WO2015032269A1 - 一种软切换下上行授权信息的处理方法、终端及网络设备 - Google Patents

一种软切换下上行授权信息的处理方法、终端及网络设备 Download PDF

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Publication number
WO2015032269A1
WO2015032269A1 PCT/CN2014/084408 CN2014084408W WO2015032269A1 WO 2015032269 A1 WO2015032269 A1 WO 2015032269A1 CN 2014084408 W CN2014084408 W CN 2014084408W WO 2015032269 A1 WO2015032269 A1 WO 2015032269A1
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WO
WIPO (PCT)
Prior art keywords
wireless link
authorization information
uplink authorization
tpc
link set
Prior art date
Application number
PCT/CN2014/084408
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English (en)
French (fr)
Inventor
杨毅
焦淑蓉
花梦
马雪利
郭房富
郑潇潇
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2015032269A1 publication Critical patent/WO2015032269A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/16Performing reselection for specific purposes
    • H04W36/18Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method, a terminal, and a network device for processing uplink grant information under soft handover.
  • E-DCH Power Control and Enhanced Dedicated Channel
  • E-DCH Transport Format Combination E-TFC
  • E-TFC E-DCH Transport Format Combination
  • the uplink grant information such as the signal to interference and noise ratio difference, is added in the scheme.
  • Signal to Interference plus Noise Ratio Difference SD
  • E-DCH Enhanced Dedicated Channel
  • E-DPDCH Dedicated Physical Data Channel
  • a wireless communication system for example, a Wideband Code Division Multiple Access (WCDMA) network
  • WCDMA Wideband Code Division Multiple Access
  • a soft handover (also called seamless handover) area that is, the terminal needs to be switched from one base station to another.
  • the terminal In the region, activate each base station in the set, For example, the Signal to Interference plus Noise Ratio (SINR) and the Block Error Ratio (BLER) can be reported to the Radio Network Controller (RNC).
  • SINR Signal to Interference plus Noise Ratio
  • BLER Block Error Ratio
  • the RNC is based on the SINR and the BLER.
  • a sufficiently high uplink data rate ensures the stability of the transmission power of the terminal at a high uplink data rate, thereby ensuring the stability of the entire wireless system.
  • an embodiment of the present invention provides a method, a terminal, and a network device for processing uplink grant information under soft handover, so as to improve the speed of updating uplink grant information on a terminal.
  • An embodiment of the present invention provides a method for processing uplink grant information under soft handover, including: selecting at least one radio link set for transmitting uplink grant information, where each radio link set is a radio link established between the terminal and a base station. Collection
  • the uplink authorization information includes one of the following information: an authorization offset information, a letter The dry noise ratio SINR difference information, the enhanced dedicated channel transmission format combination E-TFC offset information or power offset information.
  • the selecting the at least one radio link set for transmitting the uplink grant information comprises: combining the TPCs according to the plurality of radio link sets and the uplink grant information of each of the plurality of radio link sets The TPC transmitted by the radio link set selects the at least one radio link set for transmitting the uplink grant information.
  • the TPC is a TPC for adjusting uplink DPCCH transmission power.
  • the radio link set includes at least one radio link
  • the uplink authorization information transmitted by the radio link set that obtains the at least one transmission uplink grant information by using physical signaling includes:
  • the uplink grant information is obtained by physical signaling from at least one of the wireless links in each radio link that transmits uplink grant information.
  • the set of wireless links for authorization information including:
  • the same TPC as the merge result is selected, and the radio link set of the TPC that is the same as the merge result is selected to be transmitted.
  • the combining result of the TPC transmitted according to the plurality of radio link sets and the TPC of the radio link set transmission of each of the plurality of radio link sets for transmitting the uplink grant information are selected at least A wireless link set for transmitting the uplink grant information, including:
  • the same set of service radio links in the plurality of radio link sets are selected; or, select all A set of wireless links that transmit uplink grant information.
  • the set of wireless links for authorization information including:
  • the obtaining, according to the candidate uplink authorization information, a target uplink authorization information including:
  • the method further includes: receiving a selection indication sent by the network device; and selecting, by the at least one radio link set for transmitting the uplink authorization information, the method includes: selecting, according to the selection indication, at least one wireless function for transmitting uplink authorization information Link set.
  • the embodiment of the invention provides a method for processing uplink authorization information under soft handover, which includes: obtaining, by the network device, a selection indication;
  • the network device sends the selection indication to the terminal, to instruct the terminal to select at least one radio link set for transmitting uplink grant information according to the selection indication, and obtain the at least one radio link set for transmitting uplink grant information. And obtaining, by using the uplink authorization information that is transmitted by the physical signaling, the candidate uplink corresponding to the radio link set of each of the uplink grant information, according to the uplink grant information that is sent by the radio link set of the at least one uplink grant information.
  • Authorization information according to the candidate uplink grant information, obtaining a target uplink grant information; each radio link set is a set of radio links established by the terminal and one base station.
  • the embodiment of the invention provides a terminal, including:
  • a selecting unit configured to select at least one radio link set for transmitting uplink grant information, where each radio link set is a set of radio links established by the terminal and one base station;
  • a first processing unit configured to obtain uplink authorization information that is transmitted by the radio link set of the at least one uplink grant information by using physical signaling
  • a second processing unit configured to obtain candidate uplink grant information corresponding to each radio link set for transmitting the uplink grant information according to the uplink grant information transmitted by the at least one radio link set for transmitting the uplink grant information;
  • the third processing unit is configured to obtain a target uplink grant information according to the candidate uplink grant information.
  • the uplink grant information includes one of the following information: an authorization offset information, a signal to interference and noise ratio SINR difference information, an enhanced dedicated channel transmission format combination E-TFC offset information, or power offset information.
  • the selecting, by the at least one radio link set for transmitting uplink grant information includes: combining a TPC according to a plurality of radio link sets and transmitting uplink grant information for each of the plurality of radio link sets
  • the TPC transmitted by the radio link set selects the at least one radio link set for transmitting the uplink grant information.
  • the TPC is a TPC for adjusting uplink DPCCH transmission power.
  • the radio link set includes at least one radio link
  • the obtaining, by the radio link set that transmits the uplink grant information, the uplink grant information transmitted by using physical signaling includes:
  • the uplink grant information is obtained by physical signaling from at least one of the wireless links in each radio link that transmits uplink grant information.
  • the set of wireless links for information including:
  • the same TPC as the merge result is selected, and the radio link set of the TPC that is the same as the merge result is selected to be transmitted.
  • the result of combining the TPCs transmitted according to the plurality of radio link sets and the plurality of A radio link set for transmitting a radio link set for transmitting each uplink grant information, and selecting at least one radio link set for transmitting the uplink grant information including:
  • the same set of service radio links in the plurality of radio link sets are selected; or, select all A set of wireless links that transmit uplink grant information.
  • the set of wireless links for authorization information including:
  • the obtaining, according to the candidate uplink authorization information, a target uplink authorization information including:
  • the authorization information is obtained, and the target uplink authorization information is obtained.
  • the terminal further includes: a receiving unit, configured to receive a selection indication sent by the network device;
  • the selecting the at least one radio link set for transmitting the uplink grant information comprises: selecting, according to the selection indication, at least one radio link set for transmitting the uplink grant information.
  • a processing unit configured to obtain a selection indication
  • a sending unit configured to send the selection indication to the terminal, to instruct the terminal to select at least one radio link set for transmitting uplink grant information according to the selection indication, and obtain the at least one radio link that transmits uplink grant information And obtaining, by using the uplink grant information transmitted by the physical signaling, a candidate corresponding to the radio link set of each of the uplink grant information, according to the uplink grant information transmitted by the at least one radio link set for transmitting the uplink grant information Uplink authorization information, according to the candidate uplink grant information, obtaining a target uplink grant information; each radio link set is a set of radio links established by the terminal and one base station.
  • the terminal obtains the uplink grant information for the E-TFC selection according to the uplink grant information sent by the cell under the base station through the radio link set, because the base station and the terminal interact through physical signaling, and the real-time performance of the physical signaling is compared. If the terminal can obtain the uplink authorization information quickly, the terminal can update the uplink authorization information on the terminal in the soft handover mode, and obtain more accurate uplink authorization information. The terminal can obtain an obvious rate adaptive gain and ensure the terminal. Obtaining the highest possible service rate on a certain transmit power makes the transmit power of the terminal more stable. At the same time, after obtaining multiple uplink grant information, the terminal can adapt a more accurate E-TFC to implement data transmission. .
  • FIG. 1 is a schematic diagram of the principle of a rate adaptation scheme in the prior art
  • Embodiment 1 is a schematic flowchart of Embodiment 1 of a method for processing uplink grant information under soft handover according to an embodiment of the present disclosure
  • Embodiment 3 is a schematic flowchart of Embodiment 2 of a method for processing uplink grant information under soft handover according to an embodiment of the present disclosure
  • FIG. 4 is a block diagram of a terminal provided by an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 6 is a functional block diagram of a network device according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a power channel combining period in a DPCH scenario in a downlink channel
  • FIG. 9 is a schematic diagram of a power control combining period in a downlink channel in an F-DPCH scenario.
  • the embodiment of the present invention provides a method for processing uplink grant information under soft handover, that is, when a terminal is located in a soft handover area, such as a cell coverage edge of multiple base stations, a handover operation between different base stations may be involved. In the area, the terminal needs to obtain uplink grant information related to multiple base stations in the domain, so as to implement rate adaptation.
  • FIG. 2 is a schematic flowchart of Embodiment 1 of a method for processing uplink grant information in a soft handover according to an embodiment of the present invention. As shown in the figure, the method includes the following steps: Step 201: Select at least one uplink A set of radio links for granting information, each set of radio links being a set of radio links established by the terminal with a base station.
  • the base station includes at least one cell, and a cell and a terminal are connected by using a radio link (RL), at least one set of the radio links is called a radio link set, and one base station passes at least A radio link set (RLS) is connected to a terminal, one radio link corresponds to one cell, and the radio link is a logical connection between the terminal and a network access point (UTRAN Access Point), and the physical of the radio link
  • the implementation includes one or more radio bearer transmissions; the base station transmits a transmit power command (TPC) and uplink grant information to the terminal through the radio link set, where each radio link concentrates each radio chain
  • TPC transmit power command
  • Carry is the same, and the TPCs transmitted by different radio link sets can be different.
  • a set of at least one radio link or a cell corresponding to a radio link that exists simultaneously between a terminal and a network access point is called an active set; there is one network access for each cell.
  • the network access point is an endpoint of the radio link on the network side;
  • the set of at least one radio link carrying the E-DCH of one terminal or the cell transmitting the E-DCH corresponding to the radio link is called E- DCH active set, the cell in the E-DCH active set will receive performance according to E-DCH data.
  • BLER or SINR adjusts the E-TFC selection of the data, so the cell in the E-DCH active set needs to send the uplink grant information to the terminal; at least one radio link set in the active set is used to transmit the uplink grant information;
  • the -DCH active set or active set is equal to the E-DCH active set.
  • the terminal receives the TPC of the entire radio link set transmission in the active set, and combines the TPCs according to the TPCs transmitted in the entire radio link set in the active set to obtain the combined result of the TPC; and then, according to the TPC transmitted by all the radio link sets in the active set.
  • the result of the combination and the TPC of the wireless link set transmission in which the active transmission of the uplink authorization information is transmitted, and the selection of the wireless link set of the at least one uplink authorization information may include the following two methods:
  • the first mode the terminal sends the TPC sent in the TPC command combining period according to each radio link set in the active set, and obtains all the radio link sets in the active set to be sent in the one power control combining period.
  • the result of the combination of the TPCs is compared with the TPC sent by each base station transmitting the uplink grant information in the active set, if the TPC of each of the wireless link sets transmitted by transmitting the uplink grant information is If there is a TPC that is the same as the merge result, then a radio link set that transmits the same TPC as the merge result and transmits the uplink grant information is selected; or, if the radio link set of each uplink grant information is transmitted, In the TPC, there is no TPC identical to the merge result, and the set of service radio links in the plurality of radio link sets in which the uplink grant information is transmitted is selected; or, the radio link set in which all uplink grant information is transmitted is selected.
  • the terminal merges the TPCs received by each radio link in the radio link set A of the transmission link grant information in a power control combining period, and obtains the TPC that the radio link set A transmits in a power control merge period, that is, the TPC. cmdA, the terminal merges the TPCs received by all the radio link sets in the active set, and obtains the merged TPC merges of all the radio link sets in the active set in one power control merge cycle.
  • TPC-cmdA is the same as TPC-cmd, that is, TPC-cmdA ⁇ 0 and TPC-cmd ⁇ 0 or TPC-cmdA>0 and TPC-cmd>0, the terminal chooses to send the TPC-cmdA.
  • the terminal can use the method to select at least one wireless link set for transmitting uplink grant information in the active set.
  • the one of the power control combining periods may be any one of the M power control combining periods closest to the current time.
  • M is an integer greater than or equal to 1.
  • the radio link set for transmitting the uplink grant information does not transmit the uplink grant information at each moment. If the radio link set transmitting the uplink grant information does not transmit the uplink grant information at a certain moment, the transmission is obtained. The radio link of the uplink grant information sets the uplink grant information transmitted at the most recent time.
  • the second method according to the TPCs transmitted in at least two power control combining periods of each wireless link set in the active set, respectively, obtaining the combined result of the TPCs transmitted by the entire wireless link set in the active set in each power control combining period. Comparing the TPC of the radio link set transmission of each of the transmission uplink grant information in each of the power control combining periods with the combining result, obtaining each of the at least two power control combining periods.
  • the TPC of the radio link set of the authorization information is transmitted the same number of times as the merge result; selecting a radio link set that transmits the TPC with the same number of times as the merge result and transmits the uplink grant information; or, selects the transmission and the The same number of merged results exceeds the preset threshold
  • TPC and a set of wireless links that transmit uplink grant information.
  • the at least two power control combining periods refer to at least two power control combining periods that are closest to the current time.
  • the terminal merges the TPCs transmitted by the respective wireless links in the wireless link set A in the N power control combining periods, that is, TPC-cmdA, and for each power control combining period in the N power control combining periods,
  • the terminal merges the TPCs transmitted by all the radio link sets in the active set in the active control merge period, and obtains the combined result of the TPCs transmitted by the entire radio link set in the active set in the active control merge period, that is, TPC_cmd, and TPC_cmdA
  • TPC_cmd Compared with the combined result TPC_cmd corresponding to each power control combination period, if the terminal finds that TPC-cmdA and TPC-cmd have the same number of times, such as TPC-cmdA ⁇ 0 and TPC-cmd ⁇ 0, the most times, or TPC – cmdA>0 and TPC_cmd>0 are the most frequently, then the terminal selects the radio link set A that transmits the TPC_
  • the terminal obtains two types of TPCs from the base station, and the base station sends the power control loop to the power control loop of the terminal to adjust the received power of the terminal.
  • the TPC of the terminal the TPC is used to adjust the total transmit power of the terminal; the other is the TPC that the base station sends to the terminal in the inner loop power control loop that tracks the DPCCH SINR, and the TPC is used to adjust the transmit power of the uplink DPCCH;
  • the receiving performance of the DPCCH needs to be ensured first.
  • the TPC transmitted by the base station is a TPC for adjusting the uplink DPCCH transmission power.
  • the terminal may further receive a selection indication sent by the network device, where the selection indication is used to instruct the terminal to select at least one radio link set for transmitting uplink grant information; and the terminal selects at least one radio that transmits the uplink grant information according to the selection indication.
  • Link set For example, if the indication carries the identifier 01, the terminal needs to select at least one radio link set for transmitting the uplink grant information. If the indication carries the identifier 02, the terminal does not select at least one radio link set for transmitting the uplink grant information. Its In the 3G network, the terminal may obtain a selection indication from the RNC, that is, the RNC sends the selection indication to the terminal.
  • Step 202 Obtain uplink authorization information that is transmitted by the wireless link set of the at least one uplink grant information by using a physical signaling.
  • At least one base station in the active set may obtain uplink grant information according to the SINR or BLER of the base station in real time, and then use the physical signaling to obtain the obtained uplink grant information, and send the terminal to the terminal through the radio link set between the cell and the terminal under the base station.
  • the base station may obtain uplink grant information according to the difference between the post-received SINR and the received SINR on the E-DPDCH; or, according to the current real-time BLER and BLER target received from the E-DPDCH
  • the difference between the values obtains the uplink grant information; the BLER target value may be set to be greater than 10%, so that the combined result of the BLER merge of each base station can be close to 10%.
  • the terminal may obtain the uplink authorization information by using at least one of the wireless links in each of the wireless link sets for transmitting the uplink grant information through physical signaling.
  • the method for obtaining the uplink authorization information transmitted by the wireless link set for transmitting the uplink authorization information is: the terminal may receive the uplink authorization information transmitted by all the wireless link sets for transmitting the uplink authorization information, And after selecting at least one radio link set for transmitting the uplink grant information, obtaining, by using the uplink grant information transmitted by the radio link set transmitting all the uplink grant information, the selected at least one radio link for transmitting the uplink grant information. Collecting the uplink authorization information transmitted by the receiver; or, the terminal first selects at least one radio link set for transmitting the uplink grant information, and then only receives the uplink grant transmitted by the base station by selecting at least one radio link set for transmitting the uplink grant information. information.
  • Step 203 transmitting, according to the wireless link set of the at least one uplink grant information. And obtaining authorization authorization information, obtaining candidate uplink authorization information corresponding to each radio link set for transmitting the uplink grant information.
  • the base station sends the uplink grant information to the terminal by using at least one radio link in each radio link that transmits the uplink grant information.
  • the base station may send uplink grant information to the terminal by using one radio link for each radio link transmitting the uplink grant information, and may also send uplink to each terminal by using each radio link in the radio link for transmitting the uplink grant information.
  • Authorization information may be used.
  • the terminal For the at least one radio link set for transmitting the uplink grant information, the terminal combines the uplink grant information transmitted on the at least one radio link in each radio link set to obtain the uplink grant information transmitted on each radio link set.
  • the result of the combination is the candidate uplink grant information corresponding to the radio link set for transmitting the uplink grant information; wherein the uplink grant information is transmitted on each radio link in the same radio link set.
  • Step 204 Obtain a target uplink grant information according to the candidate uplink grant information.
  • the target uplink grant information is obtained according to the largest candidate uplink grant information or the smallest candidate uplink grant information in the candidate uplink grant information, that is, the largest candidate uplink grant information in the candidate uplink grant information is used as the target uplink grant.
  • the information, or the candidate uplink grant information of the candidate uplink grant information is used as the target uplink grant information; the obtained target uplink grant information is used for E-TFC selection, and the real-time channel condition is implemented in the soft handover scenario.
  • the data rate is adaptively adjusted.
  • the embodiment of the present invention provides a method for processing uplink grant information under soft handover.
  • FIG. 3 it is a schematic flowchart of Embodiment 2 of a method for processing uplink grant information under soft handover according to an embodiment of the present invention. As shown, the method includes the following steps: Step 301: The network device obtains a selection indication, where the selection indication is used to trigger the operation of selecting the radio link set.
  • the network device determines whether to send the selection indication according to the moving speed of the terminal, and if the moving speed of the terminal is less than or equal to the preset speed threshold, the network device generates a selection indication, and sends a selection indication to the terminal, where the network
  • the device may be an RNC; the selection indicates an operation for triggering the selection of the set of wireless links.
  • Step 302 The network device sends the selection indication to the terminal, to instruct the terminal to select at least one radio link set for transmitting uplink grant information according to the selection indication, and obtain the wireless of the at least one uplink grant information.
  • the candidate uplink grant information obtains a target uplink grant information according to the candidate uplink grant information; each radio link set is a set of radio links established by the terminal and one base station.
  • the network device may send the selection indication to the terminal by using Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • FIG. 4 it is a functional block diagram of a terminal according to an embodiment of the present invention, which corresponds to the first embodiment and the second embodiment of the method. As shown in the figure, the terminal includes:
  • the selecting unit 40 is configured to select at least one radio link set for transmitting uplink grant information, where each radio link set is a set of radio links established by the terminal and one base station;
  • a first processing unit 41 configured to obtain the at least one radio link that transmits uplink grant information Collecting uplink grant information transmitted through physical signaling;
  • the second processing unit 42 is configured to obtain candidate uplink grant information corresponding to each radio link set for transmitting the uplink grant information according to the uplink grant information transmitted by the at least one radio link set for transmitting the uplink grant information.
  • the third processing unit 43 is configured to obtain a target uplink grant information according to the candidate uplink grant information.
  • the uplink grant information includes one of the following information: an authorization offset information, a signal to interference and noise ratio SINR difference information, an enhanced dedicated channel transmission format combination E-TFC offset information or power offset information.
  • the selecting a radio link set for transmitting at least one uplink grant information includes: combining a TPC according to a plurality of radio link sets and a radio chain transmitting each uplink grant information in the plurality of radio link sets
  • the TPC transmitted by the road set selects the at least one radio link set for transmitting the uplink grant information.
  • the TPC is a TPC for adjusting uplink DPCCH transmission power.
  • the radio link set includes at least one radio link
  • the obtained uplink authorization information transmitted by the radio link set of the at least one transmission uplink grant information by using physical signaling includes: At least one of the wireless links in the wireless link transmitting the uplink grant information obtains the uplink grant information.
  • the set of wireless links includes: a TPC transmitted in a power control combining period according to each wireless link set in the active set, obtaining all the wireless link sets in the active set in the one The result of combining the TPCs of the power control merge period transmission; if the TPC of the radio link set transmission of each of the uplink grant information is transmitted, the same TPC as the merge result exists, and selecting the TPC with the same result as the merge result Wireless link set.
  • the TPC for transmitting the radio link set for transmitting the uplink grant information there is no TPC identical to the merge result, and the service radio link set of the plurality of radio link sets is selected; or, all transmit uplink grant information is selected.
  • Wireless link set
  • the TPC transmitted in each of the at least two power control combining periods of each wireless link set in the active set respectively, obtaining the entire wireless link set in the active set in each power control combining period. a result of combining the transmitted TPCs; comparing a TPC of the radio link set transmission of each of the transmission uplink grant information in each of the power control combining periods with the combining result, obtaining the at least two power control combining periods
  • the TPC of each of the radio link sets transmitting the uplink grant information is transmitted the same number of times as the merge result; selecting a radio link set for transmitting the TPC with the same number of times as the merge result; or, selecting the transmission and the The wireless link set of the TPC whose same number of times of the combined result exceeds the preset threshold.
  • the obtaining the target uplink grant information according to the candidate uplink grant information includes: obtaining the target uplink grant information according to the largest candidate uplink grant information or the smallest candidate uplink grant information in the candidate uplink grant information. .
  • the terminal further includes: a receiving unit 44, configured to receive a selection indication sent by the network device, where the selecting the at least one radio link set for transmitting the uplink authorization information, including: selecting, according to the selection indication, at least one transmission uplink authorization information Wireless link set.
  • a receiving unit 44 configured to receive a selection indication sent by the network device, where the selecting the at least one radio link set for transmitting the uplink authorization information, including: selecting, according to the selection indication, at least one transmission uplink authorization information Wireless link set.
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention, which corresponds to the first embodiment, FIG. 2 and FIG. 4 of the method.
  • the terminal includes:
  • a memory 50 configured to store information including a program routine
  • the processor 51 is connected to the memory 50 for controlling execution of the program routine, and specifically includes: selecting at least one wireless link set for transmitting uplink grant information, where each wireless link set is a wireless established by the terminal and one base station. a set of links; obtaining, by the wireless link set transmitting the uplink grant information, uplink grant information transmitted by physical signaling; and transmitting uplink grant information according to the at least one radio link set transmitting the uplink grant information Obtaining candidate uplink grant information corresponding to each radio link set for transmitting the uplink grant information, and obtaining a target uplink grant information according to the candidate uplink grant information.
  • FIG. 6 is a functional block diagram of a network device according to an embodiment of the present invention, which corresponds to the second embodiment and the third embodiment.
  • the network device includes:
  • a processing unit 60 configured to obtain a selection indication
  • the sending unit 61 is configured to send the selection indication to the terminal, to instruct the terminal to select at least one radio link set for transmitting uplink grant information according to the selection indication, and obtain the at least one radio chain that transmits uplink grant information.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention, which corresponds to the method embodiment 2 and FIG. 3.
  • the network device includes:
  • a memory 70 configured to store information including a program routine
  • the processor 71 is respectively connected to the memory 70 and the transmitter 72, and is configured to control execution of the program routine, and specifically includes: obtaining a selection indication;
  • the transmitter 72 is configured to send the selection indication to the terminal, to instruct the terminal to select at least one radio link set for transmitting uplink grant information according to the selection indication, and obtain the at least one radio chain that transmits uplink grant information.
  • the candidate uplink grant information obtains a target uplink grant information according to the candidate uplink grant information; each radio link set is a set of radio links established by the terminal and one base station.
  • the one power control combining period refers to a power control combining period corresponding to the combined result of the TPC.
  • the target SD uses the combined result of the TPC to perform DPCCH power control on the time slot, the target SD starts E-TFC selection.
  • the present invention follows the timing relationship of the TPC already defined in the protocol, and does not perform the timing relationship of the uplink grant information.
  • the limitation is that the sending time of the candidate uplink grant information is not limited.
  • the length of the power control combining period is equal to one time slot. As shown in FIG. 8 , if the downlink channel is a Dedicated Physical Channel (DPCH), the power control combining period starts from the boundary of the downlink time slot, as shown in FIG. 9 .
  • DPCH Dedicated Physical Channel
  • the power control combining period starts at 512 chips after the downlink slot boundary.
  • a power control combining period may occupy the second half of one slot and the first half of the next slot.
  • the technical solution of the embodiment of the present invention has the following beneficial effects:
  • the terminal obtains the uplink grant information for the E-TFC selection according to the uplink grant information sent by the cell under the base station through the radio link set, because the base station and the terminal pass the physical
  • the signaling is interactive, and the real-time performance of the physical signaling is high.
  • the terminal can obtain the uplink authorization information quickly, so that the uplink authorization information is updated on the terminal under the soft handover, and the uplink authorization information can be obtained.

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

一种软切换下上行授权信息的处理方法、终端及网络设备,该方法包括:选择至少一个传输上行授权信息的无线链路集,每个无线链路集为终端与一个基站建立的无线链路的集合;获得所述至少一个传输上行授权信息的无线链路集通过物理信令所传输的上行授权信息;依据所述至少一个传输上行授权信息的无线链路集所传输的上行授权信息,获得每个所述传输上行授权信息的无线链路集对应的候选上行授权信息;依据所述候选上行授权信息,获得一个目标上行授权信息。根据本发明实施例提供的技术方案,以实现提高终端上更新上行授权信息的速度。

Description

一种软切换下上行授权信息的处理方法、 终端及网络设备 本申请要求于 2013 年 9 月 6 日提交中国专利局、 申请号为 201310405021.7、 发明名称为"一种软切换下上行授权信息的处理方法、 终端 及网络设备"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 本发明涉及无线通信技术领域,尤其涉及一种软切换下上行授权信息的处 理方法、 终端及网络设备。 背景技术 为了提高高速率业务的性能, 维持系统稳定性,在高系统负载的情况下提 升系统性能, 目前存在一种速率自适应方案, 其主要是将功率控制与增强专用 信道( Enhanced Dedicated Channel, E-DCH )传输格式组合 ( E-DCH Transport Format Combination, E-TFC )选择分开, 依据实时信道状况对数据速率进行 自适应调整, 该方案中增加的上行授权信息, 如信干噪比差异 ( Signal to Interference plus Noise Ratio Difference , SD ), 与增强专用信道 ( Enhanced Dedicated Channel , E-DCH )专用物理数据信道( E-DCH Dedicated Physical Data Channel, E-DPDCH )的发送功率一起用于进行数据信道的 E-TFC选择; 如图 1所示,在实际 E-DPDCH的发射功率或者 E-DPDCH的授权值( Serving Grant ) 的基础上回退 SD, 获得等效授权值, 该等效授权值用于进行 E-TFC选择。
在无线通信系统例如, 宽带码分多址(Wideband Code Division Multiple Access, WCDMA ) 网络中, 当终端处于软切换(也叫无缝切换) 区域时, 即 终端处于需要从一个基站切换到其他基站下的区域中时, 激活集中每个基站 , 如 NodeB , 可以将信干噪比( Signal to Interference plus Noise Ratio , SINR )和 块误码率(Block Error Ratio, BLER )上报给无线网络控制器( Radio Network Controller, RNC ), RNC依据 SINR和 BLER生成上行授权信息, 如 SD, 然 后将生成的上行授权信息通过高层信令下发给终端使用,以使得终端依据上行 授权信息和数据信道的发送功率使得终端在基站分配的功率预算下,能够获得 足够高的上行数据速率,保证终端在高上行数据速率下发射功率的稳定性,从 而保证整个无线系统的稳定性。
然而, 由于高层信令的实时性较低,使得终端上更新上行授权信息的速度 较慢, 因此, 导致了终端获得上行授权信息的实时性较差。 发明内容 有鉴于此, 本发明实施例提供了一种软切换下上行授权信息的处理方法、 终端及网络设备, 以实现提高终端上更新上行授权信息的速度。
本发明实施例提供了一种软切换下上行授权信息的处理方法, 包括: 选择至少一个传输上行授权信息的无线链路集,每个无线链路集为终端与 一个基站建立的无线链路的集合;
获得所述至少一个传输上行授权信息的无线链路集通过物理信令所传输 的上行授权信息;
依据所述至少一个传输上行授权信息的无线链路集所传输的上行授权信 息, 获得每个所述传输上行授权信息的无线链路集对应的候选上行授权信息; 依据所述候选上行授权信息, 获得一个目标上行授权信息。
上述方法中, 所述上行授权信息包括以下信息中一个: 授权偏置信息、 信 干噪比 SINR差异信息、 增强专用信道传输格式组合 E-TFC偏置信息或功率 偏置信息。
上述方法中, 所述选择至少一个传输上行授权信息的无线链路集, 包括: 依据多个无线链路集传输的 TPC的合并结果和所述多个无线链路集中每 个传输上行授权信息的无线链路集传输的 TPC, 选择所述至少一个传输上行 授权信息的无线链路集。
上述方法中, 所述 TPC为用于调整上行 DPCCH发射功率的 TPC。
上述方法中, 所述无线链路集包括至少一个无线链路, 所述获得所述至少 一个传输上行授权信息的无线链路集通过物理信令所传输的上行授权信息,包 括:
通过物理信令从每个传输上行授权信息的无线链路集中至少一个所述无 线链路获得所述上行授权信息。
上述方法中, 所述依据多个无线链路集传输的 TPC的合并结果和所述多 个无线链路集中每个传输上行授权信息的无线链路集传输的 TPC, 选择至少 一个所述传输上行授权信息的无线链路集, 包括:
依据激活集中每个无线链路集在一个功控合并周期传输的 TPC, 获得所 述激活集中全部无线链路集在所述一个功控合并周期传输的 TPC 的合并结 果;
若所述每个传输上行授权信息的无线链路集传输的 TPC中, 存在与所述 合并结果相同的 TPC, 选择传输与所述合并结果相同的 TPC的无线链路集。
上述方法中, 所述依据多个无线链路集传输的 TPC的合并结果和所述多 个无线链路集中每个传输上行授权信息的无线链路集传输的 TPC, 选择至少 一个所述传输上行授权信息的无线链路集, 包括:
依据激活集中每个无线链路集在一个功控合并周期传输的 TPC, 获得所 述激活集中全部无线链路集在所述一个功控合并周期传输的 TPC 的合并结 果;
若所述每个传输上行授权信息的无线链路集传输的 TPC中, 不存在与所 述合并结果相同的 TPC, 选择所述多个无线链路集中的服务无线链路集; 或 者, 选择全部传输上行授权信息的无线链路集。
上述方法中, 所述依据多个无线链路集传输的 TPC的合并结果和所述多 个无线链路集中每个传输上行授权信息的无线链路集传输的 TPC, 选择至少 一个所述传输上行授权信息的无线链路集, 包括:
依据激活集中每个无线链路集在至少两个功控合并周期中每个所述功控 合并周期传输的 TPC, 分别获得所述激活集中全部无线链路集在每个功控合 并周期传输的 TPC的合并结果;
比较每个所述功控合并周期中所述每个传输上行授权信息的无线链路集 传输的 TPC与所述合并结果, 获得所述至少两个功控合并周期中每个所述传 输上行授权信息的无线链路集传输的 TPC与所述合并结果的相同次数;
选择传输与所述合并结果的相同次数最多的 TPC的无线链路集; 或者, 选择传输与所述合并结果的相同次数超过预设阔值的 TPC的无线链路集。
上述方法中, 所述依据所述候选上行授权信息, 获得一个目标上行授权信 息, 包括:
依据所述候选上行授权信息中最大的候选上行授权信息或最小的候选上 行授权信息, 获得所述目标上行授权信息。 上述方法中, 所述方法还包括: 接收网络设备发送的选择指示; 所述选择至少一个传输上行授权信息的无线链路集, 包括: 依据所述选择 指示, 选择至少一个传输上行授权信息的无线链路集。
本发明实施例提供了一种软切换下上行授权信息的处理方法, 包括: 网络设备获得选择指示;
所述网络设备向终端发送所述选择指示,以指示所述终端依据所述选择指 示选择至少一个传输上行授权信息的无线链路集,以及获得所述至少一个传输 上行授权信息的无线链路集通过物理信令所传输的上行授权信息,依据所述至 少一个传输上行授权信息的无线链路集所传输的上行授权信息,获得每个所述 传输上行授权信息的无线链路集对应的候选上行授权信息,依据所述候选上行 授权信息, 获得一个目标上行授权信息; 每个无线链路集为终端与一个基站建 立的无线链路的集合。
本发明实施例提供了一种终端, 包括:
选择单元, 用于选择至少一个传输上行授权信息的无线链路集,每个无线 链路集为终端与一个基站建立的无线链路的集合;
第一处理单元,用于获得所述至少一个传输上行授权信息的无线链路集通 过物理信令所传输的上行授权信息;
第二处理单元,用于依据所述至少一个传输上行授权信息的无线链路集所 传输的上行授权信息,获得每个所述传输上行授权信息的无线链路集对应的候 选上行授权信息;
第三处理单元, 用于依据所述候选上行授权信息, 获得一个目标上行授权 信息。 上述终端中, 所述上行授权信息包括以下信息中一个: 授权偏置信息、 信 干噪比 SINR差异信息、 增强专用信道传输格式组合 E-TFC偏置信息或功率 偏置信息。
上述终端中, 所述选择至少一个传输上行授权信息的无线链路集, 包括: 依据多个无线链路集传输的 TPC的合并结果和所述多个无线链路集中每 个传输上行授权信息的无线链路集传输的 TPC, 选择所述至少一个传输上行 授权信息的无线链路集。
上述终端中, 所述 TPC为用于调整上行 DPCCH发射功率的 TPC。
上述终端中, 所述无线链路集包括至少一个无线链路, 所述获得所述至少 一个传输上行授权信息的无线链路集通过物理信令所传输的上行授权信息,包 括:
通过物理信令从每个传输上行授权信息的无线链路集中至少一个所述无 线链路获得所述上行授权信息。
上述终端中, 所述多个无线链路集传输的 TPC的合并结果和所述多个无 线链路集中每个传输上行授权信息的无线链路集传输的 TPC, 选择至少一个 所述传输上行授权信息的无线链路集, 包括:
依据激活集中每个无线链路集在一个功控合并周期传输的 TPC, 获得所 述激活集中全部无线链路集在所述一个功控合并周期传输的 TPC 的合并结 果;
若所述每个传输上行授权信息的无线链路集传输的 TPC中, 存在与所述 合并结果相同的 TPC, 选择传输与所述合并结果相同的 TPC的无线链路集。
上述终端中, 所述依据多个无线链路集传输的 TPC的合并结果和所述多 个无线链路集中每个传输上行授权信息的无线链路集传输的 TPC, 选择至少 一个所述传输上行授权信息的无线链路集, 包括:
依据激活集中每个无线链路集在一个功控合并周期传输的 TPC, 获得所 述激活集中全部无线链路集在所述一个功控合并周期传输的 TPC 的合并结 果;
若所述每个传输上行授权信息的无线链路集传输的 TPC中, 不存在与所 述合并结果相同的 TPC, 选择所述多个无线链路集中的服务无线链路集; 或 者, 选择全部传输上行授权信息的无线链路集。
上述终端中, 所述依据多个无线链路集传输的 TPC的合并结果和所述多 个无线链路集中每个传输上行授权信息的无线链路集传输的 TPC, 选择至少 一个所述传输上行授权信息的无线链路集, 包括:
依据激活集中每个无线链路集在至少两个功控合并周期中每个所述功控 合并周期传输的 TPC, 分别获得所述激活集中全部无线链路集在每个功控合 并周期传输的 TPC的合并结果;
比较每个所述功控合并周期中所述每个传输上行授权信息的无线链路集 传输的 TPC与所述合并结果, 获得所述至少两个功控合并周期中每个所述传 输上行授权信息的无线链路集传输的 TPC与所述合并结果的相同次数;
选择传输与所述合并结果的相同次数最多的 TPC的无线链路集; 或者, 选择传输与所述合并结果的相同次数超过预设阈值的 TPC的无线链路集。
上述终端中, 所述依据所述候选上行授权信息, 获得一个目标上行授权信 息, 包括:
依据所述候选上行授权信息中最大的候选上行授权信息或最小的候选上 行授权信息, 获得所述目标上行授权信息。
上述终端中, 所述终端还包括: 接收单元, 用于接收网络设备发送的选择 指示;
所述选择至少一个传输上行授权信息的无线链路集, 包括: 依据所述选择 指示, 选择至少一个传输上行授权信息的无线链路集。
本发明实施例一种网络设备, 包括:
处理单元, 用于获得选择指示;
发送单元, 用于向终端发送所述选择指示, 以指示所述终端依据所述选择 指示选择至少一个传输上行授权信息的无线链路集,以及获得所述至少一个传 输上行授权信息的无线链路集通过物理信令所传输的上行授权信息,依据所述 至少一个传输上行授权信息的无线链路集所传输的上行授权信息,获得每个所 述传输上行授权信息的无线链路集对应的候选上行授权信息,依据所述候选上 行授权信息, 获得一个目标上行授权信息; 每个无线链路集为终端与一个基站 建立的无线链路的集合。
由以上技术方案可以看出, 本发明实施例具有以下有益效果:
终端依据基站下小区通过无线链路集下发的上行授权信息, 获得用于 E-TFC选择的目标上行授权信息, 由于基站与终端之间通过物理信令交互,且 物理信令的实时性较高, 终端可以较快的获得上行授权信息,从而实现软切换 下终端上更新上行授权信息的速度较快, 可以获得更加准确的上行授权信息, 终端可以获得明显的速率自适应的增益,保证终端在一定发送功率上获得尽可 能高的业务速率, 使得终端的发送功率更加稳定; 同时, 终端较快的获得多个 上行授权信息后, 可以适配出更加准确的 E-TFC, 以实现数据发射。 附图说明 为了更清楚地说明本发明实施例的技术方案,下面将对实施例中所需要使 用的附图作简单地介绍,显而易见地, 下面描述中的附图仅仅是本发明的一些 实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动性的前提下, 还 可以根据这些附图获得其它的附图。
图 1是现有技术中速率自适应方案的原理示意图;
图 2 是本发明实施例所提供的软切换下上行授权信息的处理方法的实施 例一的流程示意图;
图 3 是本发明实施例所提供的软切换下上行授权信息的处理方法的实施 例二的流程示意图;
图 4是本发明实施例所提供的终端的功方块图;
图 5是本发明实施例所提供的终端的结构示意图;
图 6是本发明实施例所提供的网络设备的功能方块图;
图 7是本发明实施例所提供的网络设备的结构示意图
图 8是下行信道为 DPCH场景下功控合并周期的示意图;
图 9是下行信道为 F-DPCH场景下功控合并周期的示意图。 具体实施方式 为了更好的理解本发明的技术方案,下面结合附图对本发明实施例进行详 细描述。
应当明确, 所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实 施例。基于本发明中的实施例, 本领域普通技术人员在没有作出创造性劳动前 提下所获得的所有其它实施例, 都属于本发明保护的范围。
本发明实施例给出一种软切换下上行授权信息的处理方法,即当终端位于 软切换区域,如多个基站的小区覆盖边缘时, 可能涉及在不同基站之间的切换 操作, 在这一区域内, 终端需要获取域多个基站相关的上行授权信息, 以便实 现速率自适应。 请参考图 2, 其为本发明实施例所提供的软切换下上行授权信 息的处理方法的实施例一的流程示意图, 如图所示, 该方法包括以下步骤: 步骤 201 , 选择至少一个传输上行授权信息的无线链路集, 每个无线链路 集为终端与一个基站建立的无线链路的集合。
具体的,基站包括至少一个小区, 一个小区与一个终端之间通过一个无线 链路( Radio Link, RL ) 实现连接, 至少一个所述无线链路的集合称为无线链 路集, 一个基站通过至少一个无线链路集(Radio Link Set, RLS )与一个终端 实现连接, 一个无线链路对应一个小区, 无线链路是终端与网络接入点 ( UTRAN Access Point )的逻辑连接, 无线链路的物理实现包括一个以上无线 传输( Radio Bearer Transmission ); 基站通过无线链路集向终端传输( Carry ) 发射功率命令 ( Transmission Power Command, TPC )和上行授权信息, 其中, 每个无线链路集中各无线链路传输(Carry ) 的 TPC相同, 不同的无线链路集 传输的 TPC可以不同。
一个终端和网络接入点(如之前所述的基站 )之间同时存在的至少一个无 线链路或无线链路对应的小区所组成的集合称为激活集;对于每个小区存在一 个网络接入点, 网络接入点是一个无线链路在网络侧的端点; 承载一个终端的 E-DCH的至少一个无线链路或无线链路对应的发送 E-DCH的小区所组成的集 合称为 E-DCH激活集, E-DCH激活集中的小区会根据 E-DCH数据接收性能 (即 BLER或者 SINR )调整数据的 E-TFC选择, 因此 E-DCH激活集中的小 区需要发送上行授权信息给终端;激活集中有至少一个无线链路集用于传输上 行授权信息; 激活集包含 E-DCH激活集或激活集等于 E-DCH激活集。
终端接收激活集中全部无线链路集传输的 TPC,依据激活集中全部无线链 路集传输的 TPC, 对这些 TPC进行合并, 获得 TPC的合并结果; 然后, 依据 激活集中全部无线链路集传输的 TPC的合并结果和所述激活集中传输上行授 权信息的无线链路集传输的 TPC,选择所述至少一个传输上行授权信息的无线 链路集, 可以包括以下两种方式:
第一种方式: 终端依据激活集中每个无线链路集在一个功控合并周期 ( TPC command combining period )发送的 TPC, 获得所述激活集中全部无 线链路集在所述一个功控合并周期发送的 TPC的合并结果;将所述 TPC的合 并结果分别与激活集中每个发送上行授权信息的基站发送的 TPC进行比较, 若所述每个传输上行授权信息的无线链路集传输的 TPC中, 存在与所述合并 结果相同的 TPC, 则选择传输与所述合并结果相同的 TPC且传输上行授权信 息的无线链路集; 或者, 若所述每个传输上行授权信息的无线链路集传输的 TPC中, 不存在与所述合并结果相同的 TPC, 选择所述传输上行授权信息的 多个无线链路集中的服务无线链路集; 或者,选择全部传输上行授权信息的无 线链路集。
例如,终端合并在一个功控合并周期通过传输上行授权信息的无线链路集 A中各个无线链路收到的 TPC, 获得无线链路集 A在一个功控合并周期传输 的 TPC,即 TPC—cmdA,终端合并通过激活集中所有无线链路集收到的 TPC, 获得激活集中全部无线链路集在一个功控合并周期传输的 TPC合并的合并结 果 ,即 TPC— cmd ,若终端发现 TPC— cmdA与 TPC— cmd相同,即 TPC— cmdA<0 且 TPC— cmd<0 或 TPC— cmdA>0 且 TPC— cmd>0 , 则终端选择发送该
TPC—cmdA的无线链路集 A, 终端可以利用该方法在激活集中选择至少一个 传输上行授权信息的无线链路集。
其中, 所述一个功控合并周期可以是距离当前时间最近的 M个功控合并 周期中任意一个功控合并周期。 其中, M为大于或等于 1的整数。
需要说明的是,传输上行授权信息的无线链路集并不是在每个时刻都会传 输上行授权信息,如果传输上行授权信息的无线链路集在某个时刻没有传输上 行授权信息,则获得该传输上行授权信息的无线链路集在最近时刻传输的上行 授权信息。
第二种方式:依据激活集中每个无线链路集在至少两个功控合并周期传输 的 TPC, 分别获得所述激活集中全部无线链路集在每个功控合并周期传输的 TPC 的合并结果; 比较每个所述功控合并周期中所述每个传输上行授权信息 的无线链路集传输的 TPC与所述合并结果, 获得所述至少两个功控合并周期 中每个所述传输上行授权信息的无线链路集传输的 TPC与所述合并结果的相 同次数; 选择传输与所述合并结果的相同次数最多的 TPC且传输上行授权信 息的无线链路集; 或者,选择传输与所述合并结果的相同次数超过预设阔值的
TPC且传输上行授权信息的无线链路集。
所述至少两个功控合并周期指的是距离当前时间最近的至少两个功控合 并周期。
例如, 终端合并在 N个功控合并周期通过无线链路集 A中各个无线链路 传输的 TPC, 即 TPC—cmdA, 对于 N个功控合并周期中每个功控合并周期, 终端合并在该功控合并周期通过激活集中所有无线链路集传输的 TPC, 获得 激活集中全部无线链路集在该功控合并周期传输的 TPC 的合并结果, 即 TPC— cmd,将 TPC— cmdA与每个功控合并周期对应的合并结果 TPC— cmd进 行比较, 若终端发现 TPC— cmdA 与 TPC— cmd 的相同次数最多, 如 TPC— cmdA<0且 TPC— cmd<0的次数最多 ,或 TPC— cmdA>0且 TPC— cmd>0 的次数最多, 则终端选择传输该 TPC— cmdA且传输上行授权信息的无线链路 集 A, 终端可以利用该方法在激活集中选择至少一个无线链路集; 其中 N 大 于或等于 2, N的具体取值可以预先在终端中配置, 或者由 RNC下发给终端 配置指示, 该配置指示用于指示终端 N的具体取值。
需要说明的是, 在一种软切换场景中, 存在两个功率控制环路, 则终端会 从基站获得两种 TPC, —种是基站在调整终端的接收功率的功率控制环路中, 发送给终端的 TPC, 该 TPC用于调整终端的总发射功率; 另一种是基站在跟 踪 DPCCH SINR的内环功率控制环路中发送给终端的 TPC, 该 TPC用于调整 上行 DPCCH的发射功率; 本实施例中, 由于需要获得软切换增益, 因此需要 首先保证 DPCCH的接收性能, 所以终端在收到两种 TPC时, 需要依据第二 种 TPC选择无线链路集, 因此, 上述方法中终端依据的基站发送的 TPC为用 于调整上行 DPCCH发射功率的 TPC。
优选的, 终端还可以接收网络设备发送的选择指示, 该选择指示用于指示 终端选择至少一个传输上行授权信息的无线链路集; 终端依据所述选择指示, 选择至少一个传输上行授权信息的无线链路集。 例如, 选择指示中携带标识 01 , 则终端需要选择至少一个传输上行授权信息的无线链路集, 若选择指示中 携带标识 02, 则终端不要选择至少一个传输上行授权信息的无线链路集。 其 中, 3G网络中, 终端可以从 RNC获得选择指示, 即由 RNC将选择指示下发 给终端。
步骤 202, 获得所述至少一个传输上行授权信息的无线链路集通过物理信 令所传输的上行授权信息。
具体的, 激活集中存在至少一个基站可以实时依据基站的 SINR或 BLER 获得上行授权信息, 然后将获得的上行授权信息利用物理信令,通过基站下小 区与终端之间的无线链路集发送给终端。 其中, 基站可以依据 E-DPDCH上均 衡后信干燥比 (post receiver SINR ) 与接收 SINR之间的差异, 获得上行授权 信息; 或者,依据当前从 E-DPDCH接收的实时的初传 BLER与 BLER目标值 之间的差异, 获得上行授权信息; 所述 BLER 目标值可以设置为大于 10%, 以使得各个基站的 BLER合并的合并结果能够接近 10%。
终端可以通过物理信令从每个传输上行授权信息的无线链路集中至少一 个所述无线链路获得所述上行授权信息。
本发明实施例中,获得所述至少一个传输上行授权信息的无线链路集所传 输的上行授权信息的方法为:终端可以接收所有传输上行授权信息的无线链路 集所传输的上行授权信息,然后在选择出至少一个传输上行授权信息的无线链 路集后,从所有传输上行授权信息的无线链路集所传输的上行授权信息中, 获 得选择出的至少一个传输上行授权信息的无线链路集所传输的上行授权信息; 或者, 终端先选择出至少一个传输上行授权信息的无线链路集, 然后仅接收基 站通过选择出的至少一个传输上行授权信息的无线链路集所传输的上行授权 信息。
步骤 203 , 依据所述至少一个传输上行授权信息的无线链路集所传输的上 行授权信息,获得每个所述传输上行授权信息的无线链路集对应的候选上行授 权信息。
具体的,对于选出的至少一个传输上行授权信息的无线链路集中的每个无 线链路集,基站通过每个传输上行授权信息的无线链路集中至少一个无线链路 向终端发送上行授权信息, 例如,基站可以通过每个传输上行授权信息的无线 链路集中一个无线链路向终端发送上行授权信息,还可以通过每个传输上行授 权信息的无线链路集中各个无线链路向终端发送上行授权信息。
对于所述至少一个传输上行授权信息的无线链路集中,终端对每个无线链 路集中至少一个无线链路上传输的上行授权信息进行合并,获得每个无线链路 集上传输的上行授权信息的合并结果,该合并结果就是传输上行授权信息的无 线链路集对应的候选上行授权信息; 其中, 同一个无线链路集中各个无线链路 上传输上行授权信息相同。
步骤 204 , 依据所述候选上行授权信息, 获得一个目标上行授权信息。 具体的,依据所述候选上行授权信息中最大的候选上行授权信息或最小的 候选上行授权信息, 获得目标上行授权信息,也就是将候选上行授权信息中最 大的候选上行授权信息,作为目标上行授权信息, 或者将候选上行授权信息中 最小的候选上行授权信息,作为目标上行授权信息; 获得的目标上行授权信息 用于进行 E-TFC的选择, 实现在软切换场景下, 依据实时的信道状况对数据 速率进行自适应的调整。
本发明实施例给出一种软切换下上行授权信息的处理方法, 请参考图 3 , 其为本发明实施例所提供的软切换下上行授权信息的处理方法的实施例二的 流程示意图, 如图所示, 该方法包括以下步骤: 步骤 301 , 网络设备获得选择指示, 所述选择指示用于触发所述选择无线 链路集的操作。
具体的, 网络设备依据终端的移动速度决定是否发送选择指示, 若终端的 移动速度小于或等于预设的速度阔值, 则网络设备生成选择指示, 并向终端发 送选择指示; 其中, 所述网络设备可以为 RNC; 所述选择指示用于触发所述 选择无线链路集的操作。
步骤 302, 所述网络设备向终端发送所述选择指示, 以指示所述终端依据 所述选择指示选择至少一个传输上行授权信息的无线链路集,以及获得所述至 少一个传输上行授权信息的无线链路集通过物理信令所传输的上行授权信息, 依据所述至少一个传输上行授权信息的无线链路集所传输的上行授权信息,获 得每个所述传输上行授权信息的无线链路集对应的候选上行授权信息,依据所 述候选上行授权信息, 获得一个目标上行授权信息; 每个无线链路集为终端与 一个基站建立的无线链路的集合。
其中, 所述网络设备可以通过无线资源控制 (Radio Resource Control , RRC )信令向终端发送所述选择指示。 施例。
请参考图 4, 其为本发明实施例所提供的一种终端的功能方块图, 与方法 实施例一和图 2对应; 如图所示, 该终端包括:
选择单元 40, 用于选择至少一个传输上行授权信息的无线链路集, 每个 无线链路集为终端与一个基站建立的无线链路的集合;
第一处理单元 41 , 用于获得所述至少一个传输上行授权信息的无线链路 集通过物理信令所传输的上行授权信息;
第二处理单元 42 , 用于依据所述至少一个传输上行授权信息的无线链路 集所传输的上行授权信息,获得每个所述传输上行授权信息的无线链路集对应 的候选上行授权信息;
第三处理单元 43 , 用于依据所述候选上行授权信息, 获得一个目标上行 授权信息。
其中, 所述上行授权信息包括以下信息中一个: 授权偏置信息、信干噪比 SINR差异信息、 增强专用信道传输格式组合 E-TFC偏置信息或功率偏置信 息。
其中, 所述选择至少一个传输上行授权信息的无线链路集, 包括: 依据多 个无线链路集传输的 TPC的合并结果和所述多个无线链路集中每个传输上行 授权信息的无线链路集传输的 TPC, 选择所述至少一个传输上行授权信息的 无线链路集。
其中, 所述 TPC为用于调整上行 DPCCH发射功率的 TPC。
其中, 所述无线链路集包括至少一个无线链路, 所述获得所述至少一个传 输上行授权信息的无线链路集通过物理信令所传输的上行授权信息, 包括: 通 过物理信令从每个传输上行授权信息的无线链路集中至少一个所述无线链路 获得所述上行授权信息。
其中, 所述依据多个无线链路集传输的 TPC的合并结果和所述多个无线 链路集中每个传输上行授权信息的无线链路集传输的 TPC , 选择至少一个所 述传输上行授权信息的无线链路集, 包括: 依据激活集中每个无线链路集在一 个功控合并周期传输的 TPC , 获得所述激活集中全部无线链路集在所述一个 功控合并周期传输的 TPC的合并结果; 若所述每个传输上行授权信息的无线 链路集传输的 TPC中, 存在与所述合并结果相同的 TPC, 选择传输与所述合 并结果相同的 TPC的无线链路集。
或者, 依据激活集中每个无线链路集在一个功控合并周期传输的 TPC, 获得所述激活集中全部无线链路集在所述一个功控合并周期传输的 TPC的合 并结果; 若所述每个传输上行授权信息的无线链路集传输的 TPC中, 不存在 与所述合并结果相同的 TPC, 选择所述多个无线链路集中的服务无线链路集; 或者, 选择全部传输上行授权信息的无线链路集;
或者,依据激活集中每个无线链路集在至少两个功控合并周期中每个所述 功控合并周期传输的 TPC, 分别获得所述激活集中全部无线链路集在每个功 控合并周期传输的 TPC的合并结果; 比较每个所述功控合并周期中所述每个 传输上行授权信息的无线链路集传输的 TPC与所述合并结果, 获得所述至少 两个功控合并周期中每个所述传输上行授权信息的无线链路集传输的 TPC与 所述合并结果的相同次数; 选择传输与所述合并结果的相同次数最多的 TPC 的无线链路集; 或者, 选择传输与所述合并结果的相同次数超过预设阔值的 TPC的无线链路集。
其中, 所述依据所述候选上行授权信息, 获得一个目标上行授权信息, 包 括:依据所述候选上行授权信息中最大的候选上行授权信息或最小的候选上行 授权信息, 获得所述目标上行授权信息。
所述终端还包括: 接收单元 44, 用于接收网络设备发送的选择指示; 所述选择至少一个传输上行授权信息的无线链路集, 包括: 依据所述选择 指示, 选择至少一个传输上行授权信息的无线链路集。 图 4对应的终端的实施例中各模块或单元执行的具体功能可参照之前方 法实施例, 不作赘述。
请参考图 5 , 其为本发明实施例所提供的一种终端的结构示意图, 与方法 实施例一、 图 2和图 4对应; 如图所示, 该终端包括:
存储器 50, 用于存储包括程序例程的信息;
处理器 51,与存储器 50连接,用于控制所述程序例程的执行,具体包括: 选择至少一个传输上行授权信息的无线链路集,每个无线链路集为终端与一个 基站建立的无线链路的集合;获得所述至少一个传输上行授权信息的无线链路 集通过物理信令所传输的上行授权信息;依据所述至少一个传输上行授权信息 的无线链路集所传输的上行授权信息,获得每个所述传输上行授权信息的无线 链路集对应的候选上行授权信息; 依据所述候选上行授权信息, 获得一个目标 上行授权信息。
图 5对应的终端的实施例中各模块或单元执行的具体功能可参照之前方 法实施例, 不作赘述。
请参考图 6, 其为本发明实施例所提供的一种网络设备的功能方块图, 与 方法实施例二和图 3对应; 如图所示, 该网络设备包括:
处理单元 60 , 用于获得选择指示;
发送单元 61 , 用于向终端发送所述选择指示, 以指示所述终端依据所述 选择指示选择至少一个传输上行授权信息的无线链路集,以及获得所述至少一 个传输上行授权信息的无线链路集通过物理信令所传输的上行授权信息,依据 所述至少一个传输上行授权信息的无线链路集所传输的上行授权信息,获得每 个所述传输上行授权信息的无线链路集对应的候选上行授权信息,依据所述候 选上行授权信息, 获得一个目标上行授权信息; 每个无线链路集为终端与一个 基站建立的无线链路的集合。
图 6对应的网络设备的实施例中各模块或单元执行的具体功能可参照之 前方法实施例, 不作赘述。
请参考图 7, 其为本发明实施例所提供的一种网络设备的结构示意图, 与 方法实施例二和图 3对应; 如图所示, 该网络设备包括:
存储器 70, 用于存储包括程序例程的信息;
处理器 71 , 与存储器 70和发射机 72分别连接, 用于控制所述程序例程 的执行, 具体包括: 获得选择指示;
发射机 72 , 用于向终端发送所述选择指示, 以指示所述终端依据所述选 择指示选择至少一个传输上行授权信息的无线链路集,以及获得所述至少一个 传输上行授权信息的无线链路集通过物理信令所传输的上行授权信息,依据所 述至少一个传输上行授权信息的无线链路集所传输的上行授权信息,获得每个 所述传输上行授权信息的无线链路集对应的候选上行授权信息,依据所述候选 上行授权信息, 获得一个目标上行授权信息; 每个无线链路集为终端与一个基 站建立的无线链路的集合。
图 7 对应的网络设备的实施例中各模块或单元执行的具体功能可参照之 前方法实施例, 不作赘述。
需要说明的是,作为一种具体实施方式, 上述一个功控合并周期指的是所 述 TPC的合并结果对应的功控合并周期。其中,使用所述 TPC的合并结果进 行 DPCCH功控的时隙上, 所述目标 SD开始进行 E-TFC选择。 本发明沿用 协议中已经定义的 TPC的时序关系, 并且不对上行授权信息的时序关系进行 限制, 即不对所述候选上行授权信息的发送时间进行限制。 其中, 功控合并周期的长度等于一个时隙, 如图 8所示, 如果下行信道为 专用物理信道(Dedicated Physical Channel, DPCH ), 功控合并周期起始于 下行时隙的边界,如图 9所示,如果下行信道为分数专用物理信道( Fractional Dedicated Physical Channel, F-DPCH ), 功控合并周期起始于下行时隙边界 之后的 512 个码片。 一个功控合并周期可能占据一个时隙的后半部分和下一 个时隙的前半部分。 本发明实施例的技术方案具有以下有益效果: 终端依据基站下小区通过无线链路集下发的上行授权信息, 获得用于 E-TFC选择的目标上行授权信息, 由于基站与终端之间通过物理信令交互,且 物理信令的实时性较高, 终端可以较快的获得上行授权信息,从而实现软切换 下终端上更新上行授权信息的速度较快, 可以获得更加准确的上行授权信息, 终端可以获得明显的速率自适应的增益,保证终端在一定发送功率上获得尽可 能高的业务速率, 使得终端的发送功率更加稳定; 同时, 终端较快的获得多个 上行授权信息后, 可以适配出更加准确的 E-TFC, 以实现数据发射。 以上所述仅为本发明的较佳实施例而已, 并不用以限制本发明, 凡在本发明的 精神和原则之内, 所做的任何修改、 等同替换、 改进等, 均应包含在本发明保 护的范围之内。

Claims

权 利 要 求
1、 一种软切换下上行授权信息的处理方法, 其特征在于, 所述方法包括: 选择至少一个传输上行授权信息的无线链路集,每个无线链路集为终端与 一个基站建立的无线链路的集合;
获得所述至少一个传输上行授权信息的无线链路集通过物理信令所传输 的上行授权信息;
依据所述至少一个传输上行授权信息的无线链路集所传输的上行授权信 息, 获得每个所述传输上行授权信息的无线链路集对应的候选上行授权信息; 依据所述候选上行授权信息, 获得一个目标上行授权信息。
2、 根据权利要求 1所述的方法, 其特征在于, 所述上行授权信息包括以 下信息中一个: 授权偏置信息、 信干噪比 SINR差异信息、 增强专用信道传输 格式组合 E-TFC偏置信息或功率偏置信息。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述选择至少一个传 输上行授权信息的无线链路集, 包括:
依据多个无线链路集传输的 TPC的合并结果和所述多个无线链路集中每 个传输上行授权信息的无线链路集传输的 TPC, 选择所述至少一个传输上行 授权信息的无线链路集。
4、根据权利要求 3所述的方法, 其特征在于, 所述 TPC为用于调整上行 DPCCH发射功率的 TPC。
5、 根据权利要求 1至 4中任一项所述的方法, 其特征在于, 所述无线链 路集包括至少一个无线链路,所述获得所述至少一个传输上行授权信息的无线 链路集通过物理信令所传输的上行授权信息, 包括: 通过物理信令从每个传输上行授权信息的无线链路集中至少一个所述无 线链路获得所述上行授权信息。
6、 根据权利要求 3或 4所述的方法, 其特征在于, 所述依据多个无线链 路集传输的 TPC的合并结果和所述多个无线链路集中每个传输上行授权信息 的无线链路集传输的 TPC, 选择至少一个所述传输上行授权信息的无线链路 集, 包括:
依据激活集中每个无线链路集在一个功控合并周期传输的 TPC, 获得所 述激活集中全部无线链路集在所述一个功控合并周期传输的 TPC 的合并结 果;
若所述每个传输上行授权信息的无线链路集传输的 TPC中, 存在与所述 合并结果相同的 TPC, 选择传输与所述合并结果相同的 TPC的无线链路集。
7、 根据权利要求 3或 4所述的方法, 其特征在于, 所述依据多个无线链 路集传输的 TPC的合并结果和所述多个无线链路集中每个传输上行授权信息 的无线链路集传输的 TPC, 选择至少一个所述传输上行授权信息的无线链路 集, 包括:
依据激活集中每个无线链路集在一个功控合并周期传输的 TPC, 获得所 述激活集中全部无线链路集在所述一个功控合并周期传输的 TPC 的合并结 果;
若所述每个传输上行授权信息的无线链路集传输的 TPC中, 不存在与所 述合并结果相同的 TPC, 选择所述多个无线链路集中的服务无线链路集; 或 者, 选择全部传输上行授权信息的无线链路集。
8、 根据权利要求 3或 4所述的方法, 其特征在于, 所述依据多个无线链 路集传输的 TPC的合并结果和所述多个无线链路集中每个传输上行授权信息 的无线链路集传输的 TPC, 选择至少一个所述传输上行授权信息的无线链路 集, 包括:
依据激活集中每个无线链路集在至少两个功控合并周期中每个所述功控 合并周期传输的 TPC, 分别获得所述激活集中全部无线链路集在每个功控合 并周期传输的 TPC的合并结果;
比较每个所述功控合并周期中所述每个传输上行授权信息的无线链路集 传输的 TPC与所述合并结果, 获得所述至少两个功控合并周期中每个所述传 输上行授权信息的无线链路集传输的 TPC与所述合并结果的相同次数;
选择传输与所述合并结果的相同次数最多的 TPC的无线链路集; 或者, 选择传输与所述合并结果的相同次数超过预设阔值的 TPC的无线链路集。
9、 根据权利要求 1至 8中任一项所述的方法, 其特征在于, 所述依据所 述候选上行授权信息, 获得一个目标上行授权信息, 包括:
依据所述候选上行授权信息中最大的候选上行授权信息或最小的候选上 行授权信息, 获得所述目标上行授权信息。
10、 根据权利要求 1至 9中任一项所述的方法, 其特征在于,
所述方法还包括: 接收网络设备发送的选择指示;
所述选择至少一个传输上行授权信息的无线链路集, 包括: 依据所述选择 指示, 选择至少一个传输上行授权信息的无线链路集。
11、一种软切换下上行授权信息的处理方法,其特征在于,所述方法包括: 网络设备获得选择指示;
所述网络设备向终端发送所述选择指示,以指示所述终端依据所述选择指 示选择至少一个传输上行授权信息的无线链路集,以及获得所述至少一个传输 上行授权信息的无线链路集通过物理信令所传输的上行授权信息,依据所述至 少一个传输上行授权信息的无线链路集所传输的上行授权信息,获得每个所述 传输上行授权信息的无线链路集对应的候选上行授权信息,依据所述候选上行 授权信息, 获得一个目标上行授权信息; 每个无线链路集为终端与一个基站建 立的无线链路的集合。
12、 一种终端, 其特征在于, 所述终端包括:
选择单元, 用于选择至少一个传输上行授权信息的无线链路集,每个无线 链路集为终端与一个基站建立的无线链路的集合;
第一处理单元,用于获得所述至少一个传输上行授权信息的无线链路集通 过物理信令所传输的上行授权信息;
第二处理单元,用于依据所述至少一个传输上行授权信息的无线链路集所 传输的上行授权信息,获得每个所述传输上行授权信息的无线链路集对应的候 选上行授权信息;
第三处理单元, 用于依据所述候选上行授权信息, 获得一个目标上行授权 信息。
13、 根据权利要求 12所述的终端, 其特征在于, 所述上行授权信息包括 以下信息中一个: 授权偏置信息、 信干噪比 SINR差异信息、 增强专用信道传 输格式组合 E-TFC偏置信息或功率偏置信息。
14、 根据权利要求 12或 13所述的终端, 其特征在于, 所述选择至少一 个传输上行授权信息的无线链路集, 包括:
依据多个无线链路集传输的 TPC的合并结果和所述多个无线链路集中每 个传输上行授权信息的无线链路集传输的 TPC, 选择所述至少一个传输上行 授权信息的无线链路集。
15、 根据权利要求 14所述的终端, 其特征在于, 所述 TPC为用于调整 上行 DPCCH发射功率的 TPC。
16、 根据权利要求 12至 16中任一项所述的终端, 其特征在于, 所述无 线链路集包括至少一个无线链路,所述获得所述至少一个传输上行授权信息的 无线链路集通过物理信令所传输的上行授权信息, 包括:
通过物理信令从每个传输上行授权信息的无线链路集中至少一个所述无 线链路获得所述上行授权信息。
17、 根据权利要求 14或 15所述的终端, 其特征在于, 所述多个无线链 路集传输的 TPC的合并结果和所述多个无线链路集中每个传输上行授权信息 的无线链路集传输的 TPC, 选择至少一个所述传输上行授权信息的无线链路 集, 包括:
依据激活集中每个无线链路集在一个功控合并周期传输的 TPC , 获得所 述激活集中全部无线链路集在所述一个功控合并周期传输的 TPC 的合并结 果;
若所述每个传输上行授权信息的无线链路集传输的 TPC中, 存在与所述 合并结果相同的 TPC, 选择传输与所述合并结果相同的 TPC的无线链路集。
18、 根据权利要求 14或 15所述的终端, 其特征在于, 所述依据多个无 线链路集传输的 TPC的合并结果和所述多个无线链路集中每个传输上行授权 信息的无线链路集传输的 TPC, 选择至少一个所述传输上行授权信息的无线 链路集, 包括: 依据激活集中每个无线链路集在一个功控合并周期传输的 TPC, 获得所 述激活集中全部无线链路集在所述一个功控合并周期传输的 TPC 的合并结 果;
若所述每个传输上行授权信息的无线链路集传输的 TPC中, 不存在与所 述合并结果相同的 TPC, 选择所述多个无线链路集中的服务无线链路集; 或 者, 选择全部传输上行授权信息的无线链路集。
19、 根据权利要求 14或 15所述的终端, 其特征在于, 所述依据多个无 线链路集传输的 TPC的合并结果和所述多个无线链路集中每个传输上行授权 信息的无线链路集传输的 TPC, 选择至少一个所述传输上行授权信息的无线 链路集, 包括:
依据激活集中每个无线链路集在至少两个功控合并周期中每个所述功控 合并周期传输的 TPC, 分别获得所述激活集中全部无线链路集在每个功控合 并周期传输的 TPC的合并结果;
比较每个所述功控合并周期中所述每个传输上行授权信息的无线链路集 传输的 TPC与所述合并结果, 获得所述至少两个功控合并周期中每个所述传 输上行授权信息的无线链路集传输的 TPC与所述合并结果的相同次数;
选择传输与所述合并结果的相同次数最多的 TPC的无线链路集; 或者, 选择传输与所述合并结果的相同次数超过预设阔值的 TPC的无线链路集。
20、 根据权利要求 12至 19中任一项所述的终端, 其特征在于, 所述依 据所述候选上行授权信息, 获得一个目标上行授权信息, 包括:
依据所述候选上行授权信息中最大的候选上行授权信息或最小的候选上 行授权信息, 获得所述目标上行授权信息。
21、 根据权利要求 12至 20中任一项所述的终端, 其特征在于, 所述终端还包括: 接收单元, 用于接收网络设备发送的选择指示; 所述选择至少一个传输上行授权信息的无线链路集, 包括: 依据所述选择 指示, 选择至少一个传输上行授权信息的无线链路集。
22、 一种网络设备, 其特征在于, 所述网络设备包括:
处理单元, 用于获得选择指示;
发送单元, 用于向终端发送所述选择指示, 以指示所述终端依据所述选择 指示选择至少一个传输上行授权信息的无线链路集,以及获得所述至少一个传 输上行授权信息的无线链路集通过物理信令所传输的上行授权信息,依据所述 至少一个传输上行授权信息的无线链路集所传输的上行授权信息,获得每个所 述传输上行授权信息的无线链路集对应的候选上行授权信息,依据所述候选上 行授权信息, 获得一个目标上行授权信息; 每个无线链路集为终端与一个基站 建立的无线链路的集合。
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