CN101516104B - Control signaling transmission method and system, base station and user equipment - Google Patents

Abstract

The embodiment of the invention relates to a method for controlling signaling transmission, a system, a base station and a user facility; wherein, the method for controlling signaling transmission comprises: controlling signaling of a network side to be sent is obtained, the controlling signaling comprises radio source controlling signaling and/or IP multimedia system signaling; the controlling signaling gains a resource block which bears the controlling signaling; the descending controlling information of the controlling signaling is transmitted by a physical downlink controlling channel, and the resource block is transmitted by a physical downlink shared channel. The embodiment of the invention separately transmits the controlling signaling and business data, can reduce the number of the resource block of transmitting controlling signaling and the exponent number of modulation coding, thus increasing the transmission speed and reliability of the signaling transmission of the radio source controlling signaling and/or IP multimedia system.

Description

Control signaling transmission method and system, base station and user equipment

technical field

Embodiments of the present invention relate to the field of communication technologies, and in particular, to a control signaling transmission method and system, a base station, and user equipment. the

Background technique

In the Long Term Evolution (hereinafter referred to as: LTE), downlink physical channels are divided into: Physical Control Format Indicator Channel (Physical Control Format Indicator Channel; hereinafter referred to as: PCFICH), Physical Hybrid Automatic Repeat Request Indicator Channel (PhysicalHybrid Admission Request Indicator Channel; hereinafter referred to as: PHICH), Physical Broadcast Channel (Physical Broadcast Channel; hereinafter referred to as: PBCH), Physical Downlink Control Channel (Physical Downlink Control Channel; hereinafter referred to as: PDCCH) and Physical Downlink Shared Channel (Physical Downlink Shared Channel); Hereinafter referred to as: PDSCH). The uplink physical channel is divided into: a physical uplink control channel (Physical Uplink Control Channel; hereinafter referred to as: PUCCH) and a physical uplink shared channel (Physical Uplink Shared Channel; hereinafter referred to as: PUSCH). In the prior art, the transmission content of PCFICH, PHICH, PDCCH in the downlink direction and PUCCH in the uplink direction is limited to physical layer information, and the transmission content of PBCH is limited to information block (Master Information Block; hereinafter referred to as MIB). If radio resource control (Radio Resource Control; hereinafter referred to as: RRC) signaling or IP Multimedia System (IP Multimedia Subsystem; hereinafter referred to as: IMS) signaling needs to be delivered, it needs to share the physical PDSCH (downlink) or PUSCH (uplink) with the data. channel, and the RRC/IMS signaling and service data are transmitted in the same transport block (Transport Block; TB for short) using the same modulation mode, coding rate and power as the service data. the

The inventor finds at least the following problems in the prior art in the process of realizing the present invention:

Since PDSCH may have a certain probability of transmission failure, when RRC/IMS signaling and other control signaling and data are transmitted together, due to the large amount of total data to be transmitted, the reliability of control signaling transmission and the transmission rate are slow. question. the

Contents of the invention

Embodiments of the present invention provide a control signaling transmission method and system, a base station, and user equipment, to solve the problems of slow transmission rate and low reliability of control signaling caused by the joint transmission process of control signaling and data, and improve transmission Controls the rate and reliability of signaling. the

An embodiment of the present invention provides a control signaling transmission method, including:

Obtain the control signaling to be sent by the network side, where the control signaling includes radio resource control signaling and/or IP multimedia system signaling, and the control signaling to be sent by the network side specifically includes: if the signaling radio bearer SRB There is data in the radio link control RLC cache, and the data in the RLC cache of the SRB is acquired, and the data in the RLC cache of the SRB is radio resource control signaling; or if the radio link control RLC cache of the data radio bearer DRB There is data in, and the quality of service level identifier is the level identifier corresponding to the IP multimedia system signaling, and the data in the RLC cache of the DRB is obtained, and the data in the RLC cache of the DRB is the IP multimedia system signaling;

Obtain a resource block carrying the control signaling according to the control signaling;

The downlink control information of the control signaling is sent through a physical downlink control channel, and the resource block is sent through a physical downlink shared channel. the

An embodiment of the present invention further provides a control signaling transmission method, including:

Reporting the buffer status report of the user equipment, the buffer status report includes the data amount of the control signaling, and the control signaling includes radio resource control signaling and/or IP multimedia system signaling;

receiving downlink control information of the control signaling from a physical downlink control channel, where the downlink control information includes resource block information determined by the base station according to the data amount of the control signaling;

According to the resource block information, the resource block carrying the control signaling is sent from the physical uplink shared channel. the

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

The first obtaining module is used to obtain the control signaling to be sent by the network side, and the control signaling includes radio resource control signaling and/or IP multimedia system signaling;

A second obtaining module, configured to obtain resource blocks corresponding to the control signaling according to the control signaling;

The first sending module is configured to send the downlink control information of the control signaling through a physical downlink control channel, and send the resource block through a physical downlink shared channel;

Wherein, the first acquisition module includes:

The radio resource control signaling submodule is configured to acquire the data in the RLC cache of the SRB through the first acquisition module if there is data in the radio link control RLC cache of the signaling radio bearer SRB, and the data in the RLC cache of the SRB The data is radio resource control signaling; and/or

The IP multimedia system signaling submodule is used to obtain through the first acquisition module if there is data in the radio link control RLC cache of the data radio bearer DRB, and the quality of service level identifier is the level identifier corresponding to the IP multimedia system signaling The data in the RLC cache of the DRB, the data in the RLC cache of the DRB is IP multimedia system signaling. the

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

A reporting module, configured to report the buffer status report of the user equipment, the buffer status report includes the data amount of control signaling, and the control signaling includes radio resource control signaling and/or IP multimedia system signaling;

The second receiving module is used to receive the downlink control information of the control signaling from the physical downlink control channel, and the downlink control information includes resource block information determined by the base station according to the data amount of the control signaling;

The second sending module is configured to send the resource block carrying the control signaling from the physical uplink shared channel according to the resource block information. the

The embodiment of the present invention also provides a control signaling transmission system, including:

any of the base stations mentioned above;

The user equipment is configured to report the buffer status report of the user equipment to the base station, the buffer status report includes the data amount of control signaling, and the control signaling includes radio resource control signaling and/or IP multimedia system signaling , receiving downlink control information of the control signaling from a physical downlink control channel, the downlink control information including resource block information determined by the base station according to the data amount of the control signaling, and according to the resource block information, from the physical uplink shared The channel sends the resource block carrying the control signaling to the base station. the

Embodiments of the present invention provide a control signaling transmission method and system, a base station, and user equipment. Separately transmitting control signaling and service data can reduce the number of resource blocks carrying transmission signaling, thereby reducing the coding and modulation order. The reliability and rate of control signaling transmission are improved. the

Description of drawings

FIG. 1 is a schematic flow diagram of a control signaling transmission method provided in Embodiment 1 of the present invention;

FIG. 2 is a schematic flowchart of a control signaling transmission method provided in Embodiment 2 of the present invention;

FIG. 3 is a schematic flowchart of a control signaling transmission method provided in Embodiment 3 of the present invention;

FIG. 4 is a schematic structural diagram of a base station provided in Embodiment 4 of the present invention;

FIG. 5 is a schematic structural diagram of a base station provided in Embodiment 5 of the present invention;

FIG. 6 is a schematic structural diagram of a user equipment provided in Embodiment 6 of the present invention;

FIG. 7 is a schematic structural diagram of a control signaling transmission system provided by Embodiment 7 of the present invention. the

Detailed ways

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. the

Embodiment one

Fig. 1 is a schematic flow chart of a control signaling transmission method provided in Embodiment 1 of the present invention. As shown in Fig. 1, the control signaling transmission method includes the following steps:

Step 101. Obtain control signaling to be sent by the network side, where the control signaling includes radio resource control signaling and/or IP multimedia system signaling. the

In the LTE system, control signaling transmission needs to be performed between the network side and the user equipment, wherein the control signaling may include radio resource control signaling and/or IP multimedia system signaling, that is, RRC signaling and/or IMS signaling, The transmission of control signaling or service data from the network side to the user equipment is called downlink transmission, and the transmission of control signaling or service data from the user equipment to the network side is called uplink transmission. In the embodiment of the present invention, the control signaling refers to the general term of RRC signaling and/or IMS signaling. the

During downlink transmission, the network side can detect whether there is control signaling to be transmitted, determine the type of control signaling that exists, and obtain information such as the data volume of the control signaling. The data volume is the byte length or bit length of the control signaling. length. For example, when there is data in the radio link control (Radio Link Control; hereinafter referred to as: RLC) buffer of the Signaling Radio Bearer (Signaling Radio Bearer; hereinafter referred to as: SRB), the data in the RLC buffer of the SRB may be obtained, and the SRB The data in the RLC buffer of the DRB is radio resource control signaling; when there is data in the RLC buffer of the data radio bearer (Data Radio Bearer; hereinafter referred to as: DRB), according to the quality of service level identifier of the data in the RLC buffer corresponding to the DRB (Quality of Service Class Identifier; hereinafter referred to as: QCI) to determine whether the data in the RLC cache of the DRB is IMS signaling, for example, if the QCI corresponding to the IMS signaling is "5", it corresponds to the QCI of the data in the RLC cache of the DRB When the level identifier of the DRB is "5", the data in the RLC cache of the DRB can be obtained, and the data in the RLC cache of the DRB is IMS signaling. the

Step 102. Acquire resource blocks bearing the control signaling according to the control signaling. the

During downlink transmission, when there is control signaling that needs to be transmitted on the network side, resource blocks need to be obtained to bear the control signaling. the

Preferably, a quadrature phase shift keying (Quadrature Phase Shift Keying; hereinafter referred to as: QPSK) modulation method can be used to modulate the control signaling to obtain a transmission block corresponding to the control signaling, and the size of the transmission block is The data volume of the above-mentioned control signaling. When there is a control signaling to be transmitted on the network side that needs to be sent to a certain user equipment (User Equipment; hereinafter referred to as UE), allocate a transmission block for the control signaling to be transmitted, determine the size of the transmission block, and determine the size of the transmission block. After the size is determined, the control signaling data is filled into the transport block by bit. If the data volume of the control signaling is relatively large, multiple transport blocks may also be allocated for the control signaling. The network side can determine the resource block (Resource Block; RB for short) carrying the transport block according to the size of the transport block, and after encoding and multiplexing the transport block, map the transport block to the resource block, where the transport block The corresponding relationship between the size of RB and the number of resource blocks can be determined according to the transport block size table (Transport block size table) in the LTE protocol. There are two dimensions in the transport block size table, one dimension is the number of RBs, and the other dimension Corresponding to the Modulation and Coding Schema (hereinafter referred to as MCS), the number of RBs and the MCS jointly determine the size of the transport block. the

Step 103: Send the downlink control information of the control signaling through a physical downlink control channel, and send the resource block through a physical downlink shared channel. the

The network side notifies the UE of the downlink control information (Downlink Control Information; hereinafter referred to as DCI) of the control signaling through the physical downlink control channel (PDCCH), wherein the DCI of the control signaling may include the information of the resource block carrying the control signaling Then the network side sends the resource blocks to the UE through the Physical Downlink Shared Channel (PDSCH). After the network side sends the control signaling, the transmission power of the network side transmitter can be reduced before sending the service data. the

Preferably, the network side can use QPSK modulation to increase the transmission power of the resource block sent by the network side, and then send the resource block carrying the control signaling through the physical downlink shared channel, thereby improving the reliability of the control signaling transmission. After the resource blocks carrying the control signaling are sent, if there is service data to be transmitted at the transmitter on the network side, the transmit power of the transmitter can be reduced before sending the service data. the

In this embodiment, the control signaling is transmitted separately from the service data, and a separate transmission block is allocated for the control signaling. The amount of data in the transmission block is small, and the number of resource blocks for transmission signaling corresponding to the transmission block is also small; further , this embodiment can adopt a lower coding and modulation order, thereby improving the transmission rate of control signaling transmission; further, QPSK modulation can be used for modulation, and the transmission power of the transmitting end is increased before sending the control signaling, thereby improving This improves the reliability of the control signaling sent by the transmitter, reduces the number of retransmissions, and reduces the transmission delay. the

Example two

FIG. 2 is a schematic flow diagram of a control signaling transmission method provided in Embodiment 2 of the present invention. As shown in FIG. 2, the control signaling transmission method can be implemented on a base station, including the following steps:

Step 111, the base station obtains the control signaling existing in the base station to be sent, and the control signaling includes RRC signaling and/or IMS signaling. the

Step 112: If there is data in the RLC cache of the signaling radio bearer SRB, the base station acquires the data in the RLC cache of the SRB, and the data in the RLC cache of the SRB is RRC signaling. the

Step 113, if there is data in the radio link control RLC cache of the data radio bearer DRB, and the quality of service level identifier is the level identifier corresponding to the IMS signaling, then the base station obtains the data in the RLC cache of the DRB, and the DRB's The data in the RLC cache is IMS signaling. the

According to the above step 112 and step 113, during downlink transmission, the module responsible for scheduling in the downlink direction in the base station can obtain the type of control signaling, such as RRC signaling or IMS signaling; it can also obtain the data amount, modulation and coding of the control signaling method and other information. Wherein, there is no timing requirement for step 112 and step 113, and step 112 or step 113 may be executed first, or executed at the same time. the

Step 114, the base station adopts the quadrature phase shift keying QPSK modulation mode to obtain the transmission block corresponding to the control signaling in the base station. the

After the base station obtains the data volume of the control signaling, it can use the QPSK modulation method to determine the size of the transmission block of the control signaling according to the data volume of the control signaling, and fill in the data of the control signaling from front to back to the transmission block. block. If the data volume of the control signaling is relatively large, multiple transport blocks may also be allocated for the control signaling. the

Step 115, the base station obtains the resource block bearing the transport block according to the transport block. the

The base station can determine the resource block carrying the transport block according to the size of the transport block, and after encoding and multiplexing the transport block, map the transport block to the resource block, and carry the transport block through the resource block, that is, carry the resource block through the resource block Control signaling. the

Step 116, the base station increases the transmit power for sending the resource block, and sends the resource block carrying the control signaling through the physical downlink shared channel. the

The base station increases the sending power of the transmitter, and sends the resource block carrying the control signaling through the antenna on the physical downlink shared channel. Further, after the resource block is sent, the base station may reduce the sending power of the transmitter to send other data. the

In this embodiment, the base station transmits the control signaling and service data separately, adopts QPSK modulation mode for modulation, and allocates a separate transmission block for the control signaling. The data volume of the transmission block is small, and the resources for transmission signaling corresponding to the transmission block The number of blocks is also small, and a lower coding and modulation order can be used, thereby increasing the transmission rate of control signaling transmission; further, if the transmission power of the transmitting end is increased before sending the control signaling, the transmission control of the transmitting end can be further improved. The reliability of signaling reduces the number of retransmissions and reduces the delay of transmission. the

Embodiment three

FIG. 3 is a schematic flow chart of a control signaling transmission method provided in Embodiment 3 of the present invention. As shown in FIG. 3, the control signaling transmission method includes the following steps:

Step 201: Report a cache status report of the user equipment, the cache status report includes the data amount of control signaling, and the control signaling includes radio resource control signaling and/or IP multimedia system signaling. the

The reported UE cache status report may generally include information such as the type of control signaling to be sent in the UE, the data volume of the control signaling, and the like. the

Preferably, before the UE reports the buffer status report of the user equipment to the base station, when the base station sends an RRC connection establishment message (Connect Setup) to the UE, the logical channel group may be pre-configured. Here are two examples of configuring logical channel groups:

Example 1. The base station configures the SRB carrying RRC signaling in the first logical channel group, configures the DRB carrying IMS signaling in the second logical channel group, sets the priority of the first logical channel group to the highest, and sets the priority of the second logical channel group to the highest. The priority of the channel group is set to be the second highest, and the cache status report includes the amount of data in the first logical channel group and the amount of data in the second logical channel group. the

Since the logical channel corresponding to the SRB of the RRC signaling is a dedicated control channel (Dedicated Control Chanel; hereinafter referred to as: DCCH), the logical channel corresponding to the DRB of the IMS signaling is a dedicated traffic channel (Dedicated Traffic Chanel; hereinafter referred to as: DTCH). When the base station on the network side sends the RRC connection establishment message to the UE, it can first configure the SRB of the RRC signaling and the DRB of the IMS signaling in two different logical channel groups (the first logical channel group and the second logical channel group). ), that is, configure all DCCHs corresponding to SRBs of RRC signaling in the first logical channel group, and configure all DTCHs corresponding to DRBs of IMS signaling in the second logical channel group. Among them, the priority of the first logical channel group is set to the highest, the priority of the second logical channel group is set to the second highest, and the priority data volume of the first and second logical channel groups can be set to unlimited, that is, the maximum amount of data that can be stored The amount of data is unlimited. the

During uplink transmission, the network side can obtain the type and control signaling of the control signaling to be transmitted in the first and second logical channel groups from the received buffer status report (BufferStatus Report; hereinafter referred to as: BSR) reported by the UE. Order data volume and other information. For example: if the data volume of the first logical channel group is in the BSR, the control signaling to be transmitted in the UE is RRC signaling, and the data volume of the RRC signaling is the data volume in the first logical channel group; if the BSR is For the data volume of the second logical channel group, the control signaling to be transmitted in the UE is IMS signaling, and the data volume of the IMS signaling is the data volume in the second logical channel group; if the BSR includes both the first logical channel group The amount of data includes the amount of data of the second logical channel group, then the control signaling to be transmitted in the UE includes both RRC signaling and IMS signaling. In the subsequent data transmission process, the order of priority can be first Transmit RRC signaling, then IMS signaling, and finally transmit service data other than RRC signaling/IMS signaling. the

Example 2. The SRB carrying radio resource control signaling and the DRB carrying IP multimedia system signaling are configured in the third logical channel group, and the priority is set to the highest, and the cache status report includes the third logical channel The amount of data in the group. the

When the base station sends the RRC connection establishment message to the UE, it can also configure the SRB of the RRC signaling and the DRB of the IMS signaling in a logical channel group, that is, the third logical channel group, that is, all DCCHs corresponding to the SRB of the RRC signaling All DTCHs corresponding to the DRBs of the IMS signaling are configured in the second logical channel group. At this time, the base station reports information such as the amount of control signaling data to be transmitted in the third logical channel group included in the BSR reported by the UE. The amount of control signaling data to be transmitted is the amount of data in the third logical channel group. Set the priority of the third logical channel group to the highest, and set the amount of priority data to unlimited. In the subsequent transmission process, all the control signaling data of the third logical channel group can be transmitted after priority transmission through resource blocks. data. During uplink transmission, the module responsible for processing uplink scheduling of the base station obtains information such as whether the UE has control signaling to be transmitted, the type and data volume of the existing control signaling, etc. from the received BSR sent by the UE. The base station receives the BSR reported by the UE, and acquires a third data volume from the BSR, where the third data volume is the data volume of the control signaling in the logical channel group. The logical channel group may be pre-configured when the base station sends an RRC connection establishment message to the UE. the

Step 202: Receive downlink control information of the control signaling from a physical downlink control channel, where the downlink control information includes resource block information determined by the base station according to the data amount of the control signaling. the

The UE can receive the downlink control information DCI of the control signaling sent by the base station from the physical downlink control channel. The DCI includes information such as the size of the transport block, resource block information, and modulation and coding scheme determined by the base station according to the data amount of the control signaling. the

Preferably, after the base station receives the BSR reported by the UE, it can use the QPSK modulation method to obtain the size of the transmission block corresponding to the control signaling for the control signaling. The size of the transmission block is the data volume of the control signaling, and then according to the transmission block The size determines the resource block information. The base station sends the DCI of the control signaling to the UE through the physical downlink control channel (PDCCH). The DCI of the control signaling may include information such as the size of the transport block allocated by the base station for the control signaling, resource block information, and a modulation and coding scheme. The size of the transport block is the data volume of the control signaling, and the resource block information can be determined according to information such as the size of the transport block and the modulation and coding scheme. the

Step 203: According to the resource block information, send the resource block carrying the control signaling from the physical uplink shared channel. the

During uplink transmission, after receiving the DCI of the control signaling sent by the base station through the PDCCH, the UE may send resource blocks carrying the control signaling to the base station through a physical uplink shared channel (PUSCH). In order to further improve the reliability of transmitting the control signaling, preferably, the transmit power of the UE may be increased first, and then the PUSCH sends resource blocks carrying the control signaling to the base station. the

Further, after the UE sends the resource blocks, the transmit power of the UE may be reduced, and then the service data is sent. The method for reducing the transmission power of the UE to send service data may be: Method 1: After the resource block carrying the control signaling is sent from the UE to the base station, the base station notifies the UE to reduce power while notifying the UE to transmit data. Method 2: After sending the resource blocks carrying the control signaling from the UE to the base station, the base station sends a Transmitted Power Control (TPC) control command to the UE, and the UE reduces power after receiving the TPC control command, and then Carry out the transmission of business data. the

In this embodiment, after reporting the BSR to the base station, the UE determines the resource block information used for separate signaling transmission, and can transmit control signaling and service data separately, increasing the transmission rate of control signaling; reducing the resource blocks carrying control signaling number, thereby reducing the coding and modulation order, and improving the reliability and rate of the UE sending control signaling to the base station; further, the base station can use the QPSK modulation method to allocate a separate transmission block for the control signaling, and then send the control signaling Previously, the transmit power of the UE was increased, so as to further improve the reliability of the UE sending control signaling to the base station, reduce the number of retransmissions, and reduce the transmission delay. the

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes. the

Embodiment four

FIG. 4 is a schematic structural diagram of a base station provided by Embodiment 4 of the present invention. As shown in FIG. 4 , the base station includes: a first acquiring module 31 , a second acquiring module 33 and a first sending module 35 . Wherein the first obtaining module 31 is used to obtain the control signaling to be sent by the network side, the control signaling includes radio resource control signaling and/or IP multimedia system signaling; the second obtaining module 33 is used to obtain the control signaling according to the control signal order to obtain the resource block corresponding to the control signaling; the first sending module 35 is configured to send the downlink control information of the control signaling through the physical downlink control channel, and send the resource block through the physical downlink shared channel. the

Specifically, in the LTE system, control signaling such as RRC signaling, IMS signaling, etc. needs to be transmitted between the base station and the user equipment. Control signaling or data is called uplink transmission. the

During downlink transmission, the first acquisition module can detect whether there is control signaling to be transmitted, and judge information such as the type of the existing control signaling and the data volume of the control signaling. For example: when there is data in the RLC cache of the SRB, the data in the RLC cache of the SRB can be obtained, and the data in the RLC cache of the SRB is RRC signaling; when there is data in the RLC cache of the DRB, according to the corresponding DRB The QCI of the data in the RLC cache determines whether the data in the RLC cache of the DRB is IMS signaling. When the data in the RLC cache of the DRB is IMS signaling, the data in the RLC cache of the DRB can be obtained. The first obtaining module 31 detects that there is control signaling on the network side, and after obtaining the data volume of the control signaling, the second obtaining module 33 determines the number of resource blocks used to transmit the control signaling according to the data volume of the control signaling. number and other information. Then the first sending module 35 sends the resource block carrying the control signaling to the UE. The first sending module 35 can send the resource block to the UE through a transmitter and an antenna. the

In this embodiment, the control signaling is transmitted separately from the service data. After the first acquiring module acquires the control signaling to be transmitted on the network side, the second acquiring module allocates a separate transmission block for the control signaling, and acquires the In the resource block, the first sending module can transmit control signaling and service data separately, which can reduce the order of coding and modulation, thereby improving the reliability and rate of control signaling transmission. the

Embodiment five

Fig. 5 is a schematic structural diagram of a base station provided in Embodiment 5 of the present invention. As shown in Fig. 5 , on the basis of Embodiment 4, the base station further includes a first power processing module 37, which is used to improve the emission of the first sending module. Power, sending the resource block from the physical downlink shared channel by the first sending module. The first acquiring module 31 includes: a radio resource control signaling submodule 311 and/or an IP multimedia system signaling submodule 313 . The radio resource control signaling submodule 311 is configured to obtain data in the RLC cache of the SRB through the first acquisition module if there is data in the radio link control RLC cache of the signaling radio bearer SRB, and the data in the RLC cache of the SRB The data is radio resource control signaling. The IP multimedia system signaling sub-module 313 is used to obtain data through the first acquisition module if there is data in the radio link control RLC cache of the data radio bearer DRB, and the quality of service level identifier is the level identifier corresponding to the IP multimedia system signaling The data in the RLC cache of the DRB, the data in the RLC cache of the DRB is IP multimedia system signaling. the

Further, the second acquisition module 33 includes: an allocation submodule 331 and a determination submodule 333 . The allocation sub-module 331 is configured to obtain a transmission block corresponding to the control signaling by means of quadrature phase shift keying (QPSK), where the size of the transmission block is the data volume of the control signaling. The determining sub-module 333 is configured to determine resource block information according to the size of the transport block. the

In one application scenario, when the base station transmits downlink, the module responsible for processing downlink scheduling in the base station can detect whether there is control signaling to be transmitted on the network side, the type of the control signaling, the data volume of the control signaling, and other information. If there is data in the radio link control RLC cache of the SRB, the radio resource control signaling submodule 311 acquires the data in the RLC cache of the SRB through the first acquisition module 31, and the data in the RLC cache of the SRB is wireless Resource control signaling. If there is data in the radio link control RLC cache of the DRB, and the quality of service level identifier is the level identifier corresponding to the IP multimedia system signaling, generally the QCI is "5", the IP multimedia system signaling submodule 313 passes the first The acquiring module 31 acquires data in the RLC cache of the DRB, where the data in the RLC cache of the DRB is IP multimedia system signaling. Then the allocation sub-module 331 adopts the quadrature phase shift keying QPSK mode to obtain the transmission block corresponding to the control signaling, the size of the transmission block is the data volume of the control signaling, and fills the data of the control signaling into For the transmission block, the determination submodule 333 determines resource block information according to the size of the transmission block, and after the first sending module 35 sends the downlink control information of the control signaling to the UE through the physical downlink control channel, the first power processing module 37 The transmit power of the first sending module 35 is increased, and the resource block carrying the control signaling is sent to the UE from the physical downlink shared channel through the first sending module 35 . the

Further, the base station may further include a first configuration module 38 and/or a second configuration module 39 . The first configuration module is configured to configure the SRB for RRC signaling in the first logical channel group, configure the DRB carrying the IMS in the second logical channel group, set the priority of the first logical channel group to the highest, and set the priority of the first logical channel group to the highest. The priority of the second logical channel group is set to be the second highest, and the cache status report includes the data volume in the first logical channel group and the data volume in the second logical channel group. The second configuration module 39 is configured to configure the SRB carrying RRC signaling and the DRB carrying IMS in the third logical channel group, and set the priority to the highest, and the cache status report includes the third logical channel group amount of data. the

Before uplink transmission, when the base station sends an RRC connection establishment message to the UE, the SBR carrying RRC signaling can be configured in the first logical channel group in advance through the first configuration module 38, and the DRB carrying IMS signaling can be configured in the second logical channel group. Logical channel group, for example: when the base station on the network side sends an RRC connection establishment message to the UE, all DCCHs corresponding to the SRB of RRC signaling are configured in the first logical channel group, and all DTCHs corresponding to the DRB of IMS signaling are configured in the first logical channel group Second logical channel group. And the first configuration module 38 can set the priority of the first logical channel group to be the highest, the priority of the second logical channel group to be the second highest, and the priority data volume of the first and second logical channel groups to be unlimited. The buffer status report of the UE received by the base station from the UE may include information such as the data volume of the control signaling to be transmitted in the first and second logical channel groups. The second configuration module 39 can pre-configure the SRB carrying RRC signaling and the DRB carrying IMS signaling in the third logical channel group, for example: when the base station on the network side sends an RRC connection establishment message to the UE, the RRC signaling All DCCHs corresponding to the SRBs and all DTCHs corresponding to the DRBs of the IMS signaling are configured in the third logical channel group. The second configuration module 39 may also set the priority of the third logical channel group to be the highest, and the priority data volume of the third logical channel group to be unlimited. The buffer state report of the UE received by the base station from the UE may include the amount of data in the third logical channel group. the

In this embodiment, the allocation sub-module uses QPSK to allocate transmission blocks for control signaling. After the determination sub-module determines the number of resource blocks according to the size of the transmission block, the first sending module can transmit the control signaling and service data separately. Signaling and business data are transmitted separately, and the amount of data in the transmission block is small, which reduces the number of resource blocks and the order of coding and modulation required for transmission of control signaling, thereby improving the rate and reliability of control signaling transmission; The transmission power of the base station is increased by the first power processing module before the signaling, which further improves the reliability of the base station to send the control signaling, reduces the number of retransmissions, and reduces the transmission delay. the

Embodiment six

FIG. 6 is a schematic structural diagram of a user equipment provided by Embodiment 6 of the present invention. As shown in FIG. 6 , the user equipment includes: a reporting module 51 , a second receiving module 53 and a second sending module 55 . Wherein the reporting module 51 is configured to report the cache status report of the user equipment, the cache status report includes the data amount of control signaling, and the control signaling includes radio resource control signaling and/or IP multimedia system signaling; The second receiving module 53 is configured to receive the downlink control information of the control signaling from the physical downlink control channel, and the downlink control information includes resource block information determined by the base station according to the data amount of the control signaling; the second sending module 55 is used for According to the resource block information, the resource block carrying the control signaling is sent from the physical uplink shared channel. the

Preferably, before the uplink transmission, the base station can pre-configure the logical channel group when sending the RRC connection establishment message to the UE. For example: pre-configure the SBR carrying RRC signaling in the first logical channel group, configure the DRB carrying IMS signaling in the second logical channel group, or pre-configure the SRB carrying RRC signaling and the DRB carrying IMS signaling Configured in the third logical channel group. The buffer status report (BSR) sent by the UE to the base station may include information such as the data volume of the control signaling in the first, second or third logical channel group. The base station can obtain information such as the control signaling to be transmitted, the type of the control signaling, and the data volume of the control signaling from the BSR. The base station allocates transport blocks for UEs using QPSK modulation according to the data volume of the control signaling, determines the number of resource blocks according to the size of the transport blocks, and then sends downlink control information DCI to the UE through the physical downlink control channel (PDCCH). The resource block information is notified to the UE. Further, the second receiving module 53 may receive the DCI of the control signaling sent by the base station through the PDCCH, the DCI of the control signaling includes the size of the transport block allocated by the base station for the control signaling, resource block information, and a modulation and coding scheme etc., wherein the size of the transport block is the data amount of the control signaling, and the resource block information can be determined according to the size of the transport block and the modulation and coding scheme. Further, the user equipment may also have a second power processing module, configured to increase the transmission power of the user equipment for sending the resource block, and send the resource block through the physical uplink shared channel, and the modulation mode of the resource block is quadrature phase Shift keying QPSK mode. the

Preferably, the base station adopts the QPSK modulation method to allocate the size of the transmission block for the UE, and determines the number of resource blocks according to the size of the transmission block, so after the second power processing module increases the transmit power of the UE's resource block for transmitting the control signaling, The required resource blocks for transmission can be sent to the base station through the PUSCH. If there is service data to be transmitted in the UE, after the UE has sent the resource blocks, the transmit power of the UE may be reduced to normal power before sending the service data to be transmitted. the

After the reporting module of this embodiment reports the BSR to the base station, it allocates a separate transmission block for the control signaling, and determines the resource block information used for the separate transmission of the signaling, so that the control signaling and the service data can be transmitted separately, and the transmission of control signaling can be reduced. The number of required resource blocks and the order of coding and modulation are used to improve the reliability and rate of sending control signaling from the UE to the base station. Furthermore, the base station may use QPSK modulation for modulation, and before sending the control signaling, the second power processing module may increase the transmission power of the UE sending the resource block carrying the control signaling, thereby further improving the efficiency of the UE sending the control signaling to the base station. Reliability, reducing the number of retransmissions and sending delays. the

Embodiment seven

FIG. 7 is a schematic structural diagram of a control signaling transmission system provided by Embodiment 7 of the present invention. As shown in FIG. 7 , the control signaling transmission system includes: a base station 61 and a user equipment 63 . Wherein the base station 61 is used to obtain the control signaling to be sent by the network side, the control signaling includes radio resource control signaling and/or IP multimedia system signaling, and obtains resources corresponding to the control signaling according to the control signaling block, sending the downlink control information of the control signaling to the user equipment 63 through the physical downlink control channel, and sending the resource block to the user equipment 63 through the physical downlink shared channel; the user equipment 63 is used to report the cache of the user equipment to the base station 61 A status report, the buffer status report includes the data amount of control signaling, the control signaling includes radio resource control signaling and/or IP multimedia system signaling, and the control signal sent by the base station 61 is received from the physical downlink control channel Signaling downlink control information, the downlink control information includes resource block information determined by the base station 61 according to the data amount of the control signaling, and according to the resource block information, a physical uplink shared channel is sent to the base station 61 to carry the control signaling resource block. the

In an application scenario, in an LTE system, control signaling such as RRC signaling, IMS signaling, and the like needs to be transmitted between the base station 61 and the user equipment 63 . When the base station 61 transmits the downlink transmission of control signaling to the user equipment 63, the module in the base station 61 responsible for processing the scheduling in the downlink direction can detect whether there is control signaling to be transmitted in the base station 61, the type of the control signaling, the control signal Specifically, when there is data in the RLC cache of the SRB, the data in the RLC cache of the SRB acquired by the base station 61 is RRC signaling; when there is data in the RLC cache of the DRB, the base station 61 according to the The QCI of the data in the RLC cache of the DRB is used to judge whether the data in the RLC cache of the DRB is IMS signaling, and when the data in the RLC cache of the DRB is IMS signaling, the data in the RLC cache of the DRB can be obtained. Then the base station 61 uses the QPSK modulation method to allocate a transmission block for the control signaling according to the data amount of the obtained control signaling, and determines the number of resource blocks used to transmit the control signaling according to the data amount of the control signaling, and then sends The user equipment 63 sends the resource block. the

When the user equipment 63 transmits the uplink transmission of the signaling to the base station 61, the user equipment 63 reports a buffer status report (BSR) to the base station. The base station 61 can obtain the data volume of the control signaling from the BSR reported by the UE, use QPSK modulation to allocate transport blocks for the control signaling in the UE, and determine the number of resource blocks according to the size of the transport blocks. The user equipment 63 receives the downlink control information DCI sent by the base station 61 through the PDCCH, wherein the DCI includes the size of the transport block allocated by the base station 61 for the control signaling to be transmitted in the user equipment 63, the number of resource blocks, and the modulation and coding scheme. Then the user equipment 63 maps the control signaling included in the transport block into resource blocks according to the DCI, and then sends the resource blocks carrying the control signaling to the base station 61 through PUDSH. The base station and user equipment in this embodiment may be the base station or user equipment in any of the foregoing embodiments of the present invention. the

In this embodiment, the base station allocates a separate transmission block for the control signaling, obtains the resource block used for the separate transmission of the signaling, and can transmit the control signaling and the service data during uplink or downlink transmission separately, which can reduce the transmission of control signaling The number of required resource blocks and the order of modulation and coding, so as to improve the reliability and rate of control signaling transmission and reduce the delay of signaling transmission. the

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. the

Claims (13)

1. a control signal transmission method is characterized in that, comprising:

Obtain network side control signaling to be sent, described control signaling comprises radio resource control signaling and/or IP multimedia system signaling, the described network side control signaling to be sent of obtaining specifically comprises: if having data in the Radio Link of the Signaling Radio Bearer SRB control RLC buffer memory, obtain the data in the RLC buffer memory of described SRB, the data in the RLC buffer memory of described SRB are radio resource control signaling; Perhaps if having data in the Radio Link of the Data Radio Bearer DRB control RLC buffer memory, and the service quality rating identifier is the class letter symbol of IP multimedia system signaling correspondence, obtain the data in the RLC buffer memory of described DRB, the data in the RLC buffer memory of described DRB are IP multimedia system signaling;

Obtain the Resource Block of the described control signaling of carrying according to described control signaling;

Send the Downlink Control Information of described control signaling by Physical Downlink Control Channel, send described Resource Block by Physical Downlink Shared Channel.

2. control signal transmission method according to claim 1 is characterized in that, describedly sends described Resource Block by Physical Downlink Shared Channel and comprises:

Improve the transmitting power that network side sends described Resource Block, send described Resource Block by Physical Downlink Shared Channel.

3. control signal transmission method according to claim 1 and 2 is characterized in that, described according to described control signaling obtain the carrying described control signaling Resource Block comprise:

Adopt Quadrature Phase Shift Keying QPSK modulation system to obtain the transmission block of corresponding described control signaling;

Obtain the Resource Block of the described transmission block of carrying according to described transmission block.

4. a control signal transmission method is characterized in that, comprising:

The buffer status report of report of user equipment comprises the data volume of controlling signaling in the described buffer status report, described control signaling comprises radio resource control signaling and/or IP multimedia system signaling;

Receive the Downlink Control Information of described control signaling from Physical Downlink Control Channel, described Downlink Control Information comprises the Resource Block information that the base station is determined according to the data volume of control signaling;

According to described Resource Block information, send the Resource Block of the described control signaling of carrying from Physical Uplink Shared Channel.

5. control signal transmission method according to claim 4 is characterized in that, described Resource Block from the described control signaling of Physical Uplink Shared Channel transmission carrying comprises:

Improve the transmitting power that subscriber equipment sends described Resource Block, send the Resource Block of the described control signaling of carrying from Physical Uplink Shared Channel.

6. control signal transmission method according to claim 4 is characterized in that, comprises before the buffer status report of described report of user equipment:

The Signaling Radio Bearer SRB that radio resource control signaling will be carried in the base station is configured in the first logic channel group, the Data Radio Bearer DRB of carrying IP multimedia system signaling is configured in the second logic channel group, it is time high that the priority that the priority of the described first logic channel group is set to the highest, the described second logic channel group is set to, and described buffer status report comprises data volume in the described first logic channel group and the data volume in the described second logic channel group; Perhaps

The SRB of radio resource control signaling and the DRB of carrying IP multimedia system signaling will be carried in the base station, be configured in the 3rd logic channel group, and priority is set to the highest, and described buffer status report comprises the data volume in described the 3rd logic channel group.

7. according to any described control signal transmission method of claim 4-6, it is characterized in that, after the buffer status report of described report of user equipment, receive described Downlink Control Information and comprise before:

The base station adopts Quadrature Phase Shift Keying QPSK mode to obtain the size of the transmission block of corresponding described control signaling, and the size of described transmission block is the data volume of described control signaling, determines described Resource Block information according to the size of described transmission block.

8. a base station is characterized in that, comprising:

First acquisition module is used to obtain network side control signaling to be sent, and described control signaling comprises radio resource control signaling and/or IP multimedia system signaling;

Second acquisition module is used for obtaining the Resource Block that carries described control signaling according to described control signaling;

First sending module is used for sending by Physical Downlink Control Channel the Downlink Control Information of described control signaling, sends described Resource Block by Physical Downlink Shared Channel;

Wherein, described first acquisition module comprises:

The radio resource control signaling submodule, be used for if there are data in the Radio Link of Signaling Radio Bearer SRB control RLC buffer memory, obtain the data in the RLC buffer memory of described SRB by first acquisition module, the data in the RLC buffer memory of described SRB are radio resource control signaling; And/or

IP multimedia system signaling submodule, be used for if there are data in the Radio Link of Data Radio Bearer DRB control RLC buffer memory, and the service quality rating identifier is the class letter symbol of IP multimedia system signaling correspondence, obtain the data in the RLC buffer memory of described DRB by first acquisition module, the data in the RLC buffer memory of described DRB are IP multimedia system signaling.

9. base station according to claim 8 is characterized in that, also comprises:

The first Power Processing module is used to improve the transmitting power of described first sending module, sends described Resource Block by described first sending module from Physical Downlink Shared Channel.

10. base station according to claim 8 is characterized in that, also comprises:

First configuration module, be used for before the user equipment to report buffer status report, the SRB of carrying radio resource control signaling is configured in the first logic channel group, the DRB of carrying IP multimedia system signaling is configured in the second logic channel group, it is time high that the priority that the priority of the described first logic channel group is set to the highest, the described second logic channel group is set to, and described buffer status report comprises data volume in the described first logic channel group and the data volume in the described second logic channel group; And/or

Second configuration module, be used for before the user equipment to report buffer status report, with the SRB of carrying radio resource control signaling and the DRB of carrying IP multimedia system signaling, be configured in the 3rd logic channel group, priority is set to the highest, and described buffer status report comprises the data volume in described the 3rd logic channel group.

11. a subscriber equipment is characterized in that, comprising:

Reporting module is used to report the buffer status report of described subscriber equipment, comprises the data volume of controlling signaling in the described buffer status report, and described control signaling comprises radio resource control signaling and/or IP multimedia system signaling;

Second receiver module is used for receiving from Physical Downlink Control Channel the Downlink Control Information of described control signaling, and described Downlink Control Information comprises the Resource Block information that the base station is determined according to the data volume of control signaling;

Second sending module is used for according to described Resource Block information, sends the Resource Block of the described control signaling of carrying from Physical Uplink Shared Channel.

12. subscriber equipment according to claim 11 is characterized in that, also comprises:

The second Power Processing module is used to improve the transmitting power that subscriber equipment sends described Resource Block, sends described Resource Block by Physical Uplink Shared Channel, and the modulation system of described Resource Block is a Quadrature Phase Shift Keying QPSK mode.

13. a control signaling transmission system is characterized in that, comprising: the arbitrary described base station of claim 8-10;

Subscriber equipment, be used for buffer status report to described base station report of user equipment, comprise the data volume of controlling signaling in the described buffer status report, described control signaling comprises radio resource control signaling and/or IP multimedia system signaling, receive the Downlink Control Information of described control signaling from Physical Downlink Control Channel, described Downlink Control Information comprises the Resource Block information that described base station is determined according to the data volume of control signaling, according to described Resource Block information, send the Resource Block of the described control signaling of carrying to described base station from Physical Uplink Shared Channel.

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