WO2016201627A1 - Procédé d'attribution de ressources, dispositif terminal de transmission et dispositif terminal de réception - Google Patents

Procédé d'attribution de ressources, dispositif terminal de transmission et dispositif terminal de réception Download PDF

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Publication number
WO2016201627A1
WO2016201627A1 PCT/CN2015/081588 CN2015081588W WO2016201627A1 WO 2016201627 A1 WO2016201627 A1 WO 2016201627A1 CN 2015081588 W CN2015081588 W CN 2015081588W WO 2016201627 A1 WO2016201627 A1 WO 2016201627A1
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information
time
site
indication information
time period
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PCT/CN2015/081588
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English (en)
Chinese (zh)
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淦明
林梅露
刘乐
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华为技术有限公司
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Priority to PCT/CN2015/081588 priority Critical patent/WO2016201627A1/fr
Priority to CN201580047945.1A priority patent/CN106688261B/zh
Publication of WO2016201627A1 publication Critical patent/WO2016201627A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning

Definitions

  • Embodiments of the present invention relate to the field of wireless communication technologies, and more specifically, to a method for resource allocation, a source device, and a sink device.
  • WLAN Wireless Local Area Network
  • the partitioning of the resource blocks in the next-generation standard 802.11ax may be: the partitioning of the resource blocks may be 1*26, 2*26, 4*26 or 242, where 1*26 represents 26 sub-
  • the carrier is a resource block
  • 2*26 indicates that 52 subcarriers are one resource block
  • 4*26 indicates that 106 subcarriers are one resource block
  • 242 indicates that 242 subcarriers are one resource block.
  • a 20MHz bandwidth block diagram can be composed of the above several resource blocks.
  • the receiving device can obtain the frequency domain resource allocation of the current transmission. Taking the 20MHz bandwidth as an example, the station can know the current frequency domain resource allocation at 20MHz. Then, it is learned from the resource indication information that it is scheduled and is the first scheduled station, and then the data can be received or transmitted at the corresponding location that is scheduled.
  • the corresponding location includes two dimensions of frequency and time.
  • the resource blocks are frequency-division multiplexed, and only the frequency dimension is indicated, and the resource block is not divided by time division multiplexing. Therefore, how to allocate resources when dividing resource blocks by time division multiplexing is a problem that needs to be solved at present.
  • the embodiment of the invention provides a resource allocation method, a sender device and a receiver device, which are capable of resource allocation when time division multiplexing is used to divide resource blocks.
  • a first aspect provides a method for resource allocation, including: determining, by a source device, resource indication information for performing resource allocation in a time domain and a frequency domain, where the resource indication information includes time indication information and is used in a frequency domain.
  • First indication information for performing resource allocation wherein the time indication information
  • the number of time segments including resource allocation in the time domain or the time indication information includes a number of time segments and a time segment length for resource allocation in the time domain; and the resource indication information is sent to the receiving device to facilitate the receiving
  • the end device determines the allocated time-frequency resource according to the resource indication information.
  • the first indication information includes site identifier information, where the resource indicator information further includes site identifier duplicate information, where the site identifier duplicate information is used to indicate Whether the station identification information allocated by the first frequency band in the current time period is the same as the station identification information allocated by the first frequency band in the adjacent time period.
  • the site identifier repetition information is specifically used to indicate the site identifier information that is allocated by the first frequency band in the current time period. Whether the site identification information allocated by the first frequency band is the same as the site identification information of the first frequency band in the previous time period, and the site identification duplicate information set does not include the site identification duplicate information corresponding to the site identification information allocated by all the frequency bands in the first time period.
  • the site identifier repetition information is specifically used to indicate the site identifier information that is allocated by the first frequency band in the current time period. Whether the station identification information allocated by the first frequency band is the same as the station identification information corresponding to the first frequency band in the last time period, and the site identification duplicate information set does not include the site identification duplicate information corresponding to the site identification information allocated by all the frequency bands in the last time period.
  • the site identifier duplicate information set does not include the site allocated by the first time-frequency resource block a site identification duplicate information corresponding to the identifier information, where the frequency band of the first time-frequency resource block is different in the time zone in which the first time-frequency resource block is located and the frequency band in the previous time segment is different, and the allocated site identifier information is different, or The frequency band corresponding to the first time-frequency resource block is different in the time zone in which the first time-frequency resource block is located and the frequency band in the subsequent time period, and the allocated site identification information is different.
  • the site identification duplicate information is the first site identifier
  • the first site corresponding to the information identifies the duplicate information
  • the first site identifier duplicate information is 1-bit bit information and is appended to the first site identifier information.
  • the site identification duplicate information is the first time period
  • the second site identifier duplicate information corresponding to the allocated site identifier information, the second site identifier duplicate information being at least one bit of information.
  • the first indication information includes frequency domain resource allocation indication information for indicating frequency band division
  • the second station The identification duplicate information is appended to the frequency domain resource allocation indication information.
  • the first indication information, The station identification duplicate information and the time indication information are located in the efficient signaling field B of the physical layer preamble or in the frame body of the medium access control layer.
  • the first indication information includes site parameter information, where the site parameter information includes a time segment index, where the time segment index is used to indicate site identifier information allocation. period.
  • the resource is performed in the time domain.
  • the allocated time period is equal, and the time indication information includes only the number of time segments for resource allocation in the time domain, wherein the length of each time segment is implicitly indicated according to the number of time segments.
  • the time indication information is further A broadcast frame indication information is included, the broadcast frame indication information being used to indicate a time period during which the broadcast frame is transmitted.
  • a second aspect provides a method for resource allocation, including: receiving, by a receiving device, resource indication information for performing resource allocation in a time domain and a frequency domain, where the resource indication information includes time indication information and The first indication information of the resource allocation in the frequency domain, where the time indication information includes a number of time segments for resource allocation in the time domain or the time indication information includes a time period for resource allocation in the time domain. The number and the length of the time period; determining the allocated time-frequency resource according to the resource indication information.
  • the first indication information includes site identifier information, where the resource indicator information further includes site identifier duplicate information, where the site identifier duplicate information is used to indicate Whether the station identification information allocated by the first frequency band in the current time period is the same as the station identification information allocated by the first frequency band in the adjacent time period.
  • the site identifier duplicate information is the first site identifier duplicate information corresponding to the first site identifier information, where the first The station identification duplicate information is 1-bit information and is attached to the first site identifier. After the information.
  • the site identifier duplicate information is a duplicate of the second site identifier corresponding to the site identifier information that is allocated by the first time segment Information
  • the second site identification duplicate information is at least one bit of information.
  • the first indication information includes frequency domain resource allocation indication information for indicating frequency band division
  • the second station The identification duplicate information is appended to the frequency domain resource allocation indication information.
  • the first indication information, The station identification duplicate information and the time indication information are located in the efficient signaling field B of the physical layer preamble or in the frame body of the medium access control layer.
  • the first indication information includes site parameter information, where the site parameter information includes a time segment index, where the time segment index is used to indicate that the site identification information is allocated. period.
  • the resource is performed in the time domain
  • the allocated time period is equal, and the time indication information includes only the number of time segments for resource allocation in the time domain, wherein the length of each time segment is implicitly indicated according to the number of time segments.
  • the time indication information further includes The broadcast frame indication information is used to indicate a time period during which the broadcast frame is transmitted.
  • a third aspect of the present invention provides a transmitting device, including: a determining unit, resource indication information for resource allocation in a time domain and a frequency domain, where the resource indication information includes time indication information and is used for performing in a frequency domain. a first indication information of the resource allocation, where the time indication information includes a number of time segments for performing resource allocation in the time domain or the time indication information includes a number of time segments and a time segment length for performing resource allocation in the time domain; And a sending unit, configured to send the resource indication information to the receiving end device, so that the receiving end device determines the allocated time-frequency resource according to the resource indication information.
  • the first indication information includes site identifier information, where the resource indication information further includes site identifier duplicate information, where The site identifier repetition information is used to indicate whether the site identifier information allocated by the first frequency band in the current time period is the same as the site identifier information allocated by the first frequency band in the adjacent time period.
  • the site identifier duplicate information is specifically used to indicate the site identifier information that is allocated by the first frequency band in the current time period. Whether the site identification information allocated by the first frequency band is the same as the site identification information of the first frequency band in the previous time period, and the site identification duplicate information set does not include the site identification duplicate information corresponding to the site identification information allocated by all the frequency bands in the first time period.
  • the site identifier repetition information is specifically used to indicate the site identifier information that is allocated by the first frequency band in the current time period. Whether the station identification information allocated by the first frequency band is the same as the station identification information corresponding to the first frequency band in the last time period, and the site identification duplicate information set does not include the site identification duplicate information corresponding to the site identification information allocated by all the frequency bands in the last time period.
  • the site identifier duplicate information set does not include the site allocated by the first time-frequency resource block a site identification duplicate information corresponding to the identifier information, where the frequency band of the first time-frequency resource block is different in the time zone in which the first time-frequency resource block is located and the frequency band in the previous time segment is different, and the allocated site identifier information is different, or The frequency band corresponding to the first time-frequency resource block is different in the time zone in which the first time-frequency resource block is located and the frequency band in the subsequent time period, and the allocated site identification information is different.
  • the site identification duplicate information is the first site identifier
  • the first site corresponding to the information identifies the duplicate information
  • the first site identifier duplicate information is 1-bit bit information and is appended to the first site identifier information.
  • the station identification duplicate information is the first time period
  • the second site identifier duplicate information corresponding to the allocated site identifier information, the second site identifier duplicate information being at least one bit of information.
  • the first indication information includes frequency domain resource allocation indication information for indicating frequency band division
  • the second station The identification duplicate information is appended to the frequency domain resource allocation indication information.
  • the first indication The site identification duplicate information and the time indication information are located in the efficient signaling field B of the physical layer preamble or in the frame body of the medium access control layer.
  • the first indication information includes site parameter information, where the site parameter information includes a time segment index, where the time segment index is used to indicate site identifier information allocation. period.
  • the resource is performed in the time domain
  • the allocated time period is equal, and the time indication information includes only the number of time segments for resource allocation in the time domain, wherein the length of each time segment is implicitly indicated according to the number of time segments.
  • the time indication information is further A broadcast frame indication information is included, the broadcast frame indication information being used to indicate a time period during which the broadcast frame is transmitted.
  • the fourth aspect provides a receiving end device, including: a receiving unit, configured to receive, from a sending end device, resource indication information for performing resource allocation in a time domain and a frequency domain, where the resource indication information includes time indication information and First indication information for performing resource allocation on a frequency domain, where the time indication information includes a number of time segments for resource allocation in a time domain or the time indication information includes a time period for resource allocation in a time domain a number and a length of the time segment; a determining unit, configured to determine the allocated time-frequency resource according to the resource indication information.
  • the first indication information includes site identifier information, where the resource indicator information further includes site identifier duplicate information, where the site identifier duplicate information is used to indicate Whether the station identification information allocated by the first frequency band in the current time period is the same as the station identification information allocated by the first frequency band in the adjacent time period.
  • the site identifier duplicate information is the first site identifier duplicate information corresponding to the first site identifier information, where the first The site identification duplicate information is 1-bit bit information and is appended to the first site identification information.
  • the site identifier duplicate information is a duplicate of the second site identifier corresponding to the site identifier information that is allocated by the first time segment Information
  • the second site identification duplicate information is at least one bit of information.
  • the fourth possible implementation in the fourth aspect In the current mode, the first indication information includes frequency domain resource allocation indication information for indicating frequency band division, and the second station identifier repetition information is appended to the frequency domain resource allocation indication information.
  • the first indication information, The station identification duplicate information and the time indication information are located in the efficient signaling field B of the physical layer preamble or in the frame body of the medium access control layer.
  • the first indication information includes site parameter information, where the site parameter information includes a time segment index, where the time segment index is used to indicate site identifier information allocation. period.
  • the resource is performed in the time domain
  • the allocated time period is equal, and the time indication information includes only the number of time segments for resource allocation in the time domain, wherein the length of each time segment is implicitly indicated according to the number of time segments.
  • the time indication information further includes The broadcast frame indication information is used to indicate a time period during which the broadcast frame is transmitted.
  • the sending end device sends, to the receiving end device, indication information for performing resource allocation in the frequency domain and time indication information for performing resource allocation in the time domain.
  • the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • FIG. 1 is a schematic diagram of a WLAN system.
  • FIG. 2 is a schematic block diagram of a non-time division multiplexed PPDU.
  • FIG. 3 is a schematic structural diagram of a time division multiplexing PPDU according to an embodiment of the present invention.
  • 4 is a schematic diagram of resource block locations in a 20 MHz bandwidth.
  • Figure 5 is a spectral block diagram of a 20 MHz bandwidth.
  • FIG. 6 is a schematic flowchart of a method for resource allocation according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of time-frequency resource allocation according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of resource indication information according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of resource indication information according to another embodiment of the present invention.
  • FIG. 10 is a schematic diagram of resource indication information according to another embodiment of the present invention.
  • FIG. 11 is a schematic flowchart of a method for resource allocation according to another embodiment of the present invention.
  • FIG. 12 is a schematic diagram of time-frequency resource allocation according to another embodiment of the present invention.
  • FIG. 13 is a schematic diagram of time-frequency resource allocation according to another embodiment of the present invention.
  • FIG. 14a is a schematic block diagram of resource indication information of a medium access control layer according to an embodiment of the present invention.
  • FIG. 14b is a schematic block diagram of resource indication information of a medium access control layer according to another embodiment of the present invention.
  • FIG. 14c is a schematic block diagram of resource indication information of a medium access control layer according to another embodiment of the present invention.
  • FIG. 15 is a schematic block diagram of resource indication information according to another embodiment of the present invention.
  • FIG. 16 is a schematic flowchart of a method for resource allocation according to another embodiment of the present invention.
  • Figure 17 is a schematic block diagram of a transmitting device in accordance with an embodiment of the present invention.
  • Figure 18 is a schematic block diagram of a transmitting device according to an embodiment of the present invention.
  • FIG. 19 is a schematic block diagram of a transmitting device according to another embodiment of the present invention.
  • FIG. 20 is a schematic block diagram of a receiving end device according to another embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a WLAN system.
  • the WLAN system includes one or more access points AP 11, and also includes one or more station STAs 12. Data transmission is performed between the access point and the station, wherein the station determines the resource scheduled to be based on the preamble sent by the access point, and performs data transmission between the resource and the access point.
  • the sending end is a network device
  • the receiving end is a terminal device.
  • a network side device in the communication system may be mentioned.
  • it may be an access point (AP) in the WLAN, and the AP may also be called a wireless access point or bridge. Or a hotspot, etc., which can access a server or a communication network.
  • AP access point
  • the AP may also be called a wireless access point or bridge.
  • a hotspot, etc. which can access a server or a communication network.
  • a terminal device in a communication system may be cited.
  • it may be a user station (Station, STA) in a WLAN.
  • the STA may also be referred to as a user, and may be a wireless sensor, a wireless communication terminal, or a mobile terminal, such as a mobile device.
  • a telephone or "cellular" telephone
  • a computer with wireless communication capabilities For example, it may be a portable, pocket-sized, hand-held, computer-integrated, wearable, or in-vehicle wireless communication device that exchanges voice, data, and the like communication data with a wireless access network.
  • GSM global system of mobile communication
  • CDMA code Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access Wireless
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • the network device may be a Base Transceiver Station (BTS) in GSM or CDMA, may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNB or e-NodeB) in LTE. It may be a micro cell base station, which may be a micro base station (Micro), may be a pico base station (Pico), may be a home base station, or may be referred to as a femto cell base station (femto), which is not limited in the present invention.
  • the terminal device may be a mobile terminal, a mobile user device, or the like, such as a mobile phone (or "cellular" phone).
  • FIG. 2 is a schematic block diagram of a non-time division multiplexed PPDU.
  • the non-time division multiplexing PPDU includes a preamble and a data field.
  • the preamble portion includes a legacy preamble and a subsequent High Efficient (HE) preamble.
  • the traditional preamble includes a Legacy Shorting Training Field (L-STF), a Legacy Long Training Field (L-LTF), and a Legacy Signal Field (L-SIG). .
  • Efficient preamble includes Rpeated Legacy Signal Field (RL-SIG), High Efficient Signal Field A (HE-SIGA), and High Efficient Signaling Field B (High Efficient) Signal Field B, HE-SIGB), High Efficient Shorting Training Field (HE-STF) and High Efficient Long Training Field (HE-LTF).
  • R-SIG Legacy Signal Field
  • HE-SIGA High Efficient Signal Field A
  • HE-SIGB High Efficient Signaling Field B
  • HE-STF High Efficient Shorting Training Field
  • HE-LTF High Efficient Long Training Field
  • the length of the non-time division multiplexed PPDU minus the length of the conventional preamble may be included in the L-SIG.
  • FIG. 3 is a schematic structural diagram of a time division multiplexing PPDU according to an embodiment of the present invention.
  • the next-generation standard 802.11ax time-division multiplex PPDU structure can be as shown in Figure 3.
  • the time division multiplexed PPDU includes a preamble and a plurality of data fields in time.
  • the preamble includes a legacy preamble and an efficient preamble.
  • Traditional preambles include L-STF, L-LTF, and L-SIG
  • efficient preambles include RL-SIG, HE-SIGA, HE-SIGB, HE-STF, and HE-LTF.
  • the time division multiplexed PPDU may include a plurality of HE-LTFs, each of which has a corresponding HE-STF and HE-LTF for automatic gain control and channel estimation.
  • the L-SIG in the time division multiplexed PPDU may include a length field, which may indicate the length of the time division multiplexed PPDU minus the length of the conventional preamble.
  • the data field shown in FIG. 3 may be a broadcast frame (for example, a multicast frame), and the multicast frame is used to trigger uplink multi-user transmission, including a resource allocation indication to multiple users.
  • a multicast frame may be placed only in the first time period of the multiple time segments of the scheduling division, or may be placed only in the last time period of the multiple time segments of the scheduling division, or may be placed at other times.
  • the embodiments of the present invention are not limited thereto for a certain period of time of the segment.
  • the existing indication information for resource allocation in the frequency domain may include Common Parameters, Frequency Resource Allocation indication information, Station Identity (STA ID) information, and each Scheduled Site Parameters (User Parameters).
  • the indication information of the resource allocation in the frequency domain may be located in the high-efficiency signaling field B, or may be located in the frame body of the medium access control (MAC), or may be partially located in the frame body of the MAC.
  • the frequency domain resource allocation indication information in the indication information, the site identification information, and the site parameter information may be located in a frame body of the MAC.
  • 4 is a schematic diagram of resource block locations in a 20 MHz bandwidth.
  • the rule currently determined by 802.11ax for resource block size partitioning is to use 26 subcarriers as a resource block, here denoted by 1*26.
  • the discrete Fourier transform/Inverse Discrete Fourier Transform (DFT/IDFT) points of the 802.11ax data segment are 256, that is, There are 256 subcarriers.
  • the subcarriers -1, 0, and 1 are direct current (DC) subcarriers, and the left subcarriers -122 to 2, and the right subcarrier 2 to subcarrier 122 are used to carry data information, that is, 242.
  • the subcarriers are used to carry data information.
  • Subcarrier-128 to subcarrier-123 and subcarrier 123 to subcarrier 128 are guard bands. These 242 subcarriers are divided into 9 resource blocks, each resource block is 26 subcarriers, and 8 unused subcarriers remain.
  • Figure 5 is a spectral block diagram of a 20 MHz bandwidth.
  • the frequency domain resources of the 20 MHz bandwidth may include the following four types of frequency domain resource blocks, namely:
  • one frequency domain resource block is composed of one sub-frequency domain resource block (ie, 26 subcarriers).
  • one frequency domain resource block is composed of two sub-frequency domain resource blocks (ie, 2 ⁇ 26 subcarriers).
  • one frequency domain resource block is composed of four sub-frequency domain resource blocks (ie, 4 ⁇ 26 subcarriers).
  • the 4 ⁇ 26 type frequency domain resource block includes 106 subcarriers, that is, includes 102 data subcarriers and 4 pilot subcarriers.
  • 106 subcarriers that is, includes 102 data subcarriers and 4 pilot subcarriers.
  • the frequency domain resource block distribution map of the frequency domain resource of 20 MHz bandwidth can be divided into four layers, the first layer is a 1 ⁇ 26 type frequency domain resource block distribution map, and the second layer is a 2 ⁇ 26 type. Frequency domain resource block and 1 ⁇ 26 type frequency domain resource block distribution map, the third layer is a 4 ⁇ 26 type frequency domain resource block and a 1 ⁇ 26 type frequency domain resource block distribution map, and the fourth layer is a 242 type Frequency domain resource block distribution map.
  • the frequency domain resource of the 20 MHz bandwidth (that is, an example of the target frequency domain resource) may be composed of any frequency domain resource block in the first layer to the third layer, including 242 subcarriers, and each station can only Allocate one of the frequency domain resource blocks.
  • the frequency domain resource spectrum of the 20 MHz bandwidth may be composed of frequency domain resource blocks in the fourth layer.
  • the frequency domain resource of the 20 MHz bandwidth is allocated to one site, and
  • the bandwidth indication information in the pilot code and the single user transmission indication bit indicate the case of resource allocation.
  • the method for resource scheduling according to the present invention mainly relates to a case where a frequency domain resource of a 20 MHz bandwidth is composed of any of the first to third frequency layer resource blocks and is allocated to a plurality of stations.
  • Figure 5 only shows a spectral block diagram of the 20 MHz bandwidth.
  • the spectral block diagram of the 40 MHz bandwidth and the spectral block diagram of the 80 MHz bandwidth can also be compared to the spectrum block diagram of the 20 MHz bandwidth.
  • the resource block of the 40 MHz bandwidth may be limited to 1*26, 2*26, 4*26, 242, 2*242.
  • the spectrum block diagram of the 40 MHz bandwidth may be divided into five layers, and the intermediate gap position may be a DC subcarrier.
  • the first layer is 1*26 map
  • the second layer is 2*26 and 1*26 map
  • the third layer is 4*26 and 1*26 map
  • the fourth layer is 242 map
  • the fifth layer is 2*242 distribution map.
  • the spectrum distribution map of the 40 MHz bandwidth can be combined into any of the four resource layers to form a spectrum of 484 subcarrier sizes.
  • each site can only allocate one of the resource blocks.
  • the frequency domain resource spectrum of the 40 MHz bandwidth may be composed of frequency domain resource blocks in the fifth layer.
  • the frequency domain resource of the 40 MHz bandwidth is allocated to one site, and the bandwidth indication information in the preamble may be The single user transmission indication bit indicates the case of resource allocation.
  • the resource blocks of the 80 MHz bandwidth can be limited to 1*26, 2*26, 4*26, 242, 2*242, and 996.
  • the spectral block diagram of the 80 MHz bandwidth can be divided into six layers, and the intermediate gap position can be a DC subcarrier.
  • the first layer is 1*26 map
  • the second layer is 2*26 and 1*26 map
  • the third layer is 4*26 and 1*26 map
  • the fourth layer is 242 map
  • the fifth layer is 2*242 distribution map
  • the sixth layer is 996 distribution map.
  • the spectrum distribution map of the 80 MHz bandwidth can be a combination of any of the five resource blocks to form a spectrum of 484 subcarrier sizes.
  • each site can only allocate one of the resource blocks.
  • the frequency domain resource spectrum of the 80 MHz bandwidth may be composed of frequency domain resource blocks in the sixth layer.
  • the frequency domain resource of the 80 MHz bandwidth is allocated to one site, and the bandwidth indication information in the preamble may be The single user transmission indication bit indicates the case of resource allocation. It should be understood that analogy to the above spectrum profile, it can also be extended to 160 MHz and the like.
  • the resource allocation is divided into two types, one is a centralized resource allocation method, that is, one indication information (a set of frequency domain resource allocation indications) in the frequency domain resource allocation indication set of all stations is allocated, and the site identification information is concentrated in one. Indication information (a collection of site identification information).
  • the other is a distributed resource allocation method based on each site, that is, the allocation of the spectrum resource allocation indication and the site identification information of the site are distributed in the site parameter information of each site.
  • the first one of the centralized resource allocation methods described in Figures 6-14 below. Described in FIG. 15 is another distributed resource allocation method based on each site.
  • FIG. 6 is a schematic flowchart of a method for resource allocation according to an embodiment of the present invention.
  • the method shown in FIG. 6 can be performed by a source device, and the source device can be an access point or a site.
  • the method shown in Figure 6 includes:
  • the source device determines resource indication information for performing resource allocation in a time domain and a frequency domain, where the resource indication information includes time indication information and first indication information used for resource allocation in a frequency domain, where the time indication is The information includes the number of time periods in which the resource allocation is performed in the time domain or the time indication information includes the number of time segments and the length of the time period for resource allocation in the time domain;
  • the sending end device sends, to the receiving end, indication information for performing resource allocation in the frequency domain and time indication information for performing resource allocation in the time domain.
  • the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • the first indication information can be used for resource allocation in the frequency domain.
  • the first indication information may be resource indication information in an existing resource allocation method using frequency division multiplexing, that is, may be part of information in the HE-SIGB. If the first centralized resource allocation method is used, the first indication information may include frequency domain resource allocation indication information, site identification information, and site parameter information indicating frequency band division.
  • the high-efficiency signaling field B may further include a tail bit for convolutional coding and a cyclic redundancy code for error detection.
  • the embodiment of the present invention may add time indication information to the public parameter information.
  • a number of bits may be added to the public parameter information to indicate the number of time segments. For example, 1 bit is added for implementing an indication of up to 2 time periods; for example, 2 bits are added for implementing an indication of up to 4 time periods.
  • the time indication information may also be placed in other locations in the HE-SIG-B, which is not limited by the embodiment of the present invention.
  • the time period for performing resource allocation in the time domain is equal.
  • the time indication information includes only the number of time periods for resource allocation in the time domain, where the length of each time segment is according to time. The number of segments is implicit.
  • the length of the time segment divided within a certain schedule may be the same.
  • the time indication information may include only the number of time segments, and the time segment length may be implicitly represented.
  • the length of each equal length period can be implicitly indicated according to the number of time segments and the total length of the data fields.
  • the total length of the data field may be the sum of all data fields in the time division multiplexed PPDU, and the total length of the data field may pass
  • the length indicated by the length field in the L-SIG is calculated by subtracting the HE-SIG-A, HE-SIF-B and the HE-STF and HE-LTF lengths before the respective data fields.
  • the length of the last time segment may be smaller than the length of other equal length segments.
  • the time indication information when the time period length is the same may also include the number of time segments and the length of the time segment.
  • the length of the time period may be one, that is, the length of the time period indicating the equal length.
  • the length of the time period can also be two, that is, the length of the time period indicating the equal length and the length of the last time period.
  • the length of the time segment within a certain scheduling may be different.
  • the time indication information may include the number of time segments and the length of the time segment.
  • the length of the time period may correspond to the number of time periods. For example, if a schedule is divided into 4 time segments, that is, the number of time segments is 4, the length of the time segment may be 4 values, indicating the length of each time segment.
  • the time indication information further includes broadcast frame indication information, where the broadcast frame indication information is used to indicate a time period in which the broadcast frame is sent.
  • the broadcast frame indication information may indicate which time period is used to transmit a broadcast frame (such as a multicast frame).
  • a broadcast frame such as a multicast frame
  • the number of time segments of a certain scheduling division is 4, and is used to indicate that the broadcast frame indication information of the multicast frame may be “1010”, indicating the first time period and the third time.
  • the segment is a broadcast frame
  • the second time period and the fourth time period are normal data frames.
  • the broadcast frame indication information may further indicate whether the broadcast frame is sent in the first time period by using 1 bit.
  • the number of time segments is 4, and the broadcast frame indication information may be “1”, indicating that the first time period is a broadcast frame (multicast frame), and the other three time segments are normal data frames.
  • the broadcast frame indication information may be “0”, indicating that the four time periods are normal data frames.
  • the broadcast frame indication information may further indicate whether the broadcast frame is sent in the first time period by using 1 bit.
  • the number of time segments is 4, and the broadcast frame indication information may be “1”, indicating that the last time period is a broadcast frame (multicast frame), and the other three time segments are normal data frames.
  • the broadcast frame indication information may be “0”, indicating that the four time periods are normal data frames.
  • the time period described in the embodiment of the time-frequency resource allocation based on FIG. 7, FIG. 12 and FIG. 13 is the time period corresponding to the normal data frame, that is, the time period described in the embodiment. Does not include the time period during which broadcast frames are sent.
  • the number of time periods for transmitting a broadcast frame may be one.
  • the number of time periods for a certain scheduling division is 4, and the broadcast frame refers to The bit indication of the message is "1000", indicating that the first time period is used to transmit the broadcast frame, and the other three time periods are normal data frames.
  • the embodiment of the present invention may also send a broadcast frame in the last time period, that is, the bit indication of the broadcast frame indication information is “0001”. It should be understood that the embodiment of the present invention does not limit the time period for transmitting a broadcast frame.
  • the number of time periods for transmitting the broadcast frame may also be multiple. For example, the number of time segments for a certain scheduling division is 6, and the bit indication of the broadcast frame indication information is “101000”, indicating that the first time period and the third time period are used to send broadcast frames, and the other four time periods are Normal data frame.
  • the embodiment of FIG. 13 has only four time periods, and then the resource indication on its time frequency is discussed based on the four time periods. It should also be understood that for the embodiment of the normal data frame, the remaining four time periods are considered to be adjacent, that is, the second time period and the fourth time period of the six time periods are adjacent. of.
  • the time indication information can also be indicated by including a time start indication and a time offset in each of the site parameter information.
  • the bit overhead of this method is large.
  • an Orthogonal Frequency Division Multiplexing (OFDM) data symbol length is 12.8us, and assuming a competition period length of 0.8us, the OFDM symbol length is 13.6us. .
  • a maximum of 9 stations can be called in a 20 MHz bandwidth, and a total of 108 bits are required.
  • bandwidths 40/80/160 MHz
  • the resource indication information in the embodiment of the present invention may include first indication information and time indication information.
  • the first indication information may include frequency domain resource allocation indication information, site identification information, and site parameter information during a scheduled time period.
  • the frequency domain resource allocation indication information of the multiple time segments may constitute a frequency domain resource allocation indication information set, and the multiple site identification information may constitute a site identification information set, where the site parameter information may include site parameter information of the first site, and second Site parameter information for the site and site parameter information for the third site, and so on.
  • the frequency domain resource allocation indication information may be a spectrum division situation corresponding to each time segment.
  • the description of the frequency domain resource allocation indication information may be as follows:
  • the frequency domain resource allocation indication information is used to indicate the frequency band division. Specifically, each time period has a corresponding frequency domain resource allocation indication information on the frequency band, and multiple frequency domain resource allocation indication information corresponding to the multiple time segments form a frequency domain resource allocation indication set.
  • the embodiment of the present invention does not limit the form of the frequency domain resource allocation indication information.
  • the frequency domain resource allocation indication information may be a bitmap indication, that is, a resource block allocated to the same site is represented by a continuous sequence of “1 (0)”, represented by a transition of 1->0 or 0->1. Switch to another site.
  • the frequency domain resource allocation indication information obtained by using the method may be 001101100 in time period 1 and 001101111 in time period 2. It should be understood that the method can be read from top to bottom from the vertical axis of Figure 7, or from bottom to top.
  • the frequency domain resource allocation indication information may be: 001101100 001101111
  • the site identification information set may be: AID1 AID2 AID3 AID4 AID5 AID1 AID6 AID7 AID8.
  • the embodiment of the present invention avoids separately indicating resource allocation in time for each station, and can save bit overhead.
  • the first indication information may include site identification information, where the resource indication information may further include site identifier repetition information, where the site identifier repetition information is used to indicate that the first frequency band is allocated in the current time period.
  • the station identification information is the same as the station identification information allocated by the first frequency band in the adjacent time period.
  • the site identification information may be identification information of a certain site.
  • the set of site identification information in various embodiments can be understood as a collection of site identification information of multiple sites.
  • the site identifier repetition information is used to indicate whether the site identifier information of a certain resource block is the same as the site identifier information of the adjacent resource block of the adjacent time period, and the site identifier duplicate information set may include corresponding information of each site identifier information.
  • the site identifies a collection of duplicate information.
  • the sending end device sends, to the receiving end device, indication information for performing resource allocation in the frequency domain and time indication information for performing resource allocation in the time domain.
  • the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • the station identifier repeating information may be sent to the receiving end device to indicate that the station identifier information allocated by a resource block in the current time period is allocated by the resource block adjacent to the resource block in the adjacent time period. Is the site identification information the same?
  • the embodiment of the present invention can Omitting part of the site identification information further saves bit overhead.
  • FIG. 7 is a schematic diagram of time-frequency resource allocation according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of resource indication information according to an embodiment of the present invention. The resource indication information of one embodiment of the present invention will be described below with reference to FIG. 7 and FIG. 8.
  • the site identifier duplicate information is the first site identifier duplicate information corresponding to the first site identifier information, and the first site identifier duplicate information is 1-bit bit information and is appended to the first site identifier information.
  • the station identification duplicate information may indicate whether the site identification information allocated by the first frequency band in the current time period is the same as the site identification information allocated by the first frequency band in the previous time period, and may also indicate that the first frequency band is allocated in the current time period.
  • the site identification information is the same as the site identification information allocated by the first frequency band in the latter period. That is to say, the method of indicating the site identification information may include the above two types.
  • the site identification information filled in by each resource block is as shown in FIG. 7.
  • the site identification information can be represented by AIDn, where n is the serial number.
  • Each site identification information can be represented by 11-bit data.
  • the site identification information filled in by the first resource block in time period 1 is AID5
  • the site identification information filled in the third resource block is AID3
  • the site identification information filled in by the fifth resource block is shown in FIG. For AID1.
  • the station identification information filled in by the resource blocks of the time period overlaps, and the site identification information generally needs 11 bit data representation, and the bit overhead is relatively large.
  • the embodiment of the present invention may add, after each site identification information, a 1-bit bit information indicating whether the site identification information allocated by the first frequency band in the current time period is the same as the site identification information allocated by the first frequency band in the adjacent time period. In this way, the embodiment of the present invention can avoid indicating duplicate site identification information, and save bit overhead.
  • the site identification duplicate information may indicate whether the site identification information allocated by the first frequency band in the current time period is the same as the site identification information allocated by the first frequency band in the previous time period.
  • the station identifier information allocated by the first frequency band in the current time period and the first frequency band allocated in the previous time period may be allocated.
  • the site identifier information is the same.
  • the first site identifier duplicate information is 0, it may indicate that the site identifier information allocated by the first frequency band in the current time period is different from the site identifier information allocated by the first frequency band in the previous time period.
  • the first frequency band may be any frequency band in the entire frequency band
  • the first station identification information may be site identification information allocated by any one of the resource blocks.
  • the 1-bit information appended to the site identification information on the first time period may default to 0. Since the forward comparison method of the first method is adopted and the same site identification information is included in the second time period, in order to save duplicate site identification information, the site identification information and the corresponding site identifier repeated in the first time period can be The duplicate information is omitted.
  • the station identification information (STA ID) + site identification duplicate information (which can be represented by repeat bits) in the first time period may be: AID2 0 AID3 0 AID4 0 AID5 0, second time
  • the STA ID+repeat bits on the segment can be AID1 1 AID6 0 AID7 0 AID8 0.
  • the site identification duplicate information may also indicate whether the site identification information allocated by the first frequency band in the current time period is the same as the site identification information allocated by the first frequency band in the latter time period.
  • the station identifier information allocated by the first frequency band in the current time period and the first frequency band allocated in the latter time period may be allocated.
  • the site identifier information is the same; when the first site identifier duplicate information is 0, it may indicate that the site identifier information allocated by the first frequency band in the current time period is different from the site identifier information allocated by the first frequency band in the latter time period.
  • the first frequency band may be any one of the entire frequency bands
  • the first station identification information may be any one of the station identification information allocated for all resource blocks.
  • the 1-bit information appended to the site identification information on the last time period may default to 0.
  • the site identifier is repeated in the second time period.
  • the information and the corresponding site identification duplicate information are omitted.
  • the station identification information (STA ID) + site identification duplicate information (which can be represented by repeat bits) in the first time period may be: AID1 1 AID2 0 AID3 0 AID4 0 AID5 0, second
  • the STA ID+repeat bits on the time period can be AID6 0 AID7 0 AID8 0.
  • the resource indication information can be summarized into the resource indication information shown in FIG. 8, that is, the resource indication information shown in FIG. 8 may include a frequency resource allocation indication information set (which may be represented by a Frequency Resource Allocation List), ( Site identification information + site identification duplicate information) collection and site parameter information for each site (can be represented by STA Parameters).
  • the site parameter information may include site parameter information of the first site, site parameter information of the second site, and the like.
  • the resource indication information may also include public parameter information.
  • the site parameter information of the first site may include a Modulation and Coding Scheme (MCS), a Number of Streams (Nsts), a coding type, and a transmission beamforming. (Transmit Beamforming, TxBF) or Space Time Block Code (STBC).
  • MCS Modulation and Coding Scheme
  • Nsts Number of Streams
  • STBC Space Time Block Code
  • the site identifier repetition information is second site identifier repetition information corresponding to the site identifier information allocated by the first time period, and the second site identifier repetition information is at least one bit information.
  • the second site identifier repetition information is a corresponding at least one bit information.
  • the first time period may be any time period
  • the second station identification duplicate information is the station identification duplicate information corresponding to any time period.
  • the second site identifier duplicate information is 5-bit bit information.
  • the site identification duplicate information set is a collection of multiple second site identification duplicate information.
  • the site identification duplicate information depicted in FIG. 8 is 1-bit bit information, and the site identification duplicate information may be appended to the site identification information.
  • the site identifier duplicate information indicates the second site identifier duplicate information corresponding to the site identifier information allocated in a certain time period
  • the second site identifier duplicate information is at least one bit information, and the second site identifier duplicate information may not be Attached to other information and stored separately.
  • the site identification duplicate information set composed of multiple second site identification duplicate information corresponding to multiple time segments may be located between the frequency domain resource allocation indication information set and the site identification information set.
  • FIG. 9 is a schematic diagram of resource indication information according to another embodiment of the present invention.
  • the resource indication information shown in FIG. 9 may include a frequency resource allocation indication information set, a site identification information set, a site identification duplicate information set, and site parameter information of each site (which may be represented by STA Parameters).
  • the site parameter information of each site may include site parameter information of the first site, site parameter information of the second site, and the like.
  • the resource indication information shown in FIG. 7 may further include public parameter information.
  • the site parameter information of the first site may include Modulation and Coding Scheme (MCS), Number of Streams (Nsts), coding type, and Transmit Beamforming (TxBF). ) or Space Time Block Code (STBC).
  • MCS Modulation and Coding Scheme
  • Nsts Number of Streams
  • TxBF Transmit Beamforming
  • STBC Space Time Block Code
  • the site identification duplicate information corresponding to each site identification information may be separately extracted and located between the frequency domain resource allocation indication information set and the site identification information set.
  • the resource indication information can be expressed as:
  • the site identification duplicate information set is 0000 1000, and the site identification information set is STA2 STA3 STA4 STA5 STA1 STA6 STA7 STA8.
  • the site identification duplicate information set may be 00000 1000, and the site identification information set may be STA1 STA2 STA3 STA4 STA5 STA6 STA7 STA8.
  • both embodiments in Method 1 can avoid duplicate site identification information and save bit overhead.
  • Method 2' the site identification duplicate information set is 10000 000, and the site identification information set is STA1 STA2 STA3 STA4 STA5 STA6 STA7 STA8.
  • the first indication information includes frequency domain resource allocation indication information for indicating frequency band division
  • the second station identifier repetition information is added after the frequency domain resource allocation indication information.
  • the second site identifier repetition information may be respectively added to the corresponding frequency domain resource allocation indication information according to the time segment division, and the frequency domain resource allocation indication information and the second site identifier repetition information of all the time segments jointly form a set. That is, a set of (frequency domain resource allocation indication information + site identification duplicate information).
  • FIG. 10 is a schematic diagram of resource indication information according to another embodiment of the present invention.
  • the resource indication information shown in FIG. 10 may include (frequency resource allocation indication information + site identification repetition information) set, site identification information set, and site parameter information of each site (which may be represented by STA Parameters).
  • the site parameter information of each site may include site parameter information of the first site, site parameter information of the second site, and the like.
  • the resource indication information shown in FIG. 10 may further include public parameter information.
  • the site parameter information of the first site may include Modulation and Coding Scheme (MCS), Number of Streams (Nsts), coding type, and Transmit Beamforming (TxBF). ) or Space Time Block Code (STBC).
  • MCS Modulation and Coding Scheme
  • Nsts Number of Streams
  • TxBF Transmit Beamforming
  • STBC Space Time Block Code
  • the embodiment of the present invention may separately extract the site identification duplicate information corresponding to the site identification information in each time period, and add the frequency domain resource allocation indication information in the corresponding time period.
  • the resource indication information can be expressed as:
  • Method 1 the frequency domain resource allocation indication on the first time period is 001101100, the additional corresponding second site identification duplicate information is 0000, and the site identification information set is AID2 AID 3 AID4 AID5.
  • the frequency domain resource allocation indication is 001101111, the additional corresponding second site identifier duplicate information is 1000, and the site identification information set is AID1 AID6 AID7 AID8.
  • the (frequency domain resource allocation indication information + site identification duplicate information) set is: 001101100 0000 001101111 1000.
  • the frequency domain resource allocation indication information in the first time period is 001101100, and the additional corresponding second site identifier repeating information is 00000, and the corresponding multiple site identification information is AID1 AID2 AID 3 AID4 AID5.
  • the frequency domain resource allocation indication information on the second time period is 001101111, the additional corresponding second site identifier duplicate information is 1000, and the corresponding multiple site identification information is AID6 AID7 AID8.
  • the domain resource allocation indication information + site identification duplicate information) set is: 001101100 00000 001101111 1000. Such an embodiment may also omit the bit overhead of the site identification information.
  • Method 2 the frequency domain resource allocation indication on the first time period is 001101100, and the additional corresponding second site identifier repetition information is 10000, and the corresponding multiple site identification information AID1 AID2AID 3 AID4 AID5.
  • the second time period The frequency domain resource allocation indication is 001101111, the additional corresponding second site identifier duplicate information is 000, and the corresponding multiple site identifier information is AID6 AID7 AID8. (Frequency domain resource allocation indication information + site identifier duplicate information) is set as :001101100 10000 001101111 000.
  • FIG. 11 is a schematic flowchart of a method for resource allocation according to another embodiment of the present invention. The same steps in FIG. 9 as in FIG. 6 may be the same number. Before 620, the method shown in FIG. 11 further includes:
  • the site identifier duplicate information set includes site identifier duplicate information corresponding to the site identifier information allocated by all the resource blocks.
  • the sending end device sends, to the receiving end, indication information for performing resource allocation in the frequency domain and time indication information for performing resource allocation in the time domain.
  • the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • the bit overhead can be further saved.
  • the compression operation may not be performed in the embodiment of the present invention, but part of the information is omitted when generating the resource indication information.
  • the site identifier repetition information is specifically used to indicate the site identifier information allocated by the first frequency band in the current time period and the site identifier allocated by the first frequency band in the previous time period.
  • the first one is not included in the site identification duplicate information collection.
  • the site identifier duplicate information set does not include the site identifier duplicate information corresponding to the site identifier information allocated by all frequency bands in the last time period.
  • the two parallel methods can be referred to as the first compression method.
  • the first method, the second method, the method one', the second method, the first method, and the second method are respectively described below in combination with the first compression method.
  • the compressed (site identification information + site identification duplicate information) set in the first time period may be: AID2 AID3 AID4 AID5, and the second time period (site identification information + site identification)
  • the duplicate information) set can be AID1 1 AID6 0 AID7 0 AID8 0.
  • the compressed (site identification information + site identification duplicate information) set on the first time period may be: AID1 1 AID2 0 AID3 0 AID4 0 AID5 0, (site identification information on the second time period) + Site identification duplicate information)
  • the collection can be: AID6 AID7 AID8.
  • the two methods that can be included in the method 1 can adopt the first compression method, and the compressed site identification duplicate information set is 1000.
  • the site identification duplicate information set is 10000.
  • the method 1 can adopt the compression method, and the compressed (frequency domain resource allocation indication information + site identification duplicate information) set can be: 001101100 001101111 1000.
  • the (frequency domain resource allocation indication information + site identification duplicate information) set may be: 001101100 10000 001101111.
  • the site identifier duplicate information set does not include the site identifier repetition information corresponding to the site identifier information allocated by the first time-frequency resource block, and the frequency band of the first time-frequency resource block is at the first time-frequency.
  • the time zone in which the resource block is located is different from the frequency band in the previous time zone, and the allocated site identification information is different, or the frequency band corresponding to the first time-frequency resource block is in the time zone and the latter time when the first time-frequency resource block is located.
  • the frequency bands of the segments are divided and the assigned site identification information is different.
  • the compressing operation may further include: deleting site identification information corresponding to the site identifier information allocated by the first time-frequency resource block in the site identifier duplicate information set, where the frequency band of the first time-frequency resource block is in the first The time zone in which the time-frequency resource block is located is different from the frequency band in the previous time zone, and the allocated site identification information is different, or the frequency band corresponding to the first time-frequency resource block is The time zone in which the first time-frequency resource block is located and the frequency band in the subsequent time zone are differently divided and the assigned site identification information is different.
  • This method can be referred to as a second compression method.
  • FIG. 12 is a schematic diagram of time-frequency resource allocation according to another embodiment of the present invention.
  • the allocation map of Fig. 12 includes four time periods.
  • the time-frequency resource allocation shown in FIG. 12 can adopt the second compression method described above.
  • the site identification duplicate information is stored as an example.
  • the obtained resource indication information can be as follows:
  • the frequency domain resource allocation indication information set is 001101100 000010000 001101111 001101100
  • the site identification duplicate information set is 00000 010 0011 10100
  • the site identification information set is AID1 AID2 AID3 AID4 AID5 AID6 AID7 AID 8AID9 AID10 AID11 AID12.
  • the site identification duplicate information set is 010 0011 10100.
  • the frequency domain resource allocation indication information set is 001101100 000010000 001101111 001101100
  • the site identification duplicate information set is 00100 011 1010 00000
  • the site identification information set is AID1 AID2 AID3 AID4 AID5 AID6 AID7 AID8 AID9 AID10 AID11 AID12.
  • the first compression method shown in Figure 11 is obtained: the site identification duplicate information set is 00100 011 1010.
  • the second compression can be performed again.
  • the process of compressing again will be described below.
  • the resource blocks allocated to the same station when the resource blocks allocated to the same station are allocated, the resource blocks allocated in the previous time period are not smaller than the resource blocks allocated in the latter time period, and the small resource blocks are in the large resource block frequency band set. .
  • Method 1 The frequency band of the first time-frequency resource block is different in the time zone in which the first time-frequency resource block is located and the frequency band in the previous time period, and the allocated site identification information is different.
  • the time-frequency resource block in which the AID6 is located in the time period 2 can satisfy the condition of the first time-frequency resource block.
  • the frequency band corresponding to AID6 has different frequency band divisions in time period 1, that is, the time band 1 frequency band is divided into two 2*26, and the time band 2 frequency band is divided into one 4*26.
  • the frequency band corresponding to the time-frequency resource block in which AID6 is located is allocated to AID1 and AID2 in time period 1, and is assigned to AID6 in time period 2.
  • the band is in time
  • the frequency bands of segment 1 and time segment 2 are different and the assigned site identification information is different.
  • the resource block size allocated in the time segment 1 is (2*26 2*26 1*26 2*26 2*26)
  • the resource block size allocated in the time segment 2 is (4*26 1*26 4*26). )
  • the station identification duplicate information corresponding to AID6 and AID7 on time period 2 may be omitted according to time period 2 compared with the previous time period.
  • the frequency band of the first time-frequency resource block is different in the time zone in which the first time-frequency resource block is located and the frequency band in the subsequent time period, and the allocated site identification information is different.
  • the time-frequency resource block in which the AID6 is located in the time period 2 can satisfy the condition of the first time-frequency resource block.
  • the frequency band corresponding to AID6 is different in the frequency band in time period 3, that is, the time band 3 frequency band is divided into two 2*26, and the time band 2 frequency band is divided into one 4*26.
  • the frequency band corresponding to the time-frequency resource block in which AID6 is located is allocated to AID6 in time period 2, and is assigned to AID8 and AID9 in time period 3.
  • the frequency band of the frequency band in time zone 2 and time zone 3 is different and the assigned station identification information is different.
  • the resource block size allocated in the time segment 2 is (4*26 1*26 4*26)
  • the resource block size allocated in the time segment 3 is (2*26 2*26 1*26 4*26), except
  • the resource block size of AID3 and AID7 has not changed, and the others have changed.
  • the station identification duplicate information corresponding to AID6 on time period 2 may be omitted according to time period 2 and the latter time period.
  • the site identification duplicate information set is 00100 011 1010.
  • the site identification duplicate information set is 1 11 101.
  • the site identification duplicate information set is 00100 011 1010. Based on the second compression method shown in FIG. 11, the site identification duplicate information set is 1 11 101.
  • FIG. 13 is a schematic diagram of time-frequency resource allocation according to another embodiment of the present invention.
  • the allocation map of Fig. 13 includes four time periods.
  • the time-frequency resource allocation shown in FIG. 13 can adopt the compression method shown in FIG. 11 described above.
  • the site identification duplicate information is stored as an example.
  • the obtained resource indication information can be as follows:
  • the frequency domain resource allocation indication information set is 000010000 001101100 001101111 001101100
  • the site identifier duplicate information set is 000 10100 0110 10100.
  • the first compression method shown in FIG. 11 is obtained. :
  • the site identification duplicate information set is 10100 011010100.
  • the frequency domain resource allocation indication information set is 000010000 001101100 001101111 001101100
  • the site identifier duplicate information set is 110 01100 1010 00000.
  • the first compression method shown in FIG. 11 is obtained: the site identification duplicate information set is 110 01100 1010.
  • the second compression method can be performed again.
  • the process of compressing again will be described below.
  • the resource blocks allocated by the same station in the preceding and following time periods are not the same size, that is, if one station is allocated to the resource blocks in the previous two time periods, the resource blocks allocated in the latter time period are allocated.
  • the resource block allocated on the previous time period is smaller than the resource block allocated in the previous time period, and the frequency band in which the small resource block allocated in the latter time period is located is in a subset of the large resource blocks allocated in the previous time period. For example, if the station identification information spans multiple time periods, and the small resource blocks are fixed in the relative frequency bands of the large resource blocks, such as in the upper frequency band or the lower frequency band of the large resource block, instead of selecting one of them.
  • the method of time-frequency resource allocation shown in FIG. 13 is also applicable to the second compression method shown in FIG.
  • the frequency band of the first time-frequency resource block is different in the time zone in which the first time-frequency resource block is located and the frequency band in the previous time period, and the allocated site identification information is different.
  • the time-frequency resource block in which the AID4 is located in the time segment 2 can satisfy the condition of the first time-frequency resource block.
  • the frequency band corresponding to AID4 has different frequency band divisions in time period 2 and time period 1, that is, the time band 1 frequency band is divided into a part of 4*26, and the time band 2 frequency band is divided into 1 2*26.
  • the frequency band corresponding to the time-frequency resource block in which the AID4 is located is allocated to AID1 in time period 1 and to AID4 in time period 2.
  • the frequency band of the frequency band in time period 1 and time period 2 is different and the assigned station identification information is different.
  • the station identification duplicate information corresponding to AID4 on time period 2 may be omitted according to time period 2 compared with the previous time period.
  • the frequency band of the first time-frequency resource block is different in the time zone in which the first time-frequency resource block is located and the frequency band in the subsequent time period, and the allocated site identification information is different.
  • the time-frequency resource block in which the AID3 is located in the time segment 1 can satisfy the condition of the first time-frequency resource block.
  • the frequency band corresponding to AID3 has different frequency band divisions in time period 1 and time period 2, that is, the time band 1 frequency band is divided into one 4*26, and the time band 2 frequency band is divided into two 2*26.
  • the frequency band corresponding to the time-frequency resource block in which AID3 is located is allocated to AID3 in time period 1, and is assigned to AID5 and AID6 in time period 2. That is to say, the frequency band of the frequency band in time period 1 and time period 2 is different and the assigned station identification information is different.
  • the station identification duplicate information corresponding to AID3 on time period 1 may be omitted according to time period 1 and the latter time period.
  • the site identification duplicate information set is 10100 0110 10100.
  • site identification duplicate information set It is 11 011 101.
  • the site identification duplicate information set is 110 01100 1010. Based on the second compression method, the site identification duplicate information set is 11 011 101.
  • the first indication information, the site identifier repetition information, and the time indication information may be located in an efficient signaling field B of the physical layer preamble or in a frame body of the medium access control layer.
  • FIG. 14a is a schematic block diagram of resource indication information of a medium access control layer according to an embodiment of the present invention.
  • the MAC frame includes a control frame, duration/identification information, a reception address, a transmission address, a frame body, and a frame check sequence.
  • the frame body of the MAC frame may include: a frequency domain resource allocation indication information set, a (site identification information + site identification duplicate information) set, time indication information, and site parameter information.
  • the time indication information may be located in the public parameter information.
  • the site parameter information includes site parameter information of the first site, site parameter information of the second site, and the like.
  • FIG. 14b is a schematic block diagram of resource indication information of a medium access control layer according to another embodiment of the present invention.
  • the MAC frame includes a control frame, duration/identification information, a reception address, a transmission address, a frame body, and a frame check sequence.
  • the frame body of the MAC frame may include: a frequency domain resource allocation indication information set, a site identifier duplicate information set, a site identification information set, time indication information, and site parameter information.
  • the time indication information may be located in the public parameter information.
  • the site parameter information includes first site parameter information, second site parameter information, and the like.
  • FIG. 14c is a schematic block diagram of resource indication information of a medium access control layer according to another embodiment of the present invention.
  • the MAC frame includes a control frame, duration/identification information, a reception address, a transmission address, a frame body, and a frame check sequence.
  • the frame body of the MAC frame may include (frequency domain resource allocation indication information + site identifier repetition information) set, site identifier information set, time indication information, and site parameter information.
  • the time indication information may be located in the public parameter information.
  • the site parameter information includes first site parameter information, second site parameter information, and the like.
  • FIG. 15 is a schematic block diagram of resource indication information according to another embodiment of the present invention.
  • the site parameter information of the first site may include site identification information (STA ID), modulation and coding scheme (MCS), number of streams (Nsts), and coding type ( Coding type), transmission beamforming (Transmit Beamforming, TxBF), Space Time Block Code (STBC), frequency domain resource allocation indication information, and time period index.
  • STA ID site identification information
  • MCS modulation and coding scheme
  • Nsts number of streams
  • Coding type Coding type
  • transmission beamforming Transmit Beamforming, TxBF
  • STBC Space Time Block Code
  • frequency domain resource allocation indication information and time period index.
  • the probability of resource blocks allocated to each station is 15, that is, the position of the frequency resource block allocated to the station can be taken by the 4-bit index (ie, the frequency domain resource allocation indication) information).
  • the 4-bit index ie, the frequency domain resource allocation indication
  • Table 1 is a correspondence table between frequency domain resource allocation indication information and an index.
  • Table 2 is a time period index table.
  • the index number Frequency resource block location 0000 The first 1*26 resource block 0001 The second 1*26 resource block 0010 The third 1*26 resource block 0011 4th 1*26 resource block 0100 The 5th 1*26 resource block 0101 The 6th 1*26 resource block 0110 The 7th 1*26 resource block 0111 8th 1*26 resource block 1000 The 9th 1*26 resource block 1001 The first 2*26 resource block 1010 The second 2*26 resource block 1011 The 3rd 2*26 resource block 1100 The 4th 2*26 resource block 1101 The first 4*26 resource block 1110 The second 4*26 resource block
  • the site identifier information included in the site parameter information of the site 1 is AID1, the frequency domain resource allocation indication information is “1001”, and the time segment index is “10”.
  • AID1 corresponds to time period 1 and time period 2.
  • the site identifier information included in the site parameter information of the site 3 is AID3, the frequency domain resource allocation indication information is “0100”, and the time segment index is “00”.
  • the site identifier information of the site 8 includes the site identifier information of the AID8, the frequency domain resource allocation indication information is "1110", and the time zone index is "01".
  • time indication information may include broadcast frame indication information, which will be described below in conjunction with the time-frequency resource allocation situation shown in FIG.
  • the broadcast frame indication information may be "1010", and the time period 1 and the time period 3 are used to transmit a broadcast frame. Then time period 2 and time period 4 are normal data frames. Then the time period index of this embodiment can be as shown in Table 3.
  • the site identifier information included in the site parameter information of the site 3 is AID3, the frequency domain resource allocation indication information is “0100”, and the time segment index is “10”.
  • AID3 corresponds to time period 2 and time period 4.
  • the site identifier information included in the site parameter information of the site 6 is AID6, the frequency domain resource allocation indication information is "1101”, and the time segment index is "00".
  • the site identifier information of the site 7 includes the site identification information AID7, the frequency domain resource allocation indication information is "1110", and the time segment index is "00".
  • FIG. 16 is a schematic flowchart of a method for resource allocation according to another embodiment of the present invention.
  • the method shown in Figure 16 can be performed by the receiving device.
  • the receiving device can be a site or an access point.
  • the method shown in Figure 16 includes:
  • the receiving device receives the resource indication information for performing resource allocation in the time domain and the frequency domain, where the resource indication information includes time indication information and first indication information used for resource allocation in the frequency domain.
  • the time indication information includes a number of time segments for performing resource allocation in the time domain or the time indication information includes a number of time segments and a time segment length for performing resource allocation in the time domain;
  • the sending end device sends, to the receiving end, indication information for performing resource allocation in the frequency domain and time indication information for performing resource allocation in the time domain.
  • the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • the first indication information can be used for resource allocation in the frequency domain.
  • the first indication information may be resource indication information in an existing resource allocation method using frequency division multiplexing, that is, may be part of information in the HE-SIGB.
  • the first indication information may include frequency domain resource allocation indication information indicating the frequency band division, site identification information, and site parameter information.
  • the embodiment of the present invention may add time indication information to the public parameter information.
  • a number of bits may be added to the public parameter information to indicate the number of time segments. For example, 1 bit is added for implementing an indication of up to 2 time periods; for example, 2 bits are added for implementing an indication of up to 4 time periods.
  • the time indication information may also be placed in other locations in the HE-SIG-B, which is not limited by the embodiment of the present invention.
  • the time period for performing resource allocation in the time domain is equal.
  • the time indication information includes only the number of time periods for resource allocation in the time domain, where the length of each time segment is according to time. The number of segments is implicit.
  • the length of the time segment divided within a certain schedule may be the same.
  • the time indication information may include only the number of time segments, and the time segment length may be implicitly represented.
  • the length of each equal length period can be implicitly indicated according to the number of time segments and the total length of the data fields.
  • the total length of the data field may be the sum of all data fields in the time division multiplexed PPDU, and the total length of the data field may be subtracted from the length indicated by the length field in the L-SIG by HE-SIG-A, HE-SIF-B and each data.
  • the HE-STF and HE-LTF lengths before the field are calculated.
  • the length of the last time segment may be smaller than the length of other equal length segments.
  • the time indication information when the time period length is the same may also include the number of time segments and the length of the time segment.
  • the length of the time period may be one, that is, the length of the time period indicating the equal length.
  • the length of the time period can also be two, that is, the length of the time period indicating the equal length and the length of the last time period.
  • the length of the time segment within a certain scheduling may be different.
  • the time indication information may include the number of time segments and the length of the time segment.
  • the length of the time period may correspond to the number of time periods. For example, if a schedule is divided into 4 time segments, that is, the number of time segments is 4, the length of the time segment may be 4 values, indicating the length of each time segment.
  • the time indication information further includes broadcast frame indication information, where the broadcast frame indication information is used to indicate a time period in which the broadcast frame is sent.
  • the broadcast frame indication information may indicate which time period is used to transmit a broadcast frame (such as a multicast frame).
  • the number of time segments of a certain scheduling division is 4, and is used to indicate that the broadcast frame indication information of the multicast frame may be “1010”, indicating the first time period and the third time.
  • the segment is a broadcast frame
  • the second time period and the fourth time period are normal data frames.
  • the broadcast frame indication information may further indicate whether the broadcast frame is sent in the first time period by using 1 bit.
  • the number of time segments is 4, and the broadcast frame indication information may be “1”, indicating that the first time period is a broadcast frame (multicast frame), and the other three time segments are normal data frames.
  • the time period described in the embodiment of the time-frequency resource allocation based on FIG. 7, FIG. 12 and FIG. 13 is the time period corresponding to the normal data frame, that is, the time period described in the embodiment. Does not include the time period during which broadcast frames are sent.
  • the number of time periods for transmitting a broadcast frame may be one.
  • the number of time segments for a certain scheduling division is 4, and the bit indication of the broadcast frame indication information is “1000”, indicating that the first time period is used to transmit a broadcast frame, and the other three time periods are normal data frames.
  • the embodiment of the present invention may also send a broadcast frame in the last time period, that is, the bit indication of the broadcast frame indication information is “0001”. It should be understood that the embodiment of the present invention does not limit the time period for transmitting a broadcast frame.
  • the number of time periods for transmitting the broadcast frame may also be multiple. For example, the number of time segments for a certain scheduling division is 6, and the bit indication of the broadcast frame indication information is “101000”, indicating that the first time period and the third time period are used to send broadcast frames, and the other four time periods are Normal data frame.
  • the embodiment of FIG. 13 has only four time periods, and then the resource indication on its time frequency is discussed based on the four time periods. It should also be understood that for the embodiment of the normal data frame, the remaining four time periods are considered to be adjacent, that is, the second time period and the fourth time period of the six time periods are adjacent. of.
  • the time indication information can also be indicated by including a time start indication and a time offset in each of the site parameter information.
  • the bit overhead of this method is large.
  • an Orthogonal Frequency Division Multiplexing (OFDM) data symbol length is 12.8us, assuming a competition period length of 0.8us. Then the OFDM symbol is 13.6 us in length.
  • Each of the shifts requires a 6 (log (51)) bit indication.
  • a maximum of 9 stations can be called in a 20 MHz bandwidth, and a total of 108 bits are required.
  • bandwidths 40/80/160 MHz
  • the embodiment of the present invention avoids separately indicating resource allocation in time for each station, and can save bit overhead.
  • the first indication information includes site identifier information, where the resource indication information further includes site identifier repetition information, where the site identifier repetition information is used to indicate the site identifier allocated by the first frequency band in the current time period.
  • the information is the same as the station identification information assigned by the first frequency band in the adjacent time period.
  • the site identification information may be identification information of a certain site.
  • the set of site identification information in this application can be understood as a collection of site identification information of multiple sites.
  • the site identifier repetition information is used to indicate whether the site identifier information of a certain resource block is the same as the site identifier information of the adjacent resource block in the adjacent time period, and the site identifier duplicate information set may correspond to each site identifier information. A collection of duplicate information.
  • the sending end device sends, to the receiving end device, indication information for performing resource allocation in the frequency domain and time indication information for performing resource allocation in the time domain.
  • the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • the station identifier repeating information may be sent to the receiving end device to indicate that the station identifier information allocated by a resource block in the current time period is allocated by the resource block adjacent to the resource block in the adjacent time period. Is the site identification information the same? In this way, the embodiment of the present invention can omit part of the site identification information, further saving bit overhead.
  • the site identifier repeating information is the first site identifier repeating information corresponding to the first site identifier information, where the first site identifier repeating information is 1-bit bit information and is appended to the first site identifier information.
  • the resource indication information of this embodiment may be as shown in FIG. 8 and its description. To avoid repetition, details are not described herein again.
  • the site identifier repetition information is second site identifier repetition information corresponding to the site identifier information allocated by the first time period, and the second site identifier repetition information is at least one bit information.
  • the resource indication information of this embodiment may be as shown in FIG. 9 and its description. To avoid repetition, details are not described herein again.
  • the first indication information includes frequency domain resource allocation indication information for indicating frequency band division
  • the second station identifier repetition information is added after the frequency domain resource allocation indication information.
  • the resource indication information of this embodiment may be as shown in FIG. 10 and its description. To avoid repetition, details are not described herein again.
  • the first indication information, the site identifier repetition information, and the time indication information are located in the high-efficiency signaling field B of the physical layer preamble or in the frame body of the medium access control layer.
  • the resource indication information of this embodiment may be as shown in FIG. 14a, FIG. 14b, and FIG. 14c, and is not described in detail herein to avoid repetition.
  • the site identification duplicate information set may be compressed.
  • the specific description may be as described in FIG. 11 to FIG. 13 . To avoid repetition, details are not described herein.
  • the first indication information includes site parameter information
  • the site parameter information includes a time segment index
  • the time segment index is used to indicate a time period in which the site identification information is allocated.
  • the resource indication information of this embodiment may be as shown in FIG. 15 and its description. To avoid repetition, details are not described herein again.
  • FIG. 17 is a schematic block diagram of a transmitting device in accordance with an embodiment of the present invention.
  • the transmitting end device 1700 shown in FIG. 17 can implement the foregoing method as shown in FIG. 6 or FIG. 11 . To avoid repetition, it will not be described in detail herein.
  • the sender device 1700 includes:
  • the determining unit 1701 performs resource allocation resource allocation information in the time domain and the frequency domain, where the resource indication information includes time indication information and first indication information for performing resource allocation in the frequency domain, where the time indication information is included in the time domain.
  • the number of time segments or the time indication information for performing resource allocation includes the number of time segments and the length of the time segment for resource allocation in the time domain;
  • the sending unit 1702 sends the resource indication information to the receiving end device, so that the receiving end device determines the allocated time-frequency resource according to the resource indication information.
  • the sending end device sends the resource to the receiving end for resource allocation in the frequency domain.
  • Indication information and time indication information for resource allocation in the time domain In this way, the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • the first indication information includes site identifier information, where the resource indication information further includes site identifier repetition information, where the site identifier repetition information is used to indicate the site identifier allocated by the first frequency band in the current time period.
  • the information is the same as the station identification information assigned by the first frequency band in the adjacent time period.
  • the site identifier repetition information is specifically used to indicate whether the site identifier information allocated by the first frequency band in the current time period is the same as the site identifier information allocated by the first frequency band in the previous time period, and the site is The identification duplicate information set does not include the site identification duplicate information corresponding to the site identification information allocated by all the frequency bands in the first time period.
  • the site identifier repetition information is specifically used to indicate whether the site identifier information allocated by the first frequency band in the current time period is the same as the site identifier information allocated by the first frequency band in the current time period, and the site is The identification duplicate information set does not include the site identification duplicate information corresponding to the site identification information allocated by all the frequency bands in the last time period.
  • the site identifier duplicate information set does not include the site identifier repetition information corresponding to the site identifier information allocated by the first time-frequency resource block, and the frequency band of the first time-frequency resource block is at the first time-frequency.
  • the time zone in which the resource block is located is different from the frequency band in the previous time zone, and the allocated site identification information is different, or the frequency band corresponding to the first time-frequency resource block is in the time zone and the latter time when the first time-frequency resource block is located.
  • the frequency bands of the segments are divided and the assigned site identification information is different.
  • the site identifier repeating information is the first site identifier repeating information corresponding to the first site identifier information, where the first site identifier repeating information is 1-bit bit information and is appended to the first site identifier information.
  • the site identifier repetition information is second site identifier repetition information corresponding to the site identifier information allocated by the first time period, and the second site identifier repetition information is at least one bit information.
  • the first indication information includes frequency domain resource allocation indication information for indicating frequency band division
  • the second station identifier repetition information is added after the frequency domain resource allocation indication information.
  • the first indication information, the site identifier repetition information, and the time indication information are located in an efficient signaling field B of the physical layer preamble or a frame located in the medium access control layer. In the body.
  • the first indication information includes site parameter information
  • the site parameter information includes a time segment index
  • the time segment index is used to indicate a time period in which the site identification information is allocated.
  • the time period for performing resource allocation in the time domain is equal, and the time indication information includes only the number of time segments for resource allocation in the time domain, where the length of each time segment is The number of time periods is implicitly indicated.
  • the time indication information further includes broadcast frame indication information, where the broadcast frame indication information is used to indicate a time period in which the broadcast frame is sent.
  • the sending end device sends, to the receiving end device, indication information for performing resource allocation in the frequency domain and time indication information for performing resource allocation in the time domain.
  • the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • the station identifier repeating information may be sent to the receiving end device to indicate that the station identifier information allocated by a resource block in the current time period is allocated by the resource block adjacent to the resource block in the adjacent time period. Is the site identification information the same? In this way, the embodiment of the present invention can omit part of the site identification information, further saving bit overhead.
  • FIG. 15 is a schematic block diagram of a transmitting device according to an embodiment of the present invention.
  • the transmitting device 1800 shown in FIG. 15 can implement the method as described above in FIG. 14. To avoid repetition, it will not be described in detail herein.
  • the sender device 1800 includes:
  • the receiving unit 1801 receives the resource indication information for resource allocation in the time domain and the frequency domain, where the resource indication information includes time indication information and first indication information for performing resource allocation in the frequency domain, where The time indication information includes a number of time segments for performing resource allocation in the time domain or the time indication information includes a number of time segments and a time segment length for performing resource allocation in the time domain;
  • the determining unit 1802 determines the allocated time-frequency resource according to the resource indication information.
  • the sending end device sends, to the receiving end, indication information for performing resource allocation in the frequency domain and time indication information for performing resource allocation in the time domain.
  • the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • the first indication information includes site identifier information, where the resource indication information further includes site identifier duplicate information, where the site identifier duplicate information is used to indicate the current time. Whether the station identification information allocated by the first frequency band in the segment is the same as the station identification information allocated by the first frequency band in the adjacent time period.
  • the site identifier repeating information is the first site identifier repeating information corresponding to the first site identifier information, where the first site identifier repeating information is 1-bit bit information and is appended to the first site identifier information.
  • the site identifier repetition information is second site identifier repetition information corresponding to the site identifier information allocated by the first time period, and the second site identifier repetition information is at least one bit information.
  • the first indication information includes frequency domain resource allocation indication information for indicating frequency band division
  • the second station identifier repetition information is added after the frequency domain resource allocation indication information.
  • the first indication information, the site identifier repetition information, and the time indication information are located in the high-efficiency signaling field B of the physical layer preamble or in the frame body of the medium access control layer.
  • the first indication information includes site parameter information
  • the site parameter information includes a time segment index
  • the time segment index is used to indicate a time period in which the site identification information is allocated.
  • the time period for performing resource allocation in the time domain is equal, and the time indication information includes only the number of time segments for resource allocation in the time domain, where the length of each time segment is The number of time periods is implicitly indicated.
  • the time indication information further includes broadcast frame indication information, where the broadcast frame indication information is used to indicate a time period in which the broadcast frame is sent.
  • the sending end device sends, to the receiving end device, indication information for performing resource allocation in the frequency domain and time indication information for performing resource allocation in the time domain.
  • the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • the station identifier repeating information may be sent to the receiving end device to indicate that the station identifier information allocated by a resource block in the current time period is allocated by the resource block adjacent to the resource block in the adjacent time period. Is the site identification information the same? In this way, the embodiment of the present invention can omit part of the site identification information, further saving bit overhead.
  • FIG. 19 is a schematic block diagram of a transmitting device according to another embodiment of the present invention.
  • the transmitting device 1900 of FIG. 19 can be used to implement the steps and methods in the foregoing method embodiments.
  • Figure 19 transmitter device 1900 includes a processor 1901, a memory 1902, and a transmit circuit 1904.
  • the processor 1901, the memory 1902, and the transmitting circuit 1904 can be connected by a bus system 119.
  • the transmitting device 1900 may further include an antenna 1905 and the like.
  • the processor 1901 controls the operation of the transmitting device 1900.
  • Memory 1902 can include read only memory and random access memory and provides instructions and data to processor 1901.
  • the various components of the transmitting device 1900 are coupled together by a bus system 1909, which in addition to the data bus includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 1909 in the figure.
  • the processor 1901 may be an integrated circuit chip with signal processing capabilities.
  • the processor 1901 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or discrete hardware. Component.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the processor 1901 reads the information in the memory 1902 in conjunction with the various components of its hardware sender device 1900.
  • the method of FIG. 6 can be implemented in the transmitting device 1900 of FIG. 19, and is not described in detail to avoid repetition.
  • the transmitting device 1900 performs the following operations:
  • the source device determines resource indication information for resource allocation in the time domain and the frequency domain, where the resource indication information includes time indication information and first indication information for performing resource allocation in the frequency domain, where the time indication information includes The number of time segments or time indication information for resource allocation in the time domain includes the number of time segments and the length of the time segment for resource allocation in the time domain;
  • the resource indication information is sent to the receiving end device, so that the receiving end device determines the allocated time-frequency resource according to the resource indication information.
  • the sending end device sends, to the receiving end device, indication information for performing resource allocation in the frequency domain and time indication information for performing resource allocation in the time domain.
  • the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • the first indication information includes site identifier information, where the resource indication information further includes site identifier repetition information, where the site identifier repetition information is used to indicate the site identifier allocated by the first frequency band in the current time period.
  • site identifier repetition information is used to indicate the site identifier allocated by the first frequency band in the current time period.
  • Information and stations allocated in the first frequency band in the adjacent time period The point identification information is the same.
  • the site identifier repetition information is specifically used to indicate whether the site identifier information allocated by the first frequency band in the current time period is the same as the site identifier information allocated by the first frequency band in the previous time period, and the site is The identification duplicate information set does not include the site identification duplicate information corresponding to the site identification information allocated by all the frequency bands in the first time period.
  • the site identifier repetition information is specifically used to indicate whether the site identifier information allocated by the first frequency band in the current time period is the same as the site identifier information allocated by the first frequency band in the current time period, and the site is The identification duplicate information set does not include the site identification duplicate information corresponding to the site identification information allocated by all the frequency bands in the last time period.
  • the site identifier duplicate information set does not include the site identifier repetition information corresponding to the site identifier information allocated by the first time-frequency resource block, and the frequency band of the first time-frequency resource block is at the first time-frequency.
  • the time zone in which the resource block is located is different from the frequency band in the previous time zone, and the allocated site identification information is different, or the frequency band corresponding to the first time-frequency resource block is in the time zone and the latter time when the first time-frequency resource block is located.
  • the frequency bands of the segments are divided and the assigned site identification information is different.
  • the site identifier repeating information is the first site identifier repeating information corresponding to the first site identifier information, where the first site identifier repeating information is 1-bit bit information and is appended to the first site identifier information.
  • the site identifier repetition information is second site identifier repetition information corresponding to the site identifier information allocated by the first time period, and the second site identifier repetition information is at least one bit information.
  • the first indication information includes frequency domain resource allocation indication information for indicating frequency band division
  • the second station identifier repetition information is added after the frequency domain resource allocation indication information.
  • the first indication information, the site identifier repetition information, and the time indication information are located in the high-efficiency signaling field B of the physical layer preamble or in the frame body of the medium access control layer.
  • the first indication information includes site parameter information
  • the site parameter information includes a time segment index
  • the time segment index is used to indicate a time period in which the site identification information is allocated.
  • the time period for performing resource allocation in the time domain is equal, and the time indication information includes only the number of time segments for resource allocation in the time domain, where the length of each time segment is The number of time periods is implicitly indicated.
  • the time indication information further includes broadcast frame indication information, where the broadcast frame indication information is used to indicate a time period in which the broadcast frame is sent.
  • the sending end device sends, to the receiving end device, indication information for performing resource allocation in the frequency domain and time indication information for performing resource allocation in the time domain.
  • the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • the station identifier repeating information may be sent to the receiving end device to indicate that the station identifier information allocated by a resource block in the current time period is allocated by the resource block adjacent to the resource block in the adjacent time period. Is the site identification information the same? In this way, the embodiment of the present invention can omit part of the site identification information, further saving bit overhead.
  • FIG. 20 is a schematic block diagram of a receiving end device according to another embodiment of the present invention.
  • the receiving device 2000 of FIG. 20 can be used to implement the steps and methods in the foregoing method embodiments.
  • the receiving device 2000 of FIG. 20 includes a processor 2001, a memory 2002, and a receiving circuit 2003.
  • the processor 2001, the memory 2002, and the receiving circuit 2003 are connected by a bus system 2009.
  • the sink device 2000 may further include an antenna 2005 or the like.
  • the processor 2001 controls the operation of the sink device 2000.
  • the memory 2002 can include read only memory and random access memory and provides instructions and data to the processor 2001.
  • a portion of the memory 2002 may also include non-volatile line random access memory (NVRAM).
  • NVRAM non-volatile line random access memory
  • the various components of the receiving end device 2000 are coupled together by a bus system 2009, wherein the bus system 2009 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus.
  • various buses are labeled as the bus system 2009 in the figure.
  • the processor 2001 may be an integrated circuit chip with signal processing capabilities.
  • the processor 2001 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or discrete hardware. Component.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the processor 2001 reads the information in the memory 2002 and controls the various components of the sink device 2000 in conjunction with its hardware.
  • the method of FIG. 16 can be implemented in the receiving device 2000 of FIG. 20, and will not be described in detail in order to avoid redundancy.
  • the receiving device 2000 performs the following operations:
  • the receiving device receives the resource indication information for performing resource allocation in the time domain and the frequency domain, where the resource indication information includes time indication information and first indication information for performing resource allocation in the frequency domain, where The time indication information includes a number of time segments for performing resource allocation in the time domain or the time indication information includes a number of time segments and a time segment length for performing resource allocation in the time domain;
  • the allocated time-frequency resource is determined according to the resource indication information.
  • the sending end device sends, to the receiving end device, indication information for performing resource allocation in the frequency domain and time indication information for performing resource allocation in the time domain.
  • the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • the first indication information includes site identifier information, where the resource indication information further includes site identifier repetition information, where the site identifier repetition information is used to indicate the site identifier allocated by the first frequency band in the current time period.
  • the information is the same as the station identification information assigned by the first frequency band in the adjacent time period.
  • the site identifier repeating information is the first site identifier repeating information corresponding to the first site identifier information, where the first site identifier repeating information is 1-bit bit information and is appended to the first site identifier information.
  • the site identifier repetition information is second site identifier repetition information corresponding to the site identifier information allocated by the first time period, and the second site identifier repetition information is at least one bit information.
  • the first indication information includes frequency domain resource allocation indication information for indicating frequency band division
  • the second station identifier repetition information is added after the frequency domain resource allocation indication information.
  • the first indication information, the site identifier repetition information, and the time indication information are located in the high-efficiency signaling field B of the physical layer preamble or in the frame body of the medium access control layer.
  • the first indication information includes site parameter information
  • the site parameter information includes a time segment index
  • the time segment index is used to indicate a time period in which the site identification information is allocated.
  • the time period for performing resource allocation in the time domain is equal, and the time indication information includes only the number of time segments for resource allocation in the time domain, where the length of each time segment is The number of time periods is implicitly indicated.
  • the time indication information further includes broadcast frame indication information, where the broadcast frame indication information is used to indicate a time period in which the broadcast frame is sent.
  • the sending end device sends, to the receiving end device, indication information for performing resource allocation in the frequency domain and time indication information for performing resource allocation in the time domain.
  • the embodiment of the present invention indicates resource allocation in two dimensions of frequency and time, and allocates time-frequency resources in the time domain and the frequency domain, that is, uses frequency division multiplexing and time division multiplexing to perform resource division.
  • the station identifier repeating information may be sent to the receiving end device to indicate that the station identifier information allocated by a resource block in the current time period is allocated by the resource block adjacent to the resource block in the adjacent time period. Is the site identification information the same? In this way, the embodiment of the present invention can omit part of the site identification information, further saving bit overhead.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the embodiment of the present invention. Form any limit.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the embodiment of the present invention. Form any limit.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally means that the contextual object is an "or" Relationship.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of cells is only a logical function division.
  • multiple units or components may be combined or integrated. Go to another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a computer.
  • the computer readable medium may include random access memory (RAM, English Random Access Memory), read only memory (ROM, English Rean Only Memory), and electrically erasable programmable read only memory (EEPROM, English Electrically Erasable Programmable Rean Only Memory), CD-ROM (Complete Disc Read Only Memory) or other optical disc storage, disk storage media or other magnetic storage devices, or can be used for carrying or storing
  • RAM random access memory
  • ROM read only memory
  • EEPROM Electrically Erasable Programmable Rean Only Memory
  • CD-ROM Compact Disc Read Only Memory
  • Any connection may suitably be a computer readable medium.
  • a disk and a disc include a compact disc (CD), a laser disc, a compact disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente invention concernent un procédé d'attribution de ressources, un dispositif terminal de transmission et un dispositif terminal de réception. Le procédé comprend les étapes consistant à : le dispositif terminal de transmission détermine des informations d'indication de ressources destinées à attribuer des ressources sur un domaine temporel et un domaine fréquentiel, les informations d'indication de ressources comprenant des informations d'indication temporelle et des informations d'indication destinées à attribuer les ressources sur un domaine fréquentiel et les informations d'indication temporelle comprenant le nombre de périodes de temps ou comprenant le nombre de périodes de temps et la longueur des périodes de temps ; envoyer les informations d'indication de ressources au dispositif terminal de réception, de sorte que le dispositif terminal de réception détermine une ressource temps-fréquence selon les informations d'indication de ressources. Dans les modes de réalisation de la présente invention, le dispositif terminal de transmission envoie au dispositif terminal de réception des informations d'indication destinées à attribuer les ressources sur un domaine fréquentiel et des informations d'indication de temps destinées à attribuer des ressources sur un domaine temporel. De cette manière, l'attribution de ressources est indiquée pour les deux dimensions de fréquence et de temps, ce qui permet d'obtenir une attribution de ressources temps-fréquence sur un domaine temporel et un domaine fréquentiel, c'est-à-dire en utilisant simultanément un multiplexage par répartition en fréquence et un multiplexage à répartition dans le temps pour diviser les ressources.
PCT/CN2015/081588 2015-06-16 2015-06-16 Procédé d'attribution de ressources, dispositif terminal de transmission et dispositif terminal de réception WO2016201627A1 (fr)

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CN201580047945.1A CN106688261B (zh) 2015-06-16 2015-06-16 资源分配的方法、发送端设备和接收端设备

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