WO2023103782A1 - 通信方法和通信装置 - Google Patents

通信方法和通信装置 Download PDF

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Publication number
WO2023103782A1
WO2023103782A1 PCT/CN2022/133829 CN2022133829W WO2023103782A1 WO 2023103782 A1 WO2023103782 A1 WO 2023103782A1 CN 2022133829 W CN2022133829 W CN 2022133829W WO 2023103782 A1 WO2023103782 A1 WO 2023103782A1
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Prior art keywords
information
inventory
frequency domain
signaling
domain resource
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PCT/CN2022/133829
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English (en)
French (fr)
Inventor
鲁振伟
唐瑜键
陈俊
李晨琬
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华为技术有限公司
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Publication of WO2023103782A1 publication Critical patent/WO2023103782A1/zh

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present application relates to the communication field, and more specifically, to a communication method and a communication device.
  • Radio Frequency Identification (RFID) technology is a non-contact automatic identification technology.
  • the reader provides energy for the tag by sending an excitation signal to the tag, and the tag can use the excitation signal from the reader as a carrier wave to reflect uplink signaling to the reader.
  • the reader can identify tags through the inventory process, and perform operations such as reading and writing tags.
  • the reader takes inventory of tags, it provides an uplink resource for multiple tags, and the tags that meet the conditions send inventory response information on the uplink resource. If there are multiple tags that send inventory response information on the uplink resource at the same time, then Use the corresponding conflict resolution mechanism to resolve conflicts. At present, the inventory efficiency of this method of inventorying tags one by one is low.
  • Embodiments of the present application provide a communication method and a communication device, in order to improve resource utilization, reduce inventory time delay, improve inventory efficiency, and increase inventory capacity.
  • a communication method is provided, and the method may be executed by a first device or a module (such as a chip) configured in (or used in) the first device.
  • the method includes: the first device receives first signaling from the second device, the first signaling includes a plurality of inventory information, and each inventory information in the plurality of inventory information corresponds to at least one of the plurality of candidate frequency domain resources A frequency domain resource, wherein the plurality of inventory information includes first inventory information, and the first inventory information corresponds to the first frequency domain resource in the plurality of candidate frequency domain resources; the first device is on the first frequency domain resource Sending first information, where the first information is used to respond to the first inventory information.
  • the second device can send a plurality of inventory information in one signaling, each inventory information corresponds to at least one frequency domain resource, and by using multiple available uplink resources contained in the channel bandwidth, parallel inventory processes of different devices can be realized It improves resource utilization, reduces inventory delay, improves inventory efficiency, and increases inventory capacity.
  • the plurality of inventory information corresponds to the plurality of candidate frequency domain resources in sequence in frequency order according to an arrangement sequence in the first signaling.
  • the frequency domain resources corresponding to the inventory information are implicitly indicated through the arrangement order of the inventory information in the first signaling, so that the second device and the first device reach a consensus on the frequency domain resources corresponding to the inventory information, which can save Signaling overhead, improving the reliability of signaling transmission.
  • one piece of inventory information among the plurality of inventory pieces of information includes a first indication information
  • the first indication information is used to indicate the frequency domain corresponding to the one piece of inventory information resources
  • the first signaling further includes a first bit group, a plurality of bits in the first bit group correspond to the plurality of candidate frequency domain resources one-to-one, and a bit in the first bit group is used to indicate
  • the first signaling includes the inventory information corresponding to the frequency domain resource corresponding to the one bit, or is used to indicate that the first signaling does not include the inventory information corresponding to the frequency domain resource corresponding to the one bit.
  • the first signaling can flexibly indicate the frequency domain resources corresponding to the inventory information through at least one of the above multiple methods, so that the frequency domain resources corresponding to the inventory information can be reached by the second device and the first device. Consensus improves the reliability of signaling transmission.
  • the first signaling further includes second indication information, where the second indication information is used to indicate a first quantity, and the first quantity is the plurality of inventory information The amount of inventory information in the middle.
  • the first signaling may indicate the quantity of inventory information, so that the first device can determine the quantity of inventory information contained in the first signaling after receiving the first signaling, and the first device can determine the quantity of inventory information based on the first quantity
  • the length of the first signaling is determined so that the signaling lengths of the first signaling are different based on the difference in the first quantity, so that signaling overhead can be reduced when the first signaling contains less inventory information.
  • the first signaling includes a signaling header field, or each piece of inventory information in the plurality of inventory information includes a signaling header field.
  • the plurality of inventory information corresponds to a plurality of third indication information in the first signaling, and one piece of third indication information is used to indicate the corresponding inventory information type of information.
  • the first signaling may contain different types of inventory information, and the first device may determine the type of each inventory information through the third indication information. Multiple types of inventory information are multiplexed with the same signaling, so that multiple inventory processes can be performed in parallel, improving inventory efficiency and increasing inventory capacity.
  • the plurality of inventory information includes one or more types of the following inventory information:
  • Tag selection information inventory inquiry information, inventory inquiry repeat information, inventory inquiry adjustment information, or inventory confirmation information.
  • the first signaling includes a header field
  • the header field of the first signaling includes the plurality of third indication information
  • the plurality of first signaling The three indications correspond to the plurality of inventory information according to the order of arrangement, or one inventory information among the plurality of inventory information includes one piece of the third indication information.
  • each inventory information in the plurality of inventory information includes a header field, and a header field of the inventory information includes a piece of the third indication information.
  • the third indication information is logical channel identification information.
  • the information position of the third indication information in the first signaling is stipulated, so that the first device and the second device can reach a consensus on the information position of the third indication information in the first signaling, and the failure to reach an agreement can be avoided. Situations where information is misinterpreted due to consensus.
  • the method further includes: the first device receives second information from the second device, and the second information is used to indicate the plurality of candidate frequency domain resources .
  • the first device may determine multiple candidate frequency domain resources in the channel bandwidth through the second information sent by the second device.
  • the first device and the second device reach a consensus on frequency domain resources available to the first device in the channel bandwidth.
  • the first inventory information is confirmation information
  • the confirmation information includes at least one piece of identification information
  • the at least one piece of identification information is used to confirm that the second device is among the plurality of candidate Identification information received on frequency domain resources.
  • the second device can confirm the identification information received on multiple candidate frequency domain resources, such as random number (random number, RN) 16 information, through the inventory confirmation information, so that the second device can concurrently inventory multiple Communication devices (such as tags) can improve inventory efficiency.
  • multiple candidate frequency domain resources such as random number (random number, RN) 16 information
  • the confirmation information further includes a second quantity, where the second quantity is the quantity of identification information in the confirmation information.
  • the confirmation information may indicate the quantity of identification information included, so that the first device can determine the quantity of identification information contained in the confirmation information after receiving the confirmation information, and the first device can determine the number of identification information contained in the confirmation information based on the second quantity. length, so that the confirmation information has different information lengths based on the difference in the first quantity, so that signaling overhead can be reduced when the confirmation information contains less identification information.
  • the confirmation information further includes fourth indication information, and the fourth indication information is used to indicate the plurality of candidates corresponding to each identification information in the confirmation information.
  • the fourth indication information is used to indicate the plurality of candidates corresponding to each identification information in the confirmation information.
  • the confirmation information may also include fourth indication information indicating the frequency domain resource corresponding to the confirmed identification information, so that the first device can determine the frequency domain resource corresponding to the identification information specifically confirmed by the second device, which can avoid different devices
  • the same identification information is sent on different frequency domain resources, but the second device only confirms receipt of the identification information on one of the frequency domain resources, and the device that sends the identification information misjudges that both have been confirmed to be received. Improve the reliability of the inventory process.
  • the fourth indication information includes a second bit group, and multiple bits in the second bit group correspond to the multiple candidate frequency domain resources one by one, and the A bit in the second bit group is used to indicate that the acknowledgment information includes the identification information received in the frequency domain resource corresponding to the bit, or is used to indicate that the acknowledgment information does not include the identification information received in the frequency domain resource corresponding to the bit.
  • the identification information received by the resource includes a second bit group, and multiple bits in the second bit group correspond to the multiple candidate frequency domain resources one by one, and the A bit in the second bit group is used to indicate that the acknowledgment information includes the identification information received in the frequency domain resource corresponding to the bit, or is used to indicate that the acknowledgment information does not include the identification information received in the frequency domain resource corresponding to the bit. The identification information received by the resource.
  • the confirmation information may also include fourth indication information indicating the frequency domain resource corresponding to the confirmed identification information, so that the first device can determine the frequency domain resource corresponding to the identification information specifically confirmed by the second device, which can avoid different devices
  • the same identification information is sent on different frequency domain resources, but the second device only confirms receipt of the identification information on one of the frequency domain resources, and the device that sends the identification information misjudges that both have been confirmed to be received.
  • the signaling overhead can be reduced by adopting an indication manner in which one bit corresponds to one frequency domain resource.
  • the fourth indication information includes at least one indication field, the at least one indication field corresponds to the at least one identification information one by one, and one indication field is used to indicate reception to the frequency domain resource of the identification information corresponding to the indication domain.
  • the confirmation information may also include fourth indication information indicating the frequency domain resource corresponding to the confirmed identification information, so that the first device can determine the frequency domain resource corresponding to the identification information specifically confirmed by the second device, which can avoid different devices
  • the same identification information is sent on different frequency domain resources, but the second device only confirms receipt of the identification information on one of the frequency domain resources, and the device that sends the identification information misjudges that both have been confirmed to be received. Improve the reliability of the inventory process.
  • the first inventory information is confirmation information
  • the method further includes: the first A device sends first identification information of the first device in the first frequency domain resource, wherein the confirmation information includes the first identification information, and the first information includes identity information of the first device.
  • the first signaling is public signaling.
  • the first signaling can be notified to multiple communication devices as a common signaling, which can reduce signaling overhead, so that multiple communication devices can reach a consensus on the first signaling.
  • the method further includes: the first device randomly selects the first frequency domain resource among the plurality of candidate frequency domain resources, or the first device receives Third information from the second device, where the third information is used to instruct the first device to transmit information on the first frequency domain resource.
  • the first device randomly selects the first frequency domain resource from multiple candidate frequency domain resources, or determines the first frequency domain resource through the instruction of the second device, which can reduce the occurrence frequency of uplink information sent by different communication devices
  • the probability of resource collision improves the reliability of communication.
  • the third information is specifically used to instruct a first device group to transmit information on a first frequency domain resource, and the first device group includes the first device.
  • a communication device group can share one frequency domain resource, which can reduce the probability of frequency domain resource collision in the uplink information sent by the communication device group, and can improve the communication efficiency while increasing the inventory efficiency and inventory capacity. reliability.
  • a communication method is provided, and the beneficial effects may refer to the description of the first aspect, which will not be repeated here.
  • the method may be executed by the second device or a module (such as a chip) configured on (or used for) the second device.
  • the method includes: the second device sends a first signaling to the first device, the first signaling includes a plurality of inventory information, and each inventory information in the plurality of inventory information corresponds to at least one of the plurality of candidate frequency domain resources A frequency domain resource, wherein the plurality of inventory information includes first inventory information, and the first inventory information corresponds to the first frequency domain resource in the plurality of candidate frequency domain resources; the second device is on the first frequency domain resource A first message is received from the first device, the first message is used to respond to the first inventory message.
  • the plurality of inventory information corresponds to the plurality of candidate frequency domain resources in order of frequency according to the sequence in the first signaling, or, the multiple A piece of inventory information in the inventory information includes a first indication information, and the first indication information is used to indicate a frequency domain resource corresponding to the inventory information, or the first signaling further includes a first bit group, and the first indication information A plurality of bits in a bit group correspond to the plurality of candidate frequency domain resources one by one, and a bit in the first bit group is used to indicate that the first signaling includes an inventory corresponding to the frequency domain resource corresponding to the bit. information, or used to indicate that the first signaling does not include the inventory information corresponding to the frequency domain resource corresponding to the one bit.
  • the first signaling further includes second indication information, where the second indication information is used to indicate a first quantity, and the first quantity is the plurality of inventory information The amount of inventory information in the middle.
  • the first signaling includes a signaling header field, or each piece of inventory information in the plurality of inventory information includes a signaling header field.
  • the plurality of inventory information corresponds to a plurality of third indication information in the first signaling one by one, and one third indication information is used to indicate the corresponding inventory information The message type of the message.
  • the information type is label selection, inventory query or inventory confirmation.
  • the first signaling includes a header field
  • the header field of the first signaling includes the multiple third indication information
  • the multiple third The indication information corresponds to the plurality of inventory information according to the order of arrangement, or one piece of inventory information among the plurality of inventory information includes one piece of the third indication information.
  • each inventory information in the plurality of inventory information includes a header field, and a header field of the inventory information includes a piece of the third indication information.
  • the third indication information is logical channel identification information.
  • the method further includes: the second device sends second information to the first device, where the second information is used to indicate the plurality of candidate frequency domain resources.
  • the first inventory information is confirmation information
  • the confirmation information includes at least one piece of identification information
  • the at least one piece of identification information is used to confirm that the plurality of candidate Identification information received on frequency domain resources.
  • the confirmation information further includes a second quantity, where the second quantity is the quantity of identification information in the confirmation information.
  • the confirmation information further includes fourth indication information, and the fourth indication information is used to indicate the plurality of candidates corresponding to each identification information in the confirmation information.
  • the fourth indication information is used to indicate the plurality of candidates corresponding to each identification information in the confirmation information.
  • the fourth indication information includes a second bit group, and multiple bits in the second bit group correspond to the multiple candidate frequency domain resources one by one, and the A bit in the second bit group is used to indicate that the acknowledgment information includes the identification information received in the frequency domain resource corresponding to the bit, or is used to indicate that the acknowledgment information does not include the identification information received in the frequency domain resource corresponding to the bit.
  • the identification information received by the resource, or the fourth indication information includes at least one indication field, the at least one indication field corresponds to the at least one identification information one by one, and one indication field is used to indicate that the one indication field corresponds to The frequency domain resource of the identification information.
  • the first inventory information is confirmation information
  • the method further includes: the second The device receives first identification information from the first device on the first frequency domain resource, wherein the confirmation information includes the first identification information, and the first information includes identity information of the first device.
  • the first signaling is public signaling.
  • the method further includes: the second device sends third information to the first device, and the third information is used to indicate that the first device is in the first Frequency domain resources transmit uplink information.
  • the third information is specifically used to instruct a first device group to transmit information on the first frequency domain resource, and the first device group includes the first device.
  • a communication method is provided, and the beneficial effects may refer to the description of the corresponding content in the first aspect, which will not be repeated here.
  • the method may be executed by the first device or a module (such as a chip) configured in (or used for) the first device.
  • the method includes: the first device receives second information and inventory information from the second device, the second information is used to indicate the plurality of candidate frequency domain resources, the frequency domain resources are used to transmit uplink information, and the inventory information is used for
  • the first device is inventoried, and the multiple candidate frequency domain resources include a first frequency domain resource; the first device sends first identification information of the first device on the first frequency domain resource according to the inventory information.
  • the second information is public information.
  • the method further includes: the first device randomly selects the first frequency domain resource among the plurality of candidate frequency domain resources, or the first device receives Third information from the second device, where the third information is used to instruct the first device to transmit uplink information on the first frequency domain resource.
  • the third information is specifically used to instruct a first device group to transmit information on a first frequency domain resource, and the first device group includes the first device.
  • the method further includes: the first device receives first signaling from the second device, the first signaling includes confirmation information, and the confirmation information includes At least one piece of identification information, the at least one piece of identification information confirms the identification information received on the plurality of candidate frequency domain resources for the second device, and the at least one piece of identification information includes the first identification information.
  • the confirmation information further includes a second quantity, where the second quantity is the quantity of identification information in the confirmation information.
  • the confirmation information further includes fourth indication information, where the fourth indication information is used to indicate that the plurality of candidate frequency bands corresponding to each identification information in the confirmation information A frequency domain resource in the domain resource.
  • the fourth indication information includes a second bit group, and multiple bits in the second bit group correspond to the multiple candidate frequency domain resources one by one, and the One bit in the second bit group is used to indicate that the acknowledgment information includes the identification information received on the frequency domain resource corresponding to the bit, or is used to indicate that the acknowledgment information does not include the identification information received on the frequency domain resource corresponding to the bit.
  • the identification information received by the resource; or, the fourth indication information includes at least one indication field, the at least one indication field corresponds to the at least one identification information one by one, and one indication field is used to indicate that the one indication field corresponds to The frequency domain resource of the identification information.
  • the method further includes: the first device sends the identity information of the first device to the second device in the first frequency domain resource.
  • a communication method is provided, and for beneficial effects, please refer to the description of the corresponding content in the first aspect, which will not be repeated here.
  • the method may be executed by the second device or a module (such as a chip) configured on (or used for) the second device.
  • the method includes: second information and inventory information sent by the second device to the first device, the second information is used to indicate the multiple candidate frequency domain resources, the frequency domain resources are used to transmit uplink information, and the inventory information is used for Inventorying at least one communication device, the at least one communication device includes the first device, the plurality of candidate frequency domain resources include a first frequency domain resource; the second device receives a first frequency domain resource from the first device on the first frequency domain resource 1. Identification information.
  • the second information is public information.
  • the method further includes: the first device receives third information from the second device, the third information is used to indicate that the first device A frequency domain resource transmits information.
  • the third information is specifically used to instruct a first device group to transmit information on a first frequency domain resource, and the first device group includes the first device.
  • the method further includes: the second device sends first signaling to the first device, the first signaling includes confirmation information, and the confirmation information includes at least one Identification information, the at least one identification information confirms the identification information received on the plurality of candidate frequency domain resources for the second device, and the at least one identification information includes the first identification information.
  • the confirmation information further includes a second quantity, where the second quantity is the quantity of identification information in the confirmation information.
  • the confirmation information further includes fourth indication information, and the fourth indication information is used to indicate the plurality of candidate frequency domains corresponding to each identification information in the confirmation information One of the frequency domain resources in the resource.
  • the fourth indication information includes a second bit group, and multiple bits in the second bit group correspond to the multiple candidate frequency domain resources one by one, and the first One bit in the two-bit group is used to indicate that the acknowledgment information includes the identification information received on the frequency domain resource corresponding to the bit, or is used to indicate that the acknowledgment information does not include the frequency domain resource corresponding to the bit
  • the received identification information or, the fourth indication information includes at least one indication field, the at least one indication field corresponds to the at least one identification information one by one, and one indication field is used to indicate that the indication field corresponding to the one indication field is received The frequency domain resource of the identification information.
  • the method further includes: the second device receives identity information from the first device in the first frequency domain resource.
  • a communication device may include a one-to-one corresponding module for performing the method/operation/step/action described in the first aspect.
  • the module may be a hardware circuit, or a However, software may also be realized by combining hardware circuits with software.
  • the device includes: a transceiver unit that receives first signaling from the second device, where the first signaling includes a plurality of inventory information, and each inventory information in the plurality of inventory information corresponds to a plurality of candidate frequency At least one frequency domain resource among the domain resources, wherein the plurality of inventory information includes first inventory information.
  • a processing unit configured to determine that the first inventory information corresponds to a first frequency domain resource among the plurality of candidate frequency domain resources; the transceiver unit is also configured to send first information on the first frequency domain resource, and the first information uses in response to the first inventory message.
  • the plurality of inventory information corresponds to the plurality of candidate frequency domain resources in order of frequency according to the sequence in the first signaling, or, the multiple A piece of inventory information in the inventory information includes a first indication information, and the first indication information is used to indicate a frequency domain resource corresponding to the inventory information, or the first signaling further includes a first bit group, and the first indication information A plurality of bits in a bit group correspond to the plurality of candidate frequency domain resources one by one, and a bit in the first bit group is used to indicate that the first signaling includes an inventory corresponding to the frequency domain resource corresponding to the bit. information, or used to indicate that the first signaling does not include the inventory information corresponding to the frequency domain resource corresponding to the one bit.
  • the first signaling further includes second indication information, where the second indication information is used to indicate a first quantity, and the first quantity is the plurality of inventory information The amount of inventory information in the middle.
  • the first signaling includes a signaling header field, or each piece of inventory information in the plurality of inventory information includes a signaling header field.
  • the plurality of inventory information corresponds to a plurality of third indication information in the first signaling, and one piece of third indication information is used to indicate the corresponding inventory information type of information.
  • the type of information includes one or more of the following:
  • the first signaling includes a header field
  • the header field of the first signaling includes the plurality of third indication information
  • the plurality of first signaling The three indications correspond to the plurality of inventory information according to the order of arrangement, or one inventory information among the plurality of inventory information includes one piece of the third indication information.
  • each inventory information in the plurality of inventory information includes a header field, and a header field of the inventory information includes a piece of the third indication information.
  • the third indication information is logical channel identification information.
  • the method further includes: the transceiving unit is further configured to receive second information from the second device, the second information is used to indicate that the multiple candidate frequency Domain resources.
  • the first inventory information is confirmation information
  • the confirmation information includes at least one piece of identification information
  • the at least one piece of identification information is used to confirm that the second device is among the plurality of candidate Identification information received on frequency domain resources.
  • the confirmation information further includes a second quantity, where the second quantity is the quantity of identification information in the confirmation information.
  • the confirmation information further includes fourth indication information, and the fourth indication information is used to indicate the plurality of candidates corresponding to each identification information in the confirmation information.
  • the fourth indication information is used to indicate the plurality of candidates corresponding to each identification information in the confirmation information.
  • the fourth indication information includes a second bit group, and multiple bits in the second bit group correspond to the multiple candidate frequency domain resources one by one, and the A bit in the second bit group is used to indicate that the acknowledgment information includes the identification information received in the frequency domain resource corresponding to the bit, or is used to indicate that the acknowledgment information does not include the identification information received in the frequency domain resource corresponding to the bit.
  • the identification information received by the resource, or the fourth indication information includes at least one indication field, the at least one indication field corresponds to the at least one identification information one by one, and one indication field is used to indicate that the one indication field corresponds to The frequency domain resource of the identification information.
  • the first inventory information is confirmation information
  • the transceiver unit before the first device receives the first signaling from the second device, the transceiver unit is further configured to The first frequency domain resource sends first identification information of the first device, wherein the confirmation information includes the first identification information, and the first information includes identity information of the first device.
  • the first signaling is public signaling.
  • the processing unit is further configured to randomly select the first frequency domain resource from among the plurality of candidate frequency domain resources, or the transceiving unit is further configured to receive information from The third information of the second device, where the third information is used to instruct the first device to transmit information on the first frequency domain resource.
  • the third information is specifically used to instruct a first device group to transmit information on the first frequency domain resource, and the first device group includes the first device.
  • the sixth aspect provides a communication device.
  • the device may include a one-to-one corresponding module for executing the method/operation/step/action described in the second aspect.
  • the module may be a hardware circuit or a
  • software may also be realized by combining hardware circuits with software.
  • the apparatus includes: a processing unit configured to determine a first signaling, where the first signaling includes a plurality of inventory information, and each inventory information in the plurality of inventory information corresponds to the plurality of candidate frequency domain resources At least one frequency domain resource among the multiple candidate frequency domain resources, wherein the plurality of inventory information includes first inventory information, and the first inventory information corresponds to the first frequency domain resource in the plurality of candidate frequency domain resources; the transceiver unit is configured to send to the first The device sends first signaling; the transceiving unit is further configured to receive first information from the first device on a first frequency domain resource, where the first information is used to respond to the first inventory information.
  • the plurality of inventory information corresponds to the plurality of candidate frequency domain resources in order of frequency according to the sequence in the first signaling, or, the multiple A piece of inventory information in the inventory information includes a first indication information, and the first indication information is used to indicate a frequency domain resource corresponding to the inventory information, or the first signaling further includes a first bit group, and the first indication information A plurality of bits in a bit group correspond to the plurality of candidate frequency domain resources one by one, and a bit in the first bit group is used to indicate that the first signaling includes an inventory corresponding to the frequency domain resource corresponding to the bit. information, or used to indicate that the first signaling does not include the inventory information corresponding to the frequency domain resource corresponding to the one bit.
  • the first signaling further includes second indication information, the second indication information is used to indicate a first quantity, and the first quantity is the plurality of inventory information The amount of inventory information in the middle.
  • the first signaling includes a signaling header field, or each piece of inventory information in the plurality of inventory information includes a signaling header field.
  • the plurality of inventory information is in one-to-one correspondence with the plurality of third indication information in the first signaling, and one piece of third indication information is used to indicate the corresponding inventory information The message type of the message.
  • the information type is label selection, inventory query or inventory confirmation.
  • the first signaling includes a header field
  • the header field of the first signaling includes the multiple third indication information
  • the multiple third The indication information corresponds to the plurality of inventory information according to the order of arrangement, or one piece of inventory information among the plurality of inventory information includes one piece of the third indication information.
  • each inventory information in the plurality of inventory information includes a header field, and a header field of the inventory information includes a piece of the third indication information.
  • the third indication information is logical channel identification information.
  • the transceiving unit is further configured to send second information to the first device, where the second information is used to indicate the plurality of candidate frequency domain resources.
  • the first inventory information is confirmation information
  • the confirmation information includes at least one piece of identification information
  • the at least one piece of identification information is used to confirm that the second device is among the plurality of candidate Identification information received on frequency domain resources.
  • the confirmation information further includes a second quantity, where the second quantity is the quantity of identification information in the confirmation information.
  • the confirmation information further includes fourth indication information, and the fourth indication information is used to indicate the plurality of candidates corresponding to each identification information in the confirmation information.
  • the fourth indication information is used to indicate the plurality of candidates corresponding to each identification information in the confirmation information.
  • the fourth indication information includes a second bit group, and multiple bits in the second bit group correspond to the multiple candidate frequency domain resources one by one, and the A bit in the second bit group is used to indicate that the acknowledgment information includes the identification information received in the frequency domain resource corresponding to the bit, or is used to indicate that the acknowledgment information does not include the identification information received in the frequency domain resource corresponding to the bit.
  • the identification information received by the resource, or the fourth indication information includes at least one indication field, the at least one indication field corresponds to the at least one identification information one by one, and one indication field is used to indicate that the one indication field corresponds to The frequency domain resource of the identification information.
  • the first inventory information is confirmation information
  • the transceiver unit before the second device sends the first signaling to the first device, the transceiver unit is further configured to First identification information from the first device is received on the first frequency domain resource, wherein the confirmation information includes the first identification information, and the first information includes identity information of the first device.
  • the first signaling is public signaling.
  • the transceiver unit is further configured to send third information to the first device, where the third information is used to indicate that the first device is in the first frequency domain resource transmit information.
  • the third information is specifically used to instruct a first device group to transmit information on the first frequency domain resource, and the first device group includes the first device.
  • a seventh aspect provides a communication device.
  • the device may include a one-to-one corresponding module for executing the method/operation/step/action described in the third aspect.
  • the module may be a hardware circuit or However, software may also be realized by combining hardware circuits with software.
  • the device includes: a transceiver unit, configured to receive second information and inventory information from the second device, the second information is used to indicate the plurality of candidate frequency domain resources, and the frequency domain resources are used to transmit uplink Information, the inventory information is used to inventory the first device; the processing unit is used to determine that the multiple candidate frequency domain resources include the first frequency domain resource; The resource sends the first identification information of the first device.
  • the second information is public information.
  • the processing unit is further configured to randomly select the first frequency domain resource among the plurality of candidate frequency domain resources, or the transceiving unit is further configured to receive information from The third information of the second device, where the third information is used to instruct the first device to transmit uplink information on the first frequency domain resource.
  • the third information is specifically used to instruct a first device group to transmit information on a first frequency domain resource, and the first device group includes the first device.
  • the transceiver unit is further configured to receive a first signaling from the second device, the first signaling includes confirmation information, and the confirmation information includes at least one identification information, the at least one piece of identification information confirms for the second device the identification information received on the plurality of candidate frequency domain resources, and the at least one piece of identification information includes the first identification information.
  • the confirmation information further includes a second quantity, where the second quantity is the quantity of identification information in the confirmation information.
  • the confirmation information further includes fourth indication information, and the fourth indication information is used to indicate that the plurality of candidate frequency bands corresponding to each identification information in the confirmation information A frequency domain resource in the domain resource.
  • the fourth indication information includes a second bit group, and multiple bits in the second bit group correspond to the multiple candidate frequency domain resources one by one, and the One bit in the second bit group is used to indicate that the acknowledgment information includes the identification information received on the frequency domain resource corresponding to the bit, or is used to indicate that the acknowledgment information does not include the identification information received on the frequency domain resource corresponding to the bit.
  • the identification information received by the resource; or, the fourth indication information includes at least one indication field, the at least one indication field corresponds to the at least one identification information one by one, and one indication field is used to indicate that the one indication field corresponds to The frequency domain resource of the identification information.
  • the transceiving unit is further configured to send the identity information of the first device to the second device in the first frequency domain resource.
  • a communication device may include a one-to-one corresponding module for executing the method/operation/step/action described in the fourth aspect.
  • the module may be a hardware circuit or However, software may also be realized by combining hardware circuits with software.
  • the device includes: a processing unit, configured to determine second information and inventory information, where the second information is used to indicate the plurality of candidate frequency domain resources, the frequency domain resources are used to transmit uplink information, and the inventory information
  • the at least one communication device includes the first device, the plurality of candidate frequency domain resources include the first frequency domain resource, the second information and the inventory information
  • the transceiver unit is configured to send the first device sent
  • the transceiving unit is further configured to receive the first identification information from the first device in the first frequency domain resource.
  • the second information is public information.
  • the transceiving unit is further configured to receive third information from the second device, where the third information is used to indicate that the first device operates in the first frequency domain Resource transfer information.
  • the third information is specifically used to instruct a first device group to transmit information on a first frequency domain resource, and the first device group includes the first device.
  • the transceiver unit is further configured to send first signaling to the first device, where the first signaling includes confirmation information, and the confirmation information includes at least one piece of identification information
  • the at least one identification information confirms for the second device the identification information received on the plurality of candidate frequency domain resources, where the at least one identification information includes the first identification information.
  • the confirmation information further includes a second quantity, and the second quantity is the quantity of identification information in the confirmation information.
  • the confirmation information further includes fourth indication information, and the fourth indication information is used to indicate that the plurality of candidate frequency bands corresponding to each identification information in the confirmation information A frequency domain resource in the domain resource.
  • the fourth indication information includes a second bit group, and multiple bits in the second bit group correspond to the multiple candidate frequency domain resources one by one, and the One bit in the second bit group is used to indicate that the acknowledgment information includes the identification information received on the frequency domain resource corresponding to the bit, or is used to indicate that the acknowledgment information does not include the identification information received on the frequency domain resource corresponding to the bit.
  • the identification information received by the resource; or, the fourth indication information includes at least one indication field, the at least one indication field corresponds to the at least one identification information one by one, and one indication field is used to indicate that the one indication field corresponds to The frequency domain resource of the identification information.
  • the transceiving unit is further configured to receive identity information from the first device in the first frequency domain resource.
  • a communication device including a processor.
  • the processor may implement the method in the foregoing first aspect and any possible implementation manner of the first aspect, or implement the method in the foregoing second aspect and any possible implementation manner of the second aspect.
  • the communication device further includes a memory, the processor is coupled to the memory, and can be used to execute instructions in the memory, so as to implement the method in the above first aspect and any possible implementation manner of the first aspect, or implement The second aspect above and the method in any possible implementation manner of the second aspect.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication interface may be a transceiver, a pin, a circuit, a bus, a module or other types of communication interfaces, without limitation.
  • a communication device including a processor.
  • the processor may implement the method in the above first aspect and any possible implementation manner of the first aspect, or implement the method in the above third aspect and any possible implementation manner of the third aspect.
  • the communication device further includes a memory, the processor is coupled to the memory, and can be used to execute instructions in the memory, so as to implement the method in the above first aspect and any possible implementation manner of the first aspect, or implement The above third aspect and the method in any possible implementation manner of the third aspect.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication device is a communication device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a communication device including a processor.
  • the processor may implement the method in the foregoing second aspect and any possible implementation manner of the second aspect, or implement the method in the foregoing fourth aspect and any possible implementation manner of the fourth aspect.
  • the communication device further includes a memory, the processor is coupled to the memory, and can be used to execute instructions in the memory, so as to implement the method in the above second aspect and any possible implementation manner of the second aspect, or implement The above fourth aspect and the method in any possible implementation manner of the fourth aspect.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication device is a communication device
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method in any possible implementation manner of the first aspect to the fourth aspect and the first aspect to the fourth aspect .
  • the above-mentioned processor can be one or more chips
  • the input circuit can be an input pin
  • the output circuit can be an output pin
  • the processing circuit can be a transistor, a gate circuit, a flip-flop and various logic circuits, etc. .
  • the input signal received by the input circuit may be received and input by, for example but not limited to, the receiver
  • the output signal of the output circuit may be, for example but not limited to, output to the transmitter and transmitted by the transmitter
  • the circuit may be the same circuit, which is used as an input circuit and an output circuit respectively at different times.
  • the embodiment of the present application does not limit the specific implementation manners of the processor and various circuits.
  • a computer program product includes: a computer program (also referred to as code, or an instruction), which, when the computer program is executed, causes the computer to perform the above-mentioned first to fourth aspects. aspect and the method in any possible implementation manner of the first aspect to the fourth aspect.
  • a computer-readable storage medium stores a computer program (also referred to as code, or instruction) when it is run on a computer, so that the computer executes the above-mentioned first aspect to the fourth aspect and the method in any possible implementation manner of the first aspect to the fourth aspect.
  • a computer program also referred to as code, or instruction
  • a communication system including the aforementioned at least one first device and at least one second device.
  • FIG. 1 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • Fig. 2 is another schematic diagram of the communication system provided by the embodiment of the present application.
  • Fig. 3 is another schematic diagram of the communication system provided by the embodiment of the present application.
  • Fig. 4 is a schematic diagram of the inventory process provided by the embodiment of the present application.
  • Fig. 5 is another schematic diagram of the inventory process provided by the embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 11A is a schematic diagram of the signaling format of the first signaling provided by the embodiment of the present application.
  • FIG. 17A is a schematic diagram of an inventory process of a communication device group implemented on multiple frequency domain resources provided by the embodiment of the present application;
  • FIG. 18 is a schematic diagram of an inventory process for implementing multiple communication device groups on multiple frequency domain resources provided by an embodiment of the present application
  • FIG. 19 is another schematic flowchart of the communication method provided by the embodiment of the present application.
  • Fig. 20 is a schematic diagram of the inventory confirmation information provided by the embodiment of the present application.
  • Fig. 21 is another schematic diagram of the inventory confirmation information provided by the embodiment of the present application.
  • Fig. 22 is a schematic block diagram of an example of a communication device provided by an embodiment of the present application.
  • Fig. 23 is a schematic structural diagram of an example of a terminal device provided by an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a communication system 100 applicable to the embodiment of the present application.
  • the communication system may include at least one second device, the second device may be a reader 101 as shown in Figure 1, and the communication system may also include a plurality of first devices, and the first device may be a tag as shown in Figure 1 102.
  • a radio frequency signal may be transmitted between the first device and the second device, so as to realize energy transmission and data exchange.
  • Fig. 1 is only an example, and the second device provided by the embodiment of the present application may be a reader, a reading device, a scanner, a reading head, a communicator or a reader (based on whether the tag can rewrite data wirelessly) , or, the second device may also be an access network device in a mobile communication system, for example, may be a base station in a fourth generation, fifth generation (5 th generation, 5G) or future mobile communication system. But the present application is not limited thereto.
  • the first device provided in the embodiment of the present application may be a tag, a terminal, a terminal device, or a user device.
  • a tag may be called an electronic tag, a smart tag, a radio frequency tag, a transponder, or a data carrier, etc., and is usually composed of a coupling element and a chip Composition, each label can have a unique electronic code.
  • a tag can be attached to an object to identify the object.
  • the tag 102 can also be called a radio frequency tag, a transponder, or a data carrier.
  • the reader 101 sends downlink signaling to the tag 102. Specifically, the reader 101 can send an excitation signal to the tag 102.
  • the excitation signal can carry the downlink signaling sent by the reader 101 to the tag 102, and the tag 102 receives the signal sent by the reader 101. After downlink signaling, the excitation signal can be used as a reflected carrier to send uplink signaling to the reader 101.
  • the excitation signal can be used as a reflected carrier to send uplink signaling to the reader 101.
  • part of the energy of the excitation signal provided by the reader to the tag is used for internal processing such as codec, modulation and demodulation of the tag.
  • the excitation signal is also used as a carrier, carrying the uplink signaling of the tag, and reflected to the reader;
  • the tag contains an energy storage device (such as a battery), internal processing such as codec, modulation and demodulation can rely on the function of the energy storage device, but the reader still needs to send an excitation signal as a reflected carrier.
  • FIG. 2 is a schematic diagram of a communication system 200 applicable to the embodiment of the present application.
  • the reader includes a receiver 201 and a facilitator 202.
  • the fronthaul link includes a fronthaul downlink for the receiver 201 to transmit to the facilitator 202.
  • the fronthaul downlink information or downlink data; and the fronthaul link further includes a fronthaul uplink, used for the facilitator 202 to send the fronthaul uplink information or uplink data to the receiver 201 .
  • a forward link or downlink
  • the helper 202 is responsible for sending downlink information or downlink data to the tag 203 through the forward link.
  • a reverse link or called uplink
  • the receiver 201 is also responsible for receiving the reflected signal from the tag 203 through the reverse link.
  • the fronthaul link between the assistant and the receiver can be considered to use the new radio (NR) technology of the 5G mobile communication system or the 5G sidelink (sidelink) technology for signal transmission, that is, the receiver generates information or data through
  • the 5G NR air interface technology is sent to the assistant as a fronthaul link, and the assistant forwards the information or data on the forward link.
  • the reader when the reader adopts a centralized architecture, in addition to transmitting the excitation signal and reflection signal between the reader and the tag through the forward link and the reverse link, the reader also communicates with the centralized control unit (such as Base station) for communication, the centralized control unit can schedule and control the resources and transmission behavior of the forward link used by the reader.
  • the communication between the centralized control unit and the reader is considered to use 5G NR technology or 5G sidelink (sidelink) technology.
  • Fig. 4 is a schematic flowchart of the tag inventory process.
  • tags can be attached to objects to identify them, and inventory processes can be applied to inventory counts in warehouses.
  • tags can be attached to the ears or body of the animal, and the inventory process can be applied to livestock inventory in smart farms, etc.
  • the reader sends a Select message.
  • the reader may send selection information to multiple tags, and the selection information may select some or all of the multiple tags.
  • the reader can modify the inventory flag of a session of the tag (a tag can have 4 sessions) through the selection information, so that the reader can select the inventory flag to be inventoried through the inventory query information in step 2.
  • the inventory identification bit may be 1 bit, which is used to indicate which tags are to be selected in this inventory.
  • the reader sends an inventory query (query) message.
  • a tag can have 4 sessions (session), a tag can only be in one session during an inventory process, an inquiry signaling can select one of the 4 sessions, and match the tag with the inventory flag bit in the session
  • the subset initializes the inventory process, and each tag in the subset of tags runs a counter whose initial value is a random number chosen by the tag.
  • Tag 1 sends RN16 information to the reader.
  • the tag When the count value of the counter of a tag that starts the inventory process is 0, the tag will select a 16-bit random number (random number, RN) as the temporary identification information of the tag.
  • the 16-bit random number is also called RN16 information, or RN16.
  • Tag 1 then uses the uplink resource configured by the reader to send RN16 information to the reader.
  • the reader sends an inventory confirmation (acknowledge, ACK) message to the tag 1 .
  • the reader When the reader successfully receives the temporary identifier from tag 1, the reader sends inventory ACK information to tag 1, and the inventory ACK information includes the temporary identifier from tag 1. As a confirmation of the temporary identification of the tag feedback.
  • Tag 1 sends an electronic product code (EPC) to the reader.
  • EPC electronic product code
  • the tag 1 After receiving the inventory ACK information from the reader, the tag 1 determines that the reader has received the temporary identification, and then the tag 1 sends real identification information to the reader, such as EPC, or a part of the EPC, or other identifiers (identifier, ID).
  • the reader may consider the EPC invalid.
  • the reader feeds back inventory negative acknowledgment (negative acknowledgment, NAK) information to the tag.
  • the reader sends inventory query repetition (QueryRep) information (or inventory query adjustment (QueryAdjust) information).
  • tags whose count value is not 0 will decrement the count value by 1.
  • Temporary ID (16-bit random number) information If the tag receives the inventory inquiry adjustment information from the reader, all tags reselect a random number as the initial value of the counter.
  • the reader receives the RN16 information fed back by a single tag in step 3 shown in Figure 4, it means that the inventory is normal; if multiple tags all feed back the RN16 information, the reader cannot solve the temporary identification of the tag, which means the tag conflicts. Then the reader will not send inventory ACK information, but directly send inventory QueryRep information, as shown in Figure 5, and continue the subsequent inventory process. On the other hand, if the reader does not receive the temporary identifier fed back by the tag on the uplink resource after sending the inventory Query information or the inventory QueryRep information, the reader waits for a period of time and then sends the inventory QueryRep information again.
  • T1 is the time interval between the end of the reader sending information and the tag starting to send information
  • T2 is the time interval between the end of the tag sending information and the reader starting to send information
  • T3 is If there is no tag response during the reader inventory, the reader needs to wait for an additional time interval
  • T4 is the time interval between the end of one message sent by the reader and the start of the next message (the middle tag has no feedback information).
  • the inventory process described above shows that the reader configures an uplink resource for the subset of tags that need to be inventoried, and the tags use the uplink resource to send identification information one by one, and try to avoid information conflicts in the uplink resource by using a counter initialized by a random number.
  • the current method of inventorying tags one by one has a long inventory period and low inventory efficiency.
  • the bandwidth of the uplink information sent by the tag is relatively narrow.
  • the uplink information may only occupy a bandwidth resource of a few kHz, but the actually available channel bandwidth for the uplink can be hundreds of kHz.
  • This application proposes Available resources in the channel bandwidth can be utilized, so that the channel bandwidth includes multiple uplink frequency domain resources for transmitting uplink information, and the multiple uplink frequency domain resources enable the inventory processes of different tags to be performed in parallel to improve inventory efficiency.
  • Fig. 6 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • the second device shown in FIG. 6 may be a reader, or the second device may be configured on the reader, and the first device may be a tag, or the first device may be configured on the tag.
  • the communication method may include but not limited to the following steps:
  • the second device sends first signaling to the first device, where the first signaling includes a plurality of inventory information, and each inventory information corresponds to at least one frequency domain resource among the plurality of candidate frequency domain resources.
  • the channel bandwidth includes multiple frequency domain resources for transmitting uplink information, and the multiple frequency domain resources may be referred to as multiple candidate frequency domain resources for uplink information.
  • the channel bandwidth is the maximum available uplink bandwidth, that is, the maximum available bandwidth for the first device to send uplink information to the second device.
  • the first device receives the first signaling from the second device.
  • the types of the plurality of inventory information in the first signaling may be the same or different.
  • the inventory information may be select information, inventory inquiry (Query) information, inventory confirmation (ACK) information, inventory inquiry repeat (QueryRep) information or inventory query adjustment (QueryAdjust) information, and other types of information.
  • the first signaling is public signaling.
  • a frequency domain resource corresponding to an inventory information may include response information for carrying the inventory information.
  • the frequency domain resource corresponding to an inventory information may include the frequency domain resource for which the inventory information confirms receipt of uplink information, for example, the inventory information may be inventory confirmation information , or may include the inventory information confirming that the uplink information has not been successfully received in the frequency domain, for example, the inventory information may be inventory negative acknowledgment (NACK) information, and the specific implementation may refer to the description below.
  • NACK inventory negative acknowledgment
  • Multiple communication devices including the first device can receive the first signaling, obtain multiple inventory information in the first signaling, and the communication devices confirm whether they need Responding to inventory information in the plurality of inventory information.
  • one communication device among the plurality of communication devices sends RN16 information before receiving the first signaling, and the RN16 information includes the temporary identification information of the communication device.
  • the communication device After the communication device receives the first signaling, it determines that the plurality of inventory information in the first signaling may include inventory confirmation information, and the inventory confirmation information confirms receipt of the temporary identification information of the communication device, then the The communication device may respond to the inventory confirmation information, and if the confirmation information corresponds to the frequency domain resource 1, the communication device may send the identity information to the second device on the frequency domain resource 1.
  • the first signaling may also include inventory query repetition information, if one of the multiple communication devices has not sent RN16 before, or has sent RN16 but the first signaling does not include inventory confirmation information, or includes Inventory confirmation information, but the inventory confirmation information does not include the RN16 previously sent by the communication device, then the communication device decreases the count value by 1 according to the inventory query repetition information after receiving the first signaling, and the count value is 0, then The communication device may send RN16 information to the second device.
  • the inventory query repetition information corresponds to the frequency domain resource 2
  • the communication device may send the RN16 information on the frequency domain resource 2 to feed back the temporary identification information of the communication device.
  • the channel bandwidth can include multiple frequency domain resources for transmitting uplink information, so that the reader can send multiplexed signaling containing multiple inventory information to the tag, so that different tags can use different frequency domain resources corresponding to different inventory information.
  • the multiple pieces of inventory information are in one-to-one correspondence with multiple pieces of third indication information in the first signaling, and one piece of third indication information is used to indicate the information type of the corresponding inventory information.
  • each inventory information in the plurality of inventory information includes a third indication information.
  • each inventory information in the plurality of inventory information includes a header (header) field
  • the header field of an inventory information includes a third indication information
  • the header field is a dedicated field carrying indication information (or called control information) in information (or signaling), and contains at least one indication information, so that the receiving device The indication information in the header field can correctly read the information (or signaling).
  • the third indication information may be logic channel identifier (logic channel identifier, LCID) information.
  • the signaling format of the first signaling may be as shown in FIG. 7, the first signaling includes n inventory information, and each inventory information may be a medium access control (medium access control, MAC) control element (control element, CE), each inventory information includes a MAC header field, and a MAC header field includes LCID information (that is, an example of the third indication information), and the LCID information is used to indicate the information type of the inventory information.
  • the MAC header field in the inventory information 1 includes LCID1 information, and the LCID1 information is used to indicate the information type of the inventory information 1.
  • the inventory information 1 also includes an information field 1, and the information field 1 includes the information of the inventory information 1. information.
  • the MAC header field in inventory information 2 includes LCID2 information, and the inventory information 2 further includes information field 2; the MAC header field in inventory information n includes LCIDn information, and the inventory information n further includes information field n.
  • the MAC header field of each inventory information may further include one or more reserved bits (marked as R in FIG. 7 ). It should be noted that the information types of the inventory information indicated by the LCID fields of different inventory information in the first signaling may be the same or different, and the same type of inventory information may have different corresponding frequency domain resources.
  • the first signaling may be as shown in FIG. 8 , the first signaling includes two pieces of inventory information, one piece of inventory information may be inventory confirmation information, and the MAC header field of the inventory confirmation information includes LCID1 information, and the LCID1 information is inventory confirmation information
  • the LCID of the corresponding logical channel after receiving the first signaling, the first device may determine the inventory information including the LCID1 information as inventory acknowledgment (ACK) information according to the LCID1 information.
  • the inventory confirmation information may be used to confirm the identification information (such as RN16) received by the second device.
  • Another inventory information in the first signaling may be inventory query repetition (QueryRep) information
  • the MAC header field of the inventory query repetition information includes LCID2 information
  • the LCID2 information is the LCID of the logical channel corresponding to the inventory query repetition information
  • a device may determine, according to the LCID2 information, that the inventory information including the LCID2 information is inventory query repetition information.
  • the communication device whose count value is not 0 may decrement the count value by 1 after receiving the inventory query repetition information. But the present application is not limited thereto.
  • the first signaling includes a header field
  • each piece of inventory information includes a piece of third indication information.
  • the first signaling includes a header field
  • each inventory information in the first signaling includes a third indication information
  • the inventory information 1 in the first signaling includes the third indication information 1
  • the third indication information 1 is used to indicate the information type of the inventory information 1
  • the inventory information 2 includes the third indication information 2
  • the third indication information 2 is used to indicate the information type of the inventory information 2
  • the inventory information in the first signaling includes third indication information n, where the third indication information n is used to indicate the information type of the inventory information n.
  • the first signaling may be as shown in FIG. 10, the first signaling includes 1 header field and 2 pieces of inventory information, where the third indication information in each piece of inventory information includes 3 bits, the Different values of the 3 bits indicate different information types of the inventory information. For example, “000” indicates that the information type is inventory inquiry; "001" indicates that the information type is inventory confirmation; “010” indicates that the information type is inventory inquiry repetition; “011” indicates that the information type is inventory inquiry adjustment; "100” indicates the information type Negative confirmation for inventory.
  • the first device After the first device receives the first signaling as shown in Figure 10, according to the 3-bit indication "001" of the third indication information in the first inventory information, it can determine that the inventory information is inventory confirmation information, and the inventory confirmation information The information content of can be contained in information field 1.
  • the first device may also determine that the inventory information is inventory inquiry information according to the 3-bit indication “000” of the third indication information in the second inventory information, and the information content of the inventory inquiry information may be included in the information field 2 .
  • the header field in the first signaling may include LCID information, and the LCID information may indicate that the first signaling includes multiple inventory information, or the LCID information indicates a logical channel identifier, and the logical channel identifier It may indicate that the first signaling includes multiple pieces of inventory information (or indicate that the first signaling is multiple information multiplexing signaling).
  • the header field may also include at least one reserved bit (denoted as R in FIG. 10 ).
  • the first signaling includes a header field
  • the header field includes a plurality of third indication information
  • the plurality of third indication information corresponds to the plurality of inventory information in order of arrangement.
  • the header field of the first signaling includes LCID information, and 4 third indication information are included after the LCID information, and each 3 bits is a third indication information, and the 4 third indication information and the header field
  • the following four pieces of inventory information correspond to each other sequentially according to the order in which they are arranged in the first signaling.
  • the 3 bits of the first third indication information are "010", it indicates that the first inventory information (that is, inventory information 1) in the first signaling corresponding to the third indication information is inventory inquiry repetition information;
  • the 3 bits are "001", indicating that the corresponding second inventory information (that is, inventory information 2) is inventory confirmation information;
  • the third 3 bits are also "001”, indicating that inventory information 3 is inventory confirmation information, and the inventory information 2
  • the inventory information 3 may be inventory confirmation information corresponding to different frequency domain resources;
  • the fourth 3 bits are "100", indicating that the inventory information 4 is inventory negative confirmation information.
  • the first signaling may further include second indication information, where the second indication information is used to indicate a first quantity, where the first quantity is the quantity of inventory information included in the first signaling.
  • the first device may determine the quantity of inventory information included in the first signaling according to the first quantity.
  • the 2 bits after the LCID information are the second indication information
  • the 2 bits of the second indication information are used to indicate the quantity of the third indication information included after the second indication information.
  • the 2 bits are "00" indicating that the quantity is 1, "01” indicating that the quantity is 2, "10” indicating that the quantity is 3, and "11” indicating that the quantity is 4.
  • the first device After the first device receives the first signaling as shown in Figure 11A, it determines that the first number is 4 according to the second indication information indicating "11" in the first signaling, so that it can be determined that the first signaling includes 4 pieces of third indication information and 4 pieces of inventory information, that is, the first device may determine that the 12 bits after the second indication information are 4 pieces of third indication information according to the first quantity.
  • the first device may respectively determine information types of the four pieces of inventory information according to the four pieces of third indication information.
  • the length of the information field of the inventory information may be determined based on the information type of the inventory information.
  • the first device may determine the information type of the inventory information corresponding to the third indication information, and based on the information type indicated by the third indication information, the first device may further determine the inventory information corresponding to the third indication information.
  • the length of the info field in the message is a fixed value.
  • the length of the information field in the first type of inventory information is K bits
  • the length of the information field in the second type of inventory information is L bits
  • the first device may determine that the information type of the corresponding inventory information is the second type based on the third indication information
  • the The length of the information field in the inventory information is L bits.
  • the first signaling may further include a length indication field corresponding to each inventory information, and one inventory information length indication field is used to indicate the length of the information field in the corresponding inventory information.
  • the length indication field corresponding to the inventory information may be included in the header field in the first signaling. Alternatively, the length indication field corresponding to the inventory information may be included before each inventory information in the first signaling.
  • the first device may determine the length of the information field in the inventory information following the length indication field (that is, the inventory information corresponding to the length indication field) based on a length indication field.
  • this embodiment of the present application includes but is not limited to the foregoing manner of determining the length of the information field in the inventory information.
  • the multiple frequency domain resources included in the channel bandwidth may be predefined, or the second device may notify the first device of the multiple frequency domain resources included in the channel bandwidth.
  • the second device may send second information to the first device, where the second information is used to indicate multiple frequency domain resources that can be used for uplink information in the channel bandwidth.
  • the first device may determine the positions of the multiple frequency domain resources in the channel bandwidth.
  • the multiple frequency domain resources that may be indicated by the second information may be all frequency domain resources included in the channel bandwidth.
  • the multiple frequency domain resources indicated by the second information may be part of the frequency domain resources in the channel bandwidth, and the multiple frequency domain resources indicated by the second information may be the first device (or the device group in which the first device is located) ) of available frequency domain resources.
  • Each piece of inventory information in the first signaling may correspond to at least one frequency domain resource in the multiple frequency domain resources.
  • the correspondence between inventory information and frequency domain resources in the first signaling may include but not limited to the following implementation manners.
  • the plurality of inventory information is sequentially corresponding to the plurality of frequency domain resources according to the order of frequency according to the arrangement sequence in the first signaling.
  • the channel bandwidth includes 2 frequency domain resources
  • the first signaling includes 2 inventory information
  • the 2 inventory information is arranged in the order of the first signaling and the 2 frequency domain resources according to the frequency from low to high
  • the order or the order from high to low corresponds to each other.
  • the lowest frequency of frequency domain resource 1 is lower than the lowest frequency of frequency domain resource 2 .
  • the two pieces of inventory information correspond to the two frequency domain resources in the order of frequency from low to high according to the order in which they are arranged in the first signaling, and the first piece of inventory information in the first signaling corresponds to a frequency with a lower frequency.
  • domain resource 1 and the second inventory information corresponds to frequency domain resource 2 with a higher frequency.
  • this implementation manner A may be implemented in combination with the foregoing implementation manner 2 of information type indication, and each third indication information in the first signaling corresponds to a frequency domain resource.
  • the multiple pieces of third indication information in the first signaling correspond to the multiple frequency domain resources of the channel bandwidth in sequence according to the order of arrangement in the first signaling.
  • the channel bandwidth may include 4 frequency domain resources
  • the first signaling includes 4 third indication information
  • the 4 third indication information may correspond to the 4 frequency domain resources one by one
  • the four pieces of third indication information are sequentially corresponding to the four frequency domain resources according to the order of arrangement in the first signaling in order of frequency from low to high.
  • frequency domain resource 1 to frequency domain resource 4 are in order from low to high in frequency
  • the first third indication information "010" corresponds to frequency domain resource 1
  • the third indication information indicates the information type of inventory information 1 , indicating that the frequency domain resource corresponding to the inventory information 1 is frequency domain resource 1.
  • a communication device that needs to respond to the inventory information 1 may send response information to the inventory information 1 on the frequency domain resource 1 corresponding to the inventory information 1 .
  • the inventory information 1 may be inventory confirmation information, and the communication device responding to the inventory confirmation information may send identity information for responding to the inventory information 1 on the frequency domain resource 1 .
  • the inventory information 1 may be inventory inquiry information. If a communication device receives the inventory inquiry information and the count value is reduced by 1 and then becomes 0, then the communication device responds to the inventory inquiry information and, in response to the inventory inquiry information, RN16 information is sent on frequency domain resource 1.
  • an indication value of the third indication information may indicate whether the inventory information corresponding to the corresponding frequency domain resource is included in the first signaling.
  • the third indication information includes 3 bits, and when the 3 bits are "000", it indicates that the inventory information corresponding to the corresponding frequency domain resource is not included in the first signaling.
  • the channel bandwidth includes 4 frequency domain resources
  • the header field in the first signaling may include 4 third indication information corresponding to the 4 frequency domain resources in sequence, such as the 4
  • the first third indication information is 12 bits after the LCID information, wherein the first third indication information indicates "010" indicating that the first inventory information in the first signaling is inventory query repeat information, according to the third indication information is the third indication information arranged first among the four third indication information, it indicates that the frequency domain resource corresponding to the inventory query repetition information is frequency domain resource 1, if a communication device (such as the first device) according to the inventory Inquiring about repeated information, after decrementing the count value by 1, the count value is 0, then the communication device can send the temporary identification information of the communication device on the frequency domain resource 1 corresponding to the inventory inquiry repeated information.
  • the second and third third indication information in the first signaling indicate "000", which means that the first signaling does not contain inventory information corresponding to frequency domain resource 2 and frequency domain resource 3, and the fourth The third indication information indicates “001”, indicating that the second inventory information is inventory confirmation information, and the inventory confirmation information corresponds to the resource 4 in the frequency domain.
  • the inventory confirmation information corresponding to the frequency domain resource 4 may indicate that the second device has received the RN16 information in the frequency domain resource 4, the inventory confirmation information may include the temporary identification information of the communication device in the RN16 information, and the information is sent on the frequency domain resource 4.
  • the communication device of the temporary identification information may resend the identity information (such as the EPC of the communication device) on the frequency domain resource 4 based on the inventory confirmation information.
  • one piece of inventory information among the plurality of pieces of inventory information includes a piece of first indication information, where the first indication information is used to indicate the frequency domain resource corresponding to the piece of inventory information.
  • each inventory information in the first signaling shown in FIG. 13 may include a header field, and the header field may include third indication information (LCID information as shown in FIG. 13 ) for indicating the information type of the inventory information. ), and each inventory information further includes first indication information, which is used to indicate the frequency domain resource corresponding to the inventory information.
  • the inventory information 1 includes first indication information 1
  • the first indication information 1 may indicate one or more frequency domain resources corresponding to the inventory information 1.
  • the first indication information 2 in the inventory information 2 may indicate one or more frequency domain resources corresponding to the inventory information 2 .
  • the first indication information n in the inventory information n may indicate one or more frequency domain resources corresponding to the inventory information n.
  • the first signaling shown in FIG. 14 may include a header field, and each inventory information may include a first indication information, which is used to indicate one or more frequency domain resources corresponding to the inventory information.
  • the header field in the first signaling as shown in FIG. 14 may include multiple third indication information indicating the information type of each inventory information, or each inventory information may include one third indication information. This is not limited.
  • the first indication information may include 2 bits, and the 2 bits may indicate one frequency domain resource among the 4 frequency domain resources corresponding to the inventory information, and the frequency domain resource corresponding to the inventory information is used to bear the response of the inventory information information. For example, “00” may indicate frequency domain resource 1, "01” may indicate frequency domain resource 2, "10” may indicate frequency domain resource 3, and "11” may indicate frequency domain resource 4.
  • the first indication information may include 4 bits, wherein each 2 bits indicates one of the 4 frequency domain resources corresponding to the inventory information, and the first indication information may indicate 2 frequency domain resources corresponding to the inventory information. resource.
  • each piece of inventory information may further include indication information for indicating the number of frequency domain resources corresponding to the inventory information, and the first device may determine that the inventory information corresponds to The number of bits included in the first indication information. For example, if the inventory information 1 indicates that the number of frequency domain resources corresponding to the inventory information is 1, then the inventory information 1 may include 2 bits, and the 2 bits indicate a frequency domain resource. If the inventory information k indicates that the If the number of frequency domain resources corresponding to the inventory information is 2, the inventory information k may include 4 bits, where every 2 bits indicates a frequency domain resource. But the present application is not limited thereto.
  • a piece of first indication information may be a bit group (such as a bitmap (bitmap)), and one bit in the bit group corresponds to one frequency domain resource among multiple frequency domain resources in the channel bandwidth, and is used to indicate Whether the inventory information corresponds to the frequency domain resource corresponding to this bit.
  • bitmap bitmap
  • the first indication information 1 in the first signaling in FIG. 13 or FIG. 14 is a 4-bit bitmap, and the 4 bits correspond to 4 frequency domain resources in the channel bandwidth, wherein one bit "0" indicates that the inventory information 1 does not correspond to the frequency domain resource corresponding to this bit.
  • the bitmap of the first indication information 1 is "0110", wherein the first bit corresponds to the frequency domain resource 1, and the bit indicates "0" indicating that the inventory information 1 does not correspond to the frequency domain resource 1, and the second bit in the bitmap
  • the first bit corresponds to frequency domain resource 2
  • the third bit corresponds to frequency domain resource 3
  • the two bits both indicate "1", indicating that inventory information 1 corresponds to frequency domain resource 2 and frequency domain resource 3
  • the fourth bit A bit indicating "0" indicates that the inventory information 1 does not correspond to the frequency domain resource 4 .
  • the first device may determine, based on the first indication information 1 , that the frequency domain resource corresponding to the inventory information 1 is the frequency domain resource 2 and the frequency domain resource 3 .
  • the first indication information corresponding to other inventory information may also indicate the frequency domain resources corresponding to the inventory information in this manner, which will not be repeated here for brevity.
  • the first signaling may further include the aforementioned second indication information used to indicate the first quantity.
  • the second indication information is in the header field of the first signaling.
  • the first device can determine the inventory information contained in the first signaling according to the first quantity. quantity, and each inventory information in the first signaling further includes a first indication information and a third indication information, and the first device determines the frequency domain resource corresponding to the inventory information according to the first indication information of each inventory information , determining the information type of the inventory information according to the third indication information.
  • Figure 16 shows a specific example.
  • the second indication information in the header field of the first signaling indicates "10" indicating that the first signaling includes two pieces of inventory information, and the first indication information in the first signaling Contains 2 bits.
  • the 2 bits indicate the index of the frequency domain resource, for example, "00" indicates the frequency domain resource 1, "01” indicates the frequency domain resource 2, "10” indicates the frequency domain resource 3, and "11" If frequency domain resource 4 is indicated, the first indication information in inventory information 1 indicates “01” indicating that inventory information 1 corresponds to frequency domain resource 2, and the first indication information in inventory information 2 indicates "10" indicates that inventory information 2 corresponds to frequency domain resource 4. domain resource 3.
  • the 2 bits of the first indication information are bitmaps, if the first bit corresponds to frequency domain resource 1, and the second bit corresponds to frequency domain resource 2, then the first indication information in the inventory information 1 indicates "01" It indicates that the inventory information 1 corresponds to the frequency domain resource 2, and the first indication information in the inventory information 2 indicates "10" indicating that the inventory information 2 corresponds to the frequency domain resource 1.
  • the third indication information in the inventory information indicates the type of the inventory information. For example, the third indication information in the inventory information 1 indicates "010" which can indicate that the inventory information 1 is inventory query repeat information, and the third indication information in the inventory information 2 The indication information indicating "100" may indicate that the inventory information 1 is inventory negative confirmation information. But the present application is not limited thereto.
  • the first signaling further includes a first bit group, multiple bits in the first bit group correspond to the multiple frequency domain resources, and one bit in the first bit group is used to indicate that the first bit group
  • the one signaling includes the inventory information corresponding to the frequency domain resource corresponding to the one bit, or is used to indicate that the first signaling does not include the inventory information corresponding to the frequency domain resource corresponding to the one bit.
  • the first signaling includes a header field, and the first bit group may be included in the header field of the first signaling.
  • the first bit group is located after the LCID information, for example, the first bit group
  • the bit group is a 4-bit bitmap, and each bit corresponds to one of the 4 frequency domain resources.
  • the 4 bits correspond to frequency domain resource 1 to frequency domain resource 4 in sequence.
  • 4 bits are "1011"
  • the first bit indicates “1”, indicating that the frequency domain resource corresponding to the first inventory information in the first signaling is frequency domain resource 1
  • the second bit indicates "0”, indicating that the first signaling does not include the frequency domain resource
  • the third bit and the fourth bit both indicate "1", indicating that the second inventory information and the third inventory information in the first signaling correspond to frequency domain resource 3 and frequency domain resource 4 respectively .
  • each piece of inventory information in the first signaling shown in FIG. 17 may include a piece of first indication information and a piece of third indication information for indicating a type of information.
  • multiple pieces of third indication information corresponding to multiple pieces of inventory information may be included in the header field of the first signaling, and the present application combines the multiple third pieces of indication information with the first bit group in the header field.
  • the sort order is not limited.
  • Embodiment D based on different information types of the inventory information, the inventory information in the first signaling may or may not include the first indication information.
  • the inventory information whose information type is an inquiry type may not include the first indication information, and the inventory information of an inquiry type may include inventory inquiry information, inventory inquiry repetition information, and inventory inquiry adjustment information.
  • the frequency domain resources corresponding to the inquiry type inventory information in the first signaling may be frequency domain resources other than the frequency domain resources corresponding to other types of inventory information (such as inventory confirmation information and inventory negative information) in the first signaling.
  • the inquiry-type inventory information may not include the first indication information.
  • the inventory information of information types other than the inquiry type includes first indication information, such as inventory confirmation information and inventory negative confirmation information.
  • the first device may determine the frequency domain resource corresponding to the inventory information including the first indication information according to the inventory information including the first indication information in the first signaling, and the first The frequency domain resources other than the frequency domain resources indicated by the indication information are frequency domain resources corresponding to the inventory information not including the first indication information.
  • the channel bandwidth includes 4 frequency domain resources
  • the first signaling includes two inventory confirmation information
  • each inventory confirmation information corresponds to a first indication information, where one first indication information indicates the corresponding inventory confirmation information Corresponding to frequency domain resource 1, another first indication information indicates that corresponding inventory confirmation information corresponds to frequency domain resource 3.
  • one of the inventory confirmation messages confirms the RN16 information 1 received by the second device on the frequency domain resource 1
  • the other inventory confirmation message confirms the RN16 information 2 received by the second device on the frequency domain resource 3 .
  • a communication device sends the RN16 information 1 on the frequency domain resource 1 before receiving the first signaling, then the communication device can feed back the information to the second device on the frequency domain resource 1 after receiving the first signaling Identity information (such as EPC), or a communication device sends the RN16 information 2 on the frequency domain resource 3 before receiving the first signaling, then the communication device can be in the frequency domain after receiving the first signaling
  • the resource 3 feeds back identity information (such as EPC) to the second device.
  • the first signaling also includes an inventory inquiry repetition information, including 3 inventory information in total.
  • the first signaling may not include the first indication information corresponding to the inventory inquiry repetition information, and the frequency domain resources corresponding to the inventory inquiry repetition information are frequency domain resources other than the frequency domain resources corresponding to the two inventory confirmation information in the first signaling.
  • Domain resources that is, the inventory repeat query information corresponds to frequency domain resource 2 and frequency domain resource 4. Since non-inquiry inventory information (such as inventory confirmation information) requires the corresponding communication device to send response information on the corresponding frequency domain resources, therefore, the inquiry inventory information can be outside the frequency domain resources corresponding to the non-inquiry inventory information. corresponding to the frequency domain resources.
  • a communication device If a communication device has a count value of 0 after receiving the inventory information of the inquiry type, it can send RN16 information on one of the frequency domain resources corresponding to the inventory information.
  • the communication device may randomly select a frequency domain resource to send the RN16 information.
  • the frequency domain resource corresponding to the inventory confirmation information may be the frequency domain resource on which the second device confirms the receipt of the temporary identification information, and it may be stipulated that a communication device (such as a tag) can only be in one frequency domain resource during the inventory process.
  • the uplink information is sent on the resource.
  • a tag sends RN16 information on the frequency domain resource 2
  • the communication device will also send the identity information on the frequency domain resource 2 after receiving the inventory confirmation information.
  • the present application is not limited thereto.
  • the first signaling includes inventory confirmation information
  • the inventory confirmation information may correspond to multiple frequency domain resources, and the multiple frequency domain resources include information confirming that RN16 has been received frequency domain resources, and the frequency domain resources used by the communication device to send identity information.
  • one piece of inventory confirmation information corresponds to 2 frequency domain resources.
  • the first indication information may include 4 bits, the first 2 bits are used to indicate the frequency domain resources that confirm that the RN16 information has been received, and the last 2 bits are used to indicate that the communication device A frequency domain resource for sending identity information.
  • the identification information in the received RN16 information can be included in the inventory confirmation
  • the RN16 information includes the identification information of the first device
  • the information field in the inventory confirmation information includes the first The identification information of a device
  • the first device determines that the second device has received the RN16 information sent by it, then the first device sends the identity information on frequency domain resource 1 indicated by the last two bits "00".
  • the frequency domain resource corresponding to the inquiry type inventory information is a frequency domain resource other than the frequency domain resource 1 indicated in the inventory confirmation information to send the identity information.
  • the frequency domain resource corresponding to the inventory information of the query type may be the frequency domain resource for sending the response information of the inventory information of the query type by the communication device.
  • the inventory information in the first signaling may also be negative inventory (NACK) information
  • the frequency domain resource corresponding to the inventory negative information may be the frequency domain resource for which the second device fails to obtain the identity information.
  • the communication device sends the EPC on the frequency domain resource A to the second device, but the second device fails to decode the EPC, for example, the CRC check fails.
  • the second device may send inventory negative information to the communication device, and the frequency domain resource corresponding to the inventory negative information is frequency domain resource A, indicating that the second device has failed to solve the EPC in the frequency domain resource A.
  • the communication device that sent the EPC can determine that the second device has not successfully received the EPC sent by it, and then the communication device will participate in the next round of inventory.
  • the first device sends first information on the first frequency domain resource, where the first information is response information to the first inventory information.
  • the second device receives the first information from the first device in the first frequency domain resource.
  • the first inventory information may be inventory inquiry information, and the inventory inquiry information may correspond to the first frequency domain resource, or the inventory inquiry information may correspond to multiple frequency domain resources, and the multiple frequency domain resources include the first frequency domain resource, after the first device receives the first signaling, based on the inventory query information, the count value is decremented by 1 and the count value is 0, then the first device sends RN16 information on the first frequency domain resource (that is, the first An example of a message) in response to an inventory query message from the second device. If the inventory query information corresponds to multiple frequency domain resources, the first device may randomly select a first frequency domain resource from among the multiple frequency domain resources to send the RN16 information.
  • the RN16 information includes identification information of the first device.
  • the first inventory information may also be other query-type inventory information, which is not limited in this application.
  • the first inventory information may be inventory confirmation information.
  • the first device Before receiving the first signaling, the first device sends RN16 information on the first frequency domain resource, where the RN16 information includes identification information of the first device.
  • the first device receives the first signaling, the inventory confirmation information indicates that the second device has received the identification information of the first device on the first frequency domain resource, then the first device sends the identity information on the first frequency domain resource (that is, the first message) in response to the inventory confirmation message of the second device.
  • the first signaling includes the second inventory information
  • the third device sends response information to the second inventory information on the second frequency domain resource.
  • the channel bandwidth divides multiple frequency domain resources used to carry uplink information, so that multiple devices can execute the inventory process in parallel.
  • the utilization rate of resources can be improved, the probability of conflict of uplink information resources and the time delay of inventory process can be reduced, and the efficiency of inventory can be improved.
  • the first signaling may include a plurality of query-type inventory information
  • the communication device whose count value is not 0 determines the number of times K that the count value is decremented by 1 based on the number K of query-type inventory information in the first signaling , or determine the count value minus K.
  • the communication device sends RN16 information.
  • the communication device whose count value is not 0 can determine to perform 2 deduction of the count value by 1 after receiving the first signaling. is 0, the communication device determines to send RN16 information to the second device.
  • the communication device whose count value is not 0 decrements the count value by 2, and if the obtained count value is not a positive number, the communication device determines to send the RN16 information to the second device.
  • the inventory information of the plurality of inquiry types is arranged sequentially in the first signaling and corresponds to different frequency domain resources. If the communication device decrements the count value by 1 for the first time and the count value is 0, the communication device Send RN16 information on the frequency domain resource corresponding to the inventory information of the first inquiry type; if the count value is 0 after decrementing the count value by 1 for the second time, Send RN16 information on domain resources, and so on.
  • the plurality of inquiry-type inventory information corresponds to a plurality of frequency-domain resources.
  • the plurality of inquiry-type inventory information does not include the first indication information, which corresponds to a plurality of frequency-domain resources other than non-inquiry-type inventory information.
  • the communication device that sends the RN16 information may randomly select one frequency domain resource from the multiple frequency domain resources corresponding to the inventory information of multiple inquiry types to send the RN16 information.
  • the number of inventory information of multiple query types may be less than the number of corresponding frequency domain resources, which can reduce the probability of collision, but the present application is not limited thereto.
  • the query-type inventory information corresponds to multiple frequency domain resources.
  • a communication device among the plurality of communication devices may decrease the count value of the counter according to the number of frequency domain resources in the plurality of frequency domain resources.
  • the number of frequency domain resources among the plurality of frequency domain resources is 4, and if the count value of a communication device is reduced by 1 and the count value is 0, then the communication device ranked first among the 4 frequency domain resources in order of frequency Send RN16 information on four frequency domain resources; if the count value of another communication device is reduced by 2 and the count value is 0, then the communication device sends RN16 on the second frequency domain resource arranged in frequency order among the four frequency domain resources information.
  • the RN16 information sent by the communication device whose count value is minus 3 can be carried, and on the fourth frequency domain resource, the count value can be carried after the count value is minus 4.
  • the count value is 0 RN16 information sent by the communication device.
  • the present application is not limited thereto, and the communication device may also determine the corresponding frequency domain resources for sending RN16 information according to the order of frequency resource identification information from large to small or from small to large, or based on other methods.
  • the communication device sends RN16 information on the first and second frequency domain resources
  • the count value of a communication device is decremented by 2
  • the count value is 0, the The communication device sends RN16 information on the third and fourth frequency domain resources.
  • the present application is not limited thereto.
  • the first signaling contains only one query type inventory information, and the query type inventory information corresponds to multiple frequency domain resources
  • the first signaling can be an indication information, which is used to indicate the way to send RN16 information .
  • the indication information includes 1 bit, and when the 1 bit is 0, the communication device whose count value is 0 after the count value is decremented by 1 sends RN16 information. When the 1 bit is 1, the communication device whose count value is 0 after the count value is decremented by 1 and the communication device whose count value is 0 after the count value is decremented by 2 both send RN16 information.
  • These communication devices may randomly select a frequency domain resource among multiple frequency domain resources corresponding to the inventory information of the query type to send the RN16 information.
  • the indication information may not be included in the first signaling, and two types of inquiry-type inventory information may be defined based on the way of responding to the inventory information, and one type of inquiry-type inventory information needs to be decremented by 1 from the count value
  • the communication device whose final count value is 0 responds to the inventory information and sends RN16 information; another type of inquiry type inventory information can be decremented by 1 from the communication device whose count value is 0, and the count value is decremented by 2 after the count value is
  • the communication device of 0 sends RN16 information in response to the inventory information.
  • the inventory information of the two types of inquiry types may be indicated by third indication information, for example, may be indicated by different LCID information.
  • the value by which the count value of the communication device that needs to respond can be determined based on the specific implementation.
  • the communication devices whose value is 0 after subtracting 2 all respond to the inventory information of this type of query are described as an example, but the present application is not limited thereto.
  • the second device can perform an inventory of a communication device group, and the inventory information of the communication device group can be multiplexed (or carried in) the same signaling (such as the first signaling), and the communication device A communication device in the group may send uplink information on one frequency domain resource among multiple frequency domain resources. information, and after a frequency domain resource is selected in the inventory process, all uplink information is sent on the frequency domain resource. Or the communication device may determine the frequency domain resource for sending uplink information based on the indication of the inventory information. This application is not limited to this.
  • the channel bandwidth includes multiple frequency domain resources for sending uplink information
  • the second device is a reader.
  • the reader sends inventory query information to a tag group
  • the count value of tag 1 in the tag group is 0, then tag 1 can send RN16 information on frequency domain resource 1 among multiple frequency domain resources, and the RN16 information
  • the temporary identification information of the first device is included.
  • the reader receives the RN16 information on the frequency domain resource 1, it sends the first signaling.
  • the first signaling includes two pieces of inventory information, one of which is the inventory confirmation information, and the inventory confirmation information is used to instruct the second device to confirm in the After receiving the temporary identification information of the first device on the frequency domain resource 1, the tag 1 sends EPC information on the frequency domain resource 1 in response to the inventory confirmation information after receiving the first signaling.
  • the first signaling also includes inventory inquiry repetition information. After receiving the first signaling, the tags whose count value is not 0 in the tag group will decrement the count value by 1 based on the inventory inquiry repeat information, wherein the count value of tag 2 If it is 0 after subtracting 1, tag 2 can send RN16 information on frequency domain resource 2.
  • the query information sent by the reader may correspond to one or more frequency domain resources, and the one or more frequency domain resources include frequency domain resource 1, and the tag 1 selects the frequency domain resource from the one or more frequency domain resources 1.
  • Sending uplink information may be randomly selected, for example, but the present application is not limited thereto.
  • the tag can randomly select a frequency domain resource among multiple frequency domain resources to send RN16 information. If the count value of multiple tags in the tag group is 0, the probability of tag resource collision can be reduced. Improve inventory efficiency.
  • the inventory inquiry repetition information in the first signaling may correspond to one or more frequency domain resources.
  • the first signaling includes first indication information corresponding to the inventory inquiry repetition information, and the first indication information indicates the inventory inquiry repetition information.
  • Tag 2 may select frequency domain resource 2 from the frequency domain resources corresponding to the inventory query repetition information to send RN16 information. It realizes that different tags can execute the inventory process at the same time, and improves the efficiency of the reader's inventory of tags.
  • the reader can carry multiple inventory information of the tag group in the same signaling and send it to the tag group, and for different tag groups, the second device can send the inventory information of different tag groups at different times .
  • the second device may perform an inventory of multiple communication device groups, where each communication device group corresponds to one or more frequency domain resources.
  • the inventory information of different communication device groups may be multiplexed (or carried) in one signaling (such as the first signaling).
  • the communication devices in each communication device group send uplink information on the frequency domain resources corresponding to the communication device group.
  • the first signaling may include inventory information of one or more communication device groups. Specifically, a communication device in each communication device group may determine whether it is the inventory information of the communication device group according to frequency domain resources corresponding to the inventory information.
  • the communication devices in the plurality of communication device groups are configured with a corresponding relationship between the group number of the communication device group to which the communication device belongs and the frequency domain resource, for example, communication device group 1 corresponds to frequency domain resource 1 and frequency domain resource 2, Communication device group 2 corresponds to frequency domain resources 3 and 4 .
  • the communication devices in the communication device group 1 may determine the inventory information as the inventory information of the communication device group 1 based on the frequency domain resource 2 corresponding to the inventory information.
  • the communication devices in the communication device group 2 may determine that the inventory information is not the inventory information of the communication device group 2 .
  • the second device may notify the communication devices in the communication device group of the frequency domain resources corresponding to the communication device group through notification information (for example, selection (select) information).
  • notification information for example, selection (select) information.
  • the channel bandwidth includes multiple frequency domain resources for sending uplink information
  • the second device is a reader
  • the frequency domain resource used by tag group 1 for sending uplink information is frequency domain resource 1
  • the frequency domain resource used by tag group 2 is frequency domain resource 1.
  • the frequency domain resource used for sending uplink information is frequency domain resource 2.
  • the reader sends signaling 1 (that is, an example of the first signaling), and the signaling 1 includes inventory inquiry information 1 and inventory inquiry information 2, wherein inventory inquiry information 1 corresponds to frequency domain resource 1, and inventory inquiry information 2 corresponds to frequency domain resource 1.
  • the tags in tag group 1 can determine that the inventory query information 1 in signaling 1 is the inventory information of the tag group 1, and the tag group 1 contains a tag with a count value of 0, then the tag in the frequency domain resource 1 to send RN16 information, the tag 1 in the tag group 2 can determine that the inventory query information 2 is the inventory information of the tag group 2, and the tag group 2 contains the tag 2 with a count value of 0, then the tag in the frequency domain If the tag group 1 or tag group 2 does not contain a tag with a count value of 0, the corresponding frequency domain resource does not carry the RN16 information.
  • the reader After the reader receives RN16 information on frequency domain resource 1 and frequency domain resource 2, it sends signaling 2 (that is, another example of the first signaling), which may include the inventory corresponding to frequency domain resource 1.
  • Acknowledgment information 1 ie ACK1
  • inventory acknowledgment information 2 ie ACK2
  • Each group of tags determines the inventory information belonging to the tag group based on the frequency domain resources corresponding to the inventory information and sends corresponding response information on the corresponding frequency domain resources. For example, tag 1 sends the EPC information of tag 1 in response to inventory confirmation information 1, and tag 2 sends the EPC information of tag 2 in response to inventory confirmation information 2.
  • the communication device judges whether the inventory information is the inventory information of the communication device group based on whether the frequency domain resource corresponding to the inventory information is consistent with the frequency domain resource corresponding to the communication device group.
  • the inventory information may include the identification information of the communication device group. After the communication device receives the inventory information, it may determine whether the inventory information is the communication device group identification information based on the inventory information. Inventory information for the device group.
  • the reader can send multiple inventory information in one signaling, and each inventory information corresponds to at least one frequency domain resource, so that multiple tags can execute the inventory process in parallel on different frequency domain resources, improving The utilization rate of resources is improved, the time delay of inventory is reduced, and the efficiency of reader inventory is improved.
  • the first embodiment of the present application uses inventory information as an example to illustrate that when the channel bandwidth includes multiple frequency domain resources, multiple downlink information can be multiplexed in the same signaling (such as the first signaling).
  • the technical solution provided by this application is not limited to inventory information, and non-inventory-related information (such as read (read) information, write (write) information, etc.) can also be multiplexed in the same signaling in a similar manner.
  • Each piece of information in (which may be inventory information or non-inventory-related information) may correspond to at least one frequency domain resource in the channel bandwidth.
  • FIG. 19 is another schematic flowchart of the communication method provided by the embodiment of the present application.
  • the second device shown in FIG. 19 may be a reader, or the second device may be configured on the reader, and the first device may be a tag, or the first device may be configured on the tag.
  • the method may include, but is not limited to, the following steps:
  • the second device sends second information and inventory information, where the second information is used to indicate multiple frequency domain resources in the channel bandwidth.
  • the first device receives the second information and the inventory information.
  • the inventory information may be inventory inquiry information, inventory confirmation information, inventory inquiry repeat information, or inventory inquiry adjustment information.
  • the inventory information is used for the inventory of the communication device, and the communication device includes a first device, which may be a tag.
  • the second information and the inventory information may be carried in the same signaling sent by the second device, or the second information and the inventory information may be carried respectively in two signalings sent by the second device at different times. This application is not limited to this.
  • the inventory information may be one of the plurality of inventory information in the above-mentioned first signaling, and the first signaling may also include second information, or the first signaling The second information is included in other signaling sent by the second device.
  • the present application is not limited thereto, and the inventory information may be carried in signaling that does not include other inventory information.
  • the channel bandwidth includes multiple frequency domain resources for transmitting uplink information.
  • the multiple frequency domain resources in the channel bandwidth indicated by the second information may be all frequency domain resources included in the channel bandwidth.
  • the multiple frequency domain resources indicated by the second information may be part of the frequency domain resources in the channel bandwidth, and the multiple frequency domain resources indicated by the second information may be the first device (or the device group in which the first device is located) ) of available frequency domain resources.
  • the first device may send uplink information on the multiple frequency domain resources.
  • the second information may indicate identification information of the multiple frequency domain resources, or the second information may indicate resource parameters of the multiple frequency domain resources.
  • the frequency domain resources included in the channel bandwidth may be preconfigured, or the second device notifies the first device of the frequency domain resources included in the channel bandwidth before the second information, and each frequency domain resource corresponds to a piece of identification information, or each A frequency domain resource is identified by an identification information.
  • the identification information may be an index (index or number, etc.), and the second information includes the identification information of each frequency domain resource in the plurality of frequency domain resources.
  • the first device may include The identification information of determines the plurality of frequency domain resources.
  • the second information includes the resource parameters of each frequency domain resource among the multiple frequency domain resources, such as the preset frequency of the frequency domain resource (such as the starting point frequency, the center point frequency or the ending point frequency), the frequency domain One or more of the width (such as the bandwidth of the frequency domain resource), the number of repetitions of information bits, or the number of repetitions of the transmission duration of one symbol.
  • the information bits obtained after encoding an information bit form a symbol
  • the transmission duration of a symbol is the transmission duration corresponding to an information bit, that is, the transmission duration of a coded bit obtained after encoding an information bit.
  • the first device determines the multiple frequency domain resources according to the resource parameters of each frequency domain resource in the second information.
  • the first device sends first identification information of the first device on the first frequency domain resource according to the inventory information.
  • the second device receives the first identification information on the first frequency domain resource.
  • the inventory information corresponds to at least one frequency domain resource among the plurality of frequency domain resources, wherein the at least one frequency domain resource includes the first frequency domain resource.
  • the first device selects the first frequency domain resource from the multiple frequency domain resources indicated by the second information to send the uplink information.
  • the first frequency domain resource may be randomly selected by the first device from multiple frequency domain resources.
  • the first device receives third information from the second device, where the third information is used to instruct the first device to transmit uplink information on the first frequency domain resource.
  • the third information is specifically used to instruct the first device group to transmit uplink information on the first frequency domain resource, where the first device group includes the first device.
  • all uplink information sent by the first device to the second device is carried on the first frequency domain resource.
  • the inventory information includes first indication information, and the first indication information is used to indicate the frequency domain resource corresponding to the inventory information.
  • the first indication information in the inventory information indicates the frequency domain resource corresponding to the inventory information, and the frequency domain resource carries the response information of the inventory information.
  • the first apparatus determines that it needs to respond to the inventory information, and then the first apparatus sends response information to the inventory information on the first frequency domain resource.
  • the inventory information may be inventory confirmation information, such as the first device sends RN16 information before receiving the inventory information, and the inventory confirmation information is used to indicate that the second device has received the RN16 information of the first device, such as the
  • the inventory confirmation information includes the temporary identification information sent by the first device. Then the first device sends identity information (that is, the identity information is an example of the first identification information), such as EPC information, on the first frequency domain resource in response to the inventory confirmation information.
  • the inventory confirmation information may not include the first indication information, and the first device may send RN16 information on the first frequency domain resource, then the first device may continue to use the first frequency domain resource after receiving the inventory confirmation information.
  • a frequency domain resource sends identity information. For example, it may be predetermined that the communication device sends different uplink information on the same frequency domain resource, so that the first device and the second device reach a consensus, and the second device receives the RN16 information of the first device on the first frequency domain resource, The identity information of the first device is received.
  • the inventory confirmation information includes first indication information, the first indication information indicates the first frequency domain resource, and the first frequency domain resource is used to transmit the response information of the inventory confirmation information, then the first device according to the first The indication information is to send the identity information on the first frequency domain resource.
  • the inventory information may be inventory inquiry information, inventory inquiry repeat information or inventory inquiry adjustment information
  • the first device subtracts 1 from the count value according to the inventory information, and the count value is 0, then the first device sends RN16 information
  • the RN16 information includes temporary identification information of the first device (that is, an example of first identification information), for example, a 16-bit random number that can be generated by the first device as the temporary identification information of the first device.
  • the first device may randomly select the first frequency domain resource from the multiple frequency domain resources indicated by the second information to send the RN16 information, or the inventory query information includes first indication information, and the first indication information indicates the The first frequency domain resource corresponding to the inventory query information, the first device sends the RN16 information on the first frequency domain resource, or the first indication information indicates multiple frequency domain resources corresponding to the inventory query information, and the multiple frequency domain resources
  • the domain resources include a first frequency domain resource, and the first device randomly selects the first frequency domain resource from the multiple frequency domain resources indicated by the first indication information to send the RN16 information.
  • the second device sends inventory confirmation information to the first device, where the inventory confirmation information includes at least one piece of identification information, and the at least one piece of identification information is the identification information received by the second device in confirming multiple frequency domain resources,
  • the at least one identification information includes the first identification information.
  • the first identification information is temporary identification information of the first device
  • the second device sends the inventory confirmation information after receiving the first identification information in the first frequency domain resource
  • the inventory confirmation information includes At least one identification information received on the plurality of frequency domain resources, if the second device receives the second identification information on the second frequency domain resource in addition to receiving the first identification information on the first frequency domain resource, then The inventory confirmation information also includes the second identification information received by the second frequency domain resource. If the second device does not receive (or fails to receive) the identification information on the third frequency domain resource, the inventory confirmation information does not include the identification information corresponding to the third frequency domain resource.
  • the inventory confirmation information may not include indication information of frequency domain resources.
  • the communication device may determine that the second device has confirmed receipt of the identification information sent by it, and the communication device may send the identity information to the second device; if the inventory confirmation information does not contain the identification information sent by the communication device, the communication The device determines that the identification information sent by the second device has not been received.
  • the inventory confirmation information includes a second quantity
  • the second quantity is the quantity of identification information included in the inventory confirmation information.
  • the first device may determine the length of the inventory confirmation message according to the second quantity.
  • the inventory confirmation information may further include fourth indication information, where the fourth indication information is used to indicate one frequency domain resource among the plurality of frequency domain resources corresponding to each identification information in the inventory confirmation information.
  • the fourth indication information may include but not limited to the following two indication methods:
  • the fourth indication information includes a second bit group (such as a bitmap (bitmap)), the multiple bits in the second bit group correspond to the multiple frequency domain resources one-to-one, and the bits in the second bit group One bit is used to indicate that the inventory confirmation information includes the identification information received on the frequency domain resource corresponding to the bit, or is used to indicate that the inventory confirmation information does not include the identification information received on the frequency domain resource corresponding to the bit. Identification information.
  • bitmap such as a bitmap (bitmap)
  • the inventory confirmation information may include the second bit group and n pieces of identification information as shown in FIG. 20 .
  • the second information indicates 4 frequency domain resources
  • the second bit group includes 4 bits, wherein the 4 bits correspond to the 4 frequency domain resources in sequence, and one bit indicating "1" indicates that the inventory confirmation information includes
  • the identification information received on the frequency domain resource corresponding to the bit indicates that "0" indicates that the inventory confirmation information does not include the identification information received on the frequency domain resource corresponding to the bit.
  • the 4 bits of the second bit group are "1011"
  • the first device may determine the number of identification information contained in the inventory confirmation information according to the number of bits indicating "1" in the second bit group.
  • the frequency domain resource for which the identification information is received for example, determine the first identification information in the inventory confirmation information according to the first bit indicating "1", that is, the identification information 1 is the frequency domain resource
  • the identification information received on resource 1 indicates that no identification information is received on frequency domain resource 2
  • the third bit indicating "1" indicates the second identification information in the inventory confirmation information ( That is, the third bit is the second bit indicating "1") is the identification information received on the frequency domain resource 3.
  • the third bit in the inventory confirmation information can be determined according to the fourth bit indicating "1".
  • the identification information is the identification information received on the frequency domain resource 4 .
  • the fourth indication information includes at least one indication field, and the at least one indication field in the inventory corresponds to the at least one identification information one by one, and one indication field is used to indicate the receipt of the identification information corresponding to the one indication field. frequency domain resources.
  • the inventory confirmation information may include n indication fields as shown in FIG. 21 and identification information corresponding to each indication field.
  • the second information indicates 4 frequency domain resources
  • the second device receives the first identification information sent by the first device in the first frequency domain resource, and receives the second identification information in the second frequency domain resource
  • the The inventory confirmation information includes 2 indication fields and 2 identification information, where indication field 1 can indicate the first frequency domain resource, if the index of the first frequency domain resource is 00, indication field 1 indicates 00, and indication field 1 corresponds to
  • the identification information is the first identification information, and after receiving the inventory confirmation information, the first device can determine that the second device has received the first identification information sent by it.
  • the inventory confirmation information also includes an indication field 2. If the index of the second frequency domain resource is 01, the indication field 2 indicates 01, and the identification information corresponding to the indication field 2 is the second identification information.
  • the first indication information in Embodiment 1 may include the fourth indication information, that is, the frequency domain resource indicated by the fourth indication information that receives the identification information may be the frequency domain resource corresponding to the inventory confirmation information.
  • the first indication information may also indicate the frequency domain resource carrying the response information of the inventory confirmation information, that is, the frequency domain resource corresponding to the inventory confirmation information may also include the frequency domain resource of the response information of the inventory confirmation information.
  • Embodiment 1 and Embodiment 2 of the present application can be implemented independently, or can be mutually referenced and implemented in combination, and the schemes of the above implementations combined with each other should also fall within the protection scope of the present application.
  • each network element may include a hardware structure and/or a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether one of the above-mentioned functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • Fig. 22 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • the communication device 2200 may include a transceiver unit 2220 .
  • the communication device 2200 may correspond to the first device in the above method embodiments, or other devices, modules, circuits or units capable of implementing the method of the first device.
  • the communication device 2200 may include a unit for performing the method performed by the first device among the methods shown in FIG. 6 and FIG. 19 . Moreover, each unit in the communication device 2200 and the above-mentioned other operations and/or functions are for implementing the corresponding processes of the methods shown in FIG. 6 and FIG. 19 .
  • the communication device 2200 may further include a processing unit 2210, and the processing unit 2210 may be configured to process instructions or data to implement corresponding operations.
  • the transceiver unit 2220 in the communication device 2200 may be an input/output interface or circuit of the chip, and the processing unit 2210 in the communication device 2200 may be a processor in the chip.
  • the communication device 2200 may further include a storage unit 2230, which may be used to store instructions or data, and the processing unit 2210 may execute the instructions or data stored in the storage unit, so that the communication device realizes corresponding operations .
  • a storage unit 2230 which may be used to store instructions or data
  • the processing unit 2210 may execute the instructions or data stored in the storage unit, so that the communication device realizes corresponding operations .
  • the transceiver unit 2220 in the communication device 2200 can be realized through a communication interface (such as a transceiver or an input/output interface), for example, it can correspond to the transceiver 2310 in the communication device 2300 shown in FIG. 23 .
  • the processing unit 2210 in the communication apparatus 2200 may be implemented by at least one processor, for example, may correspond to the processor 2320 in the communication device 2300 shown in FIG. 23 .
  • the processing unit 2210 in the communication device 2200 may also be implemented by at least one logic circuit.
  • the storage unit 2230 in the communication apparatus 2200 may correspond to the memory in the communication device 2300 shown in FIG. 23 .
  • the communication device 2200 may correspond to the second device in the above method embodiment, or other devices, modules, circuits or units capable of implementing the method of the second device.
  • the communication device 2200 may include a unit for performing the method performed by the second device among the methods shown in FIG. 6 and FIG. 19 .
  • each unit in the communication device 2200 and the above-mentioned other operations and/or functions are respectively for realizing the corresponding flow of the method shown in FIG. 6 and FIG. 19 .
  • the communication device 2200 may further include a processing unit 2210, and the processing unit 2210 may be configured to process instructions or data to implement corresponding operations.
  • the transceiver unit 2220 in the communication device 2200 may be an input/output interface or circuit of the chip, and the processing unit 2210 in the communication device 2200 may be a processor in the chip.
  • the communication device 2200 may further include a storage unit 2230, which may be used to store instructions or data, and the processing unit 2210 may execute the instructions or data stored in the storage unit, so that the communication device realizes corresponding operations .
  • a storage unit 2230 which may be used to store instructions or data
  • the processing unit 2210 may execute the instructions or data stored in the storage unit, so that the communication device realizes corresponding operations .
  • the transceiver unit 2220 in the communication device 2200 can be realized through a communication interface (such as a transceiver or an input/output interface), for example, it can correspond to the transceiver 2310 in the communication device 2300 shown in FIG. 23 .
  • the processing unit 2210 in the communication apparatus 2200 may be implemented by at least one processor, for example, may correspond to the processor 2320 in the communication device 2300 shown in FIG. 23 .
  • the processing unit 2210 in the communication device 2200 may also be implemented by at least one logic circuit.
  • the storage unit 2230 in the communication apparatus 2200 may correspond to the memory in the communication device 2300 shown in FIG. 23 .
  • FIG. 23 is a schematic structural diagram of a communication device 2300 provided by an embodiment of the present application.
  • the communication device 2300 can be applied to the system shown in FIG. 1, and can correspond to the tag 102 in the system shown in FIG.
  • the communication device 2300 may be configured with a first device.
  • the communication device 2300 includes a processor 2320 and a transceiver 2310 .
  • the communications device 2300 further includes a memory.
  • the processor 2320, the transceiver 2310 and the memory may communicate with each other through an internal connection path, and transmit control signals and/or data signals.
  • the memory is used to store computer programs, and the processor 2320 is used to execute the computer programs in the memory to control the transceiver 2310 to send and receive signals.
  • the above-mentioned processor 2320 can be used to execute the actions described in the foregoing method embodiments implemented by the communication device, and the transceiver 2310 can be used to execute the transmission from the first device to the second device or from the second device described in the foregoing method embodiments.
  • the action received by the device please refer to the description in the foregoing method embodiments, and details are not repeated here.
  • the communication device 2300 may further include a power supply, configured to provide power to various devices or circuits in the communication device.
  • the communication device 2300 can be applied to the system shown in FIG. 1, and can correspond to the reader 101 in the system shown in FIG. 1, and perform the function of the second device in the above method embodiment , for example, when the communication device 2300 is used as a reader, a second device may be configured.
  • the communication device 2300 includes a processor 2320 and a transceiver 2310 .
  • the communications device 2300 further includes a memory.
  • the processor 2320, the transceiver 2310 and the memory may communicate with each other through an internal connection path, and transmit control signals and/or data signals.
  • the memory is used to store computer programs, and the processor 2320 is used to execute the computer programs in the memory to control the transceiver 2310 to send and receive signals.
  • the above-mentioned processor 2320 can be used to execute the actions described in the foregoing method embodiments implemented by the communication device, and the transceiver 2310 can be used to execute the transmission from the second device to the first device or from the first device described in the foregoing method embodiments.
  • the action received by the device please refer to the description in the foregoing method embodiments, and details are not repeated here.
  • the communication device 2300 may further include a power supply, configured to provide power to various devices or circuits in the communication device.
  • the embodiment of the present application also provides a processing device, including a processor and a (communication) interface; the processor is configured to execute the method in any one of the above method embodiments.
  • the above processing device may be one or more chips.
  • the processing device may be a field programmable gate array (field programmable gate array, FPGA), an application specific integrated circuit (ASIC), or a system chip (system on chip, SoC). It can be a central processor unit (CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), or a microcontroller (micro controller unit) , MCU), can also be a programmable controller (programmable logic device, PLD) or other integrated chips.
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processor
  • microcontroller micro controller unit
  • PLD programmable logic device
  • the present application also provides a computer program product, the computer program product comprising: computer program code, when the computer program code is executed by one or more processors, the The device executes the methods in the embodiments shown in FIG. 6 and FIG. 19 .
  • the technical solutions provided by the embodiments of the present application may be fully or partially implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the processes or functions according to the embodiments of the present invention will be generated in whole or in part.
  • the above computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, and the computer-readable storage medium may be any available medium that can be accessed by a computer or contain One or more data storage devices such as servers and data centers that can be integrated with media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, or a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD)), or a semiconductor medium.
  • the present application also provides a computer-readable storage medium, the computer-readable storage medium stores program code, and when the program code is run by one or more processors, the processing includes the The device of the device executes the method in the embodiment shown in FIG. 6 and FIG. 19 .
  • the present application further provides a system, which includes the foregoing one or more first devices.
  • the system can also further include the aforementioned one or more third devices.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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Abstract

本申请提供了一种通信方法和通信装置，该方法包括：第一装置接收来自第二装置的第一信令，该第一信令包括多个盘存信息，该多个盘存信息中的每个盘存信息对应该多个频域资源中的至少一个频域资源，其中，该多个盘存信息包括第一盘存信息，该第一盘存信息对应多个候选频域资源中的第一频域资源；该第一装置在第一频域资源上发送第一信息，该第一信息用于响应该第一盘存信息。以期提高了资源利用率，减小了盘存的时延，提高了盘存效率。

Description

通信方法和通信装置
本申请要求于2021年12月07日提交中国国家知识产权局、申请号为202111489039.0、申请名称为“通信方法和通信装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，并且更具体地，涉及一种通信方法和通信装置。
背景技术
射频识别(radio frequency identification，RFID)技术，是一种非接触式的自动识别技术。阅读器通过向标签发送激励信号为标签提供能量，标签可以将来自阅读器的激励信号作为载波向阅读器反射上行信令。阅读器可以通过盘存流程识别标签，以及对标签进行读、写等操作。
具体地，阅读器对标签进行盘存时为多个标签提供一个上行资源，满足条件的标签在该上行资源上发送盘存响应信息，若存在多个标签在该上行资源上同时发送盘存响应信息，则采用相应地冲突解决机制解决冲突。目前这种对标签逐个盘存的方式的盘存效率较低。
发明内容
本申请实施例提供一种通信方法和通信装置，以期提高了资源利用率，减小了盘存的时延，提高了盘存效率、增加了盘存容量。
第一方面，提供了一种通信方法，该方法可以由第一装置或配置于(或用于)第一装置的模块(如芯片)执行。
该方法包括：第一装置接收来自第二装置的第一信令，该第一信令包括多个盘存信息，该多个盘存信息中的每个盘存信息对应多个候选频域资源中的至少一个频域资源，其中，该多个盘存信息包括第一盘存信息，该第一盘存信息对应该多个候选频域资源中的第一频域资源；该第一装置在第一频域资源上发送第一信息，该第一信息用于响应该第一盘存信息。
根据上述方案，第二装置可以在一个信令中发送多个盘存信息，每个盘存信息对应至少一个频域资源，利用信道带宽中包含的多个可用上行资源，可以实现不同装置的盘存流程并行进行，提高了资源利用率，减小了盘存的时延，提高了盘存效率、增加了盘存容量。
结合第一方面，在第一方面的某些实施方式中，该多个盘存信息按照在该第一信令中的排列顺序与该多个候选频域资源按照频率顺序依次对应。
根据上述方案，通过盘存信息在第一信令中的排列顺序隐式地指示了盘存信息对应的频域资源，使得第二装置与第一装置对盘存信息对应的频域资源达成共识，能够节省信令开销、提高信令传输的可靠性。
结合第一方面，在第一方面的某些实施方式中，该多个盘存信息中的一个盘存信息包括一个第一指示信息，该第一指示信息用于指示该一个该盘存信息对应的频域资源，或者，该第一信令还包括第一比特组，该第一比特组中的多个比特与该多个候选频域资源一一对 应，该第一比特组中的一个比特用于指示该第一信令中包括该一个比特对应的频域资源对应的盘存信息，或用于指示该第一信令中不包括该一个比特对应的频域资源对应的盘存信息。
根据上述方案，第一信令可以通过以上多种方式中的至少一种方式能够灵活的指示盘存信息对应的频域资源，使得第二装置与第一装置对盘存信息对应的频域资源可以达成共识，提高了信令传输的可靠性。
结合第一方面，在第一方面的某些实施方式中，该第一信令还包括第二指示信息，该第二指示信息用于指示第一数量，该第一数量为该多个盘存信息中盘存信息的数量。
根据上述方案，第一信令可以指示盘存信息的数量，以便第一装置接收到该第一信令后可以确定该第一信令包含的盘存信息的数量，以及第一装置能够基于第一数量确定第一信令的长度，使得第一信令基于第一数量的不同而信令长度不同，从而在第一信令包含的盘存信息较少的情况下，能够减小信令开销。
结合第一方面，在第一方面的某些实施方式中，该第一信令包括一个信令头部字段，或者，该多个盘存信息中的每个盘存信息包括一个信令头部字段。
结合第一方面，在第一方面的某些实施方式中，该多个盘存信息与第一信令中的多个第三指示信息相对应，一个该第三指示信息用于指示对应的盘存信息的信息类型。
根据上述方案，第一信令中可以包含不同类型的盘存信息，第一装置可以通过第三指示信息确定每个盘存信息的类型。实现了多种类型的盘存信息复用同一信令，使得处于多个盘存流程可以并行进行，提高了盘存的效率，增加了盘存容量。
结合第一方面，在第一方面的某些实施方式中，该多个盘存信息包括以下一种或多种类型的盘存信息：
标签选择信息、盘存询问信息、盘存询问重复信息、盘存询问调节信息或盘存确认信息。
结合第一方面，在第一方面的某些实施方式中，该第一信令包括一个头部字段，该所第一信令的头部字段包括该多个第三指示信息，该多个第三指示信息按照排列顺序与该多个盘存信息按照排列顺序依次对应，或者，该多个盘存信息中的一个盘存信息中包含一个该第三指示信息。
结合第一方面，在第一方面的某些实施方式中，该多个盘存信息中的每个盘存信息包括一个头部字段，一个该盘存信息的头部字段包括一个该第三指示信息。
结合第一方面，在第一方面的某些实施方式中，该第三指示信息为逻辑信道标识信息。
根据上述方案，规定了第三指示信息在第一信令中的信息位置，使得第一装置与第二装置对第一信令中的第三指示信息的信息位置能够达成共识，能够避免未达成共识造成的信息解读错误的情况。
结合第一方面，在第一方面的某些实施方式中，该方法还包括：该第一装置接收来自该第二装置的第二信息，该第二信息用于指示该多个候选频域资源。
根据上述方案，第一装置可以通过第二装置发送的第二信息，确定信道带宽中的多个候选频域资源。使得第一装置与第二装置对信道带宽中第一装置可用的频域资源达成共识。
结合第一方面，在第一方面的某些实施方式中，该第一盘存信息为确认信息，该确认信息包括至少一个标识信息，该至少一个标识信息为该第二装置确认在该多个候选频域资源上接收到的标识信息。
根据上述方案，第二装置可以通过盘存确认信息，确认在多个候选频域资源上接收到的标识信息，如随机数(random number，RN)16信息，使得第二装置能够并行地盘存多个通信装置(如标签)，能够提高盘存效率。
结合第一方面，在第一方面的某些实施方式中，该确认信息还包括第二数量，该第二数量为该确认信息中标识信息的数量。
根据上述方案，确认信息可以指示包含的标识信息的数量，以便第一装置接收到该确认信息后可以确定该确认信息包含的标识信息的数量，以及第一装置能够基于第二数量确定确认信息的长度，使得确认信息基于第一数量的不同而信息长度不同，从而在确认信息包含的标识信息较少的情况下，能够减小信令开销。
结合第一方面，在第一方面的某些实施方式中，该确认信息还包括第四指示信息，该第四指示信息用于指示该确认信息中的每个该标识信息对应的该多个候选频域资源中的一个频域资源。
根据上述方案，确认信息中还可以包括指示确认的标识信息对应的频域资源的第四指示信息，使得第一装置能够确定第二装置具体确认的标识信息对应的频域资源，能够避免不同装置在不同频域资源上发送相同的标识信息，而第二装置仅确认接收到其中一个频域资源上的标识信息，出现发送该标识信息的装置误判为均被确认接收到的情况。提高盘存流程的可靠性。
结合第一方面，在第一方面的某些实施方式中，该第四指示信息包括第二比特组，该第二比特组中的多个比特与该多个候选频域资源一一对应，该第二比特组中的一个比特用于指示该确认信息中包括在该一个比特对应的频域资源接收到的标识信息，或者，用于指示该确认信息中不包括在该一个比特对应的频域资源接收到的标识信息。
根据上述方案，确认信息中还可以包括指示确认的标识信息对应的频域资源的第四指示信息，使得第一装置能够确定第二装置具体确认的标识信息对应的频域资源，能够避免不同装置在不同频域资源上发送相同的标识信息，而第二装置仅确认接收到其中一个频域资源上的标识信息，出现发送该标识信息的装置误判为均被确认接收到的情况。提高盘存流程的可靠性。采用一个比特对应一个频域资源的指示方式，能够减小信令开销。
结合第一方面，在第一方面的某些实施方式中，该第四指示信息包括至少一个指示域，该至少一个指示域与该至少一个标识信息一一对应，一个该指示域用于指示接收到该一个该指示域对应的该标识信息的频域资源。
根据上述方案，确认信息中还可以包括指示确认的标识信息对应的频域资源的第四指示信息，使得第一装置能够确定第二装置具体确认的标识信息对应的频域资源，能够避免不同装置在不同频域资源上发送相同的标识信息，而第二装置仅确认接收到其中一个频域资源上的标识信息，出现发送该标识信息的装置误判为均被确认接收到的情况。提高盘存流程的可靠性。
结合第一方面，在第一方面的某些实施方式中，该第一盘存信息为确认信息，该第一装置接收来自该第二装置的该第一信令之前，该方法还包括：该第一装置在该第一频域资源发送该第一装置的第一标识信息，其中，该确认信息中包括该第一标识信息，该第一信息中包括该第一装置的身份信息。
结合第一方面，在第一方面的某些实施方式中，该第一信令为公共信令。
根据上述方案，第一信令作为公共信令可以通知到多个通信装置，能够减小信令开销， 使得多个通信装置对第一信令达成共识。
结合第一方面，在第一方面的某些实施方式中，该方法还包括：该第一装置在该多个候选频域资源中随机选择该第一频域资源，或者，该第一装置接收来自该第二装置的第三信息，该第三信息用于指示该第一装置在该第一频域资源传输信息。
根据上述方案，第一装置在多个候选频域资源中随机选择第一频域资源，或通过第二装置的指示确定第一频域资源，能够减小不同通信装置发送的上行信息发生频域资源碰撞的概率，提高了通信的可靠性。
结合第一方面，在第一方面的某些实施方式中，该第三信息具体用于指示第一装置组在第一频域资源传输信息，该第一装置组包括该第一装置。
根据上述方案，一个通信装置组可以共用一个频域资源，能够减小通信装置组发送的上行信息发生频域资源碰撞的概率，能够在提高盘存效率、增加盘存容量的情况下，提高了通信的可靠性。
第二方面，提供了一种通信方法，有益效果可以参见第一方面的描述此处不再赘述。该方法可以由第二装置或配置于(或用于)第二装置的模块(如芯片)执行。
该方法包括：第二装置向第一装置发送第一信令，该第一信令包括多个盘存信息，该多个盘存信息中的每个盘存信息对应该多个候选频域资源中的至少一个频域资源，其中，该多个盘存信息包括第一盘存信息，该第一盘存信息对应该多个候选频域资源中的第一频域资源；该第二装置在第一频域资源上接收来自该第一装置的第一信息，该第一信息用于响应该第一盘存信息。
结合第二方面，在第二方面的某些实施方式中，该多个盘存信息按照在该第一信令中的排列顺序与该多个候选频域资源按照频率顺序依次对应，或者，该多个盘存信息中的一个盘存信息包括一个第一指示信息，该第一指示信息用于指示该一个该盘存信息对应的频域资源，或者，该第一信令还包括第一比特组，该第一比特组中的多个比特与该多个候选频域资源一一对应，该第一比特组中的一个比特用于指示该第一信令中包括该一个比特对应的频域资源对应的盘存信息，或者，用于指示该第一信令中不包括该一个比特对应的频域资源对应的盘存信息。
结合第二方面，在第二方面的某些实施方式中，该第一信令还包括第二指示信息，该第二指示信息用于指示第一数量，该第一数量为该多个盘存信息中盘存信息的数量。
结合第二方面，在第二方面的某些实施方式中，该第一信令包括一个信令头部字段，或者，该多个盘存信息中的每个盘存信息包括一个信令头部字段。
结合第二方面，在第二方面的某些实施方式中，该多个盘存信息与第一信令中的多个第三指示信息一一对应，一个该第三指示信息用于指示对应的盘存信息的信息类型。
结合第二方面，在第二方面的某些实施方式中，该信息类型为标签选择、盘存询问或盘存确认。
结合第二方面，在第二方面的某些实施方式中，该第一信令包括一个头部字段，所第一信令的头部字段包括该多个第三指示信息，该多个第三指示信息按照排列顺序与该多个盘存信息按照排列顺序依次对应，或者，该多个盘存信息中的一个盘存信息中包含一个该第三指示信息。
结合第二方面，在第二方面的某些实施方式中，该多个盘存信息中的每个盘存信息包括一个头部字段，一个该盘存信息的头部字段包括一个该第三指示信息。
结合第二方面，在第二方面的某些实施方式中，该第三指示信息为逻辑信道标识信息。
结合第二方面，在第二方面的某些实施方式中，该方法还包括：该第二装置向该第一装置发送第二信息，该第二信息用于指示该多个候选频域资源。
结合第二方面，在第二方面的某些实施方式中，该第一盘存信息为确认信息，该确认信息包括至少一个标识信息，该至少一个标识信息为该第二装置确认在该多个候选频域资源上接收到的标识信息。
结合第二方面，在第二方面的某些实施方式中，该确认信息还包括第二数量，该第二数量为该确认信息中标识信息的数量。
结合第二方面，在第二方面的某些实施方式中，该确认信息还包括第四指示信息，该第四指示信息用于指示该确认信息中的每个该标识信息对应的该多个候选频域资源中的一个频域资源。
结合第二方面，在第二方面的某些实施方式中，该第四指示信息包括第二比特组，该第二比特组中的多个比特与该多个候选频域资源一一对应，该第二比特组中的一个比特用于指示该确认信息中包括在该一个比特对应的频域资源接收到的标识信息，或者，用于指示该确认信息中不包括在该一个比特对应的频域资源接收到的标识信息，或者，该第四指示信息包括至少一个指示域，该至少一个指示域与该至少一个标识信息一一对应，一个该指示域用于指示接收到该一个该指示域对应的该标识信息的频域资源。
结合第二方面，在第二方面的某些实施方式中，该第一盘存信息为确认信息，该第二装置向该第一装置发送该第一信令之前，该方法还包括：该第二装置在该第一频域资源上接收来自该第一装置的第一标识信息，其中，该确认信息中包括该第一标识信息，该第一信息中包括该第一装置的身份信息。
结合第二方面，在第二方面的某些实施方式中，该第一信令为公共信令。
结合第二方面，在第二方面的某些实施方式中，该方法还包括：该第二装置向该第一装置发送第三信息，该第三信息用于指示该第一装置在该第一频域资源传输上行信息。
结合第二方面，在第二方面的某些实施方式中，该第三信息具体用于指示第一装置组在第一频域资源传输信息，该第一装置组包括该第一装置。
第三方面，提供了一种通信方法，有益效果可以参见第一方面相应内容的描述此处不再赘述。该方法可以由第一装置或配置于(或用于)第一装置的模块(如芯片)执行。
该方法包括：第一装置接收来自第二装置的第二信息和盘存信息，该第二信息用于指示该多个候选频域资源，该频域资源用于传输上行信息，该盘存信息用于盘存该第一装置，该多个候选频域资源包括第一频域资源；该第一装置根据该盘存信息，在该第一频域资源发送该第一装置的第一标识信息。
结合第三方面，在第三方面的某些实施方式中，该第二信息为公共信息。
结合第三方面，在第三方面的某些实施方式中，该方法还包括：该第一装置在该多个候选频域资源中随机选择该第一频域资源，或者，该第一装置接收来自该第二装置的第三信息，该第三信息用于指示该第一装置在该第一频域资源传输上行信息。
结合第三方面，在第三方面的某些实施方式中，该第三信息具体用于指示第一装置组在第一频域资源传输信息，该第一装置组包括该第一装置。
结合第三方面，在第三方面的某些实施方式中，该方法还包括：该第一装置接收来自该第二装置的第一信令，该第一信令包括确认信息，该确认信息包括至少一个标识信息， 该至少一个标识信息为该第二装置确认在该多个候选频域资源上接收到的标识信息，该至少一个标识信息包括该第一标识信息。
结合第三方面，在第三方面的某些实施方式中，该确认信息还包括第二数量，该第二数量为该确认信息中标识信息的数量。
结合第三方面，在第三方面的某些实施方式中，该确认信息还包括第四指示信息，该第四指示信息用于指示该确认信息中的每个标识信息对应的该多个候选频域资源中的一个频域资源。
结合第三方面，在第三方面的某些实施方式中，该第四指示信息包括第二比特组，该第二比特组中的多个比特与该多个候选频域资源一一对应，该第二比特组中的一个比特用于指示该确认信息中包括在该一个比特对应的频域资源上接收到的标识信息，或者用于指示该确认信息中不包括在该一个比特对应的频域资源接收到的标识信息；或者，该第四指示信息包括至少一个指示域，该至少一个指示域与该至少一个标识信息一一对应，一个该指示域用于指示接收到该一个该指示域对应的该标识信息的频域资源。
结合第三方面，在第三方面的某些实施方式中，该方法还包括：该第一装置在该第一频域资源向该第二装置发送该第一装置的身份信息。
第四方面，提供了一种通信方法，有益效果可以参见第一方面相应内容的描述此处不再赘述。该方法可以由第二装置或配置于(或用于)第二装置的模块(如芯片)执行。
该方法包括：第二装置向第一装置发送的第二信息和盘存信息，该第二信息用于指示该多个候选频域资源，该频域资源用于传输上行信息，该盘存信息用于盘存至少一个通信装置，该至少一个通信装置包括该第一装置，该多个候选频域资源包括第一频域资源；该第二装置在该第一频域资源接收来自该第一装置的第一标识信息。
结合第四方面，在第四方面的某些实施方式中，该第二信息为公共信息。
结合第四方面，在第四方面的某些实施方式中，该方法还包括：该第一装置接收来自该第二装置的第三信息，该第三信息用于指示该第一装置在该第一频域资源传输信息。
结合第四方面，在第四方面的某些实施方式中该第三信息具体用于指示第一装置组在第一频域资源传输信息，该第一装置组包括该第一装置。
结合第四方面，在第四方面的某些实施方式中该方法还包括：该第二装置向该第一装置发送第一信令，该第一信令包括确认信息，该确认信息包括至少一个标识信息，该至少一个标识信息为该第二装置确认在该多个候选频域资源上接收到的标识信息，该至少一个标识信息包括该第一标识信息。
结合第四方面，在第四方面的某些实施方式中该确认信息还包括第二数量，该第二数量为该确认信息中标识信息的数量。
结合第四方面，在第四方面的某些实施方式中该确认信息还包括第四指示信息，该第四指示信息用于指示该确认信息中的每个标识信息对应的该多个候选频域资源中的一个频域资源。
结合第四方面，在第四方面的某些实施方式中该第四指示信息包括第二比特组，该第二比特组中的多个比特与该多个候选频域资源一一对应，该第二比特组中的一个比特用于指示该确认信息中包括在该一个比特对应的频域资源上接收到的标识信息，或者用于指示该确认信息中不包括在该一个比特对应的频域资源接收到的标识信息；或者，该第四指示信息包括至少一个指示域，该至少一个指示域与该至少一个标识信息一一对应，一个该指 示域用于指示接收到该一个该指示域对应的该标识信息的频域资源。
结合第四方面，在第四方面的某些实施方式中该方法还包括：该第二装置在该第一频域资源接收来自该第一装置的身份信息。
第五方面，提供了一种通信装置，一种设计中，该装置可以包括执行第一方面中所描述的方法/操作/步骤/动作所一一对应的模块，该模块可以是硬件电路，也可是软件，也可以是硬件电路结合软件实现。一种设计中，该装置包括：收发单元，接收来自第二装置的第一信令，该第一信令包括多个盘存信息，该多个盘存信息中的每个盘存信息对应多个候选频域资源中的至少一个频域资源，其中，该多个盘存信息包括第一盘存信息。处理单元，用于确定该第一盘存信息对应该多个候选频域资源中的第一频域资源；该收发单元还用于在第一频域资源上发送第一信息，该第一信息用于响应该第一盘存信息。
结合第五方面，在第五方面的某些实施方式中，该多个盘存信息按照在该第一信令中的排列顺序与该多个候选频域资源按照频率顺序依次对应，或者，该多个盘存信息中的一个盘存信息包括一个第一指示信息，该第一指示信息用于指示该一个该盘存信息对应的频域资源，或者，该第一信令还包括第一比特组，该第一比特组中的多个比特与该多个候选频域资源一一对应，该第一比特组中的一个比特用于指示该第一信令中包括该一个比特对应的频域资源对应的盘存信息，或者，用于指示该第一信令中不包括该一个比特对应的频域资源对应的盘存信息。
结合第五方面，在第五方面的某些实施方式中，该第一信令还包括第二指示信息，该第二指示信息用于指示第一数量，该第一数量为该多个盘存信息中盘存信息的数量。
结合第五方面，在第五方面的某些实施方式中，该第一信令包括一个信令头部字段，或者，该多个盘存信息中的每个盘存信息包括一个信令头部字段。
结合第五方面，在第五方面的某些实施方式中，该多个盘存信息与第一信令中的多个第三指示信息相对应，一个该第三指示信息用于指示对应的盘存信息的信息类型。
结合第五方面，在第五方面的某些实施方式中，该信息类型包括以下一项或多项：
标签选择、盘存询问、盘存询问重复、盘存询问调节或盘存确认。
结合第五方面，在第五方面的某些实施方式中，该第一信令包括一个头部字段，该所第一信令的头部字段包括该多个第三指示信息，该多个第三指示信息按照排列顺序与该多个盘存信息按照排列顺序依次对应，或者，该多个盘存信息中的一个盘存信息中包含一个该第三指示信息。
结合第五方面，在第五方面的某些实施方式中，该多个盘存信息中的每个盘存信息包括一个头部字段，一个该盘存信息的头部字段包括一个该第三指示信息。
结合第五方面，在第五方面的某些实施方式中，该第三指示信息为逻辑信道标识信息。
结合第五方面，在第五方面的某些实施方式中，该方法还包括：该收发单元还用于接收来自该第二装置的第二信息，该第二信息用于指示该多个候选频域资源。
结合第五方面，在第五方面的某些实施方式中，该第一盘存信息为确认信息，该确认信息包括至少一个标识信息，该至少一个标识信息为该第二装置确认在该多个候选频域资源上接收到的标识信息。
结合第五方面，在第五方面的某些实施方式中，该确认信息还包括第二数量，该第二数量为该确认信息中标识信息的数量。
结合第五方面，在第五方面的某些实施方式中，该确认信息还包括第四指示信息， 该第四指示信息用于指示该确认信息中的每个该标识信息对应的该多个候选频域资源中的一个频域资源。
结合第五方面，在第五方面的某些实施方式中，该第四指示信息包括第二比特组，该第二比特组中的多个比特与该多个候选频域资源一一对应，该第二比特组中的一个比特用于指示该确认信息中包括在该一个比特对应的频域资源接收到的标识信息，或者，用于指示该确认信息中不包括在该一个比特对应的频域资源接收到的标识信息，或者，该第四指示信息包括至少一个指示域，该至少一个指示域与该至少一个标识信息一一对应，一个该指示域用于指示接收到该一个该指示域对应的该标识信息的频域资源。
结合第五方面，在第五方面的某些实施方式中，该第一盘存信息为确认信息，该第一装置接收来自该第二装置的该第一信令之前，该收发单元还用于在该第一频域资源发送该第一装置的第一标识信息，其中，该确认信息中包括该第一标识信息，该第一信息中包括该第一装置的身份信息。
结合第五方面，在第五方面的某些实施方式中，该第一信令为公共信令。
结合第五方面，在第五方面的某些实施方式中，该处理单元还用于在该多个候选频域资源中随机选择该第一频域资源，或者，该收发单元还用于接收来自该第二装置的第三信息，该第三信息用于指示该第一装置在该第一频域资源传输信息。
结合第五方面，在第五方面的某些实施方式中，该第三信息具体用于指示第一装置组在第一频域资源传输信息，该第一装置组包括该第一装置。
第六方面，提供了一种通信装置，一种设计中，该装置可以包括执行第二方面中所描述的方法/操作/步骤/动作所一一对应的模块，该模块可以是硬件电路，也可是软件，也可以是硬件电路结合软件实现。一种设计中，该装置包括：处理单元，用于确定第一信令，该第一信令包括多个盘存信息，该多个盘存信息中的每个盘存信息对应该多个候选频域资源中的至少一个频域资源，其中，该多个盘存信息包括第一盘存信息，该第一盘存信息对应该多个候选频域资源中的第一频域资源；收发单元，用于向第一装置发送第一信令；该收发单元还用于在第一频域资源上接收来自该第一装置的第一信息，该第一信息用于响应该第一盘存信息。
结合第六方面，在第六方面的某些实施方式中，该多个盘存信息按照在该第一信令中的排列顺序与该多个候选频域资源按照频率顺序依次对应，或者，该多个盘存信息中的一个盘存信息包括一个第一指示信息，该第一指示信息用于指示该一个该盘存信息对应的频域资源，或者，该第一信令还包括第一比特组，该第一比特组中的多个比特与该多个候选频域资源一一对应，该第一比特组中的一个比特用于指示该第一信令中包括该一个比特对应的频域资源对应的盘存信息，或者，用于指示该第一信令中不包括该一个比特对应的频域资源对应的盘存信息。
结合第六方面，在第六方面的某些实施方式中，该第一信令还包括第二指示信息，该第二指示信息用于指示第一数量，该第一数量为该多个盘存信息中盘存信息的数量。
结合第六方面，在第六方面的某些实施方式中，该第一信令包括一个信令头部字段，或者，该多个盘存信息中的每个盘存信息包括一个信令头部字段。
结合第六方面，在第六方面的某些实施方式中，该多个盘存信息与第一信令中的多个第三指示信息一一对应，一个该第三指示信息用于指示对应的盘存信息的信息类型。
结合第六方面，在第六方面的某些实施方式中，该信息类型为标签选择、盘存询问或 盘存确认。
结合第六方面，在第六方面的某些实施方式中，该第一信令包括一个头部字段，所第一信令的头部字段包括该多个第三指示信息，该多个第三指示信息按照排列顺序与该多个盘存信息按照排列顺序依次对应，或者，该多个盘存信息中的一个盘存信息中包含一个该第三指示信息。
结合第六方面，在第六方面的某些实施方式中，该多个盘存信息中的每个盘存信息包括一个头部字段，一个该盘存信息的头部字段包括一个该第三指示信息。
结合第六方面，在第六方面的某些实施方式中，该第三指示信息为逻辑信道标识信息。
结合第六方面，在第六方面的某些实施方式中，该收发单元还用于向该第一装置发送第二信息，该第二信息用于指示该多个候选频域资源。
结合第六方面，在第六方面的某些实施方式中，该第一盘存信息为确认信息，该确认信息包括至少一个标识信息，该至少一个标识信息为该第二装置确认在该多个候选频域资源上接收到的标识信息。
结合第六方面，在第六方面的某些实施方式中，该确认信息还包括第二数量，该第二数量为该确认信息中标识信息的数量。
结合第六方面，在第六方面的某些实施方式中，该确认信息还包括第四指示信息，该第四指示信息用于指示该确认信息中的每个该标识信息对应的该多个候选频域资源中的一个频域资源。
结合第六方面，在第六方面的某些实施方式中，该第四指示信息包括第二比特组，该第二比特组中的多个比特与该多个候选频域资源一一对应，该第二比特组中的一个比特用于指示该确认信息中包括在该一个比特对应的频域资源接收到的标识信息，或者，用于指示该确认信息中不包括在该一个比特对应的频域资源接收到的标识信息，或者，该第四指示信息包括至少一个指示域，该至少一个指示域与该至少一个标识信息一一对应，一个该指示域用于指示接收到该一个该指示域对应的该标识信息的频域资源。
结合第六方面，在第六方面的某些实施方式中，该第一盘存信息为确认信息，该第二装置向该第一装置发送该第一信令之前，该收发单元还用于在该第一频域资源上接收来自该第一装置的第一标识信息，其中，该确认信息中包括该第一标识信息，该第一信息中包括该第一装置的身份信息。
结合第六方面，在第六方面的某些实施方式中，该第一信令为公共信令。
结合第六方面，在第六方面的某些实施方式中，该收发单元还用于向该第一装置发送第三信息，该第三信息用于指示该第一装置在该第一频域资源传输信息。
结合第六方面，在第六方面的某些实施方式中，该第三信息具体用于指示第一装置组在第一频域资源传输信息，该第一装置组包括该第一装置。
第七方面，提供了一种通信装置，一种设计中，该装置可以包括执行第三方面中所描述的方法/操作/步骤/动作所一一对应的模块，该模块可以是硬件电路，也可是软件，也可以是硬件电路结合软件实现。一种设计中，该装置包括：收发单元，用于接收来自第二装置的第二信息和盘存信息，该第二信息用于指示该多个候选频域资源，该频域资源用于传输上行信息，该盘存信息用于盘存该第一装置；处理单元，用于确定该多个候选频域资源包括第一频域资源；该收发单元还用于根据该盘存信息，在该第一频域资源发送该第一装置的第一标识信息。
结合第七方面，在第七方面的某些实施方式中，该第二信息为公共信息。
结合第七方面，在第七方面的某些实施方式中，该处理单元还用于在该多个候选频域资源中随机选择该第一频域资源，或者，该收发单元还用于接收来自该第二装置的第三信息，该第三信息用于指示该第一装置在该第一频域资源传输上行信息。
结合第七方面，在第七方面的某些实施方式中，该第三信息具体用于指示第一装置组在第一频域资源传输信息，该第一装置组包括该第一装置。
结合第七方面，在第七方面的某些实施方式中，该收发单元还用于接收来自该第二装置的第一信令，该第一信令包括确认信息，该确认信息包括至少一个标识信息，该至少一个标识信息为该第二装置确认在该多个候选频域资源上接收到的标识信息，该至少一个标识信息包括该第一标识信息。
结合第七方面，在第七方面的某些实施方式中，该确认信息还包括第二数量，该第二数量为该确认信息中标识信息的数量。
结合第七方面，在第七方面的某些实施方式中，该确认信息还包括第四指示信息，该第四指示信息用于指示该确认信息中的每个标识信息对应的该多个候选频域资源中的一个频域资源。
结合第七方面，在第七方面的某些实施方式中，该第四指示信息包括第二比特组，该第二比特组中的多个比特与该多个候选频域资源一一对应，该第二比特组中的一个比特用于指示该确认信息中包括在该一个比特对应的频域资源上接收到的标识信息，或者用于指示该确认信息中不包括在该一个比特对应的频域资源接收到的标识信息；或者，该第四指示信息包括至少一个指示域，该至少一个指示域与该至少一个标识信息一一对应，一个该指示域用于指示接收到该一个该指示域对应的该标识信息的频域资源。
结合第七方面，在第七方面的某些实施方式中，该收发单元还用于在该第一频域资源向该第二装置发送该第一装置的身份信息。
第八方面，提供了一种通信装置，一种设计中，该装置可以包括执行第四方面中所描述的方法/操作/步骤/动作所一一对应的模块，该模块可以是硬件电路，也可是软件，也可以是硬件电路结合软件实现。一种设计中，该装置包括：处理单元，用于确定第二信息和盘存信息，该第二信息用于指示该多个候选频域资源，该频域资源用于传输上行信息，该盘存信息用于盘存至少一个通信装置，该至少一个通信装置包括该第一装置，该多个候选频域资源包括第一频域资源该第二信息和该盘存信息；收发单元，用于向第一装置发送的；该收发单元还用于在该第一频域资源接收来自该第一装置的第一标识信息。
结合第八方面，在第八方面的某些实施方式中，该第二信息为公共信息。
结合第八方面，在第八方面的某些实施方式中，该收发单元还用于接收来自该第二装置的第三信息，该第三信息用于指示该第一装置在该第一频域资源传输信息。
结合第八方面，在第八方面的某些实施方式中，该第三信息具体用于指示第一装置组在第一频域资源传输信息，该第一装置组包括该第一装置。
结合第八方面，在第八方面的某些实施方式中，该收发单元还用于向该第一装置发送第一信令，该第一信令包括确认信息，该确认信息包括至少一个标识信息，该至少一个标识信息为该第二装置确认在该多个候选频域资源上接收到的标识信息，该至少一个标识信息包括该第一标识信息。
结合第八方面，在第八方面的某些实施方式中，该确认信息还包括第二数量，该第二 数量为该确认信息中标识信息的数量。
结合第八方面，在第八方面的某些实施方式中，该确认信息还包括第四指示信息，该第四指示信息用于指示该确认信息中的每个标识信息对应的该多个候选频域资源中的一个频域资源。
结合第八方面，在第八方面的某些实施方式中，该第四指示信息包括第二比特组，该第二比特组中的多个比特与该多个候选频域资源一一对应，该第二比特组中的一个比特用于指示该确认信息中包括在该一个比特对应的频域资源上接收到的标识信息，或者用于指示该确认信息中不包括在该一个比特对应的频域资源接收到的标识信息；或者，该第四指示信息包括至少一个指示域，该至少一个指示域与该至少一个标识信息一一对应，一个该指示域用于指示接收到该一个该指示域对应的该标识信息的频域资源。
结合第八方面，在第八方面的某些实施方式中，该收发单元还用于在该第一频域资源接收来自该第一装置的身份信息。第九方面，提供了一种通信装置，包括处理器。该处理器可以实现上述第一方面以及第一方面中任一种可能实现方式中的方法，或者实现上述第二方面以及第二方面中任一种可能实现方式中的方法。可选地，该通信装置还包括存储器，该处理器与该存储器耦合，可用于执行存储器中的指令，以实现上述第一方面以及第一方面中任一种可能实现方式中的方法，或者实现上述第二方面以及第二方面中任一种可能实现方式中的方法。可选地，该通信装置还包括通信接口，处理器与通信接口耦合。本申请实施例中，通信接口可以是收发器、管脚、电路、总线、模块或其它类型的通信接口，不予限制。
第九方面，提供了一种通信装置，包括处理器。该处理器可以实现上述第一方面以及第一方面中任一种可能实现方式中的方法，或者实现上述第三方面以及第三方面中任一种可能实现方式中的方法。可选地，该通信装置还包括存储器，该处理器与该存储器耦合，可用于执行存储器中的指令，以实现上述第一方面以及第一方面中任一种可能实现方式中的方法，或者实现上述第三方面以及第三方面中任一种可能实现方式中的方法。可选地，该通信装置还包括通信接口，处理器与通信接口耦合。
在一种实现方式中，该通信装置为通信设备。该通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该通信装置为芯片。该通信接口可以是输入/输出接口。
可选地，该收发器可以为收发电路。可选地，该输入/输出接口可以为输入/输出电路。
第十方面，提供了一种通信装置，包括处理器。该处理器可以实现上述第二方面以及第二方面中任一种可能实现方式中的方法，或者实现上述第四方面以及第四方面中任一种可能实现方式中的方法。可选地，该通信装置还包括存储器，该处理器与该存储器耦合，可用于执行存储器中的指令，以实现上述第二方面以及第二方面中任一种可能实现方式中的方法，或者实现上述第四方面以及第四方面中任一种可能实现方式中的方法。可选地，该通信装置还包括通信接口，处理器与通信接口耦合。
在一种实现方式中，该通信装置为通信设备，该通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该通信装置为芯片，该通信接口可以是输入/输出接口。
可选地，该收发器可以为收发电路。可选地，该输入/输出接口可以为输入/输出电路。
第十一方面，提供了一种处理器，包括：输入电路、输出电路和处理电路。该处理电 路用于通过该输入电路接收信号，并通过该输出电路发射信号，使得该处理器执行第一方面至第四方面以及第一方面至第四方面中任一种可能实现方式中的方法。
在具体实现过程中，上述处理器可以为一个或多个芯片，输入电路可以为输入管脚，输出电路可以为输出管脚，处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是由例如但不限于接收器接收并输入的，输出电路所输出的信号可以是例如但不限于输出给发射器并由发射器发射的，且输入电路和输出电路可以是同一电路，该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第十二方面，提供了一种计算机程序产品，该计算机程序产品包括：计算机程序(也可以称为代码，或指令)，当该计算机程序被运行时，使得计算机执行上述第一方面至第四方面以及第一方面至第四方面中任一种可能实现方式中的方法。
第十三方面，提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机程序(也可以称为代码，或指令)当其在计算机上运行时，使得计算机执行上述第一方面至第四方面以及第一方面至第四方面中任一种可能实现方式中的方法。
第十四方面，提供了一种通信系统，包括前述的至少一个第一装置和至少一个第二装置。
附图说明
图1是本申请实施例提供的通信系统的一个示意图；
图2是本申请实施例提供的通信系统的另一个示意图；
图3是本申请实施例提供的通信系统的又一个示意图；
图4是本申请实施例提供的盘存流程的一个示意图；
图5是本申请实施例提供的盘存流程的另一个示意图；
图6是本申请实施例提供的通信方法的一个示意性流程图；
图7至图11是本申请实施例提供的第一信令的信令格式的示意图；
图11A是本申请实施例提供的第一信令的信令格式的示意图；
图12至图17是本申请实施例提供的第一信令的信令格式的示意图；
图17A是本申请实施例提供的在多个频域资源上实现一个通信装置组的盘存流程的示意图；
图18是本申请实施例提供的在多个频域资源上实现多个通信装置组的盘存流程的示意图；
图19是本申请实施例提供的通信方法的另一个示意性流程图；
图20是本申请实施例提供的盘存确认信息的一个示意图；
图21是本申请实施例提供的盘存确认信息的另一个示意图；
图22是本申请实施例提供的通信装置的一例的示意性框图；
图23是本申请实施例提供的终端设备的一例的示意性结构图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本 申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的说明书、权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
图1是适用于本申请实施例的通信系统100的示意图。
该通信系统可以包括至少一个第二装置，第二装置可以是如图1所示的阅读器101，该通信系统还可以包括多个第一装置，第一装置可以是如图1所示的标签102，第一装置与第二装置之间可以实现射频信号的传递，从而实现能量的传递和数据交换。
应理解，图1仅为一个示例，本申请实施例提供的第二装置，可以是阅读器、读出装置、扫描器、读头、通信器或读写器(基于标签是否可以无线改写数据)，或者，第二装置还可以是移动通信系统中的接入网设备，例如，可以是第四代、第五代(5 th gerneration，5G)或未来的移动通信系统中的基站等。但本申请不限于此。
本申请实施例提供的第一装置，可以是标签、终端、终端设备、用户设备，其中，标签可以称为电子标签、智能标签、射频标签、应答器或数据载体等，通常由耦合元件及芯片组成，每个标签可以具有唯一的电子编码。在一些场景中，标签可以附着在物体上用于标识该物体。标签102又可以称射频标签、应答器、数据载体。阅读器101向标签102发送下行信令，具体地，阅读器101可以通过向标签102发送激励信号，该激励信号可以承载阅读器101向标签102发送的下行信令，标签102接收阅读器101发送的下行信令后，可以将该激励信号作为反射载波，向阅读器101发送上行信令。对于无源标签，阅读器向标签提供的激励信号的部分能量用于标签的编解码、调制解调等内部处理，同时该激励信号还作为载波，承载标签的上行信令，反射给阅读器；对于半无源标签，标签的内部包含储能装置(如可以是电池)，编解码、调制解调等内部处理可借助于储能装置功能，但仍需要阅读器发送激励信号作为反射载波。
阅读器可以采用集中式架构，例如图1所示的阅读器，在一些实施方式中，阅读器可以采用分离架构，例如，阅读器可以包括接收器(receiver)和辅助器(helper)。图2是适用于本申请实施例的通信系统200的示意图。如图2所示，阅读器包括接收器201和辅助器202，接收器201与辅助器202之间为前传链路，前传链路包括前传下行链路，用于接收器201向辅助器202发送前传下行信息或下行数据；以及前传链路还包括前传上行链路，用于辅助器202向接收器201发送前传上行信息或上行数据。辅助器202与标签203之间为前向链路(或称为下行链路)，辅助器202负责通过前向链路向标签203发送下行信息或下行数据。接收器201与标签203之间为反向链路(或称为上行链路)，接收器201还负责通过反向链路接收来自标签203的反射信号。
辅助器与接收器之间的前传链路可以考虑采用5G移动通信系统新无线(new radio，NR)技术或者5G侧行链路(sidelink)技术进行信号传输，即接收器生成信息或数据，通过5G NR空口技术作为前传链路发送给辅助器，辅助器再在前向链路上转发该信息或 数据。
如图3所示，在阅读器采用集中式架构的情况下，阅读器除了与标签间通过前向链路和反向链路传输激励信号和反射信号外，阅读器还与集中控制单元(如基站)进行通信，集中控制单元可以对阅读器使用的前向链路的资源和发送行为进行一定的调度、控制等。集中控制单元与reader间的通信考虑采用5G NR技术或者5G sidelink(侧行链路)技术。
图4是标签的盘存流程的一个示意性流程图。在一些场景中，标签可以附着在物体上用于标识物体，盘存流程可以应用于仓库中的库存盘点。或者标签可以附着在动物的耳部或身体上，该盘存流程可以应用于智能养殖场中的牲畜盘点等。
1.阅读器发送选择(Select)信息。
阅读器可以通过向多个标签发送选择信息，该选择信息可以在该多个标签中选择部分或全部标签。阅读器可以通过该选择信息修改标签的一个会话(一个标签可以有4个会话)的盘存标识位，使得阅读器通过步骤2中的盘存询问信息可以通过标签的会话的盘存标志位选择要盘存的标签。该盘存标识位可以是1个比特，用于指示此次盘存中要选择哪些标签。
2.阅读器发送盘存询问(query)信息。
标签可以有4个会话(session)，一个标签在一次盘存过程中只能处于一个会话，一个询问信令可以从该4个会话中选择一个，并对与该会话中的盘存标志位相匹配的标签子集初始化盘存流程，该标签子集中的每个标签运行一个计数器，该计数器的初始值是由标签选择的随机数。
3.标签1向阅读器发送RN16信息。
当启动盘存流程的一个标签的计数器的计数值为0，则该标签将选择一个16位随机数(random number，RN)作为该标签的临时标识信息。该16位随机数也称为RN16信息，或称为RN16。标签1再采用阅读器配置的上行资源向阅读器发送RN16信息。
4.阅读器向标签1发送盘存确认(acknowledge，ACK)信息。
当阅读器成功接收到来自标签1的临时标识，阅读器向标签1发送盘存ACK信息，该盘存ACK信息中包含了来自标签1的临时标识。作为对标签反馈的临时标识的确认。
5.标签1向阅读器发送电子产品编码(electronic product code，EPC)。
标签1接收到来自阅读器的盘存ACK信息后，确定阅读器接收到了临时标识，则标签1向阅读器发送真实标识信息，如EPC，或EPC的一部分，或其他标识(identifier，ID)。
若阅读器接收到的标签1反馈的EPC无效，例如，阅读器对接收到的EPC进行循环冗余校验(cyclic redundancy check，CRC)为失败，则阅读器可以认为该EPC无效。阅读器向标签反馈盘存否定确认(negative acknowledge，NAK)信息。
6.阅读器发送盘存询问重复(QueryRep)信息(或者盘存询问调节(QueryAdjust)信息)。
若标签接收到来自阅读器的盘存询问重复信息，所有计数器的计数值不为0的标签将计数值减1，若减1后一个标签的计数器的计数值为0，则该标签向阅读器发送临时标识(16位随机数)信息。若标签接收到来自阅读器的盘存询问调节信息，所有标签重新选择一个随机数作为计数器的初始值。
若阅读器在图4所示的步骤3中接收到单个标签反馈的RN16信息，说明盘存正常；若多个标签均反馈了RN16信息，阅读器无法解出得到标签的临时标识，说明标签冲突， 则阅读器不会发送盘存ACK信息，而是直接发送盘存QueryRep信息，如图5所示，继续进行后续的盘存流程。另一方面，若阅读器发送盘存Query信息或盘存QueryRep信息后，没有在上行资源上接收到标签反馈的临时标识，则阅读器等待一段时间后再次发送盘存QueryRep信息。
图4、图5所示的流程图中，T1为阅读器发送信息结束到标签开始发送信息之间的时间间隔；T2为标签发送信息结束到阅读器开始发送信息之间的时间间隔；T3为阅读器盘存时若没有标签响应，阅读器需要额外要等待的时间间隔；T4为阅读器发送一条信息结束到下一条信息开始之间的时间间隔(中间标签无反馈信息)。
以上介绍的盘存流程可知，阅读器为需要盘存的标签子集配置一个上行资源，标签逐个利用上行资源发送标识信息，通过由随机数初始化的计数器来尽量避免在上行资源的信息冲突。目前这种对标签逐个盘存的方式，盘存周期较长，盘存效率较低。
目前，为了保证标签的上行信息的覆盖范围，标签发送的上行信息的带宽较窄，如上行信息可能仅占用几kHz的带宽资源，然而上行实际可用的信道带宽可以有几百kHz，本申请提出可以利用信道带宽中的可用资源，使得信道带宽中包括用于传输上行信息的多个上行频域资源，该多个上行频域资源使得不同标签的盘存流程可以并行进行，以提高盘存的效率。
下面将结合附图，对本申请中的技术方案进行描述。
实施例一：
图6是本申请实施例提供的通信方法的一个示意性流程图。图6所示的第二装置可以是阅读器，或第二装置配置于阅读器，第一装置可以是标签，或第一装置配置于标签。该通信方法可以包括但不限于如下步骤：
S601，第二装置向第一装置发送第一信令，该第一信令包括多个盘存信息，每个盘存信息对应多个候选频域资源中的至少一个频域资源。
其中，信道带宽中包括用于传输上行信息的多个频域资源，该多个频域资源可以称为上行信息的多个候选频域资源。该信道带宽为上行最大可用带宽，即第一装置向第二装置发送上行信息的最大可用带宽。相应地，第一装置接收来自第二装置的该第一信令。
该第一信令中的多个盘存信息的类型可以相同也可以不同，作为示例限定，盘存信息可以是选择(select)信息、盘存询问(Query)信息、盘存确认(ACK)信息、盘存询问重复(QueryRep)信息或盘存询问调节(QueryAdjust)信息，以及其他类型的信息。
上述盘存不同类型的盘存信息的具体功能可以参见图4中盘存流程中的介绍，为了简要，在此不再赘述。
作为示例非限定，该第一信令为公共信令。
在该第一信令中一个盘存信息对应的频域资源可以包括用于承载该盘存信息的响应信息。但本申请不限于此，在本申请实施例的一些实施方式中，一个盘存信息对应的频域资源可以包括该盘存信息确认接收到上行信息的频域资源，如该盘存信息可以是盘存确认信息，或者可以包括该盘存信息确认未成功接收到上行信息的频域资源，如该盘存信息可以是盘存否定确认(NACK)信息，具体实施方式可以参考下文中的描述。包含第一装置在内的多个通信装置(如多个标签)可以接收该第一信令，获取第一信令内的多个盘存信息，并且通信装置根据各自所处的状态，确认是否需要响应该多个盘存信息中的盘存信息。例如多个通信装置中的一个通信装置在接收到该第一信令之前发送了RN16信息，该RN16 信息包括该通信装置的临时标识信息。当该通信装置接收到该第一信令后，确定该第一信令中的多个盘存信息中可以包括盘存确认信息，且该盘存确认信息确认接收到了该通信装置的临时标识信息，则该通信装置可以响应该盘存确认信息，若该确认信息对应频域资源1，则该通信装置可以在频域资源1上向第二装置发送该身份信息。该第一信令还可以包括盘存询问重复信息，如果该多个通信装置中的一个通信装置之前未发送过RN16，或者已发送过RN16但第一信令中未包括盘存确认信息，或者包括了盘存确认信息，但该盘存确认信息中未包含该通信装置之前发送的RN16，则该通信装置接收到该第一信令后根据该盘存询问重复信息将计数值减1后计数值为0，则该通信装置可以向第二装置发送RN16信息。比如，该盘存询问重复信息对应频域资源2，该通信装置可以在频域资源2上发送该RN16信息，以反馈该通信装置的临时标识信息。
根据本申请的方案，信道带宽可以包括多个频域资源用于传输上行信息，使得阅读器可以向标签发送包含多个盘存信息的复用信令，使得不同标签可以在不同盘存信息对应的频域资源上执行盘存流程。能够提高资源利用率，减小盘存时延，提高盘存效率。
可选地，该多个盘存信息与第一信令中的多个第三指示信息一一对应，一个第三指示信息用于指示对应的盘存信息的信息类型。
实施方式一，该多个盘存信息中的每个盘存信息包括一个第三指示信息。
一个示例中，该多个盘存信息中的每个盘存信息包括一个头部(header)字段，一个盘存信息的头部字段包括一个第三指示信息。
需要说明的是，头部字段是信息(或信令)中承载指示信息(或称为控制信息)的专用字段，包含至少一个指示信息，使得接收装置基于接收到的信息(或信令)的头部字段中的指示信息可以正确读取该信息(或信令)。
作为示例非限定，第三指示信息可以是逻辑信道标识(logic channel identifier，LCID)信息。
例如，该第一信令的信令格式可以如图7所示，第一信令包括n个盘存信息，每个盘存信息可以是一个媒体接入控制(medium access control，MAC)控制元素(control element，CE)，每个盘存信息包括一个MAC头部字段，一个MAC头部字段包括一个LCID信息(即第三指示信息的一个示例)，LCID信息用于指示盘存信息的信息类型。如图7所示，盘存信息1中的MAC头部字段包括LCID1信息，该LCID1信息用于指示该盘存信息1的信息类型，盘存信息1还包括信息字段1，信息字段1包括盘存信息1的信息内容。盘存信息2中的MAC头部字段包括LCID2信息，以及该盘存信息2还包括信息字段2；盘存信息n中的MAC头部字段包括LCIDn信息，以及该盘存信息n还包括信息字段n。可选地，每个盘存信息的MAC头部字段还可以包括一个或多个预留比特(图7中记作R)。需要说明的是，第一信令中不同盘存信息的LCID字段指示的盘存信息的信息类型可以相同也可以不同，相同类型的盘存信息可以是对应的频域资源不同。
第一信令可以如图8所示，第一信令包括2个盘存信息，一个盘存信息可以是盘存确认信息，该盘存确认信息的MAC头部字段包括LCID1信息，该LCID1信息为盘存确认信息对应的逻辑信道的LCID，第一装置接收到该第一信令后，可以根据LCID1信息，确定包含该LCID1信息的盘存信息为盘存确认(ACK)信息。该盘存确认信息可以用于确认第二装置接收到的标识信息(如RN16)。第一信令中的另一个盘存信息可以是盘存询问重复(QueryRep)信息，该盘存询问重复信息的MAC头部字段包括LCID2信息，该 LCID2信息为盘存询问重复信息对应的逻辑信道的LCID，第一装置接收到该第一信令后，可以根据该LCID2信息，确定包含该LCID2信息的盘存信息为盘存询问重复信息。对于计数值不为0的通信装置接收到该盘存询问重复信息后可以将计数值减1。但本申请不限于此。
需要说明的是，第一信令中的不同盘存信息可以基于信息类型、信息内容等的不同而具有相同或不同的信息长度。应理解，本申请实施例提供的信令格式的示例中，如上述图7、图8所示示例以及下文中的附图示例均为示意图，本申请对第一信令中的不同盘存信息的长度是否相同不作限定。
另一个示例中，该第一信令包括一个头部字段，每个盘存信息中包括一个第三指示信息。
例如图9所示，第一信令包括一个头部字段，该第一信令中的每个盘存信息包括一个第三指示信息，如第一信令中的盘存信息1包括第三指示信息1，该第三指示信息1用于指示盘存信息1的信息类型，盘存信息2包括第三指示信息2，该第三指示信息2用于指示盘存信息2的信息类型，第一信令中的盘存信息n包括第三指示信息n，该第三指示信息n用于指示盘存信息n的信息类型。
在一个具体示例中，第一信令可以如图10所示，第一信令包括1个头部字段和2个盘存信息，其中，每个盘存信息中的第三指示信息包括3比特，该3比特的不同取值指示不同的盘存信息的信息类型。例如，“000”指示信息类型为盘存询问；“001”指示信息类型为盘存确认；“010”指示信息类型为盘存询问重复；“011”指示信息类型为盘存询问调节；“100”指示信息类型为盘存否定确认。第一装置接收到如图10所示的第一信令后，根据第一个盘存信息中第三指示信息的3比特指示“001”，可以确定该盘存信息为盘存确认信息，该盘存确认信息的信息内容可以包含在信息字段1中。第一装置还可以根据该第二个盘存信息中第三指示信息的3比特指示“000”，确定该盘存信息为盘存询问信息，该盘存询问信息的信息内容可以包含在信息字段2中。可选地，第一信令中的头部字段可以包括LCID信息，该LCID信息可以指示该第一信令包括多个盘存信息，或者该LCID信息指示一个逻辑信道的标识，该逻辑信道的标识可以表示该第一信令包括多个盘存信息(或者表示第一信令为多信息复用信令)。该头部字段还可以包括至少一个预留比特(图10中记作R)。
实施方式二，该第一信令包括一个头部(header)字段，该头部字段包括多个第三指示信息，该多个第三指示信息按照排列顺序与多个盘存信息按照排列顺序依次对应。
例如图11所示，第一信令的头部字段包括LCID信息，LCID信息之后包括4个第三指示信息，每3比特为一个第三指示信息，该4个第三指示信息与头部字段之后的4个盘存信息按照在第一信令中的排列顺序依次对应。如第一个第三指示信息的3比特为“010”，指示该第三指示信息对应的第一信令中的第一个盘存信息(即盘存信息1)为盘存询问重复信息；第二个3比特为“001”指示其对应的第二个盘存信息(即盘存信息2)为盘存确认信息；第三个3比特也为“001”，指示盘存信息3为盘存确认信息，该盘存信息2和该盘存信息3可以是对应不同频域资源的盘存确认信息；第四个3比特为“100”，指示盘存信息4为盘存否定确认信息。
可选地，该第一信令还可以包括第二指示信息，该第二指示信息用于指示第一数量，该第一数量为第一信令包含的盘存信息的数量。
第一装置接收到第一信令后可以根据第一数量确定该第一信令中包含的盘存信息的 个数。例如在图11A所示的示例中，LCID信息之后的2个比特为第二指示信息，该第二指示信息的2个比特用于指示在该第二指示信息之后包含的第三指示信息的数量，如该2个比特为“00”指示数量为1，“01”指示数量为2，“10”指示数量为3，“11”指示数量为4。第一装置接收到如图11A所示的第一信令后，根据该第一信令中的第二指示信息指示“11”确定第一数量为4，从而可以确定该第一信令中包括4个第三指示信息和4个盘存信息，也就是说，第一装置可以根据第一数量，确定该第二指示信息之后的12比特为4个第三指示信息。第一装置可以根据该4个第三指示信息，分别确定4个盘存信息的信息类型。
一种实施方式中，盘存信息的信息字段的长度可以基于盘存信息的信息类型确定。
即一种类型的盘存信息中其信息字段的长度为固定值。第一装置基于第三指示信息，可以确定该第三指示信息对应的盘存信息的信息类型，以及第一装置基于该第三指示信息指示的信息类型，还可以确定该第三指示信息对应的盘存信息中信息字段的长度。
例如，第一类型的盘存信息中信息字段的长度为K个比特，第二类型的盘存信息中信息字段的长度为L个比特等。若第一信令中的一个第三指示信息指示相应的盘存信息为第二类型的盘存信息，第一装置基于该第三指示信息可以确定相应的盘存信息的信息类型为第二类型，以及该盘存信息中信息字段的长度为L个比特。
另一种实施方式中，第一信令中还可以包括每个盘存信息对应的长度指示字段，一个盘存信息长度指示字段用于指示相应的盘存信息中的信息字段的长度。
盘存信息对应的长度指示字段可以包含在第一信令中的头部字段中。或者，盘存信息对应的长度指示字段可以包含在第一信令中每个盘存信息之前。第一装置可以基于一个长度指示字段确定在该长度指示字段之后的盘存信息(即该长度指示字段对应的盘存信息)中信息字段的长度。
应理解，本申请实施例包括但并不限于上述确定盘存信息中的信息字段的长度的方式。
可选地，信道带宽包括的多个频域资源可以是预定义的，或者，第二装置可以通知第一装置信道带宽包含的多个频域资源。
例如，第二装置可以向第一装置发送第二信息，该第二信息用于指示信道带宽中可以用于上行信息的多个频域资源。第一装置接收到该第二信息后可以确定该多个频域资源在信道带宽中的位置。可选地，该第二信息可以指示的该多个频域资源可以是信道带宽中包含的所有频域资源。或者，第二信息指示的该多个频域资源可以是信道带宽中的部分频域资源，如第二信息指示的该多个频域资源可以是第一装置(或者第一装置所在的装置组)的可用的频域资源。
第一信令中的每个盘存信息可以对应该多个频域资源中的至少一个频域资源。具体地，第一信令中的盘存信息与频域资源的对应关系可以包括但不限于以下实施方式。
实施方式A，该多个盘存信息按照在第一信令中的排列顺序与该多个频域资源按照频率顺序依次对应。
例如，信道带宽中包括2个频域资源，第一信令包括2个盘存信息，该2个盘存信息按照在第一信令中的排列顺序与该2个频域资源按照频率由低到高的顺序或由高到低的顺序依次对应。比如，频域资源1的最低频率低于频域资源2的最低频率。该2个盘存信息按照在第一信令中的排列顺序与该2个频域资源按照频率由低到高的顺序依次对应，第一信令中的第一个盘存信息对应频率较低的频域资源1，第二个盘存信息对应频率较高的频域资源2。
可选地，该实施方式A可以与前文中信息类型指示的实施方式二相结合实施，第一信令中的每个第三指示信息对应一个频域资源。该第一信令中的多个第三指示信息按照在第一信令中的排列顺序与信道带宽的多个频域资源按照频率顺序依次对应。
例如图11所示的示例中，信道带宽可以包括4个频域资源，第一信令包括4个第三指示信息，该4个第三指示信息可以与该4个频域资源一一对应，该4个第三指示信息按照在第一信令中的排列顺序与4个频域资源按照频率由低到高的顺序依次对应。比如，频域资源1至频域资源4依次频率由低到高，则第一个第三指示信息“010”对应频域资源1，则该第三指示信息即指示了盘存信息1的信息类型，又指示了该盘存信息1对应的频域资源为频域资源1。需要响应该盘存信息1的通信装置可以在该盘存信息1对应的频域资源1上发送该盘存信息1的响应信息。例如，该盘存信息1可以是盘存确认信息，则响应该盘存确认信息的通信装置可以在该频域资源1上发送用于响应该盘存信息1的身份信息。再例如，该盘存信息1可以是盘存询问信息，若一个通信装置接收到该盘存询问信息后计数值减1后为0，则该通信装置响应于该盘存询问信息，在该盘存询问信息对应的频域资源1上发送RN16信息。
可选地，该第三指示信息的一个指示值可以指示第一信令中是否包含相应的频域资源对应的盘存信息。
例如，第三指示信息包括3比特，该3比特为“000”时表示第一信令中不包含相应的频域资源对应的盘存信息。如图12所示示例中，信道带宽包括4个频域资源，则该第一信令中的头部字段可以包括与该4个频域资源依次对应的4个第三指示信息，如该4个第三指示信息为LCID信息之后的12比特，其中，第一个第三指示信息指示“010”表示第一信令中的第一个盘存信息为盘存询问重复信息，根据该第三指示信息为4个第三指示信息中排列在第一个的第三指示信息，则表示该盘存询问重复信息对应的频域资源为频域资源1，若一个通信装置(例如第一装置)根据该盘存询问重复信息，将计数值减1后计数值为0，则该通信装置可以在该盘存询问重复信息对应的频域资源1上发送该通信装置的临时标识信息。该第一信令中的第二个和第三个第三指示信息指示“000”，则表示第一信令中不包含与频域资源2、频域资源3对应的盘存信息，第四个第三指示信息指示“001”，表示第二个盘存信息为盘存确认信息，且该盘存确认信息对应频域资源4。该盘存确认信息对应频域资源4可以表示第二装置在频域资源4接收到了RN16信息，该盘存确认信息可以包括该RN16信息中的通信装置的临时标识信息，在频域资源4上发送该临时标识信息的通信装置可以基于该盘存确认信息，在该频域资源4上再发送身份信息(如该通信装置的EPC)。
实施方式B，该多个盘存信息中的一个盘存信息包括一个第一指示信息，该第一指示信息用于指示该一个该盘存信息对应的频域资源。
例如图13所示的第一信令中每个盘存信息可以包括一个头部字段，头部字段可以包括用于指示该盘存信息的信息类型的第三指示信息(如图13所示的LCID信息)，以及，每个盘存信息中还包括第一指示信息，用于指示该盘存信息对应的频域资源。比如，盘存信息1中包括第一指示信息1，第一指示信息1可以指示盘存信息1对应的一个或多个频域资源。盘存信息2中的第一指示信息2可以指示盘存信息2对应的一个或多个频域资源。盘存信息n中的第一指示信息n可以指示盘存信息n对应的一个或多个频域资源。
再例如图14所示的第一信令中可以包括一个头部字段，以及每个盘存信息可以包括 一个第一指示信息，用于指示该盘存信息对应的一个或多个频域资源。如图14所示的第一信令中的头部字段可以包括指示每个盘存信息的信息类型的多个第三指示信息，或者，每个盘存信息可以包括一个第三指示信息，本申请对此不作限定。
一个示例中，第一指示信息可以包括2比特，该2比特可以指示盘存信息对应的4个频域资源中的一个频域资源，该盘存信息对应的频域资源用于承载该盘存信息的响应信息。如“00”可以指示频域资源1，“01”可以指示频域资源2，“10”可以指示频域资源3，“11”可以指示频域资源4。
另一个示例中，第一指示信息可以包括4比特，其中每2个比特指示盘存信息对应的4个频域资源中的一个频域资源，第一指示信息可以指示盘存信息对应的2个频域资源。
可选地，每个盘存信息中还可以包括用于指示该盘存信息对应的频域资源的数量的指示信息，第一装置可以基于一个盘存信息对应的频域资源的数量，确定该盘存信息对应的第一指示信息包含的比特数。例如，盘存信息1中指示了该盘存信息对应的频域资源的数量为1，则该盘存信息1可以包括2个比特，该2个比特指示一个频域资源，若盘存信息k中指示了该盘存信息对应的频域资源的数量为2，则该盘存信息k可以包括4个比特，其中，每2个比特指示一个频域资源。但本申请不限于此。
另一个示例中，一个第一指示信息可以是一个比特组(如位图(bitmap))，该比特组中的一个比特对应信道带宽中多个频域资源中的一个频域资源，用于指示盘存信息是否与该比特对应的频域资源相对应。
例如，图13或图14中的该第一信令中的第一指示信息1为4个比特的bitmap，该4个比特与信道带宽中的4个频域资源一一对应，其中，一个比特为“0”表示盘存信息1与该比特对应的频域资源不对应。比如，该第一指示信息1的bitmap为“0110”，其中第一个比特对应频域资源1，且该比特指示“0”表示盘存信息1与频域资源1不对应，bitmap中的第二个比特对应频域资源2，第三个比特对应频域资源3，且该两个比特均指示“1”，表示盘存信息1与频域资源2、频域资源3相对应，以及第四个比特指示“0”表示盘存信息1与频域资源4不对应。第一装置若接收到该第一信令，可以基于第一指示信息1确定盘存信息1对应的频域资源为频域资源2和频域资源3。其他盘存信息对应的第一指示信息也可以采用该方式指示盘存信息对应的频域资源，为了简要在此不再赘述。
可选地，该第一信令还可以包括上述用于指示第一数量的第二指示信息。
例如图15所示，该第二指示信息在第一信令的头部字段中，第一装置接收到该第一信令后可以根据该第一数量确定第一信令中包含的盘存信息的数量，以及该第一信令中的每个盘存信息还包括一个第一指示信息和一个第三指示信息，第一装置根据每个盘存信息的第一指示信息确定该盘存信息对应的频域资源，根据第三指示信息确定该盘存信息的信息类型。图16示出了一个具体示例，第一信令头部字段中的第二指示信息指示“10”表示该第一信令中包括2个盘存信息，该第一信令中的第一指示信息包含2比特，一种方式中，该2比特指示频域资源的索引，如“00”指示频域资源1，“01”指示频域资源2，“10”指示频域资源3，“11”指示频域资源4，则盘存信息1中的第一指示信息指示“01”表示盘存信息1对应频域资源2，盘存信息2中的第一指示信息指示“10”表示该盘存信息2对应频域资源3。另一种方式中，该第一指示信息的2比特为bitmap，如第一比特对应频域资源1，第二比特对应频域资源2，则盘存信息1中的第一指示信息指示“01”表示盘存信息1对应频域资源2，盘存信息2中的第一指示信息指示“10”表示该盘存信息2对应频域资源1。以 及，盘存信息中的第三指示信息指示了盘存信息的类型，如盘存信息1中的第三指示信息指示“010”可以表示盘存信息1为盘存询问重复信息，以及盘存信息2中的第三指示信息指示“100”可以表示盘存信息1为盘存否定确认信息。但本申请不限于此。
实施方式C，该第一信令还包括第一比特组，该第一比特组中的多个比特与该多个频域资源相对应，该第一比特组中的一个比特用于指示该第一信令中包括该一个比特对应的频域资源对应的盘存信息，或者，用于指示该第一信令中不包括该一个比特对应的频域资源对应的盘存信息。
例如，第一信令包括一个头部字段，该第一比特组可以包括在第一信令的头部字段中，如图17所示，该第一比特组位于LCID信息之后，例如该第一比特组为4个比特的bitmap，每个比特对应4个频域资源中的一个资源，如该4个比特与频域资源1至频域资源4依次对应，如4个比特为“1011”，第一个比特指示“1”表示该第一信令中的第一个盘存信息对应的频域资源为频域资源1，第二个比特指示“0”表示该第一信令不包括频域资源2对应的盘存信息，第三个比特、第四比特均指示“1”表示该第一信令中的第二个盘存信息、第三个盘存信息分别对应频域资源3、频域资源4。第一装置接收到该第一信令后，根据该第一比特组中指示“1”的比特数可以确定该第一信令中包含的盘存信息的个数，以及根据第一比特组中指示“1”的比特的排序可以确定每个盘存信息对应的频域资源。可选地，图17所示该第一信令中的每个盘存信息可以包括用于指示信息类型的一个第一指示信息和一个第三指示信息。或者，与多个盘存信息对应的多个第三指示信息可以包含在第一信令的头部字段，且本申请对该多个第三指示信息与该第一比特组在头部字段中的排列顺序不作限定。实施方式D，基于盘存信息的信息类型不同，第一信令中的盘存信息可以包括或不包括第一指示信息。
可选地，信息类型为询问类型的盘存信息可以不包括第一指示信息，询问类型的盘存信息可以包括盘存询问信息、盘存询问重复信息、盘存询问调节信息。第一信令中的询问类型的盘存信息对应的频域资源可以是第一信令中其他类型(如盘存确认信息、盘存否定信息)的盘存信息对应的频域资源以外的频域资源。
一个示例中，询问类型的盘存信息可以不包括第一指示信息。而询问类型以外的信息类型的盘存信息包括第一指示信息，如盘存确认信息、盘存否定确认信息。第一装置接收到第一信令后，可以根据第一信令中包含第一指示信息的盘存信息确定包含第一指示信息的盘存信息对应的频域资源，而第一信令中的第一指示信息指示的频域资源以外的频域资源为不包含第一指示信息的盘存信息对应的频域资源。
例如，信道带宽中包括4个频域资源，第一信令中包括两个盘存确认信息，每个盘存确认信息对应的一个第一指示信息，其中，一个第一指示信息指示相应的盘存确认信息对应频域资源1，另一个第一指示信息指示相应的盘存确认信息对应频域资源3。比如，其中一个盘存确认信息确认第二装置在频域资源1上接收到的RN16信息1，另一个盘存确认信息确认第二装置在频域资源3上接收到的RN16信息2。若一个通信装置在接收到第一信令之前，在频域资源1上发送了该RN16信息1，则该通信装置在接收到该第一信令后可以在频域资源1向第二装置反馈身份信息(如EPC)，或一个通信装置在接收到第一信令之前，在频域资源3上发送了该RN16信息2，则该通信装置在接收到该第一信令后可以在频域资源3向第二装置反馈身份信息(如EPC)。
第一信令除上述两个盘存信息以外还包括一个盘存询问重复信息，共包括3个盘存信 息。该第一信令可以不包括该盘存询问重复信息对应的第一指示信息，该盘存询问重复信息对应频域资源为该第一信令中的两个盘存确认信息对应的频域资源以外的频域资源，即该盘存重复询问信息对应频域资源2和频域资源4。由于非询问类的盘存信息(如盘存确认信息)需要相应地通信装置在对应的频域资源上发送响应信息，因此，询问类的盘存信息可以与非询问类的盘存信息对应的频域资源以外的频域资源相对应。若一个通信装置在接收到询问类的盘存信息后计数值为0，则可以在该盘存信息对应的频域资源中的一个频域资源上发送RN16信息，可选地，若该询问类的盘存信息对应多个频域资源，该通信装置可以随机选择一个频域资源发送RN16信息。
在上述实施方式中，盘存确认信息对应的频域资源可以是第二装置确认接收到临时标识信息的频域资源，并且可以规定一个通信装置(如一个标签)在盘存过程中仅在一个频域资源上发送上行信息，如一个标签在频域资源2上发送了RN16信息，则该通信装置接收到盘存确认信息后，也将在该频域资源2上发送身份信息。但本申请不限于此，在另一种实施方式中，第一信令包括盘存确认信息，该盘存确认信息可以对应多个频域资源，该多个频域资源中包括确认已接收到RN16信息的频域资源，以及通信装置发送身份信息的频域资源。
例如，一个盘存确认信息对应2个频域资源，比如第一指示信息可以包括4比特，前2个比特用于指示确认已接收到RN16信息的频域资源，后2个比特用于指示通信装置发送身份信息的频域资源。如该第一指示信息指示“1000”，则前2个比特为“10”表示第二装置在频域资源3接收到了RN16信息，具体接收到的RN16信息中的标识信息可以包含在该盘存确认信息的信息字段中，比如第一装置接收第一信令前在频域资源3上发送了RN16信息，该RN16信息包括该第一装置的标识信息，该盘存确认信息中的信息字段包括该第一装置的标识信息，第一装置确定第二装置接收到了其发送的RN16信息，则第一装置在后2个比特“00”指示频域资源1上发送身份信息。在该实施方式中，若第一信令还包括询问类盘存信息，该询问类的盘存信息对应的频域资源为盘存确认信息中指示发送身份信息的频域资源1以外的频域资源。
询问类型的盘存信息对应的频域资源可以是通信装置发送该询问类型的盘存信息的响应信息的频域资源。另外，第一信令中的盘存信息还可以是盘存否定(NACK)信息，该盘存否定信息对应的频域资源可以是第二装置未成功解出身份信息的频域资源。例如，通信装置向第二装置在频域资源A上发送了EPC，但是第二装置并未成功解出该EPC，如CRC校验未成功等。该第二装置可以向该通信装置发送盘存否定信息，该盘存否定信息对应的频域资源为频域资源A，表示第二装置在频域资源A未成功解出EPC。发送该EPC的通信装置接收到该盘存否定信息后，可以确定第二装置为未成功接收到其发送的EPC，则该通信装置将参与下一轮盘存。
S602，第一装置在第一频域资源上发送第一信息，该第一信息为第一盘存信息的响应信息。
相应地，第二装置在第一频域资源接收来自第一装置的该第一信息。
例如，第一盘存信息可以是盘存询问信息，该盘存询问信息可以对应该第一频域资源，或者，该盘存询问信息可以对应多个频域资源，该多个频域资源中包括该第一频域资源，第一装置接收到该第一信令后，基于该盘存询问信息将计数值减1后计数值为0，则第一装置在该第一频域资源上发送RN16信息(即第一信息的一个示例)，以响应第二装置的 盘存询问信息。若盘存询问信息对应多个频域资源，第一装置可以在该多个频域资源中随机选择到第一频域资源发送RN16信息。该RN16信息包括第一装置的标识信息。或者，第一盘存信息还可以是其他询问类的盘存信息，本申请对此不作限定。
再例如，第一盘存信息可以是盘存确认信息。第一装置在接收第一信令之前，在第一频域资源上发送了RN16信息，该RN16信息包括该第一装置的标识信息。第一装置接收到该第一信令，该盘存确认信息指示第二装置在第一频域资源上接收到了第一装置的标识信息，则该第一装置在第一频域资源上发送身份信息(即第一信息)，以响应第二装置的盘存确认信息。
可选地，第一信令中包括第二盘存信息，第三装置在第二频域资源上发送该第二盘存信息的响应信息。
信道带宽划分了用于承载上行信息的多个频域资源，使得多个装置的可以并行的执行盘存流程。能够提高资源利用率，减小了上行信息资源冲突的概率以及盘存流程的时延，能够提高盘存的效率。
可选地，第一信令可以包括多个询问类型的盘存信息，计数值不为0的通信装置基于第一信令中询问类型的盘存信息的个数K，确定计数值减1的次数K，或者确定计数值减K。当计数值减到0或者计数值减K后不为正数，则通信装置发送RN16信息。
例如，第一信令中包括2个盘存询问重复信息，则计数值不为0的通信装置接收到该第一信令后可以确定执行2次计数值减1，若其中一次减1后计数值为0，则该通信装置确定向第二装置发送RN16信息。或者，计数值不为0的通信装置将计数值减2，若得到的计数值不是正数，则通信装置确定向第二装置发送RN16信息。
一个示例中，该多个询问类型的盘存信息在第一信令中依次排列，且对应不同的频域资源，通信装置若第一次将计数值减1后计数值为0，则该通信装置在第一个询问类型的盘存信息对应的频域资源上发送RN16信息；若第二次将计数值减1后计数值为0，则该通信装置在第二个询问类型的盘存信息对应的频域资源上发送RN16信息，其他以此类推。
另一个示例中，该多个询问类型的盘存信息对应多个频域资源，如该多个询问类型的盘存信息不包括第一指示信息，其对应非询问类盘存信息以外的多个频域资源，发送RN16信息的通信装置可以在多个询问类型的盘存信息对应的多个频域资源中随机选择一个频域资源发送RN16信息。可选地，多个询问类型的盘存信息的个数可以少于对应的频域资源的个数，能够减小冲突的概率，但本申请不限于此。
可选地，若第一信令中仅包含一个询问类型的盘存信息，该询问类型的盘存信息对应多个频域资源。多个通信装置中的通信装置可以根据多个频域资源中的频域资源的个数减少计数器的计数值。
例如，该多个频域资源中频域资源的个数为4，若一个通信装置计数值减1后计数值为0，则该通信装置在该4个频域资源中按照频率顺序排列的第一个频域资源上发送RN16信息；若另一个通信装置计数值减2后计数值为0，则该通信装置在该4个频域资源中按照频率顺序排列的第二个频域资源上发送RN16信息。而在第三个频域资源上，可以承载计数值减3后计数值为0的通信装置发送的RN16信息，而在第四个频域资源上，可以承载计数值减4后计数值为0的通信装置发送的RN16信息。但本申请不限于此，通信装置还可以按照频率资源的标识信息的由大到小或由小到大的顺序，确定相应的发送RN16信息的频域资源，或者基于其他方式确定。
或者，一个通信装置的计数值减1后计数值为0，该通信装置在第一个和第二个频域资源上发送RN16信息，一个通信装置的计数值减2后计数值为0，该通信装置在第三个和第四个频域资源上发送RN16信息。但本申请不限于此。
可选地，第一信令中仅包含一个询问类型的盘存信息，该询问类型的盘存信息对应多个频域资源，则该第一信令可以一个指示信息，用于指示发送RN16信息的方式。比如该指示信息包括1比特，该1比特为0时，计数值减1后计数值为0的通信装置发送RN16信息。该1比特为1时，计数值减1后计数值为0的通信装置以及计数值减2后计数值为0的通信设备均发送RN16信息。这些通信装置可以在该询问类型的盘存信息对应的多个频域资源上随机选择一个频域资源发送RN16信息。
或者，该第一信令中也可以不包含该指示信息，可以基于响应盘存信息的方式定义两个种类的询问类型的盘存信息，其中一个种类的询问类型的盘存信息，需要由计数值减1后计数值为0的通信装置响应该盘存信息，发送RN16信息；另一个种类的询问类型的盘存信息，可以由计数值减1后计数值为0的通信装置，计数值减2后计数值为0的通信装置响应该盘存信息，发送RN16信息。该两个种类的询问类型的盘存信息可以通过第三指示信息指示，如可以通过不同的LCID信息指示。应理解，上述需要多个通信装置响应的询问类型的盘存信息，可以基于具体实施确定需要响应的通信装置计数值减小的数值，上述仅以计数值减1后为0的通信装置和计数值减2后为0的通信装置均响应该种类的询问类型的盘存信息为例进行说明，但本申请不限于此。
在一种实施方式中，第二装置可以对一个通信装置组进行盘存，该通信装置组的盘存信息可以复用(或者说承载在)同一个信令(如第一信令)，该通信装置组中的一个通信装置可以在多个频域资源中的一个频域资源发送上行信息，例如，通信装置可以在盘存询问信息对应的一个或多个频域资源中随机选择一个频域资源发送上行信息，且在盘存流程中选定一个频域资源后，上行信息均在该频域资源上发送。或者通信装置可以基于盘存信息的指示，确定发送上行信息的频域资源。本申请对此不作限定。
例如图17A所示，信道带宽包括用于发送上行信息的多个频域资源，第二装置为阅读器。该阅读器向一个标签组发送盘存询问信息后，该标签组中的标签1的计数值为0，则标签1可以在多个频域资源中的频域资源1上发送RN16信息，该RN16信息包括第一装置的临时标识信息。阅读器在频域资源1上接收到RN16信息后，发送第一信令，该第一信令包括2个盘存信息，其中一个为盘存确认信息，该盘存确认信息用于指示第二装置确认在频域资源1上接收到了第一装置的临时标识信息，则标签1接收到第一信令后响应于盘存确认信息在频域资源1上发送EPC信息。该第一信令还包括盘存询问重复信息，该标签组中计数值不为0的标签接收到该第一信令后，基于盘存询问重复信息，将计数值减1，其中标签2的计数值减1后为0，则标签2可以在频域资源2上发送RN16信息。
一个示例中，阅读器发送的询问信息可以对应一个或多个频域资源，该一个或多个频域资源包括频域资源1，标签1在该一个或多个频域资源中选择频域资源1发送上行信息，例如可以是随机选择的，但本申请不限于此。这种实施方式中，标签可以在多个频域资源中随机选择一个频域资源发送RN16信息，若该标签组中的多个标签的计数值为0时，可以减小标签资源碰撞的概率，提高盘存的效率。第一信令中的盘存询问重复信息可以对应一个或多个频域资源，如第一信令包括该盘存询问重复信息对应的第一指示信息，该第一指示信息指示了该盘存询问重复信息对应的频域资源(如频域资源1以外的频域资源)， 标签2可以在盘存询问重复信息对应的频域资源中选择频域资源2发送RN16信息。实现了不同标签可以同时执行盘存流程，提高了阅读器对标签盘存的效率。
在该实施方式中，阅读器可以将该标签组的多个盘存信息承载在同一信令中发送给该标签组，而对于不同标签组，第二装置可以在不同时刻发送不同标签组的盘存信息。
在另一种实施方式中，第二装置可以对多个通信装置组进行盘存，其中，每个通信装置组对应一个或多个频域资源。不同通信装置组的盘存信息可以复用(或者说承载在)一个信令(如第一信令)中。每个通信装置组中的通信装置在该通信装置组对应的频域资源上发送上行信息。第一信令可以包括一个或多个通信装置组的盘存信息，具体每个通信装置组中的通信装置可以根据盘存信息对应的频域资源确定是否为该通信装置组的盘存信息。
例如，该多个通信装置组中的通信装置配置有该通信装置所属的通信装置组的组号与频域资源的对应关系，比如，通信装置组1对应频域资源1和频域资源2，通信装置组2对应频域资源3和4。一个通信装置接收到一个信令后，可以基于盘存信息对应的频域资源2，通信装置组1中的通信装置可以确定该盘存信息为该通信装置组1的盘存信息。通信装置组2中的通信装置可以确定盘存信息不是该通信装置组2的盘存信息。
可选地，第二装置可以通过通知信息(例如，选择(select)信息)通知该通信装置组中通信装置，该通信装置组对应的频域资源。
例如图18所示，信道带宽包括用于发送上行信息的多个频域资源，第二装置为阅读器，标签组1用于发送上行信息的频域资源为频域资源1，标签组2用于发送上行信息的频域资源为频域资源2。该阅读器发送信令1(即第一信令的一个示例)，该信令1包括盘存询问信息1和盘存询问信息2，其中盘存询问信息1对应频域资源1，盘存询问信息2对应频域资源2，标签组1中的标签可以确定信令1中的盘存询问信息1为该标签组1的盘存信息，该标签组1中包含计数值为0的标签，则该标签在频域资源1上发送RN16信息，标签组2中的标签1可以确定盘存询问信息2为该标签组2的盘存信息，该标签组2中包含计数值为0的标签2，则该标签在频域资源2上发送RN16信息，若该标签组1或标签组2中不包含计数值为0的标签，则相应的频域资源上不承载RN16信息。阅读器分别在频域资源1、频域资源2上接收到RN16信息后，发送信令2(即第一信令的另一个示例)，该信令2中可以包括频域资源1对应的盘存确认信息1(即ACK1)和频域资源2对应的盘存确认信息2(即ACK2)。每组标签基于盘存信息对应的频域资源，确定属于该标签组的盘存信息并在相应地频域资源上发送相应地响应信息。如标签1响应于盘存确认信息1发送该标签1的EPC信息，标签2响应于盘存确认信息2发送该标签2的EPC信息。
以上示例中通信装置基于盘存信息对应的频域资源是否与通信装置组对应的频域资源一致，判断该盘存信息是否为该通信装置组的盘存信息。但本申请不限于此，可选地，盘存信息可以包括通信装置组的标识信息，通信装置接收到盘存信息后，可以基于盘存信息中的通信装置组的标识信息确定该盘存信息是否为该通信装置组的盘存信息。
根据本申请实施例的方案，阅读器可以在一个信令中发送多个盘存信息，每个盘存信息对应至少一个频域资源，能够实现多个标签在不同频域资源上并行执行盘存流程，提高了资源利用率，减小了盘存的时延，提高了阅读器盘存的效率。
需要说明的是，本申请实施例一以盘存信息为例说明了当信道带宽包含多个频域资源 时，多个下行信息可以复用在同一信令(如第一信令)中，应理解本申请提供的技术方案并不限于盘存信息，对于非盘存相关的信息(如读(read)信息、写(write)信息等)也可以采用类似的方式复用在同一信令中，该信令中的每个信息(可以是盘存信息，也可以是非盘存相关的信息)可以对应信道带宽中的至少一个频域资源。具体实施方式可以参考前文中的描述，为了简要，在此不再赘述。
实施例二：
图19为本申请实施例提供的通信方法的另一个示意性流程图。图19所示的第二装置可以是阅读器，或第二装置配置于阅读器，第一装置可以是标签，或第一装置配置于标签。该方法可以包括但不限于如下步骤：
S1901，第二装置发送第二信息和盘存信息，该第二信息用于指示信道带宽中的多个频域资源。
相应地，第一装置接收第二信息和盘存信息。可选地，该盘存信息可以是盘存询问信息、盘存确认信息、盘存询问重复信息或盘存询问调节信息。该盘存信息用于通信装置的盘存，通信装置包括第一装置，可以是标签。
该第二信息和盘存信息可以承载在第二装置发送的同一信令中，或者，第二信息和该盘存信息可以分别承载在第二装置在不同时刻发送的两个信令中。本申请对此不作限定。
可选地，该实施例可以与实施例一结合实施，如该盘存信息可以是上述第一信令中的多个盘存信息中的一个，该第一信令还可以包括第二信息，或者第二信息包含在第二装置发送的其他信令中。但本申请不限于此，该盘存信息可以承载在不包含其他盘存信息的信令中。
信道带宽中包括用于传输上行信息的多个频域资源。可选地，第二信息指示的信道带宽中的多个频域资源可以是信道带宽中包含的所有频域资源。或者，第二信息指示的该多个频域资源可以是信道带宽中的部分频域资源，如第二信息指示的该多个频域资源可以是第一装置(或者第一装置所在的装置组)的可用的频域资源。第一装置可以在该多个频域资源上发送上行信息。
可选地，该第二信息可以指示该多个频域资源的标识信息，或者，该第二信息可以指示该多个频域资源的资源参数。
例如，信道带宽包含的频域资源可以是预配置的，或者，第二装置在第二信息之前通知第一装置信道带宽包含的频域资源，每个频域资源对应一个标识信息，或者说每个频域资源由一个标识信息标识。比如该标识信息可以是索引(index或编号等)，第二信息包括该多个频域资源中每个频域资源的标识信息，第一装置接收到该第二信息后可以基于第二信息包含的标识信息确定该多个频域资源。
再例如，该第二信息包括该多个频域资源中每个频域资源的资源参数，如该频域资源的预设频率(如起始点频率、中心点频率或终止点频率)、频域宽度(如该频域资源的带宽)、信息比特的重复次数或一个码元的传输时长的重复次数中的一项或多项。其中，一个信息比特编码后得到的信息比特组成一个码元，一个码元的传输时长为一个信息比特对应的传输时长，即一个信息比特编码后得到的编码比特的传输时长。第一装置接收到该第二信息后，根据该第二信息中每个频域资源的资源参数，确定该多个频域资源。
S1902，第一装置根据该盘存信息，在第一频域资源上发送第一装置的第一标识信息。
相应地，第二装置在该第一频域资源上接收该第一标识信息。该盘存信息对应该多个频域资源中的至少一个频域资源，其中该至少一个频域资源包括该第一频域资源。
一种实施方式中，该第一装置在第二信息指示的多个频域资源中选择该第一频域资源发送上行信息。例如该第一频域资源可以是第一装置在多个频域资源中随机选择的。
另一种实施方式中，该第一装置接收来自该第二装置的第三信息，该第三信息用于指示该第一装置在该第一频域资源传输上行信息。
可选地，该第三信息具体用于指示第一装置组在第一频域资源上传输上行信息，其中该第一装置组包括该第一装置。
第一装置接收到该第三信息后，第一装置向第二装置发送的上行信息均承载在该第一频域资源上。
另一种实施方式中，该盘存信息包括第一指示信息，该第一指示信息用于指示该盘存信息对应的频域资源。
也就是说，该盘存信息中的第一指示信息指示了该盘存信息对应的频域资源，该频域资源承载该盘存信息的响应信息。第一装置接收到该盘存信息，第一装置确定需要响应该盘存信息，则第一装置在该第一频域资源上发送该盘存信息的响应信息。
一个示例中，该盘存信息可以是盘存确认信息，如第一装置在接收到该盘存信息之前发送了RN16信息，该盘存确认信息用于指示第二装置接收到了第一装置的RN16信息，如该盘存确认信息包括该第一装置发送的临时标识信息。则第一装置响应于该盘存确认信息，在第一频域资源上发送身份信息(即该身份信息为第一标识信息的一个示例)，如EPC信息。
在该示例中，该盘存确认信息可以不包括第一指示信息，第一装置可以是在第一频域资源上发送了RN16信息，则第一装置接收到该盘存确认信息后，继续使用该第一频域资源发送身份信息。例如，可以预先规定通信装置在同一频域资源上发送不同的上行信息，使得第一装置与第二装置达成共识，第二装置在接收到第一装置的RN16信息的第一频域资源上，接收第一装置的身份信息。或者，该盘存确认信息中包括第一指示信息，该第一指示信息指示了该第一频域资源，该第一频域资源用于传输盘存确认信息的响应信息，则第一装置根据该第一指示信息，在第一频域资源上发送身份信息。
另一个示例中，该盘存信息可以是盘存询问信息，盘存询问重复信息或盘存询问调节信息，第一装置根据该盘存信息，将计数值减1后计数值为0，则第一装置发送RN16信息，该RN16信息包括该第一装置的临时标识信息(即第一标识信息的一个示例)，比如第一装置可以生成的16位随机数作为该第一装置的临时标识信息。第一装置可以在第二信息指示的多个频域资源中随机选择了该第一频域资源发送该RN16信息，或者，该盘存询问信息包括第一指示信息，该第一指示信息指示了该盘存询问信息对应的第一频域资源，则第一装置在该第一频域资源上发送该RN16信息，或者第一指示信息指示了盘存询问信息对应的多个频域资源，该多个频域资源包括第一频域资源，第一装置在第一指示信息指示的多个频域资源中随机选择了该第一频域资源发送该RN16信息。
可选地，该第二装置向第一装置发送盘存确认信息，该盘存确认信息包括至少一个标识信息，该至少一个标识信息为第二装置确认在多个频域资源中接收到的标识信息，该至少一个标识信息包括该第一标识信息。
例如，该第一标识信息为该第一装置的临时标识信息，第二装置在第一频域资源接收 到该第一标识信息后，发送该盘存确认信息，该盘存确认信息包括第二装置在该多个频域资源上接收到的至少一个标识信息，如第二装置除了在第一频域资源接收到该第一标识信息以外，还在第二频域资源接收到了第二标识信息，则该盘存确认信息还包括第二频域资源接收到的该第二标识信息。如第二装置在第三频域资源上未接收到(或未成功接收到)标识信息，则该盘存确认信息中不包括第三频域资源对应的标识信息。
可选地，该盘存确认信息可以不包括频域资源的指示信息，通信装置接收到来自该盘存确认信息后，若盘存确认信息中包含了该通信装置在接收到该盘存确认信息之前发送的标识信息，则该通信装置可以确定第二装置确认接收到了其发送的标识信息，该通信装置可以向第二装置发送身份信息；若盘存确认信息中不包含该通信装置发送的标识信息，则该通信装置确定第二装置未接收到其发送的标识信息。
可选地，该盘存确认信息包括第二数量，该第二数量为该盘存确认信息中包含的标识信息的数量。第一装置可以根据该第二数量确定该盘存确认信息的长度。
可选地，该盘存确认信息还可以包括第四指示信息，该第四指示信息用于指示盘存确认信息中的每个标识信息对应的多个频域资源中的一个频域资源。
第四指示信息可以包括但不限于如下两种指示方式：
方式一，该第四指示信息包括第二比特组(如位图(bitmap))，该第二比特组中的多个比特与该多个频域资源一一对应，该第二比特组中的一个比特用于指示该盘存确认信息中包括在该一个比特对应的频域资源上接收到的标识信息，或者用于指示该盘存确认信息中不包括在该一个比特对应的频域资源接收到的标识信息。
该盘存确认信息可以包括如图20所示的第二比特组和n个标识信息。例如，第二信息指示了4个频域资源，该第二比特组包括4个比特，其中该4个比特与4个频域资源依次对应，一个比特指示“1”表示该盘存确认信息中包括该比特对应的频域资源上接收到的标识信息，指示“0”表示该盘存确认信息中不包括该比特对应的频域资源上接收到的标识信息。比如该第二比特组的4个比特为“1011”，第一装置可以根据该第二比特组中指示“1”的比特个数，确定该盘存确认信息中包含的标识信息的个数。并且根据指示“1”的比特的位置，确定接收到标识信息的频域资源，如根据第一个比特指示“1”确定盘存确认信息中的第一个标识信息，即标识信息1为频域资源1上接收到的标识信息，第二个比特指示“0”表示未在频域资源2上接收到标识信息，第三个比特指示“1”表示盘存确认信息中的第二个标识信息(即第三个比特为第二个指示“1”的比特)为频域资源3上接收到的标识信息，同理，根据第四个比特指示“1”可以确定盘存确认信息中的第三个标识信息为频域资源4上接收到的标识信息。
方式二，该第四指示信息包括至少一个指示域，该盘存至少一个指示域与该至少一个标识信息一一对应，一个该指示域用于指示接收到该一个该指示域对应的该标识信息的频域资源。
该盘存确认信息可以包括如图21所示的n个指示域以及每个指示域对应的标识信息。例如，第二信息指示了4个频域资源，第二装置在第一频域资源接收到了第一装置发送的第一标识信息，以及在第二频域资源接收到了第二标识信息，则该盘存确认信息包括2个指示域和2个标识信息，其中，指示域1可以指示第一频域资源，如第一频域资源的索引为00，则指示域1指示00，且指示域1对应的标识信息为第一标识信息，第一装置接收到该盘存确认信息后可以确定第二装置接收到了其发送的第一标识信息。该盘存确认信息 还包括指示域2，如第二频域资源的索引为01，则指示域2指示01，且指示域2对应的标识信息为第二标识信息。
可选地，实施例一中的第一指示信息可以包括该第四指示信息，即该第四指示信息指示的接收到标识信息的频域资源可以是盘存确认信息对应的频域资源。可选地，第一指示信息还可以指示承载该盘存确认信息的响应信息的频域资源，即该盘存确认信息对应的频域资源还可以包括该盘存确认信息的响应信息的频域资源。
需要说明的是，本申请中实施例一和实施例二中的各个实施方式可以单独实施，也可以相互引用、结合实施，上述实施方式相互结合实施的方案也应在本申请的保护范围内。
以上，结合图6至图21详细说明了本申请实施例提供的方法。以下附图说明本申请实施例提供的通信装置和通信设备。为了实现上述本申请实施例提供的方法中的各功能，各网元可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
图22是本申请实施例提供的通信装置的示意性框图。如图22所示，该通信装置2200可以包括收发单元2220。
在一种可能的设计中，该通信装置2200可对应于上文方法实施例中的第一装置，或者其他能够实现第一装置的方法的装置、模块、电路或单元等。
应理解，该通信装置2200可以包括用于执行图6、图19所示的方法中第一装置执行的方法的单元。并且，该通信装置2200中的各单元和上述其他操作和/或功能分别为了实现图6、图19所示的方法的相应流程。
可选地，通信装置2200还可以包括处理单元2210，该处理单元2210可以用于处理指令或者数据，以实现相应的操作。
还应理解，该通信装置2200为芯片时，该通信装置2200中的收发单元2220可以为芯片的输入/输出接口或电路，该通信装置2200中的处理单元2210可以为芯片中的处理器。
可选地，通信装置2200还可以包括存储单元2230，该存储单元2230可以用于存储指令或者数据，处理单元2210可以执行该存储单元中存储的指令或者数据，以使该通信装置实现相应的操作。
应理解，该通信装置2200中的收发单元2220为可通过通信接口(如收发器或输入/输出接口)实现，例如可对应于图23中示出的通信设备2300中的收发器2310。该通信装置2200中的处理单元2210可通过至少一个处理器实现，例如可对应于图23中示出的通信设备2300中的处理器2320。该通信装置2200中的处理单元2210还可以通过至少一个逻辑电路实现。该通信装置2200中的存储单元2230可对应于图23中示出的通信设备2300中的存储器。
还应理解，各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明，为了简洁，在此不再赘述。
在一种可能的设计中，该通信装置2200可对应于上文方法实施例中的第二装置，或者其他能够实现第二装置的方法的装置、模块、电路或单元等。
应理解，该通信装置2200可以包括用于执行图6、图19所示的方法中第二装置执行的方法的单元。并且，该通信装置2200中的各单元和上述其他操作和/或功能分别为了实 现图6、图19所示的方法的相应流程。
可选地，通信装置2200还可以包括处理单元2210，该处理单元2210可以用于处理指令或者数据，以实现相应的操作。
还应理解，该通信装置2200为芯片时，该通信装置2200中的收发单元2220可以为芯片的输入/输出接口或电路，该通信装置2200中的处理单元2210可以为芯片中的处理器。
可选地，通信装置2200还可以包括存储单元2230，该存储单元2230可以用于存储指令或者数据，处理单元2210可以执行该存储单元中存储的指令或者数据，以使该通信装置实现相应的操作。
应理解，该通信装置2200中的收发单元2220为可通过通信接口(如收发器或输入/输出接口)实现，例如可对应于图23中示出的通信设备2300中的收发器2310。该通信装置2200中的处理单元2210可通过至少一个处理器实现，例如可对应于图23中示出的通信设备2300中的处理器2320。该通信装置2200中的处理单元2210还可以通过至少一个逻辑电路实现。该通信装置2200中的存储单元2230可对应于图23中示出的通信设备2300中的存储器。
还应理解，各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明，为了简洁，在此不再赘述。
图23是本申请实施例提供的通信设备2300的结构示意图。
一种实施方式中，该通信设备2300可应用于如图1所示的系统中，可以与图1所示的系统中的标签102相对应，执行上述方法实施例中第一装置的功能，如通信设备2300作为标签时可以配置有第一装置。如图所示，该通信设备2300包括处理器2320和收发器2310。可选地，该通信设备2300还包括存储器。其中，处理器2320、收发器2310和存储器之间可以通过内部连接通路互相通信，传递控制信号和/或数据信号。该存储器用于存储计算机程序，该处理器2320用于执行该存储器中的该计算机程序，以控制该收发器2310收发信号。
上述处理器2320可以用于执行前面方法实施例中描述的由通信设备内部实现的动作，而收发器2310可以用于执行前面方法实施例中描述的第一装置向第二装置发送或从第二装置接收的动作。具体请见前面方法实施例中的描述，此处不再赘述。
可选地，上述通信设备2300还可以包括电源，用于给通信设备中的各种器件或电路提供电能。
另一种实施方式中，该通信设备2300可应用于如图1所示的系统中，可以与图1所示的系统中的阅读器101相对应，执行上述方法实施例中第二装置的功能，如通信设备2300作为阅读器时可以配置有第二装置。如图所示，该通信设备2300包括处理器2320和收发器2310。可选地，该通信设备2300还包括存储器。其中，处理器2320、收发器2310和存储器之间可以通过内部连接通路互相通信，传递控制信号和/或数据信号。该存储器用于存储计算机程序，该处理器2320用于执行该存储器中的该计算机程序，以控制该收发器2310收发信号。
上述处理器2320可以用于执行前面方法实施例中描述的由通信设备内部实现的动作，而收发器2310可以用于执行前面方法实施例中描述的第二装置向第一装置发送或从第一装置接收的动作。具体请见前面方法实施例中的描述，此处不再赘述。
可选地，上述通信设备2300还可以包括电源，用于给通信设备中的各种器件或电路提供电能。
本申请实施例还提供了一种处理装置，包括处理器和(通信)接口；该处理器用于执行上述任一方法实施例中的方法。
应理解，上述处理装置可以是一个或多个芯片。例如，该处理装置可以是现场可编程门阵列(field programmable gate array，FPGA)，可以是专用集成芯片(application specific integrated circuit，ASIC)，还可以是系统芯片(system on chip，SoC)，还可以是中央处理器(central processor unit，CPU)，还可以是网络处理器(network processor，NP)，还可以是数字信号处理电路(digital signal processor，DSP)，还可以是微控制器(micro controller unit，MCU)，还可以是可编程控制器(programmable logic device，PLD)或其他集成芯片。
根据本申请实施例提供的方法，本申请还提供一种计算机程序产品，该计算机程序产品包括：计算机程序代码，当该计算机程序代码由一个或多个处理器执行时，使得包括该处理器的装置执行图6、图19所示实施例中的方法。
本申请实施例提供的技术方案可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行该计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。上述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，该计算机可读存储介质可以是计算机可以存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。该可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(digital video disc，DVD))、或者半导体介质等。
根据本申请实施例提供的方法，本申请还提供一种计算机可读存储介质，该计算机可读存储介质存储有程序代码，当该程序代码由一个或多个处理器运行时，使得包括该处理器的装置执行图6、图19所示实施例中的方法。
根据本申请实施例提供的方法，本申请还提供一种系统，其包括前述的一个或多个第一装置。还系统还可以进一步包括前述的一个或多个第三装置。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (30)

  1. 一种通信方法，其特征在于，包括：
    第一装置接收来自第二装置的第一信令，所述第一信令包括多个盘存信息，所述多个盘存信息中的每个盘存信息对应多个候选频域资源中的至少一个频域资源，其中，所述多个盘存信息包括第一盘存信息，所述第一盘存信息对应所述多个候选频域资源中的第一频域资源；
    所述第一装置在第一频域资源上发送第一信息，所述第一信息用于响应所述第一盘存信息。
  2. 根据权利要求1所述的方法，其特征在于，所述多个盘存信息按照在所述第一信令中的排列顺序与所述多个频域资源按照频率顺序依次对应，或者，
    所述多个盘存信息中的一个盘存信息包括一个第一指示信息，所述第一指示信息用于指示所述一个所述盘存信息对应的频域资源，或者，
    所述第一信令还包括第一比特组，所述第一比特组中的多个比特与所述多个候选频域资源一一对应，所述第一比特组中的一个比特用于指示所述第一信令中包括所述一个比特对应的频域资源对应的盘存信息，或者，用于指示所述第一信令中不包括所述一个比特对应的频域资源对应的盘存信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一信令还包括第二指示信息，所述第二指示信息用于指示第一数量，所述第一数量为所述多个盘存信息中盘存信息的数量。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述多个盘存信息与第一信令中的多个第三指示信息相对应，一个所述第三指示信息用于指示对应的盘存信息的信息类型。
  5. 根据权利要求4所述的方法，其特征在于，所述第一信令包括一个头部字段，
    所述第一信令的头部字段包括所述多个第三指示信息，所述多个第三指示信息按照排列顺序与所述多个盘存信息按照排列顺序依次对应，或者，
    所述多个盘存信息中的一个盘存信息中包含一个所述第三指示信息。
  6. 根据权利要求4所述的方法，其特征在于，所述多个盘存信息中的每个盘存信息包括一个头部字段，一个所述盘存信息的头部字段包括一个所述第三指示信息。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一装置接收来自所述第二装置的第二信息，所述第二信息用于指示所述多个候选频域资源。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述第一盘存信息为确认信息，所述确认信息包括至少一个标识信息，所述至少一个标识信息为所述第二装置确认在所述多个候选频域资源上接收到的标识信息。
  9. 根据权利要求8所述的方法，其特征在于，所述确认信息还包括第二数量，所述第二数量为所述确认信息中标识信息的数量。
  10. 根据权利要求8或9所述的方法，其特征在于，所述确认信息还包括第四指示信息，所述第四指示信息用于指示所述确认信息中的每个所述标识信息对应的所述多个候选频域资源中的一个频域资源。
  11. 根据权利要求10所述的方法，其特征在于，
    所述第四指示信息包括第二比特组，所述第二比特组中的多个比特与所述多个候选频域资源一一对应，所述第二比特组中的一个比特用于指示所述确认信息中包括在所述一个比特对应的频域资源上接收到的标识信息，或者，用于指示所述确认信息中不包括在所述一个比特对应的频域资源上接收到的标识信息，
    或者，
    所述第四指示信息包括至少一个指示域，所述至少一个指示域与所述至少一个标识信息一一对应，一个所述指示域用于指示接收到所述一个所述指示域对应的所述标识信息的频域资源。
  12. 根据权利要求1至11中任一项所述的方法，其特征在于，所述第一盘存信息为确认信息，所述第一装置接收来自所述第二装置的所述第一信令之前，所述方法还包括：
    所述第一装置在所述第一频域资源发送所述第一装置的第一标识信息，
    其中，所述确认信息中包括所述第一标识信息，所述第一信息中包括所述第一装置的身份信息。
  13. 根据权利要求12所述的方法，其特征在于，所述方法还包括：
    所述第一装置在所述多个候选频域资源中随机选择所述第一频域资源，或者，
    所述第一装置接收来自所述第二装置的第三信息，所述第三信息用于指示所述第一装置在所述第一频域资源传输上行信息。
  14. 根据权利要求13所述的方法，其特征在于，所述第三信息具体用于指示第一装置组在第一频域资源传输信息，所述第一装置组包括所述第一装置。
  15. 一种通信方法，其特征在于，包括：
    第二装置向第一装置发送第一信令，所述第一信令包括多个盘存信息，所述多个盘存信息中的每个盘存信息对应所述多个候选频域资源中的至少一个频域资源，其中，所述多个盘存信息包括第一盘存信息，所述第一盘存信息对应所述多个候选频域资源中的第一频域资源；
    所述第二装置在第一频域资源上接收来自所述第一装置的第一信息，所述第一信息用于响应所述第一盘存信息。
  16. 根据权利要求15所述的方法，其特征在于，所述多个盘存信息按照在所述第一信令中的排列顺序与所述多个候选频域资源按照频率顺序依次对应，或者，
    所述多个盘存信息中的一个盘存信息包括一个第一指示信息，所述第一指示信息用于指示所述一个所述盘存信息对应的频域资源，或者，
    所述第一信令还包括第一比特组，所述第一比特组中的多个比特与所述多个候选频域资源一一对应，所述第一比特组中的一个比特用于指示所述第一信令中包括所述一个比特对应的频域资源对应的盘存信息，或者，用于指示所述第一信令中不包括所述一个比特对应的频域资源对应的盘存信息。
  17. 根据权利要求15或16所述的方法，其特征在于，所述第一信令还包括第二指示信息，所述第二指示信息用于指示第一数量，所述第一数量为所述多个盘存信息中盘存信息的数量。
  18. 根据权利要求15至17中任一项所述的方法，其特征在于，所述多个盘存信息与第一信令中的多个第三指示信息一一对应，一个所述第三指示信息用于指示对应的盘存信 息的信息类型。
  19. 根据权利要求18所述的方法，其特征在于，所述第一信令包括一个头部字段，
    所述第一信令的头部字段包括所述多个第三指示信息，所述多个第三指示信息按照排列顺序与所述多个盘存信息按照排列顺序依次对应，或者，
    所述多个盘存信息中的一个盘存信息中包含一个所述第三指示信息。
  20. 根据权利要求18或19所述的方法，其特征在于，所述多个盘存信息中的每个盘存信息包括一个头部字段，一个所述盘存信息的头部字段包括一个所述第三指示信息。
  21. 根据权利要求15至20中任一项所述的方法，其特征在于，所述方法还包括：
    所述第二装置向所述第一装置发送第二信息，所述第二信息用于指示所述多个候选频域资源。
  22. 根据权利要求15至21中任一项所述的方法，其特征在于，所述第一盘存信息为确认信息，所述确认信息包括至少一个标识信息，所述至少一个标识信息为所述第二装置确认在所述多个候选频域资源上接收到的标识信息。
  23. 根据权利要求22所述的方法，其特征在于，所述确认信息还包括第二数量，所述第二数量为所述确认信息中标识信息的数量。
  24. 根据权利要求22或23所述的方法，其特征在于，所述确认信息还包括第四指示信息，所述第四指示信息用于指示所述确认信息中的每个所述标识信息对应的所述多个候选频域资源中的一个频域资源。
  25. 根据权利要求24所述的方法，其特征在于，
    所述第四指示信息包括第二比特组，所述第二比特组中的多个比特与所述多个候选频域资源一一对应，所述第二比特组中的一个比特用于指示所述确认信息中包括在所述一个比特对应的频域资源上接收到的标识信息，或者，用于指示所述确认信息中不包括在所述一个比特对应的频域资源上接收到的标识信息，
    或者，
    所述第四指示信息包括至少一个指示域，所述至少一个指示域与所述至少一个标识信息一一对应，一个所述指示域用于指示接收到所述一个所述指示域对应的所述标识信息的频域资源。
  26. 根据权利要求15至25中任一项所述的方法，其特征在于，所述第一盘存信息为确认信息，所述第二装置向所述第一装置发送所述第一信令之前，所述方法还包括：
    所述第二装置在所述第一频域资源上接收来自所述第一装置的第一标识信息，
    其中，所述确认信息中包括所述第一标识信息，所述第一信息中包括所述第一装置的身份信息。
  27. 根据权利要求26所述的方法，其特征在于，所述方法还包括：
    所述第二装置向所述第一装置发送第三信息，所述第三信息用于指示所述第一装置在所述第一频域资源传输上行信息。
  28. 根据权利要求27所述的方法，其特征在于，所述第三信息具体用于指示第一装置组在第一频域资源传输信息，所述第一装置组包括所述第一装置。
  29. 一种通信装置，其特征在于，包括处理器和存储器，所述存储器和所述处理器耦合，所述处理器用于执行如权利要求1至14中任一项所述的方法，或执行如权利要求15至28中任一项所述的方法。
  30. 一种计算机可读存储介质，其特征在于，存储有指令，当所述指令在计算机上运行时，使得所述计算机执行如权利要求1至14中任一项所述的方法，或执行如权利要求15至28中任一项所述的方法。
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