WO2010094194A1 - Method and apparatus for transmitting unicast service control information - Google Patents

Abstract

A method and apparatus for transmitting the unicast service control information are provided in the present invention, the method comprises: transmitting the unicast service control information in the frequency subarea where the frequency reuse factor is 1, wherein the unicast service control information includes the non-user-specific control information and/or user-specific control information. With the present invention, performing the unicast service control information is defined base on the frequency subarea with the requirement of FFR, especially for the frequency subarea where the non-user-specific control information is transmitted, and the problem that the related technique can not perform the unicast service control information transmission with the requirement of the interference suppression technique(FFR) is solved, so that the transmission of the unicast service control information would be realized on the basis that the system utilizes frequency reuse and the requirement of FFR is satisfied, and the resource of the system would be utilized sufficiently, the data transmission delay would be reduced, and then the performance of the system is improved effectively.

Description

 Method and device for transmitting unicast service control information

 The present invention relates to the field of communications, and in particular, to a method and apparatus for transmitting unicast service control information. Background technique

 In current wireless communication systems, a base station is a device that provides services to a terminal. Generally, the base station can communicate with the terminal through the uplink and the downlink, where the downlink refers to the direction of the base station to the terminal, and the uplink refers to the direction of the terminal to the base station. Moreover, a plurality of terminals can simultaneously transmit data to the base station through the uplink, or can simultaneously receive data from the base station through the downlink.

 In an Orthogonal Frequency Division Multiple Access (OFDMA)-based communication system, a terminal can implement multiple access by occupying different subcarriers. The base station can generally perform scheduling and allocation of radio resources, and send control information such as system configuration information and resource allocation information of the downlink and uplink transmissions through the control channel. After receiving and decoding the control message on the determined control channel, the terminal can The decoded information is transmitted with the base station.

 In general, the downlink control channel of an IEEE 802.16m system based on OFDMA technology includes a synchronization channel, a broadcast control channel, a unicast traffic control channel, and a multicast control channel. The message of the unicast service control channel includes two parts, one part is Non-User-Specific Control Information (NUSCI), and the other part is User-Specific Control Information (USCI).

Specifically, the non-specific user control information is not exclusive to one or a group of specific end users, and this part of the information is mainly used to indicate decoding information of specific user control information. The specific user control information is control information specific to one or a group of specific terminal users, and may specifically include Source allocation information, feedback information of Hybrid Automatic Repeat reQuest (HARQ), power control information, and the like. The terminal can decode the specific user control information only after correctly decoding the non-specific user control information in the unicast service control channel, and obtain the relevant indication for decoding the specific user control information, and further, according to the resource allocation indication in the specific user control information. The information is transmitted with the base station.

 In addition, with the application of the Fractional Frequency Reuse (FFR) of the interference suppression technology, in order to achieve the balance of interference suppression and resource efficiency, the design of the unicast service control channel is also required, especially for non-specific user control information. Designed to meet the requirements of FFR technology. However, the design (sending scheme) for non-specific user control information cannot meet the FFR technical requirements, and no effective solution has yet been proposed. Summary of the invention

 The present invention has been made in view of the problem that the design of non-specific user control information in the related art cannot meet the requirements of the FFR technology. To this end, the main object of the present invention is to provide a method and apparatus for transmitting unicast service control information.

 According to still another aspect of the present invention, a method of transmitting unicast service control information is provided. The method for transmitting unicast service control information according to the present invention includes: transmitting unicast service control information in a frequency partition having a frequency reuse factor of 1 and/or a frequency partition having a frequency reuse factor of ,, wherein unicast service control The information includes non-specific user control information and/or specific user control information, which is a positive number not equal to one.

 Wherein, in one aspect, the method according to the present invention may further comprise:

Presetting at least one of the following information through a field in the system broadcast message: Whether to transmit unicast service control information in a frequency partition having a frequency reuse factor of 1, and whether to transmit a unicast service in a frequency partition having a frequency reuse factor of Ν The control information, the frequency multiplex factor of the unicast service control information, the frequency zoning factor of the unicast service control information, and the frequency multiplex factor of the unicast service control information are Ν. On the other hand, when transmitting unicast service control information in one or more frequency partitions of a frequency partition having a frequency reuse factor of 1 and a frequency partition having a frequency reuse factor of N, a part of one or more frequency partitions or All frequency partitions are pre-specified frequency partitions. And, the non-specific user control information in the unicast service control information transmitted in the pre-specified frequency partition includes a field for indicating another frequency partition for transmitting the unicast service control information.

 Before transmitting, the method may further comprise: performing QPSK modulation of a predetermined coding rate on the non-specific user control information that needs to be transmitted.

 Further, the non-specific user control information transmitted in the frequency partition having the frequency reuse factor of 1 and/or the frequency reuse factor being N includes at least one non-specific user control information unit, and the non-specific user control information unit includes Decoding information describing specific user control information transmitted in a frequency partition.

 The non-specific user control information unit includes a resource information field, where the resource information field is used to indicate a resource size and/or a resource location for transmitting the unicast service control information.

 And, the non-specific user control information element includes a field for indicating a transmission format used to transmit the corresponding specific user control information, the field including a modulation mode and/or a coding rate.

 Further, the non-specific user control information unit includes at least one indication bit for indicating whether the corresponding specific user control information includes one or more of a hybrid automatic repeat request, power control information, and resource allocation mode information.

 Preferably, in a case where at least one of the hybrid automatic repeat request, the power control information, and the resource allocation manner information is included in the specific user control information corresponding to the non-specific user control information unit, the non-specific user control information unit is included for description. A field corresponding to the number and/or size of information contained in the specific user control information.

According to another aspect of the present invention, a method of transmitting unicast service control information is provided. The method for transmitting unicast service control information according to the present invention includes: transmitting unicast service control information in a frequency partition having a frequency reuse factor of 1, wherein the unicast service control information includes non-specific User control information and/or specific user control information.

 The non-specific user control information sent in the frequency partition with the frequency reuse factor of 1 includes: a field for indicating whether to send unicast service control information in a frequency partition with a frequency reuse factor of N, and/or for A field indicating a frequency partition with a frequency reuse factor of N for transmitting unicast service control information, where N is a positive number not equal to one.

 Furthermore, in the method, after the control information is transmitted, the method may further include: performing QPSK modulation of a predetermined coding rate on the non-specific user control information that needs to be transmitted.

 Further, the non-specific user control information transmitted in the frequency partition having the frequency reuse factor of 1 includes at least one non-specific user control information unit, and the non-specific user control information unit includes specific user control information for describing transmission in one frequency partition. Decoding information.

 The non-specific user control information unit includes a resource information field, where the resource information field is used to indicate a resource size and/or a resource location for transmitting the unicast service control information.

 And, the non-specific user control information unit includes a field for indicating a transmission format used to transmit the corresponding specific user control information, wherein the transmission format field includes a modulation mode and/or a coding rate.

 Further, the non-specific user control information unit includes at least one indication bit for indicating whether the corresponding specific user control information includes one or more of a hybrid automatic repeat request, power control information, and resource allocation mode information. Preferably, in a case where at least one of the hybrid automatic repeat request, the power control information, and the resource allocation manner information is included in the specific user control information corresponding to the non-specific user control information unit, the non-specific user control information unit is included for description. A field corresponding to the number and/or size of information contained in the specific user control information.

According to still another aspect of the present invention, a transmitting apparatus for unicast service control information is provided. The apparatus for transmitting unicast service control information according to the present invention includes: a configuration module, configured to configure unicast service control information to a frequency partition with a frequency reuse factor of 1 and/or a frequency partition with a frequency reuse factor of N, where , the unicast service control information includes non-specific user control information and/or Specific user control information, N is a positive number that is not equal to 1; a sending module is configured to send the configured unicast service control information according to the configuration result of the configuration module.

 According to still another aspect of the present invention, a transmitting apparatus for unicast service control information is provided. The device for transmitting unicast service control information according to the present invention includes: a configuration module, configured to configure unicast service control information to a frequency partition with a frequency reuse factor of 1, wherein the unicast service control information includes non-specific user control information And/or specific user control information; a sending module, configured to send the configured unicast service control information according to the configuration result of the configuration module.

 With the above technical solution of the present invention, the unicast service control information, especially the frequency partitioning of non-specific user control information transmission, is defined on the basis of frequency partitioning for the requirement of FFR, and the related art cannot solve the interference suppression technology. The problem of transmitting the unicast service control information is required, so that the unicast service control information can be transmitted on the basis of the frequency reuse and the FFR requirement, and the system resources can be fully utilized to reduce the data transmission. Delay, and thus effectively improve system performance. DRAWINGS

 1 is a schematic diagram of a frame structure adopted by an IEEE 802.16m system in the related art; FIG. 2 is a schematic diagram of obtaining a frequency partition and a transmission power of each partition by using an interference suppression technique;

 3 is a flow chart of a method for transmitting unicast service control information according to Embodiment 1 of the method of the present invention;

 4 is a schematic structural diagram of a unicast service control channel according to an embodiment of the present invention; FIG. 5 is a flowchart of transceiving processing of unicast service control information according to an embodiment of the present invention; FIG. 6 is a single embodiment of a method according to the present invention; Schematic diagram of the unicast service control channel in the processing example 1 of the method for transmitting the broadcast service control information;

7 is a flowchart of a method for transmitting unicast service control information according to Embodiment 2 of the method of the present invention; 8 is a schematic diagram of a unicast service control channel in a processing example 2 of a method for transmitting unicast service control information according to Embodiment 2 of the method of the present invention;

 9 is a block diagram of an apparatus for transmitting unicast service control information according to an embodiment of the apparatus of the present invention. DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

 For the problem that the unicast service control information cannot be transmitted for the requirement of the interference suppression technology in the related art, the present invention defines the unicast on the basis of the frequency partition (also referred to as frequency segmentation) for the FFR requirement. The control information of the service, especially the frequency partition of the non-specific user control information transmission, realizes the transmission of the unicast service control information on the basis of satisfying the requirement of the FFR.

 The application of the interference suppression technique FFR in the related art will first be described below.

 Figure 1 shows the frame structure employed in the IEEE 802.16m system. As shown in FIG. 1, the radio resources are divided into consecutive superframes in time (superframe 1, superframe 2, superframe 3, and superframe 4 as shown in FIG. 1), and the duration of each superframe ( The frame length is 20 milliseconds. There are four 5 millisecond frames in each superframe (such as frame 1, frame 2, frame 3, and frame 4 in superframe 2), and each frame (for example, frame 2) consists of 8 subframes (as shown in the figure). The sub-frames 1-8) are composed, and each sub-frame contains 6 OFDM symbols (symbols 1-6 in the figure).

By using the interference suppression technique FFR, the bandwidth of the subframe in FIG. 1 can be divided into multiple frequency partitions. 2 is a schematic diagram of an example of a specific frequency segmentation after frequency partitioning using FFR technology. As shown in FIG. 2, after frequency partitioning is performed on three adjacent sectors (or cells), the resources of the downlink subframe are divided into four segments in frequency, corresponding to four frequency partitions, respectively. There are several resource blocks in the frequency partition. The frequency reuse factor of frequency partition 2 (corresponding to frequency segment B), 3 (corresponding to frequency segment C), and 4 (corresponding to frequency segment D) is 3 (indicating that there are 3 sectors that cannot be used simultaneously or The three frequency segments cannot be used without power limitation at the same time, that is, sector 1 is transmitting at a high power using the resources of frequency segment B, without using segment C. And the resources of D, or the transmit power on segments C and D are limited to a certain range; similarly, it can be seen that sector 2 uses the resources of frequency segment C for high power transmission, without segment B and The resources of D, or the transmit power on segments B and D are limited to a certain range; sector 3 uses the resources of frequency segment D for high power transmission, does not use the resources of segments B and C, or will be segmented The transmit power on B and C is limited to a certain range; in addition, for the frequency segment A with the smallest interference level, all three sectors use this frequency segment for high-power transmission (the frequency reuse factor of the segment can be used) Expressed as 1), that is, the three frequency sectors can use the segment frequency resource, and the transmission power is not limited.

 Through this frequency partitioning, it is possible to avoid three sectors simultaneously performing high-power transmission in the same frequency partition, thereby effectively avoiding interference between sectors.

 On the basis of a frequency partition such as that shown in FIG. 2, the present invention proposes a scheme for transmitting unicast service control information, enabling the transmission of unicast service control information to use the FFR requirement, and, hereinafter, in the frequency partition. The transmission of information refers to the transmission of information in the bandwidth occupied by the frequency partition.

 The technical solution of the present invention will be described in detail below.

 Method embodiment 1

 In this embodiment, a method for transmitting unicast service control information is provided.

 As shown in FIG. 3, the transmission of the unicast service control information according to the present embodiment includes step S302 and step S304.

 The specific processing shown in Figure 3 is as follows:

 Step S302: Perform a four-phase shift keying (QPSK, Quaternary Phase Shift Keying) modulation on the non-specific user control information that needs to be sent;

Step S304, transmitting unicast service control information in a frequency partition with a frequency reuse factor of 1 (frequency partition of reuse=1) and/or a frequency partition with a frequency reuse factor of N (reuse=N frequency partition) (through The unicast service channel is sent, where the unicast service control information includes non-specific User control information and/or specific user control information, N being a positive number not equal to one. That is to say, non-specific user control information can be transmitted in the frequency partition with the frequency reuse factor of 1 and the frequency reuse factor of N. In the present invention, the frequency reuse factor N has a value of 3 or 1, 1/3.

 On the one hand, in the case of transmitting unicast service control information using a frequency partition with a frequency reuse factor of 1 and/or a frequency partition with a frequency reuse factor of N, the frequency reuse factor may be indicated by a field in the system broadcast message. Frequency partitioning of frequency division and frequency division with frequency multiplexing factor N includes frequency partitioning of unicast service control information, that is, the frequency division of transmitting unicast service control information is notified to the receiver by the system broadcast message (for example, it may be terminal).

 The field in the system broadcast message may be used to indicate whether to send unicast service control information in a frequency partition with a frequency reuse factor of 1, whether to send unicast service control information in a frequency partition with a frequency reuse factor of N, and a sending list. A frequency partition with a frequency reuse factor of 1 for broadcasting service control information, and/or a frequency partition with a frequency reuse factor of N for transmitting unicast service control information.

 On the other hand, when transmitting unicast service control information in one or more frequency partitions of a frequency partition having a frequency reuse factor of 1 and a frequency partition having a frequency reuse factor of N, a part of one or more frequency partitions or All frequency partitions are pre-specified frequency partitions. Preferably, the non-specific user control information in the unicast service control information transmitted in the pre-specified frequency partition includes a field for indicating other frequency partitions for transmitting the unicast service control information.

 That is, one or several frequency partitions may be specified in multiple frequency partitions for unicast service control information transmission, and the non-specific user control information sent in the specified frequency partition may be used to indicate other unicast services. Control the frequency partitioning of information.

 Further, the non-specific user control information transmitted in the frequency partition with a frequency reuse factor of 1 and/or the frequency partition with a frequency reuse factor of N includes at least one non-specific user control information unit, and the non-specific user control information unit is included for Decoding information describing specific user control information transmitted in a frequency partition.

The non-specific user control information unit includes a resource information field, where the resource information The field is used to indicate the resource size (ie, can be used to indicate the size of the unicast service control information) and/or the resource location for transmitting the unicast service control information.

 And, the non-specific user control information unit includes a field for indicating a transmission format used to transmit the corresponding specific user control information, wherein the field for indicating the transmission format includes a modulation mode and/or a coding rate.

 Preferably, the non-specific user control information unit includes at least one indication bit for indicating whether the corresponding specific user control information includes one or more of a hybrid automatic repeat request, power control information, and resource allocation mode information. In a case where at least one of the hybrid automatic repeat request, the power control information, and the resource allocation manner information is included in the specific user control information corresponding to the non-specific user control information unit, the non-specific user control information unit is further used to describe the corresponding specific The number and/or size of information contained in the user control information. The content contained in the non-specific user control information can be referred to Table 1. Field Name Field Size Field Description

 The size of the unicast control information 5 bits indicates the size of the resource occupied by the specific user control information, to 1

 Resource blocks for indication granularity

 USCI type indication 3 bits Indicates the type of specific user control information. Each bit description contains HARQ feedback control information, power control information, and resource allocation control information.

If you include HARQ feedback

 Control information

 {HA Q feedback control information 4 bits Indicates the resource size or size occupied by the HARQ feedback control information } Number of HARQ feedback control information elements If power control information is included

 {Power control information size} 4 bits Indicates the resource size or power control information occupied by the power control.

If including resource allocation control

information {Resource allocation control information sheet 4 bits indicates the number of digits of the resource allocation control information unit}

 Table 1

 4 is a schematic structural diagram of a unicast traffic channel. As shown in FIG. 4, the unicast service control information includes non-specific user control information and/or specific user control information. The specific user control information indicates control information related to a user or a group of users, including HARQ feedback control information, power control information, and resource allocation control information. The non-specific user control information indicates information such as the size of the resource occupied by the specific user control information, the type of the specific user control information, and the like.

 In addition, when performing unicast service control information transmission, specific user control information may exist in a partial frequency partition, or may exist in all frequency partitions, and in a frequency partition that needs to transmit specific user control information, each frequency partition is sent. a specific user control information; non-specific user control information may exist in all or part of the frequency partition, and a plurality of non-specific user control information units may be transmitted in one frequency partition, in order to ensure that the receiver can receive the specific user control information, The non-specific user control information element in the non-specific user control information corresponds to the specific user control information transmitted in one frequency partition.

 FIG. 5 shows a flow in which a base station transmits a broadcast message and a unicast service control message to a terminal, and the terminal receives and decodes the control information.

 As shown in FIG. 5, the following steps are specifically included:

Step 501: The base station sends a system broadcast message to the terminal. System configuration information or the like (for example, basic configuration information of the system) is described (indicated) in a system broadcast message (this message may also be referred to as a system broadcast control message); and, the base station transmits a unicast service to the terminal at a specified resource location. Control message, when the system has only one frequency partition, the unicast service control message includes non-specific user control information and specific user control information; and when the system has multiple frequency partitions, the unicast service control message of the partial frequency partition may include non- Specific user control information and specific user control information, and partial frequency partitioned unicast service control messages may also include only specific user control messages Interest.

 Step 502: The terminal receives and decodes a system broadcast control message, and acquires basic configuration information of the system.

 Step 503: The terminal receives and decodes non-specific user control information for the resource location in a frequency partition with a frequency reuse factor of 1 and/or a frequency reuse factor of N (N is not equal to 1), the non-specific user control information. The decoding information for the specific user control information is indicated (described).

 Step 504: The terminal receives and decodes the specific user control information at the specified location according to the description of the decoding information of the specific user control information in the non-specific user control information.

 The method according to the present embodiment will be described below with reference to specific examples.

 Example 1

 In this example, as shown in Figure 6, it is assumed that there are four frequency partitions in the system, the frequency reuse factor of frequency partition 1 is 1, and the frequency reuse factor of frequency partition 2, frequency partition 3 and frequency partition 4 is 3. Among them, the load of sector 1 is heavy, and resources of all frequency partitions are used. And, the non-specific user control information units in the frequency partitions 1, 2, 3, and 4 respectively contain decoding information of specific user control information of the frequency partition.

 In conjunction with the processing shown in Figure 5, in this example, the process of transmitting and receiving unicast service control information is as follows:

 Step 501: The base station sends a system broadcast message to the terminal, and the base station sends a system broadcast message to the terminal, and describes the number of frequency partitions and the number of resource blocks of each frequency partition. The broadcast message indicates that the frequency reuse factor is 1 and all frequency reuse zones with a frequency reuse factor of 3 transmit non-specific user control information and specific user control information.

 The base station transmits unicast service control information at a position starting from the first logical resource block of each frequency partition. Among them, the frequency partitions 1, 2, 3, and 4 all include non-specific user control information and specific user control information.

Step 502: The terminal receives and decodes a system broadcast control message, and acquires a basic configuration letter of the system. Interest.

 Step 503: The terminal parses the system broadcast message, and learns that the frequency partitions 1, 2, 3, and 4 all include non-specific user control information and specific user control information. The terminal, in turn, at a location beginning with the first logical resource block of each frequency partition, resolves the non-specific user control information element using a specified modulation and coding scheme.

 Step 504: The terminal learns, according to the content of the non-specific user control information unit in the frequency partitions 1, 2, 3, and 4, the size of the specific user control information corresponding to the frequency partition, the type of the specific user control information, and the size of the corresponding type of control information. Or control the number of information units. The terminal further analyzes the specific user control information of the frequency partitions 1, 2, 3, and 4, respectively.

 Through the above processing, when the system adopts the frequency reuse technology, the non-specific user control information can be selected to be transmitted in different frequency partitions (the unicast service control channels of these partitions) according to the networking requirements, and the system resources can be fully utilized. In the non-user control information, indicating the type, number of specific user control information, or the size of a specific user control channel, helps the terminal to quickly decode the control information related to itself, thereby reducing the data transmission delay, thereby effectively improving the system. performance.

 Method embodiment two

 In this embodiment, a method for transmitting unicast service control information is provided.

 As shown in FIG. 7, the method for transmitting unicast service control information according to this embodiment includes: step S702 and step S704.

 Step S702: Perform a predetermined coding rate on the non-specific user control information that needs to be sent.

QPSK modulation;

Step S704, transmitting unicast service control information in a frequency partition with a frequency reuse factor of 1, wherein the unicast service control information includes non-specific user control information and/or specific user control information. That is to say, non-specific user control information can be transmitted in the frequency partition with the frequency reuse factor of 1 and the frequency reuse factor of N. And, the non-specific user control information sent in the frequency partition with the frequency reuse factor of 1 includes a field for indicating a frequency partition with a frequency reuse factor of N for performing unicast service control information transmission, where N is not equal to A positive number of 1. Specifically, the non-specific user control information sent in the frequency partition with the frequency reuse factor of 1 includes: a field for indicating whether to send unicast service control information in a frequency partition with a frequency reuse factor of N, and/or And a field indicating a frequency partition with a frequency reuse factor of N for transmitting unicast service control information, where N is a positive number not equal to 1.

 Furthermore, the non-specific user control information transmitted in the frequency partition having a frequency reuse factor of 1 includes at least one non-specific user control information unit, and the non-specific user control information unit includes specific user control information for describing transmission in a frequency partition. Decoding information.

 The non-specific user control information unit includes a resource information field, where the resource information field is used to indicate a resource size (ie, a size indicating unicast service control information) and/or a resource location for transmitting the unicast service control information.

 And, the non-specific user control information unit may further include a field for indicating a transmission format used for transmitting the corresponding specific user control information, wherein the transmission format field includes a modulation mode and/or a coding rate.

 Preferably, the non-specific user control information unit includes at least one indication bit for indicating whether the corresponding specific user control information includes one or more of a hybrid automatic repeat request, power control information, and resource allocation mode information. In a case where at least one of the hybrid automatic repeat request, the power control information, and the resource allocation manner information is included in the specific user control information corresponding to the non-specific user control information unit, the non-specific user control information unit is further used to describe the corresponding specific The number and/or size of information contained in the user control information. The content included in the non-specific user control information can be referred to Table 1, and the structure of the unicast service control channel can be referred to FIG.

 The method according to the present embodiment will be described below with reference to examples.

Example 2 In this example, as shown in FIG. 8, there are four frequency partitions in the support system, the frequency reuse factor of frequency partition 1 is 1, and the frequency reuse factor of frequency partition 2, frequency partition 3, and frequency partition 4 is 3. . The load of sector 1 is light, and the resources of frequency partition 1 and frequency partition 2 are used to transmit unicast service control information. The unicast service control information of the frequency partition 1 includes non-specific user control information and specific user control information; and the unicast service control information of the frequency partition 2 includes specific user control information. Frequency partition 3 and frequency partition 4 do not contain specific user control information.

 Combined with the processing shown in Figure 5, the unicast service control information is sent and received in this example as follows:

 Step 501: The base station sends a system broadcast message to the terminal, and describes the number of frequency partitions and the number of resource blocks of each frequency partition. The non-specific user control information of frequency partition 1 describes that other frequency partitions do not contain non-specific user control information, that is, description frequency partitions 1 and 2 contain specific user control information, and description frequency partitions 3 and 4 do not contain specific user control information. Frequency partition 1 includes non-specific user control information elements for two frequency partitions. The non-specific user control information units 1, 2 respectively contain decoding information of specific user control information of the frequency partitions 1, 2. And, in this step, the base station of the sector 1 transmits the unicast service control information at a position starting from the first logical resource block having the frequency reuse factor of 1 frequency partition.

 Step 502: The terminal receives and decodes a system broadcast control message, and acquires basic configuration information of the system.

 Step 503: The terminal receives and parses the non-specific user control information. The terminal learns that the unicast control information is not sent on other frequency partitions according to the description in the non-specific user control information; it is known that the frequency partition 1 and the frequency partition 2 contain specific user control information.

Step 504: The terminal parses two non-specific user control information units in the non-specific user control information of the frequency partition 1, and obtains the size of the specific user control information of the frequency partitions 1, 2, and the type of the specific user control information in the corresponding frequency partition. And the corresponding type of control information size or the number of control information units, and the terminal further analyzes the specific user control information of the frequency partitions 1, 2 respectively. Through the above processing, when the system adopts the frequency reuse technology, the non-specific user control information can be selected to be transmitted in different frequency partitions according to the networking requirement, and the resources of the system can be fully utilized; the specific information is indicated in the non-user control information. The type, number of users, or the size of a specific user control channel helps the terminal to quickly decode control information related to itself, thereby reducing data transmission delay and effectively improving system performance.

 Device embodiment 1

 In this embodiment, a device for transmitting unicast service control information is provided.

 As shown in FIG. 9, the apparatus for transmitting unicast service control information according to this embodiment includes: a configuration module 1 and a transmission module 3.

 The functions of the modules shown in Figure 9 are as follows:

 The configuration module 1 is configured to configure the unicast service control information to a frequency partition with a frequency reuse factor of 1 and/or a frequency partition with a frequency reuse factor of N, where the unicast service control information includes non-specific user control information and / or specific user control information, N is a positive number not equal to 1;

 The sending module 3 is connected to the configuration module 1 and configured to send the configured unicast service control information according to the configuration result of the configuration module 1. Moreover, non-specific user control information can be transmitted in a frequency partition with a frequency reuse factor of 1 and a frequency reuse factor of N.

 The structure of the non-specific user control information transmitted by the apparatus according to the embodiment can refer to Table 1, and the apparatus can also implement the transmission processing shown in FIG. 3, and according to the step-by-step situation of the unicast service control information shown in FIG. The information is sent, the specific process has been described before, and will not be repeated here.

Through the above device, in the case that the system adopts the frequency multiplexing technology, the non-specific user control information is selected to be transmitted in different frequency partitions according to the networking requirement, and the resources of the system can be fully utilized; the specific information is indicated in the non-user control information. The type, number of users, or the size of a specific user control channel helps the terminal to quickly decode control information related to itself, thereby reducing data transmission delay and effectively improving system performance. In this embodiment, a device for transmitting unicast service control information is provided. As shown in FIG. 9, the apparatus for transmitting unicast service control information according to this embodiment includes: a configuration module 1 and a sending module 3.

 The functions of the modules shown in Figure 9 are as follows:

 The configuration module 1 is configured to configure the unicast service control information to a frequency partition with a frequency reuse factor of 1, where the unicast service control information includes non-specific user control information and/or specific user control information;

 The sending module 3 is connected to the configuration module 1 and configured to send the configured unicast service control information according to the configuration result of the configuration module 1. Moreover, non-specific user control information can be transmitted in a frequency partition with a frequency reuse factor of 1 and a frequency reuse factor of N.

 The structure of the non-specific user control information transmitted by the apparatus according to the present embodiment can refer to Table 1, and the apparatus can also implement the transmission processing shown in FIG. 7, and according to the step-by-step situation of the unicast service control information shown in FIG. The information is sent, the specific process has been described before, and will not be repeated here.

 With the apparatus according to the embodiment, it is possible to select to transmit non-specific user control information in different frequency partitions according to networking requirements, and to fully utilize system resources according to networking requirements; The information indicating the type, number of specific user control information or the size of a specific user control channel helps the terminal to quickly decode the control information related to itself, thereby reducing the data transmission delay and effectively improving the system performance.

 In addition, it should be noted that although the structures of the devices according to the device embodiment 1 and the device embodiment 2 can be referred to FIG. 9, the functions and execution processes of the configuration module 1 in the two embodiments are not the same. .

In summary, with the above technical solution of the present invention, it is possible to define unicast service control information based on the frequency partition (also referred to as frequency segmentation) for the FFR requirement, in particular It is a frequency partition for non-specific user control information transmission, and solves the problem in the related art that the unicast service control information cannot be transmitted for the requirement of the interference suppression technology, so that the system can adopt frequency reuse and meet the requirements of FFR. The unicast service control information is sent on the basis of the network. Specifically, the non-specific user control information can be sent in different frequency partitions according to the networking requirements, and the system resources can be fully utilized. In addition, the non-user control information can also be used. Indicates the type, number of specific user control information, or the size of a specific user control channel, which helps the terminal to quickly decode control information related to itself, thereby reducing data transmission delay and effectively improving system performance.

 Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed 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, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

 The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Claim

 A method for transmitting unicast service control information, comprising:

 Transmitting unicast service control information in a frequency partition having a frequency reuse factor of 1 and/or a frequency partition having a frequency reuse factor of N, wherein the unicast service control information includes non-specific user control information and/or a specific user Control information, N is a positive number not equal to 1.

 The method according to claim 1, wherein the method further comprises: indicating at least one of the following information by a field in the system broadcast message in advance: whether to transmit in a frequency partition with a frequency reuse factor of The unicast service control information, whether to send the unicast service control information in a frequency partition with a frequency reuse factor of N, a frequency division with a frequency reuse factor of 1 for transmitting unicast service control information, and a unicast service control information The frequency reuse factor is the frequency partition of N.

 The method according to claim 1, wherein the unicast is transmitted in one or more frequency partitions of a frequency partition with a frequency reuse factor of 1 and a frequency partition with a frequency reuse factor of N When the service control information, part or all of the frequency partitions in the one or more frequency partitions are pre-specified frequency partitions.

 The method according to claim 3, wherein the non-specific user control information in the unicast service control information sent in the pre-designated frequency partition comprises: Fields of other frequency partitions of information.

 The method according to claim 1, wherein the method further comprises: performing QPSK modulation of the predetermined coding rate on the non-specific user control information that needs to be transmitted.

The method according to any one of claims 1 to 5, characterized in that the non-specific user is transmitted in a frequency partition with a frequency reuse factor of 1 and/or a frequency partition with a frequency reuse factor of N The control information includes at least one non-specific user control information element, the non-specific user control information element including a solution for describing specific user control information transmitted in a frequency partition Code information.

 The method according to claim 6, wherein the non-specific user control information unit includes a resource information field, where the resource information field is used to indicate a resource size and a size of the unicast service control information. / or resource location.

 The method according to claim 6, wherein the non-specific user control information unit comprises: a field for indicating a transmission format used by the corresponding specific user control information, where the field includes a modulation mode and/or Or coding rate.

 The method according to claim 6, wherein the non-specific user control information unit comprises: indicating whether the corresponding specific user control information includes a hybrid automatic repeat request, power control information, and resource allocation. At least one of the mode information indicates a bit.

 The method according to claim 9, wherein the hybrid automatic repeat request, the power control information, and the location are included in the specific user control information corresponding to the non-specific user control information unit. In the case of at least one of the resource allocation manner information, the non-specific user control information unit includes: a field for describing the number and/or size of information included in the corresponding specific user control information.

 A method for transmitting unicast service control information, comprising:

 The unicast service control information is transmitted in a frequency partition having a frequency reuse factor of 1, wherein the unicast service control information includes non-specific user control information and/or specific user control information.

 The method according to claim 11, wherein the non-specific user control information sent in the frequency partition with a frequency reuse factor of 1 comprises: indicating whether the frequency reuse factor is N or not a field for transmitting unicast service control information in the frequency partition, and/or a field for indicating a frequency partition with a frequency reuse factor of N for transmitting unicast service control information, where N is a positive number not equal to 1.

The method according to claim 11, wherein the method further comprises: performing QPSK adjustment of a predetermined coding rate on the non-specific user control information that needs to be sent. System.

 The method according to any one of claims 11 to 13, characterized in that the non-specific user control information transmitted in the frequency partition with the frequency reuse factor of 1 includes at least one non-specific user control information. And the non-specific user control information element includes decoding information for describing specific user control information transmitted in one frequency partition.

 The method according to claim 14, wherein the non-specific user control information unit includes a resource information field, where the resource information field is used to indicate a resource size and a size of the unicast service control information. / or resource location.

 The method according to claim 14, wherein the non-specific user control information unit comprises: a field for indicating a transmission format used by the corresponding specific user control information, where the transmission format field Includes modulation mode and/or coding rate.

 The method according to claim 14, wherein the non-specific user control information unit comprises: indicating whether the corresponding specific user control information includes a hybrid automatic repeat request, power control information, and resource allocation. At least one of the mode information indicates a bit.

 The method according to claim 17, wherein the hybrid automatic repeat request, the power control information, and the location are included in the specific user control information corresponding to the non-specific user control information unit. In the case of at least one of the resource allocation manner information, the non-specific user control information unit includes: a field for describing the number and/or size of information included in the corresponding specific user control information.

 A device for transmitting unicast service control information, comprising:

a configuration module, configured to configure the unicast service control information to a frequency partition with a frequency reuse factor of 1 and/or a frequency partition with a frequency reuse factor of N, where the unicast service control information includes non-specific user control information And/or specific user control information, where N is a positive number that is not equal to 1; and a sending module, configured to send the configured unicast service control information according to a configuration result of the configuration module.

A device for transmitting unicast service control information, comprising: a configuration module, configured to configure unicast service control information to a frequency partition with a frequency reuse factor of 1, wherein the unicast service control The information includes non-specific user control information and/or specific user control information;

 And a sending module, configured to send the configured unicast service control information according to a configuration result of the configuration module.