JP5668061B2 - Method for transmitting and receiving uplink fixed resource allocation signal - Google Patents

Description

  The present invention relates to the field of communications, and in particular, to a method for transmitting and receiving uplink fixed resource allocation signals.

In a wireless communication system, a base station transmits a downlink (forward) from a base station to a mobile terminal (Mobile Station, abbreviated as MS) / uplink (reverse direction) from the mobile terminal to the base station. To communicate through.
In normal applications, multiple mobile terminals can simultaneously transmit data to the base station via the uplink, and can simultaneously receive data from the base station via the downlink.

In a data transmission system in which a base station controls scheduling, scheduling and allocation of system resources are usually performed by the base station.
The resource here includes, for example, a downlink resource when the base station performs downlink transmission, and an uplink resource when the mobile terminal performs uplink transmission.

Currently, a fixed resource allocation technique is often employed in order to efficiently reduce the control overhead of a wireless communication system and increase the throughput of the entire system.
With this technique, it is possible to reduce description overhead for allocation of mobile terminal resources having a specified transmission period and a fixed packet length, and improve system performance.
The process of resource allocation typically includes operations such as message definition, resource allocation, and resource reallocation.

Taking the standard IEEE 802.16 as an example, as shown in FIG. 1, the base station performs uplink fixed resource allocation information UL Persistent A- in the advance map (abbreviated as Advanced MAP, A-MAP) at the K-th frame. A fixed resource (Persistent A-MAP) PA1 is allocated to the mobile terminal MS-A via the MAP IE (where Persistent means fixed, permanent, or continuous).
The allocation period is L frames (assuming L = 4 frames). That is, MS-A uses fixed resources allocated by the base station in the kth frame, the (k + 4) th frame,... (K + N * 4) th frame.
Then, the base station assigns a feedback channel (HARQ Feedback AL Location) HFA1 for returning whether or not the mobile terminal has correctly received the UL Persistent A-MAP IE to the mobile terminal MS-A.

  If a feedback channel (HARQ Feedback AL Location) is assigned to each mobile terminal in order to return whether the mobile terminal has correctly received UL Persistent A-MAP IE information as in the above method, a signaling overhead is provided. Cause waste.

According to the present invention, there is a signaling overhead problem in allocating a feedback channel for each mobile terminal in order to make the mobile terminal respond correctly whether UL Persistent A-MAP IE information has been received. It was made in consideration.
In order to solve the above problems, an object of the present invention is to provide an improved method for transmitting an uplink fixed resource allocation signal.

  According to one aspect of the present invention, there is provided a method for transmitting an uplink fixed resource allocation signal, wherein the base station instructs the mobile terminal to perform a feedback operation of the mobile terminal when the uplink fixed resource allocation signal is successfully received. There is provided a method for transmitting an uplink fixed resource allocation signal, including transmitting an uplink fixed resource allocation signal including feedback operation instruction information for performing the operation.

In the related art, the base station allocates a feedback channel for each mobile terminal.
In an embodiment of the present invention, the feedback operation instruction information indicates a feedback operation to be performed when the mobile terminal successfully receives an uplink fixed resource allocation signal, and then the base station performs the mobile operation by the feedback operation. Since the feedback channel is to be allocated to the terminal, the number of feedback channels to be allocated by the base station can be reduced, and signal waste can be avoided.

In one aspect, the feedback operation instruction information includes at least feedback position instruction information among feedback position instruction information, feedback information type, code word sequence index information, and feedback enable instruction information.

The feedback location indication information includes the location of the resource that transmits feedback information in the fixed resource allocated to the mobile terminal, the location of the resource that transmits feedback information in the common feedback resource, and the resource that transmits the feedback information position in the uplink resources, that instructs the one of the mapping method and the calculation method for obtaining the position of the resources for transmitting feedback information.

  The resource for transmitting feedback information is one physical resource allocation unit, a plurality of physical resource allocation units, a part of resources in one physical resource allocation unit, and a part of resources in a plurality of physical resource allocation units. It is preferable that the physical allocation unit has a two-dimensional structure having a time domain and a frequency domain including one or more codes and one or more subcarriers.

  The feedback information preferably indicates that the mobile terminal has successfully received the uplink fixed resource allocation signal. The feedback information type preferably includes one of identification information of the mobile terminal, indication information related to the fixed resource allocated to the mobile terminal, and a code word sequence. The code word sequence is preferably an orthogonal or quasi-orthogonal code word sequence set. The code word sequence index information preferably indicates a code word sequence for performing a spread spectrum operation on the feedback information. Preferably, the feedback enable indication information indicates whether transmission of feedback information from the mobile terminal to the base station is required.

  According to another aspect of the present invention, a mobile terminal receives an uplink fixed resource allocation signal from a base station, and performs a feedback operation according to feedback operation instruction information included in the uplink fixed resource allocation signal. A method for receiving an uplink fixed resource allocation signal is also provided.

In the other aspect, the feedback operation instruction information includes at least feedback position instruction information among the feedback position instruction information , the type of feedback information, the code word sequence index information, and the feedback enable instruction information. . Preferably, the feedback enable indication information indicates whether transmission of feedback information from the mobile terminal to the base station is required. The feedback information type preferably includes one of identification information of the mobile terminal, indication information related to the fixed resource allocated to the mobile terminal, and a code word sequence.

  Performing a feedback operation using the feedback operation instruction information includes determining whether the mobile terminal transmits feedback information to the base station using the feedback enable instruction information, and determining the resource of which the mobile terminal transmitted the feedback information using the feedback position instruction information. The mobile terminal transmits feedback information at a determined resource position, and the mobile terminal performs spread spectrum on the feedback information in the code word sequence indicated by the code word sequence index information. And transmitting at least one of the spread spectrum feedback information at a fixed resource location. The feedback information preferably indicates that the mobile terminal has successfully received the uplink fixed resource allocation signal.

  The above method also confirms that if the base station has successfully received feedback information from the mobile terminal, the mobile terminal has successfully received the uplink fixed resource allocation signal; It preferably includes retransmitting an uplink fixed resource allocation signal to the terminal.

  According to another aspect of the present invention, the mobile terminal receives an uplink fixed resource allocation signal from the base station, and according to the location information of the uplink fixed resource allocated to the mobile terminal from the uplink fixed resource allocation signal. Resources obtained by mapping or calculation, all or some of the resources in the common feedback resource allocated to the mobile terminal, and all or uplink fixed resources allocated to the mobile terminal from the uplink fixed resource allocation signal An uplink fixed resource allocation signal reception method including transmitting feedback information on a scheduled resource including one of some resources is provided.

  When the scheduled resource is all or a part of the uplink fixed resource allocated to the mobile terminal from the uplink fixed resource allocation signal, the position of the scheduled resource in the uplink fixed resource is preferably set as a default.

  The feedback information preferably indicates that the mobile terminal has successfully received the uplink fixed resource allocation signal. The feedback information preferably includes one of identification information of the mobile terminal, instruction information related to the fixed resource allocated to the mobile terminal, and a code word sequence.

  If the base station successfully receives feedback information from the mobile terminal, it confirms that the mobile terminal has successfully received the uplink fixed resource allocation signal; otherwise, the base station allocates uplink fixed resource to the mobile terminal. It is preferable to retransmit the signal.

  According to another aspect of the invention, a mobile terminal in a mobile terminal group receives an uplink group resource allocation signal from a base station and maps or calculates according to uplink group resource location information. Resources obtained, all or some of the common feedback resources assigned to one or more mobile terminal groups, and uplink groups assigned to mobile terminals from uplink group resource assignment signals Provided a method for receiving an uplink group resource allocation signal including sending feedback information on a scheduled resource including one of all or some of the resources.

  The feedback information preferably indicates that the mobile terminal has successfully received the uplink group resource allocation signal. Feedback information includes mobile terminal group identification information, mobile terminal identification information, indication information related to group resources allocated to the mobile terminal, code word sequence, and orthogonal or quasi-orthogonal code word Includes mobile terminal group identification information after spread spectrum in sequence, mobile terminal identification information, indication information on group resources allocated to the mobile terminal, and one of code word sequences It is preferable.

  The base station receives feedback information or spread spectrum feedback information from the mobile terminal, and when a plurality of mobile terminals perform feedback operation with the same resource, the base station provides feedback information or spread spectrum feedback in the CDMA scheme. It is preferred to further include distinguishing.

  If the base station successfully receives the feedback information from the mobile terminal, the base station confirms that the mobile terminal has successfully received the uplink group resource allocation signal; otherwise, the base station It is preferable to retransmit the resource allocation signal or the uplink resource allocation signal.

According to at least one of the above technical solutions provided by the present invention, each mobile terminal is provided with feedback operation instruction information included in the uplink fixed resource allocation signal or by instructing the feedback operation of the mobile terminal by default setting. It is no longer necessary to allocate a feedback channel, and a reduction in signaling overhead can be realized compared to existing technologies.
The drawings are provided to provide a further understanding of the invention and, as part of the specification, illustrate the invention together with embodiments of the invention and are not intended to limit the invention.

FIG. 1 is a diagram illustrating a fixed resource allocation process related to a related technology. FIG. 2 is a diagram illustrating a process of fixed resource allocation according to the first, second, third, fourth, and fifth embodiments of the present invention. FIG. 3 is a diagram illustrating a fixed resource allocation process according to the sixth embodiment of the present invention. FIG. 4 is a diagram illustrating a fixed resource allocation process according to the seventh and eighth embodiments of the present invention. FIG. 5 is a diagram showing a fixed resource allocation process according to the ninth and tenth embodiments of the present invention. FIG. 6 is a diagram showing a group resource allocation process according to the eleventh embodiment of the present invention.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. As long as they do not contradict each other, the features described in the embodiments and the embodiments of the present invention can be combined.

In the following description, the feedback operation instruction information includes feedback position instruction information, feedback information type, code word sequence index information (here, the code word sequence is an orthogonal or quasi-orthogonal code word sequence) And at least one of feedback enable indication information.
Among them, the code word sequence index information is for instructing the mobile terminal of a code word sequence for performing a spread spectrum operation on the feedback information.

  The feedback enable instruction information indicates whether transmission of feedback information from the mobile terminal to the base station is requested.

The feedback location indication information is a location in a fixed resource assigned to a mobile terminal of a resource that transmits feedback information, a location in a common feedback resource that is assigned to a mobile terminal of a resource that transmits feedback information, and a transmission of feedback information. This is to indicate one of a mapping method or a calculation method for acquiring the position of the resource to be transmitted in the uplink resource and the position of the resource to transmit the feedback information.
The feedback information here indicates that the mobile terminal has successfully received the uplink fixed resource allocation signal.
The feedback information type here includes one of mobile terminal identification information, instruction information related to fixed resources allocated to the mobile terminal, and a code word sequence.
Among them, the feedback information is for indicating that the mobile terminal has successfully received the uplink fixed resource allocation signal.

The resources for sending feedback information are one physical resource allocation unit, a plurality of physical resource allocation units, some resources in one physical resource allocation unit, and some resources in multiple physical resource allocation units. One of them.
Among them, the physical resource allocation unit has a two-dimensional structure having a time domain and a frequency domain including one or more codes and one or more subcarriers.

In the following first to third embodiments, an uplink fixed resource allocation signal is transmitted from the base station to the mobile terminal. The uplink fixed resource allocation signal includes feedback operation instruction information.
Thereafter, the mobile terminal feeds back the successful reception of the uplink fixed resource allocation signal according to the feedback operation instruction information.

[Example 1]
In the present embodiment, the period of the A-MAP message is one subframe.
One frame includes N subframes. It is assumed that there are N _DL downlink subframes, N _UL uplink subframes, and N _DL + N _UL = N.
In this embodiment, N = 8, N _DL = 5, N _UL = 3, and the base station transmits A-MAP in subframe 1, subframe 2 and subframe 3 in five downlink subframes. Assume that the messages include relationship control information for uplink subframe 6, uplink subframe 7, and uplink subframe 8, respectively.

As shown in FIG. 2, the base station transmits an uplink fixed resource PA1 to the mobile terminal MS-A via the uplink fixed resource allocation signal UL Persistent A-MAP IE of the A-MAP message of the subframe 1 at the k-th frame. (Included in subframe 6).
The allocation cycle (AL Location Period, abbreviated as AP) is 4 frames.
As shown in FIG. 2, the LRU is one resource allocation unit having a two-dimensional structure having a time domain and a frequency domain including one or more codes and one or more subcarriers.

  The UL Persistent A-MAP IE may include (1) feedback location indication information and (2) feedback information in addition to the information related to the uplink fixed resource PA1 allocated to the mobile terminal MS-A. preferable.

(1) Feedback position instruction information In the present embodiment, what is indicated by the feedback position instruction information is the relative position information of LRU1 in PA1. For example, “01” represents the first LRU in PA1, that is, LRU1.
Alternatively, the location information of LRU1 can be represented by actual location information in the uplink resource. For example, “00001” represents position information in the uplink resource of the first LRU (that is, LRU1) of PA1.

(2) Feedback information In this embodiment, the feedback information is a predefined code word sequence. For example, “1” indicates that the UL Persistent A-MAP IE has been successfully received.
The code word sequence is preferably from a set of orthogonal code word sequence sets or from a set of quasi-orthogonal code word sequence sets.
Alternatively, the feedback information here may be identification information of the mobile terminal (for example, “001” represents MS-A) or information on uplink fixed resources allocated to the mobile terminal (eg “10” is the number of LRUs of PA1). 2 and “01” indicates that the initial position of PA1 is LRU1, or “10” indicates that the end position of PA1 is LRU2.

The mobile terminal MS-A receives and decodes the uplink fixed resource allocation signal UL Persistent A-MAP IE transmitted from the base station, and performs a feedback operation of the uplink fixed resource allocation signal.
Specifically, the feedback operation preferably includes the following steps (1) to (2).

  In step (1), the mobile terminal MS-A receives the UL Persistent A-MAP IE from the base station and decodes it.

In step (2), the mobile terminal MS-A determines the position of the resource for transmitting the feedback information according to the feedback position indication information, and transmits the feedback information (“1”) with the LRU 1 indicated in the feedback position indication information. To do.
In this step, when the feedback information is identification information of the mobile terminal, the mobile terminal may feed back the identification information of the mobile terminal.

When the base station receives the feedback information “1” from the LRU 1 of the PA 1 assigned to the mobile terminal MS-A, the base station confirms that the mobile terminal MS-A has successfully received the UL Persistent A-MAP IE.
Otherwise, the mobile terminal MS-A retransmits the signal to the mobile terminal MS-A, assuming that the UL Persistent A-MAP IE has not been successfully received.
Alternatively, when the base station decodes the fixed resource allocated to the mobile terminal and decodes the mobile terminal identification information (eg, STID) of the mobile terminal from the feedback information, the mobile terminal performs UL Persistent A-MAP IE. Understand that received successfully.

  When the mobile terminal MS-A has already successfully received the UL Persistent A-MAP IE, the mobile terminal MS-A transmits the data information using the LRU1 resource when the next PA1 resource is allocated.

  Assuming that the mobile terminal MS-A has successfully received the UL Persistent A-MAP IE in this embodiment, the mobile terminal MS-A uses the LRU1 resource in the subform 6 of the (K + 4) th frame, and the data information Will be sent.

[Example 2]
In the present embodiment, the period of the A-MAP message is one subframe.
N subframes are included in one frame. It is assumed that there are N _DL downlink subframes, N _UL uplink subframes, and N _DL + N _UL = N.
In this embodiment, N = 8, N _DL = 5, N _UL = 3, and the base station transmits A-MAP in subframe 1, subframe 2 and subframe 3 in five downlink subframes. Assume that the information includes relationship control information for uplink subframe 6, uplink subframe 7, and uplink subframe 8, respectively.

As shown in FIG. 2, the base station transmits an uplink fixed resource to the mobile terminal MS-A through the uplink fixed resource allocation signal UL Persistent A-MAP IE of the A-MAP message of subframe 1 at the k-th frame. PA1 (included in subframe 6) is assigned.
The allocation period (AP) is 4 frames.
As shown in FIG. 2, the LRU is one resource allocation unit having a two-dimensional structure having a time domain and a frequency domain including one or more codes and one or more subcarriers.

  The UL Persistent A-MAP IE includes (1) feedback location indication information, (2) feedback information, and (3) orthogonal in addition to the information related to the uplink fixed resource PA1 allocated to the mobile terminal MS-A. Or index information of one code word sequence in the quasi-orthogonal code word sequence set.

(1) Feedback position instruction information The position information indicated by the feedback position instruction information is the relative position information of LRU1 in PA1. For example, “01” represents the first LRU in PA1, that is, LRU1.
Alternatively, the location information of LRU1 can be represented by actual location information in the uplink resource. For example, “00001” represents position information in the uplink resource of the first LRU (that is, LRU1) of PA1.

(2) Feedback information In this embodiment, the feedback information is a predefined code word sequence. For example, “1” indicates that the UL Persistent A-MAP IE has been successfully received.
Alternatively, the feedback information includes identification information of the mobile terminal (for example, “001” represents MS-A), or information on uplink fixed resources allocated to the mobile terminal (eg, “10” indicates that the number of LRUs of PA1 is 2. In other words, “01” indicates that the initial position of PA1 is LRU1, or “10” indicates that the end position of PA1 is LRU2.

(3) Index information of one code word sequence in an orthogonal or quasi-orthogonal code word sequence set In this embodiment, for example, one index word in an orthogonal or quasi-orthogonal code word sequence set. The index information of the code word sequence is “001”.
In other words, the first sequence of code word sequence sets is assigned to the mobile terminal MS-A.
Assume that the sequence assigned to the mobile terminal MS-A is An = {a ₁ , a ₂ ... A _n }.

The mobile terminal MS-A receives the uplink fixed resource allocation signal UL Persistent A-MAP IE from the base station, decodes it, and performs a feedback operation on it.
Specifically, the feedback operation preferably includes the following steps (1) to (2).

  In step (1), the mobile terminal MS-A receives the UL Persistent A-MAP IE from the base station and decodes it.

  In step (2), the mobile terminal MS-A determines the resource position for transmitting the feedback information based on the feedback position indication information, and sends the feedback information (“1”) with the LRU 1 indicated by the feedback position indication information. A code word sequence Bn obtained by performing spectrum spread with the code word sequence An is transmitted.

The base station obtains the spread spectrum sequence Bn from the LRU1 of PA1 assigned to the mobile terminal MS-A.
Reverse spectrum spreading is performed on Bn with a known code word sequence An.
If the feedback information “1” can be recovered, it is confirmed that the mobile terminal MS-A has successfully received the UL Persistent A-MAP IE.
Otherwise, assuming that the mobile terminal MS-A has not successfully received the UL Persistent A-MAP IE, when transmitting the next UL Persistent A-MAP IE, the mobile terminal MS-A retransmits the signal to the mobile terminal MS-A. Send.

  When the mobile terminal MS-A has already successfully received the UL Persistent A-MAP IE, it transmits data information using the LRU1 resource at the time of the next PA1 resource allocation.

  In this embodiment, assuming that the mobile terminal MS-A has already successfully received the UL Persistent A-MAP IE, the mobile terminal MS-A uses the LRU1 resource in the subframe 6 of the (K + 4) th frame to obtain data information. Send.

[Example 3]
In the present embodiment, the period of the A-MAP message is one subframe.
One frame includes N subframes. It is assumed that there are N _DL downlink subframes, N _UL uplink subframes, and N _DL + N _UL = N.
In this embodiment, N = 8, N _DL = 5, N _UL = 3, and the base station transmits A− transmitted in subframe 1, subframe 2 and subframe 3 among the five downlink subframes. Assume that the MAP message includes relationship control information for uplink subframe 6, uplink subframe 7, and uplink subframe 8, respectively.

As shown in FIG. 2, the base station uplink-fixes to the mobile terminal MS-A via the uplink fixed resource allocation signal UL Persistent A-MAP IE of the A-MAP message of subframe 1 at the k-th frame. Resource PA1 (included in subframe 6) is allocated.
The allocation cycle (AL Location Period, abbreviated as AP) is 4 frames.

  The UL Persistent A-MAP IE preferably further includes (1) feedback enable instruction information in addition to the uplink fixed resource PA1 allocated to the mobile terminal MS-A.

(1) Feedback enable instruction information The feedback enable instruction information indicates whether or not transmission of feedback information from the mobile terminal MS-A to the base station is requested.
In this embodiment, bit “1” indicates that transmission of feedback information from the mobile terminal MS-A to the base station is required, and bit “0” is transmitted from the mobile terminal MS-A to the base station. This means that transmission of feedback information is not required.

  Specifically, the mobile terminal MS-A receives and decodes the uplink fixed resource allocation signal UL Persistent A-MAP IE from the base station includes the following steps (1) to (2).

  In step (1), the mobile terminal MS-A receives the UL Persistent A-MAP IE from the base station and decodes it.

In step (2), the mobile terminal MS-A receives feedback enable indication information and determines whether it is necessary to send feedback information to the base station.
In this embodiment, when the feedback enable indication information is “1”, the mobile terminal MS-A sends a resource or signal of standard default arrangement to the base station (as shown in Table 1, UL Persistent A-MAP IE). The resource for transmitting feedback information to the mobile terminal MS-A is transmitted to the mobile terminal MS-A via the resource).
Further, when the feedback enable instruction information is “0”, the mobile terminal MS-A does not transmit feedback information to the base station.

Described in this embodiment is that UL Persistent A-MAP IE allocates uplink fixed resources to mobile terminal MS-A.
Similarly, the method described in this embodiment can also be applied to removing uplink fixed resources allocated to the mobile terminal MS-A by the UL Persistent A-MAP IE.

In the following fourth to sixth embodiments, the base station transmits an uplink fixed resource allocation signal via a downlink channel, and transmits uplink fixed resource allocation information to the mobile terminal.
Among them, the uplink fixed resource allocation signal includes information on the uplink fixed resource allocated to the mobile terminal.
The mobile terminal transmits feedback after successfully receiving the uplink fixed resource allocation signal from the base station.

[Example 4]
In the present embodiment, the period of the A-MAP message is one subframe.
One frame includes N subframes. It is assumed that there are N _DL downlink subframes, N _UL uplink subframes, and N _DL + N _UL = N.
In this embodiment, N = 8, N _DL = 5, N _UL = 3, and the base station transmits A− transmitted in subframe 1, subframe 2 and subframe 3 among the five downlink subframes. Assume that the MAP message includes the relationship control information of uplink subframe 6, uplink subframe 7, and uplink subframe 8, respectively.

As shown in FIG. 2, the base station uplink-fixes to the mobile terminal MS-A via the uplink fixed resource allocation signal UL Persistent A-MAP IE of the A-MAP message of subframe 1 at the k-th frame. Resource PA1 (included in subframe 6) is allocated.
The allocation period (AP) is 4 frames.
As shown in FIG. 2, the LRU is one resource allocation unit having a two-dimensional structure having a time domain and a frequency domain including one or more codes and one or more subcarriers.

  The UL Persistent A-MAP IE includes information on the uplink fixed resource PA1 allocated to the mobile terminal MS-A.

The mobile terminal MS-A performs a feedback operation after successfully receiving the UL Persistent A-MAP IE from the base station.
Specifically, the feedback information is transmitted using the scheduled resource.
The planned resource here is
Resources obtained by mapping or calculating according to the location information of the uplink fixed resource allocated to the mobile terminal by the uplink fixed resource allocation signal;
All or some of the common feedback resources allocated to the mobile terminal; and
All or part of uplink fixed resources allocated to the mobile terminal from an uplink fixed resource allocation signal;
Including one of
Among them, when the scheduled resource is all or a part of the uplink fixed resource allocated to the mobile terminal from the uplink fixed resource allocation signal, the position of the scheduled resource in the uplink fixed resource is a default setting.
For example, default settings can be made via standards.

  Based on the above description, the feedback operation here preferably includes the following steps (1) to (3).

In step (1), resource location information for transmitting UL Persistent A-MAP IE feedback information is determined.
In one embodiment, the location information of the resource is stored in the mobile terminal and the base station as a standard arrangement.
In the present embodiment, it is assumed that the first LRU among the fixed resources allocated to the mobile terminal, that is, the resource located in LRU1, is a resource for transmitting feedback information.

In step (2), the content of the feedback information is determined.
In the present embodiment, it is assumed that the content of the feedback information is set as a code word sequence defined in advance as a standard default setting.
For example, “1” indicates that the UL Persistent A-MAP IE has been successfully received.
The code word sequence is preferably from a set of orthogonal code word sequence sets or from a set of quasi-orthogonal code word sequence sets.

The feedback information may be mobile terminal identification information (for example, “001” represents MS-A).
Alternatively, the feedback information is a message related to the uplink fixed resource of the mobile terminal (for example, “10” indicates that the number of LRUs of PA1 is 2, “01” indicates that the initial position of PA1 is LRU1, or “ 10 "can also indicate that the end position of PA1 is LRU2.

  Preferably, in step (3), the mobile terminal MS-A transmits the feedback information (“1”) in the feedback resource LRU1.

The base station receives feedback information from the mobile terminal.
When the base station acquires feedback information “1” with LRU1 of PA1 assigned to mobile terminal MS-A, it confirms that mobile terminal MS-A has successfully received UL Persistent A-MAP IE.
Otherwise, assuming that the mobile terminal MS-A did not successfully receive the UL Persistent A-MAP IE, the UL Persistent A-MAP IE signal is retransmitted to the mobile terminal MS-A.

  When the mobile terminal MS-A has already successfully received the UL Persistent A-MAP IE, it transmits data information using the LRU1 resource at the time of the next PA1 resource allocation.

In this embodiment, it is assumed that the mobile terminal MS-A has already successfully received the UL Persistent A-MAP IE.
The mobile terminal MS-A transmits data information using the LRU1 resource of the subframe 6 of the (K + 4) th frame.

[Example 5]
In the present embodiment, the period of the A-MAP message is one subframe.
One frame includes N subframes. It is assumed that there are N _DL downlink subframes, N _UL uplink subframes, and N _DL + N _UL = N.
In this embodiment, N = 8, N _DL = 5, N _UL = 3, and the base station transmits A− transmitted in subframe 1, subframe 2 and subframe 3 among the five downlink subframes. It is assumed that the MAP information includes the relationship control information of uplink subframe 6, uplink subframe 7, and uplink subframe 8, respectively.

As shown in FIG. 2, the base station uplink-fixes to the mobile terminal MS-A via the uplink fixed resource allocation signal UL Persistent A-MAP IE of the A-MAP message of subframe 1 at the k-th frame. Resource PA1 (included in subframe 6) is allocated.
The allocation period (AP) is 4 frames.
As shown in FIG. 2, the LRU is one resource allocation unit having a two-dimensional structure having a time domain and a frequency domain including one or more codes and one or more subcarriers.

  The UL Persistent A-MAP IE includes information related to the uplink fixed resource PA1 allocated to the mobile terminal MS-A.

The mobile terminal MS-A performs a feedback operation after successfully receiving the UL Persistent A-MAP IE from the base station.
Specifically, the following steps (1) to (3) are included.

In step (1), the location information of the resource for transmitting the UL Persistent A-MAP IE feedback information is determined.
In one embodiment, the location information of the resource is stored in the mobile terminal and the base station as a standard arrangement.
In the present embodiment, it is assumed that the location of the resource is obtained by calculating with a kind of mapping rule or formula such as, for example, Feedback Location = (PA Location).
Among them, PA Location is location information of fixed resources allocated to the mobile terminal.
Feedback Location is information on the location of the resource that transmits UL Persistent A-MAP IE feedback information.
f represents a mapping method or a calculation formula.
The position of the feedback resource obtained through f may be inside the PA Location or outside the PA Location.
In the present embodiment, it is assumed that the resource for feedback acquired through Feedback Location = (PA Location) is LRU1.
As shown in FIG. 3, the information on the position of LRU1 is that LRU1 is outside the PA1 fixed resource.

In step (2), the content of the feedback information is determined.
In the present embodiment, it is assumed that the content of the feedback information is set as a code word sequence defined in advance as a standard default setting.
For example, “1” indicates that the UL Persistent A-MAP IE has been successfully received.
The code word sequence is preferably from a set of orthogonal code word sequence sets or from a set of quasi-orthogonal code word sequence sets.

Alternatively, the feedback information here may be identification information of the mobile terminal (for example, “001” represents MS-A).
Alternatively, the feedback information may be information related to uplink fixed resources of the mobile terminal (for example, “10” indicates that the number of LRUs of PA1 is 2, “01” indicates that the initial position of PA1 is LRU1, or “ 10 "can also indicate that the end position of PA1 is LRU2.

  In step (3), the mobile terminal MS-A includes sending feedback information (“1”) on the feedback resource LRU1.

The base station receives feedback information from the mobile terminal.
When the base station acquires feedback information “1” with LRU1 of PA1 assigned to mobile terminal MS-A, it confirms that mobile terminal MS-A has successfully received UL Persistent A-MAP IE.
Otherwise, assuming that the mobile terminal MS-A has not successfully received the UL Persistent A-MAP IE, it re-transmits the UL Persistent A-MAP IE signal to the mobile terminal MS-A.

  When the mobile terminal MS-A has already successfully received the UL Persistent A-MAP IE, the mobile terminal MS-A transmits data information using the LRU1 resource when the next PA1 resource is used.

In this embodiment, it is assumed that the mobile terminal MS-A has already successfully received the UL Persistent A-MAP IE.
The mobile terminal MS-A transmits data information using the LRU1 resource of the subframe 6 of the (k + 4) th frame.

[Example 6]
In the present embodiment, the period of the A-MAP message is one subframe.
One frame includes N subframes. It is assumed that there are N _DL downlink subframes, N _UL uplink subframes, and N _DL + N _UL = N.
In this embodiment, N = 8, N _DL = 5, N _UL = 3, and the base station transmits A− transmitted in subframe 1, subframe 2 and subframe 3 among the five downlink subframes. It is assumed that the MAP information includes the relationship control information of uplink subframe 6, uplink subframe 7, and uplink subframe 8, respectively.

As shown in FIG. 3, the base station is uplink fixed to the mobile terminal MS-A via the uplink fixed resource allocation signal UL Persistent A-MAP IE of the A-MAP message of subframe 1 at the k-th frame. Resource PA1 (included in subframe 6) is allocated.
The allocation period (AP) is 4 frames.
As shown in FIG. 3, LRU is one resource allocation unit having a two-dimensional structure having a time domain and a frequency domain including one or more codes and one or more subcarriers.

  The UL Persistent A-MAP IE includes information related to the uplink fixed resource PA1 allocated to the mobile terminal MS-A.

After the mobile terminal MS-A has successfully received the UL Persistent A-MAP IE, it performs a feedback operation.
Specifically, the feedback operation here preferably includes the following steps (1) to (3).

In step (1), resource location information for transmitting UL Persistent A-MAP IE feedback information is determined.
In one embodiment, the location information of the resource is stored in the mobile terminal and the base station as a standard arrangement.
In the present embodiment, it is assumed that the location of the resource is obtained by calculating with a kind of mapping rule or formula such as, for example, Feedback Location = (PA Location).
Among them, PA Location is location information of fixed resources allocated to the mobile terminal.
Feedback Location is information on the location of the resource that transmits UL Persistent A-MAP IE feedback information.
f represents a kind of mapping method or calculation formula.
The position of the feedback resource obtained through f may be inside the PA Location or outside the PA Location.
In the present embodiment, it is assumed that the resource for feedback acquired through Feedback Location = (PA Location) is LRU1.
As shown in FIG. 3, the information on the position of LRU1 is that LRU1 is outside the PA1 fixed resource.

In step (2), the content of the feedback information is determined.
In the present embodiment, it is assumed that the content of the feedback information is set as a code word sequence defined in advance as a standard default setting.
For example, “1” indicates that the UL Persistent A-MAP IE has been successfully received. The code word sequence is transmitted after being spread spectrum with an orthogonal or quasi-orthogonal code word sequence.
In this example, the code word sequence of chosen by the mobile terminal MS-A orthogonal or quasi-orthogonal Assume that _{An = {a 1, a 2} ... a n}.
The mobile terminal MS-A transmits a code word sequence Bn obtained by spectrum spreading the feedback information (“1”) with the code word sequence An in LRU1.

  In step (3), it is preferable that the mobile terminal MS-A includes transmitting feedback information Bn with the feedback resource LRU1.

The base station receives feedback information from the mobile terminal.
When the base station despreads the feedback information in the LRU1 assigned to the mobile terminal MS-A with a known code word sequence An and recovers the specific information “1”, the base station MS-A Confirm that the UL Persistent A-MAP IE has been successfully received.
Otherwise, assuming that the mobile terminal MS-A has not successfully received the UL Persistent A-MAP IE, it re-transmits the UL Persistent A-MAP IE signal to the mobile terminal MS-A.

If the mobile terminal MS-A has already successfully received the UL Persistent A-MAP IE, the base station releases the LRU1 resource.
The resource is allocated to other operations.

What has been described above is an implementation process according to an embodiment of the present invention in the case of allocating resources to one mobile terminal.
The present invention is not limited to the above.
The following seventh to tenth embodiments are processes related to allocating uplink fixed resources to a plurality of mobile terminals.

[Example 7]
In the present embodiment, the period of the A-MAP message is one subframe.
One frame includes N subframes. It is assumed that there are N _DL downlink subframes, N _UL uplink subframes, and N _DL + N _UL = N.
In this embodiment, N = 8, N _DL = 5, N _UL = 3, and the base station transmits A− transmitted in subframe 1, subframe 2 and subframe 3 among the five downlink subframes. It is assumed that the MAP information includes the relationship control information of uplink subframe 6, uplink subframe 7, and uplink subframe 8, respectively.

As shown in FIG. 4, the base station transmits the mobile terminal MS-A and the mobile terminal MS- through the uplink fixed resource allocation signal UL Persistent A-MAP IE of the A-MAP message of the subframe 1 at the k-th frame. B, the uplink fixed resource PA1 (included in subframe 6 and the allocation period (AP) is 4 frames), PA2 (included in subframe 6 and the allocation period (AP) is 4 PA3 (included in subframe 6 and assigned period (AP) is 4 frames).
As shown in FIG. 4, the LRU is one resource allocation unit having a two-dimensional structure having a time domain and a frequency domain including one or more codes and one or more subcarriers.

  The UL Persistent A-MAP IE includes information related to the uplink fixed resources PA1, PA2, and PA3 allocated to the mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C, and the mobile terminal MS-A. , Mobile terminal MS-B, and location information of common feedback resource PA-C allocated to mobile terminal MS-C.

The mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C perform a feedback operation after successfully receiving the UL Persistent A-MAP IE from the base station.
Specifically, it is preferable to include the following steps (1) to (3).

In step (1), position information in the common feedback resource PA-C is determined for the resource for transmitting the UL Persistent A-MAP IE feedback information.
In one embodiment, the location information of the resource is stored in the mobile terminal and the base station as a standard arrangement.
In the present embodiment, it is assumed that the location of the resource is obtained by calculating with a kind of mapping rule or formula such as FeedbackBacklocation = f (mobile terminal index information).
Among them, Feedback Location is information on the location of the resource that transmits UL Persistent A-MAP IE feedback information.
f represents a certain mapping method or calculation formula.
Obtain location information of feedback resources of each mobile terminal via f.
In this embodiment, as shown in FIG. 4, the resources for feedback acquired by the mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C via Feedback Location = f (mobile terminal index information) are respectively Assuming the first LRU, the second LRU, and the third LRU, the resources LRU1, LRU2, and LRU3 are indicated, respectively.

In step (2), the content of the feedback information is determined.
In the present embodiment, it is assumed that the content of the feedback information is set as a code word sequence that is predefined in the standard default setting.
For example, “1” indicates that the UL Persistent A-MAP IE has been successfully received.
The code word sequence is preferably from a set of orthogonal code word sequence sets or from a set of quasi-orthogonal code word sequence sets.

The feedback information may be mobile terminal identification information.
For example, “001” represents MS-A, “010” represents MS-B, and “011” represents MS-C.
Alternatively, the feedback information may be related information on uplink fixed resources allocated to the mobile terminal, for example, initial position information, end position information, resource size information of the fixed resources, or other possible fixed resources. It may be information.

  In step (3), the mobile terminal MS-A gives feedback information (“1”) with the feedback resource LRU1, the mobile terminal MS-B gives feedback information (“1”) with the feedback resource LRU2, and the mobile terminal MS- C transmits feedback information (“1”) in feedback resource LRU3.

The base station receives feedback information from the mobile terminal.
When the base station acquires feedback information “1” with the LRU 1 of the PA-C assigned to the mobile terminal MS-A, the base station confirms that the mobile terminal MS-A has successfully received the UL Persistent A-MAP IE.
Otherwise, the mobile terminal MS-A successfully re-transmits the UL Persistent A-MAP IE signal to the mobile terminal MS-A, assuming that the UL Persistent A-MAP IE has not been successfully received.
When the base station obtains feedback information “1” with the LRU 2 of the PA-C assigned to the mobile terminal MS-B, the base station confirms that the mobile terminal MS-B has successfully received the UL Persistent A-MAP IE.
Otherwise, assuming that the mobile terminal MS-B has not successfully received the UL Persistent A-MAP IE, it retransmits another UL Persistent A-MAP IE signal to the mobile terminal MS-B.
When the base station obtains feedback information “1” in the LRU 3 of the PA-C assigned to the mobile terminal MS-C, the base station confirms that the mobile terminal MS-C has successfully received the UL Persistent A-MAP IE.
Otherwise, the mobile terminal MS-C retransmits the UL Persistent A-MAP IE signal separately to the mobile terminal MS-C, assuming that the UL Persistent A-MAP IE has not been successfully received.

If the mobile terminal MS-A has already successfully received the UL Persistent A-MAP IE, the base station releases the LRU1 resource and allocates the resource for other operations. Similarly, if the mobile terminal MS-B has already successfully received the UL Persistent A-MAP IE, the base station releases the LRU2 resource and allocates the resource for other operations.
If the mobile terminal MS-C has already received the UL Persistent A-MAP IE successfully, the base station releases the LRU3 resource and allocates the resource to other operations.

[Example 8]
In the present embodiment, the period of the A-MAP message is one subframe.
One frame includes N subframes. It is assumed that there are N _DL downlink subframes, N _UL uplink subframes, and N _DL + N _UL = N.
In this embodiment, N = 8, N _DL = 5, N _UL = 3, and the base station transmits A− transmitted in subframe 1, subframe 2 and subframe 3 among the five downlink subframes. Assume that the MAP message includes the relationship control information of uplink subframe 6, uplink subframe 7, and uplink subframe 8, respectively.

As shown in FIG. 4, the base station transmits the mobile terminal MS-A and the mobile terminal MS- through the uplink fixed resource allocation signal UL Persistent A-MAP IE of the A-MAP message of the subframe 1 at the k-th frame. B, the uplink fixed resource PA1 (included in subframe 6 and the allocation period (AP) is 4 frames), PA2 (included in subframe 6 and the allocation period (AP) is 4 PA3 (included in subframe 6 and assigned period (AP) is 4 frames).
As shown in FIG. 4, the LRU is one resource allocation unit having a two-dimensional structure having a time domain and a frequency domain including one or more codes and one or more subcarriers.

  The UL Persistent A-MAP IE includes information related to the uplink fixed resources PA1, PA2, and PA3 allocated to the mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C, and the mobile terminal MS- A, mobile terminal MS-B, and specific resource location information in common feedback resource PA-C allocated to mobile terminal MS-C.

The mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C perform a feedback operation after successfully receiving the UL Persistent A-MAP IE from the base station.
Specifically, it is preferable to include the following steps (1) to (3).

In step (1), the UL Persistent A-MAP IE is decoded, and the location information in the common feedback resource PA-C of the resource for transmitting the UL Persistent A-MAP IE feedback information is determined.
In the present embodiment, as shown in FIG. 4, the feedback resources of the mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C are resource units LRU1, LRU2, and LRU3 in the PA-C, respectively. Assume that

In step (2), the content of the feedback information is determined.
In the present embodiment, it is assumed that the content of the feedback information is set as a code word sequence defined in advance as a standard default setting.
For example, “1” indicates that the UL Persistent A-MAP IE has been successfully received.
The code word sequence is preferably from a set of orthogonal code word sequence sets or from a set of quasi-orthogonal code word sequence sets.

Alternatively, the feedback information here can be identification information of the mobile terminal.
For example, “001” represents MS-A, “010” represents MS-B, and “011” represents MS-C.
Alternatively, the feedback information here may represent information related to uplink fixed resources allocated to the mobile terminal, for example, initial position information, end position information, resource size information of the fixed resources, or other fixed resources. May be related information.

  In step (3), the mobile terminal MS-A gives feedback information (“1”) with the feedback resource LRU1, the mobile terminal MS-B gives feedback information (“1”) with the feedback resource LRU2, and the mobile terminal MS- C transmits feedback information (“1”) in feedback resource LRU3.

The base station receives feedback information from the mobile terminal.
When the base station acquires feedback information “1” with the LRU 1 of the PA-C assigned to the mobile terminal MS-A, the base station confirms that the mobile terminal MS-A has successfully received the UL Persistent A-MAP IE.
Otherwise, the mobile terminal MS-A successfully re-transmits the UL Persistent A-MAP IE signal to the mobile terminal MS-A, assuming that the UL Persistent A-MAP IE has not been successfully received.
When the base station obtains feedback information “1” with the LRU 2 of the PA-C assigned to the mobile terminal MS-B, the base station confirms that the mobile terminal MS-B has successfully received the UL Persistent A-MAP IE.
Otherwise, assuming that the mobile terminal MS-B has not successfully received the UL Persistent A-MAP IE, it retransmits another UL Persistent A-MAP IE signal to the mobile terminal MS-B.
When the base station obtains feedback information “1” in the LRU 3 of the PA-C assigned to the mobile terminal MS-C, the base station confirms that the mobile terminal MS-C has successfully received the UL Persistent A-MAP IE.
Otherwise, assuming that the mobile terminal MS-C has not successfully received the UL Persistent A-MAP IE, the UL Persistent A-MAP IE signal is retransmitted separately to the mobile terminal MS-C.

If the mobile terminal MS-A has already successfully received the UL Persistent A-MAP IE, the base station releases the LRU1 resource and allocates it to other operations.
Similarly, if the mobile terminal MS-B has already successfully received the UL Persistent A-MAP IE, the base station releases the LRU2 resource and allocates the resource for other operations.
If the mobile terminal MS-C has already successfully received the UL Persistent A-MAP IE, the base station releases the LRU3 resource and allocates it to other operations.

[Example 9]
In the present embodiment, the period of the A-MAP message is one subframe.
One frame includes N subframes. It is assumed that there are N _DL downlink subframes, N _UL uplink subframes, and N _DL + N _UL = N.
In this embodiment, N = 8, N _DL = 5, N _UL = 3, and the base station transmits A− transmitted in subframe 1, subframe 2 and subframe 3 in five downlink subframes. It is assumed that the MAP information includes the relationship control information of uplink subframe 6, uplink subframe 7, and uplink subframe 8, respectively.

As shown in FIG. 5, at the k-th frame, the base station transmits the mobile terminal MS-A and the mobile terminal MS- via the uplink fixed resource allocation signal UL Persistent A-MAP IE of the A-MAP message of the subframe 1. B, the uplink fixed resource PA1 (included in subframe 6 and the allocation period (AP) is 4 frames), PA2 (included in subframe 6 and the allocation period (AP) is 4 PA3 (included in subframe 6 and assigned period (AP) is 4 frames).
As shown in FIG. 5, LRU is one resource allocation unit having a two-dimensional structure having a time domain and a frequency domain including one or more codes and one or more subcarriers.

  The UL Persistent A-MAP IE includes the relationship information on the uplink fixed resources PA1, PA2, and PA3 allocated to the mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C, and the mobile terminal MS-A. , Mobile terminal MS-B, and location information of common feedback resource PA-C assigned to mobile terminal MS-C.

The mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C perform a feedback operation after successfully receiving the UL Persistent A-MAP IE from the base station.
Specifically, it is preferable to include the following steps (1) to (3).

In step (1), position information in the common feedback resource PA-C of the resource for transmitting the UL Persistent A-MAP IE feedback information is determined.
In one embodiment, the resource location information is stored in the mobile terminal and the base station as a standard arrangement.
In the present embodiment, it is assumed that the location of the resource is calculated and acquired by a kind of mapping rule or formula such as, for example, Feedback Location = f (mobile terminal index information).
Among them, Feedback Location is information on the location of the resource that transmits UL Persistent A-MAP IE feedback information.
f represents a certain mapping method or calculation formula.
Obtain location information of feedback resources of each mobile terminal via f.
In the present embodiment, the mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C all have the feedback resources acquired through the Feedback Location = f (mobile terminal index information) as the first LRU. Assume. As shown in FIG. 5, the resource corresponding to the resource PA-C is LRU1.

In step (2), the content of the feedback information is determined.
In the present embodiment, it is assumed that the content of the feedback information is set as a code word sequence defined in advance as a standard default setting.
For example, “1” indicates that the UL Persistent A-MAP IE has been successfully received.
The code word sequence is preferably from a set of orthogonal code word sequence sets or from a set of quasi-orthogonal code word sequence sets.

Alternatively, the feedback information here can be identification information of the mobile terminal.
For example, “001” represents MS-A, “010” represents MS-B, and “011” represents MS-C.
Alternatively, the feedback information here may represent information related to uplink fixed resources allocated to the mobile terminal, for example, initial position information, end position information, resource size information of the fixed resources, or other fixed resources. May be related information.

In step (3), the mobile terminal MS-A uses the feedback resource LRU1 to obtain a code word sequence Bn ₁ obtained by spectrum-spreading feedback information (“1”) with the code word sequence An _1. Send.
Among them, An ₁ is one orthogonal or quasi-orthogonal code word sequence assigned to the mobile terminal MS-A from a set of orthogonal or quasi-orthogonal code word sequence sets.
Similarly, the mobile terminal MS-B transmits the code word sequence Bn ₂ obtained by spectrum-spreading feedback information (“1”) with the code word sequence An _{2 using} the feedback resource LRU1.
The mobile terminal MS-C transmits a code word sequence Bn ₃ obtained by spectrum-spreading feedback information (“1”) with the code word sequence An _{3 using} the feedback resource LRU1.

Among them, the base station knows the code word sequence An ₁ An ₂ An ₃ assigned to each mobile terminal.
The base station receives feedback information from the mobile terminal.
If the base station obtains feedback information “1” by performing reverse spectrum spreading with An ₁ from LRU ₁ of PA-C assigned to mobile terminal MS-A, mobile terminal MS-A succeeds in UL Persistent A -Confirm that the MAP IE has been received.
Otherwise, the mobile terminal MS-A successfully re-transmits the UL Persistent A-MAP IE signal to the mobile terminal MS-A, assuming that the UL Persistent A-MAP IE has not been successfully received.
The base station, when acquiring feedback information "1" through to the reverse spread spectrum An ₂ from LRU1 of PA-C assigned to the mobile terminal MS-B, UL Persistent successful mobile terminal MS-B A- Confirm that MAP IE has been received.
Otherwise, assuming that the mobile terminal MS-B has not successfully received the UL Persistent A-MAP IE, it retransmits another UL Persistent A-MAP IE signal to the mobile terminal MS-B.
The base station, when acquiring feedback information "1" through to inversion spectral spreading in An ₃ from LRU1 of PA-C assigned to the mobile terminal MS-C, the mobile terminal MS-C UL to success Persistent A- Confirm that MAP IE has been received.
Otherwise, assuming that the mobile terminal MS-C has not successfully received the UL Persistent A-MAP IE, the UL Persistent A-MAP IE signal is retransmitted separately to the mobile terminal MS-C.

  When the mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C have already received the UL Persistent A-MAP IE successfully, the base station releases the LRU1 resource and allocates the resource to other operations. .

[Example 10]
In the present embodiment, the period of the A-MAP message is one subframe.
One frame includes N subframes. It is assumed that there are N _DL downlink subframes, N _UL uplink subframes, and N _DL + N _UL = N.
In this embodiment, N = 8, N _DL = 5, N _UL = 3, and the base station transmits A− transmitted in subframe 1, subframe 2 and subframe 3 among the five downlink subframes. Assume that the MAP message includes the relationship control information of uplink subframe 6, uplink subframe 7, and uplink subframe 8, respectively.

As shown in FIG. 5, at the k-th frame, the base station transmits the mobile terminal MS-A and the mobile terminal MS- via the uplink fixed resource allocation signal UL Persistent A-MAP IE of the A-MAP message of the subframe 1. B and the mobile terminal MS-C have uplink fixed resources PA1 (included in subframe 6 and allocation period (AP) is 4 frames), PA2 (included in subframe 6 and allocation period (AP) is 4 frames), PA3 (included in subframe 6 and the allocation period (AP) is 4 frames) is allocated.
As shown in FIG. 5, LRU is one resource allocation unit having a two-dimensional structure having a time domain and a frequency domain including one or more codes and one or more subcarriers.

  The UL Persistent A-MAP IE includes information related to the uplink fixed resources PA1, PA2, and PA3 allocated to the mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C, and the mobile terminal MS- A, the mobile terminal MS-B, and the specific resource location information of the common feedback resource PA-C allocated to the mobile terminal MS-C.

The mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C perform a feedback operation after successfully receiving the UL Persistent A-MAP IE from the base station.
Specifically, it is preferable to include the following steps (1) to (3).

In step (1), the UL Persistent A-MAP IE is decoded, and the position information in the common feedback resource PA-C of the resource for transmitting the UL Persistent A-MAP IE feedback information is determined.
In this embodiment, as shown in FIG. 5, it is assumed that the feedback resource of the mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C is the resource unit LRU1 in the PA-C.

In step (2), the content of the feedback information is determined.
In the present embodiment, it is assumed that the content of the feedback information is set as a code word sequence defined in advance as a standard default setting.
For example, “1” indicates that the UL Persistent A-MAP IE has been successfully received.
The code word sequence is preferably from a set of orthogonal code word sequence sets or from a set of quasi-orthogonal code word sequence sets.

Alternatively, the feedback information here can be identification information of the mobile terminal.
For example, “001” represents MS-A, “010” represents MS-B, and “011” represents MS-C.
Alternatively, the feedback information here may represent information related to uplink fixed resources allocated to the mobile terminal, for example, initial position information, end position information, resource size information of the fixed resources, or other fixed resources. May be related information.

In step (3), the feedback information ("1") transmitted by the mobile terminal MS-A using the feedback resource LRU1 uses the code word sequence Bn1 obtained by performing spectrum spreading with the code word sequence An1. To do.
Among them, An ₁ is one orthogonal or quasi-orthogonal code word sequence assigned to the mobile terminal MS-A from a set of orthogonal or quasi-orthogonal code word sequence sets.
Similarly, the transmitted feedback information mobile terminal MS-B is the feedback resource LRU1 ( "1") uses a code word sequence Bn2 obtained by spread spectrum code word sequence An _2.
Movement feedback information terminal MS-C is transmitted in the feedback resource LRU1 ( "1") uses a code word sequence Bn3 obtained by spread spectrum code word sequence An _3.

Among them, the base station knows the code word sequence An ₁ An ₂ An ₃ assigned to each mobile terminal.
The base station receives feedback information from the mobile terminal.
When the base station obtains feedback information “1” from the LRU ₁ of the PA-C assigned to the mobile terminal MS-A through reverse spectrum spreading with An ₁ , the mobile terminal MS-A succeeds in UL Persistent A -Confirm that the MAP IE has been received.
Otherwise, the mobile terminal MS-A successfully re-transmits the UL Persistent A-MAP IE signal to the mobile terminal MS-A, assuming that the UL Persistent A-MAP IE has not been successfully received.
When the base station obtains feedback information “1” from the LRU 1 of the PA-C assigned to the mobile terminal MS-B by performing reverse spectrum spreading with An ₂ , the mobile terminal MS-B succeeds in UL Persistent A -Confirm that the MAP IE has been received.
Otherwise, assuming that the mobile terminal MS-B has not successfully received the UL Persistent A-MAP IE, it retransmits another UL Persistent A-MAP IE signal to the mobile terminal MS-B.
When the base station obtains feedback information “1” from the LRU 1 of the PA-C assigned to the mobile terminal MS-C through the reverse spectrum spreading with the An ₃ , the mobile terminal MS-C succeeds in the UL Persistent A -Confirm that the MAP IE has been received.
Otherwise, assuming that the mobile terminal MS-C has not successfully received the UL Persistent A-MAP IE, the UL Persistent A-MAP IE signal is retransmitted separately to the mobile terminal MS-C.

  When the mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C have already received the UL Persistent A-MAP IE successfully, the base station releases the LRU1 resource and allocates the resource to other operations. .

What has been described above is a realization process according to an embodiment of the present invention when a fixed resource is allocated.
The present invention is not limited to the above.
Example 11 below describes processing related to allocation of uplink group resources.

The base station transmits an uplink group resource allocation signal including uplink group resource information allocated to the mobile terminals in the mobile terminal group via the downlink channel to the base station.
Uplink group resource allocation information is transmitted to mobile terminals in the mobile terminal group.
The mobile terminal includes one or a plurality of mobile terminals.

A mobile terminal in the mobile terminal group receives an uplink group resource allocation signal from the base station.
Then, feedback information is transmitted using the scheduled resource.
Here, the scheduled resources are resources obtained by mapping or calculation according to uplink group resource location information, all or a part of common feedback resources allocated to one or a plurality of mobile terminal groups, and Preferably, it is one of all or some of the uplink group resources allocated to the mobile terminal from the uplink group resource allocation signal.

Among them, the feedback information here indicates that the mobile terminal has successfully received the uplink group resource allocation signal.
Feedback information is spread spectrum with mobile terminal group identification information, mobile terminal identification information, indication information related to group resources allocated to the mobile terminal, code word sequence and orthogonal or quasi-orthogonal code word sequence The mobile terminal group identification information, the mobile terminal identification information, the instruction information related to the group resource allocated to the mobile terminal, and the code word sequence are included.

[Example 11]
In the present embodiment, the period of the A-MAP message is one subframe.
One frame includes N subframes. It is assumed that there are N _DL downlink subframes, N _UL uplink subframes, and N _DL + N _UL = N.
In this embodiment, N = 8, N _DL = 5, N _UL = 3, and the base station transmits A− transmitted in subframe 1, subframe 2 and subframe 3 among the five downlink subframes. Assume that the MAP message includes the relationship control information of uplink subframe 6, uplink subframe 7, and uplink subframe 8, respectively.

As shown in FIG. 6, at the k-th frame, the base station performs uplink group resource allocation signal UL Persistent A-MAP IE (UL GRA A-MAP IE) of the A-MAP message of subframe 1. An uplink group resource (Group Resource 1) is allocated to the mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C in the mobile terminal group (Group 1).
In subframe 6, the allocation period (AP) is 4 frames.
Among them, GRA1 is assigned to the mobile terminal MS-A, GRA2 is assigned to the mobile terminal MS-B, and GRA3 is assigned to the mobile terminal MS-C.
As shown in FIG. 5, LRU is one resource allocation unit having a two-dimensional structure having a time domain and a frequency domain including one or more codes and one or more subcarriers.

  The UL Persistent A-MAP IE includes the relationship information of the uplink group resources GRA1, GRA2, and GRA3 allocated to the above mobile terminal MS-A, mobile terminal MS-B, and mobile terminal MS-C. .

The mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C perform a feedback operation after successfully receiving the UL GRA A-MAP IE from the base station.
Specifically, it is preferable to include the following steps (1) to (3).

In step (1), the UL GRA A-MAP IE is decoded, and the location information of the resource for transmitting the UL GRA A-MAP IE feedback message is determined.
Suppose that resources for transmitting feedback messages of mobile terminals in the mobile terminal group are located in the first LRU of the allocated group resources.
The information is set according to the standard default.
In this embodiment, as shown in FIG. 6, the resources to which the mobile terminal MS-A, the mobile terminal MS-B, and the mobile terminal MS-C transmit feedback information are LRU1, LRU2, and LRU3, respectively.

In step (2), the content of the feedback information is determined.
In the present embodiment, it is assumed that the content of the feedback information is set as a code word sequence defined in advance as a standard default setting.
For example, “1” indicates that the UL Persistent A-MAP IE has been successfully received.
The code word sequence is preferably from a set of orthogonal code word sequence sets or from a set of quasi-orthogonal code word sequence sets.

Alternatively, the feedback information here may be identification information of the mobile terminal group.
For example, “0001” represents Group1.
Or the identification information of a mobile terminal may be sufficient.
For example, “001” represents MS-A, “010” represents MS-B, and “011” represents MS-C.
Alternatively, the feedback information here is related information on the uplink group resource allocated to the mobile terminal, for example, initial position information, end position information, resource size information of the group resource, or other group group information. It may be possible relation information representing a resource.

  In step (2), the mobile terminal MS-A gives feedback information (“1”) with the feedback resource LRU1, the mobile terminal MS-B gives feedback information (“1”) with the feedback resource LRU2, and the mobile terminal MS- C transmits feedback information (“1”) in feedback resource LRU3.

The base station receives feedback information from the mobile terminal.
When the base station acquires the feedback information “1” with the LRU 1 allocated to the mobile terminal MS-A, the base station confirms that the mobile terminal MS-A has successfully received the UL GRA A-MAP IE.
Otherwise, the mobile terminal MS-A retransmits the UL GRA A-MAP IE signal separately to the mobile terminal MS-A on the assumption that the mobile terminal MS-A has not successfully received the UL GRA A-MAP IE.
The base station confirms that the mobile terminal MS-B has successfully received the UL GRA A-MAP IE when the feedback information has acquired “1” in the LRU 2 assigned to the mobile terminal MS-B.
Otherwise, the UL GRA A-MAP IE signal is retransmitted separately to the mobile terminal MS-B, assuming that the mobile terminal UL GRA A-MAP IE has not been received.
The base station confirms that the mobile terminal MS-C has successfully received the UL GRA A-MAP IE if it has obtained feedback information “1” with the LRU 3 assigned to the mobile terminal MS-C.
Otherwise, the mobile terminal MS-C retransmits the UL GRA A-MAP IE signal separately to the mobile terminal MS-C on the assumption that the mobile terminal MS-C has not successfully received the UL GRA A-MAP IE.

When the mobile terminal MS-A has already successfully received the UL GRA A-MAP IE, the mobile terminal MS-A transmits data information using the LRU1 resource at the time of the next GRA1 resource allocation.
Similarly, when the mobile terminal MS-B has already successfully received the UL GRA A-MAP IE, the mobile terminal MS-B transmits data information using the LRU2 resource when the next GRA2 resource is allocated.
Similarly, when the mobile terminal MS-C has already successfully received the UL GRA A-MAP IE, the mobile terminal MS-C transmits data information using the LRU3 resource at the time of the next GRA3 resource allocation.

In this example, it is assumed that MS-A has already successfully received UL GRA A-MAP IE.
MS-A transmits data information using the LRU1 resource of subframe 6 of the (k + 4) th frame.

In the above embodiment, downlink subframe 1, downlink subframe 2, and downlink subframe 3 use uplink subframe 6, uplink subframe 7, and uplink subframe 8. Instructed to give feedback operation.
For those skilled in the art, other appropriate methods and downlink subframes can be indicated depending on the implementation.
For example, in addition to instructing each uplink subframe in one downlink subframe as described above, it is also possible to instruct multiple uplink subframes in one downlink subframe. is there.
It goes without saying that the present invention is not limited to these.

The above are only preferred embodiments of the present invention and do not limit the present invention.
For those skilled in the art, various modifications and variations can be made to the present invention.
Any modifications, substitutions, improvements, etc. within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims (23)

A method for transmitting an uplink fixed resource allocation signal, comprising:
The base station transmits, to the mobile terminal, an uplink fixed resource allocation signal including feedback operation instruction information for instructing a feedback operation of the mobile terminal when the uplink fixed resource allocation signal is successfully received. ,
The feedback operation instruction information is
Feedback position instruction information, feedback information type, the index information code word sequence, at least feedback position instruction information in the feedback enable instruction information seen including,
The feedback position indication information is
The position in the fixed resource allocated to the mobile terminal of the resource for sending feedback information,
The position in the common feedback resource assigned to the mobile terminal of the resource transmitting the feedback information;
The location in the uplink resource of the resource sending the feedback information, or
The location of the resource to send the feedback back information;
Indicate one of the mapping and calculation methods for obtaining
A method of transmitting an uplink fixed resource allocation signal, characterized by: A resource for transmitting the feedback information is
One physical resource allocation unit, a plurality of physical resource allocation units, a part of resources in the one physical resource allocation unit, and a part of resources in the plurality of physical resource allocation units, Also,
The physical resource allocation unit is
The uplink fixed resource allocation signal transmission method according to claim 1 , wherein the uplink fixed resource allocation signal has a two-dimensional structure having a time domain including one or a plurality of codes and a frequency domain including one or a plurality of subcarriers. . The feedback information is
The method of claim 1 , wherein the mobile terminal indicates that the uplink fixed resource allocation signal has been successfully received. The feedback information type is
The uplink fixed resource assignment signal according to claim 1, comprising one of identification information of the mobile terminal, indication information related to the fixed resource assigned to the mobile terminal, and a code word sequence. How to send The code word sequence is
It is an orthogonal or quasi-orthogonal code word sequence set. The method for transmitting an uplink fixed resource allocation signal according to claim 1. The index information of the code word sequence is
The method for transmitting an uplink fixed resource allocation signal according to claim 1, wherein a code word sequence for performing a spread spectrum operation is indicated for the feedback information. The feedback enable instruction information is
The method for transmitting an uplink fixed resource allocation signal according to claim 1, wherein an instruction is made as to whether transmission of feedback information from the mobile terminal to the base station is required. Mobile terminal
Receiving an uplink fixed resource allocation signal from the base station; and
Perform feedback operation according to feedback operation instruction information included in the uplink fixed resource allocation signal,
The feedback operation instruction information is
Feedback position instruction information, the type of feedback information, see contains at least one feedback position instruction information in the code word sequence index information, the feedback enable instruction information,
The feedback position indication information is
The position in the fixed resource allocated to the mobile terminal of the resource for sending feedback information,
The position in the common feedback resource assigned to the mobile terminal of the resource transmitting the feedback information;
The location in the uplink resource of the resource sending the feedback information, or
The location of the resource to send the feedback information;
Indicate one of the mapping and calculation methods for obtaining
A method for receiving an uplink fixed resource allocation signal. The feedback enable instruction information is
The method for receiving an uplink fixed resource allocation signal according to claim 8 , wherein an instruction is made as to whether transmission of feedback information from the mobile terminal to the base station is required. The feedback information type is
The uplink fixed resource allocation signal according to claim 8 , comprising one of identification information of the mobile terminal, indication information related to the fixed resource allocated to the mobile terminal, and a code word sequence. How to receive. Performing a feedback operation according to the feedback operation instruction information,
Determining whether the mobile terminal transmits feedback information to the base station according to the feedback enable indication information;
The mobile terminal determines the location of the resource that transmitted the feedback information according to the feedback location indication information;
The mobile terminal transmits the feedback information at a fixed location of the resource;
The mobile terminal performs spread spectrum on the feedback information with the code word sequence indicated in the index information of the code word sequence, and the feedback information is spread spectrum at the determined resource position. The method for receiving an uplink fixed resource allocation signal according to claim 8 , comprising at least one of: The feedback information is
The reception method of the uplink fixed resource allocation signal according to claim 11 , wherein the mobile terminal indicates that it has successfully received the uplink fixed resource allocation signal. The base station
When receiving feedback information from the mobile terminal successfully, confirm that the mobile terminal has successfully received the uplink fixed resource allocation signal;
Otherwise, retransmitting the uplink fixed resource allocation signal to the mobile terminal. The method of receiving an uplink fixed resource allocation signal according to claim 11 , comprising: retransmitting the uplink fixed resource allocation signal to the mobile terminal. Mobile terminal
Receiving an uplink fixed resource allocation signal from the base station; and
Resources obtained by mapping or calculating according to location information of uplink fixed resources allocated to the mobile terminal from the uplink fixed resource allocation signal, and all or a part of the common feedback resources allocated to the mobile terminal And transmitting feedback information on a scheduled resource including one of all or some of the uplink fixed resources allocated to the mobile terminal from the uplink fixed resource allocation signal. A method for receiving an uplink fixed resource allocation signal. When the scheduled resource is all or part of the uplink fixed resource allocated to the mobile terminal from the uplink fixed resource allocation signal,
The method of claim 14 , wherein the position of the scheduled resource in the uplink fixed resource is set as a default. The feedback information is
The reception method of the uplink fixed resource allocation signal according to claim 14 , wherein the mobile terminal indicates that it has successfully received the uplink fixed resource allocation signal. The feedback information is
The uplink fixed resource allocation signal according to claim 14 , comprising one of identification information of the mobile terminal, indication information related to a fixed resource allocated to the mobile terminal, and a code word sequence. How to receive. The base station
When receiving feedback information from the mobile terminal successfully, confirm that the mobile terminal has successfully received the uplink fixed resource allocation signal;
Otherwise, retransmitting the uplink fixed resource allocation signal to the mobile terminal. 15. The method of receiving an uplink fixed resource allocation signal according to claim 14 . The mobile terminals in the mobile terminal group
Receiving an uplink group resource allocation signal from the base station; and
Resources obtained by mapping or calculation according to uplink group resource location information, all or some of the common feedback resources allocated to one or more mobile terminal groups, and the uplink group An uplink group group resource allocated to the mobile terminal from a resource allocation signal, a scheduled resource including one of all or some of the resources, and transmitting feedback information. Link group resource allocation signal reception method. The feedback information is
The transmission method of the uplink group resource allocation signal according to claim 19 , wherein the mobile terminal indicates that the uplink group resource allocation signal has been successfully received. The feedback information is
Spread spectrum with identification information of the mobile terminal group, identification information of the mobile terminal, indication information regarding group resources allocated to the mobile terminal, code word sequence and orthogonal or quasi-orthogonal code word sequence The mobile terminal group identification information, the mobile terminal identification information, the instruction information related to the group resource allocated to the mobile terminal, and one of the code word sequence. The method for receiving an uplink group resource allocation signal according to claim 19 . The base station
Receiving feedback information or spread spectrum feedback information from the mobile terminal; and
The uplink of claim 19 , further comprising: distinguishing the feedback information or the spread spectrum feedback in a CDMA scheme when a plurality of mobile terminals perform a feedback operation using the same resource. Group resource allocation signal reception method. The base station
If the feedback information from the mobile terminal is successfully received, confirm that the mobile terminal has successfully received the uplink group resource allocation signal;
The uplink group resource allocation signal reception method according to claim 19 , wherein, if not, the uplink group resource allocation signal or the uplink resource allocation signal is retransmitted to the mobile terminal. .

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