JP7068520B2 - Wireless resource allocation method and equipment - Google Patents

Description

The present invention relates to the field of communication, and more particularly to methods and devices for allocating radio resources.

Global Access System (GSM), Code Division Multiple Access (CDMA2000), Wideband Code Division Multiple Access (WCDMA: Wideband Code Division Access) Current wireless communication systems such as Evolution) usually allocate control channels such as downlink control channels, paging channels, etc. in a relatively fixed manner, with high system overhead, system design and spectrum use. The complexity, power consumption and processing time of the terminal cannot be reduced, the mutual interference of control channels between different cells cannot be avoided, and the terminal needs to perform a lot of blind detection. Will be increased.

In addition, next-generation wireless communication systems (called 5G) are expected to need to support various application methods, such as bandwidth, delay, mobility, coverage, communication rate, reliability, energy efficiency, and number of users. It is necessary to efficiently support the drastic changes in the indicators of. Therefore, the current system cannot meet the needs.

The present invention provides methods and devices for allocating wireless resources and can improve the efficiency, performance and applicability of wireless communication systems.

In the first aspect, a method of allocating radio resources is provided, in which the transmitting side is based on the identifier ID in the current state of the receiving side and according to a preset rule, the current state of the receiving side. To determine the channel time frequency position where the control channel is located,
The transmitting side transmits the data time frequency position indicating information, the size of the occupied time frequency resource of the data, and the modulation coding method of the data to the receiving side via the control channel on the channel time frequency position. To do and
The data time frequency position indicating information is used to indicate the data time frequency position where the data to be transmitted to the receiving side is located.

Combining the first aspect, in one embodiment of the first aspect, the transmitting side is based on the identifier ID in the current state of the receiving side, and the channel time where the control channel for the current state of the receiving side is located. Determining the frequency position includes the transmitting side determining the channel time frequency position according to the preset rule based on the ID and the cell level information in the current state.

Combining the first embodiment and the above embodiments, in another embodiment of the first aspect, the method further comprises the transmitting side transmitting the preset rule to the receiving side. ..

Combining the first embodiment and the above embodiments, in another embodiment of the first embodiment, the transmitting side follows a preset rule based on the ID of the receiving side in the current state. To determine the time frequency position of the receiving side, the transmitting side determines the channel time frequency position by a hash function or a modular function based on the ID of the receiving side in the current state. Including that.

Combining the first embodiment and the above embodiment, in another embodiment of the first aspect, the transmitting side of the receiving side according to a preset rule based on the ID of the receiving side. Determining the channel time frequency position means that the transmitting side determines the time frequency position where the index channel of the receiving side is located according to a preset rule based on the ID of the receiving side. When,
The transmitting side determines the time frequency position of the channel where the control channel of the receiving side is located, based on the position indicated by the index channel.
including.

Coupling the first embodiment and the above embodiments, in another embodiment of the first embodiment, the transmitting side determines that at least two receiving sides have the same channel time frequency position, the code division multiplexing. Information in the control channel corresponding to at least two receiving sides is simultaneously transmitted at the same channel time frequency position by a method, a spatial multiplexing method, or a method of superimposing and then removing interference.

Combining the first embodiment and the above embodiments, in another embodiment of the first aspect, the channel time frequency position comprises a time offset and a frequency offset relative to a time frequency reference point.

Combining the first embodiment and the above embodiments, in another embodiment of the first embodiment, the channel time frequency position is a physical resource unit position or a virtual resource unit position, and the data time frequency position is a physical. Resource unit location or virtual resource unit location.

Combining the first embodiment and the above embodiment, in another embodiment of the first embodiment, the method allows the transmitting side to request the receiving side to perform a hybrid automatic repeat of data via the control channel. Further includes transmitting information about HARQ).

In a second aspect, a method of radio resource allocation is provided, the method of which is:
The receiving side determines the channel time frequency position where the control channel for the current state is located according to a preset rule based on the identifier ID in the current state, and the receiving side determines the channel time frequency. To receive the data time frequency position indication information transmitted from the transmitting side, the size of the occupied time frequency resource of the data, and the modulation coding method of the data via the control channel on the position.
The data time frequency position indicating information is used to indicate the data time frequency position where the data on the receiving side is located.

Combining the second aspect, in one embodiment of the second aspect, the receiver is based on the identifier ID in the current state and according to a preset rule, the channel time where the control channel for the current state is located. Determining the frequency position involves the receiving side determining the channel time frequency position of the control channel based on the ID and cell level information.

Combining the second embodiment and the above embodiment, in another embodiment of the second embodiment, the method is that the receiving side receives the preset rule transmitted from the transmitting side. Including further.

Combining the second embodiment and the above embodiment, in another embodiment of the second embodiment, the receiving side controls the current state according to a preset rule based on the identifier ID in the current state. Determining the channel time frequency position where the channel is located includes the receiver determining the channel time frequency position by a hash function or a modular function based on the ID.

Combining the second embodiment and the above embodiment, in another embodiment of the second embodiment, the receiving side is based on the ID and according to a preset rule, the channel time frequency of the control channel. Determining the position is
Based on the ID, the receiving side determines the time-frequency position where the index channel is located according to a preset rule.
The receiving side determines the channel time frequency position of the control channel based on the position indicated by the index channel.
including.

Combining the second embodiment and the above embodiment, in another embodiment of the second embodiment, the receiving side receives data transmitted from the transmitting side via the control channel on the channel time frequency position. Receiving time-frequency position indication information, the size of the occupied time-frequency resource of the data, and the modulation coding method of the data
When the control channel on the channel time frequency position includes the ID of the receiving side, the receiving side occupies the data time frequency position indicating information and the data based on the information in the control channel. If the size of the time frequency resource and the modulation coding method of the data are determined and the control channel on the channel time frequency position does not include the ID of the receiving side, the receiving side goes to sleep. Entering, if the control channel on the next channel time frequency position contains the ID of the receiver, the receiver is the transmit side based on the information in the control channel on the next channel time frequency position. To determine the data time frequency position indication information transmitted from, the size of the time frequency resource occupied by the data, and the modulation coding method of the data.
including.

Combining the second embodiment and the above embodiment, in another embodiment of the second embodiment, when the control channel on the channel time frequency position includes the ID of the receiving side, the receiving side. Determining the data time frequency position indication information transmitted from the transmitting side, the size of the occupied time frequency resource of the data, and the modulation coding method of the data based on the information in the control channel is the channel time. When the control channel on the frequency position includes the ID of the receiving side and the ID of another receiving side, the receiving side is subjected to a code division multiplexing method, a spatial multiplexing method, or an interference elimination method. Acquiring information on the control channel corresponding to the receiving side includes determining the data time frequency position indication information, the size of the occupied time frequency resource of the data, and the modulation coding method of the data.

Combining the second embodiment and the above embodiment, in another embodiment of the second embodiment, the channel time frequency position is a physical resource unit position or a virtual resource unit position, and the data time frequency position is a physical. Resource unit location or virtual resource unit location.

Combining the second embodiment and the above embodiment, in another embodiment of the second embodiment, when the channel time frequency position is the virtual resource unit position, the receiving side is the virtual resource unit and the physical resource unit. Based on the mapping relationship of, the physical resource unit position where the control channel is located is determined, and when the data time frequency position is the virtual resource unit position, the receiving side maps the virtual resource unit and the physical resource unit. Based on the relationship, the location of the physical resource unit where the data transmitted from the received transmitting side is located is determined.

Combining the second embodiment and the above embodiment, in another embodiment of the second embodiment, the method is a hybrid automatic method in which the receiving side receives data transmitted from the transmitting side via the control channel. It further includes receiving information about a retransmission request (HARQ).

In a third aspect, a radio resource allocation device is provided and configured to implement any of the methods of the first aspect or the possible embodiment of the first aspect described above. Specifically, the device includes a unit for carrying out any of the above first embodiments or possible embodiments of the first embodiment.

In a fourth aspect, a radio resource allocation device is provided and configured to implement either the second aspect or any of the possible embodiments of the second aspect. Specifically, the device comprises a unit for carrying out any of the methods of the second aspect or the possible embodiments of the second aspect.

Based on the above technical proposal, in the method and apparatus for allocating radio resources in the embodiment of the present invention, the transmitting side may use the time frequency of the control channel regarding the current state of the receiving side based on the ID of the current state of the receiving side. The control channel used by the transmitting side and the receiving side can be flexibly assigned according to the needs by fixing the position and indicating the time-frequency position where the data to be transmitted to the receiving side is located via the control channel. This will improve the efficiency, performance and applicability of wireless communication systems.

It is a schematic flowchart of the method of radio resource allocation by the Example of this invention. It is a figure which shows the time-frequency position in the method of radio resource allocation by the Example of this invention. It is a figure which shows the mapping relationship between PRU and VRU by the Example of this invention. It is another schematic flowchart of the method of radio resource allocation by an embodiment of this invention. It is a schematic block diagram of the transmission side of the radio resource allocation according to the embodiment of this invention. It is a schematic block diagram of the receiving side of the radio resource allocation according to the embodiment of this invention.

In order to more clearly explain the embodiments of the present invention, the drawings required in the description of the examples or the prior art are briefly described above, and clearly, the drawings described above are merely the present invention. Other drawings can be obtained based on these drawings on the premise that those skilled in the art will not make any creative effort.

In the following, the drawings of the embodiments of the present invention will be combined to clearly and fully explain the technical proposals of the embodiments of the present invention, and of course, the described examples are examples of a part of the present invention. Not all examples. Based on the examples of the present invention, all other examples obtained by those skilled in the art without any creative effort are within the scope of the present invention.

FIG. 1 shows a schematic flowchart of a method of allocating radio resources according to an embodiment of the present invention, wherein the method 100 may be executed by a transmitting side, and the transmitting side may be a base station, or may be a base station. In the direct communication scene between the terminal and the terminal, the transmitting side is the transmitting side device of the two terminals. As shown in FIG. 1, the method 100 includes S110 to S120.

In S110, the transmitting side determines the channel time frequency position where the control channel related to the current state of the receiving side is located according to a preset rule based on the identifier ID in the current state of the receiving side.

In S120, the transmitting side sends the data time frequency position indicating information, the size of the occupied time frequency resource of the data, and the modulation coding of the data to the receiving side via the control channel on the channel time frequency position. The method is transmitted, and the data time frequency position indicating information is used to indicate the data time frequency position where the data to be transmitted to the receiving side is located.

In the embodiments of the present invention, the wireless communication system includes downlink resource allocation, paging channel, random access response, uplink resource request response (UL_GRANT), hybrid automatic retransmission request response (HARQ_ACK), uplink power control, and the like. For the common downlink control channel, the control channel targeting one or several terminals does not reserve a dedicated time frequency resource, and the sender performs random access after searching the cell, and then performs random access. The current state of the receiving side, such as the system waiting for a random access response and accessing after the completion of random access is in the wireless resource control_idle (RRC_IDLE) state, the service has been started and the wireless resource control_connected (RRC_CONTECTED) state, etc. Further, the sender further receives an identifier ID assigned to the corresponding system in the current state, eg, Random Access-Radio Access-Radio Network Temporary Identity, Temporary Cell-. Control of the channel on the receiving side based on the wireless network temporary identifier (TC-RNTI: Cell-Radio Network Temporary Identity, Cell-Radio Network Temporary Identity), etc. It is possible to determine the time-frequency position, i.e., to find the control channel for the current state based on the time-frequency position, and the transmitting side transmits the data to the receiving side by the control information. The time frequency position is indicated, and the transmitting side indicates the size of the occupied time frequency resource of the data, the data modulation coding method (MCS), and the hybrid automatic repeat request (HARQ) via the control channel. It is possible to further transmit information about, such as redundant version information.

Therefore, in the method of radio resource allocation in the embodiment of the present invention, the transmitting side determines the time frequency position of the control channel regarding the current state of the receiving side based on the ID in the current state of the receiving side, and the control thereof. It indicates the time-frequency position where the data to be transmitted to the receiving side is located via the channel, and the control channel used by the transmitting side and the receiving side can be flexibly assigned according to the needs of the wireless communication system. Improve efficiency, performance and applicability.

In S110, the transmitting side determines the channel time frequency position of the control channel with respect to the receiving side current state based on the identifier ID in the receiving side's current state. Specifically, if the receivers are in different states, the corresponding systems will assign different IDs. For example, when the receiving side is a terminal device, that is, a user device, and the terminal is in random access, the assigned ID may be RA-RNTI or TC-RNTI, and for example, the terminal is a system. If the terminal has already been accessed and is in the RRC_IDLE state, the assigned ID may be C-RNTI. As an option, the receiving side may perform random access after the search, then wait for a random access response, be in the RRC_IDLE state when the system has been accessed, or be in the RRC_CONTECTED state when the service has been started, and use the receiving side. The ID assigned by the system can include RA-RNTI, TC-RNTI, C-RNTI, etc., and the present invention is not limited thereto.

As an option, the sender can combine other information and determine the channel time frequency position based on the receiver's ID, eg, combine the cell level information and the cell level information is evolved. Global Cell Identifier (ECGI: Evolved Cell Global Identifier), Cell Identifier (ECI: eNB ID & Cell ID), System Message-Wireless Network Temporary Identifier (SI-RNTI: System Information-Radio Network Identifier Network Temporary) P-RNTI: Paging-Radio Network Temporary Identity) or the like may be used.

In the embodiments of the present invention, other information such as cell level information may be combined based on the current state ID of the receiving side, and the transmitting side may perform the channel time frequency position of the control channel on the receiving side. The channel time frequency position may be a position relative to a certain time frequency reference point, for example, as shown in FIG. 2, the channel time frequency position is the time frequency reference point. It may be a time offset and a frequency offset relative to, for example, the channel time frequency position may be the A position and the B position in FIG. Specifically, the transmitting side can determine the channel time frequency position relative to a certain time frequency reference point based on a preset rule after determining the ID in the current state of the receiving side, which is an option. As a rule, the preset rule may be a hash function, for example, an MD5 hash function, a modular function, or another function, and is processed for the ID on the receiving side. Or, a merge operation is performed on the ID of the receiving side and the correlated sequence of other cells, whereby the channel time frequency position relative to a certain time frequency reference point is obtained.

Alternatively, as an embodiment, for example, the UE ID of a terminal is 0x36ED (16-bit numerical value), the cell level information is combined, and the ECI of the cell is, for example, 0x 13432A01 of a 28-bit numerical value, which is a preset rule. Determines the time-frequency position by the MD5 hash function, and specifically, performs an exclusive OR (XoR) operation between the UE ID and the cell ECI to obtain the numerical value "0x13431CEC", and the hexadecimal MD5 hash function. The checksum is "692b3803ed63124a96d618bc62b7513", and one method is to take out two hexadecimal numbers at an arbitrarily specified position and calculate them with a modular 10 and a modular 50, for example, the first two places based on a preset rule. It is possible to take "0x69", i.e., the hexadecimal number 105 is calculated in modular 10 to give the time offset t = 5, and the trailing second place "0x13" is taken, i.e. hexadecimal number 19 in modular 50. The calculation gives the frequency offset f = 19, and the time frequency offset corresponding to the control channel of the terminal is (t, f) = (5,19), that is, the channel time frequency position. As an option, the transmitting side may confirm the channel time frequency position based on the receiving side ID according to other preset rules such as other hash functions or modular functions. Not limited to that.

In an embodiment of the present invention, the channel time frequency position is determined based on the ID of the receiving side or by combining other information according to a preset rule of the transmitting side, and the time frequency position is the receiving side. It should be inside the resource assigned to the cell where it is located (in the terminal-to-terminal direct communication scene, the time frequency position should be inside the resource agreed upon by both parties). For example, the system radio frame is divided into subframes having a time length of 10 ms and 10 time lengths of 1 ms, a carrier wave width of 10 MHz, and a width of 50 pieces excluding the protection bands on both sides. When is a 180 KHz radio resource block (RB: source block), the value of the time component t at the time frequency offset is 0-9, the frequency component f is 0-49, and the range of the values of the channel time frequency position is Is (0,0) ≤ (t, f) ≤ (9,49).

In the embodiment of the present invention, the transmitting side determines the channel time frequency position where the control channel is located based on the ID of the receiving side or by combining other information according to a preset rule. The preset rule may be preset on the transmitting side, and the preset rule can be transmitted to the receiving side by a plurality of methods, and the receiving side is preset. Based on the rules, the corresponding time frequency position can be determined, thereby determining the control channel on the receiving side. Specifically, for example, the transmitting side may use a common channel for the base station, for example, a broadcast channel of the base station, or in a direct communication (D2D) situation between terminals, the transmitting side terminal is common. Channels such as the discovery channel of the transmitting terminal may be used, the transmitting side notifies all receiving sides, i.e. terminals, and each terminal receives similar preset rules. do. As an option, the base station notifies the one or several terminals by a dedicated message that is valid only for one or several terminals, such as a random access response message, an RRC connection establishment response message, etc., thereby different. The terminal can determine the time frequency position using different preset rules, or select one or more by the transmitting terminal in a direct communication (D2D) scene between the terminal and the terminal. Depending on the signaling transmitted to the receiving terminal, different receiving sides may be allowed to use different preset rules, and the embodiment of the present invention is not limited to this.

As an option, the sender may change the ID of the receiver, or change the preset rule for calculating the time frequency position by the ID, and notify the receiver by a method such as signaling, or receive. The side may change its own ID and notify the sender by random access, signaling request or other message, and accordingly for the calculation of the time frequency position at the next valid position: Correct.

In the embodiment of the present invention, the transmitting side may combine the ID in the current state of the receiving side or other information, and determines the channel time frequency position where the control channel is located, and as an option. As shown in FIG. 2, the transmitting side has a control channel such as the A position and the B position shown in FIG. 2 based on the time frequency position including the time offset and the frequency offset relative to a certain time frequency reference point. The channel time frequency position where is located can be calculated directly and, as an option, the position of the index channel can be determined directly based on the time offset and frequency offset, i.e., shown in FIG. The A position and the B position are the index channel, and based on the index information of the index channel, it is determined that the position indicated by the index information is the channel time frequency position where the control channel is located, and the embodiment of the present invention is limited thereto. not.

In an embodiment of the invention, the channel time frequency position may be determined directly by ID or by combining other information and, as an option, the control channel position may be determined directly, or the index channel position may be determined first. Alternatively, the index channel or control channel may monopolize the time frequency resource at the location, for example, may be used directly if the time frequency resource at the location is not allocated, and may already be allocated to the data channel. If so, it can be used in a manner of puncturing the data channel and may share time frequency resources with other channels (eg downlink data channels), eg code splitting. The present invention shares time and frequency resources by means of beamforming or a spatial data stream, codeword or data layer, or by a method of performing superposition and then removing interference, and the present invention is not limited thereto.

In S120, the transmitting side provides the receiving side with data time frequency position indicating information, data occupied time frequency resource size, and data modulation coding method via the control channel on the channel time frequency position. The data time frequency position indicating information to be transmitted is used to indicate the data time frequency position where the data to be transmitted to the receiving side is located. As an option, the transmitting side can also transmit information about a hybrid automatic repeat request (HARQ), such as redundant version (RV) information, to the receiving side via the control channel, according to an embodiment of the present invention. Is not limited to that.

As an option, when the sender determines the time frequency position where the control channel or index channel of the receiver is located, if the sender determines that at least two receivers have the same channel time frequency position, then code split multiplexing. Different codewords with different precodings based on, for example, codebooks, by method, or method of spatial multiplexing, such as by beamforming, or by using different spatial data streams or data layers. (Codeword) is used to distinguish terminals at different spatial positions, or the transmitting side directly superimposes signals belonging to different receiving sides and then eliminates interference on the receiving side. The control channel or index channel on the side shares the same channel time frequency position to transmit information, and the embodiment of the present invention is not limited thereto.

In the embodiment of the present invention, the transmitting side determines the channel time frequency position based on the ID of the receiving side according to a preset rule, and transmits data based on the control channel on the channel time frequency position. The location of the data time frequency position is determined, and these two types of time frequency positions may be absolute time frequency positions, and the absolute time frequency position is also referred to as a physical resource unit (PRU). Even if it is a logic resource after excluding time frequency resources that are called and are not involved in allocation (for example, resources for common channels or resources that are not used to avoid interfering with adjacent cells). Often, the logic resource is also referred to as a Virtual Source Unit (VRU). There is a specific mapping relationship between the PRU and the VRU in one or more cells (in the terminal direct communication scene, which is the time frequency resource pool on the transmitting side), and such a mapping relationship is in the cell. It may match on all terminals, may not match, or may partially match. For the matching part in all the terminals in the cell, the transmitting base station (in the direct communication scene between the terminal and the terminal, that is, the transmitting terminal) uses a common channel and uses all the terminals. The receiving side, that is, the terminal can be notified, and as an option, the base station (in the direct communication scene between the terminal and the terminal, that is, the terminal on the transmitting side) does not match in different terminals. The one or several terminals may be notified by a dedicated message (eg, random access response, RRC connection establishment response, etc.) valid only for one or several terminals, and the embodiment of the present invention is not limited thereto. ..

In the embodiment of the present invention, the channel time frequency position indicating the control channel position and the data time frequency position indicating the data position can both include two situations of PRU and VRU, and the base station on the transmitting side can be included. , (Or the terminal on the transmitting side in the direct communication scene of the terminal) notifies the receiving side of which method can be specifically used by a common message or a dedicated message. When the two types of time frequency positions use VRU, the transmitting side can determine the VRU corresponding to the PRU based on the mapping relationship between the PRU and the VRU, and transmits the VRU to the receiving side. On the other hand, the receiving side can estimate and receive a reliable physical time frequency position based on the mapping relationship between the PRU and the VRU.

Specifically, the mapping relationship between PRU and VRU is as shown in FIG. The transmitting base station (or the transmitting terminal in the direct communication scene of the terminal) can show this mapping relationship in a plurality of ways, and is not (or is involved) involved in the mapping in a certain manner, for example. The PRU number is transmitted, and the specific method is as follows.

i, PRU (0,0), (0,3), (0,4) ... The time comes first, and the frequency comes later.

Frequencies such as ii, PRU (0,0), (4,0), (6,0) ... come first, and time comes later.

It is possible to transmit iii, regular and irregular PRUs respectively and encode for regular PRUs (eg, only the first PRU position, frequency interval, time interval, number of regular PRUs, etc.). It is not necessary to transmit and transmit the location of all PRUs), eliminating the transmission overhead, where the regular PRUs here, as shown in FIG. 3, are transmitted according to a fixed time interval. On the contrary, an irregular PRU refers to a PRU whose transmission time interval is not fixed. Further, as an option, the transmission rule or irregular PRU here may be to transmit a usable PRU or may be to transmit an unusable PRU, and specifically, eventually. It may be carried out by determining the transmission amount of the usable PRU and the unusable PRU, and if either the usable PRU or the unusable PRU has a small transmission amount, it may be selected. To transmit.

Two-dimensional encoding is performed on the PRU by a method such as iv, bitmap (bitmap) or compressed bitmap, and the PRU here may be a usable PRU or an unusable PRU. The specific selection method can be selected by determining the transmission amount, and the embodiment of the present invention is not limited to this.

Therefore, in the method of radio resource allocation in the embodiment of the present invention, the transmitting side determines the time frequency position of the control channel regarding the current state of the receiving side based on the ID in the current state of the receiving side, and the control thereof. It indicates the time-frequency position where the data to be transmitted to the receiving side is located via the channel, and the control channel used by the transmitting side and the receiving side can be flexibly assigned according to the needs of the wireless communication system. Improve efficiency, performance and applicability.

The method of allocating radio resources according to the embodiment of the present invention is described in detail above by combining FIGS. 1 to 3 from the transmitting side, and the present invention is described below by combining FIG. 4 from the receiving side. A method of allocating radio resources according to an embodiment will be described.

FIG. 4 shows a schematic flowchart of the radio resource allocation method 200 according to the embodiment of the present invention, and the method 200 may be performed by the receiving side, and the receiving side may be a user device, for example, a UE or the like. It may be. As shown in FIG. 4, the method 200 includes S210 to S220.

In S210, the receiving side determines the channel time frequency position where the control channel related to the current state is located according to a preset rule based on the identifier ID in the current state.

In S220, the receiving side modifies the data time frequency position indicating information transmitted from the transmitting side, the size of the occupied time frequency resource of the data, and the data via the control channel on the channel time frequency position. The coding method is received, and the data time frequency position indicating information is used to indicate the data time frequency position where the data on the receiving side is located.

Therefore, in the method of allocating radio resources in the embodiment of the present invention, the receiving side determines the time frequency position of the control channel related to the current state of the receiving side based on the ID in the current state, and then sets the control channel. Through this, the transmitting side can determine the time-frequency position where the data to be transmitted to the receiving side is located, and the control channels used by the transmitting side and the receiving side can be flexibly assigned according to the needs, and wireless communication can be performed. Improve system efficiency, performance and applicability.

In S210, the receiving side determines the channel time frequency position where the control channel related to the current state is located according to a preset rule based on the identifier ID in the current state. Specifically, the receiving side is in a different state, and the system assigns a different ID accordingly. For example, when the receiving side is a terminal device, that is, a user device, random access is in progress, and the assigned ID of the terminal may be RA-RNTI or TC-RNTI, and the terminal is already in the system. When the terminal has been accessed and is in the RRC_IDLE state, the assigned ID may be C-RNTI. As an option, the receiving side may perform random access after the search, then wait for a random access response, be in the RRC_IDLE state when the system has been accessed, or be in the RRC_CONTECTED state when the service has been started, and use the receiving side. The ID assigned by the system can include RA-RNTI, TC-RNTI, C-RNTI, etc., and the present invention is not limited thereto.

As an option, the receiver can combine other information based on its own ID to determine the channel time frequency position, eg, combine cell level information and specifically the cell level information. May be an evolved global cell identifier ECGI, a cell identifier ECI, SI-RNTI, P-RNTI, or the like.

In the embodiment of the present invention, the receiving side can determine the channel time frequency position of the receiving side control channel based on the ID in the current state or by combining other information, and the channel time frequency. The position may be a position relative to a time frequency reference point, eg, as shown in FIG. 2, the channel time frequency position includes a time offset and a frequency offset relative to the time frequency reference point. For example, the channel time frequency position may be the A position and the B position in FIG. Specifically, the receiving side can determine the channel time frequency position relative to a certain time frequency reference point based on a preset rule after determining the ID in its current state. As an option, the preset rule may be a hash function, for example an MD5 hash function, a modular function, or any other function, with respect to the receiving ID. Processing is performed, or a merge operation is performed on the ID of the receiving side and the correlated sequence of other cells, whereby the channel time frequency position relative to a certain time frequency reference point is obtained.

Optionally, as one embodiment, the channel time frequency position is determined based on the ID of the receiving side, for example, the UE ID of the terminal is 0x36ED (16 bit numerical value), and the preset rule is MD5. The time frequency position can be determined by the hash function, and specifically, the result of multiplying the character string "36ED" by the MD5 hash function checksum is "a7be1684049bb84bda24ae53b90c0348", and one method is arbitrarily specified. It is possible to take out the two hexadecimal numbers at the positions and calculate them with the modular 10 and the modular 50, for example, to take the first 2nd place "0xa7" based on the preset rule, that is, the decimal number. The time offset t = 7 is obtained by calculating 167 with the modular 10, the last second place "0x48" is taken, that is, the hexadecimal number 72 is calculated with the modular 50 to obtain the frequency offset f = 22 of the terminal. It is obtained that the time frequency offset corresponding to the control channel is (t, f) = (7,22), i.e. the channel time frequency position. As an option, the receiver determines the channel time frequency position based on the ID according to other preset rules, such as other hash functions, or modular functions, and the preset rules receive. It may be preset on the side, or the preset rule may be transmitted to the receiving side by the transmitting side, and the present invention is not limited to this.

Specifically, the receiving side may combine information based on the ID or other information according to a preset rule, determine the channel time frequency position where the control channel is located, and determine the preset rule. May be preset on the receiving side, or may transmit the preset rule to the receiving side by the transmitting side by a plurality of methods. Specifically, for example, the transmitting base station can use a common channel, for example, the broadcast channel of the base station, or in a direct communication (D2D) scene between terminals, the transmitting terminal can be used. A common channel, such as the discovery channel of the transmitting terminal, may be used, where the transmitting side notifies all receiving sides, i.e. terminals, and each terminal has similar preset rules. Receive. As an option, the base station notifies the one or several terminals by a dedicated message that is valid only for one or several terminals, such as a random access response message, an RRC connection establishment response message, etc., thereby different. The terminal can determine the time frequency position using different preset rules, or in a direct communication (D2D) scene between the terminal and the terminal, the transmitting terminal may have one or more terminals. The signaling to the selected receiving terminal may be transmitted and different receiving sides may use different preset rules, and the embodiment of the present invention is not limited to this.

As an option, the sender may change the ID of the receiver, or change the preset rule for calculating the time frequency position by the ID, and notify the receiver by a method such as signaling, or receive. The side may change its own ID, notifying the sender by random access, signaling request or other message, and accordingly for the calculation of the time frequency position at the next valid position: Correct.

In an embodiment of the invention, the determined channel time frequency position is assigned to the cell where the receiver is located, based on the ID or by combining other information according to a preset rule on the receiver side. It should be inside the resource (in the context of direct communication between terminals, the time frequency position should be inside the resource agreed upon by both parties). For example, a system radio frame is divided into subframes having a time length of 10 ms and 10 time lengths of 1 ms, a carrier wave width of 10 MHz, and 50 pieces excluding the protection bands on both sides. In the case of a radio resource block (RB: source block) having a width of 180 KHz, the value of the time component t at the time frequency offset is 0-9, the frequency component f is 0-49, and the value of the channel time frequency position is The range is (0,0) ≤ (t, f) ≤ (9,49).

In the embodiment of the present invention, the receiving side determines the channel time frequency position where the control channel is located based on the ID in the current state, and as an option, as shown in FIG. 2, the receiving side has a certain time frequency. The channel time frequency position where the control channel is located, such as the A and B positions shown in FIG. 2, can be directly determined based on the time frequency position including the time offset and the frequency offset relative to the reference point. As an option, it is possible to determine the position of the index channel directly based on the time offset and frequency offset, i.e. the A and B positions shown in FIG. 2 are the index channels and in the index information of the index channels. Based on this, it is determined that the position shown in the index information is the channel time frequency position where the control channel is located, and the embodiment of the present invention is not limited thereto.

In the embodiment of the present invention, the receiving side may determine the channel time frequency position based on the ID in the current state or combine other information, and as an option, a plurality of receiving sides have the same position. If there is a possibility of determination, that is, the time offset and frequency offset determined by multiple receivers are the same, and the locations of the determined control channels are the same, these have confirmed similar results. All of the receiving sides may search for the control channel at the time frequency position, or the control channel indicated by the index channel determines which receiving side the control channel belongs to. Specifically, the ID information of the terminal may be included in the control channel, and the receiving side determines which receiving side the control channel specifically corresponds to based on the ID information. For any one of these receivers whose time frequency position has been determined, if there is no information corresponding to the receiver at the time frequency position, the receiver may go to sleep. After reaching the next time frequency position (eg, the position corresponding to the next radio frame), the receiving side can search again, and the receiving side will find the ID information corresponding to itself on the control channel. Then, it can be determined that the control channel is the control channel corresponding to the receiving side.

As an option, information or other information may be combined based on the receiver ID to determine the channel time frequency position, and the control channel on the time frequency position may include other receiver ID information, i.e., plural. These receivers may share the time frequency resource if the receivers determine similar time frequency positions, and by means of code division multiplexing or spatial multiplexing, for example, beamforming, Or use different spatial data streams or data layers, for example using codebook-based precoding different codewords to distinguish terminals at different spatial locations, or by the sender. In the case of directly superimposing signals belonging to different receiving sides, the receiving side can eliminate interference, and by the above method, the receiving side can determine the control channel corresponding to the receiving side itself. The information in the control channel is acquired.

In S220, the receiving side receives the data time frequency position indicating information transmitted from the transmitting side, the size and data of the occupied time frequency resource of the data, by the control channel corresponding to itself at the determined channel time frequency position. The modulation coding method of the above is received, and the data time frequency position indicating information is used to indicate the data time frequency position where the data on the receiving side is located. As an option, the receiving side can receive the HARQ correlation information of the transmission data block, for example, redundant version (RV) information, etc. via the control channel, and the embodiment of the present invention is not limited thereto.

In an embodiment of the present invention, according to a preset rule on the receiving side, the channel time frequency position is determined based on the ID or by combining other information, and the channel time frequency position is determined based on the control channel on the channel time frequency position. The data time frequency position where the transmission data is located is determined, and these two types of time frequency positions may be absolute time frequency positions, and the absolute time frequency position is also called a physical resource unit PRU and is assigned. It may be a logic resource after removing non-participating time frequency resources (for example, resources for a common channel or resources that are not used for avoiding interference with adjacent cells). Is also called the virtual resource unit VRU. There is a specific mapping relationship between the PRU and the VRU in one or more cells (in the case of direct communication with the terminal, which is the time-frequency resource pool on the transmitting side), and such a mapping relationship is a cell. It may match, may not match, or may partially match in all the terminals in the. For the matching part in all the terminals in the cell, the transmitting base station (in the terminal-to-terminal direct communication scene, that is, the transmitting terminal) uses a common channel and all the receiving sides. That is, the terminal can be notified, and as an option, there are or several base stations (in the terminal-to-terminal direct communication scene, that is, the transmitting terminal) for cases where different terminals do not match. The one or several terminals may be notified by a dedicated message valid only to the terminal, for example, a random access response, an RRC connection establishment response, and the like, and the embodiment of the present invention is not limited thereto.

In the embodiment of the present invention, the channel time frequency position indicating the control channel position and the data time frequency position indicating the data position can both include two situations of PRU and VRU, and the base station on the transmitting side can be included. , (Or the terminal on the transmitting side in the direct communication scene with the terminal) notifies the receiving side of which method can be specifically used by a common message or a dedicated message. When the two types of time frequency positions use VRU, the receiving side can estimate and receive a reliable physical time frequency position based on the mapping relationship between PRU and VRU.

Specifically, the mapping relationship between PRU and VRU is as shown in FIG. The transmitting base station (or the transmitting terminal in the terminal direct communication scene) can show such a mapping relationship in a plurality of ways, and for example, a PRU that does not participate in (or participates in) mapping in a certain manner. The number is transmitted, whereas the receiver can determine a specific time-frequency position based on the PRU number that does not (or does) participate in the received mapping, and specifically, the sender To transmit a PRU number that is not (or is involved in) mapping in a certain manner, the above embodiment on the transmitting side may be referred to, and further description thereof will be omitted here.

In each embodiment of the present invention, the numbers of the above processes do not mean the order before and after the execution, and the order of execution of each process should be determined by its function and its own logic. It does not limit the implementation process of the examples.

Therefore, in the method of radio resource allocation in the embodiment of the present invention, the receiving side determines the time frequency position of the control channel with respect to the receiving side current state based on the ID in the current state, and via the control channel. Therefore, the time frequency position where the data to be transmitted to the transmitting side and the receiving side is located can be determined, and the control channels used by the transmitting side and the receiving side can be flexibly assigned according to the needs of the wireless communication system. Improve efficiency, performance and applicability.

In the above, FIGS. 1 to 4 are combined to explain in detail the method of allocating radio resources according to the embodiment of the present invention. In the following, FIGS. 5 to 6 are combined to form the radio resources according to the embodiment of the present invention. The assignment device will be described.

As shown in FIG. 5, the transmitting side 300 of the radio resource allocation according to the embodiment of the present invention includes the confirmation unit 310 and the transmitting unit 320.

The determination unit 310 is configured to determine the channel time frequency position where the control channel for the current state of the receiver is located, according to a preset rule, based on the identifier ID in the current state of the receiver. To.

The transmission unit 320 is to transmit the data time frequency position indicating information, the size of the occupied time frequency resource of the data, and the modulation coding method of the data to the receiving side by the control channel on the channel time frequency position. The data time frequency position indicating information is used to indicate the data time frequency position where the data to be transmitted to the receiving side is located.

Therefore, as the transmitting side of the radio resource allocation in the embodiment of the present invention, the transmitting side determines the time frequency position of the control channel with respect to the current state of the receiving side based on the ID in the current state of the receiving side, and said. The time frequency position where the data to be transmitted to the receiving side is located is indicated via the control channel, and the control channel used by the transmitting side and the receiving side can be flexibly assigned according to the needs, and the wireless communication system can be used. Improve efficiency, performance and applicability.

As an option, the determination unit 310 is specifically configured to determine the channel time frequency position according to the preset rules based on the ID and cell level information in the current state. ..

As an option, the transmission unit 320 is further configured to transmit the preset rule to the receiver.

As an option, the determination unit 310 is specifically configured to determine the channel time frequency position by a hash function or modular function based on the ID of the receiver in its current state.

As an option, the determination unit 310 determines, specifically, based on the ID of the receiving side, the time frequency position where the index channel of the receiving side is located, according to a preset rule, and determines the time frequency position of the index channel of the receiving side. Is configured to determine the time-frequency position of the channel where the control channel on the receiving side is located, based on the position indicated by.

As an option, the transmitting unit 320 may interfere with the code division multiplexing method, the spatial multiplexing method, or the superimposition if the transmitting side determines that at least two receiving sides have the same channel time frequency position. The elimination scheme is further configured to simultaneously transmit information in the control channel corresponding to the at least two receivers at the same channel time frequency position.

As an option, the channel time frequency position includes a time offset and a frequency offset relative to the time frequency reference point.

As an option, the channel time frequency position is a physical resource unit position or a virtual resource unit position, and the data time frequency position is a physical resource unit position or a virtual resource unit position.

As an option, the transmit unit 320 is further configured to transmit information about a hybrid automatic repeat request (HARQ) of data to the receiver via the control channel.

The transmitting side 300 of the radio resource allocation according to the embodiment of the present invention can correspond to the method 100 in the embodiment of the present invention, and the above and other units of each unit in the transmitting side 300 of the radio resource allocation can be used. The operation or / or function is for realizing the corresponding flow of each method in FIG. 1, and the description thereof is omitted for the sake of brevity.

Therefore, as the transmitting side of the radio resource allocation in the embodiment of the present invention, the transmitting side determines the time frequency position of the control channel regarding the current state of the receiving side based on the ID in the current state of the receiving side, and The control channel used by the transmitting side and the receiving side can be flexibly assigned according to the needs by indicating the time frequency position where the data to be transmitted to the receiving side is located via the control channel, and wireless communication is performed. Improve system efficiency, performance and applicability.

As shown in FIG. 6, the receiving side 400 of the radio resource allocation according to the embodiment of the present invention includes a deterministic unit 410 and a receiving unit 420.

The determination unit 410 is configured to determine the channel time frequency position where the control channel with respect to the current state is located according to a preset rule based on the identifier ID in the current state.

The receiving unit 420 is a data time frequency position indicating information transmitted from the transmitting side via the control channel on the channel time frequency position, the size of the occupied time frequency resource of the data, and the data modulation coding method. Is configured to receive, and the data time frequency position indicating information is used to indicate the data time frequency position where the data on the receiving side is located.

Therefore, the receiving side of the radio resource allocation in the embodiment of the present invention determines the time frequency position of the control channel with respect to the receiving side current state based on the ID in the current state, and via the control channel, The time and frequency position where the data to be transmitted to the transmitting side and the receiving side are located can be determined, and the control channels used by the transmitting side and the receiving side can be flexibly assigned according to the needs, and the efficiency of the wireless communication system can be improved. Improve performance and applicability.

As an option, the determination unit 410 is specifically configured to determine the channel time frequency position of the control channel based on the ID and cell level information.

As an option, the receiving unit 420 is further configured to receive the preset rule transmitted from the transmitting side.

As an option, the determination unit 410 is specifically configured to determine the channel time frequency position by a hash function or a modular function based on the ID.

As an option, the determination unit 410 specifically determines the time-frequency position where the index channel is located according to a preset rule based on the ID, and based on the position indicated by the index channel, the determination unit 410. It is configured to determine the channel time frequency position of the control channel.

As an option, the receiving unit 420 specifically, when the control channel on the channel time frequency position contains the ID on the receiving side, the data time frequency position based on the information in the control channel. The instruction information, the size of the occupied time frequency resource of the data, and the modulation coding method of the data are determined, and if the control channel on the channel time frequency position does not include the ID of the receiving side, sleep. Once the state is entered and the control channel on the next channel time frequency position contains the ID of the receiver, the transmit side is based on the information in the control channel on the next channel time frequency position. It is configured to determine the data time frequency position indication information transmitted from, the size of the occupied time frequency resource of the data, and the modulation coding method of the data.

As an option, the receiving unit 420 can specifically be code-division multiplex, or spatial, if the control channel on the channel time frequency position includes the ID of the receiver and other IDs of the receiver. The information on the control channel corresponding to the receiving side is acquired by the multiplexing method or the interference elimination method, and the data time frequency position indicating information, the size of the occupied time frequency resource of the data, and the modulation code of the data are obtained. It is configured to determine the conversion method.

As an option, the channel time frequency position is a physical resource unit position or a virtual resource unit position, and the data time frequency position is a physical resource unit position or a virtual resource unit position.

As an option, the determination unit 410 specifically, when the channel time frequency position is the virtual resource unit position, the physical resource where the control channel is located based on the mapping relationship between the virtual resource unit and the physical resource unit. When the unit position is determined and the data time frequency position is the virtual resource unit position, the physical resource at the location where the data transmitted from the transmitting side is received based on the mapping relationship between the virtual resource unit and the physical resource unit. It is configured to determine the unit position.

As an option, the receiving unit 420 is further configured to receive information about a hybrid automatic repeat request (HARQ) of data transmitted from the transmitting side via the control channel.

The receiving side 400 of the radio resource allocation according to the embodiment of the present invention corresponds to the method 200 in the embodiment of the present invention, and the above and other operations and / or other operations of each unit in the receiving side 400 of the radio resource allocation. The function is for realizing the corresponding flow of each method in FIG. 4, and further description thereof will be omitted for the sake of brevity.

Therefore, the receiving side of the radio resource allocation in the embodiment of the present invention determines the time frequency position of the control channel with respect to the receiving side current state based on the ID in the current state, and the transmitting side via the control channel. The time frequency position where the data to be transmitted to the receiving side is located can be determined, and the control channels used by the transmitting side and the receiving side can be flexibly assigned according to the needs, and the efficiency, performance and efficiency of the wireless communication system can be determined. Improve applicability.

It can be accomplished by combining the steps of each exemplary unit and algorithm described in the embodiments disclosed herein and using electronic hardware, or the combination of computer software and electronic hardware. Any trader can understand. Whether these functions are implemented in the form of hardware or software depends on the specific application of the technical proposal and design constraints. One of ordinary skill in the art can realize the functions described using different methods for each particular application, but such realization should not be considered beyond the scope of the present invention.

Those skilled in the art can refer to the corresponding flow of the above method embodiments for the specific operation of the systems, devices and units described above, for convenience and brevity of description here. Further explanation will be omitted.

In some of the embodiments provided in the present application, the disclosed systems, devices and methods may be implemented in other ways. For example, the examples of the devices described above are merely exemplary, for example, the division of the units is merely a logical functional division, and in fact, other divisions when realized. It may be, for example, a plurality of units or components may be integrated or aggregated into another system, or some technical features may be omitted or not implemented. Also, the mutual coupling, or direct coupling, or communication connection of each component specified or discussed is connected by indirect coupling or communication of several interfaces, devices, or units. It may be of any form, electrical, mechanical, or other.

The units described above as separate components may or may not be physically separated. The component shown as a unit may or may not be a physical unit. It may be placed in one place or distributed to a plurality of network units. Depending on the actual needs, some or all of the units may be selected to realize the object of the technical proposal of this embodiment.

Further, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may be a single unit, and two or more units may be integrated into one unit. You may.

The function is realized by the method of a software function unit, and when sold or used as an independent product, it may be stored in a computer-readable storage medium. As a result, the part of the technical proposal of the present invention that contributes to the prior art can be realized in the form of a software product, and the computer software product is stored in a storage medium and is stored in a computer device (personal computer, server, or network device). Etc.) include a plurality of instructions for executing the above-mentioned method of all or a part of each embodiment of the present invention. The above storage medium stores various program codes such as a USB memory, a mobile storage medium, a read-only memory (ROM: Read-Only Memory), a random access storage device (RAM: Random Access Memory), a magnetic disk, or a compact disk. Includes possible media.

The above description is merely a specific embodiment of the present invention, and the present invention is not limited to this, and modifications or modifications that can be easily conceived by those skilled in the art within the scope disclosed in the present invention. All replacements should be included within the scope of the present invention. Therefore, the scope of the present invention should be in accordance with the stated claims.

Claims (20)

It is a method of allocating wireless resources.
The sender determines the position of the index channel and
The transmitting side determines the channel time frequency position where the control channel is located with respect to the current state of the receiving side according to the index channel.
The transmitting side transmits the data time frequency position indicating information, the size of the occupied time frequency resource of the data, and the modulation coding method of the data to the receiving side via the control channel on the channel time frequency position. That and
The data time frequency position indicating information is used to indicate the data time frequency position where the data to be transmitted to the receiving side is located.
The method of allocating the radio resource, characterized in that. It is possible for the sender to determine the position of the index channel.
The transmitter comprises locating the index channel according to a time offset and a frequency offset.
The method for allocating radio resources according to claim 1. The time offset and the frequency offset are offsets relative to one time frequency reference point.
The method for allocating radio resources according to claim 2. It is possible that the transmitting side determines the channel time frequency position where the control channel with respect to the current state of the receiving side is located according to the index channel.
The transmitting side includes determining that the position indicated by the index information of the index channel is the channel time frequency position where the control channel is located.
The method for allocating radio resources according to any one of claims 1 to 3, wherein the method is characterized by that. It is possible that the transmitting side determines the channel time frequency position where the control channel with respect to the current state of the receiving side is located according to the index channel.
The transmitting side comprises, in combination with the index channel, determining the channel time frequency position where the control channel for the current state of the receiving side is located, according to the identifier ID in the current state of the receiving side.
The method for allocating radio resources according to any one of claims 1 to 3, wherein the method is characterized by that. It is a method of allocating wireless resources.
The receiving side determines the position of the index channel,
The receiving side determines the channel time frequency position where the control channel with respect to the current state is located according to the index channel.
The receiving side controls the data time frequency position indicating information transmitted by the transmitting side via the control channel on the channel time frequency position, the size of the occupied time frequency resource of the data, and the modulation coding method of the data. To receive and
The data time frequency position indicating information is used to indicate the data time frequency position where the data on the receiving side is located.
The method of allocating the radio resource, characterized in that. The receiving side determines the position of the index channel.
The receiver comprises locating the index channel according to a time offset and a frequency offset.
The method for allocating radio resources according to claim 6. The time offset and the frequency offset are offsets relative to one time frequency reference point.
The method for allocating radio resources according to claim 7. It is possible for the receiver to determine the channel time frequency position of the control channel with respect to the current state of the receiver according to the index channel.
The receiver comprises determining that the position indicated by the index information of the index channel is the channel time frequency position where the control channel is located.
The method for allocating radio resources according to any one of claims 6 to 8, wherein the method is characterized by that. It is possible for the receiver to determine the channel time frequency position of the control channel with respect to the current state of the receiver according to the index channel.
The receiver comprises determining the channel time frequency position where the control channel for the current state of the receiver is located in combination with the index channel according to the identifier ID of the receiver in the current state.
The method for allocating radio resources according to any one of claims 6 to 8, wherein the method is characterized by that. The sender of radio resource allocation
A determination unit configured to determine the position of the index channel and, according to the index channel, determine the channel time frequency position of the control channel with respect to the current state of the receiver.
The data time frequency position indication information, the size of the occupied time frequency resource of the data, and the modulation coding method of the data are configured to be transmitted to the receiver via the control channel on the channel time frequency position. Transmission unit and
The data time frequency position indicating information is used to indicate the data time frequency position where the data to be transmitted to the receiving side is located.
The sender of the radio resource allocation, characterized in that. The determination unit further
It is configured to determine the position of the index channel according to the time offset and the frequency offset.
11. The transmitting side of the radio resource allocation according to claim 11. The time offset and the frequency offset are offsets relative to one time frequency reference point.
The transmitting side of the radio resource allocation according to claim 12. The determination unit further
It is configured to determine that the position indicated by the index information of the index channel is the channel time frequency position where the control channel is located.
The transmitting side of the radio resource allocation according to any one of claims 11 to 13, characterized in that. The determination unit further
It is configured to determine the channel time frequency position where the control channel for the current state of the receiver is located in combination with the index channel according to the identifier ID in the current state of the receiver.
The transmitting side of the radio resource allocation according to any one of claims 11 to 13, characterized in that. The receiver of the radio resource allocation
A determination unit configured to determine the position of the index channel and, according to the index channel, determine the channel time frequency position of the control channel with respect to the current state.
To receive data time frequency position indication information transmitted by the transmitter, the size of the occupied time frequency resource of the data, and the modulation coding scheme of the data via said control channel on said channel time frequency position. The receiving unit to be configured and
The data time frequency position indicating information is used to indicate the data time frequency position where the data on the receiving side is located.
The receiver of the radio resource allocation, characterized in that. The determination unit further
It is configured to determine the position of the index channel according to the time offset and the frequency offset.
16. The receiver of the radio resource allocation according to claim 16. The time offset and the frequency offset are offsets relative to one time frequency reference point.
17. The receiver of the radio resource allocation according to claim 17. The determination unit further
It is configured to determine that the position indicated by the index information of the index channel is the channel time frequency position where the control channel is located.
The receiving side of the radio resource allocation according to any one of claims 16 to 18. The determination unit further
It is configured to determine the channel time frequency position where the control channel for the current state of the receiver is located in combination with the index channel according to the identifier ID in the current state of the receiver.
The receiving side of the radio resource allocation according to any one of claims 16 to 18.

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