CN101635927B - Method and device for transmitting state information and device for obtaining state information - Google Patents

Abstract

The embodiment of the invention discloses a method and device for transmitting status information and a device for acquiring status information. The method includes: using S bits to identify the first state; using each of the M bits to identify whether each of the M resource blocks is currently in the first state; using T bits to identify each The current state of the resource block that is not currently in the first state; the S bits, the M bits and all (MN)×T bits that identify the current state of the resource block that is not currently in the first state Bits are encoded to obtain an encoded code stream for identifying state information, and the encoded code stream is transmitted, wherein the first state is the state with the most current states of the M resource blocks. The application of the present invention can save resources for transmitting coded code streams, and does not need to consume a large amount of storage resources to store the corresponding relationship between coded code streams and state information.

Description

Method and device for transmitting status information and device for acquiring status information

technical field

The present invention relates to the technical field of encoding and decoding in the field of mobile communication, in particular to a method and device for transmitting status information and a device for acquiring status information.

Background technique

In the process of mobile communication, each network device often needs to exchange resource status information with each other, so that the network device can adjust its own resource status according to the resource status of its adjacent network devices, so as to obtain better communication quality.

When exchanging resource status information between network devices, the network device needs to encode its own resource status information first, and then send the encoded code stream to the adjacent network device, and the adjacent network device then encodes the code stream Decoding is performed, so as to obtain the resource status of the local network device.

A typical application of exchanging resource status information between network devices is to eliminate interference from neighboring cells. For example, in the Long Term Evolution (LTE) system, multiple access technologies and scheduling technologies such as Orthogonal Frequency Division Multiple Access (OFDMA) and Single Carrier Frequency Division Multiple Access (SC-FDMA) are widely used, and these technologies can Ensure the orthogonality of user channels in the cell, so that the interference between users in the cell is so small that it can be ignored, so the interference suffered by users in the cell mainly comes from adjacent cells. Especially in the case of co-frequency networking, there will be mutual interference between adjacent cells, which requires inter-cell interference coordination (Inter-Cell Interference Coordination, ICIC).

Inter-cell interference coordination is a scheduling strategy that enhances the user data rate at the cell edge by considering inter-cell interference, that is, the uplink and downlink resources (such as time and/or frequency and/or power, etc.) to control the interference between cells.

At present, using the OI message to control inter-cell interference is a main method of ICIC in the LTE system. Specifically, the interaction of signaling messages such as Overload Indicator (OI) is performed through the X2 interface between adjacent cells, and these signaling messages are used to communicate the resource status of each cell, so as to perform effective resource scheduling and power control.

The method for eliminating the interference of adjacent cells by using the OI signaling message is introduced in detail below, please refer to FIG. 1 for details.

Fig. 1 is the method flow diagram of utilizing OI signaling message to eliminate neighbor cell interference in the prior art, as shown in Fig. 1, this method comprises:

Step 101, the source cell measures the interference situation M _k of each resource block (PRB).

Step 102, judge whether M _k > M _{thresh, k} is true, that is, whether the interference exceeds the threshold value, if yes, execute step 103, if not, return to step 101.

Step 103, triggering the source cell to send an OI signaling message to the neighboring cell.

Step 104, each neighboring cell receives the OI signaling message sent by the source cell, decodes the OI signaling message, and adjusts the resource state according to the decoding result, thereby eliminating or reducing interference to the source cell.

In this step 104, each neighboring cell judges whether the neighboring cell itself is the main interference source of the source cell according to the OI signaling message and other available information, such as the path loss value (RSRP information) obtained by handover measurement, If so, operations such as reducing transmit power and rescheduling resources are performed, so as to eliminate or reduce interference to the source cell.

In the method shown in Figure 1, the intensity of interference suffered by each resource block of the source cell can be divided into three levels: low (L), medium (M), and high (H), and the source cell encodes the level information of the interference of all resource blocks Get the OI signaling message, send the OI signaling message to the neighboring cell, the neighboring cell decodes the OI signaling message, and judge whether the user of the neighboring cell is the main interference source, and if so, adjust the resources of the neighboring cell to reduce Interference to the source cell.

At present, the methods for encoding the interference level information of all resource blocks to obtain the OI signaling message can be divided into two types: individual encoding and joint encoding.

In the separate encoding method, 2 bits are used to encode the interference level information of each resource block to encode the three interference levels, see Table 1 for details:

OI OI code (2bits) L 01 m 10 h 11

Table I

It can be seen that in the separate encoding method, the 2-bit information bit corresponding to each resource block has a state, that is, the 00 state is not used, resulting in a waste of encoding resources. In addition, when the separate encoding method is used, n resource blocks need The total number of information bits is 2n, and the encoded code stream is relatively long.

In the joint coding method, multiple information bits are used to jointly indicate the interference level information of multiple resource blocks (PRBs). For example, 3 bits are used to jointly indicate the interference level of two consecutive PRBs. See Table 2 for details. For the interference level of PRB, please refer to Table 3 for details.

Table II

It can be seen from Table 2 that when 3 bits are used to jointly indicate the interference level of 2 consecutive PRBs, although the number of bits indicated by OI can be reduced, part of the information will be lost, for example, the two cases of LL and LM cannot be distinguished, so part of the performance will be caused loss.

OI OI code (8bits) L L L L L 00000000 ... ... H H H H H H 11111111

Table three

It can be seen from Table 3 that when 8 bits are used to jointly indicate the interference levels of 5 consecutive PRBs, a large amount of storage space is required to store the correspondence between the OI code and the interference level information of each PRB, that is, to store Table 3, the complexity of the system increases, and it is not enough Flexible. In addition, when the number of PRBs increases, the OI code length cannot be further reduced, that is, the number of bits to be transmitted cannot be further reduced.

Currently, how to encode the state information is limited to the above-mentioned individual encoding scheme and joint encoding scheme. Among them, the coding length of the individual coding scheme is longer. Obviously, the longer the coded code stream, the longer the transmission time for transmitting the coded code stream, and the more communication resources are consumed; the joint coding scheme needs to store the code and The mapping relationship between states requires a large amount of storage resources.

Contents of the invention

In view of this, the purpose of the embodiments of the present invention is to provide a method and device for transmitting state information and a device for obtaining state information, so as to save resources for transmitting encoded code streams, and does not need to consume a large amount of storage resources to store encoded code streams and state information corresponding relationship.

In order to achieve the above purpose, the technical solutions of the embodiments of the present invention are specifically implemented as follows:

A method for intercommunicating resource status information between network devices, the method comprising: the network devices applying the method have a total of M resource block status information to be transmitted, the M resource blocks have at most Q states in total, and the M resource blocks have at most Q states. The state with the most occurrences in the current state of the resource block is recorded as the first state, and there are currently N resource blocks in the first state, where M, Q, and N are all natural numbers, and the network device is responsible for the M resource blocks Encode the state information of the M resource blocks to obtain a coded code stream, carry the coded code stream in an OI signaling message, and transmit the state information of the M resource blocks to the receiving end network device by transmitting the OI signaling message, wherein, The encoded code stream is obtained in the following manner:

Using S bits to identify the first state, where S is a natural number not less than log ₂ Q;

Each of the M bits is used to respectively identify whether each of the M resource blocks is currently in the first state, wherein the position of each of the M bits in the code stream is the same as Each resource block corresponds to;

T bits are respectively used to identify the current state of each resource block that is not currently in the first state, and T is a natural number not less than log ₂ (Q-1), wherein the T bits are in the code stream The location corresponds to the resource block that uses the T bits to identify the current state;

Encoding the S bits, the M bits and all (M-N)×T bits that identify the current state of resource blocks that are not currently in the first state to obtain an encoded code stream for identifying state information .

A method for intercommunicating resource status information between network devices, the method comprising: the network devices applying the method have a total of M resource block status information to be transmitted, and the M resource blocks have at most 3 states in total, and the M resource blocks have at most three states. The state with the most occurrences in the current state of the resource block is recorded as the first state, and there are currently N resource blocks in the first state, where M and N are both natural numbers, and the state of the M resource blocks by the network device Encoding the information to obtain a coded code stream, carrying the coded code stream in an OI signaling message, and transmitting the state information of the M resource blocks to the receiving end network device by transmitting the OI signaling message, wherein:

The network device judges the actual number of states that currently appear in the M resource blocks, and when there are three current states of the M resource blocks, use S bits to identify the first state, where S is a natural number not less than 2 ;

Each of the M bits is used to respectively identify whether each of the M resource blocks is currently in the first state, wherein the position of each of the M bits in the code stream is the same as The serial number of each resource block corresponds;

T bits are respectively used to identify the current state of each resource block that is not currently in the first state, and T is a natural number not less than 1, wherein, the position of the T bits in the code stream is the same as that used The T bits identify the sequence number corresponding to the resource block in the current state;

Encoding the S bits, the M bits and all (M-N)×T bits that identify the current state of resource blocks that are not currently in the first state to obtain an encoded code stream for identifying state information ;

When there are 2 types of current states of the M resource blocks, the value of the S bits that is not used to identify the first state is used to identify the current states of all resource blocks. There are 2 types,

Use at least 2 bits to identify a state that does not currently appear, and use each bit of the M bits to respectively identify which of the two current states each resource block in the M resource blocks is in;

Encoding the S bits, the M bits and the at least 2 bits to obtain an encoded code stream for identifying state information.

A device for transmitting state information. A network device using the device to transmit state information needs to transmit state information of M resource blocks, at most Q states appear in the M resource blocks, and in the current state of the M resource blocks The state with the most number of times is recorded as the first state, and there are currently N resource blocks in the first state, wherein M, Q and N are all natural numbers, and the device includes an encoding module and a transmission module;

The encoding module uses S bits to identify the first state, wherein S is a natural number not less than log ₂ Q; uses each of the M bits to identify whether each resource block in the M resource blocks is currently In the first state, where the position of each bit in the code stream in the M bits corresponds to each resource block; use T bits to identify each resource block that is not currently in the first state The current state of T is a natural number not less than log ₂ (Q-1), wherein the position of the T bits in the code stream corresponds to the resource block that uses the T bits to identify the current state ; Encode the S bits, the M bits and all (MN)×T bits that identify the current state of the resource block that is not currently in the first state to obtain an encoding code for identifying state information flow;

The transmission module is configured to transmit the encoded code stream through an OI signaling message, and transmit the state information of the M resource blocks to the receiving end network device.

A device for transmitting status information. A network device using the device to transmit status information needs to transmit the status information of M resource blocks. There are at most three states for the M resource blocks. The current status of the M resource blocks appears The state with the most number of times is recorded as the first state, and there are currently N resource blocks in the first state, where M and N are natural numbers, and the device includes an encoding module and a transmission module;

The encoding module, when there are three current states of the M resource blocks, uses S bits to identify the first state, wherein S is a natural number not less than 2; each bit in the M bits is used Respectively identify whether each resource block in the M resource blocks is currently in the first state, wherein the position of each bit in the M bits in the code stream corresponds to each resource block; T bits are respectively used The bit identifies the current state of each resource block that is not currently in the first state, and T is a natural number not less than 1, wherein the position of the T bits in the code stream is the same as the position of the T bits in the code stream Identify the resource block corresponding to the current state; encode the S bits, the M bits, and all (M-N)×T bits that identify the current state of the resource block that is not currently in the first state to obtain Coded code stream for identifying state information;

When there are 2 types of current states of the M resource blocks, the value of the S bits that is not used to identify the first state is used to identify the current states of all resource blocks. There are 2 types,

Use at least 2 bits to identify a state that does not currently appear, and use each bit of the M bits to respectively identify which of the two current states each resource block in the M resource blocks is in;

Encoding the S bits, the M bits and the at least 2 bits to obtain an encoded stream for identifying state information;

The transmission module is configured to transmit the encoded code stream through an OI signaling message, and transmit the state information of the M resource blocks to the receiving end network device.

A device for acquiring status information, the device for acquiring status information includes a receiving module and an identification module;

The receiving module receives an OI signaling message, and the OI signaling message carries an encoded code stream for identifying state information;

The identification module identifies the first state according to the value of S bits used to identify the first state in the encoded code stream, and identifies the first state according to the position and value of each bit in the M bits. Whether each of the M resource blocks is currently in the first state, where the position of each of the M bits in the code stream corresponds to the sequence number of each resource block, and is used to identify the current The positions and values of the T bits of the current state of the resource block not in the first state identify the current state of the resource block not in the first state, wherein the T bits are in the code The position in the stream corresponds to the sequence number of the resource block that uses the T bits to identify the current state.

A device for identifying status information, the device for acquiring status information includes a receiving module and an identifying module;

The receiving module receives an OI signaling message, and the OI signaling message carries an encoded code stream for identifying state information;

The identification module identifies whether the current states of all resource blocks are 3 or 2 according to the values of the S bits in the encoded code stream, and if they are 3, then according to the values of the S bits The value further identifies the first state, and according to the position and value of each bit in the M bits, it is identified whether each resource block in the M resource blocks is currently in the first state, wherein the M bits The position of each bit in the code stream corresponds to the sequence number of each resource block, according to the position and value of the T bits used to identify the current state of the resource block that is not currently in the first state, Identifying the current state of the resource block that is not in the first state, wherein the position of the T bits in the code stream corresponds to the sequence number of the resource block that uses the T bits to identify the current state ; If there are two types, identify the state that does not currently appear according to the value of the 2 bits used to identify the state that does not currently appear, and identify each resource block in the two current states according to the value used to identify the M resource blocks The value of the M bits in which state identifies the current state of each resource block.

It can be seen that the coding scheme adopted by the present invention for state information is different from both the single coding scheme and the joint coding scheme. The present invention uses bits to identify the most current states of all resource blocks, and additionally uses bits to identify Whether each resource block is currently in the most state, and for resource blocks that are not currently in the most state, additional bits are used to identify their current state. Since it only needs one bit at least to identify whether each resource block is in the most state, and the number of resource blocks that are not currently in the most state is greatly reduced compared to the total number of resource blocks, additional bits are used to identify other The number of bits required for the current state is also correspondingly reduced, so compared with a separate coding scheme, the code length can be reduced, thereby reducing the resources and time required for transmitting state information, and the present invention does not need to store information between codes and states. The mapping relationship can save storage resources.

Description of drawings

FIG. 1 is a flow chart of a method for eliminating interference from neighboring cells by using OI signaling messages in the prior art.

FIG. 2 is a schematic diagram of a first structure of an encoded code stream obtained by encoding state information provided by the present invention.

Fig. 3 is a schematic diagram of the encoding structure of the OI signaling message provided by the present invention.

FIG. 4 is a schematic diagram of interference levels of 24 PRBs.

FIG. 5 is a structural diagram of the first part of the encoded code stream obtained by encoding the OI signaling message.

FIG. 6 is a structural diagram of the second part of the encoded code stream obtained by encoding the OI signaling message.

FIG. 7 is a flowchart of a method for decoding the coded code stream shown in FIG. 1 .

Fig. 8 is a flow chart of the encoding method provided by the present invention when all resource blocks have at most three states.

FIG. 9 is a structure diagram of the code stream used in steps 803-805.

FIG. 10 is a schematic diagram of another interference level of 24 PRBs.

FIG. 11 is a flowchart of a method for decoding the coded stream obtained by using the method shown in FIG. 8 .

Fig. 12 is a simulation effect diagram of the average length of the code stream when there are 24 PRBs and the occurrence probability of the three states is 1/3.

Fig. 13 is a simulation effect diagram of the average length of the code stream when there are 24 PRBs and the occurrence probabilities of the three states are 1/2, 1/4 and 1/4 respectively.

Fig. 14 is a first structural diagram of the device for transmitting status information provided by the present invention.

Fig. 15 is a second structural diagram of the device for transmitting status information provided by the present invention.

Fig. 16 is a first structural diagram of a device for obtaining state information provided by the present invention.

Fig. 17 is a second structural diagram of the device for obtaining state information provided by the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

The present invention encodes the status information, and transmits the status information by transmitting the coded code stream that identifies the status information.

Assuming that there are currently M resource block state information to be transmitted, there are at most Q states in the M resource blocks, and the state with the most occurrences among the current states of the M resource blocks is recorded as the first state, and there are currently N The resource block is in the first state, where M and N are both natural numbers. The method for encoding the state information will be described in detail below.

When encoding the state information, divide the encoded code stream into two parts. The first part includes S bits for identifying the first state and M bits for identifying whether each of the M resource blocks is currently in the first state, where S is a natural number not less than log ₂ Q; Therefore, the code length of the first part is S+M bits, which is a fixed length. The second part uses T bits to identify the current state of each resource block that is not currently in the first state, and T is a natural number not less than log ₂ (Q-1), so the code length of the second part is (MN)× For T bits, the value of N is generally different at different times, so the encoding length of the second part becomes longer.

Fig. 2 is a schematic diagram of the first structure of the encoded code stream obtained by encoding state information provided by the present invention. As shown in Fig. 2, the encoded code stream includes: S bits for identifying the first state, for identifying M M bits of whether each resource block in the resource blocks is currently in the first state, and (M-N)×T bits used to identify the current state of the resource blocks that are not currently in the first state.

Usually, the position of each bit in the code stream of the M bits corresponds to the sequence number of each resource block, and the position of the T bits in the code stream corresponds to the The T bits identify the sequence number correspondence of the resource block in the current state.

Wherein S usually takes the smallest natural number not smaller than log ₂ Q, and T usually takes the smallest natural number not smaller than log ₂ (Q-1).

When the value of Q is 3, that is to say, when there are at most 3 states in all resource blocks, a typical application of the present invention is to perform OI signaling in the process of eliminating or reducing the interference of adjacent cells Message encoding.

Taking OI signaling message encoding as an example below, the present invention will be introduced in detail, see FIG. 3 for details.

FIG. 3 is a schematic diagram of an encoding structure of an OI signaling message provided by the present invention. The OI signaling message carries status information of 24 PRBs.

As shown in Figure 3, the OI signaling message code stream is divided into two parts.

The first part is a fixed length, specifically 26 bits, of which 2 bits are used to identify the first state, and each of the other 24 bits is used to identify whether the state of each PRB in the 24 PRBs is the first state, and the position of each bit in the 24 bits corresponds to the serial number of the PRB, for example, the first bit in the 24 bits identifies the state of the first PRB, and the 23rd bit in the 24 bits Indicates the state of the 23rd PRB.

The length of the second part is variable length, the shortest is 0 bits, and the longest is 16 bits. The specific value of the second part length depends on the number of PRBs currently in the first state. For example, if there are currently 9 PRBs in the first state, and for the remaining 15 PRBs, one bit is used to identify which of the two states each PRB is currently in except the first state, then the second part of The length is (24-9)×1=15 bits, if there are currently 8 PRBs in the first state, the length of the second part is (24-8)×1=16, if the current 24 PRBs are all in the One state, the length of the second part is 0 bits, that is, the second part does not exist.

Wherein, when there are currently 8 PRBs in the first state, since all 24 PRBs have at most 3 states, in fact, each of the 8 PRBs is in the three states respectively. In this case, the first state can be all any of the three states mentioned above.

A practical example is given below to illustrate the method of encoding the OI signaling message.

FIG. 4 is a schematic diagram of interference levels of 24 PRBs.

As shown in FIG. 4 , among the 24 PRBs, 16 PRBs have an interference level of L, 4 PRBs have an interference level of M, and 4 PRBs have an interference level of H, that is, the first state is L.

When encoding the OI signaling message, in the first part of the encoded code stream, 2 bits are used to identify the interference level L, and each of the 24 bits is used to identify whether each PRB is in the first state. Specifically, a bit with a value of 1 among the 24 bits indicates that the PRB corresponding to the bit is in the first state, that is, its interference level is L, and a bit with a value of 0 indicates that the PRB corresponding to the bit is not in the first state. State, that is, its interference level is M or H, see Figure 5 for details.

FIG. 5 is a structural diagram of the first part of the encoded code stream obtained by encoding the OI signaling message.

In the second part of the encoded code stream, one bit is used for each PRB not in the first state to identify whether the PRB is in the M state or in the H state, please refer to FIG. 6 for details.

Figure 6 is a structure diagram of the second part of the encoded code stream obtained by encoding the OI signaling message. When the value of the bit is 1, it indicates that the PRB corresponding to the bit is in the H state, and when the value of the bit is 0, it indicates The PRB corresponding to this bit is in the M state.

Combining Figure 5 and Figure 6, it can be seen that the encoded code stream obtained by encoding the OI signaling message on the 24 PRBs shown in Figure 3 by using the method shown in Figure 1 is 0110111011001111010011110101011010, a total of 34 bits.

Fig. 7 is a flowchart of a method for decoding the coded stream shown in Fig. 2, as shown in Fig. 7, the method includes:

Step 701: Identify the first state according to the values of S bits used to identify the first state in the received encoded code stream.

Step 702: Identify whether each resource block among the M resource blocks is currently in the first state according to the value of each bit among the M bits shown in FIG. 1 .

Step 703: Identify the current state of the resource block not in the first state according to the values of T bits used to identify the current state of the resource block not in the first state.

The following still uses the specific example shown in FIG. 4 as an example to illustrate how to decode the coded stream encoded by the method shown in FIG. 2 .

The encoded code stream obtained by encoding the OI signaling message on the 24 PRBs shown in Figure 4 using the code stream structure shown in Figure 2 is 0110111011001111010011110101011010, and the decoding method includes:

Step 1: Identify that the first state is L according to the value "01" of the 0th to 1st bits.

Step 2: Identify that the 2nd, 6th, 9th, 10th, 15th, 17th, 18th and 23rd PRBs are not in the first state according to the value "101110110011110100111101" of the 2nd to 25th bits, and the rest of the PRBs are in the first state , that is, in the L state.

Step 3: Identify that the 2nd, 6th, 9th, 10th, 15th, 17th, 18th, and 23rd PRBs are in the M state according to the second part of the encoded code stream, that is, the value "01011010" of the 26th to 33rd bits Still in H state. Wherein, the position of each bit in the 26th to 33rd bits corresponds to the sequence number of the PRB that is not in the first state, that is, the earlier the position of the bit is, the smaller the sequence number of the corresponding PRB is, then when the bit A value of 0 indicates the M state, and a bit value of 1 indicates the H state. According to the value "01011010" of the 26th to 33rd bits, it can be identified that the 2nd, 9th, 17th, and 23rd PRBs are in the M state. The 6th, 10th, 15th and 18th PRBs are in the H state.

When the value of Q is 3, that is to say, when there are at most three states in M resource blocks, in addition to using the code stream structure shown in Figure 4 for encoding, other methods can be used to further reduce the encoding code The length of the flow, see Figure 8 for details.

Fig. 8 is a flow chart of the encoding method provided by the present invention when all resource blocks have at most three states in total, which uses different code stream structures for encoding according to the number of states actually present in all resource blocks. As shown in Figure 8, the method includes:

Step 801 , judging whether the number of states actually present in the M resource blocks is two, if yes, execute step 802 , otherwise, execute step 803 .

In step 802, encoding is performed using the code stream structure shown in FIG. 2 , and the flow ends.

In step 803, the values of the S bits that are not used to identify the first state are used to identify the current states of all resource blocks. There are two types in total. Wherein S usually takes a value of 2.

Step 804, using at least 2 bits to identify a state that does not appear currently. Usually, 2 bits are used to identify the status that does not appear currently.

In step 805, each bit of the M bits is used to respectively identify which of the two current states each resource block of the M resource blocks is in.

The order of steps 803-805 is adjustable, as long as the above three steps are all executed.

Fig. 9 is a diagram of the code stream structure used in steps 803-805. As shown in Fig. 9, the code stream structure includes: there are two kinds of S bits used to identify the current state of all resource blocks, and used to identify the current status of all resource blocks. The at least 2 bits of the present state are used to identify the M bits of which of the 2 current states each resource block in the M resource blocks is in.

The following uses a specific example to illustrate the encoding method using steps 803 to 805 when all resource blocks have at most three states and actually two states. Please refer to FIG. 10 for details.

FIG. 10 is a schematic diagram of another interference level of 24 PRBs, in which 16 PRBs are in the L state, 8 PRBs are in the M state, and the H state does not appear.

When the method shown in Figure 8 is used to encode the interference level schematic diagram shown in Figure 10, it is assumed that the values "01", "10" and "11" used to identify the two bits that appear most frequently are used to represent For states L, M, and H, "00" is used to indicate that there are only two states in total, and then 24 bits are used, and each bit corresponds to which state a PRB is currently in among the two states, for example , when the value of the bit in the 24 bits is 1, it means that the PRB corresponding to the bit is in the higher state of the two states, and when the value of the bit is 0, it means that the PRB corresponding to the bit is in the higher state. The PRB is in the lower state of the 2 states, and according to the bit identifying that there are currently only 2 states, the bit used to identify which of the 2 states each PRB is in, and the flag that does not currently appear Each bit is encoded in the order of the bits, and the encoded code stream is 0001000100110000101100001011.

Fig. 11 is a flow chart of a method for decoding the coded stream obtained by the method shown in Fig. 8, as shown in Fig. 10, the method includes:

Step 1101, according to the values of the S bits used to identify the state with the most current occurrences or the number of states that currently appear in the encoded code stream, identify whether the current states of all resource blocks are 3 or 2, if yes If there are 3 types, execute step 1002; if there are 2 types, execute step 1003.

Step 1102, perform decoding according to the method shown in Figure 7, and end this process.

Step 1103: Identify the currently non-appearing state according to the values of the two bits used to identify the currently non-appearing state.

Step 1104: Identify the current state of each resource block according to the value of M bits used to identify which of the two current states each resource block is in among the M resource blocks.

Taking the coded code stream 0001000100110000101100001011 obtained by encoding the interference level schematic diagram shown in FIG. 10 by using the method shown in FIG. 8 as an example, how to decode using the method shown in FIG. 11 is described below.

According to the value "00" of the 0th to 1st bits in the code stream 00010001001100001011, there are 2 kinds of states that currently appear, and according to the value "11" of the 26th to 27th bits, it is recognized that the state that does not currently appear It is in the H state. According to the value "010001001100001011000010" of the 2nd to 25th bits, the 2nd, 6th, 9th, 10th, 15th, 17th, 18th, and 23rd PRBs are currently in the M state, and the rest of the PRBs are currently in the L state. .

The inventors of the present application also simulated the average length of the code stream obtained by encoding using the method shown in FIG. 8 . Please refer to FIGS. 12 and 13 for the simulation effect diagrams.

Figure 12 is a simulation effect diagram of the average length of the code stream when there are 24 PRBs and the occurrence probability of the three states is 1/3, and the average code length at this time is 39.57 bits.

Figure 13 is a simulation effect diagram of the average length of the code stream when there are 24 PRBs and the occurrence probabilities of the three states are 1/2, 1/4, and 1/4 respectively. At this time, the average code length is 37.756 bits.

When a single coding scheme is adopted, 24 PRBs require a total of 48 bits. It can be seen from the simulation results in FIG. 12 and FIG. 13 that the present invention shortens the length of the coded stream, thereby saving resources for transmitting the coded stream. In addition, when the present invention is used for encoding or decoding, neither the encoding end nor the decoding end needs to consume a large amount of storage space to store the corresponding relationship between the encoded code stream and the state information, saving storage resources.

According to the above encoding method or decoding method, embodiments of corresponding encoding devices and decoding devices are given below.

Fig. 14 is a first structural diagram of the device for transmitting status information provided by the present invention.

The network equipment that uses the device shown in Figure 14 to transmit state information has a total of M resource blocks, and there are at most Q states in all resource blocks. The state with the most occurrences in the current state of all resource blocks is recorded as the first state, and there are currently N The resource block is in the first state, where M, Q, and N are all natural numbers. As shown in FIG. 14 , the device includes an encoding module 1401 and a transmission module 1402 .

The encoding module 1401 uses S bits to identify the first state, wherein S is a natural number not less than log ₂ Q; uses each of the M bits to identify whether each resource block in the M resource blocks is currently in The first state; T bits are used to identify the current state of each resource block that is not currently in the first state, and T is a natural number not less than log ₂ (Q-1); the S bits, the M bits and all (MN)×T bits that identify the current state of resource blocks that are not currently in the first state are encoded to obtain an encoded code stream for identifying state information.

The transmission module 1402 is configured to transmit the encoded code stream obtained by the encoding module 1401 .

Fig. 15 is a second structural diagram of the device for transmitting status information provided by the present invention.

The network equipment that uses the device shown in Figure 15 to transmit state information has a total of M resource blocks, and there are at most 3 states in all resource blocks. The resource block is in the first state, where M and N are both natural numbers, and the feature is that the device shown in FIG. 15 includes an encoding module 1501 and a transmission module 1502 .

The encoding module 1501, when there are three current states of all resource blocks, uses S bits to identify the first state, where S is a natural number not less than 2; each bit in the M bits is used to identify M Whether each resource block in resource blocks is currently in the first state; T bits are used to identify the current state of each resource block that is not currently in the first state, and T is a natural number not less than 1; the S The bits, the M bits and all (M-N)×T bits that identify the current state of the resource block that is not currently in the first state are encoded to obtain an encoded code stream for identifying state information.

The encoding module 1501, when there are 2 current states of all resource blocks, uses the values of the S bits that are not used to identify the first state to identify the current states of all resource blocks. Type, using at least 2 bits to identify a state that is not currently present, and using each bit in the M bits to identify which of the two current states each resource block in the M resource blocks is in; The S bits, the M bits and the at least 2 bits are encoded to obtain an encoded stream for identifying state information.

The transmission module 1502 is configured to transmit the encoded code stream obtained by the encoding module 1501 .

Fig. 16 is a first structural diagram of a device for obtaining state information provided by the present invention.

The system using the device shown in FIG. 16 to obtain network information uses the device shown in FIG. 14 to transmit status information. The device shown in FIG. 16 includes a receiving module 1601 and an identification module 1602 .

The receiving module 1601 is configured to receive an encoded code stream used to identify state information.

The identification module 1602 identifies the first state according to the value of S bits used to identify the first state in the coded code stream, and identifies M resource blocks according to the value of each bit in the M bits Whether each resource block in the resource block is currently in the first state, and the current state of the resource block that is not in the first state is identified according to the value of the T bits used to identify the current state of the resource block that is not in the first state. state.

Fig. 17 is a second structural diagram of the device for obtaining state information provided by the present invention.

The system using the device shown in FIG. 17 to acquire network information uses the device shown in FIG. 15 to transmit status information. The device shown in FIG. 17 includes a receiving module 1701 and an identification module 1702 .

The receiving module 1701 is configured to receive an encoded code stream used to identify state information.

The identification module 1702 identifies whether the current states of all resource blocks are 3 or 2 according to the values of the S bits in the encoded code stream, and if there are 3, then according to the values of the S bits Further identifying the first state, identifying whether each of the M resource blocks is currently in the first state according to the value of each bit in the M bits, and identifying whether each resource block is currently in the first state according to the value used to identify that it is not currently in the first state The value of the T bits of the current state of the resource block identifies the current state of the resource block that is not in the first state; if there are two types, then according to the 2 bits used to identify the state that does not currently appear The value of the value identifies the state that does not currently appear, and the current state of each resource block is identified according to the value of the M bits used to identify which of the two current states each of the M resource blocks is in. .

The above is only a preferred embodiment of the present invention, and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall include Within the protection scope of the present invention.

Claims (12)

1. the method for an intercommunication resource state information between the network equipment is characterized in that, this method comprises:

The state information of using total M the Resource Block of the network equipment of this method needs to transmit, Q kind state appears altogether in this M Resource Block at the most, the maximum state of occurrence number is designated as first state in the current state of this M Resource Block; The current N of a having Resource Block is in first state, and M wherein, Q and N all are natural numbers;

The said network equipment is encoded to the state information of a said M Resource Block and is obtained encoding code stream; This encoding code stream is carried in the load indication OI signaling message; Give the receiving terminal network equipment through transmitting said OI signaling message with the status information transmission of a said M Resource Block; Wherein, said encoding code stream obtains through following mode:

Adopt S bit to identify first state, wherein, S is not less than l0g ₂The natural number of Q;

Adopt each bit in M the bit to identify current first state that whether is in of each Resource Block in M the Resource Block respectively, wherein, each bit residing position in said code stream in M bit is corresponding with each Resource Block;

Adopt T each current current state that is not in the Resource Block of first state of bit sign respectively, T is not less than log ₂(Q-1) natural number, wherein, a said T bit residing position in said code stream is corresponding with the Resource Block that adopts this T bit sign current state;

(M-N) * T bit of the current state of the current Resource Block that is not in first state of a said S bit, a said M bit and all signs encoded obtain being used for the encoding code stream of identification-state information.

2. the method for claim 1; It is characterized in that, (M-N) * T bit of the current state of the current Resource Block that is not in first state of a said S bit, a said M bit and all signs encoding code stream that obtains being used for identification-state information of encoding is comprised:

Each bit of sequence arrangement according to a said S bit, a said M bit and said (M-N) * T bit obtains encoding code stream.

3. according to claim 1 or claim 2 method is characterized in that S is not less than log ₂The smallest natural number of Q, T is not less than l0g ₂(Q-1) smallest natural number.

4. method as claimed in claim 3 is characterized in that the value of Q is 3.

5. like claim 1, the described method of 2 or 4 arbitrary claims, it is characterized in that this method further comprises:

Receiving terminal receives the encoding code stream that is used for identification-state information; Value according to S the bit that is used to first state that identifies in this encoding code stream identifies first state; According to each bit bit position and the value in the said M bit; Identify current first state that whether is in of each Resource Block in M the Resource Block; T bit bit position and value according to the current state that is used to identify the current Resource Block that is not in first state identify the said current state that is not in the Resource Block of first state.

6. the method for an intercommunication resource state information between the network equipment is characterized in that, this method comprises:

The state information of using total M the Resource Block of the network equipment of this method needs transmission, this M Resource Block to occur three state at the most altogether; The maximum state of occurrence number is designated as first state in the current state of this M Resource Block; The current N of a having Resource Block is in first state; M wherein and N all are natural numbers

The said network equipment is encoded to the state information of a said M Resource Block and is obtained encoding code stream; This encoding code stream is carried in the load indication OI signaling message; Give the receiving terminal network equipment through transmitting said OI signaling message with the status information transmission of a said M Resource Block, wherein:

The said network equipment is judged M the current actual status number that occurs of Resource Block, when the current state one of this M Resource Block has 3 kinds, adopts S bit to identify first state, and wherein, S is not less than 2 natural number;

Adopt each bit in M the bit to identify current first state that whether is in of each Resource Block in M the Resource Block respectively, wherein, each bit residing position in said code stream in M bit is corresponding with the sequence number of each Resource Block;

Adopt T each current current state that is not in the Resource Block of first state of bit sign respectively; T is not less than 1 natural number; Wherein, a said T bit residing position in said code stream is corresponding with the sequence number of the Resource Block that adopts this T bit sign current state;

(M-N) * T bit of the current state of the current Resource Block that is not in first state of a said S bit, a said M bit and all signs encoded obtain being used for the encoding code stream of identification-state information;

When the current state one of this M Resource Block had 2 kinds, the current state one that the value that is not used to first state that identifies in the value of a said S bit is used to identify all Resource Block had 2 kinds,

Adopt at least 2 current states that do not have appearance of bit sign, each Resource Block that adopts each bit in M the bit to identify respectively in M the Resource Block is in which kind of state in 2 kinds of current states;

A said S bit, a said M bit and said at least 2 bits are encoded obtain being used for the encoding code stream of identification-state information.

7. method as claimed in claim 6 is characterized in that the value of S is 2, and the value of T is 1.

8. like claim 6 or 7 described methods, it is characterized in that this method further comprises:

Receiving terminal receives the encoding code stream be used for identification-state information, and the current state that identifies all Resource Block according to the value of said S bit in this encoding code stream is 3 kinds or 2 kinds,

If 3 kinds; Then the value according to a said S bit further identifies first state; According to each bit bit position and the value in the said M bit; Identify current first state that whether is in of each Resource Block in M the Resource Block, T bit bit position and value according to the current state that is used to identify the current Resource Block that is not in first state identify the said current state that is not in the Resource Block of first state;

If 2 kinds; Then the value according to 2 bits that are used to identify the current state that not have to occur identifies the current state that does not have appearance, and the value that is in M bit of which kind of state in 2 kinds of current states according to each Resource Block that is used for identifying M Resource Block identifies the current state of each Resource Block.

9. the device of a transmitting state information; It is characterized in that; The state information of using total M the Resource Block of the network equipment of this device transmitting state information needs to transmit, Q kind state appears altogether in this M Resource Block at the most, the maximum state of occurrence number is designated as first state in the current state of this M Resource Block; The current N of a having Resource Block is in first state, and M wherein, Q and N all are natural numbers, and this device comprises coding module and transport module;

Said coding module adopts S bit to identify first state, and wherein, S is not less than log ₂The natural number of Q; Adopt each bit in M the bit to identify current first state that whether is in of each Resource Block in M the Resource Block respectively, wherein, each bit residing position in said code stream in M bit is corresponding with each Resource Block; Adopt T each current current state that is not in the Resource Block of first state of bit sign respectively, T is not less than log ₂(Q-1) natural number, wherein, a said T bit residing position in said code stream is corresponding with the Resource Block that adopts this T bit sign current state; (M-N) * T bit of the current state of the current Resource Block that is not in first state of a said S bit, a said M bit and all signs encoded obtain being used for the encoding code stream of identification-state information;

Said transport module is used for transmitting said encoding code stream through load indication OI signaling message, transmits the state information of a said M Resource Block to the receiving terminal network equipment.

10. the device of a transmitting state information; It is characterized in that; The state information of using total M the Resource Block of the network equipment of this device transmitting state information needs transmission, this M Resource Block to occur three state at the most altogether, and the maximum state of occurrence number is designated as first state in the current state of this M Resource Block, and the current N of a having Resource Block is in first state; M wherein and N all are natural numbers, and this device comprises coding module and transport module;

Said coding module when the current state one of this M Resource Block has 3 kinds, adopts S bit to identify first state, and wherein, S is not less than 2 natural number; Adopt each bit in M the bit to identify current first state that whether is in of each Resource Block in M the Resource Block respectively, wherein, each bit residing position in said code stream in M bit is corresponding with each Resource Block; Adopt T each current current state that is not in the Resource Block of first state of bit sign respectively; T is not less than 1 natural number; Wherein, a said T bit residing position in said code stream is corresponding with the Resource Block that adopts this T bit sign current state; (M-N) * T bit of the current state of the current Resource Block that is not in first state of a said S bit, a said M bit and all signs encoded obtain being used for the encoding code stream of identification-state information;

When the current state one of this M Resource Block had 2 kinds, the current state one that the value that is not used to first state that identifies in the value of a said S bit is used to identify all Resource Block had 2 kinds,

Adopt at least 2 current states that do not have appearance of bit sign, each Resource Block that adopts each bit in M the bit to identify respectively in M the Resource Block is in which kind of state in 2 kinds of current states;

A said S bit, a said M bit and said at least 2 bits are encoded obtain being used for the encoding code stream of identification-state information;

Said transport module is used for transmitting said encoding code stream through load indication OI signaling message, transmits the state information of a said M Resource Block to the receiving terminal network equipment.

11. a device that obtains state information is used the system that this device obtains the network information and is adopted device transmitting state information as claimed in claim 9, it is characterized in that this device that obtains state information comprises receiver module and identification module;

Said receiver module receives load indication OI signaling message, and this OI signaling message carries the encoding code stream that is used for identification-state information;

Said identification module; Value according to S the bit that is used to first state that identifies in the encoding code stream identifies first state; According to each bit bit position and the value in the said M bit; Identify current first state that whether is in of each Resource Block in M the Resource Block, wherein, each bit residing position in said code stream in M bit is corresponding with the sequence number of each Resource Block; T bit bit position and value according to the current state that is used to identify the current Resource Block that is not in first state; Identify the said current state that is not in the Resource Block of first state, wherein, a said T bit residing position in said code stream is corresponding with the sequence number of the Resource Block that adopts this T bit sign current state.

12. a device that obtains state information is used the system that this device obtains the network information and is adopted device transmitting state information as claimed in claim 10, it is characterized in that this device that obtains state information comprises receiver module and identification module;

Said receiver module receives load indication OI signaling message, and this OI signaling message carries the encoding code stream that is used for identification-state information;

Said identification module; The current state that identifies all Resource Block according to the value of said S bit in the encoding code stream is 3 kinds or 2 kinds; If 3 kinds; Then the value according to a said S bit further identifies first state, according to each bit bit position and the value in the said M bit, identifies current first state that whether is in of each Resource Block in M the Resource Block; Wherein, Each bit residing position in said code stream in M bit is corresponding with the sequence number of each Resource Block, and T bit bit position and value according to the current state that is used to identify the current Resource Block that is not in first state identify the said current state that is not in the Resource Block of first state; Wherein, a said T bit residing position in said code stream is corresponding with the sequence number of the Resource Block that adopts this T bit sign current state; If 2 kinds; Then the value according to 2 bits that are used to identify the current state that not have to occur identifies the current state that does not have appearance, and the value that is in M bit of which kind of state in 2 kinds of current states according to each Resource Block that is used for identifying M Resource Block identifies the current state of each Resource Block.

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