之一：用于生成预留的专用前导码索引的生成信息、用于指示所述UE的能力和/或操作特征的指示信息；根据上述位图生成前导码索引。
在一个可选的实施例中，上述生成模块62可以通过如下方式确定位图：确定上述位图的长度以及位图中用于指示信息的位置；生成上述长度的位图，并将利用上述位图中对应的位置处的比特指示上述信息。
在一个可选的实施例中，上述生成模块62可以通过如下方式确定位图的长度以及位图中用于指示上述信息的位置包括以下至少之一：通过协议中预设的配置确定上述长度和位置；通过接收的来自所述基站的通知消息确定上述长度和位置；通过与基站协商的方式确定上述长度和位置；通过UE定义上述长度和位置。
在一个可选的实施例中，上述UE确定的位图中用于指示所述信息的位置包括以下至少之一：确定位图中的第1比特至第m-1比特用于指示生成信息；确定位图中的第1比特至第m-1比特用于指示用于标识UE的标识信息，第m+1比特至第n比特用于指示指示信息；确定位图中的第1比特至第m-1比特用于指示上述生成信息，上述位图中的第m+1比特至第k比特用于指示用于标识UE的标识信息，上述位图中的第k+1比特至第n比特用于指示上述指示信息；确定上述位图中的第1比特至第m-1比特用于指示上述生成信息，位图中的第m比特至第k比特用于指示上述指示信息，位图中的第k+1比特至第n比特用于指示用于标识上述UE的标识信息；其中，位图中的第m比特用于指示类型消息，其中，该类型消息用于指示UE的随机接入的接入机制类型的类型，且m>1，m为整数；所述n>m+3，且n为整数；n>k>m，k为整数。
在一个可选的实施例中，上述UE的能力包括以下至少之一：上述UE支持多个子载波同时传输的能力；UE支持用户面优化方式的能力；UE支持控制面优化方式的能力；和/或，上述UE的操作特征包括以下至少之一：UE使用控制面优化方式的操作特征；UE使用用户面优化方式的操作特征；UE将要传输的Msg3的格式；UE所处的覆盖等级信息。
在一个可选的实施例中，上述UE的两个以上能力和/或操作特征通过采用上述位图中不同的比特位置进行指示，或者，通过采用上述位图中同一个比特位置进行联合指示。
在一个可选的实施例中，上述UE的能力和/或操作特征信息用于指示UE所使用的随机接入资源。
图7是根据本发明实施例的UE的能力和/或操作特征的确定装置的结构框图，该装置可以应用于基站中，如图7所示，该装置包括接收模块72和确定模块74，下面对该装置进行说明。
接收模块72，设置为接收来自UE的前导码索引，其中，该前导码索引为UE生成的；确定模块74，连接至上述接收模块72，设置为根据上述前导码索引确定UE的能力和/或操作特征。
在一个可选的实施例中，上述基站在接收来自UE的前导码索引之后，基站不再通过接口消息发送前导码索引信息。
在一个可选的实施例中，上述基站在接收来自UE的前导码索引之后，基站向UE发送的随机接入响应的MAC包头中不再包含与UE的前导码索引关联的信息。
在一个可选的实施例中，上述确定模块74可以通过如下方式确定UE的能力和/或操作特征：解析上述前导码索引得到位图；获取上述位图中携带的用于指示UE的能力和/或操作特征的指示信息；根据上述指示信息确定UE的能力和/或操作特征。
在一个可选的实施例中，上述确定模块74可以通过如下方式获取位图中携带的用于指示UE的能力和/或操作特征的指示信息：确定上述位图中用于指示上述指示信息的位置；获取用于指示上述指示信息的位置上指示的指示信息。
在一个可选的实施例中，上述确定模块74确定上述位图中用于指示上述指示信息的位置包括以下至少之一：通过协议中预设的配置确定用于指示上述指示信息的位置；通过接收的来自UE的通知消息确定用于指示上述指示信息的位置；通过与上述UE协商的方式确定用于指示上述指示信息的位置；通过上述基站预先定义的用于指示上述指示信息的位置确定用于指示上述指示信息的位置。
在一个可选的实施例中，上述装置还包括以下模块至少之一：
第一处理模块，连接至上述接收模块72，设置为在接收来自UE的前导码索引之前，向UE发送指示消息，其中，该指示消息用于指示UE是否生成预留的专用前导码索引；
第二处理模块，连接至上述接收模块72，设置为在接收来自UE的前导码索引之前，将 用于生成上述前导码索引的位图的长度以及位图中用于指示以下信息至少之一的位置通知给上述UE：用于生成预留的专用前导码索引的生成信息、用于指示UE的能力和/或操作特征的指示信息。
在一个可选的实施例中，上述UE的能力包括以下至少之一：UE支持多个子载波同时传输的能力；UE支持用户面优化方式的能力；UE支持控制面优化方式的能力；和/或，上述UE的操作特征包括以下至少之一：UE使用控制面优化方式的操作特征；UE使用用户面优化方式的操作特征；UE将要传输的Msg3的格式；UE所处的覆盖等级信息。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述模块分别位于多个处理器中。
本发明的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S11，用户设备UE生成前导码索引；
S12，上述UE利用生成的前导码索引接入基站。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
S21，基站接收来自UE的前导码索引，其中，该前导码索引为UE生成的；
S22，上述基站根据前导码索引确定UE的能力和/或操作特征。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random Access Memory，简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行上述各方法实施例中的步骤。
可选地，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
通过上述各实施例，可以以更加灵活的方式让UE在随机接入阶段上报其能力及操作特征，并且减少基站发送的系统消息内容，进而减少空中接口信令开销。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
如上所述，本发明实施例提供的一种接入方法、UE的能力和/或操作特征的确定方法及装置具有以下有益效果：解决了由基站向UE提供可用的前导码索引所导致的占用空中接口资源以及无法灵活变动前导码索引组的问题，进而达到了减少空中接口资源的占用，以及无需基站生成、变动前导码索引组，降低信令开销的效果。

Claims (18)

  1. 一种接入方法，包括：
    用户设备UE生成前导码索引；
    所述UE利用生成的所述前导码索引接入基站。
  2. 根据权利要求1所述的方法，其中，所述UE生成所述前导码索引包括：
    所述UE确定位图，其中，所述位图至少用于指示以下信息至少之一：用于生成预留的专用前导码索引的生成信息、用于指示所述UE的能力和/或操作特征的指示信息；
    所述UE根据所述位图生成所述前导码索引。
  3. 根据权利要求2所述的方法，其中，所述UE确定所述位图包括：
    所述UE确定所述位图的长度以及所述位图中用于指示所述信息的位置；
    所述UE生成所述长度的所述位图，并将利用所述位图中对应位置处的比特指示所述信息。
  4. 根据权利要求3所述的方法，其中，所述UE确定所述位图的长度以及所述位图中用于指示所述信息的位置包括以下至少之一：
    所述UE通过协议中预设的配置确定所述长度和所述位置；
    所述UE通过接收的来自所述基站的通知消息确定所述长度和所述位置；
    所述UE通过与基站协商的方式确定所述长度和所述位置；
    所述UE定义所述长度和所述位置。
  5. 根据权利要求3所述的方法，其中，所述UE确定所述位图中用于指示所述信息的位置包括以下至少之一：
    所述UE确定所述位图中的第1比特至第m-1比特用于指示所述生成信息；
    所述UE确定所述位图中的第1比特至第m-1比特用于指示用于标识所述UE的标识信息，所述第m+1比特至第n比特用于指示所述指示信息；
    所述UE确定所述位图中的第1比特至第m-1比特用于指示所述生成信息，所述位图中的第m+1比特至第k比特用于指示用于标识所述UE的标识信息，所述位图中的第k+1比特至第n比特用于指示所述指示信息；
    所述UE确定所述位图中的第1比特至第m-1比特用于指示所述生成信息，所述位图中的第m比特至第k比特用于指示所述指示信息，所述位图中的第k+1比特至第n比特用于指示用于标识所述UE的标识信息；
    其中，所述位图中的第m比特用于指示类型消息，其中，所述类型消息用于指示所 述UE的随机接入的接入机制类型，且m>1，m为整数；所述n>m+3，且n为整数；所述n>k>m，k为整数。
  6. 根据权利要求2至5中任一项所述的方法，其中，
    所述UE的能力包括以下至少之一：所述UE支持多个子载波同时传输的能力；所述UE支持用户面优化方式的能力；所述UE支持控制面优化方式的能力；和/或，
    所述UE的操作特征包括以下至少之一：所述UE使用控制面优化方式的操作特征；所述UE使用用户面优化方式的操作特征；所述UE将要传输的Msg3的格式；所述UE所处的覆盖等级信息。
  7. 根据权利要求6所述的方法，其中，所述UE的两个以上能力和/或操作特征通过采用所述位图中不同的比特位置进行指示，或者，通过采用所述位图中同一个比特位置进行联合指示。
  8. 根据权利要求2至7中任一项所述的方法，其中，所述UE的能力和/或操作特征信息用于指示所述UE所使用的随机接入资源。
  9. 一种用户设备UE的能力和/或操作特征的确定方法，包括：
    基站接收来自UE的前导码索引，其中，所述前导码索引为所述UE生成的；
    所述基站根据所述前导码索引确定所述UE的能力和/或操作特征。
  10. 根据权利要求9所述的方法，其中，所述基站在接收来自所述UE的所述前导码索引之后，所述基站不再通过接口消息发送前导码索引信息。
  11. 根据权利要求9所述的方法，其中，所述基站在接收来自所述UE的所述前导码索引之后，所述基站向所述UE发送的随机接入响应的MAC包头中不再包含与所述UE的前导码索引关联的信息。
  12. 根据权利要求9所述的方法，其中，所述基站根据所述前导码索引确定所述UE的能力和/或操作特征包括：
    所述基站解析所述前导码索引得到位图；
    所述基站获取所述位图中指示的用于指示所述UE的能力和/或操作特征的指示信息；
    根据所述指示信息确定所述UE的能力和/或操作特征。
  13. 根据权利要求12所述的方法，其中，所述基站获取所述位图中指示的用于指示所述UE的能力和/或操作特征的所述指示信息包括：
    所述基站确定所述位图中用于指示所述指示信息的位置；
    所述基站获取用于指示所述指示信息的位置上指示的所述指示信息。
  14. 根据权利要求13所述的方法，其中，所述基站确定所述位图中用于指示所述指示信息的位置包括以下至少之一：
    所述基站通过协议中预设的配置确定用于指示所述指示信息的位置；
    所述基站通过接收的来自所述UE的通知消息确定用于指示所述指示信息的位置；
    所述基站通过与所述UE协商的方式确定用于指示所述指示信息的位置；
    所述基站通过所述基站预先定义的用于指示所述指示信息的位置确定用于指示所述指示信息的位置。
  15. 根据权利要求9所述的方法，其中，所述基站在接收来自所述UE的所述前导码索引之前，所述方法还包括以下至少之一：
    所述基站向所述UE发送指示消息，其中，所述指示消息用于指示所述UE是否生成预留的专用前导码索引；
    所述基站将用于生成所述前导码索引的位图的长度以及所述位图中用于指示以下信息至少之一的位置通知给所述UE：用于生成预留的专用前导码索引的生成信息、用于指示所述UE的能力和/或操作特征的指示信息。
  16. 根据权利要求9至15中任一项所述的方法，其中，
    所述UE的能力包括以下至少之一：所述UE支持多个子载波同时传输的能力；所述UE支持用户面优化方式的能力；所述UE支持控制面优化方式的能力；和/或，
    所述UE的操作特征包括以下至少之一：所述UE使用控制面优化方式的操作特征；所述UE使用用户面优化方式的操作特征；所述UE将要传输的Msg3的格式；所述UE所处的覆盖等级信息。
  17. 一种接入装置，应用于用户设备UE中，包括：
    生成模块，设置为生成前导码索引；
    接入模块，设置为利用生成的所述前导码索引接入基站。
  18. 一种用户设备UE的能力和/或操作特征的确定装置，应用于基站中，包括：
    接收模块，设置为接收来自UE的前导码索引，其中，所述前导码索引为所述UE生成的；
    确定模块，设置为根据所述前导码索引确定所述UE的能力和/或操作特征。
PCT/CN2017/072836 2016-02-05 2017-02-03 接入方法、ue的能力和/或操作特征的确定方法及装置 WO2017133666A1 (zh)

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CN101873713A (zh) * 2009-04-24 2010-10-27 中兴通讯股份有限公司 随机接入方法、终端
CN103974446A (zh) * 2013-01-30 2014-08-06 华为技术有限公司 一种随机接入方法及用户设备
CN105101454A (zh) * 2015-08-14 2015-11-25 电信科学技术研究院 一种mtc ue随机接入的方法及装置

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US20090268666A1 (en) * 2008-04-28 2009-10-29 Lg Electronics Inc. Random access channel preamble selection
CN101873713A (zh) * 2009-04-24 2010-10-27 中兴通讯股份有限公司 随机接入方法、终端
CN103974446A (zh) * 2013-01-30 2014-08-06 华为技术有限公司 一种随机接入方法及用户设备
CN105101454A (zh) * 2015-08-14 2015-11-25 电信科学技术研究院 一种mtc ue随机接入的方法及装置

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